Yourjekiseni molding screw barrelinosarudza kunyunguduka mhando, kupfura kuenderana, uye nguva yekutenderera. Pazasi: maitiro ekusarudza geometry uye kurapwa kwepamusoro kweresin yako, maitiro ekuchengetedza seti, uye maitiro ekutsvaga kuremara kumashure kune screw, dhiramu, kana cheki mhete pachinzvimbo chekudzingirira kuburikidza nemuchina marongero. Yedu nitrided 38CrMoAlA jekiseni screws inotakura 0.5–0.8 mm nitrided layer pa950–1050 HV, sutu PE, PP, PS, uye ABS, uye inobata girazi fiber inosvika makumi matatu%. Zvakapfuura izvozvo, kana kuti pane corrosive resin, chibhorani chinoda kupfapfaidza zvine hard-alloy kusvika pa62 HRC. Kana zvakabuda zvakadonha uye ma cycles akatambanudzwa, verenga tafura yekugadzirisa usati wabata imwe setpoint.
Chii chinonzi Injection Molding Screw Barrel?
Iyo screw uye dhiramu zvinoumba plasticizing unit yemuchina wekuumba jekiseni. Pamwe chete, vanotora mapellets akasimba kubva kune hopper, vonyungudusa, voasanganisa kuita yunifomu inonyungudika, mita pfuti chaiyo, uye jekiseni iyo pfuti muforoma. Chese chikamu chinogadzirwa nemuchina wako chinopfuura nepairi iyi.
Molders anotsiva ma nozzles, tune molds, uye gadzirisa tembiricha kwemavhiki vasati vatarisa paplasticizing unit. Kurongeka ikoko kuri kumashure. Kana iyo screw kana mbiya ikapfeka, hapana setpoint pane controller inodzosera maitiro kumashure.
Basa reScrew muPlasticization
Iyo screw ndiyo inonyanya kunyunguduka, uye kwete nemabhandi ekudziya. Kupisa kwemugaba kunopa, asi iyo inonyanya kunyunguduka nzira ndeyeshear heat: screw inokwevera polymer pamadziro anopisa mbiya, uye kukwesha kunogadzira kupisa mukati mechinhu chacho pachacho. Ndokusaka screw geometry ichichinja kunyunguduka tembiricha kunyangwe yako seti isingafambi.
Siruuru inometawo pfuti. Inotenderera kuita purasitiki, inodzokororwa sekunyungudika kunoungana pamberi pemuromo, yobva yamira. Kureba kwairi kudzoserwa ndiko saizi yako yekupfura. Chero kunyungudika kunobvinza neshure pamusoro pendege kana kupfuura cheki ring inoshatisa kuyerwa ikoko.
Pakupedzisira, screw inopinza. Iyo inomira kutenderera uye inotyaira kumberi senge plunger, ichimanikidza kunyungudika nemumuromo. Iri basa rehuviri, kutenderedza uye kudzokorora, rinoparadzanisa siruu yejekiseni kubva kune extrusion screw.
Basa reBarrel muKutamisa Kupisa uye Kuchengetedzwa
Bhobho imudziyo wakajeka wekumanikidza une bore rinopisa. Iyo ine jekiseni kudzvanywa, inotamisa kupisa kubva kumabhendi ichiisa mupolymer, uye inopa madziro akaoma ayo ayo screw shears zvinhu.
Bore rayo rinofanira kugara rakatenderera, rakatwasuka, uye rakamanikana. Kana chibhorani chawedzera kukura, kubvumidzwa pakati pekubhururuka kwescrew nemadziro edhiramu kunokura. Melt ichibva yadonha kumashure pamusoro pendege pane kuenda kumberi, uye chiyero cheplasticizing chinodonha.
Kupisa kwebhari kunotemwa, kazhinji kudyisa, kudzvanya, uye metering, imwe neimwe iine controller yayo uye thermocouple. Iyo yakanyungudutswa thermocouple mune imwe zone inogona kubika zvinhu kwemwedzi yakawanda uku chiratidziro chichiverenga zvakajairika.
Mashandiro Akaita Screw neBharel Pamwe Chete seSystem
Zvikamu zviviri zvinoita sepairi inofananidzwa, uye nhamba inotsanangura vaviri iyiradial clearance: hafu yemusiyano pakati pebarrel bore diameter uye screw flight dhayamita.
Clearance idiki nekugadzira. Mutemo weindastiri wegunwe weseti itsva inosvika 0.001 inch ye clearance padivi painchi yega yega ye screw diameter. Pane 60 mm (inenge 2.36 in) sikurufa, inomhara pedyo ne0.06 mm padivi. Dhirowa yako yekuvaka ndiyo chiremera, uye inofanirwa kugara iri nhamba yaunotarisa nezvayo.
Mukaha muduku iwoyo unoshanda chaizvo. Inomanikidza iyo polymer kugera kumadziro embiru pane kutsvedza yapfuura. Kaviri kuchena uye kugera kunopera simba, kunyunguduka kunononoka, kubuda kunodonha, uye muchina unoedza kutsiva nekupisa kwausingafanire kudiwa.
Kutsiva chikamu chimwe chete hakuwanzogadzirisa peya yakasakara. Iyo screw nyowani mukati medhiramu yakasakara inodzoreredza chete hafu yakarasika clearance, uye kusawirirana kunopfeka chikamu chitsva nekukurumidza kupfuura zvazvinofanira.
Anatomy yeInjection Molding Screw
Iyo yakajairwa jekiseni screw inokamura kuita matatu mazoni pamwe netipi musangano. Imwe neimwe nzvimbo ine basa, uye imwe neimwe inokundikana nenzira yaungaziva.
| Zone | Channel kudzika | Job | Kukundikana kunoratidzika sei |
|---|---|---|---|
| Feed | Deep | Tora muma pellets, uendese mberi | Kuvharirwa, kufa nenzara, kudya kwakashata, kupora kusingawirirani |
| Kudzvinyirira (kuchinja) | Shaving | Compact uye nyungudusa iyo polymer pamadziro edhiramu | Unmelts, kusanganisa kwakashata, nzvimbo iyi inopfeka kutanga |
| Metering | Shallow | Homogenize uye kupomba kunyungudika kunoenderana | Shot kusiyana, tembiricha spikes |
| Zano uye cheki mhete | — | Chisimbiso pamusoro pekudzoka shure panguva yejekiseni | Shot size drift, short shots, cushion kurasikirwa |
Feed Zone
Machenera akadzika anobata mapellets kubva pahuro yehuro uye oaendesa mberi sezvakaoma. Iyi zone haina kunyungudika zvakanyanya. Zvinoratidza.
Matambudziko ekudya anoita seanonyungudika. Kana mapellet akavharika pahuro, kana chikamu chekudya chikapisa zvakanyanya uye mapeteti akapfava nekunamira nekukurumidza, screw inofa nenzara. Nguva yekudzorera inoshanduka, uye saizi yepfuti inotevera. Tarisa kutonhora-huro kutonhora usati wapomera geometry.
Kudzvinyirira (Shanduko) Zone
Iyo chiteshi inodzika zvishoma pachikamu ichi. Iyo shallow inosvina iyo polymer kumadziro inopisa yedhiramu uye inoburitsa kupisa kweshear kunoita kunyungudika.
Iyo compression zone ndipo panowanikwa kupfeka. Dzvinyiriro inokwira pano, uye mafirita anogaya anogaya zvakanyanya pano. Paunoyera screw yakasakara, apa ndipo paunowana nhamba kutanga.
Metering Zone
Machenera asina kudzika, anogara akadzama anoita homogenize kunyungudika nekuipomba kumberi nekudzvanya kwakadzikama. Iyi zone inosarudza kupfura-kupfura kuenderana.
Metering-zone kupfeka kunoratidza senge pfuti mutsauko uye kukwira kunyunguduka tembiricha panzvimbo dzakafanana. Siruuru iri kushanda nesimba kufambisa chinhu chimwe chete.
Screw Tip, Tarisa Mhete & Non-Return Valve
Cheki mhete musangano, dzimwe nguva inonzi vharafu isingadzoki, inofanirwa kutariswa kupfuura yainowana. Inogara pane screw tip uye inoita basa rimwe chete: panguva yejekiseni inovhara, saka inonyungudika inopinda muforoma pane kuseri pamusoro pe screw.
Kana yamira kuisa chisimbiso, unowana kupfurwa-saizi musiyano, mapfuti mapfupi, uye cushion inonyangarika. Molders vanopedza mavhiki vachigadzirisa kudzvanywa kwejekiseni, kubata nguva, uye tembiricha vachidzingirira izvi. Hapana chimwe chazvo chinoshanda, nekuti kunyungudika kuri kutiza neshure kupfuura mhete yakasakara.
Zviratidzo zvitatu zvinonongedza pacheki mhete zvakananga. Cushion inosiyana-siyana kupfurwa pane kugara yakagadzikana. Shot huremu inodonha nepo muchina uchishuma kupora kwakajairika. Uye maitiro anodzokororwa anongoerekana ashanduka asina shanduko mune resin kana kuseta.
Kiyi Yejimetric Geometry Parameters
Nhamba ina dzinotsanangura siruu yejekiseni. Vanzwisise, uye quote yemutengesi inomira kuva bhokisi dema.
L/D Ratio: Tsanangudzo, Formula, uye Zvinokurudzirwa Tsika neResin
L/D reshiyondiko kureba kwekushanda kwesiruu yakakamurwa nedhayamita yekunze kwayo. Siruuru yakareba zvakapetwa ka22 pane yakafara ine L/D ye22:1. Formula inongori L yakakamurwa naD, uye reshiyo inoyera nehukuru: 50 mm sikuruu pa22:1 ine 1,100 mm kushanda kureba.
L/D inodzora kuti yakawanda sei iyo sikuruu inofanira kunyunguduka, kusanganisa, uye kuita homogenize. Yakareba inopa huwandu hwekunyungudika uye kusanganisa kuri nani. Shorter inopa nguva shoma yekugara, iyo inodzivirira kupisa-sensitive resins.
Majekiseni ejekiseni anomhanya mapfupi pane extrusion screws. Iyo screw inogadzirira pfuti imwe panguva pane kupomba nguva dzose, uye zvinhu zvinogara mudhiramu pakati pepfuti. InL/D reshiyo jekiseni kuumbakudzidzira, michina mizhinji inowira pakati pe18:1 ne25:1, ine 20:1 kusvika 22:1 yakajairika pamichina-yechinangwa.
Marezeni anonzwa kupisa akadai sePVC anofarira kupera kupfupi, saka zvinhu zvinopedza nguva shoma zvichipisa. Injiniya mapurasitiki anoda kunyatsonyungudika anofarira magumo akareba. Yedu L/D reshiyo gwara rinovhara kutengeserana-offs zvakadzama.
Compression Ratio: Iyo Inobata Sei Shear Heat uye Melt Hunhu
Compression ratioinofananidza kudzika kwechiteshi munzvimbo yekudyisa kune kudzika kwechiteshi munzvimbo yemamita. Siruu ine chiteshi chekudya chakadzika katatu kupfuura metering chiteshi chine reshiyo yekumanikidza ye3: 1.
Compression ratio inoisa kuti screw inoshanda sei zvinhu. Kudzvinyirirwa kwepamusoro kunoreva kuveura kwakawanda, kupisa kwemagetsi, uye kunyungudika kwakanyanyisa. Lower compression inobata iyo polymer zvinyoro nyoro.
Imatanidze neresin, kwete kune yaunofarira nhamba yakakura. Low-viscosity polyolefins inoda shear yakanaka kuti inyunguduke zvakachena. Kupisa-sensitive resins sePVC, PC, uye POM inoshatisa pasi pekugera iyo PE yaizobvisa. Yedu yekumanikidza reshiyo gwara rinoshanda kuburikidza nemarenji.
Kudzika Kwendege, Hupamhi hweChannel, uye Kubata Kwavo pane Kubuda
Compression reshiyo ireshiyo, uye screws maviri ane reshiyo imwechete anogona kuita zvakasiyana. Mhedziso udzamu hunokosha.
Iyo yakadzika metering chiteshi inofambisa zvimwe zvinhu pakuchinja, ichisimudza chiyero cheplasticizing, asi inosanganisa zvishoma uye inopa yakaderera yunifomu inonyungudika. Iyo isina kudzika metering chiteshi inosanganiswa zvirinani uye inopa yakanyanya kuenderana tembiricha, painobuda yakaderera pane imwe nguva.
Kufara kwendege uye helix angle kunokanganisa kufambisira zvakanaka uye shear iyo zvinhu zvinoonekwa panzvimbo yekubhururuka. Aya ndiwo magadzirirwo aunotsanangura nekutsanangura maitiro ako kune screw dhizaini, kwete nhamba dzaunofanirwa kutora kubva patafura.
Screw Diameter uye Shot Size Hukama
Screw diameter inoseta kugona kwemushini. Sikuruu hombe inobvisa huwandu hwevhoriyamu pamirimita yekufamba kuenda mberi, saka inopa pfuti hombe.
Mutemo unoshanda ibhande rekunyaradza, kwete muganhu wakaoma. Mhanya pfuti inoshandisa chikamu chidiki chekugona kwebhodhoro uye zvinhu zvinogara mudhiramu kureba, kuchovha bhasikoro nekupisa nekudzikisira. Mhanya panenge pakazara uye unorasikirwa necushion inodiwa pakurongedza kunoenderana.
Vazhinji vanogadzira vanonangidzira pfuti pane imwe nzvimbo pakati peiyo dhiramu inogona kushandiswa. Kana chikamu chako chikagara kunze kwebhendi iyo, iyo chaiyo gadziriso ndeye akasiyana screw dhayamita, kwete yakaoma muchina kuseta.
Heino tafura yedu yakadhindwa yedimension, inoratidza kuti pfuti inoteedzera sei screw uye saizi yedhiramu mukati merudzi rwatinovaka. Ishandise kutsvaga muchina wako, kana kuita hutsanana-tarisa dhayamita iyo mutengesi arikutora iwe.
| Pfuti (g) | Screw Ø × kureba (mm) | Barel Ø × kureba (mm) |
|---|---|---|
| 30–90 | Φ30 × 900 | Φ85 × 860 |
| 60–125 | Φ35 × 910 | Φ85 × 860 |
| 100–150 | Φ38 × 935 | Φ95 × 900 |
| 125–160 | Φ40 × 980 | Φ95 × 910 |
| 125–300 | Φ42 × 1030 | Φ105 × 1110 |
| 250–400 | Φ45 × 1210 | Φ115 × 1165 |
| 300–500 | Φ50 × 1300 | Φ125 × 1260 |
| 450–600 | Φ55 × 1335 | Φ130 × 1320 |
| 500–700 | Φ56 × 1350 | Φ130 × 1350 |
| 500–700 | Φ60 × 1380 | Φ140 × 1350 |
| 650–800 | Φ65 × 1415 | Φ150 × 1420 |
| 700–1000 | Φ70 × 1790 | Φ160 × 1685 |
| 80–125 | Φ75 × 1825 | Φ170 × 1725 |
| 100–150 | Φ80 × 2000 | Φ180 × 1805 |
| 125–200 | Φ85 × 2300 | Φ190 × 1900 |
| 200–300 | Φ90 × 2700 | Φ210 × 2000 |
| 250–500 | Φ100 × 2600 | Φ230 × 2405 |
| 300–600 | Φ110 × 2600 | Φ256 × 2590 |
| 400–1000 | Φ120 × 2800 | Φ256 × 2800 |
| 600–800 | Φ130 × 3010 | Φ256 × 2970 |
| 800–1000 | Φ145 × 3010 | Φ256 × 3200 |
| 1000–1500 | Φ160 × 3500 | Φ270 × 3200 |
| 1300–2500 | Φ170 × 3415 | Φ317 × 3380 |
Zvinhu zviviri zvekuverenga kubva mairi. Shot capacity inokwira nedhayamita, sezvinodiwa nefizikisi. Uye iyo dhiramu yekunze dhayamita inokura nayo, ndosaka hombe sikuru isiri yemahara kusimudzira: iri rakasiyana saizi yemuchina kirasi.
Mhando dzeJekiseni Molding Screws: Ndeipi Yaunoda?
Mhuri shanu dze screw dzinovhara dzinenge jekiseni rese rekushandisa. Iyo chaiyo inoenderana neresin yako uye izvo chikamu chako chinoda.
| Screw type | Zvazvinoita | Zvakanakisa zve | Kushaya simba |
|---|---|---|---|
| Chinangwa chikuru (GP) | Ndege imwe chete, nzvimbo nhatu dzakajairika | PE, PP, PS, ABS, akawanda ezvigadzirwa resin | Kukanganisa geometry; inorwisana neinoda resin |
| Barrier | Kubhururuka kwechipiri kunoparadzanisa mubhedha wakasimba kubva padziva rakanyunguduka | Kunyungudika kurinani, kubuda kwepamusoro, zvikamu zvisinganyungudika | Mari yakawanda; overkill pane nyore resin |
| Kusanganisa / kusanganisa | Inowedzera Maddock kana pini yekusanganisa zvikamu | Colour masterbatch, akazadzwa makomisheni, streak-sensitive zvikamu | Extra shear; zvisiri izvo kune kupisa-sensitive resins |
| Vented (matanho maviri) | Decompression zone plus vent port inokwevera pamhepo | Hygroscopic resins uko kuomesa kusingaite | Complex; mhepo inogona kudonha kana isingaenderane |
| PVC-zvakananga | Kutsikirira kwakaderera, nzvimbo dzakakwenenzverwa, hapana nzvimbo dzakafa | Yakaomarara uye inochinjika PVC | Chinangwa-chakavakwa; kwete siruuru-chinangwa |
Chinangwa Chese (GP) Chikuro: Zvakanyanya Kuzivikanwa, Zvakanakisa?
Iyo GP screw ndeye kubvumirana, uye yakanaka. Inomhanya PE, PP, PS, uye ABS zvinogamuchirika, iyo inovhara zvakanyanya kuumbwa kwezvinhu. Vagadziri vemichina vanoitumira seyakajairwa nekuti ndiyo yakachengeteka default kana vasingazive chauchamhanya.
Iko kukanganisa kunodhura iwe kana resin inosvika pakudiwa. Siruu yeGP panaironi yakazadzwa negirazi inopfeka nekukurumidza. A GP screw pane yakaoma PVC inosvibisa zvinhu. Iyo GP screw inosundirwa kuti ibude zvakanyanya pane yakatetepa-madziro chikamu inoburitsa isina kunyungudika. Kana chero ipi zvayo inotsanangura maitiro ako, screw-yakavakirwa screw inozvibhadharira pachayo mune zvimedu chete.
Barrier Screw: Zvirinani Melt Separation uye Homogeneity
A barrier screw anowedzera kubhururuka kwechipiri kuburikidza nenzvimbo inonyungudika. Kubhururuka ikoko kunopatsanura nemuviri mapellet akasara akasimba kubva pakunyunguduka kwatove kuumbwa, uye kunochengeta maomarara akatsikirirwa pamadziro anopisa emadhiramu paanoramba achinyunguduka.
Pasina chipingamupinyi, zvimedu zvakasimba zvinovanda mukati medziva rakanyunguduka, rakavharirwa kubva kumadziro, uye rinogona kurarama kusvika kumuromo sekusanyungudika. Neimwe, kunyunguduka kunopedzisa zvizere uye zvakanyanya kuenderana.
Kubhadhara kuri nani kunyungudusa kufanana pachinhu chimwe chete kana chepamusoro chinobuda, chinotaridza sezvisinganyungudika zvishoma, kudzora kupfurwa kwakasimba, uye hwindo rakakura rekuita. MaMolders anorongedza akatetepa-madziro, optical parts, kana chero chinhu chisina kunyungudika chinofanira kukumbira chimwe nezita.
Kusanganisa / Kubatanidza Screw: Yekuzadza uye Ruvara Masterbatch Zvishandiso
Kusanganisa screws kuwedzera yakatsaurirwa kusanganisa chikamu, kazhinji padhuze nemuromo. Maddock (fluted) zvikamu zvinomanikidza kunyunguduka kuburikidza nepakamanikana, kuputsa zvidimbu zvisina kunyunguduka neshear. Pini musanganiswa kupatsanura uye kusanganisa kuyerera, kugovera ruvara uye filler.
Shandisa imwe kana ruvara runyoro rwuri dambudziko remhando, kana masterbatch dispersion ichiita, kana kana kugovera kwekuzadza kuchifambisa chikamu chekuita. Kutengeserana kunowedzerwa shear, izvo zvinoita kuti kusanganisa zvikamu zvisarudzwe zvisiri izvo zvekupisa-sensitive resins izvo zvatove pedyo nemuganhu wavo wekuora.
Vented / Degassing Screw: YeHygroscopic Resins
Siruu inobuda mumhepo inoita nhanho mbiri. Danho rekutanga rinonyunguduka, ipapo chiteshi chinodzika nekukasira, chichidonhedza kunyunguduka kusvika pedyo ne zero pachiteshi chemhepo chakachekwa mudhiramu. Unyoro uye mhepo inopisa zvinopukunyuka ipapo, kazhinji pasi pevacuum. Chikamu chechipiri chinobva chadzoreredza kunyungudika kwejekiseni.
Izvi zvinoshanda kune hygroscopic resins uko kuomesa kusingaite kana kusavimbika. Inotakurawo njodzi: kana nhanho mbiri idzi dzisina kuenderana, nyungudika inosundira kunze kwechiteshi chemhepo panzvimbo pegesi. Iyo ine mhepo screw uye dhiramu inobuda inofanira kugadzirwa pamwechete, ndosaka ichitsanangurwa seti uye isina kudzoserwa zvakajairika.
PVC-Specific Screw Dhizaini: Nei Yakajairwa Screws Inotadza nePVC
Yakaoma PVC inoranga yakajairwa sikururu munzira mbiri kamwechete. Inodzikisira pasi peshear, ichiburitsa hydrogen chloride, iyo inobva yasvibisa simbi yayakagara nayo. Kukuvadza kunotanga mushandisi asati aona kukanganisa.
Iyo PVC screw inopindura zvese kutyisidzira. Low compression inochengeta shear zvinyoro. Nzvimbo dzakapepereswa uye neyakafa-nzvimbo-isina geometry inomisa zvinhu kubva mukumira uye kubika. Iyo seti inoda kugara ichida corrosion resistance mukurapa kwepamusoro, kwete kungopfeka kuramba. YeduPVC screw barrel guideinovhara chemistry, uye yeduconical twin screw barrelsshumira PVC padivi extrusion.
Maitiro ekusarudza iyo Right Screw Barrel yeResin Yako
Resin kusarudzwa kunotyaira imwe neimwe sarudzo pane peji: geometry, simbi, uye pamusoro. Verenga tafura, wozoverenga zvinyorwa pasi payo, nokuti zvinyorwa zvinotakura yambiro.
| Resin | Yakajairika L/D | Typical compression ratio | Screw type | Zvinyorwa zvakakosha |
|---|---|---|---|---|
| PP / PE | 20:1 – 22:1 | 2.5:1 – 3.5:1 | GP kana chipingamupinyi | Kukanganwira. Inoda shear yakanaka kuti inyunguduke zvakachena |
| PS / HIPS | 20:1 – 22:1 | 1.8:1 – 2.5:1 | GP | Low viscosity, inonyunguduka nyore. Kusanganisa zvinyoro paHIPS |
| ABS | 20:1 – 24:1 | 2.0:1 – 2.5:1 | GP kana chipingamupinyi | Amorphous. Tarisa kupisa kweshear, mitsetse inoratidza zviri nyore |
| PC uye engineering mapurasitiki | 22:1 – 25:1 | 2.0:1 – 2.5:1 | Barriers kana GP, kugera kwakaderera | High melt tembiricha, nhete hwindo. Yakareba L/D, kudzvanya zvinyoro |
| PVC yakaoma | 18:1 – 20:1 | 1.6:1 – 2.5:1 | PVC-zvakananga | Corrosion resistance haisi yesarudzo. Nguva pfupi yekugara |
| PVC inoshanduka | 18:1 – 20:1 | 2.0:1 – 2.8:1 | PVC-zvakananga | Kukanganwira kupfuura kuomarara, kuchiri kukanganisa |
| PET (preform) | 20:1 – 24:1 | Yakaderera, chaiyo metering | Chinangwa-yakavakwa PET | Pukuta kana kudzikisira. Kugera kwakaderera, kugara kudiki, nzvimbo dzakakwenenzverwa |
| POM (acetal) | 20:1 – 22:1 | 2.5:1 – 3.5:1 | GP, kugera kwakaderera | Inoderedza zvakanyanya kana yakanyanyisa. Precise tembiricha control |
| Girazi-yakazara / inoputika | Per base resin | Per base resin | Base type + hard pamusoro | Geometry inotevera base resin. Thepamusorondizvo zvinochinja: enda bimetallic |
Nzira yekushandisa tafura iyi:aya ndiwo akajairwa akadhindwa siyana uye mapoinzi ekutanga, kwete zvakatemwa. Muchina wako, giredhi rako, chikamu chako, uye zvaunobuda zvinochinja nhamba. A screw dhizaini inosimbisa iyo yekupedzisira geometry inopesana nemaitiro ako chaiwo. Usamboodha kubva patafura yegeneric pasina hurukuro iyoyo.
PP uye PE: Semi-crystalline, Moderate Shear
Polyolefins ndiyo kesi iri nyore. Vanoshivirira kuveura, kunyungudika nepahwindo rakafara, uye kuregerera GP screw. Kutsikirira kuri pakati nepakati kunoshanda nemazvo, nekuti aya akadzika-viscosity resin anoda kugera kwakanaka kuti anyunguduke zvakachena pane kutsvedza nehafu-yakanyungudutswa.
Sunda zvinobuda zvakasimba pamadziro akatetepa, uye siruu inovhara inowana mutengo wayo nekuendesa yakawedzera kunyungudika nekumhanya kwakafanana.
ABS uye PS: Amorphous, Tarisa Shear Kupisa
Amorphous resins inopfava pamusoro pemhando pane kunyungudika painopinza. PS inomhanya yakaderera compression nekuti inonyungudika zviri nyore. ABS inoda kutarisirwa kwakawanda: inoratidza mitsetse uye splay kana ichidzikisira, uye kupisa kwekugera kazhinji ndicho chikonzero.
Kana zvikamu zveABS zvichitevedzana uye maseti ako achitaridzika zvakanaka, fungidzira shear usati wafungidzira dryer. Chiyero chehukasha chekumanikidza pane kupisa-sensitive amorphous resin inogadzira kukanganisa kwayo.
PC neEngineering Plastics: High Temperature, Yakareba L/D
PC, nylon, PBT, uye hama dzavo dzinonyunguduka kumusoro uye kudzikisira pedyo pamusoro pazvo. Vanoda kunyatsonyungudika, iyo inopokana kwenguva yakareba L / D, asi zvakare vanoranga nguva yekugara, iyo inopesana nekubata kunyungudika mudhiramu hombe.
Chigadziriso chakareba L / D nekudzvanya zvinyoro uye pfuti yakaringana saizi. Tora saizi yepfuti isiriyo paPC uye zvinhu zvinotenderera kuburikidza nekupisa kusvika yatsvuka, zvisinei nekuti yakanaka sei screw.
PVC Yakaoma uye Inoshanduka: Corrosion Resistance Yakakosha
Zvese zviri pamusoro pePVC zvinoshanda pakusarudza. Yakaomarara PVC inogara pamucheto wakaderera wezvese L / D uye compression, nekuti nguva nekugera zvese vavengi. Iko kurapwa kwepamusoro kunofanirwa kuramba kuonda, kwete kungoputika, uye izvo zvinoshandura sarudzo yealloy mukati mebimetallic barrel.
PET uye POM: Low Shear, Precise Temperature Control
PET inonzi hygroscopic. Mvura iri munyunguduka inonyungudutsa hydrolyzes cheni dzepolymer, inodonhedza intrinsic viscosity, uye inosiya preforms isina brittle uye yakasviba nepo muchina uchiita kunge uri kushanda zvakanaka. Pukuta resin nemazvo, mhanyisa shear yakaderera, chengeta pekugara papfupi, uye tsanangura nzvimbo dzakakwenenzverwa kuitira kuti madhipoziti asaite.
POM inoshivirira zvakajairwa kudzvanywa asi inodzikisira zvakanyanya kana yanyanya kupisa, uye zvigadzirwa zvayo zvinosvibisa zvine njodzi. Kudzora tembiricha uye nguva yekugara kuranga kunokosha kupfuura kungwara geometry.
Girazi-Yakazadzwa uye Zvishandiso Zvinoshungurudza: Iyo 30% Mutsetse
Heino mutemo wakajeka pane peji, uye inhamba, kwete manzwiro.Girazi fiber inosvika makumi matatu muzana: nitrided 38CrMoAlA seti inoibata.Tinovaka nekuyera masiruuru edu ejekiseni renitrided chaiwo, akadzima uye akapfava, tozoiswa gas-nitrided kusvika pa 0.5–0.8 mm kesi pa950–1050 HV.
Pamusoro pe30% girazi, kana ine mineral filler uye inodzoreredza murazvo pamusoro, iyo nzvimbo inofanirwa kuchinja.Iyo nitrided kesi ndeye diffusion layer, uye abrasive filler inocheka mukati mayo nekukasira kupfuura iyo simbi iri pasi inokodzera.
Ndipo apo abimetallic screw barrelinomira kukwidziridza uye inova mataurirwo chaiwo: alloy yakaoma yakapfapfaidza denderedzwa rakazara kutenderedza nzvimbo yebore, zvichitora kuoma kwemukati kusvika ku62 HRC. Iyo geometry ichiri kutevedzera base resin. Nzvimbo chete inoshanduka. Yedubimetallic vs nitrided gwarainoshanda kuburikidza nemutengo wepfungwa.
Mhando dzeBarel, Zvishandiso, uye Kurapa Kwepamusoro
Bhari harikundike zvakanyanya. Inovhura, chinyararire, uye inotora zvaunobuda nazvo. Zvinhu uye pamusoro zvinosarudza kuti zvinotora nguva yakareba sei.
Standard Nitrided Steel Barrel: Applications and Limits
Nitriding inoparadzira nitrogen munzvimbo yesimbi, ichigadzira bhokisi rakaoma. Isu tinoisa gasi-nitride yedu 38CrMoAlA jekiseni screws pa500–560 °C, tichigadzira nitrided layer 0.5–0.8 mm ukobvu pa950–1050 HV. Izvo zvinosimudza kusagadzika kwekupfeka ne 30-40% pamusoro pesimbi isina kugadzirwa.
Nheyo yesimbi inodzimwa uye inodziya kutanga, iyo inosimudza shear kupfeka kusagadzikana ne50% pachayo. Pamwe chete, nhanho mbiri idzi dzinopa hupenyu hwesevhisi hwemaawa angangoita gumi, 000-20,000 pamafuta asingaore akadai sePE nePP.
Muganhu waro ndiwo udzamu hwenyaya. Kana abrasion ichicheka nepakati peiyo nitrided layer, iyo yakapfava yepakati inopfeka nekukurumidza. Isu tinoyera yedu nitrided jekiseni screws yegirazi-fibre-yakasimbiswa makomisheni anosvika makumi matatu muzana (PA pamwe negirazi fibre, semuenzaniso). Pamusoro pazvo, kana pane zvinoparadza resins, iyo nitrided kesi inodarika uye iyo yepamusoro inofanirwa kuchinja.
Bimetallic Barrel: Kuvaka, Mutengo, uye Painobhadhara
Bimetallic barrel inochengeta alloy-simbi muviri uye inosanganisa yakaparadzana kupfeka alloy mubore. Pamadhiramu edu tinopfapfaidza alloy yakaoma kutenderedza denderedzwa yakazara yebore's wear zone, zvichiunza kuoma kwemukati kusvika 62 HRC.
Iyo imhando yakasiyana yedziviriro kubva kune nitriding. Nitrided case idiffusion layer inoyerwa nezvidimbu zve millimeter. Iyo yakapfapfaidzwa kana yakasanganiswa alloy bore inhete yesimbi yakasiyana, uye abrasive filler inofanirwa kupinda mukati mayo ese.
Iyo alloy inosarudzwa nokuda kwekutyisidzira. Carbide-rich uye tungsten-carbide nzvimbo dzinoramba abrasion kubva girazi uye mineral fillers. Nickel-bearing alloys anodzivisa ngura kubva kuPVC nemishonga inodzoreredza moto. Sarudza iyo isiriyo alloy uye iwe wakabhadhara bimetallic barrel inogadzirisa dambudziko risiri iro.
Inobhadhara pese pese kana chikafu chako chapwanya kana kuita ngura. Masvomhu ari nyore: kana bimetallic set ikatora nguva yakati wandei sekureba kune nitrided pachinhu chako, mutengo wepamusoro wekutenga unokamura kusvika pamutengo wakaderera pagore, usati waverenga zvimedu uye nguva yekudzikira yaunonzvenga.
Segmented vs Monolithic Barrel: Flexibility vs Precision
A monolithic (imwe-chidimbu) mbiya inogadzirwa kubva kune imwechete muviri. Iyo inobata kutwasanuka uye concentricity zvakanyanya, uye ndiyo yakajairwa yekuumbwa kwejekiseni, uko kunyatso dhiraivha kupfurwa kunoenderana.
Segmented barrels bhoti pamwe chete kubva muzvikamu, izvo zvinobvumira chikamu chakasakara kuti chitsiviwa pasina kukwenya dhiramu rese, uye inobvumira vent ports kuti igadzirwe zviri nyore. Kutengeserana kurongeka: majoini ese mukana wekusarongeka, uye majekiseni majekiseni haakanganwiri pane izvo pane kusanganisa maextruders.
Base Steel uye Sarudzo Yepamusoro Inogara Pairi
38CrMoAlAndiyo base simbi isu muchina yedu jekiseni screws kubva, uye ndiko kugadzika indasitiri nechikonzero. Yayo chromium-molybdenum-aluminium chemistry yakagadzirirwa nitriding: iyo aruminiyamu inoumba yakaoma, yakagadzikana nitrides mune iyo kesi apo musimboti unoramba wakaoma.
Simbi yepasi inotakura mutoro wema mechanical. Nzvimbo pamusoro payo inotora kupfeka, uye ndipo pane sarudzo chaiyo. Sezvo ascrew barrel mugadziriisu tinopa iyo yakazara pamusoro pehuwandu, uye imwe neimwe inopindura kutyisidzira kwakasiyana:
- Nitriding— 0.5–0.8 mm layer pa950–1050 HV. Kuchenesa resin, girazi fiber kusvika ku30%.
- Bimetallic pamusoro pepamusoro— hard alloy yakasangana pabore's wear zone, inosvika 62 HRC. Abrasive uye corrosive basa.
- Tungsten carbide spraying- kune yakaoma abrasion kesi.
- Chrome plating- nzvimbo yakatsetseka, inosunungura-inoshamwaridzana. Inobatsira nekuchinja kwemavara uye kunamatira, kwete neabrasion inorema.
- Simbi isina ngura- apo kurwisa kwekuora kana kuchena kwezvinhu kunotungamira zvinodiwa kwete kupfeka.
Yedu screw barrel materials guide inoenzanisa base masimbi akazara.
Surface Treatments Kuenzaniswa
| Zvinhu / kurapwa | Kuoma | Pfeka kuramba | Corrosion resistance | Zvakanakisa zve |
|---|---|---|---|---|
| 38CrMoAlA, nitrided | 950–1050 HV, 0.5–0.8 mm layer | Kugona | Pakati nepakati | PE, PP, PS, ABS; girazi fiber kusvika ku30%. The economic default default |
| Bimetallic pamusoro pepamusoro | Yakatakura kusvika ku62 HRC | Excellent | Kugona | Girazi-rakazara pamusoro pe30%, mineral-filled, regrind, abrasive duty |
| Tungsten carbide spraying | Yakakwirira kwazvo | Excellent | Kugona | Iyo yakaoma abrasion kesi |
| Nickel-base alloy yakatarisana | Yakasarudzwa pakugadzira | Kugona | Excellent | PVC, fluoropolymers, moto retardants |
| Hard chrome plating | Zvakaoma, zvitete zvikuru | Pakati nepakati | Kugona | Smooth kusunungurwa, nyore kuchinja kwemavara, anti-stick |
| Simbi isina ngura | Pagiredhi | Pakati nepakati | Excellent | Corrosion kana kuchena-inotungamirwa maapplication |
Rondedzera nzvimbo yekudyisa yakasviba mutsara unozomhanya, kwete wakachena. Kutsanangudza nyaya yakachena ndiyo nzira inonyanya kufa seti nyowani nekukurumidza.
Maintenance: Nzira Yekuwana Sei Awa Yese iyo Seti Inogona Kupa
Maintenance haina reverse kupfeka. Iyo inokumisa kubva pakuwedzera kudzivirirwa kupfeka pamusoro pemhando isingadzivisike, uye inokupa iyo data kuronga kutsiva pane kuita kwairi.
Routine Inspection Checklist
| Frequency | Chekutarisa | Sei |
|---|---|---|
| Kuchinja kwese | Melt tembiricha vs yakajairika, nguva yekudzorera, cushion kuenderana, mota mutoro | Izvi zvinokukurwa zvisati zvaoneka |
| Zvese zvinhu kana ruvara shanduko | Geza zvizere; ongorora kucheneswa kwemavara matema kana zvinhu zvakaora | Mavara anoreva nzvimbo dzakafa kana kudzikira pane imwe nzvimbo |
| Monthly | Simbisa thermocouples uye heater mabhendi; tarisa feed-huro kutonhora | Sensor yakakukurwa inobika zvinhu kwemwedzi isingaonekwe |
| Pese apo screw yabuda | Kuyera ndege OD uye dhiramu yakabereka ID panzvimbo dzakatarwa; ongorora cheki mhete | Iyo screw yatobuda. Maminitsi gumi ekuyera ndeye data yemahara |
| Kanenge pagore (abrasive kana corrosive basa) | Kudhonza kwakarongwa: chiyero chekupfeka chakazara, cheki yekuenzanisa, nyora kuverenga | Yakazadzwa, PVC, uye regrind duty inopfeka inokurumidza kukurumidza kupfuura yakachena resin |
Yakakodzera Kuchenesa Maitiro Pakuchinja Resins kana Mavara
Geza pamberi pekumira kwese uye kwese shanduko, pasina kunze kwemazuva akabatikana. Zvinhu zvakasiiwa kuti zvitonhore mukati medhiramu zvinoshatisa, zvinobikwa pamusoro, uye zvinodzoka gare gare semadonhwe matema muchikamu chemutengi.
Shandisa inoshambadzira yekuchenesa komboni yekuchinja kwemavara, yekuvhara, uye usati wachinja kune inopisa-inonzwa polymer. Mhandara PE kana PP inobata maitiro ekuchinja pakati pezvinhu zvinoenderana. High-tembiricha resin sePC uye PMMA inobata zvakasimba uye inoda kucheneswa kwehasha.
Geza usati wavhara, kwete chete usati watanga. Zvaunosiya mubhodhoro rinotonhodza rinova dambudziko raunorwa panotanga kunotevera.
Maitiro ekuyera Screw-to-Barrel Clearance
Ichi ndicho chiyero chinoshandura maonero kuita chokwadi, uye zvitoro zvizhinji zvinorisvetuka.
- Dhonza uye uchenese sikuruu.Kupisa, nemhangura kana midziyo yemhangura. Usambofa simbi scrapers, iyo inocheka yakabatwa pamusoro screw inotsamira.
- Maka nzvimbo dzekuyerapamwe nehurefu hwekushanda: feed, shanduko, uye metering pane zvishoma.
- Kuyera ndege ODine micrometer yekunze panzvimbo yega yega, ichitora kuverenga panzvimbo dzinoverengeka dzakatenderedza denderedzwa kuti ubate kusaenzana kupfeka.
- Pima dhiramu yakaboora IDine bore geji pazvinzvimbo zvinoenderana nekudzika.
- Verenga radial clearance:bvisa ndege OD kubva pakabore ID uye patsanura nembiri.
- Enzanisa nemufananidzo wekuvakauye nyora kuverenga kwega kwega nemusi uye maawa ekumhanya.
Dudzira mhinduro uchipikisa kubvumidzwa kwepakutanga, kwete kupikisa nhamba yepasi rose. Mutemo unobatsira wechitoro: kana clearance yakura kusvika zvakapetwa kaviri kukosha kwekuvaka, kana kana kubuda kwadonha zvinooneka panguva imwechete yekumhanyisa screw, tanga kuronga kutsiva. Yedu nhanho-ne-nhanho yekuyera gwara inovhara iyo nzira mune yakazara yakazara.
Kuchenesa Chirongwa uye Kuchenesa Musanganiswa Mhando
Batanidza komboni nebasa. Mechanical (abrasive-isina) inochenesa scrub ine high viscosity. Chemical purges inorwisa yakasvibiswa zvinhu uye kabhoni. Mafuro anonatsa anowedzera kusvika panzvimbo dzakafa idzo laminar inoyerera inopotsa.
Nguva dzakadzika-dzakachena dzinoenderana neresin. Yepamusoro-tembiricha mapolymer anovaka kabhoni nekukurumidza uye anoda kakawanda kucheneswa kwakadzika. Chero chipi chaunomhanya, chengeta nguva yacho pane hurongwa pane kumirira matema matema kuti akurongedze iwe.
Nguva Yokugadzirisa vs Nguva Yekutsiva
Enzanisa mutengo pagore rebasa, kwete iwo maviri ma tag emitengo. Kuvakazve kunodhura hafu yakawandisa asi kunodzosera chetatu chemakore ndiyo inodhura sarudzo mukuvanza.
Kugadzirisa kunonamira kurudyikana kupfeka kuri kuita dimensional uye zvine mwero, base simbi inonzwika, iyi ndiyo yekutanga kuvakazve, uye geometry ichiri kuenderana neresin yako.
Kutsiva kunorerekera kurudyikana ngura yadzika zvakadzika, kana sikuruu yatovakwazve, kana zvinhu zvako zvachinja uye iyo yekare geometry isingachakwane, kana iyo seti iri saizi yakajairika iyo mutengo wekutsiva unogara pedyo neyakagadziriswa quote.
Yedu yekugadzirisa vs yekutsiva gwara inoisa iyo yakazara sarudzo tafura.
Kuchengeta Kwakafanira uye Kubata kweSpare Screw Barrels
A spare set inobatsira chete kana yakatwasuka uye yakachena paunenge uchiida. Chengetedza screws zvakachinjika nerutsigiro pakureba, usambozendamira pamuromo. Zvipfekedze kubva kumarara, zvichengete zvakavharwa, uye chengeta pepa uye kuyerwa kuomarara manhamba nechikamu.
Iyo spare-set yekutenderera zanoyakakosha kudarika chero muripo wekukurumidza, uye anenge hapana mutengesi anokuudza izvi. Tenga chinotsiva pamberi pezvino seti yakundikana. Mhanya iyo itsva seti, tumira yekare kuti uvake patsva apo kugadzirwa kuchiri kuenderera, uye chengetedza iyo yakavakwa pasherufu seyakasara.
Wave muridzi weyekutenderera ine zero isina kurongeka nguva, uye kutsiva kwega kwega kweramangwana kunoitika pahurongwa hwako pachinzvimbo cha2 am neMugovera. Iro zano rinodhura seti imwe yemari yekushandisa uye inoripa kekutanga kuparara kusingaite.
Ndiyo Magadzirirwo Kana Muchina? Gedhi Rechisarudzo
Hechino chikamu chisina mukwikwidzi anonyora, uye chinokuchengetera nguva yakawanda kupfuura yese yegwaro iri rakasanganiswa.
Kana chirema chekuumba chikaonekwa, zvikwata zvakawanda zvinosvika kune marongero emuchina. Tembiricha, musana, kumhanya kwejekiseni, kubata nguva. Dzimwe nguva ndizvozvo. Asi kana iyo plasticizing unit yapfekwa, hapana kuseta kunodzosera maitiro, uye mavhiki anonyangarika mukutsvaga kwaisazombobudirira.
Mhanya gedhi iri usati wabata imwe nzvimbo.
1. Pane chakachinja here?New resin lot, new colorant, new regrind ratio, mold nyowani, kuseta mumwe munhu akagadziridzwa? Kana hongu, mhanyisa shanduko. Iri idambudziko rekuita kusvika zvaratidzwa neimwe nzira.
2. Hurema hwakangoerekana hwavapo here, kana kuti hwakapinda mumavhiki akawanda?Kamwe kamwe inonongedza pane shanduko kana chikamu chakatyoka. Zvishoma nezvishoma pfungwa pakupfeka. Kupfeka hakusviki nehusiku humwe.
3. Ko cushion inoramba ichipfurwa here?Mutsara usingaenderane ndiye cheki mhete ichitaura. Zviongorore pamberi pechimwe chinhu.
4. Kubuda kwadonha panguva imwecheteyo yekumhanyisa screw, kana kuti nguva yekudzoreredza yatambanudzwa?Ose ari maviri anonongedza pa clearance, zvichireva kuti screw kana barrel kupfeka. Settings haigone kudzoreredza yakarasika clearance.
5. Kunyungudika tembiricha kukwira panguva isina kuchinjwa setpoints?Iyo sikuruu iri kuwedzera kupisa kweshear, kazhinji nekuti iri kushanda nesimba kurwisa yasakara clearance.
6. Ko mavara matema anodzoka mushure mekuchenesa kwese?Zvinhu zviri kugara panzvimbo yakafa. Pane imwe yekare, nzvimbo yakafa inowanzopfekwa yemvumo inochengeta yakanyungudika yakanyungudika.
Mhinduro nhatu kana kupfuura "hongu" pamibvunzo 3 kusvika 6 zvinoreva kuti muchina uri kukuudza kuti plasticizing unit yakapfekwa. Rega kugadzirisa. Dhonza sikuruu woiyera.
Kuyera kunotora awa. Kudzingirira chikanganiso chemuchina kuburikidza nezvirongwa zvinotora mavhiki, uye hazvimbo chinjana, nekuti mhinduro haina kumbobvira yave mutongi.
Troubleshooting Guide pamwe Root-Chikonzero Tafura
Chikanganiso chega chega chiri pazasi chinogona kubva mukuita kana kubva kumakanika kupfeka. Tafura ine mazita escrew uye mbiyamudzi chikonzero, nekuti ndiyo hafu yevamwe vese vanosiya kunze.
| Dambudziko | Symptom | Screw / barrel mudzi chikonzero | Kugadzirisa chiito |
|---|---|---|---|
| Black streaks / mavanga ekutsva | Mavara akasviba kana mitsetse muchikamu; zvakaipisisa mushure mekumira | Zvinhu zvakasvibiswa zvakaiswa munzvimbo yakasakara kana nzvimbo yakafa; score bore; yakakuvara sikuruu pamusoro | Kuchenesa kwakadzika. Kana makwapa akadzoka, dhonza uye ongorora. Tarisa uone zvibodzwa uye kupfekwa kwemvumo. Dzorera kana seti iri kuchengeta zvinhu |
| Saizi yepfuti isingaenderane / mapfuti mapfupi | Shot uremu drifts; cushion inosiyana kupfurwa | Tarisa mhete isina kuvharwa(zvakawanda); ndege dzakasakara dzinorega kunyungudika dzichidonha shure; barrel yakabereka oversize | Tarisa mhete yekutanga. Wobva wayera kubvisirwa. Zvigadziro hazvigadzirise vharuvhu inodonha isiri kudzoka |
| Melt tembiricha spiking | Tembiricha yekunyungudika chaiyo pamusoro pemaseti; zvinhu zvinoshanduka | Kuveura kwakawandisa kubva kune zvisirizvo compression ratio; yakasakara clearance zvichiita kuti sikururu ishande nesimba; yakakukurwa thermocouple | Chengetedza thermocouples. Tarisa kasi screw uye kumashure kumanikidza. Kana geometry isiriyo kune resin, screw ndiyo inogadzirisa |
| Kunonoka kupora / refu plasticizing | Nguva yekudzorera inotambanudza; nguva yekutenderera inokura | Worn clearance inoderedza kupomba zvakanaka; nyaya yechikamu chekudya; geometry isiriyo yeresin | Tarisa kutonhora kwehuro uye pellet feed kutanga. Wobva wayera kubvisirwa pamufananidzo |
| Kukwira mota mutoro / kumashure kumanikidza | Motor amps kukwira pane zvinogara zvichibuda; torque alarm | Screw kudhonza mubore (misalignment, bent screw); kugera zvakanyanya; yakaderera zvinhu kuvaka kuramba | Tarisa kurongeka uye screw kutwasanuka. Siruuru yakabhenda inopfeka rimwe divi rechibore uye ichaparadza dhiramu idzva zvakare |
| Kushatiswa kwezvinhu / kushanduka | Yellow, splay, brittleness, kunhuwa | Nguva yekugara yakarebesa (yakapfurwa diki kune dhiramu); kugera kwakanyanyisa; makwapa akafa akabata zvinhu | Tarisa saizi yepfuti kusvika kubharel-capacity ratio. Deredza kugera. Pane kupisa-sensitive resins, yakaderera-kudzvanya screw inogona kunge iri iyo yega kugadzirisa chaiko |
| Unmelts / yakasimba zvimedu muchikamu | Zvimedu zvakaoma; lens-kufanana nekuremara; nzvimbo dzisina simba | Kusakwana kwekunyunguduka: L/D ipfupi, kudzvanya kwakashata, kubuda kunosundidzirwa kupfuura izvo screw inogona kunyunguduka, kana kupfekwa | Deredza zvinobuda kana kukwidziridza kuita barrier screw. Kana iyo seti yakapfekwa, hapana kuseta kunodzosera kunyungudika |
| Ruvara runotenderera / kusapararira zvakanaka | Uneven color; masterbatch kwete kupararira | Hapana chikamu chekusanganisa; screw yakasakara kusanganisa zvisina kunaka; siruuru isiriyo yekomboni yakazara kana ine ruvara | Rondedzera chikamu chinosanganisa (Maddock kana pini). Simbisa kuti screw haina kungosakara kutanga |
Black Streaks kana Burn Marks
Yakaderedzwa polymer iri kugara pane imwe nzvimbo uye ichityora muzvidimbu. Nzvimbo dzekuvanda dzakapfekwa dzakapfekwa, chibodzwa chakabowa, chindori checheki chakakanganisika, uye chero nzvimbo yakafa inoyerera.
Kuchenesa kwakadzika kutanga. Kana maspeks akadzoka mushure mekunyatsocheneswa, zvinhu zvacho hazvisi kungosara. Iri kugadzirwa nguva nenguva nenzvimbo mumushini wako, uye unofanirwa kudhonza screw woiwana.
Isingaenderani Kukura Kwepfuti kana Mapfuti Mapfupi
Tarisa mhete usati wabata marongero. Kana vharuvhu isingadzoke yamira kuvharika, inonyungudika ichipoya neshure panguva yejekiseni, uye pfuti yemuchina waifunga kuti yayera haisiriyo pfuti inogamuchira mold.
Chipo chekupa ndiye cushion. Nzira inowirirana inobata cushion yakadzikama. Kana cushion ichidzungaira ichipfurwa, kunyungudika kuri kuenda kumwe kwaisingafanirwe.
Melt Temperature Spiking kana Kunyanya Kukwidza
Pima iyo chaiyo yakanyunguduka neprobe pane kuvimba nemaseti. Kana kunyungudika chaiko kuchimhanya zvakanaka pamusoro penzvimbo, kupisa kwakawedzera kunobva kushear, kwete kubva kumabhandi.
Kupisa kweshear kunokwira kana kudzvanyirirwa kwanyanya kuita resin, kana screw speed yakanyanya, kana back pressure yakawandisa, uye kana screw yakasakara ichishanda nesimba kufambisa chinhu chimwe chete.
Slow Screw Recovery / Yakareba Plasticizing Nguva
Tanga pane hopper. Kuvharisa mapellets, huro yekudyisa yakawandisa, uye kusakwana kutonhora kutonhora zvese zvinouraya screw uye kutambanudza kupora, uye hapana kana chimwe chazvo chiri chirema.
Kana chikafu chine hutano uye kupora kuchiri kunonoka, pima kubviswa. Siruu yakarasa kugona kwayo kupomba kupfeka inotora nguva yakareba kuzadza pfuti imwechete, uye nguva yekutenderera inoiratidza.
Rising Motor Load kana Back Pressure
Kukwira maamps pakubuda nguva dzose zvinoreva kuti chimwe chinhu chiri kuramba. Iyo yakabhenda sikuruu inokweva mubore ndiyo ine ngozi kesi: inopfeka rimwe divi redhiramu, uye screw itsva yakaiswa pakatarisana nekusarongeka ikoko inopfeka nenzira imwechete pachirongwa chimwe chete.
Tarisa kutwasanuka uye kurongeka usati waraira chero chinhu. One-sided bore wear ndiyo fingerprint.
Material Degradation kana Discoloration
Zvikonzero zviviri zvinotonga: zvinhu zvinopisa zvakanyanya, kana kuti zvave kupisa kwenguva yakareba. Yechipiri ndiyo inopotsa vanhu.
Pfuti iyo idiki zvakanyanya kune dhiramu inonyungudika yakagara kuburikidza nekutenderera mushure mekutenderera, ichibika zvinyoro kusvika yatsvuka. Hapana screw design inogadzirisa pfuti yakaderera mudhiramu rakakura. Gadzirisa screw diameter, kana fambisa basa kumuchina mudiki.
Nzira yekuhodha Replacement Screw Barrel
Hapana mukwikwidzi anovhara izvi, uye ndicho chikamu chinodiwa nevatengi. Kunyangwe iwe uchihodha kubva kuOEM kana kubva kune yakazvimirirascrew barrel factory, ruzivo rwakafanana runofambisa quote.
Zviyero uye Zvinotsanangurwa Zvaunofanirwa Kupa
- Machine brand uye modhi.Iyo nameplate foto inokwana kuratidza kukwira uye dhiraivha-kuguma zviyero.
- Screw dhayamita uye L / D reshiyo,kubva pakudhirowa kana kuyerwa zvakananga.
- Iyo resin, ine filler content.Izvi zvinotyaira base simbi uye kurapwa kwepamusoro kupfuura chero chinhu chiri pane rondedzero.
- Shot size uye chinangwa chekutenderera,saka iyo geometry inogona kuvandudzwa pane kukopa.
- Dhirowa, kana sampuli yakasakara.Zvimwe zvinoshanda. Chikamu chakasakara chinogona kuyerwa uye iyo yakazara geometry inovakwazve.
- Chii chakakanganisika nguva yadarika.Tumira chimiro chekupfeka pamwe chete nechikamu. Smooth dimension loss inoti abrasion. Pitting vanoti corrosion. Kupfeka kwedivi rimwe kunoti alignment, iyo screw itsva isingagadzirise.
Chinhu chekupedzisira ndicho chinokanganwa vatengi, uye ndicho chinokumisa kutenga kopi yakatendeka yekutadza.
OEM-Match vs Tsika Dhizaini: Zvakanakira uye Zvakaipa
Mutambo weOEMinoburitsa iyo yekutanga geometry. Ndiko kufona chaiko kana iyo yepakutanga screw yakakodzera maitiro ako uye yakangosakara. Zvinofanotaurwa, zvinogoneka zvichipesana nedhirowa, hapana maitiro ekugadzirisa.
A tsika dhizainiinoshandura iyo geometry kuti ikwane izvo zvaunomhanya chaizvo nhasi. Ndiko kufona chaiko apo maitiro akafamba uye screw haina: iwe wakawedzera regrind, chinja kune giredhi rakazadzwa, wakachinja zvinobuda, kana iyo yekutanga screw haina kumbobata resin yako zvakanaka.
Kuraira mutambo weOEM kana maitiro achinja anoburitsa dambudziko musimbi nyowani. Kuraira dhizaini kana yepakutanga yaive yakanaka inowedzera mutengo uye kugadziridzwa pasina. Nzira yekupfeka inokuudza kuti uri mumamiriro api.
Chii Chaunofanira Kutarisira Kana Uchitsvaga kubva kuChina
Nguva yekutungamira inoenderana nejometri, kurapwa kwepamusoro, uye kana dhirowa iripo. Ikumbire nekunyora nekotesheni yako, uye bvunza kuti wachi inotangira pai: kusimbiswa kwedhirowa, kana kurongeka kwekutenga. Haasi zuva rimwe chetero, uye musiyano unowanzova vhiki.
Zvinhu zvitatu zvakakodzera kutsikirirwa usati waita:
- Kana kugadzirwa kunotanga.Reverse-engineering sampuli yakasakara inowedzera nguva chipu chimwe chisati chatemwa. Mufananidzo unobvisa danho iroro.
- Chii chinowedzera kurapwa kwepamusoro.Bimetallic pamusoro pepamusoro uye carbide spraying ndiwo matanho akapatsanurwa ane mutsara wavo.
- Kutakura zvinhu mugungwa, zvakasiyana.Haisi mukugadzira nguva yekugadzira, uye ndiyo nhamba inokatyamadza vatengi vekutanga.
Yedu pachedu yekutaura iri pachena nedhizaini: tinopa mutengo unofungidzirwa wekuvhara chigadzirwa, kutumira, uye kuenderera mberi kwekugadzirisa, saka hapana chekuzowana gare gare. Iwe unowana iyo quote mukati meawa gumi nemaviri.
Ronga kutenderedza nguva yekutungamira neiyo spare-set kutenderera yatsanangurwa pakutanga. Seti yakaodha kubva kune inopfeka log ngarava pane yako purogiramu. Seti yakarairwa kubva pakuparara kwengarava zvichipesana newachi, nemhepo, nemutengo hapana anofarira kutsanangura.
Hunhu hwekugamuchira Mamiriro uye Mapoinzi Ekuongorora
Aya ndiwo macheki anoparadzanisa mutengesi chaiye kubva kune yakachipa. Vabvunze nekunyora usati waisa odha, uye simbisa ivo kana seti yasvika:
- Kunze kwedhayamita pamapoinzi akawanda pamwe nendege imwe neimwe
- Bore dhayamita uye cylindricity
- Kuoma kwechiso seakuyerwa kukosha(HV kana HRC), kwete kutsanangurwa kwekabhuku
- Nitrided kesi kudzika, kana alloy layer kudzika pabimetallic bore
- Concentricity uye kutwasanuka
- Kushata kwepamusoro (Ra)
- Base simbi giredhi, yakasimbiswa
Kuoma uye kudzika kwenyaya ndizvo zviviri zvinonyanya kukosha, uye maviri anowanzo kuderedzwa chinyararire. Nitrided layer pa 950–1050 HV uye 0.5–0.8 mm kudzika ndiyo rondedzero yaunogona kubata mutengesi. "Nitrided" pachayo haisi.
Kana iyo quote ikadzika zvakanyanya pazasi pevamwe, bvunza kuti simbi chii uye kuti yakadzika sei kurapwa. Ndiko kunenge nguva dzose uko mutsauko unovanda, uye iwe unoudzorera mukupfeka kwekutanga.
Yedu yakazara sourcing yekufamba inogara mune yakasarudzika screw barrel odha gwara.
Unoda yekutsiva kana tsika jekiseni screw barrel? Tumira modhi yemuchina wako, kudhirowa, kana sampuli yakasakara. Isu tinodzokorora mukati maawa gumi nemaviri.
Tora Screw Barrel QuoteMibvunzo Inowanzo bvunzwa
Mubvunzo: Jekiseni rekuumba screw barrel rinogara kwenguva yakareba sei?
A: Pamasara asingaore akadai sePE nePP, majekiseni ejekiseni e38CrMoAlA ane nitrided anomhanya angangoita maawa gumi nemazana maviri kusvika makumi maviri. Girazi-yakazadzwa makomisheni, PVC, uye inorema regrind inocheka iyo pasi, uye kureba kunoenderana nekuzadza zvirimo uye zvinobuda. Usamhanye wachi uye tariro: kuyera. Tarisa ndege OD uye yakabereka ID inopesana nekudhirowa kwekuvaka kanokwana kamwe pagore pane abrasive basa, uye nyora maitiro. Maitiro, kwete nhamba yeawa, inokuudza nguva yekuraira seti inotevera.
Q: Ndechipi chakajairwa clearance pakati pe screw ne barrel?
A: Iko hakuna chimiro chimwe chete, nekuti kucheneswa zviyero zvine screw diameter. Mutemo weindastiri wegunwe weseti itsva inosvika 0.001 inch yeradial clearance padivi peinji yega yega yescrew diameter, saka 60 mm sikuruu inomhara pedyo ne0.06 mm padivi. Dhirowa yako yekuvaka ndiyo chiremera. Semuganho wesevhisi inoshanda, kana kuyerwa kubvumidzwa kwakura kusvika zvakapetwa kaviri kukosha kwekuvaka, kana kuburitsa kwadzikira zvinooneka panguva imwechete yekumhanyisa screw, ronga kutsiva.
Mubvunzo: Ndingashandisa screw imwe kune akawanda akasiyana resin?
A: Mumhuri, hongu. Iyo general-chinangwa screw inobata PE, PP, PS, uye ABS zvinogamuchirika, ndosaka vanogadzira muchina vachiitumira seyakajairwa. Mhuri dzese, kwete. Iyo GP screw paPVC yakaoma inosvibisa zvinhu uye inoparadza simbi. Siruu yeGP panaironi yakazadzwa negirazi inopera nekukurumidza. Uye sikururu yevhoriyamu imwe chete haigone kushanda basa rinoshandisa chikamu chidiki chebhodhoro pasina kubika zvinhu. Kana maresin ako akatambanudzira mapeji iwayo, unoda anopfuura screw imwe, kana screw yakagadzirirwa iyo yakaoma kesi.
Mubvunzo: Ndingaziva sei kana jekiseni rangu rekuumba screw rakapfekwa?
A: Muchina unokuudza kutanga, uye micrometer inozvisimbisa. Tarisa kubuda kunodonha panguva imwechete yekumhanyisa screw, kudzoreredza nguva kutambanudza, kunyunguduka tembiricha ichikwira panzvimbo isina kuchinjika, matema matema anodzoka mushure mekuchenesa, uye saizi yepfuti inodonha. Chero ipi zvayo inopembedza kudhonza screw. Wobva wayera kubhururuka kweOD ne micrometer uye bore ID ine bore geji, panzvimbo dzakafanana, uye enzanisa iyo radial clearance inopesana nedhirowa. Zviratidzo zvinoratidza; kuyerwa kunosimbisa.
Mubvunzo: Chii chinonzi bimetallic screw barrel uye ndinoida riini?
A: Bimetallic barrel inochengeta alloy-simbi muviri uye inosanganisa yakaoma kupfeka alloy mubore. Pamadhiramu edu tinopfapfaidza alloy yakaoma denderedzwa rakazara rakatenderedza nzvimbo yebore, zvichiunza kuoma kwemukati kusvika 62 HRC. Mutsetse wacho uri nyore kudhirowa:girazi fiber inosvika makumi matatu muzana inomhanya zvakanaka pane nitrided 38CrMoAlA set. Pamusoro pe30% girazi, ine mineral filler kana flame retardant, kana pane corrosive resin, enda bimetallic. Iyo nitrided kesi ndeye 0.5–0.8 mm diffusion layer, uye inorema yekuzadza inocheka nepakati payo kare simbi yepasi isati yapera.
Q: Ko screw dhizaini inokanganisa chikamu chemhando mukuumba jekiseni?
A: Zvakananga, uye kupfuura akawanda maitiro ekugadzirisa. Screw geometry inosarudza kuti zvinhu zvinonyungudika sei, kuti tembiricha yekunyunguduka yakafanana sei, kuti ruvara rwakanaka sei uye mazadza anopararira sei, uye kuti pfuti yacho inofanana sei. Unmelts, streaks, splay, degradation, uye kupfura mutsauko zvese zvinoteedzera kumashure kune screw dhizaini kana screw kupfeka kanenge nguva zhinji pavanenge vachitsvaga vachidzokera kune controller. Kana chirema chikaramba shanduko yega yega yaunoita, iyo geometry kana kupfeka kazhinji ndicho chikonzero.
Mubvunzo: Ndeupi musiyano uripo pakati pejekiseni screw uye extrusion screw?
A: An extrusion screw inotenderera ichienderera uye mapombi anonyunguduka kumberi pasina kumira. Iyo jekiseni screw inoita mabasa maviri: inotenderera kuita pfuti pfuti, yobva yamira kutenderera yotyaira kumberi kunge plunger kuibaya. Kuita kudzokororwa ndiko kusaka majekiseni ejekiseni achitakura cheki mhete kumuromo, uye nei achimhanya mapfupi L/D reshiyo, kazhinji 18:1 kusvika 25:1, pane extrusion screws. Material zvakare inogara mugomba rejekiseni pakati pepfuti, izvo zvinoita nguva yekugara uye kupfura saizi yakakosha.
Mubvunzo: Ko mugadziri we screw barrel anogona kukopa screw yangu pasina dhirowa?
A: Hongu. Tumira chikamu chakasakara uye geometry inogona kuyerwa nekuvakwa patsva: dhayamita, chimiro chechiyero, kudzika kwechiteshi, uye zviyero zvakaringana kumagumo ekutyaira. Tinobata masiruuru ejekiseni kusvika ±0.001 mm. Yambiro imwe chete inofanirwa kutaurwa: screw yakasakara inoyera idiki pane yayasiya fekitori, saka inotsiva inofanira kuvakwa kune yekutanga dhizaini chinangwa kwete kune yakasakara zviyero. Tumira iyo yekupfeka pateni pamwe nechikamu, uye screw nyowani inotsanangurwa ichipokana nekutadza pane kuitora.
Mhedziso
Mazano matatu anotakura gwara rese.
Kusarudzwa kunotevera resin.Geometry (L/D, compression ratio, screw type) inofanana nekunyungudika kwepolymer yako. Kurapwa kwepamusoro kunoenderana nekusviba kwakaita chikafu chako. Maresheni akachena anomhanya achifara pane nitrided 38CrMoAlA. Zvokudya zvinoparadza uye zvinoparadza zvinoda bimetallic bore, uye kutsanangura kesi yakachena ndiyo nzira inofarirwa neseti nyowani nekukurumidza.
Kuchengetedza kunotenga makore, uye data inotenga kuronga.Geza pamberi pekumira kwese, chenesa nendarira kwete simbi, uye meya kucheneswa pese apo sikuruu yabuda. Rogi yehembe inotendeuka kuti "yapfekwa here?" kupinda "richayambuka mutsara?", Ndiwo musiyano pakati pekuchinja kwakarongwa uye kuvhara.
Ongorora muchina usati wagadzirisa maitiro.Kana zvinobuda zvadonha, matenderedzwa akatambanudzwa, cushion inodzungaira, kana matinji anodzoka mushure mekuchenesa, iyo plasticizing unit iri kutaura. Zvirongwa hazvigone kudzoreredza yakarasika clearance kana kumisazve cheki mhete yakasakara. Dhonza sikuruu woiyera.
Nanhaiya akavaka screws nemadhiramu kweanopfuura makore makumi maviri uye anoshandira 500+ vatengi pasi rese. Majekiseni edu anogadzirwa kubva pa38CrMoAlA, anodzimwa nekudzikamiswa, obva aiswa gas-nitried pa 500–560 °C kusvika pa 0.5–0.8 mm kesi pa950–1050 HV, akabatwa kushivirira kwe±0.001 mm, uye akayerwa 0-00-00-0000-10 corsive, 000-000 corsive maawa gumi resin. Ipo chikafu chakanyanya kuomarara, tinopfapfaidza alloy yakasimba denderedzwa rakazara kutenderedza nzvimbo yebore uye totora kuoma kwemukati kusvika ku62 HRC.
Usati wahodha, mainjiniya edu anoshanda nemaparamendi newe: dhayamita, chimiro chechiyero, screw channel kudzika, uye sarudzo yezvinhu pakati pe38CrMoAlA uye duplex alloy. Iko kubvunzana ndeyemahara, uye quote inotevera inosanganisira chigadzirwa, kutumira, uye inotarisirwa mutengo wekugadzirisa, saka hapana chinozoonekwa gare gare icho chaive chisiri papeji.
Mushure mekusununguka, matekinoroji edu anotsigira kuisirwa uye kutumira, waranti inomhanya kune kondirakiti (kazhinji gore rimwe kusvika maviri), uye chero mushure mekutengesa nyaya inowana mhinduro mukati memaawa makumi maviri nemana uye mhinduro mukati memakumi mana nemasere.
Titumirei muchina wako modhi, resin, uye dambudziko rauri kuyedza kugadzirisa. Iwe uchave uine yakatarwa uye quote mukati maawa gumi nemaviri.
Tiudze muchina wako, resin yako, uye chii chakakanganisika nguva yadarika. Tichatsanangura seti inogadzirisa, kwete iyo inodzokorora.
Bata Nanhaiya kuti uwane Quote
