Niaj hnub no, ua raws Qingdao Sainuo ope waxmanufacturer to learn about common problems and solutions in PVC injection foaming shoe material molding. 

ope ciab rau PVC producr

1. Overflow flash
(1) Yog tias lub foob tuag tsis nruj, qhov tuag yuav tsum tau kho.
(2) Cov cua txias ceev yog qeeb heev. Kev ua kom txias txias yuav tsum tau txhim kho thiab qhov txias txias yuav tsum tau nce ntxiv. Nws yog qhov zoo tshaj kom dhau dej txias los ntawm cov pwm hauv qab, thiab cov nyhuv txias yog qhov zoo.
(3) Kev txhaj tshuaj ntau dhau thiab pub mis. Yuav tsum tau txo kom tsim nyog.
(4) Kev sib xyaw ua ke ntawm plasticizing lub sij hawm thiab kev txhaj tshuaj siab. Tom qab ntsuas kev sib raug zoo nkhaus ntawm lub siab thiab foaming lub sij hawm, tsim nyog kho qhov kev txhaj tshuaj siab thiab lub sij hawm foaming.
(5) Lub puab txheej phaj ntawm cov tuag yog warped thiab deformed. Lub vaj huam sib luag sab hauv yuav tsum tau kho lossis hloov.
(6) Tsis txaus clamping quab yuam vim roj to ntawm hydraulic system. Lub hydraulic system yuav tsum tau kho.
(7) Lub caij nplooj ntoos hlav ntawm tus pin tuag nuv yog xoob dhau. Lub caij nplooj ntoos hlav yuav tsum tau hloov kom qhov nro ntawm tus nuv.
(8) Lub sijhawm teeb tsa tsis txaus, thiab qhov chaw ntawm cov khoom tsis tau txias kom huv si. Thaum lub sij hawm thawj pwm qhib, cov khoom kub hauv nruab nrab tawg los ntawm qhov chaw thiab overflows. Thawj pwm qhib lub sij hawm yuav tsum raug ncua kom tsim nyog.
2. Muaj cov npuas loj
(1) Cov particle loj ntawm foaming tus neeg sawv cev yog ntxhib heev thiab dispersion tsis sib xws. Feem ntau, tus neeg sawv cev foaming yuav tsum tau sib tsoo los ntawm peb lub chais, tsim nyob rau hauv cov khoom ntim, sib tsoo los ntawm lub zeb rau 2 ~ 4 zaug, thiab tom qab ntawd siv tom qab sib tsoo.
(2) Thaum lub sij hawm kneading thiab granulation, qhov kub ua hauj lwm yog siab dhau lawm, tus neeg sawv cev foaming decomposes ntxov ntxov, thiab hais tias muaj foaming tshwm sim. Lub kneading thiab granulation kub yuav tsum raug txo kom zoo, thiab yuav tsum tsis muaj vesicles thaum lub extruded hais raug txiav.
(3) Lub sijhawm khaws cia ntawm cov khoom molten nyob rau hauv lub thoob yog ntev dhau lawm los yog cov txheej txheem kub siab heev. Ceev ceev pre molding yuav tsum tau saws. Lub plasticized yaj yuav tsum tau txhaj rau ib zaug, thiab ib lub tshuab ntau hom kev tsim khoom yuav tsum tau saws kom deb li deb tau.
(4) Lub nraub qaum ntawm cov ntsia hlau me dhau, thiab cov khoom siv molten yog rhuab thiab nthuav dav hauv lub thoob. Lub siab rov qab yuav tsum tau nce ntxiv kom tsis muaj lub caij nyoog ntawm kev nthuav dav ua ntej tom qab tus neeg sawv cev foaming muaj nyob rau hauv lub yaj yog decomposed los ntawm cua sov.
(5) Cov khoom xau ntawm qhov kawg ntawm lub thoob ua rau thaj tsam qis ntawm qhov kawg qhov hluav taws xob, uas ua rau muaj qhov nthuav dav ntawm cov khoom molten ntawm qhov hluav taws xob thiab tsim cov npuas. Lub qhov hluav taws xob kub yuav tsum raug txo kom raug. Nws yog qhov zoo tshaj plaws los txais yuav throttle valve qauv ntawm lub qhov hluav taws xob kom kaw qhov kawg qhov hluav taws xob.
(6) Cov khoom siv rov ua dua tshiab yog qhov tsis tsim nyog. Nws cov koob tshuaj yuav tsum raug txo kom tsim nyog.
3. Qhov sib piv ua npuas dej loj dhau
(1) Cov khoom siv tshuab ntau dhau yog pub, ua rau muaj roj ntau dhau. Cov roj tso tawm yuav tsum ntsuas thiab kev pub mis yuav tsum raug.
(2) Cov yas yas yog ntau dhau thiab yuav tsum tau txo kom tsim nyog.
(3) Yog tias pwm rub qhov kub siab dhau, cov pwm yuav tsum txias thiab rub tawm.
(4) Lub sijhawm tuav lub sijhawm luv dhau. Nws yuav tsum tau ua kom paub tseeb tias cov khoom yog zoo li tus thiab ces tawm ntawm pwm.
4. Tsis txaus foaming ratio
(1) Tus nqi ntawm cov tshuab tshuab yog me me, ua rau cov roj tsim tsis txaus. Cov roj tso tawm yuav tsum ntsuas thiab kev pub mis yuav tsum raug.
(2) Tus nqi ntawm plasticizer tsawg dhau. Qhov pub mis yuav tsum tau nce kom tsim nyog.
(3) Thaum cov khoom ua tiav rau lub sijhawm thib ob, lub sijhawm nthuav dav thib ob luv dhau. Lub sijhawm ua npuas ncauj thaum lub sijhawm ua haujlwm yuav tsum raug ncua kom tsim nyog, thiab lub sijhawm nruab nrab ntawm thawj thiab thib ob foaming yuav tsum tsis pub tshaj 12 teev.
(4) Thaum muaj cov xim pleev xim rau ntawm qhov chaw ntawm cov khoom, nws qhia tau hais tias qhov nthuav thiab foaming ntawm thawj pwm qhib yog qeeb heev. Thawj pwm qhib lub sij hawm yuav tsum tau luv luv.
(5) Thaum muaj cov npuas me me rau ntawm qhov chaw ntawm cov khoom, nws qhia tau hais tias qhov kev txhaj tshuaj kub tsawg dhau. Kev txhaj tshuaj kub yuav tsum tau nce kom tsim nyog. Txawm li cas los xij, yog tias qhov foaming tseem tsis tshwm sim tom qab molding kub nce, thawj pwm qhib lub sij hawm yuav tsum tau luv luv ntxiv.
5. Qhov tsis sib xws aperture
(1) Qhov loj me me ntawm tus neeg sawv cev foaming tsis sib xws thiab cov dispersion tsis zoo. Cov foaming tus neeg sawv cev yuav tsum tau siv tom qab sib tsoo.
(2) Kev txhaj tshuaj tsawg dhau lossis kev txhaj tshuaj qeeb dhau yuav ua rau cov yaj tuaj yeem nthuav dav thaum lub sijhawm pwm txhaws thiab ua npuas ntawm ntau qhov sib txawv. Kev txhaj tshuaj nrawm yuav tsum tau nrawm nrawm thiab kev txhaj tshuaj yuav tsum tau nce ntxiv.
(3) Cov txheej txheem kub yog siab dhau. Nws yuav tsum raug txo kom tsim nyog.
(4) Muaj ntau cov khoom khaws cia hauv lub thoob. Thawj qhov kev ntsuam xyuas yuav tsum tau ua kom txo tau qhov chaw cia.
(5) Tsis txaus ntsia hlau rov qab siab. Nws yuav tsum tau kho kom zoo.
6. Kev nyuaj siab
(1) Cov khoom yog nyias heev, thiab cov yaj yog raug rau cov dej ntws loj thaum lub sij hawm pwm filling, ua rau tsis tshua muaj siab thiab tsis txaus pwm filling hauv qee qhov chaw. Cov khoom thickness yuav tsum tsim tsim nyog. Feem ntau, lub thickness ntawm unfoamed yuav tsum yog ntau tshaj 6 hli, thiab lub thickness yuav tsum zoo li uniform li sai tau.
(2) Cov cua txias tsis sib npaug, thiab qee qhov yog txias ceev heev, ua rau foaming nyuaj. Cov khoom yuav tsum tau txias kom sib npaug, thiab qhov txias txias ntawm qhov tuag yuav tsum tau teeb tsa kom tsim nyog raws li lub cev yam ntxwv ntawm cov khoom.

7. Rooj vag kev nyuaj siab
(1) Lub rooj vag ntu loj dhau. Nws yuav tsum raug txo kom tsim nyog.
(2) Lub sijhawm tuav yog luv dhau thiab qhov kev tshem tawm tuag sai dhau. Lub sij hawm tuav lub zog yuav tsum ncua kom tsim nyog.
(3) Cov txheej txheem kub yog siab dhau lossis qis dhau. Nws yuav tsum tau kho kom haum.
(4) Lub tshuab hydraulic ntawm lub tshuab molding yog faulty thiab kev txhaj tshuaj siab tsis txaus. Lub kaw lus hydraulic yuav tsum tau kho kom muaj zog txhaj tshuaj.
8. Cov ntaub ntawv ntws
(1) Qhov kub ntawm qhov sib txawv yog qhov tsawg dhau los yog qhov sib txawv ntawm qhov kub ntawm txhua qhov cua sov yog qhov loj heev. Cov txheej txheem kub yuav tsum tau nce kom zoo thiab cov cua kub ntawm txhua qhov yuav tsum tau kho.
(2) Kev txhaj tshuaj nrawm dhau lawm. Nws yuav tsum tau ceev kom tsim nyog.
(3) Cov khoom siv tsis txaus. Qhov pub mis yuav tsum tau nce kom tsim nyog.
9. Cov gloss tsis zoo
(1) Cov resin viscosity siab dhau lawm thiab cov yas nqus dej tsis sib xws. Resin yuav tsum raug xaiv kom tsim nyog.
(2) Npuas shrinkage cov ntaub ntawv tsis sib xws pitted nto. Qhov laj thawj ntawm bullae yuav raug pom thiab qhov txhaum bullae yuav raug tshem tawm.
(3) Lub molding tuag kub yog tsawg dhau. Qhov kub molding yuav tsum tau nce kom tsim nyog.
(4) Tsis zoo nto tiav los yog corrosion ntawm pwm kab noj hniav. Qhov saum npoo ntawm qhov tuag yuav tsum tau txhim kho.
(5) Muaj cov seem ntawm cov pwm kab noj hniav. Cov kab noj hniav pwm yuav tsum tau ntxuav.
(6) Raws li tus neeg sawv cev foaming nyob rau saum npoo ntawm cov khoom molten decomposes thiab foams thaum lub sij hawm pwm filling, qee cov npuas raug torn thaum lub sij hawm ntws, tsim cov xim zoo li cov qauv, cuam tshuam rau qhov gloss ntawm cov khoom. Hauv qhov no, cov txheej txheem pabcuam xws li tshuaj tsuag xim thiab polishing tuaj yeem siv los txhim kho lub ntsej muag gloss.
10. Cov xim tsis sib xws
(1) Cov xim tsis raug hnyav. Nws yuav tsum raug ntsuas kom raug.
(2) Cov xim tsis sib xws. Cov xim yuav tsum yog av thiab nias nrog ib tug grinder.
(3) Qhov zoo ntawm cov xim tsis zoo, xim hloov tau, thiab nws lub zog xim tsis muaj zog. Cov xim uas muaj xim zoo nkauj yuav tsum raug xaiv.
(4) Lub hauv paus plasticizing kub yog siab dhau, ua rau tsis muaj xim. Txheeb xyuas qhov cua sov thiab txo qhov kub hauv zos.
(5) Muaj cov xim pleev xim rau ntawm qhov chaw los tsim cov xim sib txawv. Thawj pwm qhib lub sij hawm yuav tsum tau luv luv.
11. Raw khoom
(1) molding kub tsis txaus thiab tsis zoo plasticization. Cov cua sov yuav tsum tau kuaj xyuas kom ua kom qhov kub thiab txias.
(2) Kev tsim cov khoom siv raw yog tsis tsim nyog. Cov mis yuav tsum tau kho.
12. Layering
(1) Cov neeg ua npuas ncauj ntau dhau. Yuav tsum tau txo kom tsim nyog.
(2) molding kub yog siab dhau. Nws yuav tsum raug txo kom tsim nyog.
(3) Lub sijhawm teem sijhawm luv dhau. Lub sijhawm txias thiab teeb tsa yuav tsum tau txuas ntxiv kom tsim nyog.

13. Deformation
(1) Lub foaming ratio ntawm lub hauv qab nto thiab saum npoo ntawm cov khoom yog inconsistent los yog lub zos foaming ratio yog siab dhau. Lub tshav kub hloov ntawm cov pwm yuav tsum tau kuaj xyuas. Lub thickness piv ntawm pwm yuav tsum tsim nyog thiab qhov kub thiab txias yuav tsum yog uniform.
(2) Lub sijhawm txias thiab teeb tsa lub sijhawm luv dhau. Lub sijhawm txias thiab teeb tsa yuav tsum tau txuas ntxiv kom tsim nyog.
(3) Cov kev ntxhov siab faib rau hauv cov txheej txheem condensation ntawm cov khoom tsis sib xws. Txheeb xyuas qhov kub ntawm cov pwm thiab kho qhov kev ntxhov siab ntawm cov khoom siv molten.
(4) Kev tswj tsis raug ntawm lub sijhawm pwm tawm, lossis pwm tawm ntxov dhau, overheating pwm paug; Los yog pwm lig dhau lawm thiab pwm txias dhau lawm. Lub sij hawm tuag tawm yuav tsum tswj kom tsim nyog.
14. Dimensional instability
(1) Foam txwv tswj yog txawv. Ua npuas ncauj txwv yuav tsum nruj me ntsis tswj.
(2) Nyob rau hauv ib lub batch thiab ib qho pwm ntau lawm, los yog kev tswj ntawm kev tsim kub thiab lub sij hawm zoo sib txawv. Qhov sib xws ntawm cov txheej txheem yuav tsum tau tswj xyuas nruj me ntsis, thawj txoj kev kuaj xyuas tus qauv tuaj yeem siv los txhim kho qhov sib xws ntawm cov khoom.
(3) Cov pwm yuam kev tshaj qhov yuam kev ntawm foaming piv. Cov tuag yuav tsum tau txiav kom txo qhov tuag yuam kev.
(4) Tsis sib xws pwm filling lossis pwm deformation rau lub sijhawm ntev. Cov txheej txheem loj ntawm pwm qhov rooj kaw lus yuav tsum raug kho, thiab cov pwm yuav tsum raug txiav kom txo qhov yuam kev.
(5) Tuag tuag. Cov pwm yuav tsum tau trimmed.
(6) Cov khoom cua txias tsis sib xws. Cov pwm cua sov thiab cua txias yuav tsum raug kuaj xyuas kom ntseeg tau tias cov pwm saum npoo kub tsis sib xws.
(7) Tsis txaus clamping quab yuam. Qhov nro ntawm qhov rub nuv lub caij nplooj ntoos hlav yuav tsum tau kho kom tsim nyog ua kom lub zog clamping.
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