"Dub streaks," tseem hu ua "dub kab," hais txog cov xim dub streaks lossis kab uas tshwm rau saum npoo ntawm cov khoom yas.Qhov laj thawj tseem ceeb ntawm cov streaks dub yog thermal degradation ntawm cov khoom molding, uas feem ntau muaj nyob rau hauv cov yas uas tsis zoo thermal stability, xws li PVC thiab POM.
Cov kev ntsuas zoo los tiv thaiv qhov tshwm sim ntawm cov streaks dub suav nrog kev tiv thaiv qhov kub thiab txias hauv lub thoob los ntawm kev kub siab dhau thiab txo qhov kev txhaj tshuaj ceev.Yog tias muaj qhov caws pliav lossis qhov khoob hauv lub thoob los yog cov ntsia hlau, cov khoom siv los ntawm cov khoom no tuaj yeem ua kom sov, ua rau thermal degradation.Tsis tas li ntawd, cov kab nrib pleb hauv lub nplhaib tuaj yeem ua rau cov thermal degradation vim yog yaj tuav, yog li nws yog ib qho tseem ceeb kom ceev faj thaum ua hauj lwm nrog high-viscosity los yog yooj yim degradable plastics.
Yog vim li cas rau qhov tshwm sim ntawm cov dub streaks feem ntau muaj feem xyuam rau tej yam xws li cov melting kub yog siab dhau heev lawm, cov ntsia hlau ceev ceev heev, siab rov qab siab, eccentricity ntawm cov ntsia hlau thiab lub thoob ua rau muaj kev sib txhuam kub, tsis txaus los yog siab kub ntawm lub nozzle. orifice, instability los yog tsis zoo dispersion ntawm colorant, residual yaj sticking nyob rau hauv lub nozzle lub taub hau, cov chaw tuag nyob rau hauv lub nplhaib / chim ua rau overheating ntawm cov khoom, paug nyob rau hauv lub recycled khoom nyob rau hauv lub feed caj pas, ib tug dhau-small txhaj chaw nres nkoj, hlau blockages. nyob rau hauv lub nozzle, thiab ntau cov khoom seem uas ua rau lub sij hawm ntev yaj nyob.
Txhawm rau txhim kho qhov teeb meem ntawm cov streaks dub, cov kev ntsuas hauv qab no tuaj yeem ua tau: txo qis lub chim / lub taub hau kub, txo cov ntsia hlau ceev los yog rov qab siab, ua lub tshuab tu lossis hloov lub tshuab yog tias tsim nyog, tsim nyog nce lub taub hau taub hau lossis txo nws qhov kub, hloov. los yog ntxiv cov diffusers, ntxuav cov khoom seem ntawm lub taub hau lub taub hau, tshuaj xyuas cov ntsia hlau, kos lub nplhaib, lossis lub thoob rau hnav, kuaj lossis hloov cov khoom noj hauv caj pas, kho qhov chaw txhaj tshuaj, lossis tshem tawm cov khoom txawv teb chaws los ntawm lub nozzle, thiab txo cov nqi ntawm residual cov ntaub ntawv kom luv lub sij hawm yaj nyob.
Qhov chaw: Ningbo Chenshen Plastic Industry, Yuyao, Zhejiang Province, Suav
Hnub tim: 27/09/2023
Post lub sij hawm: Oct-30-2023