PTFE daim kab xev Blistering ua rau nyob rau hauv qhov kub thiab txias

Raws li cov chaw tsim khoom ntawm PTFE high-temperature daim kab xev, Jiangsu Aokai Cov Khoom Tshiab  cov kws tshaj lij tshuaj xyuas yog vim li cas PTFE high-temperature daim kab xev hlwv nyob rau hauv lub sij hawm ntev siab ntawm 180 ℃ thaum thov rau anti-stick kev kho mob ntawm kub daim hlau ntawm roj hmab vulcanizing presses. Qhov kev tsis zoo no yog sib koom ua ke los ntawm kev ua haujlwm ntawm cov khoom siv, cov txheej txheem thov thiab cov khoom siv. Kev nkag siab tob txog qhov tsis ua haujlwm ntawm PTFE daim kab xev ntsuas kub yog qhov tseem ceeb los daws qhov teeb meem.

I. Khoom Defects: Lub hauv paus ua rau Blistering

PTFE high-temperature daim kab xev muaj lub hauv paus ntaub thiab nplaum. Txhua qhov kev ua haujlwm tsis zoo ntawm ob txheej yuav raug nthuav tawm nyob rau hauv qhov kub thiab txias ua haujlwm siab.

1. Tsis txaus kub tsis kam ntawm cov nplaum - yog thawj qhov ua rau blistering
Txawm hais tias PTFE puag ntaub nta zoo heev-kub tsis kam, kev xaiv cov nplaum tsis zoo yuav ua rau tsis ua tiav. Txhawm rau txiav cov nqi, qee qhov qis PTFE daim kab xev txais yuav cov nplaum acrylic zoo tib yam nrog qhov kub tsis kam ntawm tsuas yog 120 ℃. Cov nplaum zoo li no yuav soften thiab decompose sai ntawm 180 ℃, tsim roj thiab nws thiaj li ua rau blistering thiab bulging.

Txawm hais tias PTFE tapes coated nrog silicone siab-rhiab nplaum nplaum, cov kua nplaum tsis zoo lossis kev kho tsis tiav (lub sijhawm kho tsis txaus thiab qhov kub thiab txias) yuav ua rau muaj kev cuam tshuam loj ntawm kev sib koom ua ke nyob rau hauv lub sij hawm ntev siab ntawm 180 ℃, ntxiv ua rau blistering lossis debonding.

1. Composite defects ntawm lub hauv paus ntaub thiab nplaum - inherent zais txaus ntshai

Nyob rau hauv cov txheej txheem ntau lawm, kev kho deg tsis txaus ntawm PTFE puag ntaub thiab cov txheej txheem txheej txheem tswj tsis zoo yuav ua rau qhov sib txawv ntawm cov khoom siv hauv paus thiab cov nplaum. Nyob rau hauv 180 ℃ siab siab, kev ntxhov siab accumulates ntawm cov chaw puas thiab induces blistering.

Tsis tas li ntawd, cov roj stains, plua plav thiab lwm yam kab mob ntawm lub phaj kub ua ntej pasting yuav ua rau kom cov adhesion ntawm cov nplaum, ua rau blistering tom qab cua sov thiab compression.

1. Internal volatile tshuaj nyob rau hauv daim kab xev — latent txaus ntshai yam

Cov kuab tshuaj residual, low-molecular plasticizers thiab lwm yam volatile tshuaj nyob rau hauv daim kab xev mis yuav vaporize sharply thiab nthuav nyob rau hauv ntim ntawm 180 ℃, jacking li cov nplaum txheej thiab tsim cov hlwv ntom.

Ntxiv mus, yog tias daim kab xev raug tsim los yog khaws cia rau hauv qhov chaw muaj av noo, absorbed noo noo yuav vaporize hnyav ntawm qhov kub thiab txias, uas yog ib qho tseem ceeb tsis tau yooj yim overlooked yam ua rau blistering.

II. Cov txheej txheem ua haujlwm tsis raug ua rau muaj qhov tsis zoo

1. Tsis yog-tus qauv pasting ua haujlwm ncaj qha induces blistering

Yog tias daim kab xev tsis sib npaug thiab muab tso rau ntawm ib kawg mus rau lwm qhov kom tso pa tawm, cov pa npuas seem yuav nthuav dav nyob rau hauv qhov kub thiab txias ntawm vulcanization, ua kom pom tseeb bulges.

Tsis sib xws thaum lub sij hawm pasting thiab tshem tawm qhov chaw tsis haum yuav dhau los ua blistering pib cov ntsiab lus.

2. Kev tu tsis zoo ntawm qhov chaw tsis muaj zog ua rau kev sib khi ua haujlwm

Cov phaj kub tsis qhuav los yog cov roj seem, tso tawm tus neeg sawv cev thiab lwm yam kab mob ntawm qhov chaw tiv thaiv tag nrho adhesion ntawm daim kab xev. Cov chaw sib txuas tsis muaj zog yog khi rau blister nyob rau hauv qhov kub thiab txias.

3.Unreasonable vulcanization tsis nce kev pab cuam load

Qhov tseeb ua haujlwm kub siab tshaj 180 ℃ lossis ntau qhov sib txawv hauv cheeb tsam kub ntawm cov hlau kub yuav dhau qhov ntsuas kub tsis kam ntawm cov nplaum thiab ua kom cov degradation thiab blistering.

Tsis txaus nias quab yuam los yog ncua sij hawm pressurization tsis tuaj yeem txwv cov tiam thiab nthuav dav ntawm huab cua npuas.

Nyob rau hauv qhov tseeb, blistering ntawm PTFE high-temperature daim kab xev qhia txog kev ruaj ntseg thiab daim ntawv thov kev ntseeg siab ntawm cov ntaub ntawv nyob rau hauv huab ua hauj lwm tej yam kev mob ntawm 180 ℃ mus sij hawm ntev kev kub siab. Qhov teeb meem tuaj yeem daws tau tag nrho los ntawm kev xaiv cov khoom tsim nyog, cov txheej txheem pasting kev ua haujlwm thiab kev tswj xyuas kev ua haujlwm ruaj khov.

Cov ntsiab lus saum toj no yog muab los ntawm Jiangsu Aokai New Materials Technology Co., Ltd.

Yog hais tias koj xav tau cov ntaub ntawv ntxiv ntawm cov khoom tsis, daim ntawv thov scenarios thiab customized kev daws teeb meem rau peb cov khoom tag nrho xws li PTFE high-temperature fabrics, PTFE high-temperature tapes, PTFE high-temperature mesh bets, seamless bonding machine belts, single-sided PTFE coated fabrics, high-temperature resistant fiberglass conveyor siv:

·  Mr. Guo: +86 18944819998

·  Mr. Liu: +86 13705266308

Peb ib txwm ua raws li cov kev pabcuam lub tswv yim ntawm kev tshaj lij thiab kev ncaj ncees, thiab tag nrho lub siab dawb paug muab kev daws teeb meem rau koj ib leeg thiab xav txog kev pabcuam tomqab muag.