txheej txheem ntawm butyl roj hmab stopper

Tag nrho cov txheej txheem tsim khoom ntawm butyl roj hmab stoppers feem ntau suav nrog tsib ntu: kev sib xyaw ntawm cov khoom siv raw, ntawv, vulcanization, ntug xuas nrig ntaus thiab tu. Ntawm lawv, kev sib xyaw, vulcanization thiab ntxuav cov ntaub ntawv roj hmab yog qhov tseem ceeb tshaj plaws hauv kev tsim khoom tag nrho. Kev tswj xyuas zoo ntawm peb cov txheej txheem no txiav txim siab qhov zoo ntawm cov khoom siv roj hmab stopper.

Hauv cov txheej txheem sib xyaw roj hmab, cov khoom siv roj hmab siab, cov khoom tsim nyog thiab cov txheej txheem nruj yuav tsum raug xaiv. Yog tias butyl roj hmab stopper tuam txhab uas muag xaiv cov khoom siv roj hmab qis los yog sib xyaw hauv cov roj hmab uas tsis tshua muaj nqi zoo tib yam txhawm rau txo cov nqi tsim khoom, nws yuav ua rau muaj teeb meem xws li txo qhov kev tawm tsam ntawm cov roj hmab tiav, yog li cuam tshuam rau nws cov kev sib raug zoo nrog cov tshuaj.

Kev ua haujlwm ntawm vulcanization yog ua kom cov roj hmab elastic thiab txhim kho cov khoom ntawm cov roj hmab xws li nplaum ntawm qhov kub thiab txias thiab tawv thiab nkig ntawm qhov kub thiab txias. Cov txheej txheem no yuav tsum xaiv qhov tsim nyog vulcanization system (xws li tus neeg sawv cev vulcanizing, vulcanizing accelerator, activator, antioxidant, thiab lwm yam) raws li kev ua haujlwm ntawm cov roj hmab. Tsis tas li ntawd, qhov tsim nyog qhov chaw ntawm peb lub ntsiab ntawm vulcanization siab, vulcanization kub thiab vulcanization lub sij hawm kuj tseem ceeb heev. Cov teeb meem uas yuav tshwm sim hauv cov txheej txheem vulcanization muaj xws li under-vulcanization, over-vulcanization thiab tsis muaj kua nplaum. Nyob rau hauv-vulcanization yuav ua rau cov khoom tsis tshua muaj hardness, yooj yim rau deform, thiab nplaum. Tshaj-vulcanization yuav ua rau cov khoom lag luam nyuaj dhau, ua rau muaj kev laus, ntug tawg, thiab lwm yam. Nyob rau hauv-vulcanization thiab over-vulcanization yuav cuam tshuam rau kev sib raug zoo ntawm cov roj hmab stoppers thiab tshuaj. Tsis muaj kua nplaum txhais tau hais tias cov duab ntawm cov khoom siv roj hmab stopper tsis tiav. Kev siv cov roj hmab stoppers uas tsis muaj cov kua nplaum rau cov tshuaj yuav ua rau cov cua nruj ntawm cov tshuaj. Kev siv cov roj hmab stoppers tsis muaj kua nplaum yuav tsum tau zam hauv kev tsim tshuaj.

Cov txheej txheem ntxuav muaj xws li ntxuav thiab siliconization. Lub luag haujlwm ntawm kev ntxuav yog tshem tawm cov kab mob ntawm qhov chaw ntawm cov roj hmab stopper thiab tshem tawm cov khoom tsiv teb tsaws hauv cov roj hmab stopper. Cov txheej txheem no yuav tsum xyuas kom meej qhov huv ntawm cov dej ntxuav, thiab nruj me ntsis tswj qhov kub thiab txias lub sij hawm ntawm cov dej ntxuav. Lub sijhawm ntxuav thiab dej kub yuav cuam tshuam rau cov dej noo seem ntawm cov roj hmab stopper. Silicification yog hais txog txheej txheej silicone rau saum npoo ntawm cov roj hmab stopper. Lub luag haujlwm yog txhawm rau txhim kho lubricity ntawm cov roj hmab stopper thiab txo cov khoom ua los ntawm cov roj hmab stopper tev tawm ntawm nws tus kheej vim kev sib txhuam. Siliconization tsis txaus yuav ua rau muaj teeb meem hauv kev nias lub ntsaws thiab lub zog tsis zoo ntawm lub tshuab. Siliconization ntau dhau yuav ua rau ntsaws dhia thiab ntsaws hauv lub tshuab. Tsis tas li ntawd, cov roj silicone ntau dhau yuav cuam tshuam rau cov tsos mob ntawm cov tshuaj. Tshwj xeeb tshaj yog tom qab cov tshuaj yog sterilized nyob rau hauv high kub, cov roj hmab stopper yuav tso ib tug loj tus naj npawb ntawm silicone roj hais mus rau hauv cov tshuaj tov, uas ua rau ib tug nce nyob rau hauv insoluble hais. Yog tias cov roj silicone tso rau hauv lub raj mis phab ntsa, "dai hlaws" yuav tshwm sim. "Qhov tshwm sim; cov roj silicone ntau dhau kuj tseem tuaj yeem nqus cov hmoov tshuaj thiab tsim cov hmoov tshuaj agglomerates. Vim tias cov roj silicone yog insoluble hauv dej, nws yuav dhau los ua turbid thaum raug dej thiab cov hmoov tshuaj yuav insoluble, uas yuav cuam tshuam rau kev ua tau zoo ntawm cov tshuaj.