1. Cov txheej txheem yooj yim ntws
Muaj ntau ntau hom roj hmab khoom, tab sis cov txheej txheem ntau lawm yog ib qho zoo ib yam. Cov txheej txheem yooj yim ntawm cov khoom lag luam roj hmab nrog cov roj hmab raw roj hmab-raw roj hmab muaj cov txheej txheem yooj yim: yas, ua kom haum, moulding thiab vulcanization. Ntawm chav kawm, cov txheej txheem yooj yim xws li cov khoom siv raw, tiav cov khoom tiav, tshuaj xyuas thiab ntim kuj tseem ceeb. Kev siv cov tshuab ntawm cov roj hmab yog feem ntau los daws cov kev tsis sib haum ntawm cov khoom siv hloov tshiab thiab elastic khoom. Los ntawm ntau cov kev siv thev naus laus zis, thiab cov roj hmab qhuav tas los ua cov khoom lag luam yas, thiab tom qab ntawd cov khoom siv yas ua ke thiab cov khoom siv tshuab ua kom zoo nkauj.
2. Cov Khoom Siv Khoom Raw
Cov khoom siv raw ntawm cov khoom lag luam yog cov roj hmab raw ua cov khoom siv roj hmab, thiab cov roj hmab nyoos txiav cov tawv ntoo ntawm cov roj hmab ntoo uas cog rau hauv lub chaw dav dav thiab subtropics.
Muaj ntau cov neeg sawv cev sib xyaw yog cov ntaub ntawv sib txuas ntxiv los txhim kho qee cov khoom ntawm cov khoom lag luam roj hmab.
Cov ntaub ntawv fiber ntau (paj rwb, ntaub plaub, cov ntaub ntawv hluav taws xob thiab cov xov hlau, cov xov hlau, hlau xaim) tau siv cov khoom siv roj hmab kom txhim kho cov tshuab zog thiab tsis muaj zog khoom deformation. Nyob rau hauv cov txheej txheem ntawm raw khoom npaj, cov khoom xyaw yuav tsum tau hnyav raws li cov mis. Txhawm rau kom muaj roj hmab nyoos thiab cov neeg sawv cev sib xyaw ua ke los ua homogeneously sib xyaw, cov khoom yuav tsum tau ua tiav. Cov roj hmab nyoos yuav tsum softened nyob rau hauv ib chav qhuav ntawm 60-70 ℃, thiab tom qab ntawd txiav thiab tawg ua tej daim me me. Tus neeg sawv cev sib xyaw ua ke yog lumpy. Xws li paraffin, stearic acid, rosin, thiab lwm yam yuav tsum tau tsoo. Yog tias cov hmoov muaj cov tshuab immeries lossis coarse hais, nws yuav tsum tau tshuaj xyuas kom tshem tawm cov kua tar thiab coumarone, melted, yaj, thiab lim. Kev tsim npuas npuas thaum muaj kev sib raug zoo ua kom muaj kev sib cav ua rau cov khoom lag luam zoo.
3. Yas
Roj hmab nyoos yog ywj thiab tsis muaj cov ntshiab kom tsim nyog rau kev ua, yog li nws tsis yooj yim rau cov txheej txheem. Txhawm rau txhim kho nws cov plasterity, nws yog qhov tsim nyog rau cov roj hmab raw yooj yim thiab nkag rau hauv cov roj hmab nyoos ntawm cov roj hmab thiab nkag mus rau hauv cov roj hmab fiber ntau thaum lub sijhawm calendering thiab sib sau ua ke. thiab moulding fluidity. Cov txheej txheem ntawm kev tawm tsam ntev-saw lwg me ntawm cov roj hmab nyoos rau tsim cov yas yog hu ua mastication. Muaj ob txoj hauv kev ntawm cov roj hmab raw raw: cov tshuab tshuab tov thiab thermal yas. Cov txheej txheem tshuab ntsuas yog cov txheej txheem ntev-ntev ntawm cov roj hmab ntev yog degrittened thiab shortened los ntawm ib lub ntsiab lus yas los ntawm kev sib txhuam ntawm cov yas ua kom tawg thiab txias. Kub yas yog kom dhau kub compressed huab cua rau hauv cov roj hmab nyoos hauv qab kev ua ntawm cov cua sov thiab oxygen rau kev sib tw ntev ntev thiab luv lawv kom tau txais cov yas.
4.Mixixing
Txhawm rau hloov kho rau ntau yam kev cai siv, tau txais ntau yam khoom, thiab txhawm rau txhim kho cov khoom siv roj hmab thiab txo cov nqi sib xyaw yuav tsum tau ntxiv rau cov roj hmab nyoos. Kev sib xyaw ua ke yog cov txheej txheem uas cov roj hmab raw sib xyaw nrog cov tshuaj tiv thaiv cov roj hmab los ntawm kev sib xyaw ua ke hauv cov roj hmab sib xyaw ua ke. Kev sib xyaw yog cov txheej txheem tseem ceeb hauv cov txheej txheem ntau lawm ntawm cov khoom siv roj hmab. Yog tias kev sib xyaw tsis zoo, muaj txiaj ntsig ntawm cov roj hmab thiab cov neeg sawv cev sib sau ua tsis tuaj yeem ua tiav, uas cuam tshuam rau kev ua haujlwm ntawm cov khoom. Cov roj hmab khoom tau txais tom qab sib tov yog hu ua cov roj hmab sib xyaw. Nws yog cov khoom siv ua tiav ib nrab rau kev tsim cov roj hmab ntau yam khoom siv roj hmab, feem ntau tau hu ua cov khoom siv roj tais, uas feem ntau yog muag raws li ib qho khoom lag luam. Cov neeg yuav khoom tuaj yeem siv cov khoom siv roj hmab los siv cov txheej txheem ncaj qha, cov duab thiab vulcanize nws mus rau hauv cov khoom lag luam uas yuav tsum tau. Cov. Raws li cov qauv sib txawv, muaj cov qhab nia ntawm cov qhab nia sib txawv thiab ntau yam nrog cov khoom sib txawv xaiv los ntawm.
5.IAV
Hauv cov txheej txheem ntau lawm ntawm cov khoom lag luam roj hmab, cov txheej txheem ntawm prefabricating ntau yam cov duab thiab ntau thiab tsawg los ntawm kev ua tiav lossis cov kev sib tw yog hu ua moulding.
6.Vulcanization
Cov txheej txheem ntawm kev hloov cov roj hmab yas rau hauv elastic roj hmab yog hu ua vulcanization. Nws yog ntxiv rau qee qhov nyiaj ntawm vulcanizing tus neeg sawv cev xws li leej faj, vulcanization accelerator, yog li cov roj hmab yas ua ke ua cov txiv ntoo yas ua kom muaj volcanizate.
Lub sijhawm Post: Mar-29-2022
