Muaj ntau yam uas ua rau muaj npuas nyob hauv cov khoom vulcanized ntawm cov khoom siv roj hmab. Cov laj thawj tseem ceeb yog cov khoom siv raw, cov roj hmab sib xyaw ua ke thiab kev ua haujlwm, kev ua haujlwm thev naus laus zis, Vulcanizing Xovxwm Tshuab khoom thiab pwm.
1. Cov khoom siv raw
1. Ua rau kev tsom xam
(1) Cov dej noo thiab cov ntsiab lus tsis hloov pauv ntawm cov roj hmab ntuj tshaj tus qauv
(2) Cov dej noo nce ntxiv hauv cov khoom siv tshuaj lom neeg thiab cov khoom pabcuam cia, batching thiab lwm yam txuas.
(3) Cov hlua hlau yog damp, thiab cov hlau hlau nplaum tsis qhuav.
(4) Cov dej noo rov qab ntawm cov hlua fiber ntau yog siab, cov xov qub yog siab dua 2 feem pua, thiab nws siab dua 1 feem pua ua ntej calendering.
2. Kev daws teeb meem
(1) Tom qab txiav cov roj hmab ntuj, ntsuas cov roj hmab kom qhuav, tswj cov dej noo thiab cov teeb meem tsis haum raws li tus qauv, nruj me ntsis txwv tsis pub tshaj tus qauv, thiab txo cov dej noo hauv cov roj hmab qub.
(2) Ntxiv kev ntsuas dej noo thaum khaws cov khoom siv raw khoom thiab cov khoom siv ntxiv, tshwj xeeb tshaj yog nyob rau lub caij ntuj nag thiab huab cua hnyav thaum lub caij los nag, tshwj xeeb tshaj yog pab kev thauj mus los, khaws cia, thiab ua haujlwm.
thiab lwm yam kev sib txuas, kom tsis txhob cov ntaub ntawv raw tau ntub thiab ntub. Cov khoom nyoos npaj tau ntim thiab pub rau hauv cov yas.
(3) Tshem tawm cov hlua hlau 1 teev ua ntej siv, khaws cov av noo hauv tsev kom tsis pub dhau tus qauv, zam cov hlua hlau kom tsis txhob ntub, thiab qhuav cov hlau xaim tom qab siv cov kua nplaum.
ua siab ntev.
(4) Cov hlua fiber ntau yog cua sov thiab qhuav ua ntej calendering, thiab noo noo rov qab ntawm txoj hlua ua ntej nkag mus rau lub calender yog tsawg dua 1 feem pua.
2. Cov yam ntxwv ntawm cov khoom ua tiav
1. Ua rau kev tsom xam
(1) Cov khoom siv ntxiv hauv cov roj hmab sib xyaw tsis sib xyaw ua ke thaum sib xyaw.
(2) Qhov sib tov kub yog tsawg, thiab cov dej tsis volatilized huv si. Thaum qhov kub thiab txias, cov sulfur yog ib qho yooj yim rau yaj los yog scorch thaum ntxiv sulfur rau ntawm qhov qhib zeb.
(3) Cov roj hmab sib xyaw yog siv rau kev tsim khoom thaum lub sijhawm nres tsheb tsis txaus lossis yog tias tsis nres.
(4) Cov khoom siv roj hmab tsis sib xws, thiab qhov chaw tsis zoo thaum nws molded
(5) Thaum cov roj hmab sib xyaw yog kub-melted rau ntawm qhov qhib zeb, qhov saum npoo yog npog nrog huab cua, thiab cov txheej txheem tawm pwm muaj qhov tshwm sim ntawm huab cua harboring.
2. Kev daws teeb meem
(1) Txhim kho cov qauv tsim, xaiv yooj yim dispersible additives los hloov cov khoom siv tam sim no, nce kev siv cov khoom siv ntxiv xws li dispersants thiab homogenizers, thiab txhim kho kev ua haujlwm ntawm ntau yam.
Dispersion zog ntawm additives.
(2) Cov roj hmab sib xyaw yog tsim los ntawm ob-theem txheej txheem ntawm cov khoom siv sab hauv. Thaum lub sij hawm thawj-theem sib tov, qhov kub yog nce mus rau tag nrho volatilize cov ya raws thiab volatiles nyob rau hauv cov ntaub ntawv raw.
Tom qab qhov chaw nres tsheb, qhov sib tov ob-theem yog nqa tawm, thiab qhov kub thiab txias yog tswj nyob rau hauv qhov kub thiab txias ntawm kev ntxiv sulfur thiab accelerator kom tsis txhob muaj lub sijhawm luv luv los yog scorch.
(3) nruj me ntsis tswj lub sij hawm nres tsheb ntawm cov khoom ib nrab tiav nyob rau hauv txhua tus txheej txheem ntawm mastication, - theem sib tov, theem ob mixing, thiab molding. Cia txhua yam additives diffuse tag nrho thiab txhim kho cov roj hmab compound
Lub uniformity yog qhov zoo rau kev rov qab los ntawm kev ntxhov siab thiab strain nyob rau hauv mechanical kev txiav txim.
(4) Cov khoom siv roj hmab yuav tsum sib npaug, thiab cov khoom siv roj hmab yuav tsum sib xyaw ua ke los ntawm kev ua haujlwm xws li txiav riam, xaum disks, thiab tamping. Txoj kev ua haujlwm uas cais cov kua nplaum thiab cov molding los ntawm kev sib xyaw kub yog saws.
formula los txhim kho qhov smoothness ntawm qhov chaw ntawm molding compound.
(5) Cov roj hmab sib txuas yog extruded los ntawm cov txheej txheem extrusion, thiab qhov chaw ntawm cov roj hmab extruded tsis muaj qhov tshwm sim ntawm kev ntxiab cua.
