Ua ntej
Kev sib xyaw ua ke yog ib theem tseem ceeb hauv kev tsim cov roj hmab, nrog rau kev sib xyaw ntawm cov roj hmab cov khoom xyaw thiab cov khoom ntxiv los tsim cov roj hmab sib xyaw. Ib qho tseem ceeb zoo qhia uas yog ib qho tseem ceeb rau lub functionality thiab daim ntawv thov ntawm cov khoom yog lub hardness ntawm lub compound. Tab sis qee zaus, ib qho kev sib xyaw ua ke uas siab dhau los yog qis dhau yuav muaj kev cuam tshuam rau cov khoom lag luam thiab kev ua haujlwm zoo. Cov laj thawj rau ob qho tib si siab dhau thiab tsis tshua muaj kev sib xyaw hardness yuav tau tham hauv kab lus no, nrog rau cov peev txheej kho tau.
Yog vim li cas vim li cas lub hardness ntawm cov roj hmab sib xyaw yog siab dhau
Overheating: Ntau dhau hardness tuaj yeem tshwm sim yog tias cov khoom siv roj hmab tau dhau los ua overheated thaum lub sijhawm sib tov. Cov khoom siv roj hmab yuav dhau los ua nruj dua vim qhov muaj zog ntawm cov qauv sib txuas ntawm cov roj hmab molecules ntawm qhov kub thiab txias.
Over-vulcanization: Cov xwm txheej no ua rau muaj cov roj hmab nyuaj heev thiab yog tshwm sim los ntawm kev siv ntau dhau ntawm vulcanizing tus neeg sawv cev thaum lub sijhawm sib xyaw lossis lub sijhawm ntev vulcanization ntau dhau.
Teeb meem nrog cov qauv roj hmab: Cov roj hmab yuav dhau los ua ib qho nyuaj yog tias cov khoom ntim, cov yas, thiab cov pacifiers tsis raug xaiv thiab tsis raug.
Yog vim li cas vim li cas lub hardness ntawm cov roj hmab sib xyaw yog tsawg dhau
Cov cua sov tsis txaus: Lub hardness ntawm cov roj hmab yuav tsawg dhau yog tias cov khoom xyaw nyoos tsis raug cua sov txaus thaum lub sijhawm sib tov. Lub softer roj hmab composite yog tsim thaum cov roj hmab molecules tsis tuaj yeem sib txuas ntawm qhov kub qis.
Tsis txaus vulcanization: Lub degree ntawm vulcanization thiab hardness ntawm cov roj hmab compound tej zaum yuav tsis zoo yog hais tias tus vulcanizing tus neeg sawv cev tsis siv txaus thaum lub sij hawm sib tov los yog lub sij hawm vulcanizing tsis txaus.
Cov teeb meem roj hmab: Ib qho roj hmab uas tsis tshua muaj zog tuaj yeem tshwm sim los ntawm cov qauv roj hmab uas siv cov khoom siv tsis raug, muaj qhov tsis raug, lossis siv cov khoom tsis zoo.
Kev daws:
Tswj cov txheej txheem rau cua sov thiab vulcanization: xyuas kom tseeb tias cov cua sov thiab vulcanization tau tiav, thiab tsis txhob siab dhau los yog qis dhau los ntawm qhov sib txawv ntawm qhov kub thiab txias thiab lub sijhawm nyob rau hauv cov txheej txheem sib tov.
Txhim kho cov qauv roj hmab los ntawm kev ua tib zoo xaiv thiab kho tus nqi thiab hom plasticizers, pacifiers, fillers, thiab lwm yam additives kom paub tseeb tias cov mis siv tau thiab yuav muab qhov xav tau hardness.
Kev soj ntsuam nruj nruj raws li kev cai yuav tsum tau tsim kom muaj lub ntsej muag thiab tswj cov khoom zoo ntawm cov khoom siv raw thiab kev sib xyaw ua haujlwm, nrog rau kev ruaj ntseg ntawm qhov kawg.
Hloov cov vulcanization tej yam kev mob: kom ncav cuag lub hom phiaj hardness yuav tsum tau, hloov cov vulcanizing tus neeg sawv cev piv thiab vulcanizing ntev raws li tsim nyog.
Hauv kev xaus
Siab dhau los yog qis dhau ntawm qhov sib xyaw hardness tuaj yeem cuam tshuam rau kev ua haujlwm thiab qhov zoo ntawm cov khoom. Nws yog ib qho tseem ceeb kom nkag siab txog qhov ua rau ntawm qhov sib xyaw ua ke ntawm qhov txawv txav thiab siv cov kev kho kom tsim nyog thiaj li lav tau cov khoom siv roj hmab zoo ib yam. Cov neeg tsim khoom siv roj hmab tuaj yeem tswj hwm qhov nyuaj ntawm qhov sib xyaw thiab lav qhov tsim cov khoom zoo uas ua tiav cov txheej txheem los ntawm kev siv cov txheej txheem tswj hwm thiab cov qauv zoo. Nyob rau tib lub sijhawm, kev kuaj xyuas zoo thiab kev saib xyuas cov txheej txheem yog qhov tseem ceeb los lav tias cov khoom lag luam ua tau raws li qhov tsim nyog hardness.
Ntau dhau los yog me ntsis hardness nyob rau hauv lub compound tej zaum yuav tshwm sim ntawm ntau yam teeb meem cuam tshuam. Yog li ntawd, cov neeg tsim khoom yuav tsum tau paub zoo txog cov khoom thiab cov txheej txheem ntawm cov khoom siv roj hmab thiab tuaj yeem hloov kho kom haum rau cov xwm txheej hloov. Cov neeg tsim khoom muaj peev xwm ua kom tiav cov kev xav tau hardness ntawm cov khoom siv roj hmab hauv ntau qhov chaw thiab kev siv thaum tseem txhim kho cov khoom zoo thiab sib xws ntawm kev ua kom zoo dua qub.
Hauv kev xaus, ib qho kev sib xyaw ua ke tuaj yeem cuam tshuam los ntawm ntau qhov sib txawv, xws li vulcanization, cua sov, thiab roj hmab muaj pes tsawg leeg. Txhawm rau lav tias qhov sib xyaw hardness poob rau hauv qhov tsim nyog, cov neeg tsim khoom yuav tsum ua kom zoo dua lawv cov qauv thiab siv cov kev tswj hwm tsim nyog. Lawv kuj yuav tsum tswj kom muaj kev sib luag thiab ruaj khov los ntawm kev soj ntsuam zoo thiab kev saib xyuas cov txheej txheem. Qhov no ua rau kev tsim cov khoom siv roj hmab zoo uas ua tau raws li daim ntawv thov thiab cov neeg siv khoom.