Nitrile roj hmab (NBR) feem ntau yog siv rau kev npaj cov khoom siv roj hmab. Raws li qhov kub thiab txias thiab cov ntsiab lus ntawm acrylonitrile nce, cov khoom siv thermoplastic ntawm NBR nce. Cov khoom siv thermoplastic muaj zoo molding fluidity thiab tsim nyog rau kev npaj cov khoom molded. Cov khoom siv roj hmab molded yog tsim los ntawm kev sau ib yam zoo thiab zoo ntawm cov roj hmab sib xyaw rau hauv pwm, vulcanizing nws ntawm lub tshuab vulcanizing tiaj tus, thiab tom qab ntawd demolding thiab trimming nws. Qhov zoo ntawm cov khoom siv roj hmab molded feem ntau yog txiav txim siab los ntawm cov qauv roj hmab thiab kev siv tshuab. Kab lus no tsuas yog tshawb txog cov txheej txheem txheej txheem uas cuam tshuam rau qhov zoo ntawm NBR molded cov khoom.
1. Cov khoom tsis zoo hauv NBR molded khoom
Lub hom phiaj ntawm molding yog muab cov khoom siv roj hmab ib yam zoo thiab lub cev, thiab kom tsis txhob muaj qhov tsis xws luag. Cov khoom tsis zoo ntawm NBR molded cov khoom yog raws li nram no: tearing ntawm txoj kab sib faib, nto ntws cov cim, roughness, Frost tsuag, lifting los yog curling, ob daim tawv nqaij kab nrib pleb, sab hauv npuas, ntau loj shrinkage, thiab tawg thaum lub sij hawm demolding.
2. Yam cuam tshuam rau qhov zoo ntawm NBR molded khoom
Kev npaj ntawm NBR molded cov khoom yuav tsum tau them sai sai rau tej yam xws li kev npaj roj hmab sib xyaw, pwm tsim, thiab vulcanization tej yam kev mob.
