Dab tsi yog cov yas txhaj tshuaj molded?

1, Txheej txheem txheej txheem ntawm Txhaj Molding Plastics
Txhaj tshuaj molding yog txheej txheem uas molten yas yog txhaj rau hauv pwm nyob rau hauv lub siab, txias thiab solidified kom tau raws li qhov xav tau ntawm cov khoom. Cov cuab yeej no tuaj yeem tsim cov khoom yas nrog cov duab zoo, qhov ntev, qhov chaw du, thiab kev ua haujlwm siab, tsim nyog rau kev tsim khoom loj. Yog li ntawd, xaiv cov khoom yas haum rau kev txhaj tshuaj molding yog qhov tseem ceeb heev.
2, Hom yas haum rau kev txhaj tshuaj molding
1. Cov khoom siv thermoplastic
Thermoplastic yog ib qho ntawm cov khoom siv feem ntau siv hauv kev txhaj tshuaj molding. Hom yas no softens thiab ntws thaum rhuab, thiab tuaj yeem khov rau hauv cov duab tom qab txias, thiab cov txheej txheem no tuaj yeem rov ua dua. Cov khoom siv thermoplastic feem ntau suav nrog:
Polypropylene (PP): Nrog rau cov tshuaj tiv thaiv zoo heev, tiv thaiv tshav kub, thiab lub zog txhua yam, nws tau siv dav hauv kev lag luam xws li ntim khoom noj, khoom siv kho mob, thiab cov khoom siv tsheb.
Polyethylene (PE): muab faib ua ntau hom xws li low-density polyethylene (LDPE), high-density polyethylene (HDPE), thiab lwm yam., nws muaj kev yooj yim, tsis kub tsis kam, thiab kev cuam tshuam, thiab feem ntau yog siv rau hauv kev tsim khoom. ntawm cov hnab yas, ntim, thiab lwm yam.
Polystyrene (PS): siab transparency, yooj yim rau txheej txheem, tab sis tsis zoo tshav kub tsis kam, feem ntau yog siv los ua cov tais diav pov tseg, khoom ua si, thiab lwm yam.
ABS resin: luv luv rau acrylonitrile butadiene styrene copolymer, nws muaj cov khoom siv zoo heev, kev cuam tshuam, thiab kev ua haujlwm, thiab yog siv dav hauv kev lag luam xws li hluav taws xob, tsheb, khoom ua si, thiab lwm yam.
2. Cov yas thermosetting
Txawm hais tias thermosetting plastics tsis tshua muaj siv hauv kev txhaj tshuaj molding, lawv kuj tau siv rau qee qhov tshwj xeeb. Thermosetting plastics tau txais tshuaj lom neeg cov tshuaj tiv thaiv thiab solidify thaum rhuab, thiab ib zaug solidified, lawv tsis tuaj yeem yaj dua. Txawm li cas los xij, molding tuaj yeem ua tiav los ntawm cov txheej txheem tshwj xeeb, xws li siv cov thermosetting plastics rau kev txhaj tshuaj molding. Tab sis cov ntaub ntawv no muaj cov nqi siab dua thiab kev ua haujlwm nyuaj dua.
3, Kev xaiv cov txheej txheem rau txhaj tshuaj molded yas
Thaum xaiv cov ntaub ntawv yas rau kev txhaj tshuaj molding, cov hauv qab no yuav tsum tau xav txog:
Cov khoom lag luam yuav tsum tau ua: Xaiv cov yas nrog cov khoom siv sib xws, kev ua haujlwm kub, tshuaj lom neeg, thiab lwm yam khoom raws li cov khoom siv ib puag ncig thiab kev ua haujlwm.
Kev ua tau zoo: Xav txog kev ua haujlwm ntawm cov yas xws li melting kub, fluidity, shrinkage tus nqi, thiab lwm yam., kom ntseeg tau tias qhov kev vam meej ntawm kev txhaj tshuaj molding txheej txheem thiab cov khoom ruaj khov.
Tus nqi ua tau zoo: Thaum ua kom cov khoom zoo, xaiv cov khoom siv uas tsis tshua muaj nqi thiab dav siv los txo cov nqi tsim khoom.
4, Daim ntawv thov teb ntawm kev txhaj tshuaj molded yas
Txhaj molded yas yog dav siv nyob rau hauv ntau yam teb vim lawv ntau hom thiab zoo heev zog
Automotive kev lag luam: Txhaj tshuaj molded yas khoom xws li bumpers, instrument panels, qhov rooj sab hauv panels, thiab lwm yam. tsis tsuas yog txo qhov hnyav ntawm lub tsheb lub cev, tab sis kuj txhim kho cov roj kev lag luam thiab kev nyab xeeb ntawm lub tsheb.
Cov khoom siv hluav taws xob: txhaj tshuaj molded yas plhaub, cov khoom sib txuas, cov khoom siv hluav taws xob, thiab lwm yam khoom siv uas tiv thaiv cov hluav taws xob sab hauv thaum muab qhov zoo nkauj zoo nkauj thiab xis nyob.
Cov khoom siv kho mob: Txhaj tshuaj molded cov ntaub ntawv yas xws li polypropylene, polycarbonate, thiab lwm yam yog siv dav hauv kev tsim cov khoom siv kho mob vim lawv tsis muaj tshuaj lom, corrosion-resistant, thiab yooj yim rau txheej txheem cov yam ntxwv.
Cov khoom siv niaj hnub: Los ntawm cov fwj dej thiab cov tais diav rau cov khoom ua si, ntawv sau, thiab lwm yam, cov khoom siv yas txhaj tshuaj tau sib xyaw ua ke rau hauv tib neeg lub neej txhua hnub nrog lawv cov nqi qis thiab ntau hom.