Nyob rau hauv lub tshav pob ntawm automotive tha xim sab hauv manufacturing, yas dominates vim lawv zoo nyob rau hauv lub teeb yuag tsim, uas tsis muaj nqi, thiab yooj yim ntawm molding. Kev txhaj tshuaj molding thiab lub tshuab nqus tsev yog ob txoj kev siv ntau tshaj plaws. Raws li cov txheej txheem molding sib txawv, lawv pom qhov sib txawv ntawm cov khoom precision, ntau lawm efficiency, thiab kev tswj tus nqi, ncaj qha cuam tshuam rau qhov zoo ntawm cov khoom sab hauv thiab tag nrho cov nqi -kev ua tau zoo ntawm lub tsheb. Cov kev ntsuam xyuas hauv qab no yuav tshawb xyuas qhov sib txawv ntawm cov ntsiab lus tseem ceeb, qhov zoo thiab qhov tsis zoo, thiab cov kev siv tsim nyog.
Qhov sib txawv tseem ceeb ntawm kev txhaj tshuaj molding thiab lub tshuab nqus tsev tsim los ntawm lawv qhov sib txawv molding logics. Txhaj tshuaj molding yog txheej txheem "active filling", qhov twg molten yas raw khoom yog txhaj rau hauv cov pwm pwm kab noj hniav nyob rau hauv siab, thiab ces txias thiab solidified kom tau cov molded ib feem. Lub tshuab nqus tsev tsim, ntawm qhov tod tes, yog txheej txheem "passive adsorption", qhov twg cov ntawv yas thermoplastic yog rhuab thiab muag muag, thiab tom qab ntawd, siv lub tshuab nqus tsev siab, ua kom nruj rau cov pwm saum npoo, txias thiab khov rau hauv qhov chaw. Qhov sib txawv ntawm txoj cai ncaj qha ua rau muaj qhov sib txawv ntawm cov qauv pwm thiab cov ntaub ntawv raw: txhaj tshuaj pwm yog cov txiv neej thiab poj niam pwm, txoj hauv kev hauv cov qauv thiab xav tau kev kub siab, thiab cov khoom siv raw yog nyob rau hauv daim ntawv granular; Lub tshuab nqus tsev feem ntau siv ib zaug - kab noj hniav poj niam lossis txiv neej pwm, uas yooj yim dua hauv cov qauv, thiab cov khoom siv raw yog ib daim ntawv ua ntej -fabricated.
Los ntawm qhov kev pom zoo, kev txhaj tshuaj molding yog qhov zoo dua rau kev ua haujlwm siab - zoo, qhov nyuaj sab hauv. Ua ntej, nws muaj cov molding siab heev precision, raug replicating pwm cov ntsiab lus thiab ua rau kev sib xyaw molding ntawm complex curves, grooves, thiab buckles. Cov khoom tseem ceeb sab hauv xws li dashboards thiab nruab nrab consoles, piv txwv li, muaj qhov smoothness thiab seem stability nyob deb tshaj li lub tshuab nqus tsev- cov khoom tsim. Thib ob, nws khav theeb kev ua tau zoo ntawm kev tsim khoom, tsim rau loj- nplai ntau lawm, nrog 1-2 moldings ib feeb rau pwm kab noj hniav, thiab ntxiv peev xwm ua tau los ntawm ntau- kab noj hniav tsim. Thib peb, nws muaj cov khoom siv dav dav, sib xws nrog ntau yam khoom siv hluav taws xob xws li PP, ABS, thiab PC, thiab tseem tuaj yeem siv cov txheej txheem tshwj xeeb xws li fiber ntau thiab ob- xim co-txhaj tshuaj, txhim kho cov khoom muaj zog thiab zoo nkauj.
Cov txiaj ntsig tseem ceeb ntawm lub tshuab nqus tsev tsim, txawm li cas los xij, dag hauv kev tswj tus nqi thiab kev tsim khoom yooj yim. Ua ntej, tus nqi pwm ntawm lub tshuab nqus tsev yog tsuas yog 1/5 txog 1/10 ntawm kev txhaj tshuaj molding. Rau qhov loj sab hauv nrog cov qauv yooj yim, xws li lub qhov rooj vaj huam sib luag liner, lub taub hau lub taub hau, thiab lub hnub visors, nws tuaj yeem txo qis kev nqis peev hauv thawj zaug. Thib ob, cov txheej txheem muaj kev hloov pauv tau yooj yim, nrog cov pwm hloov pauv luv luv thiab cov nqi qis, ua rau nws tsim nyog rau me me -batch ntau lawm lossis kev tsim kho sab hauv rau tsheb, tso cai rau cov lus teb sai rau kev tsim iteration xav tau. Tsis tas li ntawd, rau nyias -walled, loj- cheeb tsam tiaj tus lossis tsuas yog nkhaus qhov chaw, lub tshuab nqus tsev ua tau zoo txo cov khoom pov tseg, thiab lub zog siv thaum lub sij hawm molding yog qis dua li ntawm kev txhaj tshuaj molding.
Qhov tsis zoo ntawm ob txheej txheem kuj tseem cuam tshuam nrog lawv cov txheej txheem txheej txheem. Lub shortcomings ntawm kev txhaj tshuaj molding yog nyob rau hauv lub siab pib peev; ib txheej ntawm precision txhaj pwm tuaj yeem raug nqi ntau pua txhiab yuan, thiab lub voj voog kev loj hlob tuaj yeem ntev li 3-6 lub hlis, ua rau nws tsis tsim nyog rau me me -batch ntau lawm. Nyob rau tib lub sijhawm, cov txheej txheem molding yuav tsum muaj siab - lub zog tsav, ua rau muaj kev siv zog ntau, thiab cov txheej txheem nyuaj yog qhov ua rau muaj qhov tsis xws luag xws li cov cim dab dej thiab cov kab vuam, ua rau cov txheej txheem nyuaj. Lub ntsiab drawbacks ntawm lub tshuab nqus tsev forming yog nws cov tsawg molding raug, tsis muaj peev xwm mus cuag kev sib xyaw molding ntawm complex qauv, thiab nyiam burrs thiab tsis sib xws thickness ntawm cov npoo ntawm cov khoom. Kev ua haujlwm ntau lawm kuj qis dua, nrog rau ib qho -daim molding voj voog feem ntau yog li ntawm 1 txog 5 feeb, ua rau nws nyuaj rau kev ua tau raws li qhov xav tau ntawm cov khoom loj loj. Tsis tas li ntawd, qhov ntau ntawm cov ntaub ntawv siv tau yog nqaim, tsuas yog tsim rau ob peb daim ntawv thermoplastic xws li PS thiab PP, thiab lub zog tsis tshua muaj, xav tau kev txhawb nqa ntxiv los ntawm txoj hauv kev xws li ntxiv cov hlua khi los txhim kho kev ua haujlwm.
Los ntawm qhov kev xav ntawm qhov kev thov tiag tiag, ob txoj kev sib txuas ua ke: kev txhaj tshuaj molding yog dav siv rau cov tub ntxhais sab hauv uas yuav tsum tau muaj kev ua haujlwm siab thiab cov txheej txheem nyuaj, xws li cov cuab yeej ntsuas, qhov nruab nrab consoles, thiab iav hloov hauv paus; Lub tshuab nqus tsev tsim feem ntau yog siv rau cov khoom siv sab hauv nrog cov qauv yooj yim thiab qhov loj me, xws li lub qhov rooj vaj huam sib luag, cov thawv ntim khoom, thiab cov ntaub pua tsev. Raws li kev lag luam kev lag luam tsheb hloov mus rau tus kheej thiab lub teeb yuag, ob txoj haujlwm tseem ua haujlwm txuas ntxiv thiab ua kom zoo dua qub, xws li siv cov tshuaj sib xyaw ua ke ntawm kev txhaj tshuaj - cov qauv txheej txheem molded + lub tshuab nqus tsev - tsim vaj huam sib luag zoo nkauj, ntsuas qhov zoo thiab tus nqi.
Hauv cov ntsiab lus, tsis yog kev txhaj tshuaj molding lossis lub tshuab nqus tsev yog qhov zoo tshaj plaws; qhov tseem ceeb nyob rau hauv kev sib piv cov kev xav tau: rau cov tub ntxhais sab hauv qhov chaw uas yuav tsum tau siab precision thiab loj - teev ntau lawm, txhaj tshuaj molding yog qhov kev xaiv zoo; rau kev tswj tus nqi, me me -batch ntau lawm, los yog loj, yooj yim structural qhov chaw, lub tshuab nqus tsev forming muaj ntau qhov zoo. Nkag siab txog qhov sib txawv ntawm ob txheej txheem thiab xaiv qhov tsim nyog yog qhov tseem ceeb rau kev ntsuas qhov zoo ntawm cov khoom siv hauv tsheb nrog cov nqi tsim khoom.