ABS yog ib qho thermoplastic polymer uas paub txog nws qhov toughness, cuam tshuam tsis kam, thiab kub tsis kam. Nws yog tsim los ntawm peb lub monomers: acrylonitrile, butadiene, thiab styrene. Qhov kev faib ua feem ntawm cov monomers no txiav txim siab cov khoom ntawm ABS resin. Piv txwv li, nce tus nqi ntawm acrylonitrile nce cov tshuaj tiv thaiv ntawm cov khoom, thaum nce tus nqi ntawm butadiene txhim kho nws cov kev cuam tshuam.
ABS txhaj tshuaj molding yog ib qho kev xaiv nrov rau ntau lub tuam txhab vim nws muaj ntau yam thiab siv tau yooj yim. Nws tuaj yeem raug molded rau hauv cov duab nyuaj, muaj qhov ruaj khov zoo, thiab tuaj yeem pleev xim los yog dai kom zoo nkauj. Tsis tas li ntawd, nws tuaj yeem ua ke nrog lwm cov ntaub ntawv los tsim cov khoom sib xyaw nrog cov khoom tshwj xeeb.
ABS txhaj tshuaj molding txheej txheem feem ntau suav nrog cov kauj ruam hauv qab no:
Kev npaj cov khoom: ABS pellets raug thauj mus rau hauv lub tshuab txhaj tshuaj molding lub hopper, qhov chaw uas lawv tau rhuab thiab yaj.
Txhaj Tshuaj: Cov khoom siv ABS melted yog txhaj rau hauv pwm kab noj hniav nyob rau hauv siab. Cov pwm feem ntau yog ua los ntawm ob lub halves uas tau tuav ua ke los ntawm ib chav clamping.
Txias: Tom qab cov ABS molten raug txhaj rau hauv pwm, nws pib txias thiab khov. Lub sijhawm txias yog txiav txim siab los ntawm qhov tuab ntawm qhov thiab cov khoom siv.
Ejection: Thaum ib feem tau solidified, lub pwm qhib, thiab ib feem yog ejected los ntawm pwm kab noj hniav.
Muaj ntau ntau yam uas yuav tsum tau xav txog thaum tsim cov txheej txheem ABS txhaj tshuaj molding, nrog rau cov geometry, cov khoom siv, thiab cov cuab yeej tsim. Kev tsim cov pwm yog qhov tseem ceeb los xyuas kom meej tias cov khoom yog tsim nrog qhov xav tau qhov ntev thiab qhov chaw tiav. Tsis tas li ntawd, kev xaiv ntawm txoj cai txhaj tshuaj molding tshuab thiab kev ua haujlwm tsis tuaj yeem cuam tshuam qhov zoo thiab sib xws ntawm cov khoom tsim.
Hauv kev xaus, ABS txhaj tshuaj molding yog cov txheej txheem tsim khoom siv dav siv uas muaj ntau yam txiaj ntsig, suav nrog ntau yam, siv tau yooj yim, thiab cov cuab yeej zoo heev. Nws yog qhov kev xaiv nrov rau ntau yam kev siv, suav nrog cov khoom siv tsheb, cov khoom siv hluav taws xob, thiab cov khoom ua si. Kev nkag siab txog cov khoom ntawm cov khoom thiab cov txheej txheem txhaj tshuaj molding yog ib qho tseem ceeb rau kev tsim cov khoom zoo thiab raug nqi.
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