Dab tsi yog txoj kev ncab thiab tshuab moulding?
Siv tau ntau txoj hau kev rau txoj kev siv ob txoj hlua tshuab moulding.Nws tuaj yeem raug faib ua extruded stretch tshuab moulding thiab injected stretch tshuab molding.Multilaj dawb rau co-extrusion los co-injection molding kuj siv tau rau ncab thiab tshuab moulding.The technological cov txheej txheem ntawm ob sab duab thiab tshuab raj tuaj yeem raug faib ua cov kauj ruam nram qab no: pwm ua, txias, reheating (tempering), longitudinal drawing, circumferential drawing (tshuab raj thiab nthuav dav) thiab lub nkoj nqus tsev.Thaum cov kauj ruam no tiav hauv ib qho , nws yog hu ua ib kauj ruam txoj hauv kev; Yog tias cov kauj ruam no tau muab faib ua ob ntu thiab ua tiav hauv ob qho kev ua haujlwm, nws yog hu ua ob txoj haujlwm.