Yas moulding thiab hloov moulding yog cov txheej txheem tseem ceeb ntawm cov thermosetting plastics. Xovxwm thiab hloov tshuab moulding siv rau molding yog cov khoom siv tseem ceeb ntawm ntau yam khoom yas uas ua los ntawm cov yas thermosetting. Lub luag haujlwm ntawm cov xovxwm yog los ntawm cov yas yas ntawm lub siab yas, yog tias siv hom ruaj khov, tab sis kuj tseem muaj qhov qhib thiab kaw pwm thiab lub luag haujlwm ntawm cov khoom siv ejector. Cov nias rau molding tau muab faib ua ob pawg: lub cev muaj zog nias thiab hydraulic nias. Vim tias cov khoom siv xovxwm ntawm kev tsim khoom, kev ua haujlwm thiab kho yog qhov nyuaj dua li cov xovxwm hydraulic, thiab tsis haum rau kev ntim cov yas loj, yog li maj mam tshem tawm. Kev siv cov nias yog qhov pib hydraulic nias. Lub siab nruab nrab ntawm cov xovxwm hydraulic feem ntau muaj ob hom roj thiab dej, qhov qub yog siv dav hauv nruab nrab thiab cov khoom me me. Hloov cov cuab yeej siv mould tuaj yeem siv nrog tib lub tshuab nias hydraulic, tab sis kuj tuaj yeem siv rau tshwj xeeb hloov tshuab moulding. Kev hloov tshuab moulding yog qhov tseeb ob npaug hydraulic xovxwm nrog ob lub tog raj kheej hydraulic. Raws li nws cov qauv tuaj yeem faib ua hom siab thiab qis dua ob hom thiab txoj cai kaum ob hom.