Qhjwm ntawm lub srew ib leeg thiab ob leeg srew extruders txhais tau tias muaj qhjwm tseemceeb hauv kev lag luam tsim kho polymer, txhua qhov muaj cov lus txwv thiab qhia tias zoo tshaj plaws thiab qhov chaw siv txaus siab. Lub srew ib leeg extruders ua haujlwm dav hlau los ntawm kev ntxuav los ntawm kev rub, uas yog kev sib txuas ntawm lub srew nyiag thiab lub barrel nyiag siv rau kev pib, thawb thiab tso tawm vaj. Qhov kev ua no tsim tau cov chaw tsim khoom tsim nyog, muaj peev xeeb thiab zoo tshaj rau cov haujlwm uas xav tau kev tso tawm tas li thiab kev tso zog siab, xws li kev tsim kho profile, kev tsim kho sheet, thiab kev tsim kho fiber. Cov khib nyiab ntawm nws yog kev paub meej meej txog kev sib thooj thiab kev nyuaj siab rau kev sib piv ntawm hom thiab kev sib txuas ntawm vaj. Tom qab ntawd, co-rotating twin screw extruders ua haujlwm los ntawm kev tso zog tsis pub rov qab, muab kev daws teeb meem zoo dua rau kev sib txuas ntawm vaj thiab sijhawm nyob. Lub design ntawm barrel thiab srew, uas muaj ntau yam kev tso, kev ntxuav, thiab kev sib thooj, ua rau nws muaj peev xwm zoo. Qhov kev tsim no tsis tu ncua rau cov haujlwm uas xav tau kev sib thooj zoo, xws li kev tsim kho masterbatch, kev tsim kho polymers uas muaj ntau, kev tsim kho alloy, thiab reactive extrusion. Qhov kev ua siab ntawm cov srew sib sau ua rau muaj kev tso tawm tshaub lossis solvents zoo dua. Txhawm tias twin screw extruders muaj tus nqi pib siab dua thiab tus nqi hluav taws xob tshwj xeeb dua, tab sis lawv muaj kev ua haujlwm zoo dua thiab kev sib thooj zoo dua. Kev xaiv ntawm ob qhov kev lag luam no tsis yog qhov twg zoo dua, tab sis yog qhov twg raug rau qhov kev siv. Single screw extruders zoo tshaj rau kev tsim kho vaj uas tau compounding tag nrho, zoo tshaj rau kev tsim kho daim ntawv. Nyob pem teb, twin screw extruders yog qhov leej twg xav tau kev homogenization lossis kev hloov kho kim tuam. Cov chaw tsim khoom nyob tam sim no feem ntau siv ob yam no raw, siv twin screw extruder rau kev tsim kho thiab single screw rau kev tsim kho daim ntawv, kom siv cov zog tseem ceeb ntawm txhua qhov kev lag luam hauv kev tsim kho.