Cov tshuab extruder ntxaib siv dav rau kev hloov kho lub cev ntawm cov polymers, thiab kuj siv tau rau kev extrusion ntawm cov khoom molded. Nws cov yam ntxwv pub mis zoo dua, thiab nws muaj kev sib xyaw, cua, thiab kev ntxuav tus kheej zoo dua li ib lub tshuab extruder ntsia hlau. Los ntawm kev sib xyaw ua ke ntawm ntau hom ntawm cov ntsia hlau, lub tshuab extruder ntxaib nrog cov haujlwm tso pa tawm tsim los ua cov khoom siv hauv tsev tuaj yeem siv rau hauv cov hauv qab no.
- Kev tsim cov masterbatch
Cov khoom sib xyaw ua ke ntawm cov yas me me thiab cov khoom ntxiv yog cov khoom siv tswv. Cov khoom ntxiv suav nrog cov xim, cov khoom sau thiab cov khoom ntxiv ua haujlwm. Lub tshuab extruder twin-screw yog cov khoom siv tseem ceeb ntawm cov kab ntau lawm masterbatch, siv rau kev sib xyaw, kev sib kis thiab kev sib xyaw ntawm cov khoom ntxiv hauv cov polymer matrix.
- Kev hloov kho sib xyaw
Muab qhov kev sib xyaw ua ke zoo tshaj plaws ntawm cov matrix thiab cov khoom ntxiv, cov khoom sau. Cov iav fiber yog cov khoom siv txhawb nqa tseem ceeb tshaj plaws, tab sis lwm cov fibers kuj tuaj yeem ua ke nrog cov polymer carriers. Los ntawm kev ntxiv cov fibers thiab sib xyaw nrog cov polymers, cov ntaub ntawv uas muaj zog thiab tiv taus kev cuam tshuam siab tuaj yeem tau txais, thiab tib lub sijhawm, qhov hnyav thiab tus nqi tuaj yeem txo qis.
- Cov pa tawm
Vim yog qhov sib txuas ntawm ob lub ntsia hlau, cov txheej txheem txiav ntawm cov khoom siv ntawm qhov chaw sib txuas tas li hloov kho cov txheej txheem saum npoo ntawm cov khoom siv thiab txhim kho cov nyhuv tso pa tawm, yog li ntawd lub twin-screw extruder muaj kev ua tau zoo dua li lub exhausted ib leeg-screw extruder. Kev ua tau zoo ntawm cov pa tawm.
- Kev rho tawm ncaj qha
Lub tshuab extruder twin-screw kuj tseem tuaj yeem sib xyaw ua ke kev sib xyaw thiab kev rho tawm molding. Los ntawm kev siv lub taub hau tshwj xeeb thiab cov khoom siv downstream tsim nyog, nws tuaj yeem tsim cov khoom tiav hauv txoj hauv kev zoo dua, xws li zaj duab xis, phaj, kav dej, thiab lwm yam. Kev rho tawm ncaj qha tuaj yeem tshem tawm cov kauj ruam ntawm kev txias thiab pelletizing thiab rov ua kom sov thiab yaj, thiab cov khoom raug kev nyuaj siab thermal thiab kev ntxhov siab shear tsawg dua. Tag nrho cov txheej txheem tuaj yeem txuag hluav taws xob thiab cov mis tuaj yeem hloov kho tau yooj yim.
