Hom ntawm cov ntsia hlau chim

I. Kev faib tawm los ntawm tus naj npawb ntawm cov ntsia hlau
(I) Ib leeg ntsia hlau chim
Ib leeg ntsia hlau chim yog hom ntau dua. Nws muaj ib tug ntsia hlau thiab ib tug sib thooj chim. Lub taub hau ib leeg muaj cov qauv yooj yim thiab tus nqi qis. Hauv kev ua cov yas, ib qho ntsia hlau extruders feem ntau yog siv los tsim qee cov khoom yas yooj yim, xws li qee cov kav dej thiab cov yeeb nkab. Thaum cov ntsia hlau ib leeg ua haujlwm, cov ntsia hlau tig mus thawb cov khoom rau pem hauv ntej. Cov khoom siv mus los ntawm ntau qhov chaw hauv cov ntsia hlau zawj ntawm cov ntsia hlau, xws li thaj chaw pub mis, thaj chaw compression thiab metering cheeb tsam, thiab maj mam ua tiav cov khoom siv conveying, plasticizing thiab lwm yam txheej txheem. Piv txwv li, thaum tsim cov kav dej PVC zoo tib yam, ib lub taub hau ntsia hlau tuaj yeem ua tau raws li cov khoom siv yooj yim thauj khoom thiab cov khoom siv yas, plasticize PVC raw cov ntaub ntawv rau hauv ib qho zoo li yaj, thiab ces extrude rau hauv cov kav dej los ntawm pwm.

(II) Twin ntsia hlau chim
Parallel ntxaib ntsia hlau chim Lub ob lub qhov taub ntawm lub parallel ntxaib ntsia hlau chim yog muab tso rau hauv parallel nyob rau hauv lub thoob. Hom ntsia hlau no muaj kev sib xyaw ua haujlwm zoo dua vim tias qhov sib xyaw ua ke ntawm ob lub hau ntswj tuaj yeem ua rau cov khoom sib xyaw ua ke thiab sib xyaw hauv lub thoob. Hauv kev ua cov yas, cov kab sib txuas ntxaib-ntsia hlau txuas feem ntau yog siv los tsim cov khoom lag luam nrog cov kev xav tau siab rau kev sib xyaw ua ke, xws li kev tsim cov yas alloys, ntim cov khoom hloov pauv, thiab lwm yam. Piv txwv li, thaum tsim cov khoom hloov kho uas muaj PP thiab calcium carbonate, Parallel ntxaib-ntsia hlau chim chim tuaj yeem sib xyaw PP thiab calcium carbonate hmoov, kom calcium carbonate sib npaug sib npaug hauv PP matrix, thiab kev ua haujlwm ntawm cov yas. cov khoom raug txhim kho. Parallel ntxaib-ntsia hlau chim chim muaj ntau yam specifications, xws li cov sib tw twin-screw chim nrog txawv diameters xws li Φ50/2 thiab Φ65/2.

Conical twin-screw chim Lub taub hau ntawm lub conical twin-screw chim yog conical, thiab nws cov yam ntxwv yog tias cov ntsia hlau txoj kab uas hla yog loj dua nyob rau hauv lub feeding kawg, thiab cov ntsia hlau txoj kab uas hla yuav maj mam txo thaum cov khoom thauj mus rau pem hauv ntej. Cov qauv no ua rau lub conical twin-ntsia hlau chim muaj lub ntim loj dua thaum pub mis, thiab tuaj yeem hloov tau zoo dua rau cov khoom sib txawv thiab ntau thiab tsawg. Conical twin-screw chim yog feem ntau siv nyob rau hauv qee lub sij hawm uas yuav tsum tau siab rau cov khoom adaptability nyob rau hauv cov yas ua, xws li ua ib co irregularly zoo li cov yas recycled hais. Piv txwv li, thaum rov siv cov khoom pov tseg yas los tsim cov khoom yas, conical twin-screw chims tuaj yeem ua cov khoom pov tseg yas ntawm cov duab sib txawv thiab ntau thiab tsawg, thiab rov ua cov yas rau hauv cov khoom yas tshiab.

2. Kev faib tawm los ntawm kev ua haujlwm thiab cov yam ntxwv ntawm cov qauv
(I) Venting ntsia hlau chim
Lub venting ntsia hlau chim yog muab nrog ib qho chaw nres nkoj ntawm lub thoob. Thaum lub sij hawm plasticization txheej txheem ntawm cov khoom, cov khoom volatile xws li ya raws thiab huab cua nyob rau hauv cov khoom yuav raug tso tawm. Qhov no yog qhov tseem ceeb heev rau kev tsim cov khoom yas uas muaj cov kev xav tau siab rau cov khoom zoo thiab tsis tuaj yeem muaj npuas lossis ya raws. Piv txwv li, thaum tsim cov ntawv yas pob tshab, yog tias muaj npuas hauv cov khoom, nws yuav cuam tshuam rau cov pob tshab thiab cov ntawv zoo. Lub venting ntsia hlau chim tuaj yeem daws tau qhov teeb meem no.

(II) Barrier ntsia hlau chim
Cov ntsia hlau ntawm lub barrier ntsia hlau chim yog muab nrog ib tug tshwj xeeb barrier qauv. Cov qauv no tso cai rau cov khoom ntws thiab sib tov tshwj xeeb hauv cov ntsia hlau zawj ntawm cov ntsia hlau, txhim kho cov nyhuv plasticization ntawm cov khoom. Piv txwv li, thaum ua ib co high-viscosity plastics, lub barrier ntsia hlau chim tuaj yeem txhim kho cov plasticization uniformity ntawm cov khoom, txo qhov muaj cov khoom tsis zoo, thiab txhim kho cov khoom yas zoo.

(III) Pin-type screw chim
Pin-type screw chims muaj pins nyob rau sab hauv phab ntsa ntawm cov ntsia hlau los yog chim. Cov pins no tuaj yeem cuam tshuam qhov ntws ntawm cov khoom siv thiab ua kom cov shear thiab sib xyaw ua haujlwm ntawm cov khoom. Thaum tsim qee cov khoom yas uas xav tau kev sib ntxiv ntawm ntau yam additives lossis pigments, tus pin-hom ntsia hlau chim tuaj yeem ua rau cov additives thiab pigments ntau tusyees dispersed nyob rau hauv cov yas matrix, yog li kev txhim kho cov kev ua tau zoo thiab cov tsos zoo ntawm cov khoom yas.