Kev tshuaj xyuas cov txheej txheem ntws ntawm cov hmoov dawb resin hmoov
Raws li cov khoom siv tseem ceeb hauv kev lag luam, cov hmoov dawb resin yog siv dav hauv cov yas, txheej, cov nplaum thiab lwm yam. Nws cov txheej txheem ntau lawm suav nrog ntau qhov txuas, los ntawm kev xaiv cov khoom siv raw mus rau cov khoom ntim tiav, txhua kauj ruam yuav tsum tau tswj nruj me ntsis kom ntseeg tau tias cov khoom ruaj khov. Kab lus no yuav qhia txog cov txheej txheem tseem ceeb ntawm cov hmoov dawb resin kom ntxaws los pab cov kws kho mob kom nkag siab txog nws cov txheej txheem ntau lawm.
Raw khoom npaj thiab sib tov
Kev tsim cov hmoov dawb resin pib nrog kev npaj cov khoom siv raw. Cov khoom siv tseem ceeb muaj xws li cov khoom siv hluavtaws (xws li polyethylene, polypropylene, thiab lwm yam), cov khoom ntim (xws li calcium carbonate, talcum hmoov), additives (xws li dispersants, stabilizers), thiab lwm yam. Cov khoom siv raw no yuav tsum tau soj ntsuam nruj me ntsis kom ntseeg tau tias qhov purity thiab particle loj raws li qhov yuav tsum tau ua. Tom qab ntawd, cov khoom siv raw yog premixed nyob rau hauv cov khoom sib xyaw ua ke kom ntseeg tau tias cov khoom sib npaug sib npaug, tso lub hauv paus rau kev ua haujlwm tom ntej.
Melting thiab extrusion
Cov khoom sib xyaw ua ke nkag mus rau theem melting. Thaum kub siab (feem ntau yog 150-250 degree), cov ntaub ntawv raw yog melted nyob rau hauv lub extruder los ua ib tug uniform yaj. Lub extruder tag nrho plasticizes cov ntaub ntawv raw los ntawm kev sib hloov thiab shearing txiav txim ntawm cov ntsia hlau, thaum tshem tawm npuas thiab impurities. Cov txheej txheem no yuav tsum muaj kev tswj xyuas qhov kub thiab txias kom ntseeg tau tias cov yaj muaj cov dej ntws nruab nrab thiab tsis txhob degradation lossis agglomeration.
Granulation thiab txias
Cov molten resin yog extruded rau hauv ib daim hlab los ntawm ib tug tuag, thiab ces nkag mus rau hauv lub tank dej txias kom ceev ceev, kom cov resin solidifies rau hauv granules. Cov cua txias ncaj qha cuam tshuam rau qhov nyuaj thiab cov qauv ntawm cov granules, yog li kev ntsuas cua txias yuav tsum tau ua kom ntseeg tau tias cov granules zoo ib yam. Cov granules txias yog lub cev qhuav dej thiab nkag mus rau cov txheej txheem ziab tom ntej.
Crushing thiab tshuaj ntsuam
Cov qhuav resin granules nkag mus rau hauv lub crusher thiab crushed rau hauv hmoov zoo. Lub crushed resin hmoov yuav tsum tau muab graded los ntawm ib tug vibrating screen los yog ib tug airflow screen kom tshem tawm oversized los yog undersized hais kom paub meej tias cov khoom tiav particle loj raws li tus qauv (feem ntau 40-200 mesh). Lub sieved resin hmoov kuj yuav tsum tau kuaj hlau kom tsis txhob muaj impurities.
Kev soj ntsuam zoo thiab ntim khoom
Cov hmoov nplej tiav lawm yuav tsum tau ua ntau yam kev soj ntsuam zoo, suav nrog kev ua kom dawb, zoo, yaj qhov ntsuas, thiab lwm yam, kom ntseeg tau tias nws ua tau raws li cov neeg siv khoom xav tau. Cov khoom tsim nyog thaum kawg raug kaw thiab ntim los ntawm lub tshuab ntim khoom tsis siv neeg, feem ntau hauv cov dej noo- cov ntaub ntawv pov thawj los yog lub hnab ntim kom txo tau cov kab mob thiab nqus dej noo thaum lub sijhawm thauj mus los.
Cov txheej txheem ntau lawm ntawm cov hmoov dawb resin yog qhov nyuaj, tab sis los ntawm kev tswj xyuas nruj thiab cov cuab yeej siv tshuab, cov khoom lag luam tuaj yeem ua kom ruaj khov. Nrog rau kev txhim kho ntawm kev tiv thaiv ib puag ncig, cov txheej txheem yuav ua kom zoo dua yav tom ntej kom txo qis kev siv hluav taws xob thiab pov tseg emissions.
