(21) Lub rooj vag thaj tsam qhov tsis xws luag Txhaj Molding Txheej Txheem Tsis Zoo Los Ntawm Txhais Tes

1. Lub teeb ci
Nyob rau hauv kev tsim ntawm lub rooj vag taw tes perpendicular mus rau cov kev taw qhia ntawm lub workpiece, ib tug hluav taws xob system muaj xws li sib txawv xim qhov tob thiab gloss, hu ua ib tug ray ntawm lub teeb, tshwm nyob rau saum npoo ntawm lub workpiece thaum lub sij hawm txhaj tshuaj molding, nrog lub rooj vag raws li qhov chaw. Feem ntau muaj peb qhov kev ua, kab tsaus nyob rau tom qab tsaus ntuj, tsaus kab ntawm cov kab tsaus nti, thiab cov kab tsaus thiab dawb tsaus nyob ib ncig ntawm lub rooj vag.
Feem ntau ntawm cov teeb meem no tshwm sim thaum lub sij hawm txhaj tshuaj ntawm polystyrene thiab hloov polystyrene sib tov, thiab muaj feem xyuam rau cov hauv qab no: qhov sib txawv ntawm rheology thiab colorability ntawm ob cov ntaub ntawv, thiab qhov sib txawv ntawm cov nqi ntws thiab cua kub ntawm lub laminar thiab turbulent txheej ntawm lub rooj vag. qhov system; Qhov tsim ntawm charred filaments los ntawm yas vim thermal decomposition; Kev cuam tshuam ntawm cov tshuaj gaseous thaum txhaj tshuaj molding ntawm plastics.
Kev daws:
(1) Thaum siv cov yas sib xyaw, nws yog ib qho tsim nyog yuav tsum sib tov cov yas kom zoo, thiab qhov loj me ntawm cov yas yuav tsum zoo ib yam thiab sib xws.
(2) Cov yas thiab cov xim pleev xim yuav tsum sib tov sib npaug, thiab cov dispersants tsim nyog yuav tsum tau ntxiv yog tias tsim nyog, thiab sib xyaw ua ke.
(3) Lub plasticization yuav tsum ua kom tiav, thiab kev ua haujlwm ntawm lub tshuab yuav tsum zoo.
(4) Txo qhov kev txhaj tshuaj siab thiab ceev, txo qhov kev txhaj tshuaj thiab lub sijhawm tuav lub sijhawm, nce pwm kub, nce qhov kub ntawm lub taub hau, thiab txo qhov kub ntawm qhov cub.
(5) Molten cov ntaub ntawv thiab coking tshuaj uas tiv thaiv degradation ntawm plastics thiab ua rau kom viscosity: Nco ntsoov tias cov ntsia hlau thiab chim yog
Txawm hais tias muaj kev hnav thiab tsim kua muag, los yog cov cua sov tsis muaj kev tswj hwm, lossis kev ua haujlwm tsis raug ua rau cov cua sov mus ntev thiab decomposition ntawm cov yas. Sab hauv ntawm cov ntsia hlau thiab qhov kawg ntawm lub thoob tuaj yeem polished.
(6) Txhim kho lub rooj vag tsim, xws li nthuav lub rooj vag txoj kab uas hla, hloov lub rooj vag txoj hauj lwm, hloov lub rooj vag mus rau ib tug fillet hloov, sim ua kom sov lub rooj vag nyob rau hauv lub zos, thiab ntxiv ib tug txias qhov chaw ntawm lub runner kawg.