(30) Dawb ciam teb Txhaj Moulding Txheej Txheem Tsis Zoo Los Ntawm Txhais Tes

Dawb ntug yog ib qho kev txhaj tshuaj tshwj xeeb ntawm kev hloov kho polyethylene thiab plexiglass, uas feem ntau tshwm sim ntawm ntug ntawm qhov chaw ua haujlwm ze ntawm qhov chaw. Lub ntug dawb yog ib qho sib sau ua ke ntawm ntau qhov ncab taw qhia cov molecules perpendicular rau cov kev taw qhia ntawm cov khoom ntws thiab qhov kev ncua deb ntawm lawv. "Tam sim no tseem muaj cov txheej txheem sib txuas polymer nyob rau hauv cov kev taw qhia ntawm ntug dawb, yog li cov ntug dawb tseem tsis tau tawg. Nyob rau hauv cov cua sov tsim nyog, nws muaj peev xwm rov qab tau cov curled lub xeev ntawm stretch oriented molecules thiab ua rau cov ntug dawb. pab."
Kev daws:
(1) Thaum lub sij hawm tsim khoom, kev saib xyuas yuav tsum tau them nyiaj rau kev tswj kom muaj kev sib raug zoo ntawm qhov sib cais ntawm cov qauv, tshwj xeeb tshaj yog nyob rau hauv cheeb tsam nyob ib ncig ntawm lub pwm kab noj hniav, uas yuav tsum tau nyob rau hauv ib tug tiag tiag pwm locking quab yuam kom tsis txhob longitudinal thiab lateral pwm. nthuav dav.
(2) Txo kev txhaj tshuaj siab, lub sijhawm, thiab cov khoom ntim, txo cov kev taw qhia ntawm molecular.
(3) Siv tus neeg sawv cev oily tso rau ntawm ntug dawb ntawm cov pwm saum npoo, ntawm ib sab, ua rau nws nyuaj rau kev hloov mus rau qhov kub ntawm qhov chaw no, tuav lub sijhawm kub kub ntev dua, thiab ntawm qhov tod tes, inhibits qhov tshwm sim tshwm sim. ntawm cov npoo dawb.
(4) Txhim kho pwm tsim. Piv txwv li, siv cov ntaub ntawv nrog me me elastic deformation los ua pwm, ntxiv dag zog rau cov neeg kho tshuab bearing muaj peev xwm ntawm cov kab noj hniav sidewalls thiab hauv qab daim hlau los tiv thaiv lub siab-pressure cuam tshuam thaum txhaj tshuaj thiab qhov kub thiab txias thaum lub sij hawm ua hauj lwm txheej txheem, muab siab dua kub them rau. cov cheeb tsam uas muaj cov npoo dawb, hloov cov kev taw qhia ntawm cov khoom ntws, thiab ua kom cov dej ntws hauv cov kab noj hniav tsim nyog.
(5) Xav txog kev refueling.
Hoarfrost
Thaum demolding ib co polystyrene cov khoom, ib txheej nyias ntawm dawb te zoo li cov khoom yog pom nyob rau hauv lub zos nto ze ntawm qhov chaw, thiab feem ntau ntawm nws yuav raug tshem tawm tom qab polishing. Cov dej khov dawb zoo li cov tshuaj no tuaj yeem txuas mus rau saum npoo ntawm cov pwm kab noj hniav, vim yog tsim cov khoom tsis haum lossis cov khoom hnyav uas tsis muaj molecular additives hauv cov khoom siv yas hauv lub xeev gaseous tom qab tau rhuab, uas tau tso tawm los ntawm cov yas yaj, thiab raug yuam mus rau hauv pwm kab noj hniav nyob ze ntawm qhov chaw parting nrog cov nyhuv tso tawm, precipitating los yog crystallizing. Cov dej khov dawb no zoo li hmoov thiab nplej ua raws li cov pwm saum npoo, tsis tsuas yog khawb qhov tom ntej demolding, tab sis kuj cuam tshuam qhov smoothness ntawm pwm nto yog tias muaj pes tsawg zaus ntxiv. Insoluble fillers thiab colorants feem ntau tsis cuam tshuam nrog cov tsos ntawm hoarfrost. Kev daws rau hoarfrost: Txhim kho qhov ziab ntawm cov khoom siv raw, txo qhov kub ntawm molding, ntxiv dag zog rau cov pwm, txo qhov feem ntawm cov khoom siv rov ua dua, thiab lwm yam. Thaum hoarfrost tshwm sim, xyuam xim tshwj xeeb rau kev tu cov pwm saum npoo tsis tu ncua.