PC / ABS yog qhov tseem ceebkhoom sivntawm tsheb sab hauv kho kom zoo nkauj thiab hluav taws xob hluav taws xob thiab lub plhaub hluav taws xob muaj qhov zoo uas tsis tuaj yeem hloov tau. Txawm li cas los xij, nyob rau hauv cov txheej txheem kev txhaj tshuaj molding, nws yog ib qho yooj yim uas ua rau tev qhov xwm txheej ntawm cov khoom lag luam vim cov khoom tsis raug nws tus kheej, pwm tsim thiab txheej txheem txhaj tshuaj molding.
Cia' s thawj saib cov lus piav qhia ntawm cov pob txha yaj: cov polymer hauv yas extrusion lossis txhaj tshuaj molding muaj qhov chaw du thiab cov duab tsis zoo thaum cov kua txiab shear tus nqi tsawg. Thaum shear tus nqi lossis shear kev ntxhov siab nce mus rau ib qho nqi, qhov saum npoo ntawm extrudate yuav poob luster thiab lub nplaim yuav ntxhib; thaum extrusion tus nqi ntawm cov yas nce ntxiv, yuav muaj ntau lub taub hau tsis xwm yeem, ntswj lossis zawv cov kab nyob rau saum npoo ntawm extrudate, thiab txawm tias sib cais thiab tawg ua rau cov tawg lossis cov kem, uas yog hu ua" melt tawg" ;.
Daim duab: tev tawv yas
Cov kev tshwm sim no qhia tau tias qhov kev cuam tshuam me me los ntawm ntau yam tshwm sim raug khi los ntawm yaj ntawm qhov kev txiav siab tsawg lossis tus nqi, tab sis nws nyuaj rau kev txwv qhov cuam tshuam hauv cov kua dej ntawm qhov siab shear kev nyuaj siab lossis tus nqi thiab tsim mus rau kev tsis ruaj khov; thaum ib qho tseem ceeb heev shear kev nyuaj siab tau mus txog, nws yuav ua rau qhov tawg ntawm ntws yaj.
Nyob rau hauv dav dav, thaum shear tus nqi ntawm yaj yog ntau tshaj 50000, PC / ABS cov ntaub ntawv yuav raug nquag tev tawm. Ntxiv rau, dab tsi lwm yam yuav cuam tshuam tev ntawm txhaj tshuaj pwm ua haujlwm?
Qhov zoo tshaj yuav cov khoom siv
Piv nrog rau lwm cov ntaub ntawv, txheej txheem ob-theem ntawm PC thiab ABS yog qhov cuam tshuam ntau rau cov kua txau thiab sib cais nyob rau hauv siab shear, uas ua rau tev pom tshwm sim. Rau cov PC / ABS cov ntaub ntawv, PC thiab ABS yog ib nrab tshaj, yog li nws yog qhov yuav tsum tau los ntxiv cov khoom siv haum tsim nyog hauv kev hloov kho txhawm rau txhim kho nws cov kev siv tau. Tau kawg, peb yuav tsum tau tshem tawm qhov ua kom tawv nqaij tshwm sim los ntawm kev sib tov.
Pwm yam
Lub hauv paus ntsiab lus ntawm kev tsim qauv tuag yuav tsum ua raws cov kev taw qhia ntawm txo qis shear. Feem ntau hais lus, cov khoom siv nrog cov ntawv nyeem ntom ntom yog qhov nrawm dua rau tev tawm (vim los ntawm kev sib txhuam thiab shear ntawm yaj hauv cov kab noj hniav thiab sab hauv phab ntsa ntawm kab noj hniav thaum lub nrawm nrawm); tib lub sijhawm, hauv qhov rooj laj kab tsim, yog tias lub rooj vag loj me me, nws yuav ua rau cov plaub yaj ntau dhau thaum lub hmoov yaj hla ntawm lub rooj vag, thiab tom qab ntawd ua rau tev ntawm cov khoom saum npoo.
Cov yam ntxwv thev naus laus zis
Cov kev taw qhia tseem ceeb yog kom tsis txhob ntau dhau shear. Thaum nws nyuaj rau kev sau cov khoom, kev kub ceev thiab kev kub siab tuaj yeem siv los txhim kho. Txawm li cas los xij, kev kub ceev thiab kev kub siab yuav ua rau ntau dhau ntawm shear quab yuam ntawm yaj ntawm lub rooj vag I, thiab shear nruab nrab ntawm yaj thiab sab hauv phab ntsa pwm thiab ntawm txheej txheej thiab tawv txheej yuav nce siab. Yog li ntawd, nyob rau hauv cov txheej txheem kev txhaj tshuaj tiag tiag, peb kuj tuaj yeem txiav txim siab nce kev txhaj tshuaj tiv thaiv kub / pwm kub thiab txhim kho cov khoom siv fluidity kom txo cov ndlwg tsis txaus nyob rau hauv cov txheej txheem kev tiv thaiv tiag tiag kom tsis txhob muaj ntau dhau shear vim muaj kev kub ceev thiab siab.
