Nyob rau hauv cov txheej txheem ntawm tshuab pwm ua, cov yam tseem ceeb uas yuav cuam tshuam rau cov khoom feem ntau suav nrog tshuab siab, tshuab ceev, tshuab piv thiab tshuab pwm kub.
Tshuab moulding pwm ua
1. Nyob rau hauv tus txheej txheem ntawm tshuab, compressed cua muaj ob lub zog: ib tug yog siv lub siab ntawm compressed cua kom lub semi-molten tube billet tshuab thiab cling rau pwm kab noj hniav phab ntsa tsim cov yam xav tau;Thib ob, nws ua lub luag haujlwm txias hauv Dongguan tshuab moulding khoom.Huab cua siab nyob ntawm hom yas thiab qhov kub thiab txias, feem ntau tswj hauv 0.2 ~ 1.0mpa.Rau cov yas uas muaj viscosity tsawg thiab yooj yim deformation (xws li PA thiab HDPE), siv tus nqi qis dua;Rau cov yas uas muaj cov viscosity ntau dua (xws li PC), cov nqi siab dua raug coj mus, thiab yog li cov phab ntsa thickness ntawm cov billet.Tshuab siab kuj muaj feem xyuam rau lub ntim ntawm cov khoom, cov khoom ntim loj yuav tsum siv lub tshuab siab dua, cov khoom ntim me me yuav tsum siv lub tshuab me me.Qhov zoo tshaj plaws tshuab siab yuav tsum muaj peev xwm ua kom cov tsos thiab cov qauv ntawm cov khoom ntshiab tom qab tsim.
2, tshuab ceev kom luv lub tshuab lub sij hawm, thiaj li hais tias nws yog conducive rau cov khoom kom tau ib tug ntau uniform thickness thiab zoo tsos, qhov yuav tsum tau ntawm tsawg txaus ceev mus rau hauv lub loj khiav ntawm huab cua, xyuas kom meej tias lub billet nyob rau hauv lub pwm kab noj hniav tuaj yeem ua tau zoo, nthuav dav sai, txo lub sijhawm txias hauv pwm kab noj hniav, thiab yog qhov tsim nyog los txhim kho kev ua haujlwm ntawm cov khoom.Qhov qis airflow tshaj tawm kuj tuaj yeem zam tau ib yam ntawm Venduri nyhuv nyob rau hauv lub billet thiab tsim ntawm lub tshuab nqus tsev hauv zos, kom lub billet deflated phenomenon.Qhov no tuaj yeem ua kom ntseeg tau los ntawm kev siv lub tshuab tshuab loj dua.
3, tshuab piv thaum qhov loj thiab qhov zoo ntawm lub billet yog qhov tseeb, qhov loj ntawm qhov loj ntawm cov khoom, qhov loj dua qhov sib piv ntawm cov billet tshuab, tab sis qhov thinner lub thickness ntawm cov khoom.Feem ntau raws li hom yas, xwm, cov duab thiab qhov loj ntawm cov khoom, thiab qhov luaj li cas ntawm cov billet los txiav txim qhov loj ntawm lub tshuab tshuab.Nrog rau qhov nce ntawm qhov sib piv, lub thickness ntawm cov khoom yuav thinner, thiab lub zog thiab nruj yuav txo.Nws kuj ua nyuaj rau kev tsim.Feem ntau, qhov sib piv tshuab yog tswj hauv l
2-4) ib.
4. Qhov kub ntawm lub tshuab moulding pwm muaj kev cuam tshuam zoo rau cov khoom zoo (tshwj xeeb tshaj yog cov tsos zoo).Feem ntau cov pwm kub faib yuav tsum tsis sib xws, kom deb li deb tau los ua kom cov khoom sib xws.Cov pwm kub muaj feem xyuam rau hom yas, thickness thiab loj ntawm cov khoom.Rau ntau hom yas, muaj ob peb yas (PC tshuab moulding lub raj mis) pwm kub yuav tsum tau tswj nyob rau hauv seem.
Kev xyaum ntau lawm tau ua pov thawj tias cov pwm kub qis dhau lawm, tom qab ntawd qhov elongation ntawm cov yas ntawm qhov clip yog txo, nws tsis yooj yim rau tshuab, yog li cov khoom yog thickened nyob rau hauv seem no, thiab nws yog ib qho nyuaj rau tsim, thiab lub contour thiab qauv ntawm cov khoom nto tsis meej;Cov pwm kub siab dhau lawm, lub sijhawm txias txias yog qhov ntev, lub voj voog ntau lawm, thiab cov khoom tsim tau qis dua.Nyob rau lub sijhawm no, yog tias qhov txias txias tsis txaus, nws tseem yuav ua rau cov khoom demoulding deformation, tus nqi shrinkage yog nce, thiab cov luster saum npoo yog qhov phem dua.Feem ntau rau cov yas uas loj dua molecular saw rigidity, pwm kub yuav tsum siab dua;Rau cov yas nrog cov saw hlau hloov pauv loj dua, cov pwm kub yuav tsum raug txo.
Hollow tshuab moulding cov khoom nyob rau hauv lub pwm txias lub sij hawm ntev, lub hom phiaj yog los xyuas kom meej tias cov khoom siab txias, demoulding tsis deformation.Lub sij hawm txias feem ntau nyob ntawm qhov tuab, qhov loj thiab cov duab ntawm cov yas, nrog rau hom yas.Lub phab ntsa tuab dua, lub sijhawm txias dua.Lub sijhawm txias ntawm 61PE cov khoom lag luam nrog lub peev xwm kub tshwj xeeb yog ntev dua li ntawm PP cov khoom uas muaj peev xwm me me ntawm cov phab ntsa tuab.
5. Moulding voj voog tshuab moulding ntau lawm lub voj voog muaj xws li extrusion billet, tuag kaw, txiav billet, tshuab, deflating, qhib pwm, tshem tawm cov khoom thiab lwm yam txheej txheem.Lub hauv paus ntsiab lus ntawm kev xaiv lub voj voog no yog kom luv kom deb li deb tau raws li qhov ua tau kom ntseeg tau tias cov khoom tuaj yeem ua tau zoo li tsis muaj deformation, txhawm rau txhim kho kev tsim khoom.
Post lub sij hawm: Aug-31-2022