Txhaj tshuaj molding tshuab (txheej molding tshuab los yog txhaj molding tshuab luv luv) yog lub ntsiab molding khoom uas ua rau cov thermoplastic los yog thermosetting cov ntaub ntawv rau hauv cov khoom yas ntawm ntau yam duab siv yas molding pwm.Kev txhaj tshuaj molding yog pom tau los ntawm kev txhaj tshuaj molding tshuab thiab pwm.
Nov yog qee cov txheej txheem txhaj tshuaj molding uas cuam tshuam rau lub zog ntawm kev txhaj tshuaj molded qhov chaw:
1. Kev txhaj tshuaj siab tuaj yeem txhim kho lub zog tensile ntawmPP txhaj molded qhov chaw
PP cov ntaub ntawv yog elastic dua li lwm cov khoom siv roj hmab tawv, yog li qhov ceev ntawm kev txhaj tshuaj molded qhov chaw yuav nce nrog kev nce siab, uas yog qhov pom tseeb.Thaum qhov ntom ntawm cov khoom yas nce, nws lub zog tensile yuav nce, thiab rov ua dua.
Txawm li cas los xij, thaum qhov ceev tau nce mus rau qhov siab tshaj plaws uas PP nws tus kheej tuaj yeem ncav cuag, lub zog tensile yuav tsis nce ntxiv yog tias lub siab nce ntxiv, tab sis yuav ua rau kom cov seem sab hauv kev ntxhov siab ntawm cov tshuaj molded qhov chaw, ua rau cov tshuaj molded qhov chaw nkig. , yog li nws yuav tsum tau nres.
Lwm cov ntaub ntawv muaj qhov xwm txheej zoo sib xws, tab sis qhov pom tseeb degree yuav txawv.
2. Pwm tshav kub hloov roj txhaj tshuaj tuaj yeem txhim kho lub zog ntawm Saigang qhov chaw thiab nylon qhov chaw
Nylon thiab POM cov ntaub ntawv yog crystalline plastics.Cov pwm yog txhaj nrog cov roj kub thauj los ntawm lub tshuab roj kub, uas tuaj yeem ua kom txias txias ntawm qhov txhaj tshuaj molded qhov chaw thiab txhim kho cov crystallinity ntawm cov yas.Nyob rau tib lub sijhawm, vim qhov txias txias qeeb, qhov seem sab hauv kev ntxhov siab ntawm kev txhaj tshuaj molded qhov chaw kuj raug txo.Yog li ntawd, kev cuam tshuam tsis kam thiab tensile lub zog ntawm lubnylon thiab POM qhov chawtxhaj nrog cov roj kub lub cav hluav taws xob hloov roj yuav raug txhim kho raws li.
Nws yuav tsum tau muab sau tseg tias qhov ntev ntawm nylon thiab POM qhov chaw molded nrog cov roj kub thauj los ntawm lub tshuab roj kub yog txawv me ntsis ntawm cov molded nrog dej thauj, thiab cov nylon qhov chaw yuav loj dua.
3. Melting ceev ceev heev, txawm tias 180 ℃ yog siv rau kev txhaj tshuaj molding, cov kua nplaum yuav raw
Feem ntau, cov khoom siv 90 degree PVC yog txhaj ntawm 180 ℃, thiab qhov kub thiab txias txaus, yog li qhov teeb meem ntawm cov roj hmab nyoos feem ntau tsis tshwm sim.Txawm li cas los xij, feem ntau yog vim li cas tsis nyiam tus neeg teb xov tooj, lossis txhob txwm ua kom nrawm nrawm ntawm cov kua nplaum kom nrawm nrawm, kom cov ntsia hlau rov qab sai heev.Piv txwv li, nws tsuas yog siv ob los yog peb vib nas this rau cov ntsia hlau rov qab mus rau ntau tshaj li ib nrab ntawm qhov siab tshaj plaws ntawm cov kua nplaum melting.Lub sijhawm rau cov khoom siv PVC kom sov thiab nplawm yog qhov tsis txaus, uas ua rau muaj teeb meem ntawm cov kua nplaum tsis sib xws thiab cov roj hmab sib xyaw ua ke, lub zog thiab lub zog ntawm kev txhaj tshuaj molded qhov chaw yuav ua tsis zoo.
Yog li ntawd, thaumtxhaj cov ntaub ntawv PVC, koj yuav tsum tau ceev faj tsis txhob arbitrarily kho qhov ceev ntawm cov nplaum nplaum rau ntau tshaj 100 rpm.Yog tias nws yuav tsum tau hloov kho sai heev, nco ntsoov nce cov khoom kub ntawm 5 mus rau 10 ℃, lossis ua kom rov qab siab ntawm cov nplaum nplaum kom tsim nyog rau kev koom tes.Nyob rau tib lub sijhawm, ua tib zoo saib xyuas seb puas muaj teeb meem nrog cov roj hmab nyoos, txwv tsis pub nws yuav ua rau poob loj heev.
Lub sij hawm xa tuaj: Nov-11-2022