Kev ceev faj rau kev txhaj tshuaj thib ob
Dec 30, 2023| Feem ntau hais lus, txhawm rau txhim kho adhesion, lub melting kub ntawm cov ntaub ntawv npog yuav tsum yog tib yam li cov khoom siv hauv paus. Yog hais tias lub melting kub ntawm cov ntaub ntawv npog yog tsawg heev, nws yuav tsis yaj lub substrate. Kev sib raug zoo ntawm ob leeg tsis muaj zog txaus. Txawm li cas los xij, yog tias qhov kub ntawm melting kub dhau lawm, cov khoom siv hauv paus yuav muag thiab deform. Hauv qhov xwm txheej hnyav, cov khoom siv npog yuav nkag mus rau hauv cov khoom siv hauv paus, ua rau kev ua haujlwm tsis ua haujlwm. Yog li ntawd, xaiv cov khoom sib txuam yuav ua kom muaj kev sib raug zoo. Feem ntau hais lus, cov ntaub ntawv sib txuam yuav tsum muaj cov tshuaj zoo sib xws lossis muaj cov khoom sib xyaw ua ke.
Thaum cov khoom siv hauv paus thiab cov ntaub npog tsis sib xws, feem ntau tsuas yog cov khoom siv sib cuam tshuam tuaj yeem tsim tau. es tsis yog chemical bonding.
Kev txhaj tshuaj molding ntau yam kuj yuav tsum tau them sai sai rau qee qhov teeb meem, feem ntau muaj xws li:
1. Cov tshuaj lom neeg los yog cov khoom siv sib txuas ntawm cov polymers tsis txaus, thiab cov khoom ntim ntawm ib leeg lossis ntau yam tsis tiav;
2. Flash flash tshwm ntawm ib qho lossis ntau yam khoom siv.
3. Lub tshuab txhaj tshuaj molding yuav tsum tswj kev txhaj tshuaj zoo ib yam.
Tsis tas li ntawd, qhov piv ntawm kev txhaj tshuaj ntim ntawm lub tshuab txhaj tshuaj molding tshuab rau qhov loj ntawm qhov txhaj tshuaj molded ib feem kuj yog ib qho tseem ceeb cuam tshuam rau qhov zoo ntawm kev txhaj tshuaj molding. Qhov piv no yog qhov tseem ceeb rau txhua qhov kev txhaj tshuaj molding, tab sis tseem ceeb tshwj xeeb tshaj yog nyob rau hauv overmolding.
Cov cuab yeej tsis rov qab tuaj yeem cais cov ntaub npog zoo li lub qhov dej nyab. Nws yooj yim dua rau kev khiav lag luam cov cuab yeej tsis rov qab thaum cov ntaub ntawv txhaj tshuaj thib ob yog cov hlau. Txawm li cas los xij, nws yog qhov nyuaj dua rau kev khiav lag luam cov khoom tsis rov qab yog tias nws yog cov khoom siv hlau thiab cov yas ntau dua.