Kev tshuaj xyuas cov kauj ruam tseem ceeb thiab cov yam ntxwv ntawm cov kua silicone overmolding txheej txheem

Hauv kev tsim khoom niaj hnub no, kua roj hmab silicone (LSR) overmolding yog qhov kev xaiv tseem ceeb rau kev tsim cov khoom lag luam vim nws qhov tshwj xeeb zoo. Cov txheej txheem no optimizes cov khoom ua haujlwm thiab kev ua tau zoo los ntawm kev sib txuas ua kua silicone nrog lwm cov substrates (xws li yas thiab hlau). Cov kev ntsuam xyuas hauv qab no yuav tsom mus rau cov kauj ruam tseem ceeb thiab cov yam ntxwv tseem ceeb ntawm lub tshuab no.

Cov kauj ruam tseem ceeb hauv Liquid Silicone Overmolding

Substrate Pretreatment

Thawj kauj ruam hauv overmolding yog substrate pretreatment. Lub substrate feem ntau yog engineering plastics (xws li PC, PA) lossis hlau qhov chaw, yuav tsum tau ntxuav, ziab, thiab ua kom lub ntsej muag. Kev ua kom lub ntsej muag tuaj yeem ua tiav los ntawm kev kho ntshav plasma lossis ib qho tshwj xeeb primer los txhim kho qhov adhesion ntawm cov kua silicone thiab cov substrate.

Pwm Tsim thiab Kev Npaj Txhaj Tshuaj

Cov kua silicone overmolding yuav tsum muaj pwm precision. Cov pwm xav tau lub qhov dej zoo-tsim tus khiav thiab lub tshuab ua pa kom ntseeg tau tias cov khoom ntim ntawm silicone thiab tsis txhob muaj cua npuas lossis cov khoom tsis txaus. Tib lub sijhawm, cov pwm feem ntau xav tau cov cua sov kom tswj tau qhov kub ntawm vulcanization.

Txhaj thiab Vulcanization txheej txheem

Cov kua silicone yog sib xyaw siv ob - cov khoom ntsuas ntsuas, txhaj rau hauv pwm, thiab tom qab ntawd coats substrate. Thaum lub sij hawm txhaj tshuaj molding, qhov kub thiab txias yuav tsum tau tswj kom meej: cov pwm kub yog feem ntau tswj ntawm 130℃thiab 150℃kom tso cai rau cov silicone kom sai li sai tau ib tug vulcanization thiab ntoo khaub lig- txuas cov tshuaj tiv thaiv tom qab sau. Vulcanization lub sij hawm nyob ntawm qhov tuab ntawm ib feem, feem ntau siv los ntawm ob peb feeb mus rau ob peb feeb.

Cooling thiab Demolding

Tom qab vulcanization, ib feem nkag mus rau theem txias. Vim qhov tsawg coefficient ntawm thermal expansion ntawm cov kua silicone, deformation yog tsawg heev thaum txias. Tom qab demolding, kev ua haujlwm theem nrab feem ntau tsis tsim nyog, thiab nws tuaj yeem ncaj qha mus rau theem tshuaj ntsuam.

Cov yam ntxwv ntawm Liquid Silicone Overmolding Technology

Zoo Sealing thiab Flexibility

Cov kua silicone muaj cov elasticity siab thiab tsis tshua muaj compression txheej, ua rau nws tsim nyog rau kev tsim cov khoom uas yuav tsum tau ntev - lub sij hawm sealing (xws li waterproof connectors thiab kho mob sealing rings). Nws qhov kev hloov pauv kuj tseem txhim kho qhov kev xav thiab kev nplij siab ntawm cov khoom, thiab nws tau siv dav hauv cov neeg siv khoom siv hluav taws xob thiab cov khoom siv hnav.

Stable tshuaj thiab kub ua hauj

Cov kua silicone tuaj yeem tiv taus qhov kub ntawm -50℃txog 200℃thiab nthuav tawm cov tshuaj tiv thaiv zoo (xws li ozone, tsis muaj zog acids, thiab tsis muaj zog alkalis). Cov yam ntxwv no ua rau nws haum rau ib puag ncig hnyav xws li cov khoom siv hauv lub cav tsheb thiab cov khoom siv kho mob kom tsis muaj menyuam.

Ua tau zoo ntau lawm voj voog

Cov kua silicone tau dhau los ua cov tshuaj vulcanization sai thiab tshem tawm qhov xav tau ua ntej - tsim thiab xa tawm - kho cov theem pom nyob rau hauv cov txheej txheem roj hmab ib txwm, yog li ua kom luv lub voj voog ntau lawm. Ua ke nrog automated metering thiab txhaj tshuaj molding khoom, nws enables siab - ntim nruam ntau lawm.

Kev tiv thaiv ib puag ncig thiab kev nyab xeeb

Cov kua silicone yog dawb ntawm cov yas thiab halogens, ua tau raws li cov cai tswj kev lag luam hauv kev lag luam kev kho mob thiab zaub mov. Nws cov txheej txheem kho tau tso tawm tsis muaj cov khoom lag luam, ua rau nws tus phooj ywg ib puag ncig thiab tus neeg teb xov tooj - tus phooj ywg.

Xaus

Liquid silicone overmolding yog ib qho cuab yeej siv rau kev tswj xyuas meej thiab cov khoom siv. Los ntawm optimizing pwm tsim, txheej txheem tsis, thiab kev kho substrate, tuam txhab uas muag tuaj yeem ruaj khov tsim cov khoom sib xyaw ua ke thiab kev ntseeg tau. Nyob rau hauv lub neej yav tom ntej, nrog rau kev txhim kho ntxiv ntawm cov khoom tsim thiab cov khoom precision, cov txheej txheem no yuav ua lub luag haujlwm tseem ceeb dua hauv kev tsim khoom siab - kawg.