Tej yam tsis xws luag thiab kev txhim kho kev daws teeb meem hauv LSR Liquid Silicone Encapsulation ntawm PC txheej txheem
Tso lus
LSR (liquid silicone) txheej PC (polycarbonate) yog dav siv hauv electronics, automotive, thiab lwm yam kev lag luam, tab sis tsis xws li adhesion tsis zoo, deg tsis zoo, thiab seem deviations feem ntau tshwm sim nyob rau hauv tiag tiag ntau lawm. Cov hauv qab no yog cov teeb meem tshwm sim thiab kev txhim kho cov kev daws teeb meem: Dab tsi yog qhov teeb meem ntawm cov khoom siv silicone txheej?
I. Kev adhesion tsis zoo lossis delamination
Ua rau
1. PC deg paug: Roj, plua plav, lossis pwm tso tawm tus neeg sawv cev residue ntawm lub PC nto cuam tshuam kev sib cuag ntawm cov kua silicone thiab PC.
2. Lub zog nto tsis txaus: PC yog cov khoom siv tsis yog -polar nrog lub zog qis, ua rau nws nyuaj rau cov kua silicone kom kis tau thiab ua raws li nws qhov chaw.
3. Cov khoom siv tsis zoo: Cov khoom siv tshuaj lom neeg ntawm cov kua silicone thiab PC sib txawv heev, ua rau muaj kev sib txuas tsis muaj zog.
4. Cov txheej txheem txhaj tshuaj tsis raug: Tsis txaus txhaj tshuaj kub, siab, lossis tuav lub sijhawm tiv thaiv cov silicone los ntawm tag nrho cov micropores ntawm lub PC nto.
Txhim kho kev daws teeb meem
1. Ntxuav lub PC nto: So lub PC nto nrog cov kuab tshuaj organic xws li cawv lossis acetone kom tshem tawm cov roj thiab hmoov av . 1. Yog tias cov pwm tso tawm cov residue tseem nyob rau saum npoo, nws yuav tsum tau kho nrog tus neeg saib xyuas tshwj xeeb.
2. Kev Kho Hniav Hloov Kho: Cov pawg Polar tau nkag mus rau hauv PC nto los ntawm kev kho ntshav ntshav, kho corona, lossis kev kho tshuaj lom neeg kom nce qhov roughness thiab txhim kho lub zog adhesion.
3. Kev xaiv cov khoom siv silicone nrog kev sib raug zoo: Cov khoom siv silicone ua kua nrog qhov zoo tshaj plaws adhesion rau PC yog xaiv los ntawm kev sim, thiab cov khoom siv sib xyaw ua ke lossis cov khoom sib txuas tau ntxiv los txhim kho kev sib txuas ntawm kev sib txuas.
4. Kev ua kom zoo ntawm Kev Txhaj Tshuaj Molding Txheej Txheem:
• Txhaj Kub: Ua kua silicone txhaj tshuaj kub 120-180 degree, PC preheating kub 80-100℃.
• Txhaj Siab: 30-80MPa, kom ntseeg tau tias silicone tag nrho encapsulates lub PC.
• Lub Sijhawm Tuav: 5-15 vib nas this, tso cai rau cov silicone kom ruaj khov thiab teeb tsa hauv pwm.
Liquid Silicone-Encapsulated PC Txhaj Moulding Chaw tsim tshuaj paus
II. Defects (piv txwv li, npuas, impurities)
Ua rau Analysis
1. Kev ua pa tsis zoo: Ib qho pwm tsis tsim nyog venting qauv tsim tiv thaiv npuas los ntawm kev khiav.
2. Rubber Contamination: Roj los yog roj paug nyob rau hauv cov yeeb nkab txhaj tshuaj los yog pwm ua rau cov qauv vulcanization ntawm silicone.
3. Kev sib xyaw tsis sib xws: Kev sib xyaw tsis sib xws ntawm A / B cov khoom ntawm cov kua silicone ua rau kev kho tsis tiav hauv qee qhov chaw.
Txhim kho kev daws teeb meem
1. Optimize Venting Design: Tsim cov venting raws qhov kawg ntawm cov khoom; siv hauv - pwm tshuab nqus tsev yog tsim nyog.
2. Pwm thiab cov kav dej huv huv: Tsis tu ncua ntxuav cov pwm thiab cov kav dej nrog toluene kom tsis txhob muaj roj paug.
3. Ua kom muaj kev sib xyaw ua ke: Siv cov txheej txheem sib xyaw los ntawm cov chaw tsim khoom lag luam, kho cov agitator ceev thiab siab, thiab ntxiv cov kauj ruam sib xyaw yog tias tsim nyog.
III. Dimensional Deviation los yog Deformation
Ua rau Analysis
1. Tsawg Deformation Kub ntawm Embedded Cheebtsam: Lub deformation kub ntawm PC yog qis dua vulcanization kub ntawm cov kua silicone, ua rau PC deform thaum lub sij hawm vulcanization.
2. Kev ntxhov siab tsis sib xws ntawm Cov Cheebtsam Embedded: Qhov chaw tsis ruaj khov ntawm PC hauv pwm ua rau muaj kev ntxhov siab tsis sib xws ntawm qhov chaw sib khi.
3. Cov qauv khoom tsis tsim nyog: Cov khoom siv silicone muaj cov qauv tsis sib xws, nrog rau qee qhov chaw yog tuab lossis nyias dhau.
Txhim kho kev daws teeb meem
1. Hloov nrog cov khoom siv kub ntawm - kub resistant: Xaiv cov khoom siv PC nrog lub deformation kub siab tshaj qhov kub ntawm cov kua silicone.
2. Kho cov ntsiab lus kev ntxhov siab ntawm cov khoom embedded: Ua kom ruaj khov thiab txhim khu kev qha ntawm PC hauv pwm, nrog kev sib npaug ntawm kev ntxhov siab.
3. Txhim kho cov qauv khoom zoo: Ua kom cov qauv silicone feem zoo ib yam, tsis txhob muaj cov cheeb tsam uas tuab dhau los yog nyias.
IV. Kev kho tsis tiav
Ua rau Analysis
1. Kub qis heev: Vulcanization kub hauv qab 110-150℃cuam tshuam rau curing nyhuv.
2. Lub sij hawm vulcanization tsis txaus: lub sij hawm vulcanization luv dhau, tiv thaiv kev kho kom tiav.
3. Roj hmab compound kub tsawg dhau: Siv cov roj hmab hauv tub yees ncaj qha ntawm qhov kub thiab txias dhau los cuam tshuam rau kev kho.
Txhim kho kev daws teeb meem
1. Ua kom pwm kub: Saib xyuas cov pwm kub thiab ua kom nws tsim nyog rau qhov tsim nyog.
2. Nthuav lub sij hawm vulcanization: Txuas lub sij hawm vulcanization raws li qhov tseeb.
3. Preheating Adhesive Compound: Cov nplaum nplaum rau hauv tub yees yuav tsum tau tso cai rau sawv ntsug ntawm chav tsev kub rau lub sijhawm ua ntej siv.
V. Xim txawv los yog pob
Ua rau Analysis
1. Kev sib xyaw xim tsis sib xws: Kev sib xyaw tsis sib xws ntawm cov xim thiab silicone ua rau cov xim tsis sib xws.
2. Kev sib kis ntawm Adhesive Compound lossis Pwm: Impurities hauv cov nplaum nplaum los yog pwm cuam tshuam rau cov khoom xim.
Txhim kho kev daws teeb meem
1. Hloov Xim Xim: Siv cov xim uas muab los ntawm cov chaw tsim khoom nplaum kom ntseeg tau tias sib xyaw ua ke.
2. Pwm huv thiab nplaum nplaum: ntxuav cov pwm tsis tu ncua thiab siv cov nplaum nplaum rau kev tsim khoom.
VI. Yooj yim Demolding lossis khoom puas
Ua rau Analysis
1. Kev siv tsis raug tso tawm tus neeg sawv cev: Tus neeg tso tawm tso tawm cov tshuaj tiv thaiv nrog cov nplaum, ua rau kev sib txuas tsis ua haujlwm.
2. Pwm tsim tsis txaus: Tsis txaus precision lossis hnav ntawm cov pwm parting nto ua rau nyuaj rau demolding.
Txhim kho kev daws teeb meem
1. Hloov Tus Neeg Saib Xyuas Tso Tawm: Xaiv tus neeg sawv cev tso tawm sib haum nrog cov nplaum, lossis txo kev siv tus neeg tso tawm.
2. Txhim kho pwm precision: Txhim kho pwm machining precision, ntxiv grooves overflow, thiab zam flash.
VII. Tsawg ntau lawm efficiency
Ua rau kev tsom xam
1. Lub sij hawm vulcanization ntau dhau: Kev tswj tsis raug ntawm qhov kub thiab txias los yog lub sij hawm ua rau kev ua haujlwm qis.
2. Cov txheej txheem tsis ruaj khov: Cov kev hloov pauv loj hauv kev txhaj tshuaj molding tsis ua rau cov khoom tsim nyog tsawg.
Txhim kho kev daws teeb meem
1. Txhim kho qhov kho kom zoo: Txiav txim siab qhov zoo tshaj plaws kho qhov kub thiab lub sij hawm los ntawm kev sim los txhim kho kev tsim khoom.
2. Stabilize tus txheej txheem tsis: Txais PID qhov kub thiab txias tswj qhov system kom paub meej pwm kub hloov pauv tsawg dua ± 1 degree, txhim kho cov txheej txheem ruaj khov.
