Cov dej noo yog qhov feem ntau tshwm sim thiab puas tsuaj rau PCB Circuit Boards.Cov dej noo ntau dhau yuav ua rau txo cov rwb thaiv tsev ntawm cov neeg siv hluav taws xob, ua kom nrawm nrawm nrawm, txo qis Q tus nqi, thiab corrode conductors.Peb feem ntau pom patina ntawm cov hlau ntawm PCB Circuit Court boards, uas yog tshwm sim los ntawm cov tshuaj tiv thaiv ntawm hlau tooj liab thiab dej vapor thiab oxygen uas tsis coated nrog conformal xim.
Thiab pua pua ntawm cov kab mob sib kis tau pom nyob rau ntawm cov ntawv luam tawm tuaj yeem ua rau puas tsuaj.Lawv tuaj yeem ua rau cov txiaj ntsig zoo ib yam li ya raws tawm tsam - hluav taws xob lwj, corrosion ntawm conductors, thiab txawm tias tsis tuaj yeem cuam tshuam luv luv.Cov kab mob feem ntau pom nyob rau hauv cov tshuab hluav taws xob tej zaum yuav yog cov tshuaj lom neeg los ntawm kev tsim khoom.Piv txwv ntawm cov kab mob no muaj xws li fluxes, cov kuab tshuaj tso tawm, cov khoom hlau thiab cov cim cim.Kuj tseem muaj cov kab mob loj heev uas tshwm sim los ntawm kev ua tib neeg tsis tu ncua, xws li tib neeg lub cev roj, cov ntiv tes, tshuaj pleev ib ce thiab cov khoom noj khoom haus.Kuj tseem muaj ntau cov kuab paug nyob hauv qhov chaw ua haujlwm, xws li tshuaj tsuag ntsev, xuab zeb, roj, kua qaub, lwm yam corrosive vapors thiab pwm.
Txheej cov xim tsis sib xws ntawm cov ntawv luam tawm thiab cov khoom siv tuaj yeem txo lossis tshem tawm kev ua haujlwm hauv hluav taws xob ua haujlwm tsis zoo thaum lawv tuaj yeem cuam tshuam los ntawm qhov tsis zoo hauv qhov chaw ua haujlwm.Yog tias cov txheej txheem no tuaj yeem tswj hwm nws cov txiaj ntsig rau lub sijhawm txaus siab, xws li ntev dua li kev pabcuam lub neej ntawm cov khoom, nws tuaj yeem suav tau tias tau ua tiav nws lub hom phiaj txheej.
Conformal anti-xim txheej tshuab
Txawm hais tias cov txheej txheej yog nyias nyias, nws tuaj yeem tiv taus txhua yam kev vibration thiab viav vias, thermal shock, thiab kev ua haujlwm ntawm qhov kub thiab txias rau qee yam.Tau kawg, nws yog qhov tsis ncaj ncees rau kev xav tias cov yeeb yaj kiab tuaj yeem siv los muab cov khoom siv dag zog lossis cov rwb thaiv tsev txaus rau cov khoom sib txuas rau hauv lub rooj tsav xwm luam tawm.Cheebtsam yuav tsum tau mechanically ntxig thiab yuav tsum muaj lawv tus kheej tsim caulks, yog li muaj kev pov hwm ob npaug tiv thaiv kev raug mob.
1. Solvent-muaj acrylic resin conformal anti-paint (tam sim no yog cov khoom siv dav thiab nrov tshaj plaws hauv khw).
Nta: Nws muaj cov yam ntxwv ntawm qhov ziab kom qhuav, lub sijhawm kho sai, cov khoom zoo peb-pov thawj, pheej yig tus nqi, pob tshab xim, hloov tau yooj yim thiab kho yooj yim.
2. Solvent-free acrylic resin conformal xim.
Nta: UV curing, nws tuaj yeem qhuav hauv ob peb vib nas this mus rau ntau tshaj kaum vib nas this, cov xim yog pob tshab, kev ntxhib los mos yog tawv, thiab cov tshuaj tiv thaiv corrosion thiab hnav kuj zoo heev.
3. Polyurethane conformal xim.
Nta: brittle kev ntxhib los mos thiab zoo heev hnyav kuj.Ntxiv nrog rau nws cov kev ua tau zoo ntawm cov dej noo-pov thawj, nws kuj tseem muaj kev ua haujlwm ruaj khov nyob rau hauv qhov chaw qis qis.
4. Silicone conformal xim.
Nta: Mos elastic txheej khoom, zoo siab nyem, kub tsis kam ntawm 200 degrees, yooj yim kho.
Tsis tas li ntawd, los ntawm kev xav ntawm tus nqi thiab kev ua tau zoo, kuj tseem muaj qhov tshwm sim ntawm qhov sib txawv ntawm cov txheej txheem saum toj no, xws li silicone-hloov conformal coatings.
Post lub sij hawm: Oct-23-2023