Mitundu Ya PCB Circuit Board Conformal Coating Materials Kwa PCB Assembly Manufacturing

Conformal circuit board coating ndi njira yogwiritsira ntchito zigawo zapadera za utomoni pazitsulo zozungulira kuti zitetezedwe ku zinthu zovulaza zachilengedwe. Mafilimu a polymeric ndi ochepa komanso owonekera kwambiri kuti muwone zigawozo kudzera pa bolodi, ndipo ntchito za bolodi sizikusokoneza konse. Izi zimathandiza kuteteza PCBs tcheru ku kuwononga chinyezi, dzimbiri, mankhwala, zamadzimadzi, fumbi, ndi dothi.

Ma matabwa ozungulira ophimbidwa ndi odalirika komanso olimba chifukwa amatha kugwiritsidwa ntchito ngakhale pazovuta kwambiri popanda kuwonongeka kapena kufupika. Opanga ndi ogwiritsa ntchito amakhala omasuka ndi zida zamagetsi zokutira chifukwa ndizokhazikika.

Zida zokutira zofananira za PCB

Njira zokutira zama board ozungulira zimagwiritsa ntchito zida zosiyanasiyana za utomoni kuti mukwaniritse zoteteza zomwe mukufuna. M'malo mwake, mtundu wa ntchito umafunikira zimatsimikizira zomwe zimagwiritsidwa ntchito pakupaka. Zosiyana zokutira conformal perekani katundu wosiyanasiyana, ndipo ndikofunikira kumvetsetsa kaye zida zanu ndi zosowa zawo zogwirira ntchito musanasankhe zomwe zili zoyenera kwambiri. Zina mwazinthu zomwe zimagwiritsidwa ntchito popaka board board ndi:

Polyurethane utomoni - Urethane resins amakondedwa chifukwa chokana kwambiri ndi mankhwala, ma abrasion, ndi chinyezi. Amagwiritsidwa ntchito kwambiri ndi zinthu zomwe zimakhala ndi zinthu zamadzimadzi zowononga komanso nthunzi. Kumbali inayi, zokutira zamtunduwu ndizosasunthika chifukwa chake kukonzanso ndikuchotsa kumakhala kovuta.

Acrylic utomoni - Ma resin awa ndi ma polima omwe amasungunuka. Ndiosavuta kukonzanso ndipo amafuna kuyanika kosavuta. Ndiwo abwino kwambiri pama board ozungulira omwe amatha kuwonetsedwa ndi chinyezi. Kuchotsa zokutira za acrylic ndikosavuta, ndikupangitsa kukhala chisankho chabwino pakukonza ntchito. Komabe, utomoniwo sulimbana ndi nthunzi wamankhwala ndi zosungunulira.

Utali wamkati - Ma epoxies ndi mankhwala omwe amapangidwa kuti apange wosanjikiza wolimba pama board ozungulira. Chosanjikizacho chimagonjetsedwa ndi mankhwala, abrasion, ndi chinyontho ndipo sichikhoza kulowa mkati. Kupaka kotereku ndikwabwino kwa matabwa ozungulira omwe ali ndi zovuta zochepa zamakina komanso zomwe zimafunika kuti ziphimbidwe kwathunthu ndi wosanjikiza woteteza. Kumbali inayi, kuuma kwa zokutira kumapangitsa kukhala kosavuta kusinthasintha, motero kumakhala kovuta kukonzanso ndikuchotsa.

Silicone utomoni - Kupaka board board kumatha kugwiritsanso ntchito utomoni wa silikoni womwe ndi wabwino kwambiri pamankhwala, chinyezi, kutentha, komanso kukana dzimbiri. Zinthu zokutira zofananirazi zimakhalanso zosinthika komanso zosavuta kugwira ntchito pamapangidwe osiyanasiyana. Zipangizo zamagetsi zomwe nthawi zambiri zimakhala zakunja ndizoyenera kwambiri zokutira izi chifukwa cha chinyezi komanso kutentha komwe kumasinthasintha. Mkhalidwe wa mphira wa silikoni umalepheretsa kukana abrasion komanso umapatsanso mphamvu kupsinjika kunjenjemera.

Parylene - Kupaka kwa board board uku kumachitika pogwiritsa ntchito mpweya wamankhwala. Zinthuzo zimatenthedwa kukhala mawonekedwe a gasi ndiyeno zimawonjezeredwa ku vacuum yomwe imapangitsa kuti ikhale filimu yopyapyala yofunikira ndikuyiyika pamatabwa. Kanemayu ali ndi mphamvu ya dielectric yabwino kwambiri ndipo imalimbana ndi kutentha kwambiri, dzimbiri, ndi chinyezi. Kukonzekera kwapadera kwa zinthu zokutira izi kumapangitsa kuti zikhale zovuta komanso zosatchuka. Ndizovuta kuchotsa; abrasion nthawi zambiri imafunika kuti ichotsedwe bwino.

Kuti mudziwe zambiri za mitundu ya pcb dera bolodi conformal ❖ kuyanika zipangizo pakuti pcb msonkhano kupanga, inu mukhoza kulipira ulendo DeepMaterial pa https://www.epoxyadhesiveglue.com/category/epoxy-conformal-coating/ chifukwa Dziwani zambiri.