Momwe Mungadziwire ndi Kuyankha Mitundu 6 ya PCB Fogging Coating Conformal Coating Defects

Poganizira zamitundu yomwe ikukhudzidwa ndi njira zokutira zofananira (monga kuyika kwa zokutira, kukhuthala, kusinthika kwa gawo lapansi, kutentha, kusakanikirana kwa mpweya, kuipitsidwa, kutuluka kwa nthunzi, chinyezi, ndi zina), zovuta zomata zimatha kubuka.Tiyeni tiwone zovuta zina zomwe zingabwere popaka ndi kuchiritsa utoto, komanso zomwe zingayambitse komanso zoyenera kuchita.

1. Kuchepetsa chinyezi

Izi zimayambitsidwa ndi kuipitsidwa kwa gawo lapansi lomwe siligwirizana ndi zokutira.Zomwe zimayambitsa kwambiri ndi zotsalira za flux, mafuta opangira mafuta, zotulutsa nkhungu, ndi mafuta a zala.Kuyeretsa bwino gawo lapansi musanagwiritse ntchito zokutira kudzathetsa nkhaniyi.

2. Kusokonezeka

Pali zifukwa zingapo zomwe zimayambitsa vutoli, pomwe malo ophimbidwa amataya kumatira kwake ku gawo lapansi ndipo amatha kukweza kuchokera pamwamba, chifukwa chimodzi chachikulu ndikuipitsidwa pamwamba.Nthawi zambiri, mumangowona zovuta za delamination pomwe gawolo lipangidwa, chifukwa nthawi zambiri siliwoneka nthawi yomweyo ndipo kuyeretsa moyenera kumatha kuthetsa vutoli.Chifukwa china ndi chosakwanira kumamatira nthawi pakati malaya, zosungunulira alibe nthawi nthunzi nthunzi pamaso malaya lotsatira, kuonetsetsa nthawi yokwanira pakati malaya adhesion ndi ayenera.

3. Mibulu

Kutsekera kwa mpweya kumatha chifukwa cha zokutira zomwe sizimamatira molingana ndi gawo lapansi.Pamene mpweya ukukwera kupyolera mu zokutira, phokoso laling'ono la mpweya limapangidwa.Ena mwa thovuli amagwa n’kupanga mphete yooneka ngati crater.Ngati wogwiritsa ntchitoyo sasamala kwambiri, kupukuta kumatha kuyambitsa thovu la mpweya mu zokutira, ndi zotsatira zomwe tafotokozazi.

4. More mpweya thovu ndi voids

Ngati zokutirazo ndi zokhuthala kwambiri, kapena zokutirazo zimachira msanga (ndi kutentha), kapena chosungunulira chopaka chimatulutsa nthunzi mofulumira kwambiri, zonsezi zingayambitse pamwamba pa zokutira kuti zikhwime mofulumira pamene zosungunulira zimatuluka nthunzi pansi, kuchititsa thovu. pamwamba wosanjikiza.

5. Zochitika za fisheye

Malo ang'onoang'ono ozungulira omwe ali ndi "crater" yotuluka pakati, yomwe nthawi zambiri imawonedwa panthawi kapena posakhalitsa kupopera mbewu mankhwalawa.Izi zitha kuchitika chifukwa cha mafuta kapena madzi omwe atsekeredwa mu mpweya wopopera ndipo zimachitika kawirikawiri pamene mpweya wa shopu uli ndi mitambo.Samalani kuti mukhale ndi njira yabwino yosefera kuti muchotse mafuta kapena chinyezi chilichonse kulowa mu sprayer.

6. Pepala la lalanje

Imawoneka ngati peel ya lalanje, mawonekedwe osagwirizana.Apanso, pangakhale zifukwa zosiyanasiyana.Ngati mukugwiritsa ntchito makina opopera, ngati kuthamanga kwa mpweya kuli kotsika kwambiri, kumayambitsa atomization yosagwirizana, zomwe zingayambitse izi.Ngati zowonda zimagwiritsidwa ntchito m'makina opopera kuti achepetse kukhuthala, nthawi zina kusankha kolakwika kwa woonda kumatha kupangitsa kuti zisasunthike mwachangu, osapereka zokutira nthawi yokwanira kuti zifalikire mofanana.