SMT pad dhizaini chikamu chakakosha che PCB design. Inotarisa nzvimbo yekutengesa yezvikamu paPCB, kuvimbika kwemajoini ekutengesa, kukanganisa kwekutengesa kunogona kuitika panguva yekugadzira, kujekesa, testability uye kuchengetedza Kumirira kuita basa rinokosha. Kana iyo PCB pad dhizaini yakaringana, diki skew panguva yekukwira inogona kugadziriswa nekuda kwekuzvigadzirisa-yega mhedzisiro yekunetsa kwepamusoro kweiyo solder yakanyungudutswa panguva yekuyerera kwekutengesa. Kusiyana neizvi, kana PCB pad dhizaini isiri iyo, kunyangwe nzvimbo yekuisa iri chaiyo, pachava nekuremara kwekutengesa senge chikamu chekutamisa uye dombo reguva mushure mekuyerera kwekutengesa. Naizvozvo, padhi dhizaini ndechimwe chezvinhu zvakakosha zvinotaridza kugadzirwa kwezvinhu zvekumusoro kwegomo. Mapedhi akajairika “chirwere chakajairika uye chirwere chinowanzoitika” muPCB dhizaini, uye zvakare chimwe chezvinhu zvikuru zvinokonzeresa njodzi dzakavanzika muPCB soldering mhando.

Ndeipi mhedzisiro yemapedhi akajairwa paPCB soldering mhando

1. Mushure mokunge zvikamu zvechiputi zvinotengeswa pane imwe padhi, kana pini plug-in components kana wiring inotengeswa zvakare, kune ngozi yakavanzwa yenhema soldering panguva yechipiri soldering.

2. Kuwanda kwekugadzirisa panguva yekutevera kutumwa, kuedza uye mushure mekutengesa kugadzirisa kunogumira.

3. Paunenge uchigadzirisa, unsoldering chikamu, zvikamu zvakapoteredza zvepadhi imwechete zvose hazvina kuiswa.

4. Apo padhi inoshandiswa pamwe chete, kushushikana kwepadhi kwakakura kwazvo, zvichiita kuti padhi iparadze panguva ye soldering.

5. Iyo padhi imwechete inogoverwa pakati pezvikamu, chiyero chetini chakawandisa, kukanganiswa kwepamusoro kune asymmetric mushure mekunyunguduka, zvikamu zvinodhonzwa kune rumwe rutivi, zvichikonzera kutama kana makuva.

6. Zvakafanana nekushandiswa kusingaenzaniswi kwemamwe mapedhi, chikonzero chikuru ndechekuti maitiro edunhu chete anotariswa uye nzvimbo kana nzvimbo ishoma, izvo zvinotungamira kune yakawanda yekuiswa kwechikamu uye solder majoini akaremara musangano uye welding process. , iyo pakupedzisira inokanganisa kuvimbika kwedunhu. Kukanganisa kukuru.