Mbiri ya wave soldering

Wopanga mafunde a solder a Chengyuan akudziwitsani kuti kuwotcherera kwa mafunde kwakhalapo kwazaka zambiri, ndipo monga njira yayikulu yolumikizira zida, zathandiza kwambiri pakukula kwa kugwiritsidwa ntchito kwa PCB.

Pali kukankhira kwakukulu kopangitsa kuti zamagetsi zikhale zazing'ono komanso zogwira ntchito, ndipo PCB (mtima wa zida izi) imapangitsa izi kukhala zotheka.Izi zadzetsanso njira zatsopano zogulitsira ngati m'malo mwa wave soldering.

Pamaso pa Wave Soldering: Mbiri Yamsonkhano wa PCB

Kugulitsa ngati njira yolumikizira zida zachitsulo kumaganiziridwa kuti kudayamba tangotulukira malata, omwe akadali chinthu chachikulu kwambiri pamalonda masiku ano.Kumbali ina, PCB yoyamba idawonekera m'zaka za zana la 20.Woyambitsa wa ku Germany Albert Hansen anadza ndi lingaliro la ndege ya multilayer;opangidwa ndi insulating zigawo ndi kondakitala zojambulazo.Ananenanso za kugwiritsa ntchito mabowo pazida, zomwe ndi njira yofananira yomwe imagwiritsidwa ntchito masiku ano pakukweza zida zapabowo.

Panthawi ya nkhondo yachiwiri ya padziko lonse, kupanga zipangizo zamagetsi ndi zamagetsi kunayamba pamene mayiko ankafuna kupititsa patsogolo mauthenga ndi kulondola kapena kulondola.Woyambitsa PCB yamakono, Paul Eisler, adapanga njira mu 1936 yolumikiza zojambulazo zamkuwa ku gawo lapansi loteteza galasi.Pambuyo pake adawonetsa momwe angalumikizire wailesi pa chipangizo chake.Ngakhale matabwa ake ankagwiritsa ntchito mawaya kuti agwirizane ndi zigawo, pang'onopang'ono, kupanga ma PCB ambiri sikunali kofunikira panthawiyo.

Kuwotchera kwa Wave ku Rescue

Mu 1947, transistor inapangidwa ndi William Shockley, John Bardeen, ndi Walter Brattain ku Bell Laboratories ku Murray Hill, New Jersey.Izi zidapangitsa kuti kukula kwa zida zamagetsi kuchepe, ndipo zomwe zidachitika pambuyo pa etching ndi lamination zidayambitsa njira zopangira zida zogulitsira.
Popeza zida zamagetsi zikadali m'mabowo, ndizosavuta kupereka solder ku bolodi lonse nthawi imodzi, m'malo mozigulitsa payekhapayekha ndi chitsulo chosungunuka.Chifukwa chake, kutenthetsa mafunde kunabadwa poyendetsa bolodi lonse pa "mafunde" a solder.

Masiku ano, ma wave soldering amachitidwa ndi makina opangira mafunde.Ndondomekoyi ili ndi izi:

1. Kusungunuka - Solder imatenthedwa pafupifupi 200 ° C kotero imathamanga mosavuta.

2. Kuyeretsa - Chotsani chigawocho kuti muwonetsetse kuti palibe zopinga zomwe zimalepheretsa solder kumamatira.

3. Kuyika - Ikani PCB moyenera kuti mutsimikizire kuti solder ikufika mbali zonse za bolodi.

4. Kugwiritsa ntchito - Solder imagwiritsidwa ntchito ku bolodi ndikuloledwa kuyenda kumadera onse.

Tsogolo la Wave Soldering

Wave soldering kale inali njira yomwe imagwiritsidwa ntchito kwambiri.Ichi ndi chifukwa liwiro lake kuposa soldering Buku, motero kuzindikira zochita zokha za msonkhano PCB.Njirayi ndi yabwino kwambiri pakugulitsa mwachangu kwambiri, motalikirana bwino kudzera pamabowo.Popeza kufunikira kwa ma PCB ang'onoang'ono kumabweretsa kugwiritsa ntchito ma board a multilayer ndi zida zapamtunda (SMDs), njira zowotchera zenizeni ziyenera kupangidwa.

Izi zimatsogolera ku njira yosankha yogulitsira pomwe maulumikizidwe amagulitsidwa payekhapayekha, monga momwe amagulitsira pamanja.Kupita patsogolo kwa ma robotiki omwe ndi othamanga komanso olondola kwambiri kuposa kuwotcherera pamanja kwapangitsa kuti njirayo ikhale yotheka.

Wave soldering imakhalabe njira yogwiritsiridwa ntchito bwino chifukwa cha liwiro lake komanso kusinthika kwa mapangidwe atsopano a PCB omwe amakonda kugwiritsa ntchito SMD.Kusankha mafunde opangira magetsi kwatulukira, komwe kumagwiritsa ntchito jetting, yomwe imalola kugwiritsa ntchito solder kuyendetsedwa ndikuwongolera kumadera osankhidwa okha.Zida zapabowo zikugwiritsidwabe ntchito, ndipo wave soldering ndiyo njira yachangu kwambiri yogulitsira zinthu zambiri mwachangu, ndipo ikhoza kukhala njira yabwino kwambiri, kutengera kapangidwe kanu.

Ngakhale kugwiritsa ntchito njira zina zogulitsira, monga kusankha kugulitsa, kukuchulukirachulukira, kusuntha kwa mafunde kumakhalabe ndi zabwino zomwe zimapangitsa kuti ikhale njira yabwino yolumikizirana ndi PCB.