Chifukwa chiyani reflow soldering imatchedwa reflow?

Chifukwa chiyani?reflow solderingamatchedwa "reflow"?Kubwereranso kwa reflow soldering kumatanthauza kuti pambuyo pasolder phalakufika pa kusungunuka kwa solder phala, pansi pa zochita za kusamvana pamwamba pa malata madzi ndi flux, madzi malata reflows kwa chigawo zikhomo kupanga solder olowa, kulola dera A ndondomeko imene ziyangoyango bolodi ndi zigawo zikuluzikulu ndi. kugulitsidwa mu zonse kumatchedwanso "reflow" ndondomeko.

1. Pamene bolodi PCB akulowa reflow Kutentha zone, zosungunulira ndi mpweya mu solder phala nthunzi nthunzi.Panthawi imodzimodziyo, kutuluka kwa phala la solder kumanyowetsa mapepala, mapeto a chigawo ndi zikhomo, ndipo phala la solder limafewetsa ndikugwa., Kuphimba pad, kudzipatula pad ndi zigawo zikhomo kuchokera ku okosijeni.

2. Pamene bolodi la dera la PCB likulowa m'dera la reflow soldering kutchinjiriza, PCB ndi zigawo zake zimatenthedwa kuti ziteteze PCB kuti isalowe mwadzidzidzi kumalo otentha kwambiri a kuwotcherera ndi kuwononga PCB ndi zigawo zikuluzikulu.

3. PCB ikalowa m'dera la reflow soldering, kutentha kumakwera mofulumira kuti phala la solder lifike pamtunda wosungunuka, ndipo solder yamadzimadzi imanyowetsa ndi kufalitsa mapepala, malekezero a chigawo ndi zikhomo za PCB, ndipo malata amadzimadzi amatulukanso ndikusakaniza. kupanga ma solder joints.

4. PCB imalowa m'dera lozizira la reflow, ndipo malata amadzimadzi amatsitsimutsidwanso kuti akhazikitse mgwirizano wa solder ndi mpweya wozizira wa reflow soldering;pa nthawi iyi, reflow soldering watha.

Njira yonse yogwiritsira ntchito reflow soldering ndi yosasiyanitsidwa ndi mpweya wotentha mu ng'anjo yotsitsimula.Reflow soldering imadalira machitidwe a mpweya wotentha pamalumikizidwe a solder.Kuthamanga kofanana ndi odzola kumayendera thupi pansi pa kutentha kwina kwa mpweya kuti mukwaniritse SMD soldering;reflow soldering ” "Reflow" ndi chifukwa gasi amazungulira mmbuyo ndi mtsogolo mu makina owotcherera kuti apange kutentha kwakukulu kuti akwaniritse cholinga chowotcherera, motero amatchedwa reflow soldering.