Zomwe zimakhudza mtundu wa reflow soldering

Zomwe zimakhudza ubwino wa reflow soldering ndi izi

1. Mphamvu zinthu za solder phala
Ubwino wa reflow soldering umakhudzidwa ndi zinthu zambiri.Chofunika kwambiri ndi kutentha kwa ng'anjo ya reflow ndi magawo a solder phala.Tsopano wamba mkulu ntchito reflow kuwotcherera ng'anjo watha kulamulira ndi kusintha kutentha pamapindikira molondola.Mosiyana ndi zimenezi, mu chikhalidwe cha kachulukidwe mkulu ndi miniaturization, solder phala kusindikiza wakhala chinsinsi reflow soldering khalidwe.
The tinthu mawonekedwe a solder phala aloyi ufa chikugwirizana ndi kuwotcherera khalidwe la yopapatiza katayanitsidwe zipangizo, ndi mamasukidwe akayendedwe ndi zikuchokera solder phala ayenera kusankhidwa bwino.Kuphatikiza apo, phala la solder nthawi zambiri limasungidwa m'malo ozizira, ndipo chivundikirocho chimatha kutsegulidwa kokha pamene kutentha kwabwereranso kutentha.Chisamaliro chapadera chiyenera kuperekedwa popewa kusakaniza phala la solder ndi nthunzi wamadzi chifukwa cha kusiyana kwa kutentha.Ngati ndi kotheka, sakanizani phala la solder ndi chosakanizira.

2. Mphamvu ya zida zowotcherera
Nthawi zina, kugwedezeka kwa lamba wotumizira wa zida zowotchereranso ndi chimodzi mwazinthu zomwe zimakhudza mtundu wa kuwotcherera.

3. Chikoka cha reflow kuwotcherera ndondomeko
Pambuyo kuthetsa khalidwe lachilendo la solder phala ndondomeko yosindikizira ndi SMT ndondomeko, reflow soldering ndondomeko palokha adzachititsanso zachilendo khalidwe zotsatirazi:
① Mu kuwotcherera kozizira, kutentha kwa reflow ndi kotsika kapena nthawi yobwezeretsanso sikokwanira.
② Kutentha kwa preheat zone ya malata kumakwera mofulumira kwambiri (nthawi zambiri, kutsetsereka kwa kutentha kumakhala kosakwana madigiri atatu pamphindi).
③ Ngati bolodi kapena zigawo zake zimakhudzidwa ndi chinyezi, ndizosavuta kuyambitsa kuphulika kwa malata ndikupanga malata osalekeza.
④ Nthawi zambiri, kutentha kwa malo ozizira kumatsika mofulumira kwambiri (nthawi zambiri, kutsika kwa kutentha kwa kuwotcherera kwa lead kumakhala kosakwana madigiri 4 pa sekondi iliyonse).