SMT nhazi ga-apụta ụfọdụ ọjọọ àgwà nsogbu, dị ka guzo ihe ncheta, ọbụna tin, efu solder, ụgha solder, wdg .. E nwere ọtụtụ ihe kpatara adịghị mma mma, ma ọ bụrụ na e nwere mkpa kpọmkwem analysis nke kpọmkwem nsogbu.
Taa, gị na gị ga-ewebata mbipụta SMT ọbụna tin ihe kpatara na azịza ya.
Gịnị bụ SMT ọbụna tin?
Site nkịtị pụtara echiche nke tin nwere ike ịghọta nke ọma, bụ Olee ihe enyemaka ndị dị n'akụkụ mpe mpe akwa egosi ngafe tin, guzobe njikọ, dị iche iche mpe mpe akwa ma ọ bụ ahịrị, site ngafe tin jikọtara ọnụ, makwaara dị ka tin àkwà mmiri.
Ihe na-esonụ bụ SMT ọbụna tin ihe kpatara na melite countermeasures:.
1.Poor adhesion nke solder tapawa
Solder mado na-mere nke tin ntụ ntụ na flux Nchikota, na unpacked tupu ojiji a ga-enịm ke refrjiraeto, mgbe mkpa iji, ọ dị mkpa ka kpoo na nwuo evenly tupu, egosi ọbụna tin bụ n'ihi na ogbenye viscosity. nke mado, nwere ike ịlaghachi na okpomọkụ ma ọ bụ oge mkpali ezughị.
Usoro nkwalite
Tupu iji ya mee ihe, kpoo pasta ahụ ihe karịrị nkeji iri atọ ma kpalie nke ọma ruo mgbe tapawa anaghị agbaji.Ụlọ ọrụ buru ibu na-arịwanye elu ugbu a na-eji ụlọ ọrụ nchịkwa nke nwere ọgụgụ isi, nke nwere ike ime ka nsogbu a dịkwuo mma.
2.Stencil oghere ezughị oke
Ekwesịrị iji stencil maka patching, stencil bụ n'ezie pcb pad leak, ọ dị mkpa ka ejiri pcb pad size na nha, ọnọdụ, ụfọdụ ntụpọ mmepụta stencil, enwere ike ịnwe oghere buru ibu, na-ebute ntachi nke ego ole. tapawa solder nke e biri ebi nke ukwuu, enwere mgbanwe ngbanwe nke na-ebute ọbụna tin.
Mmezi ihe mgbochi
Ekwesịrị iji nlezianya lelee stencil ahụ megide faịlụ Gerber, a ga-ejikwa laser meghee stencil, ebe oghere stencil (karịsịa maka paịlị nwere ntụtụ) kwesịrị ịbụ nkeji iri na ise pere mpe karịa pad ahụ n'ezie.
3.Igwe na-ebi akwụkwọ na-ere ahịa madoebipụta, pcb osisi na-egosi rụrụ arụ
PCB mpe mpe akwa na-ebipụta solder mado, mkpa iji solder mado obibi igwe, solder mado obibi igwe nwere a table maka PCB solder mado obibi na demoulding, na PCB mpe mpe akwa solder mado obibi, PCB mkpa nyefee na tebụl kpọmkwem ebe, na mkpa nke fixture ofu pcb osisi, ma ọ bụrụ na nyefe ọnọdụ deviation, fixture emeghị mwekota pcb, ga-apụta na-ebi akwụkwọ offset, mepụta ọbụna tin.
Usoro nkwalite
Mgbe ị na-ebi akwụkwọ tapawa solder na ngwa nbipute tapawa, ịkwesịrị ịmegharị mmemme ahụ tupu oge eruo ka ọnọdụ mbufe pcb bụrụ nke ziri ezi, a ga-enyochakwa ngwa ahụ mgbe niile ma dochie ya maka mmezi.
Ihe ndị a dị n'elu, iji zere ihe omume nke ọbụna tin na àgwà ọjọọ ndị ọzọ, ọ dị mkpa ka a rụọ ọrụ dị mma n'oge mbụ, kamakwa na azụ nke igwe na-ebi akwụkwọ iji gbakwunye a.Igwe SMT SPI nchọpụta, dị ka o kwere mee iji belata ọnụ ọgụgụ ọjọọ.
Atụmatụ nkeNeoDen ND1ngwa nbipute stencil
Nyefee ụzọ egwu aka ekpe - aka nri, akanri - aka ekpe, aka ekpe - aka ekpe, akanri - akanri
Ụdị mgbasa ozi ngalaba ụdị egwu
PCB ọnọdụ njigide
Nrụgide sọftụwia nwere ike ịhazigharị nke nrụgide akụkụ ngbanwe
Nhọrọ:
1. N'ozuzu ala mmiri ime ụlọ agụụ
2. N'okpuru multipoint oghere akụkụ
3. Edge mkpọchi clamping efere
Usoro nkwado osisi magnetik thimble, ngwaọrụ pụrụ iche na-ejide ọrụ (nhọrọ: Grid-Lok)
Oge nzipu: Feb-02-2023