Ọtụtụ n'ime pcba nhazi factory ga-ezute ọjọọ onu, SMT mgbawa components na usoro nke mgbawa nhazi ọgwụgwụ ebuli.Ọnọdụ a mere na obere ihe mgbawa capacitive components, karịsịa 0402 mgbawa capacitors, mgbawa resistors, a na-akpọkarị ihe a dị ka "monolithic phenomenon".
Ihe mere e ji guzobe
(1) components na ma nsọtụ nke solder mado agbaze oge na-adịghị mekọrịta ma ọ bụ elu esemokwu dị iche iche, dị ka ogbenye obibi nke solder mado (otu ọgwụgwụ nwere ntụpọ), mado elere anya, components solder ọgwụgwụ size dị iche iche.N'ozuzu mgbe niile solder mado mgbe agbaze ọgwụgwụ na-e sere elu.
(2) Nkịtị imewe: mpe mpe akwa ogologo ogologo nwere a adabara nso, oke mkpụmkpụ ma ọ bụ ogologo na-adịkarị mfe na onu nke guzo ihe ncheta.
(3) A na-akpụcha ihe ndị ahụ na-ere ihe nke ukwuu, a na-ekpukwa ihe ndị ahụ n'elu mmiri mgbe tapawa solder gbazechara.N'okwu a, ihe ndị ahụ ga-adị mfe ikuku na-ekpo ọkụ iji mee ihe ngosi nke ihe ncheta guzoro.
(4) Ntọala mgbanaka okpomọkụ: monoliths n'ozuzu na-eme n'oge mgbe nkwonkwo solder malitere ịgbaze.Ọnụ ọgụgụ nke okpomọkụ na-ebili n'akụkụ ebe mgbaze dị ezigbo mkpa, na-eji nwayọọ nwayọọ na-eme ka ọ dị mma ikpochapụ ihe ngosi monolith.
(5) Otu n'ime ihe ndị na-ere ahịa akụrụngwa bụ oxidised ma ọ bụ metọọ ya enweghị ike ịgbanye mmiri.Lezienụ anya na ihe ndị nwere otu oyi akwa ọlaọcha na njedebe solder.
(6) Mpempe akwụkwọ na-emerụ (ya na silkscreen, ink na-eguzogide ihe na-ere ahịa, na-ejikọta ya na ihe mba ọzọ, oxidized).
Usoro nhazi:
Mgbe reflow soldering, okpomọkụ na-etinye n'elu na ala nke mgbawa akụrụngwa n'otu oge.N'ozuzu, ọ bụ mgbe niile na mpe mpe akwa nwere nnukwu ekpughere ebe a na-ebu ụzọ kpoo ọkụ n'elu ebe mgbaze nke tapawa solder.N'ụzọ dị otú a, njedebe nke akụrụngwa nke na-emecha mee mmiri site na ihe na-ere ahịa na-emekarị ka ọ na-adọta elu site na esemokwu elu nke ihe na-ere ahịa na nsọtụ nke ọzọ.
Ngwọta:
(1) akụkụ imewe
Ezi uche imewe nke mpe mpe akwa – nnochi anya size ga-abụ ihe ezi uche dị na ya, dị ka o kwere omume iji zere outreach ogologo mejupụtara mpụta nsọtụ nke mpe mpe akwa (ziri ezi) wetting akụkụ karịrị 45 Celsius.
(2) Ebe mmepụta ihe
1. ịdị uchu hichaa net iji hụ na solder mado akara ndịna-emeputa kpamkpam.
2. ezi ntinye ọnọdụ.
3. Jiri na-abụghị eutectic solder mado ma belata ọnụego nke okpomọkụ ịrị elu n'oge reflow soldering (njikwa n'okpuru 2.2 ℃ / s).
4. Mkpa ọkpụrụkpụ nke solder mado.
(3) Ihe na-abata
Jikwaa nke ọma ịdị mma nke ihe na-abata iji hụ na mpaghara dị irè nke ihe eji eme ihe bụ otu nha na nsọtụ abụọ (ihe ndabere maka imepụta esemokwu elu).
Akụkụ nke NeoDen IN12C Reflow oven
1. Ejiri usoro ịgbado ọkụ ọkụ ọkụ na-arụ ọrụ, nzacha nke ọma nke gas na-emerụ ahụ, ọdịdị mara mma na nchebe gburugburu ebe obibi, ihe ndị ọzọ kwekọrọ na iji gburugburu ebe dị elu.
2.The usoro njikwa nwere njirimara nke njikọta dị elu, nzaghachi oge, obere ọdịda ọdịda, mmezi dị mfe, wdg.
3. nwere ọgụgụ isi, jikọtara ya na PID akara algọridim nke usoro njikwa ọgụgụ isi nke mepụtara omenala, dị mfe iji, dị ike.
4. ọkachamara, pụrụ iche 4-ụzọ osisi elu okpomọkụ nlekota usoro, nke mere na n'ezie ọrụ na a oge na keukwu nzaghachi data, ọbụna n'ihi na mgbagwoju electronic ngwaahịa nwere ike ịdị irè.
5. Omenala-mepụtara igwe anaghị agba nchara B-ụdị ntupu eriri, inogide na eyi na-eguzogide.Iji ogologo oge eme ihe adịghị mfe nrụrụ
6. Mara mma ma nwee ọrụ mkpu na-acha uhie uhie, odo na akwụkwọ ndụ akwụkwọ ndụ nke ihe ngosi.
Oge nzipu: Mee-11-2023