BGA rework ọdụbụ ngwa ọkachamara eji arụzi ihe ndị BGA, nke a na-ejikarị na ụlọ ọrụ SMT.Ọzọ, anyị ga-ewebata ụkpụrụ bụ isi nke ọdụ ọrụ BGA wee nyochaa isi ihe iji melite ọnụego nrụzi nke BGA.
Enwere ike ikewa ọdụ ọdụ ọrụ BGA ka ọ bụrụ tebulu nrụzi ihe nrụzi anya na tebụl nrụzi ihu na-abụghị nke ngwa anya.Ihe nleba anya anya na-ezo aka na nhazi nke optics n'oge ịgbado ọkụ, nke nwere ike hụ na nhazi nke ịgbado ọkụ na-aga nke ọma ma melite ọnụego ihe ịga nke ọma nke ịgbado ọkụ.Ọnụ ọgụgụ na-abụghị ngwa anya, nke a na-eme n'ọhụụ, adịchaghị zie ezie mgbe ịgbado ọkụ.
Ka ọ dị ugbu a, isi ụzọ kpo oku nke ọdụ ọrụ BGA gụnyere infrared zuru oke, ikuku ọkụ zuru oke na ikuku ọkụ abụọ na otu infrared.Ụzọ kpo oku dị iche iche nwere uru na ọghọm dị iche iche.Usoro ikpo ọkụ nke ụlọ ọrụ BGA na China na-abụkarị ikuku na-ekpo ọkụ n'akụkụ elu na nke dị ala yana infrared preheating na ala, nke a na-akpọ mpaghara okpomọkụ atọ.A na-ekpo ọkụ ndị isi ọkụ na elu na nke ala site na waya kpo oku na ikuku na-ekpo ọkụ na-ebupụ site na ikuku ikuku.Enwere ike kewaa preheating ala n'ime tube kpo oku mpụta na-acha uhie uhie, efere kpo oku infrared na efere ọkụ infrared.
1. Na-ekpo ọkụ na ala na nzu
Site kpo oku waya kpo oku, ikuku na-ekpo ọkụ ga-ebunye na BGA components site na ikuku nozulu, iji nweta nzube nke kpo oku BGA components, na site na elu na ala na-ekpo ọkụ ikuku ịfụ, nwere ike igbochi sekit osisi na-erughị eru kpo oku deformation.
2. Ngwunye ọkụ infrared nke ala
Infrared kpo oku tumadi na-arụ a preheating ọrụ, wepụ mmiri mmiri na sekit osisi na BGA, na nwekwara ike n'ụzọ dị irè belata okpomọkụ dị iche n'etiti kpo oku center na gburugburu, ibelata ihe gbasara nke puru omume nke sekit osisi deformation.
3. Nkwado na nkwụnye nke BGA rework ọdụ
Akụkụ a na-akwado ma na-edozi bọọdụ sekit ma na-arụ ọrụ dị mkpa iji gbochie nrụrụ nke osisi ahụ.
4. Njikwa okpomọkụ
Mgbe ị na-akwatu na ịgbado ọkụ BGA, e nwere mkpa dị mkpa maka okpomọkụ.Ọ bụrụ na okpomọkụ dị oke elu, ọ dị mfe ịgbanye ihe ndị BGA ọkụ.Ya mere, a na-achịkwa tebụl nrụzi na-enweghị ngwá ọrụ, ma na-anabata njikwa PLC na njikwa kọmputa zuru ezu, nke nwere ike ịchịkwa okpomọkụ na oge.
Mgbe ị na-arụzi BGA site na rework ọdụ, ọ bụ tumadi ịchịkwa okpomọkụ okpomọkụ na igbochi deformation nke sekit osisi.Naanị site n'ime akụkụ abụọ a nke ọma ka enwere ike imeziwanye ọnụego ihe ịga nke ọma nke ịrụzi BGA.
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Oge nzipu: Ọktoba 15-2021