11. E kwesịghị itinye ihe ndị na-akpata nchekasị na nkuku, n'akụkụ, ma ọ bụ nso njikọ, oghere na-arị elu, grooves, cutouts, gashes na nkuku nke mbadamba sekit e biri ebi.Ebe ndị a bụ ebe nrụgide dị elu nke bọọdụ sekit e biri ebi, nke nwere ike ime ka mgbawa ma ọ bụ mgbawa na nkwonkwo na ihe ndị dị na ya.
12. The okirikiri nhọrọ ukwuu nke components ga izute usoro na spacing chọrọ nke reflow soldering na ife soldering.Na-ebelata mmetụta ndò n'oge ire ere.
13. Ekwesịrị idobe oghere oghere sekit nke e biri ebi na nkwado a kapịrị ọnụ iji nọrọ n'ọnọdụ ahụ.
14. Na imewe nke nnukwu ebe e biri ebi sekit osisi nke karịa 500cm2, Iji gbochie bọọdụ sekit a na-ebipụta ka ọ na-ehulata mgbe ị na-agafe ọkụ ọkụ tin, a ga-ahapụ oghere nke 5 ~ 10mm n'obosara n'etiti osisi sekit a na-ebipụta, na ihe ndị ahụ (nwere ike ịga ije) ekwesịghị itinye ya, ya mere, iji gbochie bọọdụ sekit e biri ebi ka ọ na-ehulata mgbe ị na-agafe ọkụ tin.
15. The akụrụngwa okirikiri nhọrọ ukwuu ntụziaka nke reflow soldering usoro.
(1) Nhazi nhazi nke ihe ndị ahụ kwesịrị ịtụle ntụziaka nke bọọdụ sekit a na-ebipụta n'ime ọkụ reflow.
(2) iji mee ka njedebe abụọ nke mgbawa dị n'akụkụ abụọ nke njedebe weld na ihe SMD dị n'akụkụ abụọ nke mmekọrịta pin na-ekpo ọkụ, belata ihe ndị dị n'akụkụ abụọ nke njedebe ịgbado ọkụ adịghị emepụta nrụpụta, mgbanwe. , synchronous okpomọkụ si ịgbado ọkụ ntụpọ dị ka solder ịgbado ọkụ ọgwụgwụ, chọrọ abụọ njedebe nke mgbawa mmiri na e biri ebi sekit osisi ogologo axis kwesịrị perpendicular na ntụziaka nke ebu eriri nke reflow oven.
(3) Ogologo axis nke akụkụ SMD kwesịrị ịdị n'otu na ntụgharị ntụgharị nke ọkụ reflow.Ogologo ogologo nke CHIP components na ogologo axis nke SMD components na nsọtụ abụọ kwesịrị ịdị na ibe ha.
(4) A ezi okirikiri nhọrọ ukwuu imewe nke components kwesịrị ọ bụghị nanị na-atụle uniformity nke okpomọkụ ike, ma na-atụle ntụziaka na usoro nke components.
(5) N'ihi na nnukwu size e biri ebi sekit osisi, iji na-na okpomọkụ na n'akụkụ abụọ nke e biri ebi sekit osisi dị ka o kwere mee, ogologo akụkụ nke sekit osisi e biri ebi kwesịrị ka yiri ntụziaka nke conveyor belt nke reflow. ọkụ.Ya mere, mgbe mpempe akwụkwọ sekit ahụ buru ibu karịa 200mm, ihe ndị a chọrọ bụ ndị a:
(A) ogologo axis nke akụkụ CHIP na nsọtụ abụọ ahụ dị n'akụkụ ogologo nke bọọdụ sekit e biri ebi.
(B) Ogologo ogologo nke akụkụ SMD dị n'akụkụ ogologo nke bọọdụ sekit e biri ebi.
(C) Maka bọọdụ sekit a na-ebipụta na-agbakọta n'akụkụ abụọ, ihe ndị dị n'akụkụ abụọ ahụ nwere otu nhazi ahụ.
(D) Hazie ntụziaka nke components na bọọdụ sekit e biri ebi.A ghaghị ịhazi ihe ndị yiri ya n'otu ntụziaka ahụ dị ka o kwere mee, na ntụziaka e ji mara ya kwesịrị ịbụ otu, iji mee ka ntinye, ịgbado ọkụ na nchọpụta nke components.Ọ bụrụ na electrolytic capacitor positive pole, diode positive pole, transistor single pin end, ntụtụ mbụ nke ntụzịaka nhazi sekit agbakwunyere na-agbanwe agbanwe dịka o kwere mee.
16. Iji gbochie obere sekit n'etiti n'ígwé mere site na-emetụ ndị e biri ebi waya n'oge PCB nhazi, conductive ụkpụrụ nke n'ime oyi akwa na elu oyi akwa kwesịrị karịa 1.25mm si PCB onu.Mgbe etinyere waya ala na nsọtụ PCB dị n'èzí, waya ala nwere ike ịnọ n'akụkụ ọnụ.N'ihi na PCB elu ọnọdụ na e nwere n'ihi structural chọrọ, components na e biri ebi conductors ekwesịghị etinye na underside solder pad ebe nke SMD/SMC na-enweghị site oghere, nke mere iji zere ntughari nke solder mgbe kpụ ọkụ n'ọnụ na remelted na ifegharị. soldering mgbe reflow soldering.
17. Nwụnye oghere nke components: Opekempe ntinye ntinye nke ihe mejupụtara ga-enwerịrị ihe achọrọ nke mgbakọ SMT maka nrụpụta, nnwale, na ịnọgide na-enwe ike.
Oge nzipu: Dec-21-2020