Kedu ihe bụ Silkscreen na PCB?
Mgbe ị chepụta ma ọ bụ ịtụ gị bọọdụ sekit e biri ebi , ị kwesịrị ịkwụ ụgwọ mgbakwunye maka silkscreen?Enwere ụfọdụ ajụjụ ị chọrọ ịma ihe bụ silkscreen?Na ka mkpa silkscreen dị na gị PCB Board imepụta ma ọ bụ Mgbakọ Board Circuit Ebipụtara ?Ugbu a ABIS ga-akọwara gị.
Gịnị bụ silkscreen?
Silkscreen bụ oyi akwa trace ink na-eji achọpụta ihe mejupụtara, ihe nlele, akụkụ nke PCB, akara ịdọ aka ná ntị, akara na akara wdg. A na-etinyekarị ihuenyo silk a n'akụkụ akụkụ;Otú ọ dị iji silkscreen n'akụkụ solder abụghịkwa ihe ọhụrụ.Mana nke a nwere ike ịbawanye ọnụ ahịa ya.N'ezie, PCB silkscreen zuru ezu nwere ike inyere ma ndị nrụpụta na injinia aka ịchọta na ịchọpụta ihe niile.
Ink bụ ink epoxy na-adịghị eduzi.A haziri ink nke ejiri mee akara ndị a nke ukwuu.Agba ọkọlọtọ anyị na-ahụkarị bụ oji, ọcha na edo edo.Ngwa PCB na-ejikwa mkpụrụedemede ọkọlọtọ na akwa silkscreen mana ị nwekwara ike họrọ mkpụrụedemede ndị ọzọ na sistemụ ahụ.Maka nyocha silk ọdịnala, ị ga-achọ ihuenyo polyester gbatịpụrụ na okpokolo agba aluminom, onye na-ese foto laser, onye nrụpụta ịgba na oven na-agwọ ọrịa.
Kedu ihe ga-emetụta ihuenyo silk?
Viscosity: Viscosity na-ezo aka na mmegharị nke dị n'etiti oghere mmiri dị n'akụkụ mgbe mmiri na-asọpụta, mgbe ahụ, a ga-emepụta nguzogide esemokwu n'etiti ọkwa mmiri abụọ ahụ;nkeji: Pascal sekọnd (pa.s).
Isi ike: Isi ike nke ink mgbe emechara tupu achịcha bụ 2B, ike nke ink mgbe ekpughere ya bụ 2H, na ike nke ink mgbe emechara achịcha bụ 6H.Isi ike pensụl. Thixotropic: ink bụ gelatinous mgbe ọ na-eguzo, ma viscosity na-agbanwe mgbe a na-emetụ ya aka, nke a makwaara dị ka thixotropic, mgbochi sagging;ọ bụ ihe onwunwe anụ ahụ nke mmiri mmiri, ya bụ, na ọnọdụ nke ịkpali viscosity ya na-adaba, ọ na-enwetakwa njirimara mbụ nke viscosity ya ngwa ngwa mgbe e kwere ka ọ guzoro.Site na-akpali akpali, mmetụta nke thixotropy na-adịru ogologo oge, zuru ezu iji wughachi ihe owuwu dị n'ime ya.Iji nweta nsonaazụ mbipụta ihuenyo dị elu, thixotropy nke ink dị ezigbo mkpa.Karịsịa na usoro nke squeegee, ink na-ama jijiji iji mee ka ọ gbanye.Mmetụta a na-eme ka ọsọ ink na-agafe na ntupu, ma na-akwalite njikọ otu nke ink kewapụrụ site na ntupu.Ozugbo squeegee kwụsịrị ịkwagharị, ink na-alaghachi na ọnọdụ kwụ ọtọ, na viscosity ya na-alaghachi ngwa ngwa na data mbụ achọrọ. Ihe nkiri akọrọ: Ọdịdị ihe nkiri akọrọ:
Ihe nkiri akọrọ nwere akụkụ atọ na ihe mejupụtara:
Ihe nkiri nkwado (ihe nkiri polyester, Polyester)
Ihe nkiri akọrọ na-eguzogide foto
Ihe nkiri mkpuchi (ihe nkiri polyethylene, polyethylene)
Isi ihe
① Ihe nkedo (resin na-emepụta ihe nkiri),
② Foto-polymerization monomer monomer,
③Onye mbido foto,
Plasticiser,
⑤Adhesion Promoter,
⑥ Thermal polymerization inhibitor,
⑦Pigmenti agba,
⑧ ihe mgbaze
A na-ekewa ụdị ihe nkiri akọrọ n'ime ụzọ atọ dị ka mmepụta ihe nkiri akọrọ na usoro iwepụ: ihe mgbaze dabeere na ihe nkiri akọrọ, ihe nkiri akọrọ na-edozi mmiri na peel-apụ akọrọ;dị ka nzube nke akọrọ ihe nkiri, ọ na-ekewa n'ime: iguzogide akọrọ film, masked akọrọ film na Solder mkpuchi akọrọ film.
Sensitivity ọsọ: na-ezo aka ego nke ìhè ike chọrọ maka photoresist na-polymerize na photoresist na-etolite a polymer na a ụfọdụ iguzogide iguzogide n'okpuru irradiation nke ultraviolet ìhè, n'okpuru ọnọdụ nke ofu ìhè isi ike na oriọna anya , Sensitivity ọsọ bụ ekwuputara dị ka ogologo oge mkpughe, oge mkpirisi mkpughe pụtara ọsọ mmata ngwa ngwa.
Mkpebi: na-ezo aka na ọnụọgụ nke ahịrị (ma ọ bụ spacing) nke nwere ike ịmepụta site na ihe nkiri akọrọ na-eguzogide n'ime anya nke 1mm.Enwere ike igosipụta mkpebi ahụ site na nha zuru oke nke ahịrị (ma ọ bụ oghere).
Netwọk yarn:
Njupụta Netwọk:
T nọmba: na-ezo aka ọnụ ọgụgụ nke meshes n'ime 1 cm ogologo.
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