Ngwa nke nitrogen na ụlọ ọrụ SMT

SMT patch na-ezo aka na mbiri nke usoro usoro usoro dabere na PCB.PCB (Printed Circuit Board) bụ bọọdụ sekit e biri ebi.

SMT bụ mbiri nke Surface Mounted Technology, nke bụ teknụzụ na usoro kachasị ewu ewu na ụlọ ọrụ mgbakọ eletrọnịkị.Eletrọnịkị sekit n'elu mgbakọ teknụzụ (Surface Mount Technology, SMT) na-akpọ elu ugwu ma ọ bụ n'elu arịọnụ technology.Ọ bụ usoro nke ịwụnye ihe ndị na-enweghị ndu ma ọ bụ nke dị mkpụmkpụ (nke a na-akpọ SMC/SMD, nke a na-akpọ ihe mgbawa na Chinese) n'elu bọọdụ sekit e biri ebi (PCB) ma ọ bụ ihe ndị ọzọ.Teknụzụ mgbakọ sekit nke a na-agbakọta site n'ịzụ ahịa site n'iji ụzọ dị ka reflow soldering ma ọ bụ ịgbanye mmiri.

N'ime usoro ịgbado ọkụ SMT, nitrogen dabara nke ukwuu dị ka gas na-echebe.Isi ihe kpatara ya bụ na ike jikọtara ya dị elu, na mmeghachi omume kemịkal ga-eme naanị n'okpuru okpomọkụ dị elu na nrụgide dị elu (> 500C,> 100bar) ma ọ bụ na mgbakwunye nke ike.

Nitrogen generator bụ ihe kacha dabara adaba akụrụngwa mmepụta nitrogen eji na ụlọ ọrụ SMT.Dị ka akụrụngwa mmepụta nitrogen dị na saịtị, ihe na-emepụta nitrogen na-akpaghị aka na enweghị nlekọta, nwere ogologo ndụ ogologo oge, ma nwee obere ọdịda.Ọ na-adaba adaba iji nweta nitrogen, ọnụ ahịa ya bụkwa nke kasị ala n'etiti ụzọ ndị dị ugbu a nke iji nitrogen!

Ndị na-emepụta Nitrogen Mmepụta - Ụlọ ọrụ mmepụta Nitrogen China & Ndị na-ebubata (xinfatools.com)

Ejila nitrogen mee ihe n'ịzụgharị ihe tupu ejie gas inert n'usoro ịgbanye ebili mmiri.Otu n'ime ihe kpatara ya bụ na ụlọ ọrụ IC ngwakọ ejirila nitrogen ogologo oge na-agbagharị agbagharị nke seramiiki ngwakọ elu-elu.Mgbe ụlọ ọrụ ndị ọzọ hụrụ uru nke ngwakọ IC n'ichepụta, ha tinye ụkpụrụ a na PCB soldering.N'ụdị ịgbado ọkụ a, nitrogen na-edochikwa oxygen na sistem.Enwere ike iwebata nitrogen n'ime mpaghara ọ bụla, ọ bụghị naanị na mpaghara nrụgharị, kamakwa maka ime ka usoro ahụ dị jụụ.Ọtụtụ usoro nrụgharị bụzi nitrogen-njikere;Enwere ike ịkwalite ụfọdụ sistemu ngwa ngwa iji ntụtụ gas.

Iji nitrogen na reflow soldering nwere uru ndị a:

‧Iwe mmiri ngwa ngwa nke ọnụ ọnụ na pads

‧ Obere mgbanwe na solderability

‧Mmalite mma nke flux residue na solder nkwonkwo elu

‧ Ngwa ngwa jụrụ oyi na-enweghị ọla kọpa oxidation

Dị ka gas na-echebe, ọrụ nitrogen na-arụ na ịgbado ọkụ bụ ikpochapụ oxygen n'oge usoro ịgbado ọkụ, na-abawanye weldability, na igbochi re-oxidation.Maka ịgbado ọkụ a pụrụ ịdabere na ya, na mgbakwunye na ịhọrọ solder kwesịrị ekwesị, a na-achọkarị nkwado nke flux.The flux tumadi ewepu oxides si ịgbado ọkụ akụkụ nke SMA akụrụngwa tupu ịgbado ọkụ na-egbochi re-oxidation nke ịgbado ọkụ akụkụ, na-etolite magburu onwe wetting ọnọdụ maka solder ka mma solderability..Nnwale egosila na ịgbakwunye formic acid n'okpuru nchebe nitrogen nwere ike nweta mmetụta ndị dị n'elu.Igwe igwe ịgbado ọkụ nke ikuku nitrogen nke na-anabata usoro tankị ịgbado ọkụ dị ka ọwara bụ tumadi tankị nhazi ịgbado ọkụ nke ọwara.Ihe mkpuchi elu bụ nke nwere ọtụtụ iberibe iko a na-emeghe iji hụ na ikuku oxygen enweghị ike ịbanye na tank nhazi.Mgbe etinyere nitrogen n'ime ịgbado ọkụ ahụ, na-eji oke dị iche iche nke gas na ikuku nchebe, nitrogen ga-ebupụ ikuku na mpaghara ịgbado ọkụ ozugbo.N'oge usoro ịgbado ọkụ, osisi PCB ga-anọgide na-ebute oxygen n'ime ebe ịgbado ọkụ, ya mere, a ghaghị ịgbanye nitrogen n'ime ebe ịgbado ọkụ ka ikuku oxygen na-aga n'ihu na ntinye.

Nitrogen gbakwunyere formic acid technology ka a na-ejikarị n'ụdị ọwara ọkụ reflow na ngwakọta infrared emelitere convection.A na-emepe ọnụ ụzọ mbata na mpụta ka oghe oghe, ma enwere ọtụtụ ákwà mgbochi ọnụ ụzọ n'ime nke nwere akara dị mma, nke nwere ike ikpo ọkụ ma kpoo ngwa ngwa.A na-emecha ihicha, ịgbanye nrụgharị na nju oyi n'ọwara ahụ.N'ime ikuku a gwakọtara ọnụ, tapawa ihe eji eme ihe adịghị mkpa ịnwe ihe ndị na-arụ ọrụ, ọ nweghịkwa ihe fọdụrụ na PCB ka a gachara.Belata ọxịdashọn, belata nguzobe nke bọọlụ na-ere ere, ọ nweghịkwa njikọ ọ bụla, nke bara ezigbo uru maka ịgbado ọkụ nke ngwaọrụ dị mma.Ọ na-echekwa akụrụngwa nhicha ma na-echekwa gburugburu ụwa.A na-anata ụgwọ ndị ọzọ nke nitrogen na-enweta n'ụzọ dị mfe site na ego nchekwa ego sitere na nrụrụ mbelata na mkpa ọrụ.

Ịzụ ahịa ebili mmiri na reflow soldering n'okpuru nchebe nitrogen ga-abụ teknụzụ bụ isi na mgbakọ elu.Igwe igwe na-agbagharị mgbanaka nitrogen na-ejikọta ya na teknụzụ formic acid, yana igwe mgbanaka nitrogen reflow na-ejikọta ya na tapawa solder dị oke ala na formic acid, nke nwere ike wepu usoro nhicha.N'ime teknụzụ ịgbado ọkụ SMT nke na-eto ngwa ngwa taa, isi nsogbu zutere bụ otu esi ewepụ oxides, nweta elu dị ọcha nke isi ihe, wee nweta njikọ a pụrụ ịdabere na ya.Dị ka ọ na-adịkarị, a na-eji flux wepụ oxides, mee ka mmiri dị n'elu ka a na-ere ya, belata esemokwu elu nke ihe na-ere ahịa, ma gbochie re-oxidation.Ma n'otu oge ahụ, flux ga-ahapụ ihe fọdụrụ mgbe a na-ere ya, na-akpata mmetụta ọjọọ na PCB components.Ya mere, a ga-ehichapụ osisi sekit nke ọma.Otú ọ dị, nha SMD dị ntakịrị, na ọdịiche dị n'etiti akụkụ ndị na-adịghị ere ahịa na-adịwanye ntakịrị.ihicha nke ọma agaghịzi ekwe omume.Ihe ka mkpa bụ nchekwa gburugburu ebe obibi.CFCs na-emebi oyi akwa ozone ikuku, yana CFC dị ka onye na-ahụ maka nhicha bụ isi ga-amachibido iwu.Ụzọ dị irè isi dozie nsogbu ndị a dị n'elu bụ ịnakwere nkà na ụzụ na-adịghị ọcha na mpaghara mgbakọ kọmputa.Ịtinye obere na ọnụọgụ nke formic acid HCOOH na nitrogen egosila na ọ bụ usoro adịghị ọcha dị irè nke na-achọghị nhicha ọ bụla mgbe ịgbado ọkụ gasịrị, na-enweghị mmetụta ọ bụla ma ọ bụ nchegbu ọ bụla gbasara ihe fọdụrụnụ.