Gukoresha azote mu nganda za SMT

SMT patch bivuga mu magambo ahinnye yuruhererekane rwibikorwa bishingiye kuri PCB.PCB (Icapiro ryumuzunguruko) ni ikibaho cyumuzingo cyacapwe.

SMT ni impfunyapfunyo ya Surface Mounted Technology, ikaba ari ikoranabuhanga rizwi cyane kandi rikoreshwa mubikorwa byo guteranya ibikoresho bya elegitoroniki.Ikoranabuhanga rya elegitoroniki yo guteranya tekinoroji (Surface Mount Technology, SMT) yitwa tekinoroji yo hejuru cyangwa tekinoroji.Nuburyo bwo gushiraho ibice bitayobora cyangwa bigufi-biganisha hejuru yubuso (byitwa SMC / SMD, bita chip ibice mu gishinwa) hejuru yikibaho cyacapwe (PCB) cyangwa izindi substrate.Ikoranabuhanga ryo guteranya umuzunguruko riteranijwe no kugurisha ukoresheje uburyo nko kugurisha ibicuruzwa cyangwa kugurisha ibicuruzwa.

Mubikorwa byo gusudira SMT, azote irakwiriye cyane nka gaze ikingira.Impamvu nyamukuru nuko ingufu zayo zifatika ari nyinshi, kandi reaction ya chimique izabaho gusa munsi yubushyuhe bwinshi numuvuduko mwinshi (> 500C,> 100bar) cyangwa hiyongereyeho ingufu.

Amashanyarazi ya azote kuri ubu ni ibikoresho bikenerwa na azote bikoreshwa mu nganda za SMT.Nkibikoresho byo gukora azote ku mbuga, generator ya azote irikora rwose kandi ititabweho, ifite igihe kirekire, kandi ifite igipimo gito cyo gutsindwa.Nibyiza cyane kubona azote, kandi ikiguzi nacyo kiri hasi muburyo bugezweho bwo gukoresha azote!

Abakora Azote - Abashinwa Uruganda rutunganya azote & abatanga ibicuruzwa (xinfatools.com)

Azote yakoreshejwe mu kugurisha ibicuruzwa mbere yuko imyuka ya inert ikoreshwa mugikorwa cyo kugurisha umuraba.Bimwe mubyabiteye nuko inganda za Hybrid IC zimaze igihe kinini zikoresha azote muguhindura ibicuruzwa byo hejuru ya ceramic Hybrid.Mugihe andi masosiyete yabonye ibyiza byo gukora IC bivangavanze, bakoresheje iri hame mugurisha PCB.Muri ubu bwoko bwo gusudira, azote nayo isimbuza ogisijeni muri sisitemu.Azote irashobora kwinjizwa muri buri gace, atari ahantu hagaragara gusa, ariko no gukonjesha inzira.Sisitemu nyinshi zo kugarura ubu ziteguye azote;sisitemu zimwe zirashobora kuzamurwa byoroshye kugirango ukoreshe inshinge.

Gukoresha azote mu kugurisha ibicuruzwa bifite inyungu zikurikira:

WetGuhindura vuba ama terefone na padi

Impinduka nke mubishobora kugurishwa

Kugaragara neza kwa flux ibisigara hamwe nugurisha hamwe

Gukonjesha vuba nta okiside y'umuringa

Nka gaze ikingira, uruhare rwa azote mu gusudira ni ugukuraho ogisijeni mugihe cyo gusudira, kongera gusudira, no kwirinda kongera okiside.Kubudozi bwizewe, usibye guhitamo uwagurishije bikwiye, ubufatanye bwa flux burasabwa muri rusange.Amazi akuramo cyane cyane okiside mu gice cyo gusudira igice cya SMA mbere yo gusudira kandi ikarinda kongera okiside igice cyo gusudira, kandi ikora uburyo bwiza bwo guhanagura kubagurisha kugirango barusheho gukomera..Ibizamini byagaragaje ko kongeramo aside irike mu kurinda azote bishobora kugera ku ngaruka zavuzwe haruguru.Imashini yo kugurisha impeta ya azote ifata imashini yo gusudira yo mu bwoko bwa tunnel ahanini ni ikigega cyo gutunganya gusudira.Igifuniko cyo hejuru kigizwe nibice byinshi byikirahure gishobora gufungura kugirango ogisijeni idashobora kwinjira mu kigega cyo gutunganya.Iyo azote yinjijwe mu gusudira, ikoresheje ibipimo bitandukanye bya gaze ikingira ikirere n'umwuka, azote izahita yirukana umwuka mu gace ko gusudira.Mugihe cyo gusudira, ikibaho cya PCB kizahora kizana ogisijeni ahantu ho gusudira, bityo azote igomba guhora yinjizwa ahantu ho gusudira kugirango ogisijeni ikomeze gusohoka hanze.

Azote wongeyeho tekinoroji ya acide ikoreshwa mubusanzwe itanura ryubwoko bwa tunnel hamwe na infragre yongerewe imbaraga ya convection ivanze.Kwinjira no gusohoka muri rusange byateguwe kugirango bikingurwe, kandi hariho imyenda myinshi yumuryango imbere hamwe na kashe nziza, ishobora gushyushya no gushyushya ibice.Kuma, kwerekana ibicuruzwa no gukonjesha byose byarangiye muri tunnel.Muri iki kirere kivanze, paste yo kugurisha yakoreshejwe ntigomba kuba irimo activateur, kandi ntagisigara gisigaye kuri PCB nyuma yo kugurisha.Mugabanye okiside, gabanya imiterere yimipira yagurishijwe, kandi nta kiraro gihari, gifasha cyane gusudira ibikoresho byiza.Ikiza ibikoresho byogusukura kandi irengera ibidukikije byisi.Amafaranga yinyongera yatanzwe na azote asubizwa muburyo bworoshye kubitsa amafaranga yaturutse ku nenge zagabanijwe hamwe nakazi gasabwa.

Kugurisha imiraba no kugurisha kugurisha munsi ya azote bizahinduka ikoranabuhanga nyamukuru muguteranya hejuru.Imashini yo kugurisha impeta ya azote ihujwe nubuhanga bwa acide formique, kandi imashini yo kugurisha impeta ya azote ihujwe na paste yibikorwa byo kugurisha cyane hamwe na acide ya formic, ishobora gukuraho inzira yisuku.Muri iki gihe iterambere ryihuse rya tekinoroji ya SMT yo gusudira, ikibazo nyamukuru cyahuye nacyo ni uburyo bwo kuvanaho okiside, kubona ubuso bwuzuye bwibikoresho fatizo, no kugera kubufatanye bwizewe.Mubisanzwe, flux ikoreshwa mugukuraho okiside, guhanagura ubuso bugurishwa, kugabanya ubukana bwubuso bwuwagurishije, no kwirinda kongera okiside.Ariko icyarimwe, flux izasiga ibisigara nyuma yo kugurisha, bitera ingaruka mbi kubice bya PCB.Kubwibyo, ikibaho cyumuzunguruko kigomba gusukurwa neza.Nyamara, ingano ya SMD ni nto, kandi ikinyuranyo hagati yibice bitagurishwa kiragenda kiba gito.Isuku ryuzuye ntirishoboka.Icy'ingenzi ni ukurengera ibidukikije.CFCs itera kwangirika kurwego rwa ozone yo mu kirere, kandi CFCs nkibikoresho nyamukuru byogusukura bigomba guhagarikwa.Inzira ifatika yo gukemura ibibazo byavuzwe haruguru ni ugukoresha tekinoroji idafite isuku mubijyanye no guteranya ibikoresho bya elegitoroniki.Ongeramo urugero ruto kandi rwinshi rwa acide formic HCOOH muri azote byagaragaye ko ari tekinike nziza idafite isuku idasaba isuku iyo ari yo yose nyuma yo gusudira, nta ngaruka mbi cyangwa impungenge zatewe n’ibisigazwa.