Iyini i-Nitrogen Reflow Oven?

I-Nitrogen reflow soldering inqubo yokugcwalisa igumbi lokugeleza kabusha ngegesi ye-nitrogen ukuze kuvinjwe ukungena komoya kuhhavini ogelezayo ukuze kuvinjwe i-oxidation yezingxenye zezinyawo ngesikhathi sokuphinda kuhlanganiswe.Ukusetshenziswa kokugeleza kabusha kwe-nitrogen ikakhulukazi ukuthuthukisa ikhwalithi ye-solder, ukuze i-soldering yenzeke endaweni enokuqukethwe kwe-oxygen ephansi kakhulu (100 PPM) noma ngaphansi, okungagwema inkinga ye-oxidation yezingxenye.Ngakho-ke indaba eyinhloko ye-nitrogen reflow soldering ukuqinisekisa ukuthi okuqukethwe komoyampilo kuphansi ngangokunokwenzeka.

Ngokukhula komthamo wokuhlanganisa kanye nokuvela kobuchwepheshe bokuhlanganiswa kwe-Fine pitch, inqubo yokugeleza kabusha kwe-nitrogen kanye nemishini iye yakhiqizwa, okuthuthukise izinga lokudayiswa kanye nesivuno sokuphinda kufakwe i-reflow soldering futhi isiphenduke inkomba yokuthuthukiswa kwe-reflow soldering.I-Guangshengde ukukhuluma nge-nitrogen reflow soldering inezinzuzo ezilandelayo.

(1) Ukuvimbela nokunciphisa i-oxidation.

(2) thuthukisa amandla okumanzisa ama-solder futhi usheshise isivinini sokumanzisa.

(3) ukunciphisa isizukulwane amabhola tin, ukugwema ibhuloho, ukuze uthole izinga elingcono Welding.

Kodwa ukonakala kwayo ukukhuphuka okusobala kwezindleko, lokhu kukhuphuka kwezindleko nenani le-nitrogen, lapho udinga ukufinyelela okuqukethwe kwe-oxygen engu-1000ppm esithandweni ngokuqukethwe kwe-oxygen engu-50ppm, ukuhlolwa kokuqukethwe kwe-nitrogen jikelele ngokusekela uhlobo lwe-inthanethi lokuhlaziya okuqukethwe kwe-oxygen. , umgomo wokuhlolwa kokuqukethwe komoyampilo ungowokuhlaziya okuqukethwe komoyampilo okuxhunywe okokuqala ngendawo yokuqoqa i-nitrogen reflow soldering, bese iqoqa igesi, ngemva kokuhlolwa kokuhlaziya okuqukethwe komoya-mpilo Inani lokuqukethwe komoyampilo liyahlaziywa ukuze kutholwe ububanzi bobumsulwa bokuqukethwe kwe-nitrogen.I-nitrogen reflow soldering gas izindawo zokuqoqa okungenani zinendawo eyodwa yokuqoqwa kwegesi ye-nitrogen reflow soldering eneziphetho ezingaphezu kwezintathu, izidingo zomkhiqizo wokushisela zihlukile ngesidingo se-nitrogen wumehluko wezwe.

Ukuze kwethulwe i-nitrogen ekuthengiseni okugeleza kabusha, kuyadingeka ukwenza ukuhlaziywa kwezindleko-inzuzo, izinzuzo zayo zihlanganisa isivuno somkhiqizo, ukuthuthukiswa kwekhwalithi, ukucushwa kabusha kwezindleko noma ukuncishiswa kwezindleko zokunakekela, njll. Ukuhlaziya okuphelele nokungachemi ngokuvamile kuzoveza ukuthi ukwethulwa kwe-nitrogen. akukhulisi izindleko zokugcina, ngokuphambene nalokho, singazuza kukho, i-nitrogen yamanzi evamile yamanje, kunemishini ye-nitrogen, ukukhethwa kwe-nitrogen nakho kuvumelana nezimo.

Ingakanani i-PPM yomoya-mpilo efanele esithandweni senitrogen?

Izincwadi ezifanele zithi ukungena ngaphansi kwe-1000PPM kuzoba kuhle kakhulu, i-1000-2000PPM iyona esetshenziswa kakhulu, kodwa ukusetshenziswa kwangempela kwenqubo eningi kusetshenziswa i-99.99% eyi-nitrogen engu-100PPM, ngisho ne-99.999% eyi-10PPM, futhi amanye amakhasimende ngisho nasekusetshenzisweni kwe-98% ye-nitrogen eyi-20,000PPM.enye inqubo ye-OSP yesitatimende, i-welding ephindwe kabili, ene-PTH kufanele ibe ngaphansi kwe-500PPM, kuyilapho ukwanda kwenani lezikhumbuzo ezimile kubangelwa ukunemba okungalungile kokuphrinta.

Izithando eziningi ezisetshenziswa namuhla ziwuhlobo lokujikeleza komoya oshisayo ngempoqo, futhi akuwona umsebenzi olula ukulawula ukusetshenziswa kwe-nitrogen ezithandweni ezinjalo.Kunezindlela eziningana zokunciphisa inani lokusetshenziswa kwe-nitrogen: enye ukunciphisa indawo yokuvula yokungenisa nokuthumela ngaphandle kwesithando somlilo, kubalulekile ukusebenzisa ama-partitions, amakhethini noma amadivaysi afanayo ukuze uvimbele ingxenye yokungenisa nokuthumela ngaphandle kwesikhala. engasetshenzisiwe, enye iwukusebenzisa isimiso sokuthi ungqimba lwe-nitrogen eshisayo lulula kunomoya futhi mancane amathuba okuba luxube, lapho uklama isithando somlilo ukwenza igumbi lokushisa kunokuba ukungenisa nokuthekelisa kuphezulu, ukuze igumbi lokushisa lidale. ungqimba lwe-nitrogen lwemvelo, olunciphisa inani lesinxephezelo se-nitrogen futhi lunciphise inani le-nitrogen futhi lwenza kube lula ukuxutshwa.Lokhu kunciphisa inani lesinxephezelo se-nitrogen futhi kugcina ubumsulwa obudingekayo.