Yintoni i-Nitrogen Reflow Oven?

I-Nitrogen reflow soldering yinkqubo yokuzalisa igumbi lokuphinda lifakwe ngegesi ye-nitrogen ukuze uthintele ukungena komoya kwi-oven yokubuyisela kwakhona ukuthintela i-oxidation yeenyawo zecandelo ngexesha le-reflow soldering.Ukusetyenziswa kwe-nitrogen reflow ngokuyinhloko kukuphucula umgangatho we-soldering, ukwenzela ukuba i-soldering yenzeke kwindawo enomxholo ophantsi kakhulu we-oksijeni (100 PPM) okanye ngaphantsi, enokuphepha ingxaki ye-oxidation yamacandelo.Ngoko ke umba ophambili we-nitrogen reflow soldering kukuqinisekisa ukuba umxholo we-oxygen uphantsi kangangoko.

Ngokunyuka koxinano lwendibano kunye nokuvela kweTekhnoloji ye-Fine pitch assembly, inkqubo ye-nitrogen reflow kunye nezixhobo ziye zaveliswa, eziye zaphucula umgangatho we-soldering kunye nemveliso ye-reflow soldering kwaye iye yaba ngumkhombandlela wophuhliso lwe-reflow soldering.I-Guangshengde ukuthetha malunga ne-nitrogen reflow soldering ineenzuzo ezilandelayo.

(1) Ukuthintela kunye nokunciphisa i-oxidation.

(2) ukuphucula amandla okumanzisa i-soldering kunye nokukhawulezisa isantya sokumanzisa.

(3) ukunciphisa ukuveliswa kweebhola zenkcenkce, ukuphepha i-bridging, ukufumana umgangatho ongcono we-welding.

Kodwa ukungonakali kwayo kukunyuka okucacileyo kweendleko, oku kunyuka kweendleko kunye nesixa se-nitrogen, xa kufuneka ufikelele kwi-1000ppm umxholo we-oksijini kwisithando somlilo esine-50ppm umxholo we-oxygen, uvavanyo lomxholo we-nitrogen ngokubanzi ngokuxhasa uhlobo lwe-intanethi ye-oxygen content analyzer. , umgaqo-nkqubo wokuvavanya umxholo we-oksijini ngumhlalutyi we-oxygen content analyzer kuqala edibeneyo nge-nitrogen reflow soldering point point, kwaye emva koko uqokelele igesi, emva kovavanyo lwe-oxygen content analyzer Ixabiso lomxholo we-oksijeni lihlalutyelwe ukufumana uluhlu lwe-nitrogen lokucoceka.Nitrogen reflow soldering iindawo zokuqokelelwa kwerhasi ubuncinane enye, iindawo zokuqokelelwa kwegesi ye-nitrogen reflow ephezulu zingaphezulu kwezintathu, iimfuno zemveliso ye-welding zahlukile kwimfuno ye-nitrogen lihlabathi lomahluko.

Ukuqaliswa kwe-nitrogen kwi-reflow soldering, kuyimfuneko ukwenza uhlalutyo lweendleko-inzuzo, izibonelelo zayo zibandakanya imveliso yemveliso, ukuphuculwa komgangatho, ukulungiswa kwakhona okanye ukunciphisa iindleko zokugcinwa, njl njl. Uhlalutyo olupheleleyo nolungenamkhethe luya kubonisa ukuba ukuqaliswa kwe-nitrogen. ayinyusi iindleko zokugqibela, ngokuchaseneyo, sinokuzuza kuyo, ulwelo lwenitrogen lwangoku oluqhelekileyo, kukho oomatshini benitrogen, ukhetho lwenitrogen lubuye lube bhetyebhetye.

Ingakanani iPPM yeoksijini efanelekileyo kwiziko lenitrogen?

Uncwadi olufanelekileyo luthetha ukuba ngaphantsi kwe-1000PPM ukungena kuya kuba kuhle kakhulu, i-1000-2000PPM yeyona nto isetyenziswa ngokuqhelekileyo, kodwa ukusetyenziswa kwangempela kwenkqubo isebenzisa i-99.99% eyi-nitrogen ye-100PPM, kunye ne-99.999% eyi-10PPM, kunye nabanye abathengi. nasekusetyenzisweni kwe-98% ye-nitrogen eyi-20,000PPM.enye ingxelo yenkqubo ye-OSP, i-welding ephindwe kabini, kunye ne-PTH kufuneka ibe ngaphantsi kwe-500PPM, ngelixa ukwanda kwenani lezikhumbuzo ezimileyo kubangelwa ukuchaneka kakubi kokushicilela.

Uninzi lweziko ezisetyenziswayo namhlanje luhlobo lokujikeleza komoya oshushu olunyanzelweyo, kwaye akuwona umsebenzi olula ukulawula ukusetyenziswa kwenitrogen kwiziko elinjalo.Kukho iindlela ezininzi zokunciphisa inani lokusetyenziswa kwe-nitrogen: enye kukunciphisa indawo yokuvula yokungenisa kunye nokuthunyelwa ngaphandle kwesithando somlilo, kubalulekile ukusebenzisa izahlulo, amakhethini okanye izixhobo ezifanayo ukuvimba inxalenye yokungenisa kunye nokuthunyelwa ngaphandle kwendawo. engasetyenziswanga, enye kukusebenzisa umgaqo wokuba i-nitrogen eshushu ilula kunomoya kwaye incinci ukuxuba, xa uyilwa eziko ukwenza igumbi lokufudumeza ngaphezu kokungeniswa kunye nokuthunyelwa kwamanye amazwe aphezulu, ukuze igumbi lokufudumeza lifake. umaleko nitrogen yendalo, leyo kunciphisa isixa imbuyekezo nitrogen kunye nokunciphisa inani nitrogen kwaye yenza kube lula ukuxuba.Oku kunciphisa ubungakanani bembuyekezo yenitrogen kwaye igcine ubunyulu obufunekayo.