Yadda za a rage surface tashin hankali da danko a PCBA soldering?

I. Matakan canza tashin hankali da danko

Danko da surface tashin hankali ne da muhimmanci kaddarorin solder.Kyakkyawan solder ya kamata ya sami ƙananan danko da tashin hankali lokacin narkewa.Rashin tashin hankali shine yanayin kayan abu, ba za a iya kawar da shi ba, amma ana iya canza shi.

1.The main matakan rage surface tashin hankali da danko a PCBA soldering ne kamar haka.

Ƙara yawan zafin jiki.Haɓaka zafin jiki zai iya ƙara nisa na ƙwayoyin cuta a cikin narkakken solder kuma ya rage ƙarfin nauyi na ƙwayoyin cuta a cikin sodar ruwa a kan ƙwayoyin saman.Sabili da haka, haɓaka yanayin zafi zai iya rage danko da tashin hankali.

2. Tsarin tashin hankali na sn yana da girma, kuma ƙari na PB na iya rage tashin hankali.Ƙara abun ciki na gubar a cikin Sn-Pb solder.Lokacin da abun ciki na Pb ya kai 37%, tashin hankali yana raguwa.

3. Ƙara wakili mai aiki.Wannan zai iya rage girman tashin hankali na solder yadda ya kamata, amma kuma don cire saman oxide Layer na solder.

Amfani da nitrogen kariya pcba waldi ko injin walda zai iya rage high-zazzabi hadawan abu da iskar shaka da kuma inganta wettability.

II. Matsayin tashin hankali a cikin walda

Tashin hankali na saman ƙasa da ƙarfin jika ta gaba ɗaya, don haka tashin hankali na saman yana ɗaya daga cikin abubuwan da ba su da amfani ga jika.

Kosake kwararatanda, igiyar ruwa solderinginjiko manual soldering, surface tashin hankali ga samuwar mai kyau solder gidajen abinci ne unfavorable dalilai.Duk da haka, a cikin SMT jeri tsari reflow soldering surface tashin hankali za a iya sake amfani da.

Lokacin da solder manna ya kai ga narkewar zafin jiki, a karkashin mataki na daidaitaccen tashin hankali surface, zai haifar da kai-matsayin sakamako (Self Alignment), wato, a lokacin da bangaren jeri matsayi yana da kananan sabawa, karkashin mataki na surface tashin hankali. Za a iya mayar da bangaren kai tsaye zuwa maƙasudin matsayi.

Saboda haka tashin hankali na saman yana sa tsarin sake kwarara don hawa daidaitattun buƙatun da aka fi sani da sako-sako, in mun gwada da sauƙin gane babban aiki da sauri.

A lokaci guda kuma shi ne saboda "sake kwarara" da "kai-wuri sakamako" halayyar, da SMT re-flow soldering tsari abu kushin zane, da bangaren daidaitawa da sauransu yana da mafi m bukatar.

Idan surface tashin hankali ba daidaita, ko da jeri matsayi ne sosai m, bayan waldi zai kuma bayyana bangaren matsayi diyya, a tsaye abin tunawa, bridging da sauran waldi lahani.

Lokacin sayar da igiyar igiyar ruwa, saboda girman da tsayin jikin bangaren SMC/SMD da kansa, ko kuma saboda babban bangaren da ke toshe gajeriyar bangaren da kuma toshe magudanar ruwan tin mai zuwa, da tasirin inuwar da ke haifar da tashin hankali na tin. kwarara, ruwan solder ba za a iya kutsawa cikin bayan sashin jiki don samar da wurin toshe kwarara ba, yana haifar da yabo na solder.

SiffofinNeoDen IN6 Injin Sayar da Reflow

NeoDen IN6 yana ba da ingantaccen siyarwar sake kwarara don masana'antun PCB.

Tsarin tebur na samfurin ya sa ya zama cikakkiyar mafita don layin samarwa tare da buƙatu masu yawa.An ƙirƙira shi tare da sarrafa kansa na ciki wanda ke taimakawa masu aiki don samar da ingantaccen siyar da kayan aiki.

Sabon samfurin ya ƙetare buƙatun buƙatun naúrar tubular, wanda ke ba da ko da rarraba yanayin zafia ko'ina cikin reflow tanda.Ta hanyar sayar da PCBs a cikin ko da convection, duk abubuwan da aka gyara ana dumama su daidai gwargwado.

Ƙirar tana aiwatar da farantin dumama na aluminum wanda ke ƙara yawan ƙarfin makamashi na tsarin.Tsarin tace hayaki na ciki yana inganta aikin samfur kuma yana rage fitarwa mai cutarwa, shima.

Ana iya adana fayilolin aiki a cikin tanda, kuma duka tsarin Celsius da Fahrenheit suna samuwa ga masu amfani.Tanda yana amfani da tushen wutar lantarki 110/220V AC kuma yana da babban nauyi 57kg.

An gina NeoDen IN6 tare da ɗakin dumama alloy na aluminum.