Me yasareflow solderingake kira "reflow"?Maimaitawa na reflow soldering yana nufin cewa bayan dasolder mannaya kai wurin narkewar manna mai siyarwar, a ƙarƙashin aikin yanayin tashin hankali na tin ɗin ruwa da jujjuyawar ruwa, tin ɗin ruwa ya sake kwarara zuwa fitilun ɓangaren don samar da haɗin gwiwar solder, yana ba da damar da'irar A tsari wanda katakon katako da abubuwan haɗin ke gudana. wanda aka siyar da shi gabaɗaya kuma ana kiransa tsarin “sake kwarara”.
1. Lokacin da PCB hukumar shiga reflow dumama zone, da sauran ƙarfi da gas a cikin solder manna ƙafe.A lokaci guda, jujjuyawar da ke cikin ƙwanƙolin solder yana jika pad ɗin, ƙarshen ɓangaren da fil, kuma manna mai siyarwa yana yin laushi kuma ya faɗi., Rufe kushin, ware kushin da fitilun sassan daga oxygen.
2. Lokacin da PCB kewaye hukumar shiga reflow soldering rufi yankin, da PCB da aka gyara suna da cikakken preheated don hana PCB daga ba zato ba tsammani shiga high zafin jiki yankin na waldi da kuma lalata PCB da aka gyara.
3. Lokacin da PCB ya shiga wurin sayar da reflow, zafin jiki yana tashi da sauri ta yadda mai sayar da kayan ya kai ga narkakkar yanayi, sai ruwan solder ya jika ya watsar da pads, bangaren ya ƙare da fil na PCB, sai ruwan tin ya sake malalowa ya gauraya. don samar da kayan haɗin gwiwa.
4. PCB ya shiga yankin sanyaya reflow, kuma an sake zubar da tin ruwa don ƙarfafa haɗin gwiwar solder ta iska mai sanyi na reflow soldering;a wannan lokacin, an gama sayar da reflow.
Dukkanin tsarin aiki na reflow soldering ba zai iya rabuwa da iska mai zafi a cikin tanderun da aka sake fitarwa ba.Sake dawo da siyarwar ya dogara da aikin kwararar iska mai zafi akan mahaɗin solder.Jelly-kamar juyi yana jure wa yanayin jiki a ƙarƙashin wani matsanancin zafin iska don cimma nasarar siyarwar SMD;reflow soldering ” “Reflow” shi ne saboda iskar gas yana yawo da baya a cikin injin walda don samar da zafin jiki mai yawa don cimma manufar walda, don haka ana kiransa reflow soldering.
Lokacin aikawa: Nov-03-2022