Dalilan rashin kyawun walda mai sanyi ko jika da waldar da ba ta dawo da gubar ba

A mai kyau reflux kwana ya kamata a zazzabi kwana da za su iya cimma mai kyau waldi na daban-daban surface Dutsen aka gyara a kan PCB jirgin da za a welded, da solder hadin gwiwa ba kawai yana da kyau bayyanar ingancin amma kuma mai kyau na ciki ingancin.Domin cimma kyakkyawar madaidaicin madaidaicin zafin jiki mara gubar, akwai ƙayyadaddun alaƙa tare da duk hanyoyin samarwa na sake gudana mara gubar.A ƙasa, Chengyuan Automation zai yi magana game da dalilan rashin kyawun walda mai sanyi ko jika na wuraren sake kwarara mara gubar.

A cikin tsarin walda wanda ba shi da gubar, akwai bambanci mai mahimmanci tsakanin ɗumbin haske na haɗin gwiwar mai sake kwararar gubar da kuma abin ban mamaki wanda ya haifar da ƙarancin narkewar manna.Lokacin da jirgin mai rufi da solder manna wuce ta cikin tanderun high zafin jiki gas, idan ganiya zafin jiki na solder manna ba za a iya isa ko reflux lokaci bai isa ba, da aiki na juyi ba za a saki, da kuma oxides da kuma sauran abubuwa a saman solder kushin da bangaren fil ba za a iya tsarkake, haifar da matalauta wetting a lokacin gubar-free reflow waldi.

A mafi tsanani halin da ake ciki shi ne, saboda rashin isasshen saitin zafin jiki, da walda zafin jiki na solder manna a saman da kewaye hukumar ba zai iya kai ga zafin jiki da cewa dole ne a samu ga karfe solder a cikin solder manna ya sha lokaci canji, wanda. yana kaiwa ga yanayin walƙiya mai sanyi a wurin sake kwarara walda ba tare da gubar ba.Ko kuma saboda zafin jiki bai isa ba, ba za a iya jujjuya wasu saura ba a cikin manna mai siyar, kuma yana haɗewa a cikin haɗin gwiwar saida lokacin da aka sanyaya, wanda ke haifar da ƙyalli na haɗin gwiwa na solder.A daya hannun, saboda da matalauta Properties na solder manna kanta, ko da sauran dacewa yanayi iya saduwa da bukatun da zafin jiki kwana na gubar-free reflow waldi, da inji Properties da bayyanar da solder hadin gwiwa bayan waldi ba zai iya saduwa da bukatun tsarin walda.