Waldawar baka mai nutsewa waldi ne a ƙarƙashin hanyar konewa Layer. Arc ɗin walda tsakanin waya da waldawar da ke ƙona zafi na baka da na'urar waldawar baka ta ƙare kusa da ƙarfen tushe kuma ta narke, a ci gaba da ciyar da wayar, sannan a ci gaba da tafiya tare da wani yanayi, an cire wani tafki mai ƙarfi da ƙarfe mai ƙarfi don walda narkakkar. solder yana da ƙarfi a cikin wani harsashi wanda ke rufe saman tulun walda, tulin narkakkar tafkin da walƙiya don kariya daga harbi da tafkin ta hanyar kutsawa daga waje.

Arc walda mai nutsewa, waya, waya da mai katse shift irin wannan aikin yawanci ana yin shi ta na'ura, an san shi da waldawar baka. SAW yana da fa'idodi masu zuwa: ① babban digiri na injiniyoyi, don masu walda suna buƙatar ƙananan matakan fasaha; ② walda halin yanzu, za a iya rage weldments tsagi, high waldi yadda ya dace; ③ za a iya raba daga narkakkar solder lamba lamba tare da iska, da m sakamako mai kyau, high weld quality; ④ an rufe shi da arc radiation, mafi kyawun yanayin aiki. A hasara shi ne cewa kawai a cikin lebur matsayi waldi, waldi kayan aiki da tooling kayan aiki bukatar.

High-mita waldi zuwa high mita halin yanzu dumama na workpiece, sa'an nan da ake ji matsa lamba waldi gidajen abinci (duba adadi) an kafa. A high-mita halin yanzu da aka mayar da hankali a kan saman wani madugu da kuma gudana tare da mafi ƙarancin inductance bisa manufa, na yanzu za a mayar da hankali dumama na workpiece surface da za a welded, da thermoplastic jihar an kai, ko partially narkakkar jihar, extruding. da narkakken karfe a kan workpiece da kuma danna karfe oxide, an kafa na welded gidajen abinci. Babban mitar walda na gama gari na 60 zuwa 500 kHz. Babban juriya na walƙiya mai girman mitar walda da walƙiyar ƙara mai mitar mai girma biyu.

① High Frequency Resistance Welding: lamba tare da dabaran ko a matsayin sub-electrode high-mita igiyoyin ruwa a cikin workpiece, dace da ci gaba a tsaye kabu welded bututu da karkace cinya kabu waldi, tukunyar jirgi tube da fin zafi Exchanger karkace welded fin, waje diamita. bututu iya zama 1200 mm da bango kauri na 16 mm, ventral katako waldi lantarki kauri 9.5 mm, high yawan aiki.
② welding induction high-frequency: ƙaramin bututu mai diamita da kauri na bangon aikin ta hanyar induction dumama nada za a iya walda shi zuwa diamita na waje na 9 mm da 1 mm bututu mai bakin ciki. Yawanci ana amfani da shi a cikin ƙananan diamita a tsaye bututu waldi da tagulla kuma za a iya amfani da girth weld, amma amfani da wutar lantarki ya fi girman juriya waldi. Babban sigogin da ke shafar ingancin walƙiya mai ƙarfi shine mitar wutar lantarki mai ƙarfi, ƙarfi, kusurwar aiki, saurin walda da matsa lamba daga matsi, lantarki (ko induction coil) da matsi rollers. Manyan kayan aiki mitar wutar lantarki, da workpiece kafa na'ura da extrusion inji. Barga mai girma-mita waldi ingancin, high yawan aiki da kuma low cost. Domin high-inganci atomatik samar line, samar da ci-gaba hanyoyin tsaga tube.