Welding iya amfani da AC ko DC waldi inji.Lokacin amfani da injin walda na DC, akwai ingantacciyar haɗi da juyawa baya.Ya kamata a yi la'akari da abubuwa kamar na'urar lantarki da aka yi amfani da su, yanayin kayan aikin gini, da ingancin walda.
Idan aka kwatanta da wutar lantarki ta AC, wutar lantarki na DC na iya samar da tsayayyen baka da canja wurin digo mai santsi.- Da zarar an kunna baka, DC arc na iya ci gaba da konewa.
Lokacin amfani da walda wutar AC, saboda canjin halin yanzu da ƙarfin wutar lantarki, kuma ana buƙatar kashe baka da sake kunna wuta sau 120 a cikin daƙiƙa guda, baka ba zai iya ci gaba da ƙonewa ba.
Game da ƙananan walda na halin yanzu, DC arc yana da tasiri mai kyau na wetting akan narkakkar weld ɗin kuma yana iya daidaita girman walda, don haka ya dace sosai don walda ƙananan sassa.Ikon DC ya fi dacewa da sama da waldi a tsaye fiye da ikon AC saboda baka na DC ya fi guntu.
Amma wani lokacin busa baka na wutar lantarki na DC babbar matsala ce, kuma mafita ita ce canza wutar lantarki zuwa AC.Domin AC da DC dual-purpodes electrodes tsara don AC ko DC ikon walda, yawancin aikace-aikacen walda suna aiki mafi kyau a ƙarƙashin yanayin wutar lantarki na DC.
(1)Tsarin karfe waldi na yau da kullun
Don na'urorin lantarki na tsarin ƙarfe na yau da kullun da na'urori na acid, ana iya amfani da duka AC da DC.Lokacin amfani da injin walda na DC don walda faranti na bakin ciki, yana da kyau a yi amfani da haɗin baya na DC.
Gabaɗaya, ana iya amfani da haɗin kai tsaye don waldar faranti mai kauri don samun mafi girma shiga.Tabbas, haɗin kai tsaye yana yiwuwa kuma yana yiwuwa, amma don goyan bayan walda na faranti mai kauri tare da tsagi, yana da kyau a yi amfani da haɗin kai tsaye na yanzu.
Na'urorin lantarki gabaɗaya suna amfani da haɗin baya na DC, wanda zai iya rage porosity da spatter.
(2)Molten Argon Arc waldi (MIG waldi)
Karfe baka walda kullum yana amfani da DC reverse dangane, wanda ba kawai stabilizes da baka, amma kuma cire oxide fim a saman da waldi lokacin waldi aluminum.
(3) Tungsten argon baka walda (TIG waldi)
Tungsten argon baka walda na karfe sassa, nickel da kuma gami, jan karfe da kuma gami, tagulla da kuma ta gami za a iya haɗa kawai da kai tsaye halin yanzu.Dalili kuwa shi ne, idan an juyar da haɗin DC kuma an haɗa tungsten electrode zuwa tabbataccen lantarki, zafin wutar lantarki mai kyau zai yi girma, zafi zai yi yawa, kuma tungsten electrode zai narke da sauri.
Narkewa mai saurin gaske, rashin iya sanya baka ya ƙone a tsaye na dogon lokaci, kuma narkakkar tungsten da ke faɗowa cikin narkakken tafkin zai haifar da haɗa tungsten da rage ingancin walda.
(4)CO2 gas kariya waldi (MAG waldi)
Domin kiyaye baka barga, da kyau kwarai weld siffar , da kuma rage spatter, CO2 gas garkuwa waldi kullum yana amfani da DC reverse dangane .Duk da haka, a surfacing waldi da kuma gyara waldi na simintin gyaran gyare-gyare na simintin gyaran gyare-gyare, ya zama dole don ƙara yawan adadin adadin ƙarfe da ragewa. dumama na workpiece, kuma DC tabbatacce dangane da ake amfani da sau da yawa.
Bakin karfe lantarki an fi dacewa da juyar da DC.Idan ba ku da injin walda na DC kuma ingancin buƙatun ba su da yawa, kuna iya amfani da na'urar lantarki irin ta Chin-Ca don walda da injin walda AC.
(6)Gyara walda na simintin ƙarfe
Gyara walda na simintin ƙarfe gabaɗaya yana ɗaukar hanyar juzu'i na DC.A lokacin walda, baka yana da ƙarfi, spatter ƙanƙanta ne, kuma zurfin shigar ciki ba shi da zurfi, wanda kawai ya dace da buƙatun ƙarancin dilution don gyaran walda na simintin ƙarfe don rage samuwar fashewa.
(7) Submerged baka atomatik walda
Za'a iya walda walda ta atomatik tare da wutar lantarki ta AC ko DC.An zaɓi shi bisa ga buƙatun walda na samfur da nau'in juyi.Idan aka yi amfani da ƙananan siliki na nickel-manganese, dole ne a yi amfani da walda na wutar lantarki na DC don tabbatar da kwanciyar hankali na baka don samun mafi girma shiga.
(8) Kwatanta tsakanin AC waldi da DC waldi
Idan aka kwatanta da wutar lantarki ta AC, wutar lantarki na DC na iya samar da tsayayyen baka da canja wurin digo mai santsi.- Da zarar an kunna baka, DC arc na iya ci gaba da konewa.
Lokacin amfani da walda wutar AC, saboda canjin halin yanzu da ƙarfin wutar lantarki, kuma ana buƙatar kashe baka da sake kunna wuta sau 120 a cikin daƙiƙa guda, baka ba zai iya ci gaba da ƙonewa ba.
Game da ƙananan walda na halin yanzu, DC arc yana da tasiri mai kyau na wetting akan narkakkar weld ɗin kuma yana iya daidaita girman walda, don haka ya dace sosai don walda ƙananan sassa.Ikon DC ya fi dacewa da sama da waldi a tsaye fiye da ikon AC saboda baka na DC ya fi guntu.
Amma wani lokacin busa baka na wutar lantarki na DC babbar matsala ce, kuma mafita ita ce canza wutar lantarki zuwa AC.Domin AC da DC dual-purpodes electrodes tsara don AC ko DC walda wutar lantarki, yawancin aikace-aikacen walda suna aiki mafi kyau a ƙarƙashin yanayin wutar lantarki na DC.
A cikin waldawar baka ta hannu, injin walda AC da wasu ƙarin na'urori suna da arha, kuma suna iya guje wa illolin busa baka gwargwadon iko.Amma ban da ƙananan farashin kayan aiki, walda tare da wutar AC ba ta da tasiri kamar wutar lantarki ta DC.
Maɓuɓɓugan wutar walda na Arc (CC) tare da halaye masu gangarewa sun fi dacewa da walƙiyar baka ta hannu.Canjin wutar lantarki mai dacewa da canjin halin yanzu yana nuna raguwa a hankali a halin yanzu yayin da tsayin baka ya karu.Wannan sifa tana iyakance iyakar baka na halin yanzu ko da mai walda yana sarrafa girman narkakken tafkin.
Canje-canje na dindindin a tsayin baka ba zai yuwu ba yayin da mai walda ke motsa wutan lantarki tare da walda, kuma sifa mai jujjuyawa na tushen wutar walda na baka yana tabbatar da kwanciyar hankali yayin waɗannan canje-canje.
Lokacin aikawa: Mayu-25-2023