TIG
1.Aikace-aikace :
TIG waldi(tungsten argon arc welding) hanya ce ta walda wacce ake amfani da tsarkin Ar a matsayin garkuwar iskar gas sannan ana amfani da wayoyin tungsten a matsayin electrodes.Ana ba da waya walda TIG a madaidaiciya madaidaiciya na takamaiman tsayi (yawanci lm).Inert gas garkuwar baka waldi ta amfani da tungsten mai tsafta ko kunna tungsten (tungsten mai ban tsoro, cerium tungsten, zirconium tungsten, lanthanum tungsten) azaman lantarki mara narkewa, ta amfani da baka tsakanin injin tungsten da kayan aikin don narke karfe don samar da walda.Wutar lantarki tungsten baya narke yayin aikin walda kuma yana aiki azaman lantarki ne kawai.A lokaci guda kuma, ana ciyar da argon ko helium a cikin bututun wutar lantarki don kariya.Hakanan za'a iya ƙara ƙarin karafa kamar yadda ake so.Kasashen duniya da aka sani daTIG waldi.
2. Amfani:
Babban fa'idar hanyar walda ta TIG ita ce tana iya walda abubuwa da yawa.Ciki har da workpieces tare da kauri na 0.6mm da sama, kayan sun hada da gami karfe, aluminum, magnesium, jan karfe da kuma gami, launin toka simintin baƙin ƙarfe, daban-daban tagulla, nickel, azurfa, Titanium da gubar.Babban filin aikace-aikace ne waldi na bakin ciki da kuma matsakaici kauri workpieces a matsayin tushen wucewa a kan thicker sassan.
3. Hankali:
A. Garkuwar iskar gas buƙatun: lokacin walda halin yanzu yana tsakanin 100-200A, shine 7-12L / min;lokacin walda halin yanzu tsakanin 200-300A, shi ne 12-15L / min.
B. The protruding tsawon tungsten lantarki ya kamata a matsayin takaice kamar yadda zai yiwu dangane da bututun ƙarfe, da baka tsawon ya kamata a kullum sarrafa a 1-4mm (2-4mm ga waldi carbon karfe; 1-3mm ga waldi low-gawa karfe. da bakin karfe).
C. Lokacin da iska ya fi 1.0m/s, ya kamata a dauki matakan hana iska;kula da samun iska don guje wa rauni ga mai aiki.
D. Tsattsauran cire mai, tsatsa da datti daga wurin walda yayin walda.
E. Ana ba da shawarar yin amfani da wutar lantarki na DC tare da halayen waje masu tsayi, kuma sandar tungsten yana da kyau sosai.
F. Lokacin walda ƙaramin gami da ƙarfe sama da 1.25% Cr, gefen baya kuma yakamata a kiyaye shi.
MIG
1. Aikace-aikace:
Farashin MIGshi ne narkewa iyakacin duniya inert gas kariya waldi.Yana amfani da Ar da sauran iskar gas a matsayin babban iskar kariya, gami da tsaftataccen Ar ko Ar gas gauraye da ƙaramin adadin iskar gas (kamar O2 ƙasa da 2% ko CO2 ƙasa da 5%) don narkewa.Hanyar walda na baka waldi.Ana ba da waya ta MIG a cikin coils ko coils a cikin yadudduka.Wannan hanyar walda tana amfani da baka mai ƙonawa tsakanin wayar walda da ake ci gaba da ciyar da ita da kuma kayan aikin a matsayin tushen zafi, kuma ana amfani da iskar da aka fitar daga bututun wutar lantarki don kare baka don waldawa.
2. Amfani:
Ya dace don waldawa a wurare daban-daban, kuma yana da saurin walda da sauri da ƙimar ajiya mafi girma.Weld ɗin baka mai garkuwar MIG ya dace da waldar yawancin manyan karafa, gami da ƙarfen carbon da ƙarfe na gami.MIG arc walda ya dace da bakin karfe, aluminum, magnesium, jan karfe, titanium, picks da nickel gami.Hakanan za'a iya yin waldawar tabo ta Arc ta amfani da wannan hanyar walda.
3. Hankali:
A. Matsakaicin kwararar iskar gas mai karewa ya fi dacewa 20-25L/min.
B. Tsawon baka gabaɗaya ana sarrafa shi a kusan 4-6mm.
C. Tasirin iska ba shi da kyau musamman ga walda.Lokacin da saurin iska ya fi 0.5m/s, yakamata a ɗauki matakan hana iska;kula da samun iska don guje wa rauni ga mai aiki.
D.A amfani da pulsed baka halin yanzu iya samun barga SPRAY baka, musamman dace da waldi na bakin karfe, bakin ciki farantin, a tsaye waldi da surfacing waldi.
E. Da fatan za a yi amfani da haɗin iskar gas na Ar + 2% O2 don weld ultra-low carbon bakin karfe, kar a yi amfani da Ar da CO2 cakuda walda karfe.
F. A cire mai, tsatsa da ƙazantar damshi a wurin walda a lokacin walda.
Lokacin aikawa: Afrilu-25-2023