MIG waldi yana amfani da waya ta ƙarfe maimakon tungsten electrode a cikin tocilar walda.Wasu iri daya suke da TIG waldi.Saboda haka, ana narkar da wayar walda ta baka kuma a aika zuwa yankin waldawa.Wutar lantarki tana aika wayar walda daga spool zuwa fitilar walda bisa ga buƙatun walda.

Tushen zafi kuma shine DC arc, amma polarity kawai akasin abin da ake amfani da shi a walda na TIG.Gas ɗin kariya da ake amfani da shi ma ya bambanta.1% oxygen ya kamata a ƙara zuwa argon don inganta kwanciyar hankali na arc.

Har ila yau, akwai wasu bambance-bambance a cikin matakai na asali, kamar canja wurin jet, pulsating jet, canja wuri mai siffar zobe da gajeriyar kewayawa.

Pulse MIG welding murya tace

Pulse MIG waldi hanya ce ta MIG wacce ke amfani da bugun bugun jini don maye gurbin DC da aka saba.

Saboda amfani da bugun bugun jini halin yanzu, baka na bugun bugun jini MIG waldi shine nau'in bugun jini.Idan aka kwatanta da al'ada ci gaba na halin yanzu (pulsating DC) waldi:

1. Faɗin daidaitawa na sigogin walda;

Idan matsakaicin halin yanzu bai kai ƙananan I0 mai mahimmanci na canjin allura ba, ana iya samun canjin allurar muddin ƙwanƙwaran bugun bugun jini ya fi I0 girma.

2. Ana iya sarrafa makamashin Arc daidai da daidai;

Ba wai kawai girman bugun jini ko tushe na yanzu yana daidaitacce ba, amma kuma ana iya daidaita tsawon sa a cikin raka'a na 10-2 s.

3. Excellent goyon bayan waldi ikon bakin ciki farantin da duk matsayi.

Tafkin da aka narkar da shi yana narkewa kawai a cikin lokacin bugun jini na yanzu, kuma ana iya samun crystallization mai sanyaya a cikin ainihin lokacin yanzu.Idan aka kwatanta da ci gaba da walda a halin yanzu, matsakaicin halin yanzu (shigarwar zafi zuwa walda) ya fi ƙanƙanta akan yanayin shigar iri ɗaya.

MIG waldi manufa gyara murya

Daban-daban daga TIG waldi, MIG (MAG) waldi yana amfani da fusible waya walda a matsayin electrode da baka kona tsakanin ci gaba da ciyar waldi waya da waldi a matsayin zafi tushen narke da walda waya da tushe karfe.A lokacin aikin walda, iskar gas ɗin garkuwar tana ci gaba da jigilar zuwa wurin waldawa ta hanyar bututun walda don kare baka, narkakken tafkin da ƙarfen tushe na kusa da ke kusa daga cutarwar iskar da ke kewaye.Ci gaba da narkar da wayar walda za a canja shi zuwa tafkin walda a cikin nau'i na ɗigon ruwa, kuma za a samar da ƙarfe na walda bayan haɗuwa da ƙura tare da narkakkar tushe.

MIG waldi fasalin gyaran murya

⒈ kamar TIG waldi, yana iya walda kusan dukkan karafa, musamman dacewa da walda aluminum da aluminum gami, jan karfe da jan karfe, bakin karfe da sauran kayan.Babu kusan babu iskar shaka da ƙona asara a cikin tsarin walda, kawai ƙaramin adadin asarar evaporation, kuma tsarin ƙarfe yana da sauƙi.

2. Babban yawan yawan aiki

3. MIG waldi na iya zama haɗin baya na DC.Welding aluminum, magnesium da sauran karafa yana da kyau cathode atomization sakamako, wanda zai iya yadda ya kamata cire oxide fim da kuma inganta waldi quality na haɗin gwiwa.

4. Ba a amfani da lantarki na Tungsten, kuma farashin ya yi ƙasa da na TIG waldi;Yana yiwuwa a maye gurbin TIG waldi.

5. Lokacin da MIG waldi aluminum da aluminum gami, sub jet droplet canja wurin za a iya amfani da su inganta ingancin welded gidajen abinci.

⒍ kamar yadda argon is a inert gas kuma ba ya mayar da martani da wani abu, yana da damuwa da tabon mai da tsatsa a saman walda waya da tushe karfe, wanda ke da sauki wajen samar da pores.Wayar walda da kayan aiki dole ne a tsaftace su a hankali kafin waldawa.

3. Canja wurin Droplet a cikin walda na MIG

Droplet canja wuri yana nufin dukan tsari a cikin abin da narkakkar karfe a karshen walda waya ko lantarki Forms droplets karkashin mataki na baka zafi, wanda aka rabu da karshen waldi waya da kuma canjawa wuri zuwa waldi pool a karkashin mataki na aiki. runduna daban-daban.Yana da alaƙa kai tsaye da kwanciyar hankali na tsarin walda, samuwar walda, girman fantsama da sauransu.

3.1 karfi yana shafar canja wurin droplet

Digon da karfen da aka narkar da shi a karshen waya ta walda yana shafar dakaru daban-daban, kuma tasirin dakaru daban-daban kan canjin digo ya sha banban.

⒈ nauyi: a lebur matsayi na walda, da nauyi shugabanci daidai yake da shugabanci na droplet mika mulki don inganta miƙa mulki;Matsayin waldi na sama, yana hana canja wurin ɗigon ruwa

2. Tashin hankali na saman: kula da babban ƙarfin digo a ƙarshen wayar walda yayin walda.The thinner da waldi waya, da sauki droplet mika mulki.

3. Ƙarfin lantarki: ƙarfin da filin maganadisu da kansa ke haifarwa shi ake kira electromagnetic Force, kuma sashin axial ɗinsa koyaushe yana faɗaɗa daga ƙaramin sashe zuwa babban sashe.A cikin walda na MIG, lokacin da halin yanzu ke wucewa ta wurin waldawar waya droplet electrode spot, ɓangaren giciye na madugu yana canzawa kuma alkiblar ƙarfin lantarki shima yana canzawa.A lokaci guda, babban yawan halin yanzu a wurin zai sa ƙarfe ya ƙafe da ƙarfi kuma ya haifar da ƙarfin amsawa akan saman ƙarfe na droplet.Tasirin ƙarfin lantarki akan canja wurin digo ya dogara da siffar baka.

4. Ƙarfin kwararar Plasma: a ƙarƙashin ƙaƙƙarfan ƙarfin lantarki, matsi na hydrostatic da aka haifar ta hanyar arc plasma a cikin hanyar arc axis yana da bambanci da sashin giciye na ginshiƙan baka, wato, a hankali yana raguwa daga ƙarshen walda. waya zuwa saman narkakkar tafkin, wanda shine madaidaicin al'amari don haɓaka canjin digo.

5. Matsin wuri

3.2 halaye canja wurin droplet na MIG waldi

Lokacin waldawar MIG da waldi na MAG, canja wurin droplet galibi yana ɗaukar ɗan gajeren lokaci da canja wurin jet.Ana amfani da gajeriyar walƙiya don bakin ciki farantin ƙarfe mai saurin walƙiya da duk waldi na matsayi, kuma ana amfani da canja wurin jet don walƙiya a kwance da walƙiya fillet na matsakaici da kauri faranti.

Lokacin waldawar MIG, haɗin juzu'i na DC yana ɗaukar asali.Saboda haɗin baya na iya gane kyakkyawan canjin jet, kuma ingantaccen ion yana tasiri magudanar ruwa a ingantacciyar hanyar haɗi, yana haifar da babban matsin lamba don hana sauye-sauyen droplet, ta yadda ingantacciyar hanyar haɗin kai ita ce sauye-sauyen droplet mara kyau.MIG walda bai dace da alternating current saboda narkawar waya na walda ba ta kai kowane rabin zagayowar.

Lokacin da MIG welding aluminum da aluminum gami, saboda aluminum yana da sauƙin oxidize, don tabbatar da tasirin kariya, tsayin baka a lokacin waldawa ba zai iya zama tsayi da yawa ba.Sabili da haka, ba za mu iya ɗaukar yanayin canjin jet tare da babban halin yanzu da dogon baka ba.Idan zaɓaɓɓen halin yanzu ya fi ƙarfin halin yanzu kuma ana sarrafa tsayin baka tsakanin canjin jet da gajeriyar kewayawa, za a sami canjin sub jet.

MIG waldi ne yadu amfani don weld aluminum da aluminum gami workpieces.[1]

Muryar gyara gama gari

▲ gmt-skd11> 0.5 ~ 3.2mm HRC 56 ~ 58 waldi gyara sanyi aiki karfe, karfe stamping mutu, yankan mutu, sabon kayan aiki, forming mutu da workpiece wuya surface yin argon electrode tare da high taurin, sa juriya da kuma high tauri.Yi zafi da zafi kafin gyaran walda, in ba haka ba yana da sauƙi a fashe.

▲ gmt-63 digiri ruwa gefen walda waya> 0.5 ~ 3.2mm HRC 63 ~ 55, yafi amfani ga walda broach mutu, zafi aiki high taurin mutu, zafi ƙirƙira master mutu, zafi stamping mutu, dunƙule mutu, sa-resistant wuya surface, Ƙarfe mai sauri da gyaran ruwa.

▲ gmt-skd61> 0.5 ~ 3.2mm HRC 40 ~ 43 waldi zinc kari, aluminum mutu simintin gyaran kafa, tare da mai kyau zafi juriya da fatattaka juriya, zafi gas mutu, aluminum jan karfe zafi ƙirƙira mold, aluminum jan karfe mutu simintin gyaran kafa, tare da mai kyau zafi juriya. , sa juriya da tsagewar juriya.Gabaɗaya zafi mai zafi ya mutu yana da fashe harsashi na kunkuru, mafi yawan abin da ke haifar da matsananciyar zafi, oxidation na saman ƙasa ko lalatar albarkatun simintin mutuƙar.Ana daidaita maganin zafi zuwa taurin da ya dace don inganta rayuwar sabis ɗin su.Ƙarƙashin ƙarfi ko tsayi mai yawa ba ya aiki.

▲ gmt-hs221 tin tagulla walda waya.Fasalolin ayyuka: Wayar walda ta HS221 waya ce ta musamman ta tagulla wacce ke ɗauke da ƙaramin kwano da siliki.Ana amfani da shi don walda gas da carbon arc waldi na tagulla.Hakanan ana amfani dashi da yawa don brazing jan ƙarfe, ƙarfe, jan ƙarfe nickel gami, da dai sauransu. Hanyoyin waldawa masu dacewa don jan ƙarfe da wayoyi na walƙiya na jan ƙarfe sun haɗa da waldawar argon baka, waldawar oxygen acetylene da walƙiyar carbon arc.

gmt-hs211 yana da kyawawan kayan aikin injiniya.Argon baka walda na jan karfe gami da MIG brazing na karfe.

▲ gmt-hs201, hs212, hs213, hs214, hs215, hs222, hs225 tagulla walda waya.

▲ GMT – 1100, 1050, 1070, 1080 tsantsa waya walda ta aluminum.Halayen ayyuka: waya mai walƙiya mai tsafta don MIG da TIG waldi.Irin wannan nau'in walda yana da launi mai kyau bayan maganin anodic.Ya dace da aikace-aikacen wutar lantarki tare da juriya mai kyau da kuma kyakkyawan aiki.Manufa: Jirgin ruwa ikon kayan aikin wasanni

▲ GMT Semi nickel, tsaftataccen walda na nickel da lantarki

▲ GMT - 4043, 4047 aluminum silicon waldi waya.Performance halaye: amfani da waldi 6 * * * jerin tushe karfe.Yana da ƙarancin kula da tsagewar zafi kuma ana amfani dashi don walda, ƙirƙira da kayan siminti.Amfani: jiragen ruwa, locomotives, sunadarai, abinci, kayan wasanni, molds, furniture, kwantena, kwantena, da dai sauransu.

▲ GMT - 5356, 5183, 5554, 5556, 5A06 aluminum magnesium waldi waya.Halayen ayyuka: wannan wayar walda an tsara ta musamman don walda 5 * * * jerin gami da filler gami waɗanda abun da ke tattare da sinadarai yana kusa da karfen tushe.Yana da kyau juriya na lalata da kuma daidaita launi bayan maganin anodic.Aikace-aikacen: ana amfani da su a cikin kayan wasanni irin su kekuna, masu sikelin aluminium, ɗakunan locomotive, tasoshin matsin sinadarai, samar da soja, ginin jirgi, jirgin sama, da sauransu.

▲ gmt-70n> 0.1 ~ 4.0mm halaye waya waldi da aikace-aikace: bonding na high taurin karfe, fatattaka na zinc aluminum mutu simintin gyaran kafa, walda sake ginawa, alade baƙin ƙarfe / jefa baƙin ƙarfe waldi gyara.Yana iya kai tsaye weld kowane irin simintin ƙarfe / alade baƙin ƙarfe kayan, kuma za a iya amfani da matsayin waldi na mold fasa.Lokacin amfani da walda na simintin ƙarfe, yi ƙoƙarin rage ƙarfin halin yanzu, yi amfani da walda mai ɗan gajeren nisa, fara zafi da ƙarfe, zafi da sanyi sannu a hankali bayan walda.

▲ gmt-60e> 0.5 ~ 4.0mm halaye da kuma aikace-aikace: musamman waldi na high tensile karfe, priming na wuya surface samar, waldi na fasa.High ƙarfi waldi waya tare da babban abun da ke ciki na nickel chromium gami ne musamman amfani da anti fatattaka kasa waldi, ciko da kuma goyon baya.Yana da ƙarfi mai ƙarfi kuma yana iya gyara tsagewar ƙarfe bayan walda.Ƙarfin ƙarfi: 760 n / mm & sup2;Yawan haɓakawa: 26%

▲ gmt-8407-h13> 0.5 ~ 3.2mm HRC 43 ~ 46 mutu simintin gyare-gyare ga tutiya, aluminum, tin da sauran wadanda ba na ƙarfe gami da tagulla gami, wanda za a iya amfani da zafi forging ko stamping mutu.Yana da tsayin daka mai kyau, juriya mai kyau da juriya na thermal juriya, juriya mai laushi mai zafi mai kyau da juriya mai yawan zafin jiki.Ana iya walda shi da gyara shi.Lokacin da aka yi amfani da shi azaman naushi, reamer, wuka mai birgima, wuka mai tsagi, almakashi… Don maganin zafi, ya zama dole don hana decarburization.Idan taurin karfen kayan aiki mai zafi ya yi yawa bayan walda, shima zai karye.

▲ GMT anti fashe goyan bayan waya> 0.5 ~ 2.4mm HB ~ 300 high taurin karfe bonding, m surface goyon baya da fatattaka waldi.Babban goyon bayan walda mai ƙarfi tare da babban abun da ke ciki na nickel chromium gami ana amfani da shi don hana waldawar ƙasa, cikawa da goyan baya.Yana da ƙarfi mai ƙarfi, kuma yana iya gyara fasa, walda da sake gina ƙarfe.

▲ gmt-718> 0.5 ~ 3.2mm HRC 28 ~ 30 mold karfe don filastik kayayyakin kamar manyan kayan gida, kayan wasa, sadarwa, lantarki da kayan wasanni.Filastik allura mold, zafi-resistant mold da lalata-resistant mold da kyau machinability da pitting juriya, m surface mai sheki bayan nika da kuma dogon sabis rayuwa.The preheating zafin jiki ne 250 ~ 300 ℃ da post dumama zafin jiki ne 400 ~ 500 ℃.Lokacin da ake yin gyaran walda mai yawa, ana amfani da hanyar gyaran walda ta baya, wanda ba shi da yuwuwar haifar da lahani kamar rashin fusion da.

▲ gmt-738> 0.5 ~ 3.2mm HRC 32 ~ 35 translucent roba samfurin mold karfe da surface mai sheki, babban mold, filastik mold karfe da hadaddun samfurin siffar da high daidaici.Filastik allura mold, zafi-resistant mold, lalata-resistant mold, mai kyau lalata juriya, kyakkyawan aiki yi, free yankan, polishing da lantarki lalata, mai kyau tauri da kuma sa juriya.The preheating zafin jiki ne 250 ~ 300 ℃ da post dumama zafin jiki ne 400 ~ 500 ℃.Lokacin da ake yin gyaran walda mai yawa, ana amfani da hanyar gyaran walda ta baya, wanda ba shi da yuwuwar haifar da lahani kamar rashin fusion da.

▲ gmt-p20ni> 0.5 ~ 3.2mm HRC 30 ~ 34 roba allura mold da zafi-resistant mold (Copper mold).Alloy tare da ƙarancin sauƙi ga fasa walda an tsara shi tare da abun ciki na nickel na kusan 1%.Ya dace da PA, POM, PS, PE, PP da robobin ABS.Yana da kyawawan kaddarorin gogewa, babu porosity da fasa bayan walda, da kyakkyawan gamawa bayan niƙa.Bayan injin degassing da ƙirƙira, shi ne pre taurare zuwa HRC 33 digiri, da taurin rarraba na sashe ne uniform, da kuma mutu rai ne a kan 300000. A preheating zafin jiki ne 250 ~ 300 ℃ da post dumama zafin jiki ne 400 ~ 500 ℃. .Lokacin da ake yin gyaran walda mai yawa, ana amfani da hanyar gyaran walda ta baya, wanda ba shi da yuwuwar haifar da lahani kamar rashin fusion da.

▲ gmt-nak80> 0.5 ~ 3.2mm HRC 38 ~ 42 roba allura mold da madubi karfe.Babban taurin, kyakkyawan tasirin madubi, EDM mai kyau da kyakkyawan aikin walda.Bayan an nika, yana da santsi kamar madubi.Ita ce mafi ci gaba kuma mafi kyawun filastik mold karfe a duniya.Yana da sauƙin yanke ta hanyar ƙara abubuwa masu sauƙi.Yana da halaye na babban ƙarfi, tauri, juriya da lalacewa kuma babu nakasa.Ya dace da mold karfe na daban-daban m filastik kayayyakin.The preheating zafin jiki ne 300 ~ 400 ℃ da post dumama zafin jiki ne 450 ~ 550 ℃.Lokacin da ake yin gyaran walda mai yawa, ana amfani da hanyar gyaran walda ta baya, wanda ba shi da yuwuwar haifar da lahani kamar rashin fusion da.

▲ gmt-s136> 0.5 ~ 1.6mm HB ~ 400 filastik allura mold, tare da mai kyau lalata juriya da permeability.High tsarki, high specularity, mai kyau polishing, m tsatsa da acid juriya, m zafi magani bambance-bambancen karatu, dace da PVC, PP, EP, PC, PMMA robobi, lalata-resistant da sauki aiwatar kayayyaki da kuma kayan aiki, super madubi lalata-resistant daidaici. kyawon tsayuwa, irin su roba, sassan kyamara, ruwan tabarau, lokuta agogo, da sauransu.

▲ GMT Huangpai karfe> 0.5 ~ 2.4mm HB ~ 200 ƙarfe mold, takalma mold, m karfe waldi, sauki engraving da etching, S45C da S55C karfe gyara.Rubutun yana da kyau, mai laushi, mai sauƙin sarrafawa, kuma ba za a sami pores ba.The preheating zafin jiki ne 200 ~ 250 ℃ da post dumama zafin jiki ne 350 ~ 450 ℃.

▲ GMT BeCu (beryllium jan ƙarfe)> 0.5 ~ 2.4mm HB ~ 300 jan ƙarfe gami mold abu tare da high thermal watsin.Babban ƙari kashi ne beryllium, wanda ya dace da ciki abun da ake sakawa, mold tsakiya, mutu-simintin punches, zafi mai gudu sanyaya tsarin, zafi canja wurin nozzles, m cavities da sa faranti na busa kyawon tsayuwa na filastik allura gyare-gyaren gyare-gyare.Ana amfani da kayan jan ƙarfe na Tungsten a cikin juriya waldi, walƙiya na lantarki, marufi na lantarki da ainihin kayan aikin injiniya.

▲ gmt-cu (argon walda jan karfe)> 0.5 ~ 2.4mm HB ~ 200 wannan tallafin walda yana da aikace-aikace da yawa kuma ana iya amfani dashi don gyaran walda na takardar lantarki, gami da jan ƙarfe, ƙarfe, tagulla, ƙarfe na alade da sassan jan karfe gabaɗaya. .Yana da kyawawan kaddarorin inji kuma ana iya amfani da shi don waldawa da gyaran gyare-gyaren ƙarfe na jan karfe, da walda na ƙarfe, ƙarfe na alade da ƙarfe.

▲ GMT mai karfe walda waya> 0.5 ~ 3.2mm HRC 52 ~ 57 blanking mutu, ma'auni, zane mutu, huda naushi, za a iya yadu amfani da hardware sanyi stamping, hannun ado embossing mutu, janar musamman kayan aiki karfe, sa-resistant, mai sanyaya.

▲ GMT Cr karfe walda waya> 0.5 ~ 3.2mm HRC 55 ~ 57 blanking mutu, sanyi forming mutu, sanyi zane mutu, naushi, high taurin, high bremsstrahlung da kyau waya yankan yi.Yi zafi da zafi kafin gyaran walda, kuma yi aikin dumama bayan gyaran walda.

▲ gmt-ma-1g> 1.6 ~ 2.4mm, super madubi waldi waya, yafi amfani a soja kayayyakin ko kayayyakin da high bukatun.Hardness HRC 48 ~ 50 tsarin karfe maraging, surfacing na aluminum mutu simintin mutuwa, ƙananan matsa lamba mutu, ƙirƙira mutu, blanking mutu da allura mold.Musamman taurara high taurin gami ya dace sosai ga aluminum nauyi mutu simintin gyare-gyare da kuma ƙofar, wanda zai iya tsawanta rayuwar sabis ta 2 ~ 3 sau.Yana iya yin madaidaicin mold da babban madubi (walkin gyaran ƙofa, wanda ba shi da sauƙin amfani da fashe gajiyar thermal).

▲ GMT high gudun karfe walda waya (skh9)> 1.2 ~ 1.6mm HRC 61 ~ 63 high gudun karfe, tare da karko na 1.5 ~ 3 sau na talakawa high gudun karfe.Ya dace da masana'anta yankan kayan aikin, walda gyara broaches, zafi aiki high taurin kayan aikin, mutu, zafi ƙirƙira master ya mutu, zafi stamping mutu, dunƙule mutu, sa-resistant wuya saman, high-gudun karfe, punches, sabon kayan aikin Electronic sassa, thread mirgina mutu, mutu farantin, hakowa nadi, yi mutu, kwampreso ruwa da kuma daban-daban mutu inji sassa, da dai sauransu Bayan Turai masana'antu matsayin, m ingancin iko, high carbon abun ciki, m abun da ke ciki, uniform na ciki tsarin, barga taurin, sa juriya, tauri. , high zafin jiki juriya, da dai sauransu The Properties ne mafi alhẽri daga general kayan da wannan sa.

▲ GMT – Nitrided sassa gyara walda waya> 0.8 ~ 2.4mm HB ~ 300 ya dace da mold da sassa gyara surface bayan nitriding.

▲ aluminum walda wayoyi, yafi 1 jerin tsarki aluminum, 3 jerin aluminum silicon da 5 Series I walda wayoyi, tare da diamita na 1.2mm, 1.4mm, 1.6mm da 2.0mm.

Gyara muryar aikin haɗari

Cututtukan Sana'a

Matsayin lahani na waldan baka na argon ya fi na walƙar lantarki gabaɗaya.Yana iya samar da iskar gas mai cutarwa kamar ultraviolet, infrared radiation, ozone, carbon dioxide da carbon monoxide da ƙura na ƙarfe, wanda zai iya haifar da cututtuka iri-iri: 1) pneumoconiosis welder: dogon lokaci inhalation na babban taro na walda kura zai iya haifar da shi. na kullum fibrosis na huhu da kuma kai ga welder pneumoconiosis, tare da matsakaicin tsawon sabis na shekaru 20.2) Guba manganese: ciwon neurasthenia, rashin aikin jijiya mai cin gashin kansa, da dai sauransu;3) Electro optic ophthalmia: jin jiki na waje, konewa, zafi mai tsanani, photophobia, hawaye, fatar ido, da dai sauransu.

Matakan kariya

(1) don kare idanu daga hasken baka, dole ne a yi amfani da abin rufe fuska tare da ruwan tabarau na musamman a lokacin walda.(2) don hana baka daga ƙone fata, mai walda dole ne ya sa tufafin aiki, safar hannu, murfin takalma, da dai sauransu.(4) gudanar da gwajin lafiyar sana'a kowace shekara.