Menene waldar baka?

Electrode arc walda ita ce hanyar walda wacce aka fi amfani da ita wajen samar da masana'antu.Ƙarfen ɗin da za a yi walda shi ne sandar igiya ɗaya, kuma wutar lantarki ita ce ɗayan sandar.Lokacin da sandunan biyu suna kusa da juna, ana haifar da baka.Ana amfani da zafin da ake samu ta hanyar fitar da baka (wanda aka fi sani da arc combustion) don haɗa wutar lantarki tare da kayan aikin narke juna da samar da walda bayan haɗawa, don samun tsarin walda tare da haɗin gwiwa mai ƙarfi.

 Tarihin walda-Tianqian

Hoto 1. Tarihin walda

Takaitaccen tarihin

Bayan gwaje-gwajen walda da yawa a farkon karni na 19, wani Bature mai suna Willard ya fara samun takardar shaidar yin walda ta baka a shekara ta 1865. Ya yi amfani da wutar lantarki ya ratsa ta cikin kananan guda biyu na karfe don samun nasarar hada su, kuma bayan kimanin shekaru ashirin, wani dan kasar Rasha. mai suna Bernard ya sami takardar izini don tsarin waldawar baka.Ya kiyaye baka tsakanin sandar carbon da kayan aiki.Lokacin da aka yi amfani da baka da hannu ta hanyar haɗin gwiwar kayan aikin, an haɗa kayan aikin da za a yi wa walda tare.A cikin 1890s, an ƙera ƙaƙƙarfan ƙarfe a matsayin electrode, wanda aka cinye a cikin narkakken tafkin kuma ya zama wani ɓangare na ƙarfe na walda.Koyaya, iskar oxygen da nitrogen a cikin iska sun haifar da oxides masu cutarwa da nitrides a cikin ƙarfen walda., Ta haka yana haifar da rashin ingancin walda.

A farkon karni na 20, an fahimci mahimmancin kare baka don guje wa shigar da iska, kuma yin amfani da zafi na arc don lalata rufin cikin lantarki na garkuwar gas mai kariya ya zama hanya mafi kyau.A tsakiyar shekarun 1920, an samar da na'urar da aka lullube, wanda ya inganta ingancin karfen da aka yi masa.A lokaci guda, yana iya zama mafi mahimmancin sauyi na walda na baka.Babban kayan aiki a cikin tsarin waldawa sun haɗa da na'urar waldawa ta lantarki, kayan walda da abin rufe fuska.

 Hanyar walda-TianqiaoHoto 2. Ka'idar walda

Ka'ida

Bakin walda yana aiki da tushen wutar lantarki.A karkashin aikin wani irin ƙarfin lantarki, wani abu mai ƙarfi kuma mai ɗorewa yana faruwa tsakanin lantarki (da ƙarshen walda ko sandar walda) da kayan aiki.Ma'anar walda arc shine gas conduction, wato, tsaka tsakin iskar da ke sararin da ke sararin da baka ya lalace ya zama ions masu inganci masu inganci da kuma na'urorin lantarki masu muni a ƙarƙashin aikin wani irin ƙarfin lantarki, wanda ake kira ionization.Waɗannan barbashi biyun da aka caje ana kai su zuwa sandunan biyu.Motsin kai tsaye yana sa iskar gas ɗin gida ke sarrafa wutar lantarki don samar da baka.Arc na lantarki yana canza makamashin lantarki zuwa zafi, wanda ke zafi da narkar da karfe don samar da haɗin gwiwa.

Bayan an shigar da baka zuwa "kyauta", tsarin fitarwa da kansa zai iya samar da ɓangarorin da aka caje da ake buƙata don ci gaba da fitar da fitarwa, wanda shine yanayin fitar da kai.Kuma tsarin fitarwa na baka yana da ƙananan ƙarfin lantarki, babban halin yanzu, babban zafin jiki da haske mai ƙarfi.Tare da wannan tsari, ana canza makamashin lantarki zuwa zafi, inji da makamashin haske.Welding yafi amfani da zafin zafi da makamashin injin don cimma manufar haɗa karafa.

A lokacin walda, baka yana konewa tsakanin sandar walda da kayan aikin walda, yana narkewa da kayan aikin da jigon wutar lantarki don samar da narkakken tafkin.A lokaci guda kuma, murfin lantarki kuma yana narkewa, kuma wani nau'in sinadari yana faruwa don samar da slag da iskar gas, wanda ke ba da kariya ga ƙarshen electrode, ɗigon ruwa, narkakken tafkin da ƙarfe mai zafi mai zafi.

 

Babban rarrabawa

Hanyoyin walda na yau da kullun sun haɗa da Garkuwar Karfe Arc Welding (SMAW), Submerged Arc Welding (SAW), Gas Tungsten Arc Weld (GTAW ko TIG waldi), Plasma Arc Welding (PAW) da Gas Metal Arc Welding (GMAW, MIG ko Mag waldi). ) da sauransu.

 E7018-Tianqiao

Hoto 3. E7018 walda lantarki

Garkuwar Karfe Arc Welding (SMAW)

Shield karfe baka waldi yana amfani da lantarki da workpiece a matsayin biyu electrodes, da zafi da hurawa da karfi na baka ana amfani da gida narke workpiece a lokacin waldi.A lokaci guda, a ƙarƙashin aikin zafi na baka, ƙarshen wutar lantarki yana narke don samar da droplet, kuma aikin aikin yana narkar da wani yanki don samar da rami mai tsayi mai cike da ƙarfe mai ruwa.Ƙarfin ruwa da aka narkar da shi da ɗigon kayan aikin sun zama tafki narkakkar.A lokacin aikin walda, sutura da waɗanda ba ƙarfe ba sune abubuwan da aka haɗa su narke juna kuma suna samar da wani abu mara ƙarfe wanda ba ya rufe saman walda ta hanyar canjin sinadarai da ake kira slag.Yayin da baka ke motsawa, tafkin narkakkar yana yin sanyi kuma yana da ƙarfi don samar da walƙiya.Muna da lantarki walda daban-daban don SMAW, mafi mashahuri samfuran suneE6010, E6011, E6013, E7016, E7018, kuma donbakin karfe, jefa baƙin ƙarfe, wuya surfacingda dai sauransu.

 Ruwa-Arc-Welding-SAW-TianqiaoHoto 4. Submerged arc waldi

Waldawar Arc (SAW)

Waldawar baka mai nutsewa hanya ce wacce baka ke konewa a karkashin madaurin walda.Ƙarfe na lantarki da ake amfani da shi wajen waldawar baka mai nitsewa, waya ce mara amfani wacce ake shigar da ita kai tsaye ba tare da katsewa ba.Gabaɗaya, ana amfani da trolley ɗin walda ko wasu na'urorin inji da na lantarki don gane motsin baka na atomatik yayin aikin walda.Arc na waldawar baka mai nutsewa tana ƙonewa a ƙarƙashin ƙwanƙolin granular.Zafin baka yana narkewa kuma yana fitar da sassan da baka na kayan aikin ke aiki kai tsaye, da ƙarshen wayan walda da juyi, da tururin ƙarfe da juyi suna ƙafe don samar da rufaffiyar rami kewaye da baka.Kone a cikin wannan rami.Kogon yana kewaye da wani fim ɗin slag wanda aka haɗa da slag ɗin da aka samar ta hanyar narkewar ruwa.Wannan fim ɗin ba wai kawai ya keɓe iska daga haɗuwa da baka da narkakken tafkin ba, amma kuma yana hana baka daga haskakawa.Wayar walda mai tsanani da narkar da baka ta faɗo a cikin nau'i na ɗigon ruwa kuma tana haɗuwa da narkakkar kayan aikin ƙarfe don samar da narkakken tafkin.Ƙarƙashin ƙanƙara mai yawa yana yawo a kan narkakken tafkin.Baya ga keɓewar injina da kariyar ƙarfe na narkakkar tafki, narkakkar slag kuma yana jurewa wani nau'i na ƙarfe tare da narkakkar tafki yayin aikin walda, ta haka yana shafar sinadarai na ƙarfen walda.Arc ɗin yana tafiya gaba, kuma ƙarfen tafkin da aka narkar da shi a hankali ya huce ya yi crystallizes don samar da walƙiya.Bayan narkakkar da ke shawagi a ɓangaren sama na narkakkar tafki ya yi sanyi, ana yin ɓawon burodi don ci gaba da kare weld ɗin a yanayin zafi da kuma hana shi yin iskar oxygen.Muna ba da gudummawa ga SAW,SJ101,SJ301,SJ302

TIG-TianqiaoHoto 5. Gas Tungsten Arc Weld-TIG

Gas Tungsten Arc Weld/Tungsten Inert Gas Welding (GTAW ko TIG)

welding TIG yana nufin hanyar walda ta baka da ke amfani da tungsten ko tungsten gami (thorium tungsten, cerium tungsten, da sauransu) azaman lantarki da argon a matsayin iskar kariya, wanda ake kira TIG walda ko walda GTAW.Lokacin waldawa, ana iya ƙara ƙarfe ko ba'a ƙarawa bisa ga nau'in tsagi na walda da aikin ƙarfen walda.Ana ƙara ƙarfe mai filler yawanci daga gaban baka.Saboda musamman aluminum-magnesium da gami kayan, AC tungsten baka waldi ake bukata don waldi, da kuma DC tungsten baka waldi da ake amfani da sauran karfe kayan.Domin sarrafa shigar da zafi, pulsed argon tungsten arc waldi ana ƙara amfani da shi sosai.Wayoyin walda na TIG da aka fi amfani dasu suneSaukewa: AWS ER70S-6, Saukewa: ER80S-G,Saukewa: ER4043,Saukewa: ER5356,HS221da sauransu.

Plasma Arc Welding-Tianqiao Hoto 5. Plasma Arc Welding

Plasma Arc Welding (PAW)

Plasma arc wani nau'i ne na baka na musamman.Har ila yau, arc tungsten ne ko tungsten gami (thorium tungsten, cerium tungsten, da dai sauransu) azaman na'urar lantarki, ta amfani da argon azaman iskar gas mai karewa, amma tungsten electrode ba ya fita daga cikin bututun ƙarfe, amma ya ja da baya Ciki bututun ƙarfe, bututun ƙarfe. mai sanyaya ruwa ne, wanda kuma aka sani da bututun mai sanyaya ruwa.Gas din da ba ya aiki ya kasu kashi biyu, kashi daya shi ne iskar da ke fitarwa tsakanin injin tungsten da bututun sanyaya ruwa, wanda ake kira ion gas;Wani bangare kuma shine iskar gas da ke fita tsakanin bututun mai sanyaya ruwa da katon iskar gas mai kariya, wanda ake kira Gas Gas, ta yin amfani da baka na plasma a matsayin tushen zafi don walda, yanke, fesa, surfacing, da sauransu.

 Ma'aikacin waldaHoto 5 Karfe-Inert Gas Welding

Karfe Inert Gas Welding (MIG)

MIG waldi yana nufin cewa walda waya ta maye gurbin tungsten lantarki.Wayar walda da kanta tana ɗaya daga cikin sandunan baka, tana yin aikin sarrafa wutar lantarki da harbi, kuma a lokaci guda da kayan cikawa, wanda ake ci gaba da narke a cikin walda a ƙarƙashin aikin baka.Gas mai kariyar da aka saba amfani da shi a kusa da baka na iya zama iskar inert Ar, iskar gas CO2, ko kuma AR+CO2gauraye gas.MIG waldi wanda ke amfani da Ar azaman iskar gas ana kiransa MIG waldi;MIG waldi mai amfani da CO2kamar yadda garkuwar gas ake kira CO2waldi.Mafi mashahuri MIG suneSaukewa: AWS ER70S-6, Saukewa: ER80S-G.

lantarki, waldi, walda, walda lantarki, walda lantarki, walda sanda, walda sanduna, waldi farashin lantarki, lantarki waldi, waldi sanda sanda walda farashin, walda sanda, sanda waldi, walda sanduna, china walda sanduna, sandar lantarki, walda consumables, waldi cinyewa, China lantarki, walda lantarki China, carbon karfe waldi lantarki, carbon karfe waldi lantarki, carbon karfe waldi lantarki, waldi lantarki factory, kasar Sin factory waldi lantarki, China waldi lantarki, China waldi sanda, waldi sanda farashin, waldi kayayyaki, wholesale waldi kayayyaki, duniya waldi kayayyaki , Arc walda kayayyaki, waldi kayan wadata, baka waldi, karfe waldi, sauki baka waldi lantarki, baka waldi lantarki, baka waldi lantarki, a tsaye waldi lantarki, farashin waldi lantarki, cheap waldi lantarki, acid waldi lantarki, alkaline waldi lantarki, cellulos waldi lantarki, china walda lantarki, masana'anta lantarki, kananan size waldi lantarki, waldi kayan, waldi abu, waldi sanda abu, waldi electrode mariƙin, nickel waldi sanda, j38.12 e6013, waldi sanduna e7018-1, waldi sanda lantarki, waldi sanda 6010, waldi lantarki e6010, waldi sanda e7018, waldi lantarki e6011 walda lantarki, 6011 walda igiyoyi, 6011 walda igiyoyi, 6013 walda sanda, 6013 walda igiyoyi, 6013 walda lantarki, 6013 walda lantarki,7024 waldi sanda,7016 waldi sanda,7018 waldi sanda,7018 waldi sanda,7018 , walda lantarki e7016,e6010 waldi sanda,e6011 waldi sanda,e6013 waldi sanda,e7018 waldi sanda,e6013 waldi lantarki,e6013 waldi lantarki,e7018 waldi electrode,e7018 waldi electrodes,e7018 waldi electrodes,J42 Jumla e6010, Jumla e6011, wholesale e6013, wholesale e7018, mafi kyau waldi lantarki, mafi kyau waldi lantarki J421, bakin karfe waldi lantarki, bakin karfe walda sanda, bakin karfe lantarki, SS walda lantarki, walda igiyoyi e307, waldi electrode 3912 electrode e307 ,e316l 16 waldi lantarki, jefa baƙin ƙarfe walda lantarki, aws Eni-Ci,aws Enife-Ci, surfacing waldi, wuya fuskantar waldi sanda, wuya surfacing waldi, hardfacing waldi, waldi, waldi, vautid waldi, Bohler waldi, cokali waldi, waldi, Atlantic waldi, waldi, flux foda, walda juwa, waldi foda, waldi lantarki juyi abu, waldi lantarki juwa, walda lantarki abu, tungsten lantarki, tungsten lantarki, walda waya, argon baka waldi, mig waldi, tig waldi, gas arc waldi, gas karfe baka waldi, lantarki ne waldi, lantarki baka waldi, baka waldi sanduna, carbon baka waldi, e6013 waldi sanda amfani, iri waldi lantarki, juyi core waldi, iri na lantarki a waldi, walda wadata, waldi karfe, karfe waldi, Garkuwa karfe baka waldi, aluminum waldi, waldi aluminum tare da mig, aluminum mig waldi, bututu waldi, waldi iri, iri waldi sanda, kowane irin waldi, waldi sanda iri, 6013 waldi sanda amperage, waldi sanduna lantarki, waldi lantarki bayani dalla-dalla , waldi electrode rarrabuwa , waldi lantarki aluminum , waldi lantarki diamita , m karfe waldi , bakin karfe waldi , e6011 waldi sanda amfani , waldi sanduna masu girma dabam , walda sanduna farashin , walda lantarki size ,aws e6013 ,aws e7018 ,aws , 60s er70s bakin karfe waldi waya, bakin karfe mig waldi waya, tig waldi waya, low temp waldi sanda, 6011 waldi sanda amperage, 4043 waldi sanda, jefa baƙin ƙarfe waldi sanda, yammacin waldi Academy, sanrico waldi sanduna, aluminum waldi, aluminum waldi, aluminum rodi waldi kayayyakin walda, waldi tech, waldi factory


Lokacin aikawa: Agusta-17-2021

Aiko mana da sakon ku: