Umgaqo we-argon arc welding
I-Argon arc welding yindlela ye-welding esebenzisa i-inert gas argon njenge-gas ekhuselayo.
Iimpawu ze-argon arc welding
1. Umgangatho we-weld uphezulu. Ekubeni i-argon igesi ye-inert kwaye ayisebenzi ngamakhemikhali kunye nesinyithi, izinto ze-alloy aziyi kutshiswa, kwaye i-argon ayinyibiliki ngetsimbi. Inkqubo ye-welding ngokusisiseko kukunyibilika kunye nekristali yentsimbi. Ngoko ke, umphumo wokukhusela ungcono, kwaye i-weld ecocekileyo kunye nekhwalithi ephezulu inokufumaneka.
2. Uxinzelelo lwe-welding deformation luncinci. Ngenxa yokuba i-arc ixinzelelwe kwaye ipholile yi-argon gas flow, ukushisa kwe-arc kugxininiswe, kwaye ukushisa kwe-argon arc kuphezulu kakhulu, ngoko ke indawo echaphazelekayo yokushisa incinci, ngoko ke uxinzelelo kunye nokuguqulwa ngexesha le-welding lincinci. ngakumbi kwiifilimu ezibhityileyo. I-welding yamacandelo kunye ne-welding ephantsi yemibhobho.
3. Inoluhlu olubanzi lwe-welding kwaye luyakwazi ukuwelda phantse zonke izinto zetsimbi, ezilungele ngokukhethekileyo iintsimbi ze-welding kunye ne-alloys kunye namacandelo asebenzayo ekhemikhali.
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Ukuhlelwa kwe-argon arc welding
1. Ngokwezinto ezahlukeneyo ze-electrode, i-argon arc welding inokwahlulwa ibe yi-tungsten arc welding (non-melting electrode) kunye ne-melting electrode argon arc welding.
2. Ngokwendlela yokusebenza kwayo, inokwahlulwa ibe yi-manual, semi-automatic and automatic argon arc welding.
3. Ngokomthombo wamandla, inokwahlulwa ibe yi-DC argon arc welding, i-AC argon arc welding kunye ne-pulse argon arc welding.
Ukulungiselela phambi kwe-welding
1. Funda ikhadi lenkqubo ye-welding ukuze uqonde izinto ze-welding workpiece, izixhobo ezifunekayo, izixhobo kunye neeparitha zenkqubo ehambelanayo, kubandakanywa nokukhetha umatshini ochanekileyo we-welding (njenge-welding aluminium alloy, kufuneka usebenzise umatshini we-welding we-AC), kunye ukhetho oluchanekileyo lwe-tungsten electrode kunye nokuhamba kwegesi.
▶ Okokuqala, kufuneka sazi i-welding current kunye nezinye iiparameters zenkqubo kwikhadi lenkqubo yokuwelda. Emva koko khetha i-electrode ye-tungsten (ubukhulu becala, ububanzi be-2.4mm busetyenziswa ngokuqhelekileyo, kwaye uluhlu lwangoku lokuguquguquka luyi-150 ~ 250A, ngaphandle kwe-aluminium).
▶ Ubungakanani bombhobho kufuneka bukhethwe ngokusekelwe kububanzi be-electrode ye-tungsten. 2.5 ~ 3.5 amaxesha ububanzi be-electrode ye-tungsten yi-diameter yangaphakathi yomlomo.
▶Ekugqibeleni, khetha umlinganiselo wokuqukuqela kwerhasi ngokusekwe kwidayamitha engaphakathi yomlomo. Amaxesha angama-0.8-1.2 ubukhulu bangaphakathi bombhobho yisantya sokuhamba kwegesi. Ubude bokwandiswa kwe-electrode ye-tungsten akufunekanga budlule ububanzi bangaphakathi bombhobho, ngaphandle koko ii-pores ziya kwenzeka ngokulula.
2. Jonga ukuba ngaba umatshini wokuwelda, inkqubo yokubonelela ngegesi, inkqubo yokubonelela ngamanzi, kunye nesiseko esisezantsi silungile.
3. Jonga ukuba iworkpiece ifanelekile na:
▶ Nokuba kukho i-oyile, umhlwa kunye nolunye ukungcola (i-weld ngaphakathi kwe-20mm kufuneka icoceke kwaye yome).
▶ Nokuba i-engile ye-bevel, i-gap, kunye ne-edge ebuthuntu ifanelekile. Ukuba i-angle ye-groove kunye ne-gap inkulu, umthamo we-welding uya kuba mkhulu kwaye i-welding ingenzeka lula. Ukuba i-angle ye-groove incinci, i-gap incinci, kwaye umphetho onqabileyo unzima, kulula ukubangela ukudibanisa okungaphelelanga kunye ne-welding engaphelelanga. Ngokuqhelekileyo, i-engile ye-bevel yi-30 ° ~ 32 °, i-gap yi-0 ~ 4mm, kwaye i-edge e-blunt yi-0 ~ 1mm.
▶ Umphetho ongalunganga awunakuba mkhulu kakhulu, ngokubanzi ngaphakathi kwe-1mm.
▶Ukuba ubude kunye nenani leendawo zokuwelding ziyahlangabezana neemfuno, kwaye i-tack welding ngokwayo mayingabinaziphene.
Indlela yokusebenzisa i-argon arc welding
IArgon arc lumsebenzi apho izandla zombini zihamba ngaxeshanye. Kuyafana nokuba isandla sasekhohlo sizoba isangqa kwaye isandla sasekunene sizoba isikwere kubomi bethu bemihla ngemihla. Ngoko ke, kucetyiswa ukuba abo baqala ukufunda i-argon arc welding kufuneka baqhube uqeqesho olufanayo, oluya kuba luncedo ukufunda i-argon arc welding. .
1. Ukutya ngocingo: yahlulwe yaba lucingo lokuzalisa lwangaphakathi kunye nocingo lokuzalisa lwangaphandle.
▶Iingcingo zokugcwalisa zangaphandle zinokusetyenziselwa ukuzalisa phantsi kunye nokuzalisa. Isebenzisa umsinga omkhulu. Intloko yocingo lwe-welding ingaphambili kwi-groove. Bamba ucingo lwe welding ngesandla sakho sasekhohlo kwaye ngokuqhubekayo ulondle kwidama elinyibilikisiweyo lokuwelda. I-gap ye-groove ifuna i-gap encinci okanye ayikho.
Inzuzo yalo kukuba i-current inkulu kwaye i-gap incinci, ngoko ke ukusebenza kwemveliso kuphezulu kwaye izakhono zokusebenza zilula ukuzilawula. Ukungalungi kwayo kukuba, ukuba isetyenziselwa ukuqalisa, umqhubi akakwazi ukubona ukunyibilika komphetho onqabileyo kunye nokuphakama okungaphezulu kwicala elingasemva, ngoko ke kulula ukuvelisa ukubunjwa okungaxutywanga kunye nokungathandekiyo.
▶Ucingo lokuzalisa lunokusetyenziselwa ukuwelda emazantsi kuphela. Sebenzisa ubhontsi wasekhohlo, umnwe wesalathisi okanye umnwe ophakathi ukulungelelanisa intshukumo yocingo. Umnwe omncinci kunye nomnwe womsesane ubambe ucingo ukulawula indlela. Olu cingo lukufutshane nongqameko olubuthuntu ngaphakathi kwigroove, kunye necala elibuthuntu. Ukunyibilika kunye ne-welding, i-gap ye-groove iyadingeka ukuba ibe mkhulu kunobubanzi bocingo lwe-welding. Ukuba iplate, ucingo lwe-welding lunokugotywa kwi-arc.
I-advanteji kukuba i-welding wire ikwelinye icala le-groove, ngoko unokubona ngokucacileyo ukunyibilika komphetho obumnyama kunye nocingo lwe-welding, kwaye unokubona ukuqiniswa kwicala elingasemva kunye nombono wakho we-peripheral, i-weld ixutywe kakuhle, kwaye ukuqiniswa kunye nokungabikho kokudibanisa kwicala elingasemva kunokufumaneka. Ulawulo oluhle kakhulu. Ukungalungi kukuba umsebenzi unzima kwaye ufuna ukuba i-welder ibe nezakhono zokusebenza ezinobuchule. Ngenxa yokuba i-gap inkulu, umthamo we-welding uyanda ngokufanelekileyo. I-gap inkulu, ngoko ke i-current iphantsi, kwaye ukusebenza kakuhle komsebenzi kuhamba kancinci kunocingo lokuzalisa lwangaphandle.
2. Isibambo se-welding sahlulwe sibe sisiphatho sokungcangcazela kunye ne-mop.
▶Isiphatho sokushukuma kukucinezela umbhobho wokuwelda kancinane kancinane kumthungo wokuwelda, kwaye ushukumise ingalo kakhulu ukwenza ukuwelda. Inzuzo yalo kukuba i-nozzle ye-welding icinezelwe kwi-weld seam kwaye isiphatho se-welding sizinzile kakhulu ngexesha lokusebenza, ngoko ke i-weld seam ikhuselwe kakuhle, umgangatho ulungile, imbonakalo ihle kakhulu, kwaye izinga lokufaneleka kwemveliso liphezulu. Ngokukodwa, i-welding ephezulu ilula kakhulu kwaye inokusetyenziswa xa i-welding steel stainless steel. Fumana umbala omhle kakhulu obukekayo. Ububi kukuba kunzima ukufunda. Ngenxa yokuba ingalo iguquka kakhulu, akunakwenzeka ukuba udibanise kwimiqobo.
▶I-mop ithetha ukuba incam yewelding ingqiyama ngobunono okanye ingangqiyanga kumthungo wokuwelda. Umnwe omncinci okanye umnwe weringi wesandla sokunene nawo uyayama okanye ungawuchasi umsebenzi. Ingalo ijiwuzisa kancinane kwaye irhuqa isiphatho se welding ukwenzela ukuwelda. Iingenelo zayo kukuba kulula ukufunda kwaye ikwazi ukuziqhelanisa neemeko. Ukungalungi kwayo kukuba imilo kunye nomgangatho akulunganga njengesiphatho sojingi. Ngokukodwa i-welding engaphezulu ayinayo i-swing handle ukuququzelela i-welding. Kunzima ukufumana umbala ofanelekileyo kunye nokumila xa udiza intsimbi engatyiwayo.
3. Umlilo we-arc
I-arc starter (i-oscillator ephezulu-frequency okanye i-high-frequency pulse generator) isetyenziselwa ngokubanzi ukuqala i-arc. I-electrode ye-tungsten kunye ne-weldment ayidibanisi omnye nomnye ukutshisa i-arc. Ukuba akukho siqalisi se-arc, i-arc yokuqhagamshelana iyasetyenziswa (isetyenziswa kakhulu kufakelo lwesiza sokwakha, ngakumbi ukufakwa komgangatho ophezulu), ubhedu okanye igraphite inokubekwa kwi-groove ye-weldment ukuvutha i-arc, kodwa le ndlela inzima kakhulu. kwaye ayifane isetyenziswe. Ngokuqhelekileyo, i-welding wire isetyenziselwa ukudweba ngokukhawuleza ucingo lwe-welding ukuya ngqo kwi-weldment kunye ne-electrode ye-tungsten kwaye ikhuphe ngokukhawuleza ukuvutha i-arc.
4.Welding
Emva kokuba i-arc itshiswe, i-weldment kufuneka ifakwe ngaphambili kwi-3 ukuya kwimizuzwana emi-5 ekuqaleni kwe-weldment. Ukutya ngocingo kuqala emva kokuba idama elityhidiweyo lenziwe. Xa u-welding, i-angle ye-welding wire gun kufuneka ifaneleke kwaye ucingo lwe-welding kufuneka lutyiswe ngokulinganayo. Umpu welding kufuneka uye phambili kakuhle kwaye ujiwule ngasekhohlo nasekunene, kunye namacala amabini kancinane kancinci kwaye embindini ngokukhawuleza kancinane. Nika ingqalelo kakhulu utshintsho kwi-pool etyhidiweyo. Xa ichibi elityhidiweyo liba likhulu, i-weld iba banzi okanye i-concave, isantya se-welding kufuneka sikhawuleze okanye i-welding current ilungelelaniswe phantsi. Xa umdibaniso we-pool otyhidiweyo ungalunganga kwaye ukutya kocingo kuvakalelwa ukuba akushukumi, isantya se-welding kufuneka sincitshiswe okanye i-welding current inyuswe. Ukuba i-welding ephantsi, ingqwalasela kufuneka igxininiswe kumaphethelo amnyama kumacala omabini e-groove kunye neekona zamehlo. Ngombono wakho we-peripheral kwelinye icala lomthungo, nikela ingqalelo kwiinguqu kwezinye iindawo eziphakamileyo.
5. i-arc yokuvala
Ukuba i-arc ivaliwe ngokuthe ngqo, kulula ukuvelisa imingxuma yokuncipha. Ukuba umpu we-welding une-arc starter, i-arc kufuneka ivalwe ngokukhawuleza okanye ihlengahlengiswe kwi-current ye-arc efanelekileyo kwaye i-arc kufuneka ivalwe ngokukhawuleza. Ukuba umatshini we-welding awunayo i-arc starter, i-arc kufuneka ihanjiswe ngokukhawuleza kwi-groove. Musa ukuvelisa imingxuma yokuncipha kwicala elinye. Ukuba kukho imingxunya eshwabeneyo, kufuneka icocwe icoceke phambi kokuba iwelding.
Ukuba i-arc yokuvala idibene, i-joint kufuneka ifakwe kwi-bevel kuqala. Emva kokuba umdibaniso unyibilike ngokupheleleyo, weld phambili nge-10 ~ 20mm kwaye emva koko uvale i-arc ukunqanda ukushwabana kwemingxuma. Kwimveliso, kudla ngokubonakala ukuba amajoyina awaphuculwanga kwii-bevels, kodwa ixesha lokudibanisa lamalungu lide ngokuthe ngqo. Lo ngumkhwa ombi kakhulu. Ngale ndlela, amajoyina axhomekeke kwi-concave, adibeneyo angaxutywanga kunye neendawo ezidibeneyo zangasemva, ezichaphazela ukubonakala kokubumba. Umzekelo, ukuba i-alloy ephezulu Izinto eziphathekayo nazo zixhomekeke kwiintanda.
Emva kwe-welding, khangela ukuba imbonakalo iyanelisa. Cima amandla kunye negesi xa uhamba.
Ixesha lokuposa: Dec-19-2023
