Akukho mahluko kwinkqubo phakathi kwe-argon arc welding epheleleyo kunye ne-argon arc welding.I-argon arc welding epheleleyo ifanelekile kwimibhobho encinci yobubanzi obuncinci (ngokubanzi i-DN60 nangaphantsi, ubukhulu bodonga 4mm), injongo kukuqinisekisa umgangatho wengcambu ye-weld kunye nenkangeleko.
Xa ububanzi bombhobho bukhulu kwaye ubukhulu bodonga bukhulu, i-argon arc welding kufuneka isetyenziswe njengesiseko kunye ne-welding manual ukugubungela umphezulu.Injongo ye-welding manual kukuqinisekisa umgangatho wembonakalo yobukhulu bombhobho omkhulu kunye ne-welding manual, kwaye ukusebenza kakuhle komsebenzi kuphezulu kune-argon arc welding.ngaphantsi kune-argon arc welding.
Inkqubo ye-welding ephantsi ye-argon ye-arc isetyenziswe kwi-welding yeendonga zamanzi ebhoyila, ii-superheaters, i-economizers, njl njl. Umgangatho wamalungu ubalaseleyo, kwaye amabakala e-weld angaphezulu kwe-Class II emva kokuhlolwa kwe-radiographic.
Izinto ezilungileyo ze-argon arc welding
(1) umgangatho omhle
Ngethuba nje ucingo olufanelekileyo lwe-welding, iiparamitha zenkqubo ye-welding kunye nokukhuselwa kwegesi okulungileyo kukhethiweyo, ingcambu inokufumana ukungena okulungileyo, kunye nokungena kufana, kwaye umphezulu ulungile kwaye ucocekile.Akukho ziphene ezifana ne-weld bumps, ukungena okungaphelelanga, ukudandatheka, i-pores kunye ne-slag inclusions ekulula ukwenzeka ngexesha le-arc welding kunye ne-electrodes jikelele.
(2) Ukusebenza okuphezulu
Kumaleko wokuqala we-welding yombhobho, i-argon arc welding ye-manual yi-arc welding eqhubekayo.I-arc welding ye-electrode i-arc welding eyaphukileyo, ngoko ke i-argon arc welding manual inokunyusa ukusebenza kakuhle ngama-2 ukuya kwa-4 amaxesha.Ekubeni i-argon arc welding ayivelisi i-welding slag, akukho mfuneko yokucoca i-slag kunye nokulungisa i-weld bead, kwaye isantya siya kunyuka ngokukhawuleza.Kumaleko wesibini we-arc welding cover surface, umaleko ogudileyo kunye nococekileyo we-argon welding esezantsi iluncedo kakhulu kumphezulu we-arc welding, enokuqinisekisa ukudityaniswa okuhle phakathi kweeleya, ngakumbi kwi-welding yemibhobho encinci edayamitha, ukusebenza kakuhle kungaphezulu. ebalulekileyo.
(3) Kulula ukuyiqonda
Ukuwelda kwengcambu ye-welding ye-arc manual kufuneka kwenziwe ngabachwephesha abanamava kunye nabanobuchule obuphezulu.I-argon arc welding ye-manual isetyenziselwa ukuxhasa, kwaye abasebenzi abasebenza ngokubanzi kumsebenzi we-welding banokuwulawula emva kwexesha elifutshane lokuziqhelanisa.
(4) Ukuguqulwa okuncinci
Ummandla ochaphazelekayo ubushushu uncinci kakhulu ngexesha le-argon arc welding, ngoko ke ukuguqulwa kokudibanisa okudibeneyo kuncinci kwaye uxinzelelo olushiyekileyo luncinci.
Intshayelelo yenkqubo
(1) Umzekelo wokuwelda
I-economizer, i-evaporator tube bundle, udonga lwamanzi kunye ne-high-temperature superheater yenziwe nge-No.
(2) Ukulungiswa ngaphambi kokuba i-welding
Ngaphambi kwe-welding, umlomo wombhobho kufuneka ufakwe kwi-30°, kunye nombala wensimbi kufuneka uphuculwe ngaphakathi kwe-15mm ngaphakathi nangaphandle kokuphela kombhobho.Umsantsa phakathi koogxa bombhobho yi-1 ~ 3mm.Xa i-gap yangempela inkulu kakhulu, kuyimfuneko ukugqithisa umaleko wenguqu kwicala le-groove yombhobho kuqala.Misa izibonelelo zethutyana zokhuselo lomoya kwaye ulawule ngokungqongqo isantya somoya kwindawo yokusebenza yokuwelda, kuba isantya somoya sigqithisa kuluhlu oluthile, kwaye imingxuma yomoya yenziwa lula.
(3) Ukusebenza
Sebenzisa umatshini we-welding we-tungsten argon arc welding, umatshini we-welding ngokwawo uxhotyiswe ngesixhobo sokutshisa i-arc i-high-frequency, kunye ne-high-frequency arc ignition ingasetyenziswa.Ukucima i-arc kwahlukile kwi-electrode arc welding.Ukuba i-arc icime ngokukhawuleza, ukuqhekeka kwe-arc crater kulula ukwenzeka.Ngoko ke, ngexesha lokusebenza, i-pool etyhidiweyo kufuneka iholele emphethweni okanye kwisiseko sesinyithi esityebileyo, kwaye ngokuthe ngcembe ucuthe ichibi elityhidiweyo ukucima ngokukhawuleza i-arc, kwaye ekugqibeleni uvale i-arc.Igesi ekhuselayo.
Kwimibhobho yensimbi ye-20 kunye nobukhulu bodonga lwe-3 ~ 4mm, izinto zokuzalisa zingaba yi-TIGJ50 (ye-12Cr1MoV, i-08CrMoV ingasetyenziswa), ububanzi bentonga ye-tungsten yi-2mm, i-welding current yi-75 ~ 100A, i-arc. I-voltage yi-12 ~ 14V, kunye nesantya sokuhamba kwegesi ekhuselayo yi-8 ~ 10L / min, uhlobo lombane ludibaniso oluhle lwe-DC.
Isizathu sokuba i-argon arc welding ingasetyenziswa ngokubanzi ngenxa yezi nzuzo zilandelayo.
1. Ukukhuselwa kwe-Argon kunokwahlula imiphumo emibi ye-oksijeni, i-nitrogen, i-hydrogen, njl. emoyeni kwi-arc kunye ne-pool etyhidiweyo, ukunciphisa ilahleko evuthayo yezinto ze-alloy, kunye nokufumana i-dense, i-spatter-free, i-high-quality welded joints;
2. Ukutshiswa kwe-arc ye-argon arc welding izinzile, ubushushu bugxininiswe, ubushushu bekholamu ye-arc buphezulu, ukusebenza kakuhle kwemveliso ye-welding kuphezulu, indawo echaphazeleke bubushushu incinci, kwaye uxinzelelo, ukuguqulwa kunye nokuthambekela kokuqhekeka kwe-welded. amalungu amancinci;
3. I-Argon arc welding yi-arc welding evulekileyo, ekulungele ukusebenza kunye nokuqwalaselwa;
4. Ilahleko ye-electrode incinci, ubude be-arc kulula ukuyigcina, kwaye akukho nto i-flux okanye i-coating layer ngexesha le-welding, ngoko kulula ukuyiqonda i-mechanization kunye ne-automation;
5. I-Argon arc welding inokuwelda phantse zonke iintsimbi, ngakumbi ezinye iintsimbi eziphikisayo kunye nesinyithi esine-oxidized ngokulula, njenge-magnesium, i-titanium, i-molybdenum, i-zirconium, i-aluminiyam, njl. kunye ne-alloys yazo;
6. Ayikhawulelwanga yindawo ye-weldment, kwaye inokudityaniswa kuzo zonke izikhundla.
Iintsilelo eziphambili:
1. Ngenxa yommandla omkhulu ochaphazelekayo ukushisa kwe-argon arc welding, i-workpiece ivame ukubangela i-deformation, ubunzima obuphezulu, i-blisters, i-annealing yendawo, i-crack, i-pinholes, i-wear, i-scratches, i-undercuts, okanye ukungonelanga kwamandla okubambisana kunye noxinzelelo lwangaphakathi emva kokulungiswa.iziphene ezifana nomonakalo.Ngokukodwa kwinkqubo yokulungisa iziphene ezincinci zokuchithwa kotyalo-mali, zivelele phezu komhlaba.Kwintsimi yokulungisa iziphene zokuphosa ngokuchanekileyo, oomatshini ababandayo be-welding bangasetyenziselwa endaweni ye-argon arc welding.Ngenxa yokukhutshwa kobushushu obuncinci koomatshini be-welding ebandayo, iintsilelo ze-argon arc welding zingcono zoyiswa, kwaye iingxaki zokulungiswa kwee-castings ezichanekileyo zenzelwe.
2. I-Argon arc welding iyingozi ngakumbi kumzimba womntu kune-electrode arc welding.Uxinzelelo lwangoku lwe-argon arc welding luphezulu, kwaye ukukhanya okukhutshiweyo kunamandla.Imitha ye-ultraviolet eyenziwa yi-arc yayo imalunga ne-electrode arc welding eqhelekileyo.Amaxesha ama-5 ukuya kuma-30, kunye nemitha ye-infrared malunga ne-1 ukuya kwi-1.5 amaxesha e-electrode arc welding.Umxholo we-ozone owenziwe ngexesha le-welding uphezulu kakhulu.Ngoko ke, zama ukukhetha indawo kunye nokujikeleza komoya okulungileyo ukwenzela ukwakhiwa, ngaphandle koko kuya kubangela umonakalo omkhulu kumzimba.
3. Kwizinyithi ezineqondo eliphantsi lokunyibilika kunye nokunyuka lula (njengelothe, i-tin, i-zinc), i-welding inzima kakhulu.
Ixesha lokuposa: Aug-16-2023