Awukho umehluko ohlelweni phakathi kwe-argon arc welding egcwele kanye ne-argon arc welding.I-argon arc welding egcwele ifanele amapayipi amancane anezindonga ezincane (ngokuvamile i-DN60 nangaphansi, ukushuba kodonga 4mm), inhloso ukuqinisekisa ikhwalithi yempande yokushisela nokubukeka.
Uma ububanzi bepayipi bukhulu futhi ubukhulu bodonga bukhulu, i-argon arc welding kufanele isetshenziswe njengesisekelo kanye ne-manual welding ukumboza indawo.Inhloso ye-welding manual ukuqinisekisa ikhwalithi yokubukeka yobubanzi bepayipi elikhulu kanye ne-welding manual, futhi ukusebenza kahle komsebenzi kuphakeme kunokwe-argon arc welding.iphansi kune-argon arc welding.
Inqubo yokushisela i-argon arc bottom welding isetshenziswa ekushiseleni izindonga zamanzi okubhayela, ama-superheaters, i-economizers, njll. Izinga lamalunga lihle kakhulu, futhi amamaki e-weld angaphezulu kwe-Class II ngemva kokuhlolwa kwe-radiographic.
Izinzuzo ze-argon arc welding
(1) izinga elihle
Uma nje ucingo lwe-welding olufanele, imingcele yenqubo yokushisela nokuvikelwa kwegesi okuhle kukhethwa, impande ingathola ukungena okuhle, futhi ukungena kufana, futhi ubuso bushelelezi futhi buhlelekile.Awekho amaphutha afana nama-weld bumps, ukungena okungaphelele, ukucindezeleka, ama-pores kanye nokufakwa kwe-slag okulula ukwenzeka ngesikhathi se-arc welding nge-electrode evamile.
(2) Ukusebenza kahle okuphezulu
Kusendlalelo sokuqala sokushisela ipayipi, i-argon arc welding iwukushisela okuqhubekayo kwe-arc.I-electrode arc welding iphukile i-arc welding, ngakho-ke i-argon arc welding ingakhuphula ukusebenza kahle izikhathi ezi-2 kuya kwezi-4.Njengoba i-argon arc welding ingakhiqizi i-welding slag, asikho isidingo sokuhlanza i-slag nokulungisa ubuhlalu be-weld, futhi isivinini sizokhula ngokushesha.Ongqimbeni lwesibili lwekhava ye-arc welding, ungqimba oluphansi lwe-argon welding welding olubushelelezi futhi oluhlelekile luzuzisa kakhulu endaweni yekhava ye-arc welding, engaqinisekisa ukuhlangana okuhle phakathi kwezingqimba, ikakhulukazi ekushiseleni kwamapayipi amancane ububanzi, ukusebenza kahle kungaphezulu. okubalulekile.
(3) Kulula ukuyiqonda
Ukushisela kwe-root weld ye-arc welding manual kumele kwenziwe ngabashiseli abanolwazi nabanekhono eliphezulu.I-argon arc welding ye-manual isetshenziselwa ukusekela, futhi izisebenzi ezivame ukwenza umsebenzi wokushisela zingaba nekhono ngemva kwesikhathi esifushane sokuzijwayeza.
(4) Ukuguquguquka okuncane
Indawo ethintekile ekushiseni incane kakhulu ngesikhathi sokushisela i-argon arc, ngakho-ke ukuguqulwa kokuhlanganiswa okuhlanganisiwe kuncane futhi ukucindezeleka okusele nakho kuncane.
Isingeniso senqubo
(1) Isibonelo sokushisela
I-economizer, i-evaporator tube bundle, udonga lwamanzi kanye ne-high-temperature superheater yenziwe ngensimbi engu-No.
(2) Ukulungiselela ngaphambi kokushisela
Ngaphambi kwe-welding, umlomo wepayipi kufanele uboshwe ngo-30°, futhi umbala wensimbi kufanele upholishwe ngaphakathi kuka-15mm ngaphakathi nangaphandle kokuphela kwepayipi.Igebe phakathi kozakwabo bamapayipi ngu-1 ~ 3mm.Uma igebe langempela likhulu kakhulu, kuyadingeka ukuthi uvele ungqimba loguquko ohlangothini lwe-groove yepayipi kuqala.Misa izindawo zokukhosela umoya wesikhashana futhi ulawule ngokuqinile isivinini somoya endaweni yokusebenza yokushisela, ngoba isivinini somoya sidlula ububanzi obuthile, futhi izimbobo zomoya zikhiqizwa kalula.
(3) Ukusebenza
Sebenzisa umshini wokushisela we-tungsten argon arc welding, umshini wokushisela ngokwawo ufakwe i-high-frequency arc ignition device, futhi i-high-frequency arc ignition ingasetshenziswa.Ukucima i-arc kuhlukile kune-electrode arc welding.Uma i-arc icishwa ngokushesha, imifantu ye-arc crater kulula ukwenzeka.Ngakho-ke, ngesikhathi sokusebenza, ichibi elincibilikisiwe kufanele liholele emaphethelweni noma ensimbi eyisisekelo eqinile, bese kancane kancane inciphe ichibi elincibilikisiwe ukuze ucime kancane kancane i-arc, futhi ekugcineni uvale i-arc.Igesi yokuzivikela.
Kumapayipi ensimbi angu-20 anobukhulu bodonga obungu-3 ~ 4mm, izinto zokugcwalisa zingaba yi-TIGJ50 (ye-12Cr1MoV, i-08CrMoV ingasetshenziswa), ububanzi benduku ye-tungsten yi-2mm, i-welding current yi-75 ~ 100A, i-arc I-voltage ingu-12 ~ 14V, futhi izinga lokugeleza kwegesi evikelayo ngu-8~10L/min, uhlobo lokunikezwa kwamandla ukuxhuma kwe-DC positive.
Isizathu sokuthi kungani i-argon arc welding ingasetshenziswa kabanzi kungenxa yalezi zinzuzo ezilandelayo.
1. Ukuvikelwa kwe-Argon kungahlukanisa imiphumela emibi yomoya-mpilo, i-nitrogen, i-hydrogen, njll. emoyeni ku-arc kanye nechibi elincibilikisiwe, kunciphise ukulahlekelwa okuvuthayo kwezakhi ze-alloy, futhi kutholwe amalunga, angenawo ama-spatter, asezingeni eliphezulu ashiselwe;
2. Ukushiswa kwe-arc ye-argon arc welding kuzinzile, ukushisa kugxilile, izinga lokushisa lekholomu ye-arc liphezulu, ukusebenza kahle kokukhiqizwa kokushisela kuphezulu, indawo ethinteke ukushisa incane, kanye nengcindezi, ukuwohloka kanye nokuthambekela kokuqhekeka kwe-welded. izingxenye zincane;
3. I-Argon arc welding iyi-arc welding evulekile, elungele ukusebenza nokubhekwa;
4. Ukulahlekelwa kwe-electrode kuncane, ubude be-arc kulula ukuyigcina, futhi akukho ungqimba lwe-flux noma ukugqoka ngesikhathi sokushisela, ngakho-ke kulula ukuqaphela umshini kanye ne-automation;
5. I-Argon arc welding ingashisela cishe zonke izinsimbi, ikakhulukazi ezinye izinsimbi eziphikisayo nezinsimbi ezifakwe i-oxidized kalula, njenge-magnesium, i-titanium, i-molybdenum, i-zirconium, i-aluminium, njll kanye nama-alloys awo;
6. Ayinqunyelwe isikhundla se-weldment, futhi ingafakwa kuzo zonke izikhundla.
Ukungalungi kahle okukhulu:
1. Ngenxa yendawo enkulu ethintekile ekushiseni kwe-argon arc welding, i-workpiece ivame ukubangela ukuguquguquka, ubunzima obukhulu, ama-blister, ukukhishwa kwendawo, ukuqhekeka, ama-pinholes, ukugqoka, ukuklwebheka, ama-undercuts, noma amandla anganele okubopha kanye nokucindezeleka kwangaphakathi ngemva kokulungiswa.amaphutha afana nokulimala.Ikakhulukazi ohlelweni lokulungisa iziphambeko ezincane zokutshala izimali, kuvelele ebusweni.Emkhakheni wokulungisa iziphambeko ze-castings ngokunemba, imishini yokushisela ebandayo ingasetshenziswa esikhundleni se-argon arc welding.Ngenxa yokukhishwa kokushisa okuncane kwemishini yokushisela ebandayo, ukushiyeka kwe-argon arc welding kunqotshwa kangcono, futhi izinkinga zokulungisa zokuphonswa ngokunemba zenzelwe.
2. I-Argon arc welding iyingozi kakhulu emzimbeni womuntu kune-electrode arc welding.Ukuminyana kwamanje kwe-argon arc welding kuphezulu, futhi ukukhanya okukhishwayo kunamandla uma kuqhathaniswa.Imisebe ye-ultraviolet ekhiqizwa i-arc yayo imayelana ne-electrode arc welding evamile.Izikhathi ezi-5 kuye kwezingama-30, futhi imisebe ye-infrared cishe iphindwe ka-1 kuye ku-1.5 kuneye-electrode arc welding.Okuqukethwe kwe-ozone okukhiqizwa ngesikhathi sokushisela kuphezulu uma kuqhathaniswa.Ngakho-ke, zama ukukhetha indawo enomoya omuhle wokujikeleza ukuze kwakhiwe, ngaphandle kwalokho kuzodala umonakalo omkhulu emzimbeni.
3. Ezinsimbi ezinephuzu eliphansi lokuncibilika kanye nokuhwamuka kalula (njengomthofu, ithini, i-zinc), ukushisela kunzima kakhulu.
Isikhathi sokuthumela: Aug-16-2023