Welding yethusi
Izindlela zokushisela ithusi (okuvame ukubizwa ngokuthi i-industrial pure copper) zifaka i-gas welding, i-carbon arc welding manual, i-arc welding manual kanye ne-argon arc welding, kanye nezakhiwo ezinkulu nazo zingafakwa ngokuzenzakalelayo.
1.I-welding yegesi yethusi esetshenziswa kakhulu i-welding ye-butt, futhi i-overlap joint kanye ne-T joint kufanele isetshenziswe njembalwa ngangokunokwenzeka. Izinhlobo ezimbili zezintambo zokushisela zingasetshenziselwa ukushisela igesi. Enye intambo yokushisela equkethe izakhi ze-deoxygenation, njengezintambo ezingu-201 no-202; enye intambo yethusi evamile kanye nomugqa wokusika wesisekelo, futhi i-gas agent 301 isetshenziswa njenge-flux. Ilangabi elingathathi hlangothi kufanele lisetshenziswe lapho igesi ishisela ithusi.
I-2.I-copper wire rod yethusi i-107 isetshenziselwa ukushisela i-arc manual, kanti i-welding core iyithusi (T2, T3). Imiphetho ye-welding kufanele ihlanzwe ngaphambi kwe-welding. Lapho ubukhulu be-weldment bungaphezu kuka-4 mm, ukushisa kwangaphambi kwesikhathi kufanele kushiswe ngaphambili ngaphambi kokushisela, futhi izinga lokushisa langaphambi kokushisa ngokuvamile liba ngu-400 ~ 500 ℃. Uma welding nge-copper 107 welding rod, ukunikezwa kwamandla kufanele kubuyiselwe emuva yi-DC.
3.Ama-arcs amafushane kufanele asetshenziswe ngesikhathi sokushisela, futhi induku yokushisela akufanele ijike ivundlile. Induku yokushisela yenza ukunyakaza okuqondile kubuyele emuva, okungathuthukisa ukwakheka kwe-weld. I-weld ende kufanele ifakwe kancane kancane. Ijubane lokushisela kufanele libe ngokushesha ngangokunokwenzeka. Ngesikhathi se-welding ye-multi-layer, i-slag phakathi kwezingqimba kufanele isuswe ngokuphelele. Ukushisela kufanele kwenziwe endaweni enomoya omuhle ukuvikela ubuthi bethusi. Ngemva kokushisela, sebenzisa isando esinekhanda eliyisicaba ukuze uthinte i-weld ukuze uqede ukucindezeleka futhi uthuthukise ikhwalithi yokushisela.
4.Manual argon arc welding yethusi. Uma i-argon arc welding ye-manual ye-copper, izintambo ezisetshenziswayo ziyi-wire 201 (i-copper welding wire ekhethekile) kanye nocingo 202, futhi zisebenzisa i-copper wire, njenge-T2.
Ngaphambi kokushisela, ifilimu ye-oxide, uwoyela nokunye ukungcola emaphethelweni e-welding we-workpiece kanye nobuso bocingo kufanele kuhlanzwe ukuze kugwenywe amaphutha njengama-pores kanye ne-slag inclusions. Izindlela zokuhlanza zihlanganisa ukuhlanza ngemishini kanye nokuhlanza amakhemikhali. Lapho ubukhulu bepuleti elihlangene le-butt lingaphansi kuka-3 mm, i-bevel ayivulwa; lapho ubukhulu bepuleti bungu-3 kuya ku-10 mm, i-bevel emise okwe-V ivuliwe, futhi i-engeli ye-bevel ingu-60 kuya ku-70; lapho ubukhulu bepuleti bungaphezu kuka-10 mm, i-bevel emise okwe-X ivuliwe, I-angle ye-bevel ingu-60 ~ 70; ukuze ugweme ukuthungathwa, imiphetho ebuthuntu ngokuvamile iyashiywa. Ngokuhambisana nobukhulu bepuleti nosayizi we-bevel, igebe lokuhlanganisa le-butt joint likhethwa phakathi kwebanga lika-0.5 kuya ku-1.5 mm.
I-manual yethusi i-argon arc welding ngokuvamile isebenzisa uxhumano oluhle lwe-DC, okungukuthi, i-electrode ye-tungsten ixhunywe ku-electrode engalungile. Ukuze kuqedwe izimbobo zomoya futhi kuqinisekiswe ukuhlangana okuthembekile nokungena kwezimpande ze-weld, kuyadingeka ukwandisa isivinini sokushisela, ukunciphisa ukusetshenziswa kwe-argon, nokushisa i-weldment. Lapho ukujiya kwepuleti kungaphansi kuka-3 mm, izinga lokushisa lokushisa liyi-150 ~ 300 ℃; lapho ubukhulu bepuleti bukhulu kuno-3 mm, izinga lokushisa langaphambi kokushisa lingu-350 ~ 500 ℃. Ukushisa kwangaphambi kokushisa akufanele kube phezulu kakhulu, ngaphandle kwalokho izakhiwo zemishini yamajoyini ahlanganisiwe zizoncishiswa.
Kukhona futhi i-copper carbon arc welding, kanti ama-electrode asetshenziselwa ukushisela i-carbon arc ahlanganisa ama-electrode e-carbon essence nama-graphite electrode. Intambo yokushisela esetshenziselwa ukushisela i-copper carbon arc iyafana naleyo uma kushiselwa igesi. Izinto eziyisisekelo zingasetshenziswa futhi ukusika imicu, futhi ukugeleza kwethusi okufana ne-gas agent 301 kungasetshenziswa.
Ukushisela ngethusi
I-1.Izindlela zokuthungatha zethusi zihlanganisa: i-gas welding, i-carbon arc welding, i-arc welding manual kanye ne-argon arc welding. 1. Ukushiselwa kwegesi yethusi Ngenxa yokuthi izinga lokushisa lelangabi lokushisela igesi liphansi, ukuhwamuka kwe-zinc ethusi ngesikhathi sokushisela kuncane kunokusebenzisa i-welding kagesi, ngakho-ke ukushisela igesi kuyindlela evame ukusetshenziswa kakhulu ekushiseni ngethusi (ngiyabonga ngokunaka i-Dingding Automatic Welding).
Izintambo zokushisela ezisetshenziselwa ukushisela igesi yethusi zihlanganisa: wire 221, wire 222 kanye nocingo 224. Lezi zintambo zokushisela ziqukethe izakhi ezifana ne-silicon, ithini, insimbi, njll., engavimbela futhi inciphise ukuhwamuka nokushiswa kwe-zinc echibini elincibilikisiwe, futhi ihambisana nokuqinisekisa ukushisela. Ukusebenza nokuvimbela izimbobo zomoya. Ama-fluxes avame ukusetshenziswa ku-gas welding brass afaka impushana eqinile kanye ne-gas flux. I-gas flux iqukethe i-boric acid methyl fat kanye ne-methanol; ama-fluxes afana ne-gas agent 301.
2.I-arc ye-manual ye-arc welding yethusi Ngaphezu kwe-copper 227 ne-copper 237, izinduku zokushisela ezenziwe ekhaya zingasetshenziselwa ukushisela ithusi.
Uma i-arc welding yethusi, indlela yokuxhuma i-DC power supply positive kufanele isetshenziswe futhi induku yokushisela kufanele ixhunywe ku-electrode engalungile. Ubuso be-weldment kufanele buhlanzwe ngokucophelela ngaphambi kokushisela. I-engeli ye-bevel ngokuvamile akufanele ibe ngaphansi kuka-60~70o. Ukuze uthuthukise ukwakheka kwe-weld, izingxenye ezishiselwe kufanele zishiswe kuqala ku-150 ~ 250 ℃. I-arc welding emfushane kufanele isetshenziswe ngesikhathi sokusebenza, ngaphandle kokujika okuvundlile noma phambili nangemuva, ukunyakaza okuqondile kuphela, futhi isivinini sokushisela kufanele sibe phezulu. Izingxenye ezishiselwe ngethusi ezihlangana nezinto ezibolayo ezifana namanzi olwandle kanye ne-ammonia kufanele ziboshwe ngemva kokushisela ukuze kuqedwe ingcindezi yokushisela.
3.Manual argon arc welding yethusi. I-argon arc welding ye-manual ye-arc yethusi ingasebenzisa izintambo zethusi ezijwayelekile: i-wire 221, i-wire 222 ne-wire 224, futhi izinto ezinezakhi ezifanayo njengezinto eziyisisekelo nazo zingasetshenziswa njengezinto zokugcwalisa.
Ukushisela kungenziwa nge-direct current noma i-AC. Uma usebenzisa i-AC welding, ukuhwamuka kwe-zinc kukhanya kakhulu kunalapho kuxhumeke khona umshini oqondile. Ngokuvamile, ukushisa kwangaphambi kokushisa akudingekile ngaphambi kwe-welding, futhi ukushisa kuqala kuphela lapho ubukhulu bepuleti bukhulu kakhulu. Ijubane lokushisela kufanele libe ngokushesha ngangokunokwenzeka. Ngemuva kokushisela, izingxenye ezishiselwe kufanele zishiswe ku-300 ~ 400 ℃ ukuze kukhishwe ukucindezelwa kokushisela ukuvimbela ukuqhekeka ezingxenyeni ezishiselwe ngesikhathi sokusetshenziswa.
4.I-Brass carbon arc welding Lapho i-brass carbon arc welding, i-wire 221, i-wire 222, i-wire 224 nezinye izintambo zokushisela zikhethwa ngokuvumelana nokwakheka kwezinto eziyisisekelo. Ungasebenzisa futhi izintambo zokushisela zethusi zokuzenzela ukushisela. I-ejenti yegesi engu-301 noma okunye okunjalo ingasetshenziswa njenge-flux ekushiseleni. I-welding kufanele isetshenziswe i-arc emfushane ukunciphisa ukuhwamuka kwe-zinc kanye nokulimala kokusha.
Isikhathi sokuthumela: Mar-10-2025