1.Kwenziwa kanjaniweld steel emnene?
Insimbi enekhabhoni ephansi inokuqukethwe kwekhabhoni ephansi kanye nepulasitiki enhle, futhi ingalungiswa ibe izinhlobo ezahlukahlukene zamalunga nezingxenye.Enqubweni yokushisela, akulula ukukhiqiza isakhiwo esiqinile, futhi ukuthambekela kokukhiqiza imifantu nakho kuncane.Ngesikhathi esifanayo, akulula ukukhiqiza ama-pores.Kuyinto engcono kakhulu yokushisela impahla.
Ukushisela insimbi yekhabhoni ephansi ngokushisela igesi, ukushisela i-arc manual, ukushisela okuzenzakalelayo kwe-arc, ukushisela okuvikelwe ngegesi nezinye izindlela kungathola amajoyinti ashiselwe kahle.Ungashisi isikhathi eside uma usebenzisa i-welding yegesi, ngaphandle kwalokho okusanhlamvu endaweni ethinteke ukushisa kuzoba kukhulu kalula.Uma isihlanganisi siqinile kakhulu futhi izinga lokushisa le-ambient liphansi, i-workpiece kufanele ifudumale ibe ngu-100 ~ 150 ° C ukugwema ukuqhekeka.
2.Indlela yokushisela i-medium carbon steel?
Ngenxa yokuqukethwe kwekhabhoni ephezulu ye-medium carbon steel, i-weld seam kanye nendawo yayo ethintekile ekushiseni ijwayele izakhiwo eziqinile futhi ibangele ukuqhekeka, ngakho-ke kufanele ifudumale ibe ngu-300 ° C ngaphambi kokushisela, futhi ukupholisa kancane kuyadingeka ngemva kokushisela.Ingashiselwa nge-welding yegesi, i-arc ye-manual kanye ne-gas shielded welding.Izinto zokushisela kufanele zisebenzise i-AWS E7016, i-AWS E7015 namanye ama-electrode anokumelana kangcono nokuqhekeka.
3.Indlela yokushisela i-aluminium ne-aluminium alloy?
I-aluminium ne-aluminium alloys ijwayele ukukhiqiza amafilimu e-oxide anemininingwane emikhulu kanye namaphuzu aphezulu okuncibilika ngesikhathi sokushisela.Le filimu ye-oxide ingakwazi futhi ukumunca amanzi amaningi, ngakho-ke amaphutha afana nokufakwa kwe-slag, ukuhlanganiswa okungalungile, nama-pores avame ukwenzeka ngesikhathi sokushisela.Ngaphezu kwalokho, ama-alloys e-aluminium Futhi athambekele ekuqhekekeni okushisayo.Ukushisela i-aluminium ne-aluminium alloys kungenziwa ngokushisela igesi noma ukushisela i-arc manual.Kodwa-ke, ukushisa kwe-welding yegesi akugxili, futhi ukudluliswa kokushisa kwe-aluminium kuyashesha, ngakho-ke ukusebenza kahle kokukhiqiza kuphansi, futhi ukuguqulwa kwe-workpiece kukhulu, ngakho-ke akuvamile ukusetshenziswa ngaphandle kwamapuleti amancane.Njengamanje, inani elikhulu lezindlela zokushisela ze-AC argon arc zisetshenziselwa ukushisela i-aluminium ne-aluminium alloys, ngoba inokushisa okugxilile, ama-weld seams amahle, ukuguqulwa okuncane, ukuvikelwa kwe-argon, futhi kungavimbela ukufakwa kwe-slag nama-pores.Uma i-arc welding isetshenziselwa ukushisela i-aluminium, ifanele amapuleti awugqinsi angaphezu kuka-4mm.
Amamaki ezinduku zokushisela asetshenziswa i-aluminium 109, i-aluminium 209 ne-aluminium 309. Wonke ama-electrode asekelwe usawoti ane-arc engaqinile, edinga ukunikezwa kwamandla okubuyela emuva kwe-DC.
4.Indlela yokushisela i-titanium ne-titanium alloys?
I-Titanium iyisici esisebenza kakhulu.Esimeni esiwuketshezi nesiqinile ngaphezu kuka-600°C, kulula kakhulu ukusabela nge-oxygen, i-nitrogen, i-hydrogen namanye amagesi ukwenza ukungcola okuyingozi kanye ne-embrittle titanium.Ngakho-ke, i-oxygen-acetylene gas welding, i-arc welding manual noma enye i-gas shielded welding ayikwazi ukusetshenziselwa i-titanium ne-titanium alloys, kodwa i-argon arc welding kuphela, i-vacuum electron beam welding kanye ne-welding yokuxhumana ingasetshenziswa.
Amapuleti azacile angaphansi kuka-3mm ashiselwe i-argon arc welding, amandla kagesi axhumene ngqo nesimanjemanje, ukuhlanzeka kwegesi ye-argon akukho ngaphansi kuka-99.98%, umlomo wombhobho kufanele usondele ngangokunokwenzeka ku-workpiece, umshini wokushisela kufanele ube encane, futhi isivinini sokushisela kufanele sisheshe.Thuthukisa ukwakheka kwekristalu futhi uqede ukucindezeleka kokushisela.
5.Kwenziwa kanjaniweld ithusinama-alloys ethusi?
I-welding ye-alloys yethusi neyethusi inezingqinamba eziningi, ngoba ukuqhutshwa kwe-thermal conductivity kuhle kakhulu, ngakho-ke kulula ukubangela ukukhubazeka okufana nokungafinyeleli nokuhlanganisa okungalungile.Ngemuva kwe-welding, i-workpiece izoba ne-deformation enkulu, futhi indawo ye-weld ne-fusion nayo ijwayele ukuqhekeka kanye nenani elikhulu lama-pores.Izakhiwo zemishini yejoyinti, ikakhulukazi ipulasitiki kanye nokuqina kuphansi kunalezo zensimbi eyisisekelo.Ukushisela igesi kungasetshenziselwa ukushisela ithusi elibomvu, kodwa ukusebenza kahle kuphansi kakhulu, ukuwohloka kukhulu, futhi kudinga ukushiselwa ngaphambi kuka-400 ° C, futhi izimo zokusebenza azilungile.Ukushisela i-arc manual kungasebenzisa i-copper 107 noma i-copper 227 electrode, ukunikezwa kwamandla kubuyiselwa emuva nge-DC, i-arc igcinwa iphansi ngangokunokwenzeka, futhi indlela ye-striprocating strip method isetshenziselwa ukuthuthukisa ukuma kwe-weld.Hammer the weld ngemva kokushisela ukuthuthukisa izinga lokushisela.Uma i-argon tungsten arc welding isetshenziswa, amajoyinti ashiselwe asezingeni eliphakeme angatholakala futhi ukuguqulwa kwama-weldments kungancishiswa.I-Wire 201 isetshenziselwa izintambo zokushisela.Uma kusetshenziswa ucingo lwethusi olubomvu i-T2, i-flux 301 nayo kufanele isetshenziswe.Ukunikezwa kwamandla kusebenzisa uxhumano oluhle lwe-DC.I-workpiece kanye ne-welding wire kufanele ihlanzwe ngokucophelela ngesikhathi sokushisela ukuze kuncishiswe ama-pores kanye nokufakwa kwe-slag.Kufanele kusetshenziswe isivinini esiphezulu samanje nesiphezulu uma kushiselwa.
Ukushisela igesi kuvame ukusetshenziselwa ukushisela ithusi, futhi ucingo lokushisela kungaba ucingo 221, ucingo 222 noma ucingo 224, njll. Lezi zintambo ziqukethe i-silicon, ithini, insimbi nezinye izakhi, ezinganciphisa ukulahlekelwa okuvuthayo kwe-zinc echibini elincibilikisiwe. .Ngenxa yokushisa okuphansi kwe-welding yegesi, ukulahlekelwa okuvuthayo kwe-zinc ethusi kungancishiswa;ilangabi elincane le-oxidation lisetshenziselwa ukumboza ingaphezulu lechibi elincibilikisiwe ngongqimba lwefilimu ye-zinc oxide, enganciphisa ukuhwamuka kwe-zinc.Ngaphezu kwalokho, ithusi lingashiselwa nge-arc welding manual kanye ne-argon tungsten arc welding.
6.Yiziphi izici ezijwayelekile zokushisela i-alloy steel welding?
Insimbi evamile ene-alloy iyinsimbi evame ukusetshenziselwa ukukhiqiza kabusha.Isici esiyinhloko salolu hlobo lwe-welding yensimbi ukuthi indawo ethintekile ekuhlanganyeleni inomkhuba omkhulu wokuqina, futhi okuqukethwe kwe-hydrogen kuzobangela ukuqhekeka okubandayo ekuhlanganyeleni.Lokhu kuthambekela kokuqina kanye nokuqhekeka okubandayo kuyanda njengoba izinga lamandla lensimbi evamile ephansi ye-alloy likhula.
7.Ithini indlela yokushisela yensimbi eyi-16 manganese?
16 Insimbi ye-Manganese yokushisela kufanele isebenzise i-junction 506 noma i-junction 507 namanye ama-electrode ayisisekelo, uxhumano lwe-DC reverse.Uma ukuthambekela kokuqhekeka kwesakhiwo kungenkulu, izinduku zokushisela i-asidi njenge-junction 502 noma i-junction 503 nazo zingasetshenziswa, futhi inqubo yokushisela ifana neyensimbi ephansi ye-carbon;lapho i-weldment iqinile futhi izinga lokushisa elizungezile lingaphansi kuka -10 ° C, ukushisa ngaphambi kokushisela kuyadingeka.Imiphumela egculisayo ingatholakala ngokushisela i-arc manual, i-arc welding engaphansi kwamanzi noma i-electroslag welding.
8.Ithini indlela yokushisela ye-15 manganese vanadium kanye ne-15 manganese titanium steel?
Kokubili i-15 manganese vanadium kanye ne-15 manganese titanium ngezensimbi engu-40 kg evamile ephansi ye-alloy.Ngenxa yokwengezwa kwe-vanadium noma i-titanium ethile, izinga lamandla lensimbi liyathuthukiswa;kodwa ukushisela kwabo, izinto zokushisela kanye nezinqubo zokushisela kufana nalezo zensimbi ye-manganese engu-16.Isiqhathaniso siyefana.Uma kusetshenziswa i-arc automatic welding, intambo yokushisela ingaba ngu-08 manganese high, 08 manganese 2 silicon, kanye ne-flux 431, i-flux 350 noma i-flux 250 ingafinyelela imiphumela egculisayo.
9.Ithini indlela yokushisela yensimbi engu-18 manganese molybdenum niobium?
Insimbi engu-18 ye-manganese-molybdenum-niobium ingeyensimbi engu-50 kg enamandla amakhulu avamile e-low alloy, evame ukusetshenziswa ekwenzeni imikhiqizo ebalulekile yokushisela njengemikhumbi enomfutho ophezulu kanye nezigubhu ezibhayela.Ngenxa yamandla ayo aphezulu kanye nokuthambekela okukhulu kokuqina, izinyathelo zokushisa zendawo kufanele zithathwe ngesikhathi sokushisela indawo.Naka ukomisa i-electrode nokuhlanza i-groove ukuvimbela ukuqhekeka okubandayo okubangelwa i-hydrogen.I-arc welding ye-manual isebenzisa i-junction 607 namanye ama-electrode;Ukushisela okuzenzakalelayo kwe-arc kusetshenziswa intambo yokushisela ene-manganese ephezulu engu-08 ne-molybdenum, futhi ingashiselwa nge-flux 250 noma i-flux 350.
Isikhathi sokuthumela: Jun-12-2023