Ho tjheseletsa koporo
Mekhoa ea ho tjheseletsa koporo (eo ka kakaretso e bitsoang koporo e hloekileng ea indasteri) e kenyelletsa welding ea khase, welding ea carbon arc, manual arc welding le manual argon arc welding, le mehaho e meholo e ka boela ea etsoa ka mochine.
1.Mokhoa o sebelisoang ka ho fetisisa oa koporo oa ho cheselletsa welding ke motsoako oa butt, 'me motsoako oa ho kopanya le T o lokela ho sebelisoa ka mokhoa o fokolang kamoo ho ka khonehang. Mefuta e 'meli ea lithapo tsa ho tjheseletsa li ka sebelisoa bakeng sa ho cheselletsa khase. E 'ngoe ke terata ea ho cheselletsa e nang le likarolo tsa deoxygenation, tse kang lithapo tsa 201 le 202; e 'ngoe ke terata e akaretsang ea koporo le lesela le sehang la thepa ea motheo, le moemeli oa khase 301 o sebelisoa e le phallo. Lelakabe le sa nke lehlakore le lokela ho sebelisoa ha khase e cheselletsa koporo.
2.Tsela ea koporo ea koporo ea koporo ea koporo ea koporo ea koporo ea koporo ea koporo ea koporo ea koporo ea koporo ea koporo ea koporo ea koporo ea koporo e sebelisoa bakeng sa ho kenya letsoho ka letsoho, 'me motheo oa welding ke koporo (T2, T3). Mathoko a tjheseletsa a lokela ho hlwekiswa pele ho tjheseletsa. Ha botenya ba tjheseletsa bo le boholo ho feta 4 mm, ho futhumatsa ho tlameha ho futhumatswa pele ho tjheseletsa, mme mocheso wa preheating hangata o pota 400 ~ 500 ℃. Ha ho tjheseletsa ka koporo 107 molamu oa welding, phepelo ea motlakase e lokela ho khutlisoa ke DC.
3. Li-arcs tse khutšoanyane li lokela ho sebelisoa nakong ea welding, 'me molamu oa welding ha oa lokela ho sisinyeha ho ea holimo. The tjheseletsa molamu etsa linear tshisinyo reciprocating, e leng ka ntlafatsa sebopeho sa weld. The weld nako e telele lokela ho butle-butle welded. Lebelo la welding e lokela ho ba kapele kamoo ho ka khonehang. Nakong ea li-welding tse ngata, slag pakeng tsa lihlopha e tlameha ho tlosoa ka ho feletseng. Welding e lokela ho etsoa sebakeng se nang le moea o motle ho thibela chefo ea koporo. Ka mor'a ho cheselletsa, sebelisa hamore ea hlooho e bataletseng ho tlanya weld ho felisa khatello ea kelello le ho ntlafatsa boleng ba weld.
4.Manual argon arc welding ea koporo. Ha ho sebelisoa tšepe ea argon arc ea koporo, likhoele tse sebelisoang ke terata ea 201 (terata e khethehileng ea koporo) le terata ea 202, hape e sebelisa terata ea koporo, joalo ka T2.
Pele ho tjheseletsa, filimi ea oxide, oli le litšila tse ling holim'a litšepe tsa welding ea workpiece le holim'a terata li tlameha ho hloekisoa ho qoba liphoso tse kang li-pores le slag inclusions. Mekhoa ea ho hloekisa e kenyelletsa ho hloekisa ka mechine le ho hloekisa lik'hemik'hale. Ha botenya ba poleiti e kopantsoeng ea butt e ka tlase ho 3 mm, bevel ha e butsoe; ha botenya ba poleiti bo le 3 ho isa ho 10 mm, bevel e nang le V e buloa, 'me angle ea bevel ke 60 ho isa ho 70; ha botenya ba poleiti bo feta 10 mm, bevel e nang le sebopeho sa X e buloa, Lekhalo la bevel ke 60 ~ 70; ho qoba maqeba a sa koaeloang, ka kakaretso a tloheloa. Ho ea ka botenya ba poleiti le boholo ba bevel, lekhalo la kopano ea lenonyeletso la butt le khethoa ka har'a sebaka sa 0.5 ho isa ho 1.5 mm.
Manual koporo argon arc welding hangata e sebelisa DC positive connection, ke hore, tungsten electrode e hokahane le electrode negative. E le ho felisa masoba a moea le ho netefatsa fusion e ka tšeptjoang le ho kenella ha metso ea weld, ho hlokahala ho eketsa lebelo la ho tjheseletsa, ho fokotsa tšebeliso ea argon, le ho chesa pele ho cheseletsa. Ha botenya ba poleiti bo ka tlase ho 3 mm, mocheso oa preheating ke 150 ~ 300 ℃; ha botenya ba poleiti bo feta 3 mm, mocheso oa preheating ke 350 ~ 500 ℃. Mocheso oa preheating ha oa lokela ho ba o phahameng haholo, ho seng joalo thepa ea mechine ea li-welded joints e tla fokotseha.
Ho boetse ho na le copper carbon arc welding, 'me li-electrode tse sebelisetsoang ho cheselletsa carbon arc li kenyelletsa li-electrode tsa carbon essence le li-electrode tsa graphite. Mohala oa ho tjheseletsa o sebedisoang bakeng sa tjheseletsa ya koporo ya carbon arc o tshwana le ha o tjheseletsa kgase. Thepa ea motheo e ka boela ea sebelisoa ho seha likhoele, 'me ho ka sebelisoa liphaephe tsa koporo joalo ka mokelikeli oa khase 301.
Ho tjheseletsa ka koporo
1.Mekhoa ea ho tjheseletsa ka koporo e kenyelletsa: ho cheselletsa khase, carbon arc welding, manual arc welding le argon arc welding. 1. Ho chesoa ha khase ea koporo Kaha mocheso oa lelakabe la ho cheselletsa khase o le tlase, mouoane oa zinki ka koporo nakong ea welding o tlase ho feta ha o sebelisa welding ea motlakase, kahoo ho tjheseletsa ha khase ke mokhoa o sebelisoang haholo ho cheselletsa ka koporo (kea leboha ka ho ela hloko Dingding Automatic Welding).
Lithapo tsa tjheseletsa tse sebelisetsoang ho cheselletsa khase ea koporo li kenyelletsa: terata ea 221, terata ea 222 le terata ea 224. Lithapo tsena tsa ho tjheseletsa li na le lintho tse kang silicon, tin, tšepe, joalo-joalo, tse ka thibelang le ho fokotsa ho tsoa mouoane le ho chesoa ha zinki ka letamong le entsoeng ka ho qhibilihisoa, 'me li thusa ho etsa bonnete ba hore ho cheseha. Ts'ebetso le ho thibela masoba a moea. Li-fluxes tse sebelisoang hangata ka koporo ea welding ea khase li kenyelletsa phofo e tiileng le phallo ea khase. Phallo ea khase e na le boric acid methyl mafura le methanol; li-fluxes li joalo ka moemeli oa khase 301.
2.Manual arc welding ea koporo Ho phaella ho koporo ea 227 le koporo ea 237, lithupa tse entsoeng ka mahahapa li ka boela tsa sebelisoa bakeng sa koporo ea welding.
Ha ho etsoa welding ea koporo ea arc, ho lokela ho sebelisoa mokhoa oa khokahanyo o nepahetseng oa phepelo ea motlakase oa DC mme molamu oa welding o lokela ho hokahanngoa le electrode e mpe. Bokaholimo ba weldment bo lokela ho hloekisoa ka hloko pele ho tjheseletsa. Ka kakaretso angle ea bevel ha ea lokela ho ba ka tlase ho 60 ~ 70o. E le ho ntlafatsa sebopeho sa weld, likarolo tse cheselitsoeng li lokela ho futhumatsoa pele ho 150 ~ 250 ℃. Li-welding tse khutšoane tsa arc li lokela ho sebelisoa nakong ea ts'ebetso, ntle le ho tsokotseha kapa ho ea pele le ka morao, ho sisinyeha feela ka mola, mme lebelo la welding le lokela ho ba holimo. Likarolo tse cheselitsoeng ka koporo tse kopanang le mecha ea litaba e senyang joalo ka metsi a leoatle le ammonia li tlameha ho ts'oaroa ka mor'a ho cheselletsa ho felisa khatello ea maikutlo.
3.Manual argon arc welding ea koporo. Manual argon arc welding ea koporo e ka sebelisa lithapo tse tloaelehileng tsa koporo: terata 221, terata 222 le terata 224, le lisebelisoa tse nang le likarolo tse tšoanang le tsa motheo le tsona li ka sebelisoa e le lisebelisoa tsa ho tlatsa.
Welding e ka etsoa ka ho toba hona joale kapa AC. Ha o sebelisa welding ea AC, mouoane oa zinki o bobebe ho feta ha motlakase o tobileng o hokahane. Hangata, ho futhumatsa ha ho hlokahale pele ho tjheseletsa, mme ho futhumatsa ke feela ha botenya ba poleiti bo batla bo le boholo. Lebelo la welding e lokela ho ba kapele kamoo ho ka khonehang. Ka mor'a ho tjheseletsa, likarolo tse cheselitsoeng li lokela ho futhumatsoa ka 300 ~ 400 ℃ bakeng sa ho tsuba ho felisa khatello ea kelello ho thibela mapetsong a likarolo tse cheselitsoeng nakong ea tšebeliso.
4.Brass carbon arc welding Ha ho etsoa tšepe ea koporo ea carbon arc, terata 221, terata 222, terata ea 224 le lisebelisoa tse ling tsa welding li khethoa ho latela sebopeho sa thepa ea motheo. U ka boela ua sebelisa lithapo tse entsoeng lapeng tsa koporo ho tjheseletsa. Setsi sa khase 301 kapa tse ling tse joalo se ka sebelisoa e le phallo ea ho cheselletsa. The tjheseletsa e lokela ho sebetswa short arc ho fokotsa moea oa zinki le ho chesa tšenyo.
Nako ea poso: Mar-10-2025