Melao-motheo ea mantlha ea khetho ea lisebelisoa tsa welding

Nahana ka thepa ea 'mele, thepa ea mochine le lik'hemik'hale tsa thepa ea weld

1. Mehaho ea tšepe ea tšepe, ka kakaretso e nahane ka molao-motheo oa matla a lekanang, khetha ho finyella litlhoko tsa thepa ea mochine oa thepa e kopanetsoeng ea welding.

2. Bakeng sa tšepe e tlaase ea carbon le tšepe e tlaase ea alloy pakeng tsa motsoako oa ho tjheseletsa oa tšepe e sa tšoaneng, ka kakaretso khetha lisebelisoa tse tsamaisanang tsa welding tse nang le matla a tlaase a tšepe.

3. Bakeng sa tšepe e sa keneleng mocheso le tšepe e sa hloekang, ho phaella ho nahaneng ka matla, empa hape u nahane ka lik'hemik'hale tse ka sehloohong tsa tšepe ea weld le lik'hemik'hale tsa thepa ea motsoali haufi.

4. Ha metsoako ea lik'hemik'hale tsa lintho tse bonahalang motsoali, tse kang k'habone kapa sebabole, phosphorus le litšila tse ling tse kotsi li phahame, li lokela ho khetha lisebelisoa tse matla le ho feta tsa crack resistance.Joalo ka lisebelisoa tse tlase tsa mofuta oa hydrogen.

Nahana ka maemo a ts'ebetso ea welding le ts'ebeliso ea ts'ebetso

1. Likarolo tse nang le welded tabeng ea mojaro o matla le mojaro oa tšusumetso, ho phaella ho litlhoko tsa ho netefatsa matla a tsitsitseng, matla a lihlahisoa, matla a tšusumetso, polasetiki ke litlhoko tse phahameng.Ka nako ena e lokela ho khethoa ka thepa e tlaase ea hydrogen welding.

2. Likarolo tse cheselitsoeng mecheng ea litaba tse senyang, li tlameha ho khetholloa ho mofuta oa mecha ea litaba, mahloriso, mocheso oa ho sebetsa le mofuta oa ho senyeha (ho bola ka kakaretso, ho senyeha ha intergranular, ho senyeha ha khatello ea kelello, joalo-joalo), e le hore u khethe lisebelisoa tse loketseng tsa tšepe tse sa hloekang.

3. Ha weld e sebetsa tlas'a maemo a ho roala, hoa hlokahala ho khetholla pakeng tsa ho apara ka kakaretso kapa ho apara ka mokhoa o ts'oanelang, ho roala ha li-intermetallic kapa ho roala, ho roala mocheso oa kamore kapa ho apara mocheso o phahameng, joalo-joalo. , e le hore u khethe lisebelisoa tse loketseng tsa ho tjheseletsa ka holim'a overlay.

4. Ka mocheso tlaase kapa mocheso o phahameng tjheseletsa likarolo, lokela ho khetha ho etsa bonnete ba hore mocheso tlaase kapa mocheso o phahameng thepa mechine ea thepa tjheseletsa.

Nahana ka ho rarahana le litšobotsi tsa sebopeho sa likarolo tse cheselitsoeng, mofuta o kopantsoeng oa welded, joalo-joalo.

1. Sebopeho se rarahaneng kapa botenya bo boholo ba likarolo tse cheselitsoeng, ka lebaka la tšepe ea eona ea ho tjheseletsa ka ho qhibiliha ha pholileng ea khatello ea kelello e ka hare e hlahisoang ke e kholo, e bonolo ho hlahisa mapetsong.Ka hona, hoa hlokahala ho sebelisa lisebelisoa tsa welding tse nang le khanyetso e ntle ea crack, joalo ka molamu oa welding oa mofuta o tlase oa hydrogen, molamu oa welding o thata.

2. Bakeng sa manonyeletso a itseng a nang le li-bevel tse nyenyane, kapa manonyeletso a nang le taolo e tiileng ea ho kenella ha metso, lisebelisoa tsa welding tse nang le botebo bo boholo ba ho kopanya kapa ho kenella li lokela ho sebelisoa.

3. Ka lebaka la lithibelo tsa likarolo tse ling tjheseletsa ho le thata ho hloekisa, lokela ho nahana ka tšebeliso ea mafome, oxidation le karabelo oli ha e nahanele thepa tjheseletsa, tse kang acid tjheseletsa molamu, e le hore a se ke a hlahisa liphoso tse kang porosity.

Nahana ka boemo ba sebaka sa weld

Lisebelisoa tse ling tsa ho tjheseletsa li loketse feela bakeng sa ho cheselletsa sebakeng se itseng, maemo a mang ha a sebetse hantle ha ho tjheseletsa, lisebelisoa tse ling tsa welding li khona ho tjheseletsa maemong a sa tšoaneng, litšobotsi tsa boemo ba tjheseletsa li lokela ho nkoa ha u khetha.

Nahana ka maemo a ts'ebetso ea welding, tikoloho ea ts'ebetso

1. Ha ho na liketsahalo tsa mochini oa tjheseletsa oa DC, o lokelang ho sebelisa lisebelisoa tsa welding tse peli tsa AC le DC.

2. Litšepe tse ling (tse kang tšepe ea pearlite mocheso o sa keneleng mocheso) li hloka ho phekoloa ka mor'a-weld khatello ea kelello mocheso, empa ka maemo a thepa kapa litšitiso tsa eona tsa sebopeho 'me li ke ke tsa etsoa, ​​​​li lokela ho khethoa ka motheo oa lik'hemik'hale tsa tšepe. lisebelisuoa tse fapaneng tsa ho cheselletsa (joalo ka lisebelisoa tsa welding tsa tšepe ea austenitic), li ka lokoloha kalafong ea mocheso oa morao-rao.

3. E lokela ho ipapisa le maemo a sebaka sa kaho, joalo ka ts'ebetso ea ts'imo, tikoloho ea ts'ebetso ea welding, joalo-joalo ho khetho e bohlale ea lisebelisoa tsa welding.

4. Libakeng tseo ho tsona ho ka sebelisoang li-electrode tse nang le asiti le tsa alkaline, li-electrode tse nang le asiti li lokela ho sebelisoa ka hohle kamoo ho ka khonehang ho latela litlhoko tse phahameng tsa li-electrode tsa alkaline welding bakeng sa mekhoa ea ts'ebetso le ho lokisa kaho.

Nahana ka moruo oa ho cheselletsa

1. Leka ho sebelisa lisebelisoa tsa welding tse theko e tlaase, ha feela ts'ebetso ea ts'ebeliso e tiisitsoe.

2. Lisebelisoa tse fapaneng tsa li-welding li ka sebelisoa bakeng sa li-welds tse ka sehloohong le tsa bobeli tse nang le litlhoko tse fapaneng tsa ts'ebetso, 'me u se ke ua phehella ts'ebetso e feletseng ea lisebelisoa tsa welding unilaterally.

Nahana ka ho sebetsa hantle ha tjheseletsa

Bakeng sa meaho e nang le mosebetsi o mongata oa ho tjheseletsa, lisebelisoa tsa welding tse sebetsang hantle haholo li lokela ho sebelisoa ka hohle kamoo ho ka khonehang ha li fumaneha, joalo ka terata ea welding, tšepe ea phofo ea tšepe, molamu o sebetsang hantle oa tšepe, joalo-joalo.

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