Thepa ea Welding ea li-alloys tse fapaneng tsa koporo

Welding thepa ea mefuta e fapanengmetsoako ea koporo:

1. Thermal conductivity ea koporo e khubelu e phahame.Thermal conductivity ea koporo e khubelu mocheso oa kamore e ka bang makhetlo a 8 ho feta a carbon steel.Ho thata ho futhumatsa weldment ea koporo sebakeng sa heno ho mocheso o qhibilihang.Ka hona, mohloli oa mocheso o nang le matla a mangata o lokela ho sebelisoa nakong ea ho tjheseletsa.Hangata mapetsong a hlaha ha li-alloys tsa koporo le tsa koporo li cheselitsoe.Mapetso a fumaneha ka har'a li-welds, melapo ea fusion le libaka tse anngoeng ke mocheso.Mapetsong ke tšenyo ea li-intergranular, 'me 'mala o hlakileng oa oxidation o ka bonoa ho tloha karolong ea sefapano.Nakong ea ts'ebetso ea kristale ea ho cheselletsa, latela oksijene le koporo ea mofuta oa Cu2O, 'me u thehe eutectic e fokolang e tlaase (α + Cu2O) e nang le α koporo, 'me ntlha ea eona e qhibilihisang ke 1064 ° C.

2. Loto ha e qhibilihe ka koporo e tiileng, 'me loto le koporo li theha eutectic e qhibilihang ka tlase e nang le ntlha e qhibilihang e ka bang 326°C.Tlas'a ketso ea tjheseletsa khatello ea kelello ka hare, koporo le koporo alloy manonyeletso ka mocheso phahameng theha mapetsong a pshatlehang dikarolo tsa manonyeletso welded.Ho feta moo, hydrogen ka har'a weld e ka boela ea baka mapetsong.Porosity hangata e hlaha ka li-welds tsa li-alloys tsa koporo le tsa koporo.Porosity ka tšepe e hloekileng ea weld ea koporo e bakoa haholo ke khase ea hydrogen.Ha khase ea CO e qhibiliha ka koporo e hloekileng, li-pores li ka boela tsa bakoa ke mouoane oa metsi le khase ea CO2 e hlahisoang ke karabelo ea carbon monoxide le oksijene.

3. The porosity sebopeho tšekamelo ea koporo alloy welding ke e kholoanyane ho feta ea koporo e hloekileng.Ka kakaretso, li-pores li ajoa bohareng ba weld le haufi le mohala oa fusion.Ha li-alloys tse hloekileng tsa koporo le tsa koporo li cheselitsoe, thepa ea mochine ea motsoako e atisa ho fokotseha.Ts'ebetsong ea li-alloys tsa koporo, oxidation ea koporo, le mouoane le ho chesoa ha likarolo tsa alloy li tla etsahala.Boemo bo tlase ba ho qhibiliha ha eutectic le liphoso tse fapaneng tsa welding li lebisa phokotsong ea matla, polasetiki, ho hanyetsa kutu le conductivity ea motlakase ea lenonyeletso le cheselitsoeng.