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 ea 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 e bitsoang Cu2O, 'me u thehe eutectic e tlaase e qhibilihisang (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.Sebaka se tlase sa ho qhibiliha ha eutectic le mefokolo e fapaneng ea welding li lebisa ho fokotseng matla, polasetiki, ho hanyetsa kutu le conductivity ea motlakase ea lenonyeletso le cheselitsoeng.