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Welding of metals with accompanying preheating

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MAQOLA ANNOTATSIYASI

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This article considers a technological method of influencing the thermomechanical state (with reduced plasticity) of the crystallizing metal of a welded joint when welding metals with accompanying preheating. It is noted that the effect of accompanying preheating is manifested when the preheating tool is optimally positioned relative to the welding arc. Methane, propane-butane gas can be used for plates thicker than 10 mm, and the electric arc without melting the base metal up to 10 mm thick. The preheating tool has a speed adequate to the welding speed.

MUALIFLAR

Science ID: FTN-0225-0088

Teglar

# general# crystallization# preliminary# gas burner# local preheating# accompanying# welding transformer# welding generator# crystallization cracks# tungsten electrode# thermodeformation effect

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Maqola idintifikatorlari

Foydalanilgan adabiyotlar

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Dyatlov V.I., Sidoruk V.S. Influence of technological conditions on the formation of hot longitudinal cracks. Automatic welding No. 3, 1961

Gura R.M. “Study of welded joints of pipes made by heating from austenitic steels EP-17, EP-18I and EI 695RG.” Collection “Metal in modern power plants”, Moscow, Publishing House “Energia”, 1965

Prokhorov I.I., Prokhorov Nik I., Magerramov A.G. “Study of the influence of heating on the processes of development of internal stresses and deformation during welding.” “Physics and chemistry of materials processing” No. 6, 1972

Dietrich E. Preheating temperatures when welding high-strength structural steels. "Schweiss Technic" No. 3, 1968

Herold Hornt. Checking preheating temperatures during welding using time-temperature-transformation diagrams. "Schweiss Technic" No. 1, 1972

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Kasimov A.M., Balandin S.L. The influence of accompanying heating on crack formation in a weld during welding. TADI Bulletin, 2015

Kasimov A. M. Experience in welding fixed joints of pipes made of steel 15X1M1F with heating. Automatic welding, 1975

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