周立新, 丁磊, 苏春阳, et al. Carburized Bearing Steel G20CrNi2MoA for Railway Remelted by an Inert Gas Shielding Atmosphere 5 t Electroslag Remelting Furnace[J]. Special Steel, 2012, 33(5): 25-28.
周立新, 丁磊, 苏春阳, et al. Carburized Bearing Steel G20CrNi2MoA for Railway Remelted by an Inert Gas Shielding Atmosphere 5 t Electroslag Remelting Furnace[J]. Special Steel, 2012, 33(5): 25-28.DOI:
The metallurgy effect of carburized bearing steel G20CrNi2MoA for railway (/% : 0
19C
0. 49Cr
1.75Ni
0. 23Mo
0. 071 Al) by argon shielding atmosphere electroslag remelting ( ESR) in closed hood and by normal atmospheric ESR has been tested and analyzed. Results show that the loss of Si and Mn of argon shield atmosphere ESR ingot (3% 〜12% and 4% - 10% ) is less than the loss of Si and Mn of normal atmospheric ESR ingot (15% ~ 18% and 7% ~ 10% ) ; as the oxygen content in electrode of steel G20CrNi2MoA is 10 x 10
-6
the oxygen content in argon shield atmosphere ESR ingot (15 x 10
-6
) is lower than that in normal atmospheric ESR ingot (21.3 x 10
-6
) ; and the metallurgical quality of argon shield atmosphere ESR ingot is obviously better than that of normal non gas shielding ESR ingot.