辛建卿, 余伟. Analysis and Improved Process Practice on Surface Longitudinal Crack of Concasting Slab of Steel 09CuPTiRE[J]. Special Steel, 2007, 28(6): 59-60.
辛建卿, 余伟. Analysis and Improved Process Practice on Surface Longitudinal Crack of Concasting Slab of Steel 09CuPTiRE[J]. Special Steel, 2007, 28(6): 59-60.DOI:
The 180 mm ×1200 mm slab of atmospheric corrosion-resisting steel 09CuPTiRE(≤0. 12C
0.06~ 0. 12P
≤0.020S
0.25~0.50Cu
≤0.03Ti
0.01~0.04RE)is produced by 80 t converter-ladle argon stirring-vertical-bending slab caster process. With using improved process measures such as controlling Cu/Ti≤20
P content ≤ 0. 11%
RE content 0.01%~0.03%
using special mold powder for steel 09CuPTiRE
mold liquid level fluctuation ≤10 mm and decreasing secondary cooling water rate
the occured rate of longitudinal crack of steel 09CuPTiRE decreased from original 15% to 0.5%.