苟复钢, 王青海, 王东明, 等. GCr15 轴承钢 250 mm x 280 mm 铸坯至 138 mm x 150 mm坯粗轧数值模拟及工艺优化[J]. 特殊钢, 2021,42(4):42-46.
苟复钢, 王青海, 王东明, et al. Numerical Simulation and Process Improvement on Rough Rolling of 250 mm x 280 mm Cast Bloom to 138 mm x 150 nun Billet of GCr15 Bearing Steel[J]. Special Steel, 2021, 42(4): 42-46.
苟复钢, 王青海, 王东明, 等. GCr15 轴承钢 250 mm x 280 mm 铸坯至 138 mm x 150 mm坯粗轧数值模拟及工艺优化[J]. 特殊钢, 2021,42(4):42-46.DOI:
苟复钢, 王青海, 王东明, et al. Numerical Simulation and Process Improvement on Rough Rolling of 250 mm x 280 mm Cast Bloom to 138 mm x 150 nun Billet of GCr15 Bearing Steel[J]. Special Steel, 2021, 42(4): 42-46.DOI:
GCr15 轴承钢 250 mm x 280 mm 铸坯至 138 mm x 150 mm坯粗轧数值模拟及工艺优化
there is center porosity in rolled bar. A numerical simulation is carried out to study the penetration of effective strain in the core of bar and optimize the rough rolling pass technology
increase the reduction of the first two passes from original 21 mm and 58 mm to 51 mm and 85 mm respectively
and reduce the third pass from 60 mm to 34 mm. Through the effective strain value gradually increases with the increase of the pass
the tensile stress in the bar becomes compressive stress after the optimized process
and the uniformity of deformation is also obtained to promote the deformation of core of casting slab be available to the closure of the center porosity. After the process optimization
the qualified rate by ultrasonic detection of bearing steel increases from original 93.25% to 96.06%.