李秀莲, 苟复钢. Effect of Roll Pass Design for Stretch Reducing Mill with Faint Tension on Hexagonal Bore of Heavy Walled Tube of 0.45C Steel[J]. Special Steel, 2009, 30(6): 20-22.
李秀莲, 苟复钢. Effect of Roll Pass Design for Stretch Reducing Mill with Faint Tension on Hexagonal Bore of Heavy Walled Tube of 0.45C Steel[J]. Special Steel, 2009, 30(6): 20-22.DOI:
使3辊式机组生产的Φ114 mm×22 mm 45钢管"内六方"缺陷指数P值由1.40%~1.52%降至0.45%~0.67%
明显减少微张力减径钢管的"内六方"缺陷。
Abstract
With decreasing the outside diameter of 0. 45C steel tube before 6 stands reducing and the total reducing rate respectively from 132 mm and 12. 95% to 128 mm and 9. 87%
decreasing single stand reducing rate and improving roll pass design parameters for faint tension reducing
the hexagonal bore index P value of Φ114 mm x 22 mm 0. 45C steel tube produced by three roll mill decreases to 0. 45% - 0. 67% from original 1.40% 〜1.52%
therefore the deformity of hexagonal bore of faint tension-stretched reducing steel tube is obviously decreasing.