高强度中厚板辊式矫直策略分析

以开发厚规格、高强度品种钢过程中频繁出现的矫不平现象为背景,采用弹塑性差分的曲率积分方法,研究了高强度钢板矫直过程中塑性变形率、残余曲率和矫直力的变化规律,分析得出额定矫直力和塑性变形率是制约高强度钢板矫平的主要因素.针对矫直能力小的矫直机提出采用增加矫直道次、改变矫直辊距以及静压矫直三种方法来解决高强度钢板矫不平问题的矫直策略.现场实践证明静压矫直方法能够矫直传统矫直不能矫的高强度板材.

Analyzing Roller Leveling Strategies for High-Strength Steel Plates

With the advent of heavy grade steel plating,the problem of leveling high-strength steel plates has become a bottleneck in the development of high-strength steel.Curvature integration by elastic-plastic differences was used for high-strength plate leveling due to the leveling problem that frequently emerges during development of heavy grade high-strength steel.In this investigation,parameters including plastic deformation ratio,residual curvature,and leveling force were studied,given that the rating leveling force and plastic deformation ratio were the main facts restricting high-strength leveling.Finally,strategies for low capability levelers were obtained,including increased leveling pass,alteration roll pinching,and static pressure leveling,for leveling high-strength steel plates in production.