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一、引言海上采油平台用钢和造船、锅炉、压力容器等重要焊接结构用钢,不仅要求沿钢板长度和宽度方向上有良好的机械性能,而且要求在钢板厚度方向即Z向也有良好的抗层状撕裂能力。抗层状撕裂能力主要是测定钢板Z向断面收缩率ψ_z值,目前在我国缺乏这方面的资料,本研究主要测定厚度为50mm～70mm的16MnR钢板z向拉伸性能及其影响性能的因素。二、硫对Z向ψ_z值的影响 16MnR厚钢板,由转炉和平炉冶炼。硫
I. INTRODUCTION Steel used in offshore oil production platforms and important structural steel for welding such as shipbuilding, boilers and pressure vessels not only requires good mechanical properties along the length and width of the steel sheet, but also requires good resistance in the direction of the thickness of the steel sheet, ie, in the Z direction Layered tear ability. The ability of anti-lamellar tearing is mainly used to determine the ζ_z value of the Z-section reduction of steel plate. At present, there is a lack of data in this area. The main research work is to determine the z-direction tensile properties of 16MnR steel with thickness of 50mm-70mm and its influencing factors . Second, the impact of sulfur on the Z-value of ψ_z 16MnR thick steel, smelting furnace and open hearth. sulfur