【摘要】 针对120 mm厚Q460GJCZ35高建钢强度富余量不足及Z向性能不稳定情况，采取添加0.06%～0.10%的Mo元素改善了钢板强度，减少了厚度方向的强度差异；通过采用洁净化冶炼、温差轧制以及轧后钢板堆冷等措施，改善了Z向性能。经优化后，120 mm厚Q460GJCZ35高建钢性能和质量控制稳定，强度富余量充足，Z向性能良好，达到预期效果。更多还原

【Abstract】 In response to the insufficient surplus strength and unstable Z-direction performance of 120 mm thick Q460GJCZ35 steel,the strength of the steel plate was improved by adding 0.06% to 0.10% Mo element,reducing the strength difference in the thickness direction;the Z-directional performance has been improved through clean smelting,differential temperature rolling,and post rolling steel plate stacking cooling measures. The results show that the optimized 120 mm thick Q460GJCZ35 steel has stable performance and quality control,sufficient strength surplus,the Z-directional performance is excellent,achieving the expected effect.更多还原