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新一代TMCP-轧后超快速冷却技术生产热轧带肋钢筋是一种创新性的适用技术。它与轧后余热淬火工艺所生产的产品在轧件性能上有明显区别,主要是在提高强度的同时可以提高材料韧性。这对于抗震钢筋和使用20 MnSiV或20 MnSiNb钢种生产HRB500级别钢筋是必不可少的技术。研究者们曾用一年时间,从60万t的产品中抽取6～32 mm规格,经省级建筑检验部门检验。检验内容有:化学成分分析、金相组织分析、力学性能实验、焊接实验、机械连接实验、锈蚀程度比对、构件实验及工程应用实验等等,性能优良。自2006年开始,已经得到了较大面积的推广,目前年产量大约700万t。
A new generation of TMCP-ultra-rapid cooling after rolling technology to produce hot-rolled ribbed steel is an innovative and applicable technology. It is rolled with the residual heat hardening process products produced by the significant difference in the performance of the rolling, mainly to improve the strength of the same time can improve the toughness of the material. This is an essential technique for seismic rebars and the production of HRB500 grade rebar using 20 MnSiV or 20 MnSiNb grades. Researchers have spent a year, from 600,000 t product extraction 6 ~ 32 mm specifications, the provincial construction inspection department inspection. The test contents include: chemical composition analysis, metallographic analysis, mechanical properties test, welding test, mechanical connection test, corrosion degree comparison, component experiment and engineering application experiment, etc., with excellent performance. Since 2006, a large area has been popularized. At present, the annual output is about 7 million tons.