超快速冷却HRB500IV螺纹钢筋的生产  

The Manufacturing Technology of Ribbed Bars Grade IV(500 MPa) With Hot-Rolling and Extra-Fast Cooling

作　　者：蒋艳菊 

机构地区：[1]本溪北营钢铁(集团)公司钢研所,辽宁本溪117017

出　　处：《中国冶金》2011年第12期39-41,共3页China Metallurgy

摘　　要：利用20MnSiNb钢,通过轧后穿水冷却工艺,使Ф16mm钢筋力学性能达到了HRB500钢筋要求。为今后500MPa级螺纹钢筋生产奠定了基础。试验认为钢筋强度增加,主要源于细晶强化和相变强化。The essay briefly is introducing the water-cooling technology applied in the manufacturing process of the hot-rolled ribbed bars of 20MnSiNb.The mechanical property of the steel bars in the nominal diameter of 16 mm meets the requirement of the hot-rolled ribbed bars grade IV（500 MPa）,which provides the basis for the production of the hot-rolled bars of 500 MPa.The test result shows that the grain-refining and the phase transition contributes to the increase of the strength.

关 键 词：HRB500 螺纹钢筋 穿水冷却 

分 类 号：TG335.64[金属学及工艺—金属压力加工]