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.
蒋艳菊. 超快速冷却HRB500Ⅳ螺纹钢筋的生产[J]. 中国冶金, 2011, 21(12): 39-41.
JIANG Yan-ju. The Manufacturing Technology of Ribbed Bars Grade IV (500 Mpa) With Hot-Rolling and Extra-Fast Cooling. China Metallurgy, 2011, 21(12): 39-41.