摘要
舞钢新宽厚板生产线MULPIC在线快冷装备具有高速冷却等技术特点,结合控制轧制和在线快冷装备,采用直接淬火(DQ)工艺,研究开发了最高级别至960 MPa的系列高强工程机械用钢。结果表明:利用直接淬火和离线回火的工艺,可生产出40 mm厚的WQ960E调质钢,屈服强度达到1 010 MPa,抗拉强度达到1 070 MPa,-40℃横向冲击功均值达到41 J以上。
Based on the rapid cooling rate feature of MULPIC online accelerated cooling device in Wugang′s new wide and heavy plate production line,a series of high strength construction machinery steel of higher grade up to 960 MPa has been developed with DQ technique,combining the controlled rolling and online accelerated cooling device.The results show that,for the 40 mm thickness WQ960E quenched and tempered steel plate produced by DQ and offline tempering process,the yield strength is 1 010 MPa,the tensile strength is 1 070 MPa,and the energy value of transverse impact test at-40 ℃ is above 41 J.
出处
《宽厚板》
2011年第1期10-12,42,共4页
Wide and Heavy Plate
