10B33冷镦盘条的试制

根据10B33冷镦盘条对化学成分、力学性能、表面质量、冷顶锻检验等方面的要求,通过控制轧制坯料的质量、轧制压下量、轧制孔型等提高盘条表面质量。采用控轧控制工艺生产10B33冷镦盘条:粗轧开轧温度约为950℃,轧件进精轧机温度为920℃,吐丝温度为900℃,斯太尔摩控冷线控制冷却。成品10B33冷镦钢盘条组织为铁素体+珠光体,晶粒度9.5~10级,脱碳层深度≤0.01 mm;屈服强度360~400 MPa,抗拉强度595~650 MPa;冷镦检验全部合格。

Trial production of 10B33 cold heading wire rod

Wire rod surface quality is improved by controlling rolling billet quality, rolling reduction, rolling hole pattern etc. According to requirements of 10B33 cold heading wire rod on aspects of chemical composition, mechanical properties, surface quality, cold upsetting inspection. The controlled rolling and controlled cooling adopted in producing 10B33 cold heading wire rod are as follows： rough rolling start rolling temperature is about 950℃, rolled piece entering finishing mill temperature is 920℃, wire laying temperature is 900 ~（2, Stelmor controlled cooling line is adopted to control cooling. Structure of finished product 10B33 cold heading steel wire rod is ferrite and pearlite, grain size grade is from 9.5 to 10, decarburized layer depth is no more than 0.01 ram, yield strength is 360 to 400 MPa, tensile strength is 595 to 650 MPa, cold heading inspection are all qualified.