对150 mm×150 mm连铸坯轧制Φ12 mm SCM435合金冷镦钢(%:0.35C、0.98Cr、0.16Mo)盘条的工艺试验表明:采用1020℃加热
900℃轧制
吐丝温度控制在780~800℃
相变前冷却速度控制在1℃/s左右
该钢可以获得均匀的铁素体+珠光体组织和良好的冷镦性能。
Abstract
The test results of process for Φ12 mm SCM435 alloy steel(0 .35C
0 .98Cr
0 . 16Mo)coil rolled by 150 mm×150 mm concasting billet showed that the uniform structure of ferrite + pearlite and excellent cold heading perform- ance of steel were got by heating billet at 1020℃
rolling at 900 ℃
controlling spinning temperature at 780~800 ℃ and cooling rate before phase transformation 1℃/s.