排序方式: 共有17条查询结果,搜索用时 15 毫秒
1.
2.
3.
4.
5.
通过对上钢一厂耐材分厂300t双盘摩擦压力机力能参数的测定,找出了该设备存在的薄弱环节。由此经过改造,使其压砖能力由原来的300t提高到500t。 相似文献
6.
应用有限元的方法模拟了异步轧制过程,并对轧制压力进行了分析研究。轧制压力的模拟结果与理论计算结果吻合较好。模拟结果表明,随着速比的增加,轧制压力逐渐减小并趋于稳定。对异步轧机的设计和轧制工艺的制定具有参考意义和应用价值。 相似文献
7.
8.
9.
根据高碳钢盘条索氏体化转变机理,对标准型斯太尔摩控制冷却线及高碳钢盘条的控制冷却工艺进行了探索,指出了该冷却线控制冷却的特点、问题和改进措施. 相似文献
10.
Asymmetric rolling(ASR), as one of severe plastic deformation(SPD) methods, was widely used to make ultra-fined materials with enhanced performance. Internal marks were used to show the shear deformation during asymmetric rolling with pure aluminium as a model material. Effects of reduction ratio and mismatch ratio on the shear deformation were studied. With the observed shear deformation results, equivalent strain was calculated. For lager shear deformation, rolling equipment was modified to increase friction between specimen and the rollers. Consequently, extremely fine grains with size of 500 nm are obtained in pure aluminium. With improved asymmetric rolling, the ability of grain refinement of ASR is greatly improved. 相似文献