改进型M2高速钢顶头的研究和应用

详细信息

Research and Application of Innovated M2 High Speed Steel Plug

摘要: 采用RE-Al-N对M2铸造高速钢进行变质处理,消除了钢中网状共晶碳化物,细化了基体组织,减轻了W、Mo元素的偏析,并在不降低M2高速钢硬度的条件下,使韧性大幅度提高。变质处理后的M2铸造高速钢具有优异的抗热疲劳性能和抗高温磨损性能,用于制造热轧无缝钢管均整机顶头,具有良好的使用效果。
- 高速钢 /
- 变质处理 /
- 共晶碳化物 /
- 热疲劳 /
- 耐磨性 /
- 顶头
Abstract: The cellular eutectic carbide is eliminated, the matrix fined and the segregation of elements W and Mo reduced in M2 cast high speed steel after it is metamorphism-treated with modificator RE-Al-N. Also its toughness is greatly increased without increasing its hardness. Thanks to the said treatment the M2 cast high speed steel possesses excellent heat fatigue resistance and high temperature wear resistance, which leads to satis-factory effectiveness of the plug made thereof for seamless steel tube reeling mill.
- High speed steel /
- Metamorphism treatment /
- Eutectic carbide /
- Heat fatigue /
- Wearing resistance /
- Plug