The rational process for producing the steel is recommended on the basis of analyzing the emergence and developing mechanism of cracks in shells of the steel during hot piercing.
分析了热穿孔过程中毛管裂纹的产生及扩展机理。推荐了生产该钢种的合理工艺。
The piercing process of seamless steel tube is a hot working process, the distribution of plug temperature is very important to its service life.
无缝钢管的穿孔过程是一个热加工过程，顶头的温度分布对于其寿命至关重要。
The test of sulphurized tufftride process for treating the hot piercing punch for steel pipes is introduced.
介绍了钢管热冲孔凸模硫氮碳共渗工艺试验。
应用推荐