When a energy density of a laser beam is high enough, a removable crucible metallurgy on the material surface can be carried out, and the target of remelting, carburization, alloying a.
试验和实践证明,在激光表面强化的过程中,奥氏体稳定性和淬透性对金属材料性能的影响不是致关重要的;低等级材料通过激光表面强化可以达到高等级材料的相变性能;当激光束能量密度足够高时,可进行材料表面的移动坩埚冶金,实现材料表层重熔、表层增碳、表层合金化和表面熔覆。
In this paper, the method of prolonging the service life of Pt crucible in the process of producing BNfiber with inorganic precursors method was introduced.
介绍了铂金拉丝坩埚在化学转化法制备BN纤维拉丝过程中,对铂金均埚进行的加拼、焊接、横向内筋和调整铂(Pt)锗(Rh)掺合量,来延长铂金坩埚的使用寿命,提高铂合金材料的刚性强度、抗弯断面系数等方面进行了探讨。