• CN：11-2187/TH
  • ISSN：0577-6686
机械工程学报

›› 1993, Vol. 29 ›› Issue (4): 87-92.

• 论文 • 上一篇    下一篇

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钢的大功率感应加热淬火超硬化

徐根应;安运铮   

  1. 安徽工学院;陕西机械学院
  • 发布日期:1993-07-01

STUDY ON THE HIGH INTENSITY INDUCTION SUPER-HARDENING

Xu Genying;An Yun Zhen   

  1. Anhui Institute of Technology Shanxi Institute of Mechanical Engineering
  • Published:1993-07-01

摘要： 采用自制的微机控制大功率感应加热系统对45、40Cr、GCr15和T10A钢实施表面淬火。试样表面获得超高硬度，高的表面残余压力应力。优化工艺参数，得到上述四种钢最佳淬火工艺规范。试样的回火特性及显微组织结构特点表明，“有效晶粒”超细化是超硬化的主要原因。高密度亚结构和高幅值残余应力对超硬化起附加作用。

关键词: 表面质量, 淬火, 感应加热

Abstract: The process here is characterized by its high power density. The high-frequency generator is controlled by micro-computer. Hardening processes are carried out on specimens of 45、GCr15 and T10A steels. The optimum process diagrams of steels 45 and GCr15 are established. Specimens give super-hardness and high residual compressive stress in the hardened case. The features of tempering and microstructure under TEM show that: effective grain refinement is mainly cause of super-hardness, high residual compressive stress and high density sub-structure have an important effect upon super-hardness.

Key words: Hardening, Induction heating, Surface quality

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