The self-designed clutch diaphragm spring induction tempering production line including induction heating hot-die,temperature measurement system and temperature controller system was introduced and the process parameters were determined through tests.

Having studied the relationship between tempered hardness and tempering temperature for hardened carbon steels, a tempering behaviour model is set up between hardness and temperature.

The qualitative analysis of tempering behaviour in hot.

The process of induction annealing in air for C.

Ti tubes by induction annealing were studied.

This paper briefly introduces three production processes applied in pipe production and discusses the feasibility of making brass condenser tube with the process of "extrusion - rolling - continuous induction annealing and horizontal continuous casting - three-roll planetary rolling - bull block drawing".

The induction hardening technology of diesel engine head valve seats and its process quality control;

Teach-in and Playback Control of Velocity Regulation in Induction Hardening;

Experimental Research on the Contact Fatigue of Induction Hardening Gear;