In order to enlarge the applied range of ADI,we explored the feasibility of surface heat treatment by two different processes of high-frequency quenching for ADI.

The grinding hardening is a new surface heat treatment process using grinding heat which induce martensitic phase transformation in the surface layers of annealed or tempered steels to achieve surface strengthening processes and integrate the surface hardening process with the machining process.

Present status of new-type high speed steels and surface heat treatment is reviewed, and more attention is paid to new-type low-alloyed high speed steels, ultra-hard high speed steels, sintered metal matrix composites based upon high speed steels, laser heat treatment and PVD technology.

In this paper,the developments of surface treatment in metals are reviewed from the point of blast grit,surface heat-treatment and high energy surface treatment.

Application of laser surface thermal treatment technology in tubing processing;

In order to solve the problem of thread gluing of the tubing,Henan Oilfield Machinery Manufacture Factory performs the quenching treatment of tubing and collar surfaces by means of laser surface thermal treatment.

Effect of fiber surface treatment on the microstructure and mechanical properties of mesophase pitch-based C/C composites;

Influence of NiTi alloy fiber surface treatment on shear strength of resin matrix composites;

Effect of surface treatment methods on properties of adhesive;

Continuous surface modification of UHMWPE fibers;

Experimental research on surface modification by EDM through TiC semi-sintered electrode;

Synthesis of addition liquid vinylsiloxane rubberⅡ.Influence of surface modification of fumed silica on properties of silicone rubber;