Development of the Breathable Steel and the Research of Its Application in the Plastic Mould;

Influence of the injection pressure to plastic mould core offset;

Study of the technology and fraction properties on chemical composition coating of the plastic mould;

Establishment of plastic die design quality evaluation system

In this paper,the methods have been found out to improve the resistance for the high temperature erosion-oxidation of plastic dies through the research for the reason of erosion-oxidation of dies surface that causes the invalidation of dies.

The applications of low carbon martensite in plastic die,cold-working die and hot-working die in recent years were summarized.

Development trend and classif ication of new material for injection mold;

Design and produce of CAD/CAM system of injection mold based on UG;

Design of an electronic spacer for screw thread core pulling in injection mold;

This article has introduced the significance of the application of CAD for the design of plastic mold,and expatiated on CAD integrated technology,its design and analysis.

Solid powder boronizations are carried out to the low-carbon steel plastic mold,the obtained boronization layer and the microstructure of substrate are studied,and hardness analysis are carried out to its boronization layer.

The application of CAD/CAE technology in plastic mold is roundly recounted.

Objective A simple RP-HPLC method was developed to explore the leaching behavior and concentration of seven environment estrogens simultaneously in volatile gas of plastic toys.