Wear resistant impact hardfacing flux-cored wire used in tool manufacture of shield machine;

Effect of alloy elements and heat treatment technology on microstructure and property of hardfacing metal for cold scissors;

Field mobile welding machine for drilling tool hardfacing;

Effect of welding material component on high frequency surfacing process;

Ultrasonic signal character and quality evaluation of Cu/steel surfacing weld;

Development of special welding machine for inner surfacing welding of high-temperature cylinder;

Automatic surfacing welding method with equal thickness for circle plane;

Research on new technology of repairing rails tracks by surfacing welding;

The process of Ni-alloy build-up welding to improve the valve's sealing face was introduced.

Combined with specific experiences, it carries out chemical analysis for base metal of sprocket in drive gear, checks surface heat processing state, its welding capacity is also analyzed, and introduces specific build-up welding technology, the effect is good through test.

Withdrawal roll and wrapper rolls were strengthened by build-up welding against their short- life,using PYY125 tube welding wire+SSD welding flux as build-up welding materials.

Relationship between characterization of interface of overlaying welding and crackle forming;

Taking Fe_3Al as welding wire,overlaying welding was conducted on austenite stainless steel using gas arc tungsten welding process.

Arc-ultrasonic was successfully induced in the process of overlaying welding and thermal spraying.