Effect of vacuum casting process on microstructure and properties of CuCr alloy;

Cause analysis of cracking of front fracture of the beryllium-bronze bar during extrusion process;

It is deformation contrast test with different pH indicator of quenching liquor by using macromolecule liquor PVA as beryllium-bronze's quenchant.

The material of sense organ is beryllium-bronze,it has good elasticity,and fitting to make elastic vibration element,an accelerometer being sensed by capacitance was researched,the signal pickup circuit of dynamics sensor being sensed by differential capacitance was developed.

Study on the organization and performance of the product extruded from beryllium bronze;

Bending technology of beryllium bronze parts and design of the die;

Fracture cause and technology improvement method of beryllium bronze spring;