Erosive cracking of Be-Co-Cu sheath of mould of φ140 mm horizontal continuous caster was checked and analyzed.

The paper introduced the grade,chemical composition and classification of beryllium copper alloy at home and abroad,as well as the performance and usage of cast beryllium copper and processed beryllium copper,with emphasis on the discussion of relationship between heat treatment process and properties of beryllium copper alloy,as well as the heat treatment equipment.

The alloy constitution,property and application in automotive industry of beryllium copper are introduced.

The performance,characteristics of heat treatment process and the research progress of beryllium copper alloy were introduced in computer,electronic,automotive,mold and other industry in recent year were summarized.

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;