Beryllium bronze has wear-resisting,  good low temperature resistance, impact nonmagnetic, high electrical conductivity, no spark and so on. At the same time also has good liquidity and the ability to reproduce fine decorative pattern. Due to many superior properties of beryllium copper alloy, make its got the extensive application in manufacturing industry.

brand

1. China: QBe2, QBe1.7

2. The United States (ASTM) : C17200, C17000

3. The United States (CDA) : 172, 172

4. Germany (DIN) : QBe2, QBe1.7

5. Germany (digital system) : 2.1247, 2.1245

6. Japan: C1720 C1700

use

In high-performance beryllium bronze hardness (HRC) between 38-43, density 8.3 g/cm3, contain beryllium by 1.9% to 2.15%, its widely used in plastic injection molding mold insert, the mold core and die casting punch, hot runner system, cooling the whole of the thermal conductive mouth, blow molding mould cavity, auto mould, wear plate, etc.

Process problems

Developments beryllium copper concentrates on low pressure, gravity, non-ferrous metal casting mold used in various conditions, through in-depth study of beryllium bronze mould material failure cause metal erosion resistance, composition and internal relations, has developed a highly conductive (hot), high strength, wear resistance, high temperature resistance, high toughness, combination of high-performance metal erosion beryllium bronze mould material, solved the domestic low pressure and gravity casting non-ferrous metal mold is easy to crack, easy to wear, significantly improve the die life, mold release speed and casting strength; To overcome the metal liquid slag adhesion and erosion mould; Improves the surface quality of castings; Reducing the production cost; Make die life close to the level of imports.

Process description

Solution: beryllium bronze artifacts heated to high temperatures (800-815 ℃) and constant temperature for 2-3 hours, copper, beryllium completely dissolved to form homogeneous state;

Quenching: beryllium copper cooling in water, enough time make beryllium atom diffusion, formation of supersaturated state;

Limitation: use the supersaturated workpiece heating vacuum heat treatment furnace to lower aging temperature (340 + / 5 ℃), because of the supersaturated state is not stable, extra beryllium atomic short-range diffusion and precipitation, the heat preservation for 2-3 hours, precipitate excess and beryllium copper will reach balance, obviously improve the mechanical properties at this time.