Beryllium copper is a casting and forging material with high strength, high electrical conductivity, high thermal conductivity, wear resistance, fatigue resistance, non-magnetic, non-flammability, processability, and is widely used in various fields. middle. Strength Through precipitation hardening, it can reach high tensile strength (over 1350N/mm2) in copper alloys, which can even match steel. Conductive beryllium copper alloys have electrical conductivity in the range of about 20 to 55% IACS, and are widely used in applications requiring high electrical conductivity. Thermal conductivity Beryllium copper alloys have thermal conductivity in the range of about 120~250W/(m·K), and are widely used in applications requiring efficient heat dissipation. Corrosion-resistant beryllium-copper alloys have the strength of steel, while retaining the corrosion resistance of copper alloys, and they are not prone to crevice corrosion like stainless steel, and are widely used in applications requiring long-term corrosion resistance.
Introduction of beryllium copper: Beryllium copper, also known as beryllium bronze, is the “elasticity” in copper alloys. After solution aging heat treatment, products with high strength and high electrical conductivity can be obtained. High-strength cast beryllium bronze alloy, after heat treatment, not only has high strength, high hardness, but also has the advantages of wear resistance and corrosion resistance, excellent casting performance, beryllium bronze alloy is suitable for the manufacture of various molds, explosion-proof safety tools, wear-resistant Components such as cams, gears, worm gears, bearings, etc. High conductivity cast beryllium copper alloy, which has high electrical conductivity and thermal conductivity after heat treatment, beryllium copper alloy is suitable for making switch parts, strong contacts and similar current-carrying components, making clamps, electrode materials and plastic molds for resistance welding , Hydroelectric continuous casting machine mold inner sleeve, etc.
Application of beryllium copper: high beryllium copper has the characteristics of high strength, high hardness, high conductivity, high elasticity, wear resistance, fatigue resistance, corrosion resistance and small elastic lag, mainly used in temperature controllers, mobile phone batteries, computers, automobiles Spare parts, micro motors, brush needles, advanced bearings, glasses, contacts, gears, punches, all kinds of non-sparking switches, all kinds of welding electrodes and precision casting molds, etc.
Characteristics of beryllium copper: Mainly around the various working conditions of non-ferrous metal low-pressure and gravity casting molds, through in-depth research on the failure causes of beryllium bronze mold materials, its composition and the internal relationship of corrosion resistance of molten metal, the development of high electrical conductivity (thermal), high The high-performance beryllium bronze mold material combines strength, wear resistance, high temperature resistance, high toughness, and resistance to molten metal corrosion, which solves the problems of low pressure of domestic non-ferrous metals, easy cracking and wear of gravity casting molds, and significantly improves mold life. and casting strength; overcome the adhesion of molten metal slag and erosion of the mold; improve the surface quality of the casting; reduce the production cost; make the life of the mold close to the imported level. High-performance beryllium bronze mold material hardness is between (HRC) 38-43, density is 8.3g/cm3, the main addition element is beryllium, containing beryllium 1.9%-2.15%, it is widely used in plastic injection molding mold inserts, Die cores, die casting punches, hot runner cooling systems, thermal nozzles, integral cavities of blow molds, automotive molds, wear plates, etc.
Beryllium copper resistance welding electrode: Beryllium cobalt copper has higher mechanical properties than chromium copper and chromium zirconium copper materials, but electrical conductivity and thermal conductivity are lower than chromium copper and chromium zirconium copper. These materials are used as welding and seam welding electrodes. , It is used to weld stainless steel, high temperature alloys, etc. that still maintain the characteristics of high strength at high temperature, because high electrode pressure is required when welding such materials, and the strength of the electrode material is also required to be high. Such materials can be used as electrodes for spot welding of stainless steel and heat-resistant steel, electrode grips, shafts and electrode arms for force-bearing electrodes, as well as electrode hubs and bushings for seam welding of stainless steel and heat-resistant steel, molds, or inlaid electrodes. .