The copper alloy with beryllium as the main alloying element is also called beryllium bronze.
It is a high-grade elastic material with the best performance among copper alloys. It has high strength, elasticity, hardness, fatigue strength, small elastic lag, corrosion resistance, wear resistance, cold resistance, high conductivity, non-magnetic, and no sparks when impacted. A series of excellent physical, chemical and mechanical properties.
Edit this paragraph beryllium copper classification
There are processed beryllium bronze and cast beryllium bronze.
Commonly used cast beryllium bronzes are Cu-2Be-0.5Co-0.3Si, Cu-2.6Be-0.5Co-0.3Si, Cu-0.5Be-2.5Co, etc. The beryllium content of processed beryllium bronze is controlled below 2%, and domestic beryllium copper is added with 0.3% nickel or 0.3% cobalt.
Commonly processed beryllium bronzes are: Cu-2Be-0.3Ni, Cu-1.9Be-0.3Ni-0.2Ti, etc.
Beryllium bronze is a heat treatment strengthened alloy.
Processed beryllium bronze is mainly used for various advanced elastic components, especially those requiring good conductivity, corrosion resistance, wear resistance, cold resistance, and non-magnetic properties, and is widely used for diaphragms, diaphragms, bellows, and micro switches. Wait.
Casting beryllium bronze is used for explosion-proof tools, various molds, bearings, bearing bushes, bushings, gears and various electrodes.
Oxides and dusts of beryllium are harmful to human body, so attention should be paid to protection during production and use.
Beryllium copper is an alloy with good mechanical, physical and chemical comprehensive properties. After quenching and tempering, it has high strength, elasticity, wear resistance, fatigue resistance and heat resistance. At the same time, beryllium copper also has high electrical conductivity. High thermal conductivity, cold resistance and non-magnetic, no sparks on impact, easy to weld and braze, excellent corrosion resistance in atmosphere, fresh water and sea water. Corrosion resistance rate of beryllium copper alloy in seawater: (1.1-1.4)×10-2mm/year. Corrosion depth: (10.9-13.8)×10-3mm/year. After corrosion, there is no change in strength and elongation, so it can be maintained in water for more than 40 years, and it is an irreplaceable material for submarine cable repeater structures. In sulfuric acid medium: in sulfuric acid with a concentration of less than 80% (room temperature), the annual corrosion depth is 0.0012-0.1175mm, and the corrosion is slightly accelerated when the concentration is greater than 80%.
Edit this paragraph beryllium copper properties and parameters
Beryllium copper is a supersaturated solid solution copper-based alloy. It is a non-ferrous alloy with good combination of mechanical properties, physical properties, chemical properties and corrosion resistance. After solid solution and aging treatment, it has high strength limit, elasticity and elasticity. Limit, yield limit and fatigue limit, and at the same time have high electrical conductivity, thermal conductivity, high hardness and wear resistance, high creep resistance and corrosion resistance, widely used in the manufacture of various mold inserts, instead of steel production High-precision, complex-shaped molds, welding electrode materials, die-casting machines, injection molding machine punches, wear-resistant and corrosion-resistant work, etc. Beryllium copper tape is used in micro-motor brushes, mobile phones, batteries, and products, and is an indispensable and important industrial material for national economic construction.
Parameter:
Density 8.3g/cm
Hardness≥36-42HRC
Conductivity≥18%IACS
Tensile strength≥1000mPa
Thermal conductivity≥105w/m.k20℃
Edit the use and performance parameters of beryllium copper in this paragraph
High-performance beryllium copper mainly focuses on various working conditions of non-ferrous metal low-pressure and gravity casting molds. Through in-depth research on the failure cause, composition and internal relationship of metal liquid corrosion resistance of beryllium bronze mold materials, it has developed 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. , demoulding speed 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. Pine fir high-performance beryllium copper hardness HRC43, density 8.3g/cm3, beryllium 1.9%-2.15%, it is widely used in plastic injection mold inserts, mold cores, die-casting punches, hot runner cooling systems, thermal nozzles , the overall cavity of blow molds, automobile molds, wear plates, etc.