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What are the secondary characteristics and uses of silicon bronze


Silicon bronze: Bronze with silicon as secondary alloy element. Silicon bronze used in industry contains not only silicon, but also a large number of manganese, nickel, zinc or other elements. Silicon is infinitely soluble in copper. At 852C, the solubility of silicon can reach 5.3%, which decreases with the decrease of temperature. However, the aging hardening effect is not strong, and the heat treatment is usually not stopped.

Secondary Characteristics of Silicon Bronze

Silicon can improve the hardness and strength of copper without reducing its processing plasticity, but significantly reduce the conductivity and thermal conductivity of copper. Silicon bronze has high strength and hardness, good wear resistance and high elasticity. It is a good elastic material. Mechanics, corrosion resistance, wear resistance and welding function are good, no magnetism, no spark when impact. High wear resistance and low temperature strength. Its electrical conductivity is also higher than that of common high strength copper alloys.

Use of silicon bronze

Secondly, it is used to manufacture various elastic components and parts for tasks under corrosive conditions, as well as wear-resistant parts such as worm wheel, worm, gear, village sleeve, brake pin and rod. The aeronautical industry is mainly used as elastic components and small structural parts with high strength, such as combined airspeed meters, lifting speedometers and altimeter braces, rods, shafts, spring rings, etc. Intense cold deformation results in anisotropy of elastic function of data. Therefore, when using elastic components, attention should be paid to the direction of material acquisition and high temperature annealing of components. In machinery, chemical industry, petroleum, shipping and other industrial sectors are also widely used, manufacturing important parts for machinery industry and other sectors.