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What parts of tin bronze castings can be used in practice?
- Aug 16, 2017 -


Copper is a very typical non-ferrous metal, it is widely used in various fields, in addition to aluminum, it is used more. Tin bronze is a kind of bronze with tin as its main alloying element. Its tin content is generally controlled between 3 and 14%. Tin bronze castings can be used as elastic elements and wear-resistant parts.
Because tin bronze is a kind of casting shrinkage in many nonferrous alloys, it is very suitable for producing castings with complex shape, clear outline and low air tightness. Tests have shown that tin bronze castings are very corrosion-resistant in the atmosphere, sea water, fresh water and steam, so they are widely used as steam boilers and marine parts.
In the production of tin bronze castings, sometimes adding phosphorus, lead, zinc and other elements, because phosphorus is good deoxidizing agent, so it's added liquidity and can improve the wear resistance of tin bronze castings; and tin bronze with lead can improve the machinability and wear resistance, and can improve the casting of zinc the performance, which makes the performance of tin bronze castings has changed.

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                                                                clack valve castings

Add other elements of the alloy has good mechanical properties, wear resistance and corrosion resistance, and has the advantages of easy cutting, brazing and welding performance is good, the contraction coefficient is small, no magnetism and other advantages, so it can be used for wire flame spraying and arc spraying preparation of bronze bushing, sleeve, diamagnetic components such as tin bronze castings.
In practice, most of the high precision machine tools wear parts and elastic parts are phosphorus bronze castings used; and wear parts and sliding bearings are used with bronze castings; zinc tin bronze casting has become the ideal choice for high air tightness of parts.

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