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Take You Know Tin Bronze
Dec 13, 2017

It contains 3% to 14% tin of bronze, in addition to the addition of phosphorus, zinc, lead and other elements. It is the earliest alloy of human application and has been used for about 4000 years. It is resistant to corrosion, wear-resistant, has good mechanical and technological properties, and can be welded and brazed well, and no spark is produced when the impact is impacted. It is divided into the processing of tin bronze and the casting of tin bronze. The tin content of tin bronze for pressure processing is less than 6% ~ 7%, and the tin content of the cast tin bronze is 10% ~ 14%. The commonly used brands are QSn4-3, QSn4.4-2.5, QSn7-O.2, ZQSn10, ZQSn5-2-5, ZQSN6-6-3 and so on. Tin bronze is a non-ferrous alloy with the smallest casting shrinkage rate, which can be used to produce castings with complex shape, clear outline and low air tightness. Tin bronze is very anticorrosive in the atmosphere, sea water, fresh water and steam, and is widely used in steam boilers and marine parts. Tin Phosphorus Bronze has good mechanical properties, can be used as wear parts and high precision machine tools for elastic parts. With bronze used as wear parts and sliding bearing. Zinc tin bronze can be used as a high gas tightness castings.

The solidification range of tin bronze, serious dendrite segregation; solidification is not easy to form the shrinkage, shrinkage is small; inverse segregation of tin ingot prone, serious when the ingot surface can be seen as white spots (8 phases), and even the emergence of tin rich particles, commonly known as tin Khan (tinsweat). Improvement of casting method and process conditions can reduce the inverse segregation degree; liquid alloy, tin easily generate SnO2 inclusions of hard and brittle, melting to fully prevent deoxidation, due to a decrease in the mechanical properties of the alloy caused by inclusions; sensitivity to overheating and gas is very small, good welding and brazing; no spark shocks. Non magnetic, cold resistant, and has extremely high wear resistance.

Tin bronze is a non-ferrous alloy with the smallest casting shrinkage rate, which is used to produce castings with complex shapes, clear outlines and low air tightness. Tin bronze is very anticorrosive in the atmosphere, sea water, fresh water and steam, and is widely used in steam boilers and marine parts. Tin Phosphorus Bronze has good mechanical properties, can be used as wear parts and high precision machine tools for elastic parts. With bronze used as wear parts and sliding bearing. Zinc tin bronze can be used as a high gas tightness castings.


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