Copper is a non-ferrous metal closely related to human beings. It is widely used in electrical, light industry, machinery manufacturing, construction industry, national defense industry and other fields. It is second only to aluminum in the consumption of non-ferrous metal materials in my country.
Tin bronze is a non-ferrous metal alloy with the smallest casting shrinkage rate. It is used to produce castings with complex shapes, clear contours and low air tightness requirements. Tin bronze is very resistant to corrosion in the atmosphere, sea water, fresh water and steam, and is widely used in steam boilers and marine ship parts. Phosphorus-containing tin bronze has good mechanical properties and can be used as wear-resistant parts and elastic parts of high-precision machine tools. Leaded tin bronze is often used as wear-resistant parts and sliding bearings. Zinc-tin bronze can be used as high-airtight castings.
Tin bronze is the most widely used and used in the electrical and electronic industries, accounting for more than half of the total consumption. Used in various cables and wires, motors and transformers, switches and printed circuit boards are used in the manufacture of machinery and transportation vehicles, used in the manufacture of industrial valves and fittings, meters, sliding bearings, molds, heat exchangers and pumps. It is widely used in the chemical industry to manufacture vacuum vessels, distillation pots, brewing pots, etc. In the defense industry, it is used to manufacture bullets, shells, gun parts, etc. For every 3 million bullets produced, 130-140 tons of copper are needed. In the construction industry, it is used as various pipes, pipe fittings, decorative devices, etc.
Tin bronze Bronze with tin as the main alloying element. The tin content is generally between 3 and 14%, which is mainly used to make elastic components and wear-resistant parts. The tin content of wrought tin bronze does not exceed 8%, and sometimes phosphorus, lead, zinc and other elements are added. Phosphorus is a good deoxidizer and can also improve fluidity and wear resistance. Adding lead to tin bronze can improve machinability and wear resistance, and adding zinc can improve casting performance. This alloy has high mechanical properties, anti-wear properties and corrosion resistance, easy cutting processing, good brazing and welding properties, small shrinkage coefficient, and non-magnetic. Wire flame spraying and electric arc spraying can be used to prepare coatings such as bronze bushings, shaft sleeves, diamagnetic elements, etc. The size specifications are Ф1.6mm and Ф2.3mm. With high strength, corrosion resistance and excellent casting performance, it has been widely used in various industrial sectors for a long time.
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