Introduction to the use and application of tin

（1）Introduction to tin application： Tin is one of the earliest metals used by mankind and one of the most widely used metals. It has soft texture, low melting point, strong malleability, strong plasticity and non-toxic properties. It is mainly used in the manufacture of solder and tinplate. , alloys, chemical products, etc. It is widely used in electronics, information, electrical appliances, chemicals, metallurgy, building materials, machinery, food packaging, atomic energy and aerospace industries. As the economy develops, its application fields will continue to expand. The specific application is as follows.

（2）Solder： Solder: mainly refers to a solder with a lower melting point made of a tin-based alloy. With the development of the industry and the EU's environmental requirements, the gradual lead-free solder instead of lead solder is an inevitable trend in the development of the global electronics manufacturing industry. At the same time, tin solder is the main application of tin in the electronics industry for electronic soldering, which currently accounts for 70% of the downstream applications of tin in China. In addition, tin-plated steel and tin chemicals account for 8% and 12% of downstream applications, respectively.

（3）Tin alloy： The most common alloys are tin-based bearing alloys of tin and antimony, copper, and lead-based bearing alloys of lead, tin, and antimony. They can be used to manufacture bearings for high-speed, high-pressure mechanical equipment such as steam turbines, generators, and airplanes. Tin-containing bronze is currently used mainly in the manufacture of wear-resistant parts and corrosion-resistant equipment, and is widely used in ships, chemicals, construction, currency and other industries. Tin is added to the brass to form tin brass, which is commonly used in the manufacture of marine parts and welded strips. It is known as “navy brass”. In the industry, tin is often plated on copper wire or other metals to prevent these metals from being corroded by acids and bases. Tin can also be made into a movable alloy with other metals (as the promotion of laser printing technology, lead characters will be gradually eliminated), Babbitt alloys, titanium-based alloys and antimony-tin alloys, for atomic energy industry, aviation industry, superconducting Materials and advanced technology areas such as spacecraft manufacturing.