What are the commonly used metal parts?

u200b The metal parts product industry also encounters many difficulties in the development process, such as single technology, low technical level, lack of advanced equipment, shortage of talents, etc., which restrict the development of the metal parts product industry. For this reason, we can take measures to improve corporate technology. Level, the introduction of advanced technology and equipment, and the training of suitable talents to improve the development of China’s metal products industry.u200b Metal materials can be divided into two categories: iron and steel and non-ferrous metals (or non-ferrous metals). Alloys of iron with a carbon content of 2% to 4.3% are cast iron, and iron with a carbon content of generally 0.03% to 2%. The alloy is steel. In Fe-C alloy, various alloying elements are purposefully added to improve the strength, hardness, wear resistance and corrosion resistance of steel. Commonly used alloying elements are Si, Mn, Cr , Ni, Mo, W, V, Ti, Nb, B, etc., forming all kinds of alloy cast iron or alloy steel.u200b Non-ferrous alloys can be roughly divided into: light alloys (aluminum alloys, titanium alloys, magnesium alloys, beryllium alloys, etc.), heavy non-ferrous alloys (copper alloys, zinc alloys, manganese alloys, nickel alloys, etc.), low melting point alloys (lead, tin, etc.) , Cadmium, bismuth, indium, gallium, mercury and their alloys), refractory alloys (tungsten alloys, molybdenum alloys, niobium alloys, tantalum alloys, etc.), precious metals (gold, silver, platinum, palladium, etc.) and rare earth metals. Among them, the most widely used is aluminum alloy. According to statistics, 71% of the entire structure of the Concorde supersonic aircraft is made of special aluminum alloys; high-speed trains, automobiles and other transportation vehicles have increasing demand for aluminum profiles; more and more aluminum materials are used for architectural decoration. It is beautiful and corrosion-resistant; the amount of aluminum wires in power systems and household appliances exceeds copper wires; aluminum foil can be used for packaging food and cigarettes; aluminum alloy can also be used as capacitors, etc.