Powder Metallurgy Molding Technology

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Powder metallurgy is a processing method that prepares metal powder and makes products from metal powder or a mixture of metal powder and non-metal powder through processes such as shaping and sintering. It can not only prepare special materials that are difficult to prepare by ordinary smelting methods, but also manufacture various products. A kind of precision mechanical parts, saving labor and materials. However, the cost of molds and metal powder is high, and it should not be used when the batch size is small or the size of the product is too large. Compared with traditional material processes, powder metallurgy materials and processes have the following characteristics:

Powder metallurgy is a processing method that prepares metal powder and makes products from metal powder or a mixture of metal powder and non-metal powder through processes such as shaping and sintering. It can not only prepare special materials that are difficult to prepare by ordinary smelting methods, but also manufacture various products. A kind of precision mechanical parts, saving labor and materials. However, the cost of molds and metal powder is high, and it should not be used when the batch size is small or the size of the product is too large. Compared with traditional material processes, powder metallurgy materials and processes have the following characteristics:

1. The powder metallurgy process is carried out at a melting point lower than the base metal, so it can obtain multi-phase heterogeneous special functional composite materials and products such as a variety of metals, metals and ceramics, metals and plastics with widely different melting points and densities. .
2. Improve material performance. Fine metal or alloy powder prepared by a special method has extremely fast solidification speed and fine and uniform grains, ensuring a uniform structure of the material, stable performance, and good cold and hot processing properties, and the powder particles are not affected by alloy elements and content Limitation, the reinforcing phase content can be increased, thereby developing new material systems.
3. Using various forming processes, powder raw materials can be directly formed into blanks or net-shape parts with little or no margin, greatly reducing the amount of machining. Improve material utilization and reduce costs.