Metal injection molding is a molding method in which a plasticized mixture of metal powder and its binder is injected into a mold. It is to first mix the selected powder with the binder, and then granulate the mixture and then inject the required shape. The polymer imparts its viscous flow characteristics to the mixture, and contributes to the uniformity of forming, cavity filling and powder filling. After forming, the binder is removed, and the degreased body is sintered. Some sintered products may need to be further densified, heat treated or machined. The sintered product not only has the same complex shape and high precision as the product obtained by the plastic injection molding method, but also has physical, chemical and mechanical properties close to the forging. This process technology is suitable for mass production of small, precise, three-dimensionally complex metal parts and components with special performance requirements.
◇It can produce small metal parts with complex shapes (0.1-500g) like plastic products;
◇Each part of the workpiece has uniform organization, high dimensional accuracy, and high relative density (≥95%);
◇Good surface finish;
◇The product quality is stable, the production efficiency is high, and it is easy to realize large-scale and large-scale production.
MIM technology is suitable for materials
Iron-based alloy steel, stainless steel, nickel-based alloy, tungsten alloy, cemented carbide, titanium alloy, magnetic material, Kovar alloy, fine ceramics, etc.