Metal powder metallurgy is a process technology for preparing metal or using metal powder (or a mixture of metal powder and non-metal powder) as raw material, after forming and sintering, to manufacture metal materials, composites and various types of products.
Metal powder metallurgy products have been known as "one of the most popular metal parts forming technologies in the world". Its main processing technologies include powder pressing, powder injection molding, and 3D printing. The product design, formula, mold, forming process, degreasing, sintering process and secondary processing in the process of characteristic determination ultimately determine the quality of the product.
Metal powder metallurgy products are made by metal powder injection molding process. It is a new near-net-shape technology developed by combining traditional powder metallurgy technology with plastic injection molding process. The purpose of forming is achieved by means of injection molding, and finally powder metallurgy products are obtained by degreasing and sintering. The main technical key is that fine powder suitable for solid-state sintering operation needs to have good shape retention. To achieve better sintered body density, the higher the tap density of the powder, the higher the density of the sintered part. Sophisticated binder additives, fully mixed and fully fed, high-precision molds, fast-replicating injection molding machines, high-speed and safe and effective catalytic degreasing, solid-state sintering, application of metal phase diagrams, material science knowledge, to To ensure the compactness and shape retention of the green embryo to the sintered body, so as to achieve high-quality products.
