Powder Metallurgy
Powder metallurgy is a process technology for producing metal powder or using metal powder (or a mixture of metal powder and non-metal powder) as raw material, forming and sintering to manufacture metal materials, composite materials and various types of products. The powder metallurgy method has similarities with the production of ceramics, and both belong to the powder sintering technology. Therefore, a series of new powder metallurgy technologies can also be used for the preparation of ceramic materials. Due to the advantages of powder metallurgy technology, it has become the key to solve the problems of new materials and plays a pivotal role in the development of new materials.
Application of powder metallurgy:
1. The powder metallurgy method has similarities with the production of ceramics. Therefore, a series of new powder metallurgy technologies can also be used for the preparation of ceramic materials.
2. It can easily realize various types of composites and give full play to the characteristics of each component material. It is a low-cost production technology for high-performance metal-based and ceramic composite materials.
3. It can produce materials and products with special structures and properties that cannot be produced by ordinary smelting methods, such as new porous biological materials, porous separation membrane materials, high-performance structural ceramic abrasives and functional ceramic materials, etc.
4. The main use of powder metallurgy lies in various micro motors (motors), IT industries such as mobile phones, projectors, laser printers, DVDs, game consoles PS2, X-BOX, automotive electronics, etc.
Forming technology of powder metallurgy processing:
1. Press molding technology (PM)
Powder metallurgy compression molding technology (PM) is known as a new molding technology that solves high-tech and new materials. The products produced by compression molding have the advantages of high performance, high precision, low cost, and mass production. MIM/PM is the current powder Two forming technologies that are focused on research and development in the metallurgical industry. It is the most widely used one in practical industrial applications. Cold closed steel mold pressing, cold isostatic pressing, hot isostatic pressing, and warm pressing all belong to pressing forming. However, because it can only be pressed in both directions up and down, some complex structural parts cannot be produced, or can only be made into blanks.
2. Injection molding technology (MIM)
Powder metallurgy injection process (MIM) is a new type of powder metallurgy near net shape forming technology formed by introducing modern plastic injection forming technology into the field of powder metallurgy. It breaks through the limitations of traditional molding technology, not only can form complex parts in large quantities and with high efficiency, but also has less processing technology, no cutting or less cutting, higher product performance, and easy molding. It has become a modern manufacturing of high-precision precision parts. Highlight molding technology. It not only inherits the advantages of traditional powder metallurgy and plastic injection molding, but also breaks through the limitations of traditional metal powder compression molding on the shape of parts. It can quickly manufacture parts that are small in size and complex in shape, which cannot be processed or are difficult to process by traditional methods.
Jiangsu High Industry on the research and development and production of high-performance polyurethane isostatic pressing molds. Through in-depth cooperation with many isostatic pressing equipment manufacturers and in-depth study of the industry, the developed isostatic pressing polyurethane mold series products have the characteristics of long service life, high precision, small deformation, easy demoulding, etc., and are widely used in ceramics, etc. Static pressing mould, cemented carbide isostatic pressing mould, rare earth permanent magnet material isostatic pressing mould, graphite isostatic pressing mould, etc.
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