Powder metallurgy is a process technology that uses metal powder (or a mixture of metal and non-metal powder) as raw material to manufacture metal materials, composite materials and various types of products through forming and sintering. Powder metallurgy has similarities with the production of ceramics, so 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 solving new material problems and plays a crucial role in the development of new materials.
Powder metallurgy mainly uses metal powder as raw material and processes it into the required shape through a certain process. This processing process is very similar to the production of ceramics, so a series of powder metallurgy technologies can also be used for the preparation and production of ceramic materials. This article will specifically introduce the relevant knowledge of powder metallurgy technology and understand the advantages and development of powder metallurgy technology.
Special materials can be processed. The method of material powder metallurgy can produce difficult-to-melt metals and compounds, pseudo-alloys, and porous materials.
Save metal and reduce costs. Because powder metallurgy can be pressed into the final size of the blank and does not require mechanical processing. The loss of metal in the production of this method is only 1%-5%, while general processing will consume 80% of the metal.
Production of high-purity materials. The powder metallurgy process does not melt the material during the material production process, so there will be no impurities brought in by other substances, and the sintering is carried out in a vacuum and reducing atmosphere, which is not afraid of oxidation and will not pollute the material. Therefore, the purity of the product is relatively high.
Accuracy of material allocation. Powder injection metallurgy can ensure the accuracy and uniformity of material composition during ratioing.
Mass production reduces costs. Powder metallurgy is suitable for the production of products with a large number of the same shape, such as gears and other expensive products, which can greatly reduce production costs.
High-quality structural parts: powder metallurgy is representative of iron-based alloys, which will develop into large-volume precision products and high-quality structural parts.
High-performance alloys: Powder metallurgy can manufacture high-performance alloys with uniform microstructure and completely dense structures that are difficult to process.
Special mixed-phase alloys: Powder metallurgy uses reinforcement to make special alloys with mixed-phase compositions.
Composite parts: Process unique and non-conventional composite parts in form and composition.