Metal injection molding (MIM) technology is a set of plastic molding process, polymer chemistry, powder metallurgy process and metal materials science and other multidisciplinary through and cross products, the use of molds can be injection molding blanks and sintering through the rapid manufacture of high-density, high-precision, three-dimensional complex shape of the structure of the parts, can be quickly and accurately materialized into the design of the idea of a certain structure, functional characteristics of the products, and can directly Batch production of parts, is a new change in the manufacturing technology industry.
Traditional CNC machining has recently improved its machining capacity and efficiency by virtue of the prevalence of automation, and has made great progress in terms of control accuracy, but its basic machining process has not changed, or (turning, planing, milling, drilling, etc.) to complete the shape of the incoming parts in the way. However, CNC machining is superior to other machining in terms of control accuracy. On the contrary, MIM can effectively utilize the material without restriction, for the manufacture of small, difficult shaped precision parts, MIM process compared to machining, its lower cost and high efficiency, with the ability to subvert the transmission processing.
Metal powder injection molding (MIM) of a very wide range of materials, in principle, any high-temperature casting of powder materials can be caused by the MIM process parts. In addition, MIM can also be used to create any combination of alloy materials by researching material formulations according to user requirements and molding composite materials into parts. The application fields of injection molding products have spread to all fields of the national economy and have a broad market prospect.
Powder Metallurgy and CNC Machining
Powder metallurgy has unique chemical compositions and mechanical and physical properties that cannot be obtained by traditional casting methods. Porous, semi-dense or fully dense materials and products such as oil-bearing bearings, gears, cams, guide rods, cutting tools, etc. can be produced directly by powder metallurgy technology, which is a rare cutting process.
1, powder metallurgy technology can minimize the segregation of alloy composition and eliminate coarse and uneven casting organization. It plays an important role in high-performance rare-earth permanent magnetic materials, rare-earth hydrogen storage materials, rare-earth luminescent materials, rare-earth catalysts, high-temperature superconducting materials, new types of metal materials (e.g., aluminum-lithium alloys, heat-resistant aluminum alloys, super alloys, powder corrosion-resistant stainless steels, powder high-speed steels, intermetallic compounds, and high-temperature structural materials, etc.). .
2, can prepare a series of high-performance non-equilibrium materials such as amorphous, microcrystalline, quasi-crystalline, nanocrystalline and supersaturated solid solution. These materials have excellent electrical, magnetic, optical and mechanical properties.
3、Various types of composite materials can be easily realized, giving full play to the respective characteristics of each constituent material.
4、Materials and products with special structure and properties that cannot be produced by ordinary smelting methods can be produced, such as new porous biomaterials, porous separation membrane materials, high-performance structural ceramic abrasives, functional ceramic materials and so on.
5、It can realize near-net molding and automated mass production, effectively reducing the resources and energy consumption of production.
6、It can make full use of ore, tailings, steelmaking sludge, rolling scale, and recycled scrap metal as raw materials. It is a new technology that can effectively carry out material regeneration and comprehensive utilization.
