Analysis of four development prospects of iron based powder metallurgy industry
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Combined with the current situation and downstream development prospect of iron-based powder metallurgy technology in China and abroad, the future development direction of iron-based powder metallurgy mainly includes four categories
Further improve the characteristics of powder metallurgy, such as high consistency, high precision and complex shape, so as to serve the upgrading of industrial structure of machinery, automobile, household appliances and other industries. This kind of direction is mainly to reduce the mechanical weight, save energy consumption, reduce emissions and miniaturize and civilize the equipment.
Increase the density of iron-based powder metallurgy, improve the replacement range of powder metallurgy parts for traditional forgings. At present, the density of mainstream based powder metallurgy is 7.2-7.4g/cm3, while Dongmu, the most advanced technology in China, has increased its density to 7.6g/cm3. Under this density, iron-based powder metallurgy has replaced the vast majority of connecting parts and some functional parts such as automobile and machinery. Considering the material saving and environmental protection characteristics of P / m, the downstream space of this kind of iron-based P / M parts can reach 100 billion yuan in theory;
The aim of improving the electromagnetic properties of PM parts is to replace silicon steel and ferrite. Taking the oriented silicon steel as an example, the conductive principle of the silicon steel is to reduce the iron loss by reducing the grain boundary after adding silicon and other elements, especially the oriented silicon steel, which is a single coarse grain in the guiding direction. Compared with the one-dimensional conductive direction of oriented silicon steel, P / M parts can achieve multi-dimensional conductive in any direction, that is to say, a product is a single grain. At present, this kind of technology has achieved breakthroughs in a few enterprises. If it fully meets the industrial requirements, it will be widely used in transformers, motors, new energy vehicles and intelligent control systems including robots;
Further alloying, the goal is lightweight and functional. In the iron-based powder, mixed with aluminum, magnesium and rare earth elements alloy powder, can achieve its ultra-thin, lightweight and other properties, can be widely used in electronic devices and wearable devices and other fields closely related to life.
These four directions basically represent the development direction of iron-based powder parts.

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