Powder metallurgy is a kind of " green " Sustainable "manufacturing technology
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   At present, powder metallurgy has been recognized by the industry as a green, sustainable manufacturing technology. In this regard, the researchers introduced the continuous functions of powder metallurgy, material sustainability, energy sustainability, equipment sustainability, environmental sustainability, sustainable employment, and sustainable value advantages.
For example, in terms of continuous function, the final forming ability and material utilization of powder metallurgy are high, and the total energy consumption can be minimized. Compared with the traditional process (thermal processing + cold working) casting or forging + cutting, the powder metallurgy process requires only a few processes to manufacture the same part, that is, it can complete more complicated and complicated processes.
In terms of material sustainability, the final forming ability of powder metallurgy is its main advantage. For example, in the case of forming a toothed part, up to 40% of the material in the conventional cutting process becomes chips, and in the powder for powder metallurgy, 85% is produced from recycled materials. In the production process of powder metallurgy parts, the waste loss of each process is generally 3% or less, and the material utilization rate can reach 95% . Welcome to the company's official website http://
In terms of energy sustainability, the general traditional manufacturing process requires several heating and reheating processes to form the final shape. When the steel powder or iron powder is produced by the atomization method, only the scrap material needs to be smelted once, all other heats. The processing operations are carried out at temperatures below the melting point, which not only saves energy, but also produces the desired material properties and mechanical properties for the final shape and formation. Comparison of material utilization rates in metal forming processes found that the energy required to make powder metallurgy parts was 44% of forged - cut parts .
In terms of environmental sustainability, due to the final forming ability of powder metallurgy , in general, finished parts are produced after sintering, and packaging and delivery can be carried out. In most cases, the cutting oil used in the processing of powder metallurgical products is negligible, and the toxic pollutants released by sources such as cooling water are also rare. Compared with other manufacturing processes, the powder metallurgy parts industry has little harm to the environment.
At present, powder metallurgy parts are an important basic part of the automotive industry. According to the researchers, according to incomplete statistics, at least 12 major powder metallurgy parts manufacturers such as Sumitomo Electric, Hitachi, Mitsubishi, and Baolai have established wholly-owned or joint ventures in China; Taiwan's main powder metallurgy parts production plants, such as More than 12 companies including Qingzhi and Sanlin have also established production bases in Dongguan, Wuxi and Suzhou.
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