What are the characteristics of the development of modern powder metallurgy technology?

What are the characteristics of the development of modern powder metallurgy technology?

With the continuous improvement and development of powder metallurgy technology, what are the characteristics of the development of modern powder metallurgy technology? Qinhuangdao Zhongwei Precision Powder Metallurgy Factory will share with you:

1： New technologies such as superfine are emerging

Powder preparation technology, rapid setting, mechanical alloying, spraying, powder hot isostatic pressing, powder rolling, powder extrusion, powder hot pressing, rapid omnidirectional pressing, high-speed pressing, electromagnetic forming, super solid phase sintering, selective sintering, spark plasma sintering, microwave sintering, power plant activation sintering, self propagating sintering and powder injection molding technology.

The application of new technologies and processes has produced many new materials with powder metallurgy characteristics. Such as bulk nano materials, powder superalloys, powder high-speed steel, rapidly solidified magnesium alloys, rapidly solidified titanium alloys and special ceramics.

powder metallurgy

2： Powder metallurgy has become the most important preparation method of non-equilibrium materials.

These new technologies can effectively improve the performance of traditional materials and prepare new materials. Extreme conditions can be used to prepare materials with special properties, such as ultra-fine powders condensed by evaporation, amorphous, quasicrystalline and microcrystalline materials made by rapid condensation technology, nanocrystalline materials made by mechanical alloying, special molding and special processes. The sintering method keeps the metastable phase in the material to prepare the unbalanced material.

3： The direct preparation technology of near net products has developed rapidly

At present, the geometry of P/M parts is becoming more and more complex, and the dimensional accuracy has been continuously improved, which greatly reduces the subsequent processing steps and workload. These great progress can be attributed to the development of modern powder metallurgy technology.

4： Disadvantages of powder metallurgy technology

1: In case of no batch, the size of parts must be considered.

2: The mold cost is relatively high compared with the casting mold.

The development of powder metallurgy technology has played a great role in industrial development, but there are some defects in powder metallurgy technology. If the parts are large, they are not suitable for production by powder metallurgy technology. Or, if the production batch is not large enough, powder metallurgy technology can be used, that is, only open the mold, which is too expensive.