Three important marks and development trend of powder metallurgy technology

The application of powder metallurgy technology in ancient times, the first method of making iron is essentially used in powder metallurgy. And the development of modern powder metallurgy technology, there are three important signs:

1, to overcome the difficulties produced in the process of refractory metal casting, in 1923 powder metallurgy hard alloy was hailed as a revolution in machining.

2, thirty years, the successful preparation of porous oil bearing; and then the development of powder metallurgy iron based machinery parts, and give full play to the advantages of powder metallurgy less cutting and cutting.

3, in the 1940s, metal ceramic, dispersion strengthened materials such as, from the late 1960s to early 1970s, high-speed steel powder, Powder Superalloy have appeared, and the powder metallurgy forging and hot pressing technology gradually large-scale manufacturing parts with complicated shape and high strength.

Development trend of powder metallurgy technology:

1, representative of the iron base alloy, will be to the large volume of precision products, high quality structural components development.

2. High performance alloy with uniform microstructure and difficult to process.

3, with enhanced densification process to produce a general composition containing a mixture of special alloy.

4, the manufacture of non - uniform materials, amorphous, microcrystalline or metastable alloy.

5, the processing of unique and non general form or composition of the composite parts.