Advantages and disadvantages of powder metallurgy technology,

Advantages and disadvantages of powder metallurgy technology,

With the progress of science and technology, powder metallurgy technology has been widely used. Powder metallurgy technology is a low cost technology to produce high-performance metal matrix and ceramic composites, which can easily realize multiple types of composites and give full play to the respective characteristics of each component material. Then what are the advantages and disadvantages of powder metallurgy technology? Here is a brief introduction of Zhongwei Precision:

Powder metallurgy technology

Advantages of powder metallurgy technology:

1. The vast majority of refractory metals and their compounds, pseudoalloys, and porous materials can only be manufactured by powder metallurgy.

2. As the powder metallurgy method can be pressed into the final size of the compact without or with little need for subsequent machining, it can greatly save metal and reduce product costs. When products are made by powder metallurgy, the metal loss is only 1-5%, while when products are made by general casting, the metal loss may reach 80%.

3. As the powder metallurgy process does not melt the material in the material production process, it is not afraid of mixing impurities brought by crucibles and deoxidizers. Sintering is generally carried out in vacuum and reducing atmosphere, and it is not afraid of oxidation and will not pollute the material, so it is possible to produce high-purity materials.

4. The powder metallurgy method can ensure the correctness and uniformity of the material composition ratio.

5. Powder metallurgy is suitable for the production of many products with the same shape, especially the products with high processing costs such as gears. The production cost can be greatly reduced by using the powder metallurgy method.

Disadvantages of powder metallurgy technology:

1. There are always pores inside the product; The strength of ordinary powder metallurgy products is lower than that of corresponding forgings or castings (about 20%~30% lower).

2. Because the fluidity of the powder in the forming process is far less than that of the liquid metal, there are certain restrictions on the structure and shape of the product.

3. The pressure required for pressing forming is high, so the products are limited by the capacity of pressing equipment; Die cost is high, generally only applicable to batch or mass production.

The above is the analysis of the advantages and disadvantages of powder metallurgy technology. Powder metallurgy technology has become one of the most widely used technologies in industrial production, and I believe it will be more widely developed in the future.