What are the advantages and disadvantages of powder metallurgy technology?

What are the advantages and disadvantages of powder metallurgy technology?

Powder metallurgy is a new type of net near-molding technology, which uses melting, heating, injection and pressing of metal powder to carry out the required mold molding. For some special materials such as refractory metals, refractory metals, high alloy and so on. What are its technical advantages and disadvantages? Let's get to know.

Advantages of powder metallurgy technology:

1. Most refractory metals and their compounds, pseudoalloys and porous materials can only be manufactured by powder metallurgy.

2. Because the powder metallurgy method can be pressed into a compact of size without or little need for subsequent mechanical processing, it can greatly save metal and reduce product costs. When using powder metallurgy method to produce products, the metal loss is only 1-5%, while when using general melting and casting method to produce products, the metal loss may reach 80%.

3. Since 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, etc., while sintering is generally carried out in vacuum and reducing atmosphere, and it is not afraid of oxidation and will not cause any pollution to 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 producing a large number of products with the same shape, especially gear and other products with high processing costs. Manufacturing by powder metallurgy can greatly reduce production costs.

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.

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 and forming is high, so the products are limited by the capacity of pressing equipment; The stamping cost is high, and it is generally only suitable for batch or mass production.

To sum up, it is an introduction to the advantages and disadvantages of powder metallurgy technology. I hope that this article can help you understand the advantages and disadvantages of powder metallurgy. If you want to know more about powder metallurgy, please pay attention to the official website of zhongwei Precision.