I believe everyone knows that the use of powder metallurgy technology can directly produce porous, semi-dense or fully dense materials and products, such as oil-bearing bearings, gears, cams, guide rods, tools, etc. It is a rare cutting process.
Powder metallurgy technology not only has the advantages of less conventional powder metallurgy processes, no cutting or less cutting, and high economic benefits, but also overcomes the shortcomings of traditional powder metallurgy products, uneven materials, low mechanical properties, thin walls, and complex structures. Especially suitable for mass production of small, complex and powder metallurgy parts with special requirements.
So do you know what the production process of powder metallurgy is?
The specific production process of powder metallurgy technology:
1. The current powdering methods can be roughly divided into two types: mechanical methods and physical and chemical methods. However, the mechanical method can be divided into: mechanical crushing and atomization; the physical learning method can be divided into: reduction method, atomization method and electrolysis method.
2. Powder metallurgy is formed into compacts under certain conditions. The purpose of forming is to produce compacts of the required shape and size. The molding method is divided into pressure molding and pressureless molding.
3. Sintering is a very important step in the powder metallurgy process. Sintering is divided into unit system sintering and multiple system sintering. The solid-phase sintering of the unit system and the multi-component system has a low melting temperature; in addition, there are special sintering processes such as loose sintering, immersion method, and hot pressing method.
4. The processing of sintered products can be done in various ways according to requirements. Forging can also be applied to the processing of powder metallurgy materials after sintering.