Definition of powder metallurgy and description of materials and processes

Definition of powder metallurgy and description of materials and processes

The definition of powder metallurgy and the description of materials and processes are the knowledge we all talk about today. The development of the times makes many industries inseparable from powder metallurgy. Powder metallurgy technology can produce high-quality and precise parts. Let's take a look.

1： What is powder metallurgy technology?

Powder metallurgy is a process technology for manufacturing metal materials, composites and various types of products by forming and sintering metal and using metal powder (or mixture of metal powder and non-metallic powder) as raw materials. Powder metallurgy is an advanced technology for manufacturing parts with high efficiency, high quality, precision, less pollution and energy saving, which can realize less cutting and no cutting of workpiece.

powder metallurgy

2： What are the high performance materials of powder metallurgy?

At present, powder metallurgy high-performance materials include cemented carbide, antifriction materials, structural materials, friction materials, refractory metal materials, filter materials, cermets, etc. The performance of these advanced materials has greatly exceeded the materials produced by traditional technologies, providing the necessary material basis for the development of society.

3： Process flow of powder metallurgy

1: Preparation of raw powder

The existing milling methods can be divided into mechanical method and physical-chemical method, among which reduction method, atomization method and electrolysis method are the most widely used.

2: The powder is shaped into the desired shape

The purpose of forming is to produce a compact with a certain shape and size, and make it have a certain strength and density. The forming methods are basically divided into pressure forming and non-pressure forming. Compression molding is the most widely used in compression molding.

3: Briquette sintering

Sintering is a key process in powder metallurgy process. The formed compacts can obtain the required final physical and mechanical properties through sintering.

4: Subsequent processing of products

The treatment after sintering can be carried out in various ways according to different product requirements, such as finishing, oil immersion, machining, heat treatment and electroplating. In addition, in recent years, some new processes, such as rolling and forging, have also been applied to the processing of sintered powder metallurgy materials, and have achieved better results.

The definition of powder metallurgy and the description of materials and processes have been told to you. If you need to know about powder metallurgy, you can come to Zhongwei Precision Consulting to find out. We have professional personnel to answer you.