1. Liquid phase sintering

If there are two or more components in the powder compact, the sintering may be performed above the melting point of a certain component, so a small amount of liquid phase appears in the powder compact during sintering.

2. Pressure sintering

During sintering, pressure is applied to the powder body to promote its densification process. Pressure sintering is sometimes synonymous with hot pressing, which is a process that combines the forming and sintering of powders to directly obtain products.

3. Activation sintering

In the sintering process, some physical or chemical measures are adopted to greatly reduce the sintering temperature and shorten the sintering time, while the performance of the sintered body is improved and improved.

4. EDM sintering

When the powder body is formed and pressed, direct current and pulse electricity are applied to generate an arc between the powder particles for sintering; during sintering, pressure is gradually applied to the workpiece, and the two processes of forming and sintering are combined.

5. Powder solid phase sintering

A powder sintering method in which loose powder or compacts do not melt during the sintering process. Powder solid-phase sintering can be divided into two types: unit-system solid-phase sintering and multi-system solid-phase sintering according to the number of components.