Metal powder commonly used in diamond tools and its characteristics

According to the different uses, varieties and production processes of diamond tools, different powders are needed, such as metal, non-metal, alloy, compound, etc. Let's introduce the metal powders commonly used in diamond tools and their characteristics in detail.
1. Copper powder: electrolytic copper powder has good formability and is widely used for sintering after cold pressing forming.
2. Iron powder: There are reduced iron powder, electrolytic iron powder and carbonyl iron powder. As a binder material, iron powder has advantages: low price and good wettability with diamond; Good compatibility with skeleton material.
3, cobalt powder: irregular spongy, binder material, advantages: formability and good sinter; Increase the bending strength of the tire body; And diamond adhesion, good wettability.
4, tin powder: particles are drops, grayish white powder, easy oxidation, yellow after oxidation, atomization method. The function is: improve the sinter ability of the carcass (reduce the melting point); It is easy to form intermetallic compounds, which can improve the wear and deformation properties.
5, tungsten carbide: black, no mechanical inclusions, porous sponge, reduction method. Tungsten and tungsten carbide are mainly added into the matrix as skeleton materials to improve the wear resistance of the matrix. Too high content is easy to increase the brittleness of the matrix.