Diamond segment formula powder system

The diamond segment on the diamond saw blade is sintered under high temperature and high pressure after mixing diamond particles and metal powder. The formula powder system of the diamond segment of the diamond saw blade refers to the ratio and variety selection of diamond particles and metal powder.

Generally speaking, diamond particles are the most important component in the diamond segment, because they determine the hardness and wear resistance of the diamond segment. The selection of diamond particles should be carried out according to the application scenario of the saw blade. Generally, diamond particles with regular shape, uniform size, good crystal integrity, and clear grain boundaries should be selected.
The metal powder is the binder used to solidify the diamond particles. The choice of metal powder should match the properties of the diamond particles so that the two can fully bond and form a strong segment material. Commonly used metal powders include cobalt, copper, iron, nickel, etc. Different metal powders will affect the hardness, toughness, wear resistance and other properties of the diamond segment.

Cobalt
Cobalt is a relatively hard metal that is often used as the main binder in diamond segments. After the cobalt interacts with the diamond particles, an organic chemical bond can be formed to fix the diamond particles to each other, enhancing the toughness and impact resistance of the diamond segment. At the same time, cobalt can also enhance the wear resistance and thermal stability of the diamond segment, and improve cutting efficiency and precision.

Copper
Copper is a metal with good electrical conductivity and works well as a binder in diamond segments. Copper is able to form intermetallic compounds with diamond particles, which increases the hardness and wear resistance of the segment. In addition, copper can also improve the thermal conductivity and heat resistance of the diamond segment, reduce the heat generated during cutting, and protect the diamond segment and workpiece.

Iron
Iron is a relatively inexpensive metal, and it is not common to use it as the main binder in diamond segments. However, iron can also form a stronger chemical bond when it interacts with the diamond particles. The addition of iron can increase the hardness and strength of the diamond segment, but its wear resistance is not as good as that of cobalt and copper, and it is not suitable for high-intensity cutting tasks.

Nickel
Nickel is a relatively soft metal, which is mainly used as an auxiliary material for the binder in the diamond segment. The nickel interacts with the diamond particles to form a strengthening metal layer that increases the wear and impact resistance of the segment. Nickel also enhances the thermal stability and corrosion resistance of the segment, making it more durable. However, the amount of nickel added should be appropriate. Too much nickel will reduce the hardness and strength of the diamond segment.

In addition to diamond particles and metal powder, there are other auxiliary materials that can be used to improve the performance of the diamond segment. For example, high-temperature-resistant ceramic powders such as silicon carbide and alumina can improve the thermal stability and thermal fatigue resistance of the diamond segment; while high-hardness powders such as tungsten carbide can improve the hardness and wear resistance of the diamond segment.
In general, the formula powder system of the diamond saw blade should be selected and optimized according to the application scenario of the saw blade. By selecting appropriate diamond particles, metal powder and auxiliary materials, and controlling their ratio and sintering process parameters, a diamond segment with excellent performance can be manufactured to meet different cutting task requirements.