How can diamond segment be more wear-resistant?

The wear resistance of the segment determines the service life of the diamond segment. The most direct manifestation is that the segment takes longer and the number of squares of the cut stone increases, which reduces the frequency and number of segment replacement and saves the cost of stone processing. , In the world, many rough processing countries have higher requirements for segment life. Therefore, how to increase the wear resistance of the diamond segment while ensuring the sharpness is the direction that many diamond tool manufacturers have been studying.

Wear resistance is mainly manifested in two aspects of hardness and density. First of all, from the perspective of hardness, diamond is a nodule made of a mixture of diamond and metal powder. When a metal material is put into more soft metal, And the metal powder cannot be more closely combined at high temperature, so such a metal carcass is relatively soft. In the process of cutting the stone, the consumption caused by friction will be particularly obvious on the soft carcass, even The metal matrix bond of the diamond is used up before the diamond is completely working, and the diamond will fall off because of the lack of the fixed matrix, which causes the diamond to not be fully utilized, and the life of the segment is naturally shortened.

As for the density, that is, the density of the metal carcass, during the high-temperature sintering process, the segments will form denser segments through physical and chemical reactions. However, if the metal powders in the segment formula are not close together, or appear If the separation is excluded, the density of the segment must be low. When the segment is worn, the material will be quickly consumed due to its fluffy interior.



In addition to the problem of metal bond, the wear resistance of diamond also needs to be exquisite. Synthetic diamonds are divided into good or bad, that is, grades. High grade diamonds have higher hardness and will be very good in the process of cutting stone. On the other hand, diamonds with low grades will have lower hardness. Segments made of such diamonds are fragile and non-abrasion resistant in the process of cutting stone.

Therefore, in order to increase the wear resistance of the diamond segment, we need to improve from the above three aspects:

1: When selecting metal powder, consider the issue of hardness. Try to add metal powder with higher hardness in the formula, or mix metal powder with higher hardness, such as iron, copper, cobalt and other metals. Need to use less soft metal materials, such as zinc, tin, aluminum and other metal materials. Of course, when choosing a harder carcass material, you must consider the abrasiveness of the cutting object, such as cutting softer marble. If the carcass material is too hard, the segment is likely to slip or be ground.

2: The density of the segment is very important. The formulation design should be adjusted according to the cutting object. Too low density is not resistant to consumption, and too high density will lead to waste of materials and is not conducive to cutting edge.

3: The carcass with increased hardness also needs to be matched with better grade diamonds, otherwise the diamond will be consumed quickly, resulting in the situation that the segment does not produce the edge or the edge is easy to grind, thus affecting the use of the segment.



Linxing diamond segments has been developed for nearly 20 years. Currently, for the world-wide stone, different cut stones will be produced according to different diamond segment formulas, helping customers to solve stone cutting problems more efficiently and cost-effectively. Company website: https://www.linxingstone.com.