Views: 0 Author: Site Editor Publish Time: 2022-05-09 Origin: Site
When the diamond concentration changes from low to high, the sharpness of the diamond saw segment and the sawing efficiency of the diamond saw segment gradually decrease, which will gradually extend the life of the diamond saw segment, but if the concentration is too high, the diamond saw segment will become dull. With low concentrations, the efficiency is improved. Therefore, in the manufacturing process of diamond saw segments, the diamond concentration should be reasonably controlled according to different cutting objects and machines used so that the diamond can be fully utilized during the use process. Next, I will explain the particle size, bit concentration, and hardness of diamond saw segments. Here are some answers.
Here is the content list:
The particle size of the diamond saw segment.
Bit concentration of diamond saw segment.
The bit hardness of the diamond saw segment.
The commonly used diamond grain size is in the range of 30/35 to 60/80. The harder the rock, the finer grain size should be selected. Because under the same pressure conditions, the finer the diamond, the sharper it is, which is beneficial for the diamond saw segment to cut into the hard rock. In addition, generally large-diameter diamond saw segments require high sawing efficiency, and coarser particle size should be selected, such as 30/40, 40/50. Small-diameter diamond saw segments have low cutting efficiency. The rock sawing section is required to be smooth, and a finer grain size should be selected, such as 50/60, 60/80.
The so-called diamond concentration refers to the density of diamonds distributed in the matrix of the working layer (that is, the weight of diamonds per unit area). "Specifications" stipulate that the concentration of diamonds of 4.4 carats per cubic centimeter of the working matrix is 100%, and the concentration of diamonds of 3.3 carats is 75%. The volume concentration indicates the volume of diamond in the agglomerate and stipulates that when the volume of diamond occupies 1/4 of the total volume, the concentration is 100%. Increasing the diamond concentration is expected to extend the life of the diamond saw segment, because increasing the concentration reduces the average cutting force experienced by each diamond. However, increasing the concentration will inevitably increase the cost of the diamond saw segment, so there is a most economical concentration, and the concentration increases as the sawing rate of the diamond saw segment increases.
Generally speaking, the higher the hardness of the bond, the stronger the wear resistance of the diamond saw segment. Therefore, when the diamond saw segment cuts abrasive rocks, the hardness of the bond should be high. When the diamond saw segment cuts soft rock, the bond hardness should be low; when the diamond saw segment cuts the abrasive and hard rock, the bond hardness should be moderate.
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