The quality of the diamond saw blade is the main reason for the impact on life, but the method of use and post-maintenance are also important, affecting the life of the diamond saw blade, so how to make your diamond saw blade longevity?
1. Saw blade line speed: From the best saw blade life and sawing efficiency, the linear speed of the saw blade should be selected according to the nature of different stones. When sawing granite, the linear speed of the saw blade can be selected from 25m to 35m/s.
2. Sawing depth: Generally speaking, when the linear speed of the diamond circular saw blade is high, a small cutting depth should be selected. From the current technology, the depth of the sawing diamond can be selected between 1 mm and 10 mm. When sawing granite blocks with large-diameter saw blades, the sawing depth can be controlled between 1mm and 2mm, and the feed rate should be reduced at the same time. When the linear speed of the diamond circular saw blade is large, a large depth of cut should be selected.
3. Feeding speed: The feeding speed is the feeding speed of the sawed stone. Its size affects the sawing rate, the force on the saw blade, and the heat dissipation in the sawing area. Its value should be selected according to the nature of the stone being sawed. Generally speaking, sawing softer stones, such as marble, can increase the feed speed appropriately. If the feed speed is too low, it is more conducive to improving the sawing rate. The sawing of the fine-grained, relatively homogeneous granite can increase the feed speed appropriately. If the feed speed is too low, the diamond blade is easily smoothed.
Second, other influencing factors：
1. Diamond particle size: The commonly used diamond particle size is in the range of 30/35 to 60/80. The harder the rock is, the finer particle size should be chosen. Because under the same pressure conditions, the diamond is finer and sharper, which is good for cutting into hard rock.
2. Tool head concentration: The so-called diamond concentration refers to the density of diamond distributed in the working layer carcass (ie the weight of diamond contained in a unit area). The “Specifications” stipulate that the concentration of 4.4 carats of diamond per cubic centimeter of working carcass is 100%, and the concentration of diamond containing 3.3 carats is 75%. The volume concentration indicates the volume of diamond in the agglomerate, and specifies that the concentration of the diamond is 100% when it accounts for 1/4 of the total volume. Increasing the diamond concentration is expected to extend the life of the saw blade because increasing the concentration reduces the average cutting force per diamond. However, increasing the depth necessarily increases the cost of the saw blade, so there is a most economical concentration, and this concentration increases as the cutting rate increases.
3. Hardness of the bonding agent: Generally speaking, the higher the hardness of the bonding agent, the stronger the anti-wear ability. Therefore, when sawing a rock with high abrasiveness, the hardness of the bonding agent should be high; when sawing a soft rock, the hardness of the bonding agent should be low; when sawing a hard and hard rock, the hardness of the bonding agent should be moderate.
4, force effect, temperature effect and wear and tear: diamond circular saw blade in the process of cutting stone, will be affected by centrifugal force, sawing force, sawing heat and other alternating loads.
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