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News

How to extend the life of diamond saw blades?

  • Author:Dora Zhang
  • Source:www.boreway.com
  • Release on:2020-08-31

Diamond saw blades have a wide range of uses. They are one of the commonly used diamond tools in construction. The boreway saw blades at wholesale prices can cut efficiently without chipping, cutting marble, cuttinggranite (https://www.diamondtools.top/products/Granite-Cutting-Saw-Blades.html), concrete, quartz stone, ceramic tiles and other materials, cutting stone slabs, Blocks. The saw blade will wear out after using it for a long time. How can we reduce the wear and extend its life?


1. Cutting parameters


1. Saw blade linear speed: In terms of the best saw blade service life and sawing efficiency, the saw blade linear speed should be selected according to the properties of different stones. When sawing granite, the linear speed of the saw blade can be selected in the range of 25m35m/s.

2. Cutting 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 sawing diamond can be selected between 1mm and 10mm. Generally, when large-diameter saw blades are used to cut granite blocks, the cutting depth can be controlled between 1mm and 2mm, and the feed speed should be reduced at the same time. When the linear speed of the diamond circular saw blade is large, a large cutting depth should be selected.

3. Feed speed: The feed speed is the feed speed of the sawn stone. Its size affects the sawing rate, the force of the saw blade and the heat dissipation of the sawing area. Its value should be selected according to the nature of the stone being sawn. Generally speaking, when sawing soft stone, such as marble, the feed speed can be appropriately increased. If the feed speed is too low, it is more conducive to increase the sawing rate. For sawing fine-grained, relatively homogeneous granite, the feed speed can be appropriately increased. If the feed speed is too low, the diamond blade will be easily ground.


2. Other influencing factors


1. Diamond saw blade particle size: the commonly used diamond particle 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 conducive to cutting into hard rocks.


2. Tip concentration: 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 the concentration is 100% when the volume of diamond occupies 1/4 of the total volume. Increasing the diamond concentration is expected to prolong the life of the saw blade, because increasing the concentration reduces the average cutting force experienced by each diamond. But increasing the depth will inevitably increase the cost of the saw blade, so there is a most economical concentration, and the concentration increases with the increase of the cutting rate.


3. The hardness of the binder of the cutter head: Generally speaking, the higher the hardness of the binder, the stronger its wear resistance. Therefore, when sawing abrasive rocks, the bond hardness should be high; when sawing soft rocks, the bond hardness should be low; when sawing abrasive and hard rocks, the bond hardness should be moderate .


4. Force effect, temperature effect and wear damage: during the cutting of stone, diamond saw blades will be subjected to alternating loads such as centrifugal force, sawing force, and sawing heat.