Factors that affect the life of concrete saw blades

Because in the actual work process diamond for cutting speed will be affected by different conditions, so the quality of concrete blade and nature will be subject to certain restrictions, from the concrete saw blade life and saw blade efficiency can be seen, should be based on different materials to choose the speed of the saw blade. What are the specific factors that affect the life of concrete saw blades?

Here is the content list:

l Diamond particle size

l Diamond segment concentration

l The hardness of the cutting head bonding agent

l Force effect

Diamond particle size

Commonly used diamond grain size in 30/35 ~ 60/80 range. The harder the rock, should be selected with finer particle size. Because in the same pressure conditions, the finer the diamond the sharper, conducive to cutting into the hard rock. In addition, the general large diameter concrete diamond blade requires sawing efficiency, should be selected with coarser particle sizes, such as 30/40, 40/50. small diameter concrete saw blade sawing efficiency is low, requires rock sawing section smooth, should be selected with finer particle size, such as 50/60, 60/80.

Diamond segment concentration

The so-called diamond concentration refers to the diamond in the working layer of the tire in the distribution of density (that is, the weight of the diamond contained in the unit area). "Specification" stipulates that each cubic centimeter of working plastron contains 4.4 carats of diamond, its concentration is 100%, containing 3.3 carats of diamond, its concentration is 75%. Volume concentration indicates how much the volume of a diamond is in the lump and provides that when the volume of diamond accounts for 1/4 of the total volume of the concentration is 100%. Increasing the diamond concentration can be expected to extend the life of the concrete diamond blade because increasing the concentration that reduces the average cutting force by each grain of the diamond. But increasing the depth is bound to increase the cost of the concrete saw blade, thus there is a most economical concentration, and the concentration with the vise-cut rate increases and increases.

The hardness of the cutting segment bonding agent

Generally speaking, the higher the hardness of the bonding agent, the stronger the concrete blade for skill saw's resistance to wear. Therefore, when sawing abrasive rocks, the bond hardness should be high; when sawing soft material rocks, the bond hardness should be low; when sawing abrasive and hard rocks, the bond hardness should be moderate.

Force effect

In the sawing process, the concrete blade for skill saw to be an axial force and the role of tangential force. As in the circumferential direction and radial force, making the concrete saw blade in the axial direction is wavy, in the radial direction is disc-shaped. These two kinds of deformation will cause the rock cutting surface to be not straight, stone waste more, sawing when the noise is large, vibration intensified, resulting in diamond caking early breakage, concrete saw blade life reduced.

QuanZhou Sang Diamond Tools Co., Ltd reminds you that all the above factors will affect the life of concrete saw blades.