Views: 0 Author: Site Editor Publish Time: 2021-09-28 Origin: Site
Diamond cutting is a kind of cutting tool, which is widely used in the processing of stone, concrete, prefabricated board, new and old roads, ceramics and other hard and brittle materials. Diamond cutting pieces are mainly composed of two parts, matrix and knife head.
Diamond saw blade segment bit concentration requirements
Hardness requirements of diamond saw blade segments
The effect of diamond saw blade segment
The so-called diamond concentration refers to the density of diamond in the working layer matrix (that is, the weight of diamond per unit area). The Code stipulates that the concentration of diamond per cubic centimeter of the working matrix is 100% for 4.4 carats and 75% for 3.3 carats of diamond. The volume concentration represents the volume of diamond in caking, and the concentration is 100% when the volume of diamond accounts for 1 / 4 of the total volume. The increase of diamond concentration is expected to prolong the life of the saw blade, because the increase of diamond concentration reduces the average cutting force per diamond. However, increasing the concentration will inevitably increase the cost of the saw blade, so there is one of the most economical concentrations, and the concentration increases with the increase of sawing rate.
Generally speaking, the higher the hardness of the binder, the stronger its wear resistance. Therefore, when sawing and grinding rocks, the hardness of the binder should be high; when sawing soft rock, the hardness of the binder should be low; when sawing and grinding rock is large and hard, the hardness of the binder should be moderate.
In the process of cutting stone diamond circular saw blade will be affected by centrifugal force, sawing force, sawing heat and other alternating loads.
The wear and tear of diamond circular saw blade is caused by force effect and temperature effect.
Force effect: in the process of sawing, saw blade should be subjected to axial force and tangential force. Due to the force in the circumferential direction and radial direction, the saw blade is wavy in the axial direction and discoid in the radial direction. These two kinds of deformation will lead to the uneven cutting surface of the rock, the waste of the stone, the noise of sawing and the aggravation of vibration, which will lead to the early breakage of diamond caking and the decrease of saw blade life.
The matrix is the main supporting part of the bonding tool head. The knife head is the part that plays a cutting role in the process of use, and the knife head will continue to consume in use while the matrix will not. The reason why the knife head can cut is because it contains diamond, diamond as the hardest material at present, it friction cutting in the tool head is machined. Diamond particles, on the other hand, are wrapped in the head of the knife by metal