As the metal bond of the saw blade, its mechanical properties must not only ensure the durability of the saw blade, but also ensure that it is sharp. It must have high enough strength, hardness, and sufficient brittleness, so that it can be worn in a timely manner during the sawing process. The diamond has sufficient cutting height. For the binder of the saw blade, its mechanical performance index is different from other ordinary metal materials. It is not that the higher the strength and hardness, the better, but it should be appropriate. Toughness and brittleness are also relatively suitable. For different uses and different types of saw blades, these indicators are different and require their own appropriate ranges. For different uses and different types of saw blades, these indicators are different and require their own appropriate ranges. In the actual production practice, copper-based binders are generally used to process marble and soft granite, WC-based binders are used to process hard granite, and cobalt-based binders are used to process medium hardness stones. From the perspective of raw materials, in order to ensure the mechanical strength of the binder, it is necessary not only to determine the appropriate composition ratio, but also to pay attention to the particle size, surface condition (oxidation degree) of each metal powder, addition form (such as single metal powder, pre-alloyed powder) etc., the particle size should not be too coarse, the main components should be finer than 200 mesh, the additive components should generally be finer than 300 mesh, and a small amount of added elements such as Ti and Cr should be finer. Otherwise, the timely formula is suitable, which will also affect the performance of the binder. The matrix diamond saw blade has the following functions: 1.To disperse and hold the diamond; 2.To expose the diamond to a certain extent to provide matching wear; 3. To prevent the grains from falling off prematurely; 4.To act as a heat sink, the heat generated during work is quickly transmitted; 5.When the diamond is impacted, the matrix bears and disperses the impact and load generated.
