What are the specific definitions of strength and shot blasting in shot blasting machines?
The concrete definition of strength and shot blasting in shot blasting machine is: strength: in mechanics, the ability of material to resist damage under external force, such as resistance to deformation or fracture, is called strength. Moreover, this performance is one of the basic requirements which must be achieved and satisfied by mechanical parts. Shot blasting: shot blasting treatment is a kind of surface strengthening technology widely used in shot blasting machine. Its advantages are simple equipment, convenient operation and no restrictions on the shape and position of workpiece. The purpose of its application is to improve the mechanical strength, wear resistance, corrosion resistance and fatigue resistance of the parts, and to eliminate the residual stress in the parts.
What factors will affect the shot blasting strength?
There are some factors affecting the mechanical strength of shot blasting: the size of shot blasting: generally, the larger the shot blasting, the greater the impact kinetic energy and the greater the shot blasting intensity, but the coverage rate of shot blasting will decrease. Therefore, while the shot blasting strength can be guaranteed, the smaller shot blasting can be chosen as far as possible.
However, it is necessary to see whether the shape of the parts is restricted or not. Shot peening hardness: if the shot blasting hardness is higher than the part hardness, the hardness value will not affect the shot blasting strength, on the contrary, the shot blasting hardness is lower than the part hardness, and the shot blasting hardness will reduce the shot blasting strength. Shot blasting speed: increasing shot blasting speed will increase shot blasting strength, but at the same time, it is possible to increase the amount of shot blasting damage. Therefore, we should find a balance between the two to have the appropriate shot blasting speed and good shot blasting effect.
In shot blasting machine, is the blade easily damaged?
In shot blasting machine, blades are easy to be damaged and also an important part. Therefore, it is necessary to pay attention to and take seriously the vane maintenance work to ensure the normal use of shot blasting machine and have a good use effect. In the specific maintenance, is to use correctly and standardized, and in the blade materials, should use high wear resistant materials, so as to ensure the service life of the blade.
When the shot blasting machine is used as a key component of the shot blasting machine, the quality and service life of the shot blasting machine blade directly depend on the blade. Because the blade is in a high-speed rotating impeller when it is working, it must withstand the wear of steel shot abrasives and the erosion of high-speed shot peening flow. In this wear situation, whether the blade works well depends on the material of the blade. After high chromium wear-resistant cast iron is applied to the blade of the shot blasting machine, the average service life of the blade can reach more than 600 hours. Cooling the surface of the blade with cold iron not only realizes the sequential solidification of the casting, but also produces a dense or even fine grain structure on the surface of the blade. In addition, a reasonable heat treatment process can obviously play the total function of the blade, so that the blade can withstand the repeated impact of steel grit for a long time, show good wear resistance and long service life, and have broad application prospects.