Causes of abrasion and damage of hammer head of sand machine
As the core part of the sand machine - hammer, the main function of the hammer of the sand machine is to crush materials when rotating at a high speed. It is an indispensable structure in the sand machine and is also a wear-resistant part that is easy to be worn. The quality of the hammer affects the efficiency of the whole production line. Therefore, it is necessary to find out the causes of damage to the hammer of the sand machine and the repair methods to avoid more serious losses.
The abrasion resistance of the hammer has always been a concern of the sand machine manufacturers and users. SMMVIK, as a good manufacturer of sand machine, through repeated attempts, found that if high manganese steel, high chromium, tungsten titanium alloy and other metals are used as the manufacturing materials of the hammer head of the sand machine, composite materials are used, and the hammer handle and hammer end are separately cast, the abrasion resistance of the hammer head is greatly improved, the service life of the hammer head can be extended, and the overall level of the sand machine production line is also improved.
What are the causes of abrasion of the hammer head of the sand and gravel machine?
1. In terms of the manufacturing process of the hammer, the main reason for the fracture of the hammer is that there are different degrees of defects in its interior or surface, especially for the hammers with large thickness. Therefore, a reasonable casting process and heat treatment process should be used, which is an effective method to solve the problem that the hammer is prone to fracture in the early use.
2. The physical properties of minerals refer to the abrasiveness, soil content, moisture, viscoplasticity, compressive strength, etc. of metals, as well as the hardness of crushed materials. The materials used to make hammers should be in direct proportion to the hardness of materials. Hammers made of different materials should be used for materials with different physical properties, which helps to extend the life of hammers. Therefore, when using the sand machine equipment, it is necessary to select the hammer with the appropriate material according to the goodness of the material.
3. The power and speed of the rotor in the sand machine. Different sand making equipment has different production capacity, because they have different technical parameters, which also affect the wear resistance of hammers.
This paper analyzes the root cause of the easy damage of the hammer of the sand and stone machine, and we should try to avoid these problems in the actual production process. Regularly carry out good maintenance for the sand machine. In addition to the hammers to be selected, we should also pay attention to the correct operation of the sand machine, and strengthen the maintenance of the hammer of the sand machine.