The hammer head of a crusher is an important component to ensure the normal production of ore materials. It not only affects the output of sand and gravel aggregates, but also affects the quality of finished products. Many users are deeply troubled by the severe wear and tear of the hammer head, so what should be done? Here, the rental manufacturer of the cold regeneration machine will provide a detailed explanation for everyone.
Reason 1: Hammer head material
The hardness and toughness of the hammer head are one of the reasons that affect the wear of the hammer head. The higher the hardness, the greater the wear resistance of the hammer, but as the hardness increases, the impact toughness of the hammer will decrease. Therefore, the key to improving the wear resistance of hammer heads is to find materials that combine hardness and good toughness.
Processing method: Choose a hammer head made of high wear-resistant materials, such as high manganese steel, high chromium cast iron, low-carbon alloy steel, etc.
Reason 2: Production quality of hammer head
The manufacturing process of the hammer head also determines the key factor that makes it difficult to wear. Obviously, if defects are caused on the surface or inside of the hammer head during the production process, such as shrinkage, cracks, transgranular, etc., it will not only cause easy wear of the hammer head, but also cause the hammer head to fracture.
Treatment method: Mature hammer production technology should be adopted, and reasonable casting and heat treatment processes should be developed. When manufacturing high chromium cast iron hammerheads, vertical casting and reasonable use of external cooling iron are used, while strictly controlling temperature. This way, the hammerheads produced have good solidification sequence and shrinkage conditions, dense internal structure, and reduces the phenomenon of coarse grains.
Reason 3: Hammer head structure
The structure and shape of a hammer also have an impact on wear, and the heat treatment performance and internal structure of hammers with different structures and shapes vary greatly, thereby affecting wear resistance. A hammer with a special size and thickness has a greater impact. In addition, the thicker the hammer head, the harder it is to harden and the poorer its wear resistance.
Processing method: Optimize the structure of the hammer head.
Reason 4: Technical parameters of the crusher
The technical parameters that affect the wear resistance of the crusher hammer head include the power and speed of the rotor. These two parameters reflect the linear speed and impact force of the hammer head, and are related to the production capacity of the crusher and the degree of impact hardening of the hammer head. If the impact hardening degree is good, the service life will be extended. When the rotational speed of the rotor is too low, it will lead to low production capacity, poor impact hardening of the hammer head, and poor wear resistance; When the rotor speed is too high, although the hammer head achieves good impact hardening and improves equipment production capacity, it also causes strong wear on the hammer head and lining plate, which is not conducive to the lifespan of the hammer head and also increases power consumption.
Processing method: Optimize technical parameters, control the power and speed of the rotor, neither too high nor too low.
To solve the problem of severe wear and tear on the hammer head of the crusher, it is necessary to first understand the reasons for the severe wear and tear on the hammer head of the crusher and apply the appropriate medicine to the case. The main reasons for severe wear and tear on the hammer head of a crusher include the material, manufacturing quality, and structural design of the hammer head, the technical design of the crusher, the feeding situation, and the gaps in various parts of the structure. If you have any further questions, please come to our website http://www.4210608.com Consult!
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