Which material hammer is more popular?

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The hammerhead is an important part of the crusher. The high-quality wear-resistant hammerhead is the basis for guaranteeing the normal operation of the crusher and is also an important guarantee for the production efficiency of the equipment. The life of the hammer depends on the quality of the hammer and also determines the efficiency of the crusher.
In fact, the life of the hammerhead depends not only on the quality of the hammerhead but also on the hardness of the broken material. Crusher manufacturer Yuxiang Machinery recommends that when selecting the hammer head of the crusher, not only the wear resistance of the hammer material should be considered, but also the performance characteristics of the material to be broken.
According to experts, the hammer material of the common crusher in the mining machinery industry mainly includes the following types: high manganese steel, medium manganese steel, high chromium cast iron, and low carbon alloy steel. The cast hammers of these materials have their own characteristics, but also have their own advantages and disadvantages. The following crusher manufacturers Yuxiang machinery to look at their specific circumstances.
Shandong Hammer Crusher Manufacturers 1. High manganese steel is a hammerhead traditional material. It is a typical wear-resistant steel that resists impact wear. It has good toughness and strong work hardening tendency. It shows superior wear resistance under impact conditions. Sex. Under the action of a large impact or contact stress, the surface layer will quickly work hardening, its work hardening index is 5-7 times higher than other materials, and the wear resistance is greatly improved. However, the wear resistance of high-manganese steels only shows its superiority when it has sufficient conditions to form work-hardening. In other cases, if the physical impact force is not enough or the contact stress does not make the surface rapidly work-harden, the wear resistance is very high. difference.

2, there is a material in the manufacture of hammerhead can be said to be welcomed by many mining machinery factory, that is, not to increase the price of the hammer, but also to achieve the ZGMn13 hammer effect of medium manganese steel. The actual service life of medium manganese steel hammers has been improved by more than 50% compared with ZGMn13, and good results have been achieved. When the as-cast manganese steel hammer breaks the albite, its service life is more than 60% higher than ZGMn13. The biggest advantage of the manganese steel hammer in the as-cast state is that it is magnetic, and iron scraps in the ore can be removed by magnetic separation to ensure the sintering quality of ceramic products, while high manganese steels do not have this advantage.

3. High-chromium cast iron is a kind of wear-resistant material with excellent anti-wear properties, but its toughness is low and it is prone to brittle fracture. In order to make the high-chromium cast iron hammer run safely, people have developed a composite hammer on this basis. The high chromium cast will be cast on the head of the high manganese steel or low alloy steel hammer head, or the working part of the hammer head is made of high-chromium cast iron, and the hammer handle part is made of carbon steel. The two are combined to make the head of the hammer have high hardness. , High wear resistance, and hammer handle with high toughness, give full play to the advantages of the two materials and overcome the shortcomings of a single material to meet the performance requirements. According to reports, in the cement industry crushing cement clinker, its service life is more than 2 times higher than that of high manganese steel hammers.

4, high chromium cast iron is mainly composed of chromium, molybdenum and other elements of the alloy structural steel, high hardness, good toughness, in line with the hammer has a higher life. Under the same working conditions, its service life is at least 1 times higher than that of the high manganese steel hammer. However, the manufacturing process is complex, the process requirements are strict, and the quenching and tempering heat treatment of the hammerhead is critical. After the quenched and tempered heat treatment, not only the overall tensile strength exceeds 850 MPa but also considerable plasticity and toughness are required. At the same time, it is strictly forbidden to enter the fractured iron block. The machine requires a two-stage iron suction device at the front end of the feed. This will also become an important consideration for many users who choose the material to a certain extent.

In summary, we all hope to find high toughness and high hardness of the hammer material, but few hammer material can take into account the toughness and hardness, itself is a contradiction between the two, the hammer will inevitably in use Impact wear and cutting wear to varying degrees. Therefore, when selecting the hammer head material, it is necessary to fully understand working conditions and wear mechanisms, and reasonably select the hammer head material.


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