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What are the common reasons for overheating of alloy wear-resistant hammer heads?

Jun 04,2025

Summary: The alloy wear-resistant hammer head is an important component of the crusher, but overheating of the hammer often occurs during use. Overheating can affect the lifespan and productivity of hammers, but there are many reasons for hammer overheating.

The alloy wear-resistant hammer head is an important component of the crusher, but overheating of the hammer often occurs during use. Overheating can affect the lifespan and productivity of hammers, but there are many reasons for hammer overheating. Therefore, to fundamentally solve this problem, it is necessary to identify the main cause of hammer overheating.

The alloy wear-resistant hammer head is an important component of the crusher, but overheating of the hammer often occurs during use. Overheating can affect the lifespan and productivity of hammers, but there are many reasons for hammer overheating. Therefore, to fundamentally solve this problem, it is necessary to identify the main cause of hammer overheating. Some of the reasons for the overheating of the hammer are believed to be as follows:

1、After the elastic coupling makes a knocking sound, it can be seen that the pins are loose and the elasticity is worn. The corresponding solution is to stop and tighten the shaft nut, and replace the elastic ring.

2、If the bearing overheats, it can be confirmed that the bearing damage is caused by a shortage, excess, or contamination of grease. The appropriate solution is to inject an appropriate amount of lubricating grease, and the lubricating grease inside the bearing must be 50% of the spatial volume. Clean the bearings, replace grease and bearings.

3、If the output decreases, it may be due to screen gap blockage or unevenness. The solution is to park, clear the screen gap blockage, or adjust the lobster structure.

4、Because if there is a knocking sound inside the machine, unbreakable objects will enter the machine. Loosen the fasteners of the gasket and strike the gasket with a hammer. The hammer or other components are damaged. Corresponding solution: Stop and clean the ruptured cavity. Check the fastening status of the gasket and the gap between the hammer and the screen strip. Replace damaged components.

5、If the unloading particle size is too large, it may be due to excessive wear of the wear-resistant hammer or physical fracture. Therefore, replacing the hammer or physique may be a solution.

6. The sudden decrease in vibration is due to the rotor's static balance not meeting the requirements when replacing the wear-resistant hammer, or the wear of the cone. Hammer head fracture, rotor imbalance; Bending and damage of the pin shaft; Cracks in triangular or circular discs; The anchor bolt is loose. Corresponding solution: Remove the hammer and select the hammer based on its weight, so that the total hammer weight of each hammer shaft is equal to the total hammer weight of the other hammer shaft. In other words, static balance meets the requirements. Replace the hammer; Replace the pins; Welding repair or replacement; Tighten the anchor bolt.

Deoxygenation method for alloy wear-resistant hammer heads! The quality of high manganese steel is closely related to the type, amount, and order of deoxidizer added. The deacidification of high manganese steel smelting consists of pre deacidification of molten steel, diffusion deacidification of reducing machine, and deacidification of Zhongshan. In ordinary carbon steel, the manganese content is less than 1% and cannot function as a deacidification agent. The manganese content in high manganese steel is high, especially after adding alloyed manganese iron, the manganese content in the surrounding molten steel is high, the temperature is low, and the trend of manganese and oxygen combining to form MnO increases. But this will only lead to an increase in MnO inclusions in the steel and combustion of alloyed ferromanganese. Therefore, before adding alloyed manganese iron, the oxygen content of the steel will be sufficiently reduced to prevent human manganese oxidation. In this way, the low temperature of the molten steel will not form a large amount of material, so pre deacidification is an important part.

The smelting of alloy wear-resistant hammer heads can use aluminum, silicon calcium, silicon iron, rare earth metal elements, etc. as pre deoxidizers. It can be used alone or added in combination. When preparing other deoxidizers, some manganese iron can also be added. Comparing the effects of various deoxidizers, aluminum, silicon calcium, and rare earth elements have stronger effects.

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