What is the difference in performance between cut-off teeth with and without a wear layer?

2023-11-17 16:20:53

Cutting gear is a key component of mining machinery, its main function is to cut off the rock or coal mine. As they are subjected to high impact and abrasion during the mining process, they need to be wear-resistant to ensure their service life. In order to improve the wear resistance of the cut-off teeth, manufacturers usually add a wear-resistant layer on the surface of the cut-off teeth. This layer effectively improves the wear resistance and service life of the gears. However, the performance of wear-resistant layers may vary from manufacturer to manufacturer, and the following is a discussion of the differences in performance between interceptors with and without wear-resistant layers.

Firstly, a cut-off tooth with a wear layer can withstand high intensity wear. Due to the unique nature of mining operations, cut-off teeth are subjected to strong abrasive forces as their surfaces rub against rock or coal. If there is no wear-resistant layer on the teeth, it is easy to have serious surface wear, resulting in the loss of cutting function of the teeth, thus affecting the mining efficiency. The wear-resistant layer can reduce the abrasion in the friction with the rock or coal, and prolong the service life of the cut-off teeth.

Secondly, the hardness of cut-off teeth with wear-resistant layer is higher. Hardness is a measure of the ability of an object to resist external physical changes, for the cut-off teeth, the higher the hardness, the more it can resist the friction and impact between the cut-off teeth and the rock or coal mine. Therefore, interceptors with wear-resistant layers generally have higher hardness and can better withstand the impact and pressure of the mining process.

Again, cut-off teeth with wear-resistant layer have better corrosion resistance. In the mining operation, rock or coal mine often exists in some chemical substances, these chemical substances are easy on the tooth corrosion, reduce its service life. The wear-resistant layer of the gears by adding a layer of special coating on the surface to improve the corrosion resistance, thus reducing the damage of corrosion on the gears.

Finally, the gears with wear-resistant layer have better self-lubricating performance. Due to the special characteristics of mining operations, the cut-off teeth will generate a lot of frictional heat in the process of friction with the rock or coal mine. If there is no good self-lubricating performance, the surface of the cut-off teeth will produce a high coefficient of friction, which will aggravate the wear and heat accumulation, and reduce the service life of the cut-off teeth. The cut-off teeth with wear-resistant layer will often add a layer of lubrication on the surface, can effectively reduce the frictional heat, improve the self-lubricating performance of cut-off teeth.

In a word, the cut-off teeth with wear-resistant layer have obvious advantages in wear-resistant performance compared with the cut-off teeth without wear-resistant layer. The wear-resistant layer can improve the wear resistance, hardness, corrosion resistance and self-lubricating performance of the cut-off gear, thus prolonging the service life of the cut-off gear and improving the mining efficiency. Of course, different manufacturers produce different wear-resistant layers with different properties, so when choosing the gears need to be selected according to the specific needs and the actual situation.