Introduction
Advantages of coal picks
1. There are many kinds of coal picks with different shapes, which can adapt to different working conditions. The working environment of the shearer is different. For example, some coal rocks are less hard, so engineers need to use coal picks of the same hardness. Otherwise, they need to use the same model of high hardness pick. Common shearer pick shapes are flat picks and picks. Among them, the flat pick is suitable for cutting coal with different hardness such as har
Details
Advantages of coal picks
1. There are many kinds of coal picks with different shapes, which can adapt to different working conditions. The working environment of the shearer is different. For example, some coal rocks are less hard, so engineers need to use coal picks of the same hardness. Otherwise, they need to use the same model of high hardness pick. Common shearer pick shapes are flat picks and picks. Among them, the flat pick is suitable for cutting coal with different hardness such as hard and viscous, while the pick is more suitable for brittle coal, which greatly prolongs the service life of different picks.
2. The fixing equipment of the coal cutting hook is simple, the engineer can not only install and repair it quickly, but also can easily disassemble and maintain it after use, and the production efficiency is greatly improved.
3. The pick has good wear resistance and exquisite manufacturing technology, which is really high quality and low price. Now, the materials used to make picks are more in line with the environmental needs of engineers. They not only have good wear resistance, but also have more guaranteed quality. Also, in terms of price, this new breed doesn’t get expensive because of its high quality. The cutting and crushing process of coal and rock is the main process of coal pick work.
According to the mechanical properties, the cutting and crushing process can be roughly divided into four stages: deformation stage, crack stage, compacted core formation stage, crack propagation and cracking stage. In each cycle, these four processes are completed instantaneously. These four processes can be divided into two stages according to their characteristics. One stage is the energy storage stage of crack formation and compacted core formed by elastic-plastic deformation, that is, a fracture in the form of cracks; the other stage is the collapse stage. On the basis of one stage, under the action of cantilever loading system, the Hertzian crack around the conical hole expands and collapses along the weak surface of bedding and joints in coal and rock mass, which is a kind of collapsed fracture. As a manufacturer of wear-resistant materials and high-grade wear-resistant parts, our company is also very reliable and high-quality in the production technology of coal cutting teeth. It adopts alloy steel, independently develops molds, and researches new processes; it has automatic surfacing equipment for wear-resistant layers, which greatly improves the impact resistance and wear resistance of picks; the heat treatment process is also quite mature. Technicians repeatedly test the tempering temperature and time to achieve a better solution to ensure the stability and uniformity of the temperature, so that the coal cutter has the characteristics of high hardness, uniform hardness and strong wear resistance.
