The pick is one of the vulnerable parts in coal mining and roadway driving machinery. It is the main tool for coal falling and crushing. Its performance directly affects the production capacity, power consumption, working stability and other related parts of the shearer There are many kinds of picks for the long service laser pointer life. The general structure is to embed a hard alloy cutter head on a quenched and tempered low alloy structural steel body.
Picks are subjected to high cyclical compressive stress, shear stress, and impact load during work. The main failure modes are the tool tip falling off, chipping and tool tip and tool body wear. Under certain conditions, it is often caused by the tool body. Fracture causes the failure of the pick. Since the mechanical properties of the pick body directly affect the service life of the pick, a reasonable selection of the material of the pick body and effective heat treatment method will reduce the wear and break of the pick body. Reducing the consumption of shearer picks, improving the operation rate of coal mining machinery, and increasing the overall economic benefits of coal mining production are all positive.
Picks are vulnerable parts of mining machinery. Through long-term analysis and research on picks, the reliability of shearer picks has been studied from several aspects such as the selection of new picks, the arrangement of the picks and the improvement of the pick structure. Simple analysis, improve the reliability of the pick, reduce the proportion of the tooth consumption in the cost of coal per ton, increase the effective working time of the shearer, the reliability of the shearer and the factors of the pick itself, the factors of the shearer, Many factors such as coal seam occurrence conditions are related.
The staff who frequently operate the shearer must know well that the shearer pick is one of the more easily damaged equipment on the shearer. The problem of repairing the pick after damage has become the most concerned issue for manufacturers and customers. Today I will introduce you A method of pick repair, which enables the product to achieve the greatest economic value.
Ultra-high speed laser cladding, also known as EHLA (Extreme High Speed Laser Cladding), was invented by Fraunhofer ILT in Germany. It is known as the most competitive alternative electroplating technology because of the innovative technology it brings to the industry Progress, in 2017 won the Fraunhofer Association Innovation Award (Joseph von Fraunhofer), German laser engraver Innovation Award (Berthold Leibinger Innovationspreis), German Steel Association Innovation Award (Steel Innovation Prize program) and other awards.