Briefly introduce the application of precision tungsten steel bushings?

Tungsten steel bushings are mainly used for stamping and stretching. Carbide is widely used as tool material, such as turning tools, milling cutters, planers, drills, boring tools, etc., for cutting cast iron, non-ferrous metals, plastics, chemical fibers, graphite, glass, stone and ordinary steel, and can also be used for cutting Difficult-to-machine materials such as heat-resistant steel, stainless steel, high manganese steel, tool steel, etc. Now the cutting speed of new carbide tools is hundreds of times that of carbon steel.

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The main function of the cemented carbide bushing is that the bushing is a type of component that protects the equipment. The use of the bushing can effectively reduce the wear between the punch or the bearing and the equipment, and achieve a guiding role. In terms of stamping dies, tungsten steel bushings are widely used because of their wear resistance and good finish, and do not need to be replaced frequently, thus achieving higher utilization rates of equipment and personnel.

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In terms of stretching of cemented carbide bushings, it is mainly the stretching of some copper parts and stainless steel parts. Due to the high frequency of use, it is easy to heat up and cause wear of the bushing, so that the punching needle shifts, the size error of the product, and the product size error. poor appearance.

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With the increase of oil extraction, the oil on the shallow surface decreases. In order to ensure the oil usage, people gradually develop to large deep wells and high-deviated wells, but the difficulty of oil extraction is gradually increasing, so the parts for oil extraction are required to have good quality. Wear resistance, corrosion resistance or impact resistance, etc.

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Carbide bushings, as wear-resistant parts in petroleum machinery wells, have the properties of high hardness, good wear resistance and high finish. They have been widely used in modern society and meet the needs of daily use and special properties. Some enterprises use spray welding process to improve the durability and service life of cemented carbide bushings.

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The hardness of the spray-welded carbide bushing can reach HRC60, and the wear resistance is better, which can meet the requirements of the petroleum machinery industry. However, the spray-welded carbide bushing needs to be turned to ensure the size of the drawing. requirements and precision requirements.

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At present, common tool materials include carbide tools, ceramic tools and cubic boron nitride tools, but carbide tools can be excluded from the hardness of carbide bushings. Although ceramic tools are suitable for machining high-hardness workpieces, they are only suitable for machining high-hardness workpieces. Suitable for finishing operations with small allowances. Therefore, the most suitable tool material for machining cemented carbide bushings is the cubic boron nitride tool.