Hard alloy roller ring repair device
A cemented carbide, roller ring technology, applied in metal rolling, metal rolling, metal processing equipment and other directions, can solve the problem of low service life, improve service life, reduce resources, improve use efficiency and comprehensive recycling horizontal effect
Inactive Publication Date: 2018-08-03
袁杰
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[0021] Firstly, electric arc or flame is used to heat the filamentous or powdery material with the same composition as the roller ring to make it into a molten or semi-molten state, and rely on high-speed gas to disperse and refine it, and then pass through the conduit 3 and the shunt pipe 4 1. The spray head 5 impacts the surface of the roller ring 1 at high speed to form a repair coating, and the clamping motor 11 drives the rotating shaft 6 to rotate, so that the roller ring 1 rotates and is pressed by the die 2, thereby realizing the function of repairing layer pressing and making it solidify quickly In order to obtain the surface of the repair layer that is closely combined with the roll ring 1 and has the same composition as the roll ring 1, it has the characteristics of dense structure, high surface hardness, and can be tightly combined with the roll ring 1, so as to meet the requirements of the rolling groove of the roll ring Performance, repair roll ring groove.
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The invention relates to a hard alloy roller ring repair device, and belongs to the technical field of machining. The hard alloy roller ring repair device is characterized in that electric-arc or flames are firstly adopted, and a silk-like or powdered material with components consistent with those of the roller ring is heated, so that the roller ring is in a molten or semi-molten state; the rollerring is dispersed and refined through high-speed gas, a repair coating is formed by impacting the surface of the roller ring at a high speed through a guide tube, a division tube and a spray head, and a clamping motor drives a rotary shaft to rotate, so that the roller ring rotates; through pressing by a pressure mould, the pressing function of a repair layer is realized, so that the repair layeris quickly condensed to obtain a surface of the repair layer which is tightly combined with the roller ring and has components consistent with those of the roller ring, and the roller ring has the characteristics of being compact in structure, relatively high in surface hardness, capable of tightly combining with the roller ring, and therefore, performances required by a rolling groove of the roller ring are achieved, and the rolling groove of the roller ring is repaired. The repaired roller ring is put into production, and various residual stress generated in processes of manufacturing, processing and using a milling roller can be eliminated through the repair layer, so that the service life of the milling roller is prolonged.
Description
technical field [0001] The invention relates to a cemented carbide roller ring repair device, which belongs to the technical field of mechanical processing. Background technique [0002] The wire rod is rolled by a wire rod mill. According to the range of rolling speed, wire rods can be divided into high-speed wire rods and ordinary wire rods. At present, high-speed wire rods are mainly used in China. High-speed wire rod is based on the high-speed wire rolling process and is rolled by a high-speed wire rod rolling mill. The high-speed rolling process has high requirements on the performance of the rolling mill, especially the performance of the rolls in the rolling mill. At present, among the rolls used in high-speed wire mills, the best performance and the most widely used are cemented carbide composite rolls composed of high-performance alloy steel roll shafts and hard alloy roll rings. The use of cemented carbide composite rolls can greatly increase the life of the rol...
Claims
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Login to View More IPC IPC(8): B21B28/02B23P6/00
CPCB21B28/02B23P6/00
Inventor 袁杰王文新朱华
Owner 袁杰