Thermal treatment process of pressurizer rotor shaft
A technology of rotor shaft and supercharger, which is used in heat treatment furnaces, heat treatment equipment, manufacturing tools, etc., can solve the problems of affecting profits, loss of blades on rotor shafts, and low heat treatment and tempering temperature of supercharger rotor shafts. The effect of problem improvement and service life improvement
Inactive Publication Date: 2015-03-25
WUXI BAISHUN MACHINERY PLANT
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AI Technical Summary
Problems solved by technology
[0002] Due to the low tempering temperature of the supercharger rotor shaft heat treatment, some rotor shafts have the problem of blade drop, which damages the company's image; in the past, the rotor shafts often have different materials, but they cannot be distinguished when put together. In terms of cost Unable to determine the correct cost of a workpiece, leading to the phenomenon of high-input and low-outflow of the company's products, which affects profits
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0010] Embodiment 1: A supercharger rotor shaft heat treatment process, comprising the following steps:
[0011] 1) Put the rotor shaft blank completed by friction welding into the tempering furnace;
[0012] 2) Set the temperature of the tempering furnace to 450°-620°, and temper the workpiece in the tempering furnace for 2.5-4.5 hours;
[0013] 3) After the tempering is completed, put the workpiece in a water-cooled environment for rapid cooling.
[0014] Beneficial effects of the present invention: the rotor shaft shedding problem produced by the heat treatment process of the present invention has been significantly improved, from the original 0.5% to 1.2‰, and the service life has also been greatly improved.
[0015]
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The invention discloses a thermal treatment process of a pressurizer rotor shaft. The thermal treatment process comprises the following steps: 1) putting back a rotor shaft blank subjected to friction welding into a tempering furnace; 2) setting the temperature of the tempering furnace to be 450-620 DEG C, and tempering a workpiece for 2.5-4.5 hours in the tempering furnace; and 3) after the tempering is completed, putting the workpiece into a water cooling environment and rapidly cooling. By adopting the thermal treatment process disclosed by the invention, the problem that a rotor shaft is dissociated is remarkably solved, the rate is reduced to be 0.12% from the conventional 0.5%, and the service life of the pressurizer rotor shaft is also greatly prolonged.
Description
technical field [0001] The invention relates to a supercharger rotor shaft heat treatment process. Background technique [0002] Due to the low tempering temperature of the supercharger rotor shaft heat treatment, some rotor shafts have the problem of blade drop, which damages the company's image; in the past, the rotor shafts often have different materials, but they cannot be distinguished when put together. In terms of cost Unable to determine the correct cost of a piece of work, leading to the phenomenon that the company's products are high in and low in output, thus affecting profits. Contents of the invention [0003] The purpose of the present invention is to provide a supercharger rotor shaft heat treatment process. [0004] A supercharger rotor shaft heat treatment process, comprising the following steps: [0005] 1) Put the rotor shaft blank completed by friction welding into the tempering furnace; [0006] 2) Set the temperature of the tempering furnace to 450...
Claims
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IPC IPC(8): C21D9/28
CPCC21D9/28C21D1/18
Inventor 钱文明
Owner WUXI BAISHUN MACHINERY PLANT