A kind of tempering method and matching tempering device
A technology of vibration tempering and heat preservation warehouse, applied in the field of tempering device and tempering, can solve the problems affecting the quality stability of steel balls, uneven quality of steel balls, uncontrollable cooling speed, etc., so as to improve product quality and product quality. The effect of uniform and guaranteed quality stability
Inactive Publication Date: 2017-06-16
郑州赫芃新材料科技有限公司
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Problems solved by technology
Although this tempering method is simple, there are many problems: 1) During the tempering process, due to the uneven temperature of the steel balls at different positions in the heat preservation barrel, the quality of the steel balls will be uneven; 2) The cooling rate cannot be adjusted. control, and is greatly affected by the environment, which affects the stability of the quality of the steel ball; 3) The tempering effect is poor, and the phenomenon of steel ball bursting still occurs from time to time
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[0019] A tempering method includes the step of vibrating and tempering workpieces in a heat preservation chamber.
[0020] A vibration tempering device such as figure 1 and figure 2 As shown, it includes a roadway 11 and a plurality of thermal insulation bins distributed on both sides of the tunnel 11. Each thermal insulation bin is composed of a pool body 2 and a top cover. The pool body 2 consists of a front wall 201, a rear wall 202 and two side walls. 203, the inner wall of the pool body 2 is covered with an insulating layer 3, and the roadway 11 and the pool body 2 sink below the ground. A vibrating bed 1 is arranged in the heat preservation chamber, and a program temperature control system is also arranged on the heat preservation chamber. The program temperature control system includes a central processing unit, a temperature sensor arranged in the heat preservation bin, an exhaust device arranged on the top cover of the heat preservation bin, and a plurality of air ...
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A tempering method and a matching tempering device, belonging to the technical field of heat treatment of metal materials, the tempering method includes the step of vibrating and tempering workpieces in a heat preservation chamber; the corresponding tempering device includes a heat preservation chamber, heat preservation There is a vibrating bed in the warehouse, and a program temperature control system is also installed on the heat preservation warehouse. The method provided by the invention adjusts the residual stress in the workpiece through the dual effects of temperature and vibration, which can significantly improve the service strength of the workpiece and reduce cracking. The supporting tempering device provided is reasonable in structure, easy to operate, low in energy consumption and good in effect, especially suitable for small-sized products such as steel balls and steel cones.
Description
technical field [0001] The invention belongs to the technical field of heat treatment of metal materials, and in particular relates to a tempering method and a tempering device matched with the method. Background technique [0002] Tempering is a technique for smelting iron and steel. It refers to a treatment method in which quenched hardened or normalized steel is immersed at a temperature lower than the critical temperature for a period of time and then cooled at a certain rate to increase the toughness of the material. . Tempering can promote the precipitation of some carbides, and at the same time eliminate part of the residual stress caused by rapid cooling, thereby preventing deformation and cracking of the workpiece. [0003] At present, the tempering of grinding steel balls is mostly carried out in the heat preservation barrel (or heat preservation furnace), that is, the quenched steel balls are filled into the heat preservation barrel, and the lid is sealed; the re...
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IPC IPC(8): C21D1/18
Inventor 房少卿孙世锋
Owner 郑州赫芃新材料科技有限公司