Furnace temperature overshoot control device

Abstract

The invention discloses a furnace temperature overshoot control device. The device is arranged at the top of a solution and aging integrated furnace; the device comprises a cold air mixing device; the cold air mixing device comprises a main cold air pipe arranged at the top of the furnace, at least one branch cold air pipe connected to the main cold air pipe and an air blower connected to the main cold air pipe; an air outlet of the branch cold air pipe is located in the side, facing to the inside of the solution and aging integrated furnace, at the top of the furnace; and an outlet of the air blower is provided with an outlet regulating valve. Heat in the furnace can be successfully discharged to the outside of the furnace through distributing cold air into the furnace and combining with an exhaust pipe at the top of the furnace; and a plurality of air outlets are formed in the furnace, so that the temperatures of all regions in the furnace can be within a required temperature difference range, the overall quality of workpieces can be ensured, and the quality difference of the workpieces in the same batch can be reduced.

Description

technical field [0001] The invention relates to a heat treatment device for metal workpieces, in particular to a device for controlling furnace temperature overshoot. Background technique [0002] In heat treatment equipment, more and more solid solution aging furnaces are used. It is often necessary to be compatible with both solid solution and aging processes. The temperature control range needs to be adjusted between 80-600 °C. Because the temperature difference adjustment range is very large, so Higher requirements are placed on the temperature control of the equipment. At present, in the traditional process, the solid solution and aging treatment are generally completed by two separate equipments, which can well control the overshoot of the furnace temperature. At present, in order to reduce equipment investment, more enterprises use the same equipment to complete both solid solution and aging processes. Since the temperature of solution treatment is much higher than t...

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Problems solved by technology

At present, in order to reduce equipment investment, more enterprises use the same equipment to complete both solid solution and aging processes. Since the temperature of solution treatment is much higher than the temperature of aging treatment, and the solution treatment is first followed by aging treatment, During the aging treatment, due to the continuous release of a large amount of heat stored in the workpiece, and the large amount of heat stored in the heating device is also continuously brought to the working area with the circulating fan, so that in the process of aging treatment, local areas in the heat treatment equipment The phenomenon of overheating often occurs, and the uniformity of temperature in the heat treatment equipment cannot reach the standard, which affects the uniformity of the quality of the workpiece, so that the quality of the workpiece cannot be effectively improved

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