Telescopic tempering device

Abstract

The invention provides a telescopic tempering device. The device comprises a box body A, a box body B, a locking rod and a cover, wherein the box body B can move up and down relative to the box body A; the locking rod can be used for controlling the stay position of the box body B on the box body A; the box body A, the box body B and the cover can form a closed space. The telescopic tempering device disclosed by the invention has the beneficial effects of satisfying the requirements of parts on different sizes and guaranteeing the timeliness of tempering; moreover, the device disclosed by the invention is provided with a fan, so temperature uniformity is realized; besides, a main body material of the device disclosed by the invention is a heat insulating plate, so the device has the advantages of good heat insulation performance, low manufacturing cost and simplicity and convenience in operation.

Description

technical field [0001] The invention belongs to the technical field of heat treatment, and in particular relates to a retractable tempering device for tempering extra-large and special-shaped parts that cannot meet the size requirements of ordinary tempering furnaces. Background technique [0002] In the process of heat treatment, some parts with extra large size or strange shape are usually encountered. After quenching, these parts need to be tempered in time to avoid serious deformation or even cracking caused by excessive stress. Due to the fixed size of the ordinary tempering furnace, if the size of the part exceeds the size of the furnace body, it cannot be tempered according to the conventional method. At present, there are two traditional tempering methods for non-standard parts: [0003] 1. Transfer to an enterprise with large-scale heavy industrial heating equipment for tempering; [0004] 2. After quenching, there is a certain residual temperature for self-temper...

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Problems solved by technology

[0005] However, there are certain defects in these two methods: if the first method is transferred to other companies for processing, not only the time cannot be guaranteed, but also the quality cannot be controlled; Controlled by experience, if the residual temperature is not enough, the expected tempering effect cannot be achieved, and if the residual temperature is too high, it means that the cooling is insufficient, resulting in the defect that the mechanical properties cannot meet the requirements

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