A kind of bar material gradient heat treatment device and heat treatment method

Abstract

The invention relates to a rod-shaped material gradient heat treatment device and a heat treatment method. The rod-shaped material gradient heat treatment device comprises a heating device, a crystallizer and an extraction device; the heating device heats one end of a rod-shaped sample; the crystallizer cools the other end of the sample; the extraction device fixes the sample and is used for measuring a temperature gradient of the sample. Gradient heat treatment on a rod-shaped material is achieved with the adoption of the device. The device and the method have the following beneficial and technical effects that (1) compared with a traditional heat treatment method, the gradient heat treatment on the rod-shaped material is effectively achieved, structures after the heat treatment at different temperatures can be obtained from one sample, and a rule that solid-solution structures are changed along with the solid solution temperature is revealed rapidly and efficiently; and (2) temperature distribution of the sample is simply measured by utilizing a pair of thermocouples, the structure is simple, the operation is convenient, and the temperature is measured continuously.

Description

technical field [0001] The invention belongs to the technical field of heat treatment, and relates to a gradient heat treatment device and a heat treatment method for rod-shaped materials. Background technique [0002] Heat treatment is a thermal processing process for heating, heat preservation and cooling of solid materials. Through a suitable heat treatment process, the alloy composition can be homogenized, the microstructure can be improved, the stable phase can be obtained, and the mechanical properties of the alloy can be improved. [0003] The traditional research method of heat treatment process is the trial and error method, which can only summarize the rules through a large number of experiments, and then optimize the heat treatment process, which is time-consuming, labor-intensive and inefficient. At present, the research method of materials has gradually changed from the traditional trial and error method to the genetic engineering method. A notable feature of t...

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Problems solved by technology

Infrared temperature measurement is non-contact temperature measurement, and the measurement error of the temperature gradient inside the sample is relatively large; the thermocouple temperature measurement method is mainly to arrange multiple pairs of thermocouples along the axial direction of the sample for temperature measurement, the structure is complex, and the temperature measurement Discrete distribution of points, poor continuity

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