Device for assisting solid solution heat treatment of metal component through pulse current

Abstract

The invention provides a device for assisting solid solution heat treatment of a metal component through pulse current. The device comprises a support and a bearing frame. The support is arranged in ahearth of a high-temperature solid solution furnace. The bearing frame comprises a frame and insulation rods. The center area of the frame is set to be of a hollow structure, and protruding edges with the top faces lower than the top faces of frame strips are arranged on the inner side walls of a pair of parallel frame edges of the frame. Conductive blocks are fixed to the top faces of the insulation rods. The two conductive blocks are connected with two poles of a pulse power source correspondingly. The two ends of the metal component are in lap joint to the conductive blocks corresponding to the two insulation rods, and the positions of the two insulation rods can be moved on the protruding edges. A pulse current loop is formed by the pulse power source, a wire, the conductive blocks and the metal component for studying the influences of the pulse current on a material microstructure in the metal component solid solution heat treatment process and whether dissolving of indissolvablesolute atoms can be promoted or not; and the device is simple, convenient and reliable to use, cost is low, and the test reliability and accuracy are improved.

Description

technical field [0001] The invention relates to the technical field of heat treatment of metal materials assisted by external field control, in particular, to a device for pulse current assisted solid solution heat treatment of metal components. Background technique [0002] The solid solution heat treatment of metal refers to the dissolution of solute atoms in the alloy into the matrix by high temperature heating, followed by rapid cooling to inhibit the re-precipitation of the strengthening phase during cooling, so as to obtain a supersaturated metal ( Such as aluminum) is the α-solid solution of the matrix, which prepares the microstructure for the next step of precipitation aging strengthening. [0003] In order to explore the influence of different heat treatment aging processes on the properties of metal materials, the metal materials are generally subjected to solution heat treatment before heat treatment aging (such as creep aging process), so that the metal material...

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Problems solved by technology

[0003] In order to explore the influence of different heat treatment aging processes on the properties of metal materials, the metal materials are generally subjected to solution heat treatment before heat treatment aging (such as creep aging process), so that the metal materials are in a quenched state (the basic state of the material); and In order to explore the influence of pulse current on the solution heat treatment of metal components, a pulse current will be applied to the metal components during the solution heat treatment process, and then the stress relaxation aging test will be carried out, and finally the performance, springback, and residual stress of the formed components will be detected. , and then verify whether the metal components applied with pulse current in solution heat treatment are easier to form, have small springback, low residual stress, etc. , the movement of vacancies, etc., and then reflected in the macroscopic properties of the material), there is no public information about the electric pulse assisted metal component solution heat treatment device in the prior art, and the high temperature that can be used for solution heat treatment in the prior art The furnace is not designed for electric pulse-assisted solid solution heat treatment of metal components. The existing high-temperature furnace does not consider the insulation between the metal component and the high-temperature furnace body and how to introduce conductive wires into the high-temperature furnace; therefore , the existing high-temperature furnace cannot be directly used for electric pulse assisted solution heat treatment of metal components. In the prior art, there is a need for a simple and convenient device for electric pulse assisted solution heat treatment of metal components, so as to explore the impact of pulse current on metal components. Effect of solution heat treatment

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