Complex heat treatment method for sufficient solid solution and multiple variable-temperature alternating aging starting from low temperature

A composite heat treatment and solution heat treatment technology, which is applied in heat treatment equipment, heat treatment process control, manufacturing tools, etc., can solve the problems of poor heating reliability of heat treatment equipment, low service life and low efficiency of high-temperature components, and reduce solid solution and heat treatment. The effect of aging holding time on total time

Pending Publication Date: 2022-04-29
山西柴油机工业有限责任公司
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Problems solved by technology

It can solve the problem of poor quality stability, low qualified product rate, low hardness (or low mechanical properties) and poor consistency of existing traditional mainstream austenitic stainless steel solid solution and aging heat treatment, long heating time, low efficiency, poor heating reliability of heat treatment equipment and Theoretical and practical problems of "one long, one high, three different and five low" unique heat treatment technology such as low service life and high cost of high temperature components

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  • Complex heat treatment method for sufficient solid solution and multiple variable-temperature alternating aging starting from low temperature
  • Complex heat treatment method for sufficient solid solution and multiple variable-temperature alternating aging starting from low temperature
  • Complex heat treatment method for sufficient solid solution and multiple variable-temperature alternating aging starting from low temperature

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[0046] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0047] In the present invention, this embodiment describes a composite heat treatment method of sufficient solid solution and sufficient starting at low temperature multiple times of variable temperature and alternating aging, the method includes "a sufficient solution heat treatment method" and "a fully starting Low temperature multiple variable temperature alternating aging heat treatment method "continuously using composite compo...

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Abstract

The invention provides a composite heat treatment method for sufficient solid solution and multiple variable-temperature alternating aging starting from low temperature. The method comprises a sufficient solid solution heat treatment process and a low-temperature multi-time variable-temperature alternating aging composite heat treatment process which is sufficiently started from the low-temperature multi-time variable-temperature alternating aging composite heat treatment process. According to the scheme, the problems that austenitic stainless steel solid solution and aging heat treatment is poor in quality stability, low in qualified product rate, low in hardness, low in mechanical property, poor in consistency, long in heating time, low in efficiency and low in cost can be solved. And heat treatment equipment is poor in heating reliability, high-temperature components are short in service life, the cost is high, and other special heat treatment technology theories and practice problems are solved.

Description

technical field [0001] The invention relates to the technical field of heat treatment of materials, in particular to a composite heat treatment method of sufficient solid solution and multiple times of variable temperature and alternating aging starting from low temperature. Background technique [0002] The heat treatment principles of austenitic stainless steel (see GB / T1220, GB / T1221, GB / T12773, etc.) Therefore, alloy structural steel is very easy to greatly improve the hardness (or mechanical properties) of the material through quenching and tempering heat treatment methods; while austenitic stainless steel cannot undergo high-temperature austenite transformation under high temperature conditions (only dissolution and precipitation Alloying element strengthening phase), therefore, it is extremely difficult for austenitic stainless steel to greatly improve the hardness (or mechanical properties) of the material through solid solution and aging heat treatment. [0003] Th...

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Application Information

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IPC IPC(8): C21D6/02C21D1/78C21D11/00
CPCC21D6/02C21D1/785C21D11/00C21D2211/001
Inventor 李志广郝忠李全平刘继强范玉树马强
Owner 山西柴油机工业有限责任公司
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