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Rapid solid solution and rapid multi-cooling variable-temperature aging heat treatment method

An aging heat treatment and solution heat treatment technology, applied in the field of material heat treatment, can solve the problems of poor heating reliability, low efficiency and high cost of heat treatment equipment, and achieve the effect of reducing the total time of solution and aging heat preservation.

Pending Publication Date: 2021-04-30
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 austenitic stainless steel solution and aging heat treatment, long heating time, low efficiency, poor heating reliability of heat treatment equipment and the use of high temperature components Theoretical and practical problems of "one long, one high, three different and five low" unique heat treatment technology such as low life and high cost

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  • Rapid solid solution and rapid multi-cooling variable-temperature aging heat treatment method

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[0054] 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.

[0055] Such as figure 2 As shown, the embodiment of the present invention proposes a rapid solution and multiple times of rapid cooling and variable temperature aging heat treatment method, including: step 21, a rapid solution heat treatment process; and step 22, a rapid multiple cooling and variable temperature aging heat treatment process.

[0056] The process of the method is as follows: firstly carry out the first part of rapi...

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Abstract

The invention provides a rapid solid solution and rapid multi-cooling variable-temperature aging heat treatment method. The rapid solid solution and rapid multi-cooling variable-temperature aging heat treatment method involves a rapid solid solution heat treatment process and a rapid multi-cooling variable-temperature aging heat treatment process. According to the scheme, the special heat treatment technical problems of "one long, one high, three poor and five low", namely, poor quality stability, low qualified product rate, low hardness, low mechanical property, poor consistency, long heating time, low efficiency, poor heating reliability of heat treatment equipment, short service life of high-temperature components, high cost and the like of austenitic stainless steel heat treatment can be solved.

Description

technical field [0001] The invention relates to the technical field of heat treatment of materials, in particular to a heat treatment method for fast solid solution and fast multiple times of temperature-changing and aging heat treatment. Background technique [0002] The heat treatment principles of austenitic stainless steel and alloy structural steel are completely different: alloy structural steel can undergo high-temperature austenite transformation under high temperature conditions. Therefore, alloy structural steel can easily increase the hardness of the material through quenching and tempering heat treatment methods ( or mechanical properties); and austenitic stainless steel cannot undergo high-temperature austenite structural transformation under high temperature conditions (only the strengthening phase of alloying elements can be dissolved and precipitated), so it is extremely difficult for austenitic stainless steel to undergo solid solution and aging heat treatmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D6/00C21D1/78
CPCC21D1/78C21D6/00C21D2211/001
Inventor 李志广杨俊伟殷彬栋安文忠李全平孔冰
Owner 山西柴油机工业有限责任公司
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