Sufficient solid solution and sufficient multi-time cooling variable-temperature aging composite heat treatment method

A composite heat treatment and solution heat treatment technology, applied in the field of material heat treatment, can solve the problems of low mechanical properties, poor heating reliability of heat treatment equipment, and low hardness.

Pending Publication Date: 2021-04-23
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, po

Method used

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  • Sufficient solid solution and sufficient multi-time cooling variable-temperature aging composite heat treatment method
  • Sufficient solid solution and sufficient multi-time cooling variable-temperature aging composite heat treatment method
  • Sufficient solid solution and sufficient multi-time cooling variable-temperature aging composite heat treatment method

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Embodiment Construction

[0050] 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.

[0051] Such as figure 2 As shown, the embodiment of the present invention provides a method of sufficient solid solution and sufficient cooling and heating aging heat treatment. The method includes: step 21, the process of sufficient solution heat treatment; step 22, the process of sufficient multiple cooling and variable temperature aging heat treatment.

[0052] The process of the method is as follows: firstly carry out the firs...

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Abstract

The invention provides a sufficient solid solution and sufficient multi-time cooling variable-temperature aging composite heat treatment method. The method comprises a sufficient solid solution heat treatment process and a sufficient multi-time cooling variable-temperature aging heat treatment process. According to the scheme, the problems that mainstream austenitic stainless steel solid solution and aging heat treatment are 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, 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 material heat treatment, in particular to a compound heat treatment method of sufficient solid solution and sufficient multiple times of temperature-changing and aging-aging. 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 t...

Claims

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Application Information

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IPC IPC(8): C21D1/78C21D6/00
CPCC21D1/78C21D6/00C21D2211/001
Inventor 李志广钟国栋李二红李全平孙柱侯廷
Owner 山西柴油机工业有限责任公司
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