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Heat treatment method capable of achieving sufficient solid solution and sufficiently starting from high-temperature multi-time variable-temperature alternating aging

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, poor quality stability, and long heating time of heat treatment equipment, achieve maximum furnace loading and mass production requirements, reduce solid The total time of melting and aging, and the effect of improving the efficiency of heat treatment

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 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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  • Heat treatment method capable of achieving sufficient solid solution and sufficiently starting from high-temperature multi-time variable-temperature alternating aging
  • Heat treatment method capable of achieving sufficient solid solution and sufficiently starting from high-temperature multi-time variable-temperature alternating aging
  • Heat treatment method capable of achieving sufficient solid solution and sufficiently starting from high-temperature multi-time variable-temperature alternating aging

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Embodiment Construction

[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] like figure 2 As shown, the embodiment of the present invention proposes a method of fully solid solution and fully starting from high temperature and multiple variable temperature alternating aging heat treatment, including: step 21, sufficient solution heat treatment process; and step 22, sufficiently starting from high temperature multiple variable temperature Alternative aging heat treatment process.

[0048] The proce...

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Abstract

The invention provides a heat treatment method capable of achieving sufficient solid solution and sufficiently starting from high-temperature multi-time variable-temperature alternating aging. The heat treatment method comprises a sufficient solid solution heat treatment process and a heat treatment process capable of sufficiently starting from high-temperature multi-time variable-temperature alternating aging. According to the scheme, the difficulties in theory and practice of special heat treatment technology that austenitic stainless steel is poor in solid solution and aging heat treatment quality stability, low in qualified rate, low in hardness, low in mechanical property, poor in consistency, long in heating time and low in efficiency; and that heat treatment equipment is poor in heating reliability, high-temperature components are short in service life, high in cost and the like 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 sufficient solid solution and sufficient starting from high temperature for multiple times of variable temperature and alternating 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 un...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/78C21D6/00
CPCC21D1/78C21D6/00C21D2211/001
Inventor 李志广赵伟吴鑫孔冰李晓霞孙柱
Owner 山西柴油机工业有限责任公司
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