Rapid solid solution and rapid low-temperature multiple alternating aging composite heat treatment method

A technology of composite heat treatment and solid solution heat treatment, applied in heat treatment equipment, heat treatment process control, manufacturing tools, etc., can solve the problems of poor heating reliability, long heating time, and low qualified product rate of heat treatment equipment, and achieve the largest furnace loading capacity The effect of meeting the requirements of modernization and mass production, reducing the total time of solid solution and aging heat preservation, and improving the efficiency of heat treatment

Pending Publication Date: 2022-04-26
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 low-temperature multiple alternating aging composite heat treatment method
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  • Rapid solid solution and rapid low-temperature multiple alternating aging composite heat treatment method

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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 rapid solid solution and rapid starting low temperature multiple alternating aging composite heat treatment method, which includes "a rapid solid solution heat treatment method" and "a rapid starting low temperature Multiple alternating aging heat treatment method "consecutively uses composite composition " a kind of quick solid solution and fast beginning low temperature ...

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Abstract

The invention provides a composite heat treatment method for rapid solid solution and rapid starting from low-temperature multiple alternating aging. The composite heat treatment method comprises a rapid solid solution heat treatment process and a composite heat treatment process for rapid starting from low-temperature multiple alternating aging. 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 compound heat treatment method of rapid solid solution and rapid starting at low temperature for multiple times of alternating aging. 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] The meaning of solid solu...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/78C21D6/00C21D11/00
CPCC21D1/785C21D6/00C21D11/00
Inventor 李志广李京刘继林李全平高勇孔冰
Owner 山西柴油机工业有限责任公司
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