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Sufficient solid solution and sufficient cooling 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 long heating time, poor heating reliability of heat treatment equipment, low qualified product rate, etc. Production requirements, the effect of improving heat treatment efficiency

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 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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  • Sufficient solid solution and sufficient cooling aging composite heat treatment method
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  • Sufficient solid solution and sufficient cooling aging composite heat treatment method

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Embodiment Construction

[0049] In order to make the purpose, content and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings of the embodiments.

[0050] In the present invention, a composite heat treatment method of sufficient solid solution and sufficient cooling and aging, said method includes "a sufficient solid solution heat treatment method" and "a sufficient cooling and aging heat treatment method" to continuously use "a sufficient solid solution heat treatment method" composed of Solid solution and sufficient cooling and aging composite heat treatment method”; the process of the method is: firstly carry out the first part of full solution heat treatment, and finally carry out the second part of full cooling and aging heat treatment continuously. The first part of the full solution heat treatment process: relying on the first part of the full solution hea...

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Abstract

The invention provides a sufficient solid solution and sufficient cooling aging composite heat treatment method. The method comprises a sufficient solid solution heat treatment process and a sufficient cooling and aging composite heat treatment process. According to the scheme, the specific heat treatment technical problems of'one-long-one-high three-difference five-low 'of existing austenitic stainless steel heat treatment, such as poor quality stability, low qualified 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, can be solved.

Description

technical field [0001] The invention relates to the technical field of material heat treatment, in particular to a composite heat treatment method of sufficient solid solution and sufficient cooling and 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 treatment. Amplitude increases mater...

Claims

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Application Information

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IPC IPC(8): C21D1/78C21D6/02C21D11/00
CPCC21D1/78C21D6/02C21D11/00C21D2211/001
Inventor 李志广王东军杨俊伟王晓霞白泽兵孔冰
Owner 山西柴油机工业有限责任公司
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