Sufficient solid solution and sufficient heating aging composite heat treatment method

A composite heat treatment and solution heat treatment technology, applied in heat treatment equipment, heat treatment process control, manufacturing tools, etc., can solve the problems of poor heating reliability, poor quality stability, and long heating time of heat treatment equipment, so as to maximize the furnace capacity. and mass production requirements, reduce the total solution and aging holding time, and improve the effect of heat treatment efficiency

Pending Publication Date: 2022-04-29
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 heating aging composite heat treatment method
  • Sufficient solid solution and sufficient heating aging composite heat treatment method
  • Sufficient solid solution and sufficient heating aging composite heat treatment method

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[0049] In order to make the object, content and advantages of the present invention clearer, below in conjunction with embodiment accompanying drawing (referring to figure 1 with figure 2 Shown), the specific embodiment of the present invention is further described in detail.

[0050] In the present invention, a method of composite heat treatment with sufficient solid solution and sufficient temperature rise and aging, said method includes "a sufficient solution heat treatment method" and "a sufficient temperature rise and aging heat treatment method" to continuously use "a sufficient solution heat treatment method" composed of Solid solution and full temperature-rising aging composite heat treatment method”; the process of the method is as follows: firstly, the first part of full solution heat treatment is carried out, and finally the second part of full temperature-rising aging heat treatment is continuously carried out. The first part of the full solution heat treatment p...

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Abstract

The invention provides a sufficient solid solution and sufficient heating aging composite heat treatment method. The method comprises a sufficient solid solution heat treatment process and a sufficient heating 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 temperature rise 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 increa...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D6/02C21D1/78C21D11/00
CPCC21D6/02C21D1/78C21D11/00C21D2211/001
Inventor 李志广吉海叶靳峰杨姝青马强钟国栋
Owner 山西柴油机工业有限责任公司
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