CN105624381B - A kind of heat treatment method of precipitation-hardening Blade Steel - Google Patents
A kind of heat treatment method of precipitation-hardening Blade Steel Download PDFInfo
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- CN105624381B CN105624381B CN201511018569.1A CN201511018569A CN105624381B CN 105624381 B CN105624381 B CN 105624381B CN 201511018569 A CN201511018569 A CN 201511018569A CN 105624381 B CN105624381 B CN 105624381B
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- heat treatment
- precipitation
- temperature
- treatment method
- blade steel
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Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys
Abstract
The invention discloses a kind of heat treatment method of precipitation-hardening Blade Steel.It comprises the following steps：(1) precipitation-hardening Blade Steel is subjected to medium temperature heating at 800~950 DEG C, and keeps the temperature 1~3h；(2) after coming out of the stove, the precipitation-hardening Blade Steel is placed on mould and carries out thermal recalibration；(3) ageing treatment, comes out of the stove air-cooled.The heat treatment method removes solution treatment, and processing is optimized to medium temperature heating and the temperature and time of ageing treatment, solve the problems, such as secondary solution treatment heat treatment cause to deform it is big, using the heat treatment method be made forging deform it is small, size qualification, excellent performance.
Description
Technical field
The present invention relates to turbine blade technical field of hot working, more particularly to a kind of precipitation-hardening blade Heat-Treatment of Steel side
Method.
Background technology
Precipitation-hardening stainless steel has to compare in turbine blade heavy forging field to be widely applied, and the problem on deformation of forging is
One big difficult point of flat heavy forging manufacture.For example deformation cold sizing can not be realized after the heat treatment of part forging, usually reprocess heat treatment
Method is to repeat to be heat-treated：Solid solution+medium temperature adjustment+cold sizing+timeliness.It is secondary since solid solubility temperature is higher (990~1050 DEG C)
Deform larger after heat treatment, cause the thing of product rejection to happen occasionally.
The content of the invention
In view of this, the present invention provides a kind of heat treatment method of precipitation-hardening Blade Steel, which effectively solves
Secondary solution treatment of having determined heat treatment causes to deform the problem of big, and forging, which is made, using the heat treatment method deforms small, size qualification, property
Can be excellent.
A kind of heat treatment method of precipitation-hardening Blade Steel, comprises the following steps：
(1) precipitation-hardening Blade Steel is subjected to medium temperature heating at 800~950 DEG C, and keeps the temperature 1~3h；
(2) after coming out of the stove, the precipitation-hardening Blade Steel is placed on mould and carries out thermal recalibration；
(3) ageing treatment, comes out of the stove air-cooled.
Preferably, step (1) the medium temperature heating-up temperature is 800~850 DEG C.
Preferably, soaking time is 2~3h in the step (1).
Preferably, aging temperature described in the step (3) is 500~630 DEG C, keeps the temperature 3~6h.Further preferably
Aging temperature is 550~630 DEG C, keeps the temperature 4~5h.
Beneficial effects of the present invention：The heat treatment method removes solution treatment, and to the temperature of medium temperature heating and ageing treatment
Degree and the time optimize processing, solve the problems, such as secondary solution treatment be heat-treated cause to deform it is big, using the heat treatment side
Legal system obtains forging and deforms small, size qualification, excellent performance.
Embodiment
Further illustrate technical scheme in conjunction with the embodiments separately below.
Embodiment 1
It is the 600 progress shove charges of 0Cr17Ni4Cu4Nb precipitation-hardenings Blade Steel by component, is warming up to 850 DEG C of progress medium temperatures
Heating, and 2h is kept the temperature, thermal recalibration is carried out after coming out of the stove on corresponding mould, ageing treatment is carried out at 570 DEG C, and 6h is kept the temperature,
Come out of the stove air-cooled, forging is made.
Embodiment 2
It is the 500 progress shove charges of 0Cr17Ni4Cu4Nb precipitation-hardenings Blade Steel by component, is warming up to 800 DEG C of progress medium temperatures
Heating, and 3h is kept the temperature, thermal recalibration is carried out after coming out of the stove on corresponding mould, ageing treatment is carried out at 500 DEG C, and 5h is kept the temperature,
Come out of the stove air-cooled, forging is made.
Embodiment 3
It is the 600 progress shove charges of X4CrNiCuMo14-5 precipitation-hardenings Blade Steel by component, is warming up to 900 DEG C of progress medium temperatures
Heating, and 2h is kept the temperature, thermal recalibration is carried out after coming out of the stove on corresponding mould, ageing treatment is carried out at 600 DEG C, and 4h is kept the temperature,
Come out of the stove air-cooled, forging is made.
Embodiment 4
It is the 600 progress shove charges of X4CrNiCuMo14-5 precipitation-hardenings Blade Steel by component, is warming up to 950 DEG C of progress medium temperatures
Heating, and 1h is kept the temperature, thermal recalibration is carried out after coming out of the stove on corresponding mould, ageing treatment is carried out at 550 DEG C, and 3h is kept the temperature,
Come out of the stove air-cooled, forging is made.
Comparative example 1
Compared with Example 1, comparative example 1 increases solution treatment before heat-treated under medium temperature, other all identical.
Comparative example 2
Compared with Example 2, comparative example 2 increases solution treatment before heat-treated under medium temperature, other all identical.
Comparative example 3
Compared with Example 3, comparative example 3 increases solution treatment before heat-treated under medium temperature, other all identical.
Comparative example 4
Compared with Example 4, comparative example 4 increases solution treatment before heat-treated under medium temperature, other all identical.
The forging that is obtained in embodiment 1~4 is carried out using test method generally in the art tensile strength Rm (MPa),
Yield strength RP0.2 (MPa), elongation percentage A (%) and contraction percentage of area Z (%) measure, measurement result are as follows：
The heat treatment method solve the problems, such as secondary solution treatment heat treatment cause to deform it is big, using the heat treatment method
Forging is made and deforms small, size qualification, excellent performance.
It should be noted that and understand, do not departing from the spirit and scope of appended claims the present invention for required protection
In the case of, various modifications and improvements can be made to the present invention of foregoing detailed description.It is therefore desirable to the technical solution of protection
Scope from given any specific exemplary teachings limitation.
Applicant states that the present invention illustrates the detailed process equipment of the present invention and technological process by above-described embodiment,
But the invention is not limited in above-mentioned detailed process equipment and technological process, that is, it is above-mentioned detailed not mean that the present invention has to rely on
Process equipment and technological process could be implemented.Person of ordinary skill in the field it will be clearly understood that any improvement in the present invention,
The addition of equivalence replacement and auxiliary element to each raw material of product of the present invention, selection of concrete mode etc., all fall within the present invention's
Within protection domain and the open scope.
Claims (5)
1. a kind of heat treatment method of precipitation-hardening Blade Steel, it is characterised in that comprise the steps of：
(1) precipitation-hardening Blade Steel is subjected to medium temperature heating at 800~950 DEG C, and keeps the temperature 1~3h；
(2) after coming out of the stove, the precipitation-hardening Blade Steel is placed on mould and carries out thermal recalibration；
(3) ageing treatment, comes out of the stove air-cooled；The aging temperature is 500~630 DEG C, keeps the temperature 3~6h.
2. heat treatment method according to claim 1, it is characterised in that step (1) the medium temperature heating-up temperature for 800~
850℃。
3. heat treatment method according to claim 1, it is characterised in that soaking time is 2~3h in the step (1).
4. heat treatment method according to claim 1, it is characterised in that aging temperature is 550 in the step (3)
~630 DEG C.
5. heat treatment method according to claim 1, it is characterised in that the step (3) keeps the temperature 4~5h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511018569.1A CN105624381B (en) | 2015-12-30 | 2015-12-30 | A kind of heat treatment method of precipitation-hardening Blade Steel |
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|---|---|---|---|
| CN201511018569.1A CN105624381B (en) | 2015-12-30 | 2015-12-30 | A kind of heat treatment method of precipitation-hardening Blade Steel |
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| Publication Number | Publication Date |
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| CN105624381A CN105624381A (en) | 2016-06-01 |
| CN105624381B true CN105624381B (en) | 2018-05-01 |
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| CN201511018569.1A Active CN105624381B (en) | 2015-12-30 | 2015-12-30 | A kind of heat treatment method of precipitation-hardening Blade Steel |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102994715A (en) * | 2012-11-26 | 2013-03-27 | 西安航空动力股份有限公司 | Method for controlling deformation of 0Cr17Ni4Cu4Nb material cast blade |
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2015
- 2015-12-30 CN CN201511018569.1A patent/CN105624381B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102994715A (en) * | 2012-11-26 | 2013-03-27 | 西安航空动力股份有限公司 | Method for controlling deformation of 0Cr17Ni4Cu4Nb material cast blade |
Non-Patent Citations (1)
| Title |
|---|
| 燃气轮机压气机叶片的热处理;金丽花等;《热处理》;20121231;第27卷(第1期);2热处理工艺流程及参数 * |
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| CN105624381A (en) | 2016-06-01 |
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