CN106222371A - A kind of heat resisting steel heat treatment method - Google Patents
A kind of heat resisting steel heat treatment method Download PDFInfo
- Publication number
- CN106222371A CN106222371A CN201610799039.3A CN201610799039A CN106222371A CN 106222371 A CN106222371 A CN 106222371A CN 201610799039 A CN201610799039 A CN 201610799039A CN 106222371 A CN106222371 A CN 106222371A
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- CN
- China
- Prior art keywords
- heat
- forging
- heat treatment
- treatment method
- air cooling
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Classifications
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- 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
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
The present invention relates to a kind of heat resisting steel heat treatment method, after martensite heat-resistant steel is forged, directly melt down and carry out Quenching Treatment, after quenching behind temperature≤100 DEG C of air cooling extremely whole forging, then carry out temper.The heat treatment method of the present invention, by during to martensite heat-resistant steel heat treatment, directly carries out quenched after forging, eliminate traditional annealing process, simplifies actual production flow process, substantially reduces the production cycle, saved the energy.
Description
Technical field
The present invention relates to the processed technical field of steel, particularly to the Technology for Heating Processing of steel.
Background technology
The processing method of martensite heat-resistant steel is to make annealing treatment after forging at present, carries out at quenched heat after annealing again
Reason.Owing to annealing temperature retention time is long, cooldown rate is little, and the production cycle is long, and the waste energy.
Summary of the invention
The problems referred to above existed for the heat treatment method of existing heat resisting steel, applicant studies and improves, it is provided that one
Plant the heat resisting steel heat treatment method that heat treatment flow process is simple, with short production cycle, energy consumption is low.
In order to solve the problems referred to above, the present invention uses following scheme:
A kind of heat resisting steel heat treatment method, after being forged by martensite heat-resistant steel, directly melts down and carries out Quenching Treatment, after quenching
Behind temperature≤100 DEG C of air cooling extremely whole forging, then carry out temper.
Further improvement as technique scheme:
After martensite heat-resistant steel forging, final forging temperature is 850 DEG C-900 DEG C, melts down and be heated to 1040-1080 after forging molding
DEG C hardening heat, after being incubated 1-4 hour, air cooling is to after≤100 DEG C, is heated to the temperature of 700-780 DEG C, is incubated 4-20h
Rear air cooling is to room temperature.
The method have technical effect that:
The heat treatment method of the present invention, during to martensite heat-resistant steel heat treatment, directly carries out quenched, eliminates tradition after forging
Annealing process, simplify actual production flow process, substantially reduce the production cycle, saved the energy.
Detailed description of the invention
Below the detailed description of the invention of the present invention is described further.
The heat resisting steel heat treatment method of the present embodiment, after being forged by martensite heat-resistant steel, directly melts down and carries out Quenching Treatment,
After quenching behind temperature≤100 DEG C of air cooling extremely whole forging, then carry out temper.
After martensite heat-resistant steel forging, final forging temperature is 850 DEG C-900 DEG C, melts down and be heated to 1040-1080 after forging molding
DEG C hardening heat, after being incubated 1-4 hour, air cooling is to after≤100 DEG C, is heated to the temperature of 700-780 DEG C, tempering insulation
Time sets according to the wall thickness of forging, and after general insulation 4-20h, air cooling is to room temperature.
With material as F91, as a example by the forging of a size of Φ 600/ Φ 400*100, the process of heat treatment is: finish-forging temperature after forging
Degree is for 850-900 DEG C, and after forging molding, direct quenching processes, and i.e. melts down and is heated to 1050 DEG C of insulation 2h, air cooling after insulation 2h；Empty
It is cooled to about 80 DEG C；Air cooling, to after about 80 DEG C, carries out temper, is i.e. heated to 740 DEG C of insulation 8h；After insulation 8h, air cooling is to room
Temperature.The physicochemical property parameter of the heat resisting steel after heat treatment is as shown in table 1.
Performance parameter after table 1 martensite heat-resistant steel heat treatment
Embodiment provided above is the better embodiment of the present invention, is only used for the convenient explanation present invention, not to this
Bright make any pro forma restriction, any art has usually intellectual, if without departing from the carried skill of the present invention
In the range of art feature, utilize the Equivalent embodiments that the done local of disclosed technology contents is changed or modified, and
Without departing from the technical characteristic content of the present invention, all still fall within the range of the technology of the present invention feature.
Claims (2)
1. a heat resisting steel heat treatment method, it is characterised in that: after martensite heat-resistant steel is forged, directly melt down and carry out at quenching
Reason, after quenching behind temperature≤100 DEG C of air cooling extremely whole forging, then carries out temper.
Heat resisting steel heat treatment method the most according to claim 1, it is characterised in that: finish-forging temperature after martensite heat-resistant steel forging
Degree is 850 DEG C-900 DEG C, melts down the hardening heat being heated to 1040-1080 DEG C after forging molding, and after being incubated 1-4 hour, air cooling is extremely
After≤100 DEG C, being heated to the temperature of 700-780 DEG C, after insulation 4-20h, air cooling is to room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610799039.3A CN106222371A (en) | 2016-08-31 | 2016-08-31 | A kind of heat resisting steel heat treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610799039.3A CN106222371A (en) | 2016-08-31 | 2016-08-31 | A kind of heat resisting steel heat treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106222371A true CN106222371A (en) | 2016-12-14 |
Family
ID=58075156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610799039.3A Pending CN106222371A (en) | 2016-08-31 | 2016-08-31 | A kind of heat resisting steel heat treatment method |
Country Status (1)
| Country | Link |
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| CN (1) | CN106222371A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012140666A (en) * | 2010-12-28 | 2012-07-26 | Toshiba Corp | Forging heat resistant steel, manufacturing method thereof, forged parts and manufacturing method thereof |
| CN102851610A (en) * | 2012-07-27 | 2013-01-02 | 中国科学院合肥物质科学研究院 | Improved structural material martensite heat-resistant steel and manufacture method thereof |
| CN103194692A (en) * | 2013-04-25 | 2013-07-10 | 北京科技大学 | Martensitic steel for supercritical water reactor and preparation method thereof |
| CN103740913A (en) * | 2014-01-10 | 2014-04-23 | 隆英（上海）企业有限公司 | High-temperature forged martensitic stainless steel heat treatment method |
| CN105112624A (en) * | 2015-09-24 | 2015-12-02 | 无锡宝露重工有限公司 | Heat treatment process of steel forgings |
-
2016
- 2016-08-31 CN CN201610799039.3A patent/CN106222371A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012140666A (en) * | 2010-12-28 | 2012-07-26 | Toshiba Corp | Forging heat resistant steel, manufacturing method thereof, forged parts and manufacturing method thereof |
| CN103602919A (en) * | 2010-12-28 | 2014-02-26 | 株式会社东芝 | Forging heat resistant steel, manufacturing method thereof, forged parts and manufacturing method thereof |
| CN102851610A (en) * | 2012-07-27 | 2013-01-02 | 中国科学院合肥物质科学研究院 | Improved structural material martensite heat-resistant steel and manufacture method thereof |
| CN103194692A (en) * | 2013-04-25 | 2013-07-10 | 北京科技大学 | Martensitic steel for supercritical water reactor and preparation method thereof |
| CN103740913A (en) * | 2014-01-10 | 2014-04-23 | 隆英（上海）企业有限公司 | High-temperature forged martensitic stainless steel heat treatment method |
| CN105112624A (en) * | 2015-09-24 | 2015-12-02 | 无锡宝露重工有限公司 | Heat treatment process of steel forgings |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161214 |
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| RJ01 | Rejection of invention patent application after publication |