CN108265161A - The heat treatment method of Thin Specs quenching and tempering type 12MnNiVR steel plates - Google Patents
The heat treatment method of Thin Specs quenching and tempering type 12MnNiVR steel plates Download PDFInfo
- Publication number
- CN108265161A CN108265161A CN201810143184.5A CN201810143184A CN108265161A CN 108265161 A CN108265161 A CN 108265161A CN 201810143184 A CN201810143184 A CN 201810143184A CN 108265161 A CN108265161 A CN 108265161A
- Authority
- CN
- China
- Prior art keywords
- quenching
- tempering
- steel plate
- heat treatment
- stove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/001—Heat treatment of ferrous alloys containing Ni
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/005—Heat treatment of ferrous alloys containing Mn
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
-
- 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
- C21D2211/002—Bainite
-
- 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
- C21D2211/005—Ferrite
Landscapes
- 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 Articles (AREA)
Abstract
The invention discloses a kind of heat treatment methods of Thin Specs quenching and tempering type 12MnNiVR steel plates, use the modulation process of quenching+tempering, the quenching technical：Hardening heat be AC3+ (10~30) DEG C, total heating time PLC+ (15~30) min, water cooling of coming out of the stove to room temperature；The tempering process：Temperature is 630~650 DEG C, and total 3.5~5.0min/mm of heating time comes out of the stove and is air-cooled to room temperature.The present invention selects the lower hardening heat of more conventional hardening heat, in addition suitable tempering process, steel plate is made to obtain tempering bainite+ferritic structure of proper proportion, grain size reaches 7.5 grades~9.5 grades, even tissue, crystal grain refinement, and armor plate strength is moderate, plasticity and toughness are excellent, steel plate elongation percentage reaches more than 17%, and 20 DEG C of side knock work(reach more than 150J, meets standard requirement and the requirement of crude oil storage tank steel plate.
Description
Technical field
The present invention relates to a kind of heat treatment method of steel plate, especially a kind of heat of Thin Specs quenching and tempering type 12MnNiVR steel plates
Processing method.
Background technology
With the development of petroleum chemical industry, energy reserves becomes the strategy and policy of country, and crude oil storage tank is built to obtain
Sustainable development.12MnNiVR steel plates are widely used as the main steel grade for preparing crude oil storage tank.But for thickness≤
The Thin Specs 12MnNiVR steel plates of 18mm, in actual production, because its thickness is thin, easily through hardening, through thickness forms hard phase bayesian
Body is difficult to match so as to cause its intensity with plasticity and toughness, occurs that steel plate elongation percentage is relatively low or the relatively low phenomenon of ballistic work.Therefore, it seeks
Rational quenching-and-tempering process is sought, to realize steel plate while high intensity, there is good plasticity and impact flexibility, is former
The technical issues of oil tank steel plate is urgently to be resolved hurrily.
Invention content
The technical problem to be solved in the present invention is to provide a kind of excellent Thin Specs quenching and tempering type 12MnNiVR steel of properties of product
The heat treatment method of plate.
In order to solve the above technical problems, the technical solution used in the present invention is：Using the modulation process of quenching+tempering,
The quenching technical：Hardening heat is AC3+ (10~30) DEG C, and total heating time PLC+ (15~30) min, water cooling of coming out of the stove is to normal
Temperature；
The tempering process：Temperature is 630~650 DEG C, total 3.5~5.0min/mm of heating time, comes out of the stove and is air-cooled to often
Temperature.
In quenching technical of the present invention, in quenching technical, using quenching press water-spraying control to room temperature, quenching press after coming out of the stove
Roller speed is 16~24m/min.
The thickness of steel plate of the present invention is 12~18mm.
The PLC is the simulation heating control system of Finite Dynamic Element.PLC+（15~30）Min, i.e., along steel plate length side
To randomly selecting seven points, after holding temperature as defined in the temperature of above-mentioned seven points reaches, start to calculate soaking time, 15
~30min is soaking time.
The present invention selects the lower hardening heat of more conventional hardening heat, in addition suitable tempering process, gained steel plate are
Tempering bainite+ferritic structure, wherein tempering bainite account for 80~90%, and grain size reaches 7.5 grades~9.5 grades, and tissue is equal
Even, crystal grain refinement, armor plate strength is moderate, and plasticity and toughness are excellent, and steel plate elongation percentage reaches more than 17%, and -20 DEG C of side knock work(reach
More than 150J meets standard requirement and the requirement of crude oil storage tank steel plate.
The present invention has the characteristics that process is simple, product quality is stable, batch production can be achieved.
Description of the drawings
The invention will now be described in further detail with reference to the accompanying drawings：
Fig. 1 is the metallographic structure figure of 1 steel plate of embodiment；
Fig. 2 is the metallographic structure figure of 3 steel plate of embodiment；
Fig. 3 is the metallographic structure figure of 5 steel plate of embodiment.
Specific embodiment
With reference to example specific embodiment, the present invention is described in further detail.
Embodiment 1：
The thickness of the present embodiment 12MnNiVR steel plates is 12mm.
（1）Quenching technical：AC3+15 DEG C of holding temperature, total heating time PLC+15min, soaking time 15min, steel plate go out
Quenching press water-spraying control after stove, roller speed are 24m/min, and steel plate is cooled to room temperature.
（2）Tempering process：650 DEG C of temperature, total heating time 5.0min/mm, comes out of the stove and is air-cooled to room temperature.
The steel plate grain size of the present embodiment after heat treatment is 9.5 grades, and metallographic structure is tempering bainite+ferrite,
Wherein tempering bainite accounts for 90%, and mechanical property is shown in Table 1.
Embodiment 2：
The thickness of the present embodiment 12MnNiVR steel plates is 14mm.
（1）Quenching technical：AC3+10 DEG C of holding temperature, total heating time PLC+20min, soaking time 20min, steel plate go out
Quenching press water-spraying control after stove, roller speed are 22m/min, and steel plate is cooled to room temperature.
（2）Tempering process：650 DEG C of temperature, total heating time 4.5min/mm, comes out of the stove and is air-cooled to room temperature.
The steel plate grain size of the present embodiment after heat treatment is 9.0 grades, and metallographic structure is tempering bainite+ferrite,
Wherein tempering bainite accounts for 87%, and mechanical property is shown in Table 1.
Embodiment 3：
The thickness of the present embodiment 12MnNiVR steel plates is 15mm.
（1）Quenching technical：AC3+20 DEG C of holding temperature, total heating time PLC+20min, soaking time 20min, steel plate go out
Quenching press water-spraying control after stove, roller speed are 20m/min, and steel plate is cooled to room temperature.
（2）Tempering process：640 DEG C of temperature, total heating time 4.0min/mm, comes out of the stove and is air-cooled to room temperature.
The steel plate grain size of the present embodiment after heat treatment is 9.0 grades, and metallographic structure is tempering bainite+ferrite,
Wherein tempering bainite accounts for 86%, and mechanical property is shown in Table 1.
Embodiment 4：
The thickness of the present embodiment 12MnNiVR steel plates is 16mm.
（1）Quenching technical：AC3+30 DEG C of holding temperature, total heating time PLC+25min, soaking time 25min, steel plate go out
Quenching press water-spraying control after stove, roller speed are 18m/min, and steel plate is cooled to room temperature.
（2）Tempering process：635 DEG C of temperature, total heating time 4.0min/mm, comes out of the stove and is air-cooled to room temperature.
The steel plate grain size of the present embodiment after heat treatment is 8.5 grades, and metallographic structure is tempering bainite+ferrite,
Wherein tempering bainite accounts for 87%, and mechanical property is shown in Table 1.
Embodiment 5：
The thickness of the present embodiment 12MnNiVR steel plates is 18mm.
（1）Quenching technical：AC3+30 DEG C of holding temperature, total heating time PLC+30min, soaking time 30min, steel plate go out
Quenching press water-spraying control after stove, roller speed are 16m/min, and steel plate is cooled to room temperature.
（2）Tempering process：630 DEG C of temperature, total heating time 3.5min/mm, comes out of the stove and is air-cooled to room temperature.
The steel plate grain size of the present embodiment after heat treatment is 7.5 grades, and metallographic structure is tempering bainite+ferrite,
Wherein tempering bainite accounts for 80%, and mechanical property is shown in Table 1.
Embodiment 6：
The thickness of the present embodiment 12MnNiVR steel plates is 13mm.
（1）Quenching technical：AC3+15 DEG C of holding temperature, total heating time PLC+25min, soaking time 25min, steel plate go out
Quenching press water-spraying control after stove, roller speed are 16m/min, and steel plate is cooled to room temperature.
（2）Tempering process：645 DEG C of temperature, total heating time 4.5min/mm, comes out of the stove and is air-cooled to room temperature.
The steel plate grain size of the present embodiment after heat treatment is 9.5 grades, and metallographic structure is tempering bainite+ferrite,
Wherein tempering bainite accounts for 88%, and mechanical property is shown in Table 1.
Embodiment 7：
The thickness of the present embodiment 12MnNiVR steel plates is 17mm.
（1）Quenching technical：AC3+25 DEG C of holding temperature, total heating time PLC+15min, soaking time 15min, steel plate go out
Quenching press water-spraying control after stove, roller speed are 23m/min, and steel plate is cooled to room temperature.
（2）Tempering process：630 DEG C of temperature, total heating time 5.0min/mm, comes out of the stove and is air-cooled to room temperature.
The steel plate grain size of the present embodiment after heat treatment is 8.0 grades, and metallographic structure is tempering bainite+ferrite,
Wherein tempering bainite accounts for 84%, and mechanical property is shown in Table 1.
The mechanical property of the 12MnNiVR steel plates of table 1. after heat treatment
Result of implementation proves：The technique productions that the present invention is combined using quenching+tempering, gained steel plate comprehensive performance is good, steel
Plate intensity and plasticity and toughness matching are good, and stable quality is, it can be achieved that mass production.
Claims (4)
1. a kind of heat treatment method of Thin Specs quenching and tempering type 12MnNiVR steel plates uses the modulation process of quenching+tempering, special
Sign is, the quenching technical：Hardening heat be AC3+ (10~30) DEG C, total heating time PLC+ (15~30) min, water of coming out of the stove
It is cooled to room temperature；
The tempering process：Temperature is 630~650 DEG C, total 3.5~5.0min/mm of heating time, comes out of the stove and is air-cooled to often
Temperature.
2. the heat treatment method of Thin Specs quenching and tempering type 12MnNiVR steel plates according to claim 1, it is characterised in that：It is described
In quenching technical, using quenching press water-spraying control to room temperature after coming out of the stove.
3. the heat treatment method of Thin Specs quenching and tempering type 12MnNiVR steel plates according to claim 2, it is characterised in that：It is described
Quenching press roller speed is 16~24m/min.
4. the heat treatment method of the Thin Specs quenching and tempering type 12MnNiVR steel plates according to claim 1-3 any one, special
Sign is：The thickness of the steel plate is 12~18mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810143184.5A CN108265161A (en) | 2018-02-11 | 2018-02-11 | The heat treatment method of Thin Specs quenching and tempering type 12MnNiVR steel plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810143184.5A CN108265161A (en) | 2018-02-11 | 2018-02-11 | The heat treatment method of Thin Specs quenching and tempering type 12MnNiVR steel plates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108265161A true CN108265161A (en) | 2018-07-10 |
Family
ID=62774011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810143184.5A Pending CN108265161A (en) | 2018-02-11 | 2018-02-11 | The heat treatment method of Thin Specs quenching and tempering type 12MnNiVR steel plates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108265161A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111041163A (en) * | 2019-12-23 | 2020-04-21 | 舞阳钢铁有限责任公司 | Heat treatment method of thin-gauge quenched and tempered 07MnNiMoDR steel plate |
| CN111074042A (en) * | 2019-12-25 | 2020-04-28 | 舞阳钢铁有限责任公司 | Quenching and tempering heat treatment method for large-thickness ultra-wide 07MnMoVR steel plate |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102277528A (en) * | 2010-06-08 | 2011-12-14 | 宝山钢铁股份有限公司 | High-strength quenched and tempered steel and its manufacturing method |
| CN103643012A (en) * | 2013-12-19 | 2014-03-19 | 马钢(集团)控股有限公司 | Enhanced heat treatment testing method for steel |
| CN103820731A (en) * | 2014-03-03 | 2014-05-28 | 莱芜钢铁集团有限公司 | Ultra-thin broad-width wear-resistant steel plate and method for producing steel plate in large compression ratio |
| CN105908084A (en) * | 2016-06-14 | 2016-08-31 | 舞阳钢铁有限责任公司 | Tempering type high-strength steel plate for low-temperature container and production method for tempering type high-strength steel plate |
| CN106133180A (en) * | 2014-03-31 | 2016-11-16 | 新日铁住金株式会社 | Drop stamping steel |
| CN106591718A (en) * | 2016-12-02 | 2017-04-26 | 舞阳钢铁有限责任公司 | High-toughness antiacid quenched and tempered pipe steel plate with yield strength being 420 MPa grade and production method |
-
2018
- 2018-02-11 CN CN201810143184.5A patent/CN108265161A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102277528A (en) * | 2010-06-08 | 2011-12-14 | 宝山钢铁股份有限公司 | High-strength quenched and tempered steel and its manufacturing method |
| CN103643012A (en) * | 2013-12-19 | 2014-03-19 | 马钢(集团)控股有限公司 | Enhanced heat treatment testing method for steel |
| CN103820731A (en) * | 2014-03-03 | 2014-05-28 | 莱芜钢铁集团有限公司 | Ultra-thin broad-width wear-resistant steel plate and method for producing steel plate in large compression ratio |
| CN106133180A (en) * | 2014-03-31 | 2016-11-16 | 新日铁住金株式会社 | Drop stamping steel |
| CN105908084A (en) * | 2016-06-14 | 2016-08-31 | 舞阳钢铁有限责任公司 | Tempering type high-strength steel plate for low-temperature container and production method for tempering type high-strength steel plate |
| CN106591718A (en) * | 2016-12-02 | 2017-04-26 | 舞阳钢铁有限责任公司 | High-toughness antiacid quenched and tempered pipe steel plate with yield strength being 420 MPa grade and production method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111041163A (en) * | 2019-12-23 | 2020-04-21 | 舞阳钢铁有限责任公司 | Heat treatment method of thin-gauge quenched and tempered 07MnNiMoDR steel plate |
| CN111074042A (en) * | 2019-12-25 | 2020-04-28 | 舞阳钢铁有限责任公司 | Quenching and tempering heat treatment method for large-thickness ultra-wide 07MnMoVR steel plate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105177259B (en) | A kind of method for rapidly promoting deformation induced martensite transfor mation | |
| JPS61127815A (en) | Production of high arrest steel containing ni | |
| CN103014497B (en) | Production method of pipeline steel plate with excellent impact toughness | |
| CN101906569A (en) | Anti-large-deformation pipe line steel prepared by thermal treatment method and preparation method thereof | |
| CN102409223A (en) | Low yield ratio hot-rolled pickled plate and production method thereof | |
| CN105177411A (en) | Boracic cold-rolled enamel steel suitable for continuous annealing production and manufacturing method of boracic cold-rolled enamel steel | |
| CN113186373B (en) | A kind of preparation method of ultra-high-strength ultra-fine grain steel plate | |
| CN105543705A (en) | Manufacturing method for large-strain-resistant corrosion-resistant seamless line pipe for marine environment R-Lay laying | |
| CN108315670A (en) | The special thickness P355NH steel plates of the good high-ductility of weldability and its production method | |
| CN101805819B (en) | Hardening and tempering method of thick steel plates for pressure container | |
| CN106086639A (en) | A kind of superelevation strong steel for engineering machinery Q960D and production method thereof | |
| CN108396227A (en) | Continuous casting billet is become a useful person A387Gr11Cl2 steel plates and its production method | |
| CN108265161A (en) | The heat treatment method of Thin Specs quenching and tempering type 12MnNiVR steel plates | |
| CN101831594B (en) | Method for manufacturing high-strength steel plate used in low-temperature environment | |
| CN107988548B (en) | X80 pipeline steel plate adapting to low-temperature exposed environment and production method thereof | |
| CN112899441A (en) | Heat treatment process of duplex stainless steel composite board | |
| CN105695898A (en) | X70Q hot-rolled thick plate for floating LNG pipeline and production method thereof | |
| CN103215418A (en) | Thermal treatment method for super-thick steel plate | |
| CN102002558B (en) | Step quenching-distribution heat treatment technology of steels containing carbide formation inhibiting elements | |
| CN112831721B (en) | A kind of additive manufacturing ultra-high-strength plastic product steel material and preparation method thereof | |
| CN1031467C (en) | A process for reforming waste rolls | |
| CN103276179A (en) | Manufacturing method for pipe line steel with characteristics of high steel plasticity and double peak grain distribution | |
| CN109837367B (en) | Heat treatment process for refining M-A island in granular bainite structure of low-carbon low-alloy steel | |
| CN103710497B (en) | Thermal treatment process for controlling contraction of common normal line of high-alloy carburizing steel quenching gear | |
| CN108486471A (en) | Pressure vessel normalizing type A537Cl1 steel plates and its production method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180710 |