CN102407234A - Method for producing high nickel-chromium alloy steel plate - Google Patents
Method for producing high nickel-chromium alloy steel plate Download PDFInfo
- Publication number
- CN102407234A CN102407234A CN2010102917784A CN201010291778A CN102407234A CN 102407234 A CN102407234 A CN 102407234A CN 2010102917784 A CN2010102917784 A CN 2010102917784A CN 201010291778 A CN201010291778 A CN 201010291778A CN 102407234 A CN102407234 A CN 102407234A
- Authority
- CN
- China
- Prior art keywords
- steel plate
- temperature
- high nickel
- alloy steel
- hot rolling
- 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
Abstract
The invention provides a method for producing a high nickel-chromium alloy steel plate. The initial rolling temperature of hot rolling is between 1,100 and 1,200 DEG C, the final rolling temperature is between 1,050 and 950 DEG C, the initial cooling temperature is between 1,000 and 900 DEG C, and the self-tempering temperature is between 650 and 550 DEG C; the hot-rolled steel plate is quickly cooled at a rate of 80 to 100 DEG C/s by a laminar flow quick cooling device in a high temperature state; and the tempering temperature is between 680 and 660 DEG C, and a metallographic structure becomes a tempered martensite structure required by a hardened and tempered steel plate. The method is simple and practicable and is convenient to master and operate; the surface quality of the steel plate is obviously improved, and waste products are avoided; the process path is shortened, and production efficiency can be improved by 30 percent; production cost is reduced, a one-time quenching heating process is eliminated, and cost can be saved by 600 yuan for each ton of steel plates; and yield is high, and first pass yield reaches 93.55 percent.
Description
Technical field
The invention belongs to the steel rolling process technical field, the production method of the high nickel-chrome alloy steel plate of particularly a kind of hot rolling.
Background technology
In thick (thickness is not less than 28mm) high nickel chromium triangle (Ni >=2.50%, Cr >=0.80%) alloy-steel plate be main force's steel grade of warship hull steel, according to manufacturing technique requirent, high nickel-chrome alloy steel plate must add the state delivery of tempering with quenching.Therefore, the domestic Heavy Plate Production producer production technology path of generally taking is: hot rolling-annealing-quenching-tempering.
The problem that above-mentioned process exists is:
1, complex manufacturing, operation is various, and processing and time of delivery are long.
2, steel plate can produce blemish in through the heat-treatment furnace quenching process, and percent defective is increased.
3, in heat treatment especially quenching process, energy resource consumption is big, has greatly increased production cost.
Simultaneously, existing generic alloy-steel plate also all adopts to quench and adds the heat treatment mode of tempering.
Summary of the invention
The object of the invention is exactly in order to overcome above-mentioned defective, and then provides a kind of simple, is convenient to operation, and processing route is short, and production efficiency is high, can improve plate surface quality, reduces loss due to spoiled work, the production method of the high nickel-chrome alloy steel plate that reduces production costs.
For reaching this purpose, the present invention has taked following technical scheme: a kind of production method of high nickel-chrome alloy steel plate, and the chemical composition of said high nickel-chrome alloy steel plate and weight percent content are: C 0.06～0.15%; Si0.16～0.39%, Mn 0.30～0.70%, S≤0.02; P≤0.02, Ni 2.50～2.90%, and Cr 0.80～1.30%; Mo 0.21～0.26%, and V 0.03～0.11%, and surplus is Fe and impurity.
Its concrete production technology path is:
Hot rolling-laminar flow cooling-temper.
Concrete grammar and technological parameter are:
Temperature control: start rolling temperature is 1100～1200 ℃, and finishing temperature is 1050～950 ℃; Press quenching: beginning to cool down temperature is 1000～900 ℃, and returning red temperature is 650～550 ℃; After the hot rolling, steel plate utilizes the laminar flow fast cooling device to carry out press quenching with the cooling velocity of 80～100 ℃/s under the condition of high temperature, and steel plate is cooled off fast.What is called is returned red temperature and is meant surely after the steel plate water-cooled, because there are temperature difference in surface and heart portion, heart portion is approximate consistent with surface temperature after waiting for a period of time, and the temperature of this moment is returning red temperature.
Temper: temperature is 680～660 ℃, makes metallographic structure reach the tempered martensite of hardened and tempered steel plate requirement.
Beneficial effect of the present invention is:
1, plate surface quality obviously improves, and has stopped the generation of waste product.
2, processing route shortens, and the steel plate line duration is short, can enhance productivity 30%.
3, reduced production process, reduced production costs, cancelled primary quenching heating process, cost-saved 600 yuan of steel plate per ton.
4, the steel plate structure property reaches standard code fully, and lumber recovery is high, and one time properties percent of pass reaches 93.55%.
Simultaneously, the inventive method is simple, is convenient to grasp and operation, need not any investment and just can stand and become effective.
The specific embodiment
Below, in conjunction with embodiment the present invention is specified.
Embodiment 1:
The chemical composition of high nickel-chrome alloy steel plate and weight percent content are: C 0.06%, Si0.30%, and Mn0.50%, S≤0.02, P≤0.02, Ni 2.50%, and Cr 1.30%, and Mo 0.25%, V0.10%, all the other are Fe and impurity.
Rolling the back finished product thickness is that the naval vessel of 30mm is with high nickel-chrome alloy steel plate.
The concrete production technology path of taking is: hot rolling-laminar flow cooling-temper.
Concrete grammar is:
Hot rolling: 1200 ℃ of start rolling temperatures, finishing temperature are 1050 ℃.
Press quenching: after the hot rolling, steel plate utilizes the laminar flow fast cooling device to carry out press quenching under the condition of high temperature.Beginning to cool down temperature is 1000 ℃, and cooling velocity is 90 ℃/s, and returning red temperature is 630 ℃.
Temper: temperature is 680 ℃, makes metallographic structure reach the tempered martensite of hardened and tempered steel plate requirement.
Embodiment 2:
The chemical composition of high nickel-chrome alloy steel plate and weight percent content are: C 0.15%, and Si 0.16%, Mn0.30%, and S≤0.02, P≤0.02, Ni 2.90%, Cr1.10%, Mo0.24%, V 0.08%, and surplus is Fe and impurity.
Rolling the back finished product thickness is that the naval vessel of 45mm is with high nickel-chrome alloy steel plate.
The concrete production technology path of taking is: hot rolling-laminar flow cooling-temper.
1100 ℃ of hot rolling start rolling temperatures, finishing temperature are 950 ℃.
After the hot rolling, steel plate utilizes the laminar flow fast cooling device to carry out press quenching under the condition of high temperature.Beginning to cool down temperature is 900 ℃, and cooling velocity is 80 ℃/s, and returning red temperature is 560 ℃.
The temperature of temper is 660 ℃, makes metallographic structure reach the tempered martensite of hardened and tempered steel plate requirement.
Embodiment 3:
The chemical composition of high nickel-chrome alloy steel plate and weight percent content are: C 0.10%, and Si 0.28%, Mn0.55%, and S≤0.02, P≤0.02, Ni 2.70%, Cr1.10%, Mo 0.23%, and V 0.08%, and surplus is Fe and impurity.
Rolling the back finished product thickness is that the naval vessel of 60mm is with high nickel-chrome alloy steel plate.
The concrete production technology path of taking is: hot rolling-laminar flow cooling-temper.
1150 ℃ of hot rolling start rolling temperatures, finishing temperature are 980 ℃.
After the hot rolling, utilize the laminar flow fast cooling device that steel plate is carried out press quenching.Beginning to cool down temperature is 950 ℃, and cooling velocity is 85 ℃/s, and returning red temperature is 600 ℃.
Temper: temperature is 670 ℃, makes metallographic structure reach the tempered martensite of hardened and tempered steel plate requirement.
Claims (1)
1. the production method of a high nickel-chrome alloy steel plate is characterized in that, concrete production technology path is: hot rolling-laminar flow cooling-temper;
Concrete grammar and technological parameter are:
Temperature control: start rolling temperature is 1100～1200 ℃, and finishing temperature is 1050～950 ℃;
Press quenching: beginning to cool down temperature is 1000～900 ℃, and returning red temperature is 650～550 ℃, and after the hot rolling, steel plate utilizes the laminar flow fast cooling device to carry out press quenching with the cooling velocity of 80～100 ℃/s under the condition of high temperature, and steel plate is cooled off fast;
Temper: temperature is 680～660 ℃, makes metallographic structure reach the tempered martensite of hardened and tempered steel plate requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102917784A CN102407234A (en) | 2010-09-26 | 2010-09-26 | Method for producing high nickel-chromium alloy steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102917784A CN102407234A (en) | 2010-09-26 | 2010-09-26 | Method for producing high nickel-chromium alloy steel plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102407234A true CN102407234A (en) | 2012-04-11 |
Family
ID=45909753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102917784A Pending CN102407234A (en) | 2010-09-26 | 2010-09-26 | Method for producing high nickel-chromium alloy steel plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102407234A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112496505A (en) * | 2020-10-23 | 2021-03-16 | 上海船舶工艺研究所(中国船舶工业集团公司第十一研究所) | Double-wire gas shielded welding method for high-strength steel medium plate for ship |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08283899A (en) * | 1995-04-12 | 1996-10-29 | Nippon Steel Corp | Steel plate reduced in anisotropy and having high toughness and high tensile strength and its production |
| JP2005307313A (en) * | 2004-04-23 | 2005-11-04 | Nippon Steel Corp | Method for producing steel plate excellent in earthquake-proof and weldability |
| JP2008266758A (en) * | 2007-04-25 | 2008-11-06 | Jfe Steel Kk | High tensile strength steel having excellent low temperature toughness and reduced strength anisotropy, and method for producing the same |
| CN101363101A (en) * | 2008-09-25 | 2009-02-11 | 舞阳钢铁有限责任公司 | Large thickness quenched high strength steel and production method thereof |
| CN101643887A (en) * | 2009-09-04 | 2010-02-10 | 南京钢铁股份有限公司 | Super-thick high-level boat plate steel and production process thereof |
| CN101705433A (en) * | 2009-09-29 | 2010-05-12 | 燕山大学 | 196 DEG C below zero ultralow-temperature quake-proof structural steel |
| CN101775559A (en) * | 2010-03-17 | 2010-07-14 | 北京科技大学 | Easily welded high-strength-and-toughness ship plate steel and production process |
-
2010
- 2010-09-26 CN CN2010102917784A patent/CN102407234A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08283899A (en) * | 1995-04-12 | 1996-10-29 | Nippon Steel Corp | Steel plate reduced in anisotropy and having high toughness and high tensile strength and its production |
| JP2005307313A (en) * | 2004-04-23 | 2005-11-04 | Nippon Steel Corp | Method for producing steel plate excellent in earthquake-proof and weldability |
| JP2008266758A (en) * | 2007-04-25 | 2008-11-06 | Jfe Steel Kk | High tensile strength steel having excellent low temperature toughness and reduced strength anisotropy, and method for producing the same |
| CN101363101A (en) * | 2008-09-25 | 2009-02-11 | 舞阳钢铁有限责任公司 | Large thickness quenched high strength steel and production method thereof |
| CN101643887A (en) * | 2009-09-04 | 2010-02-10 | 南京钢铁股份有限公司 | Super-thick high-level boat plate steel and production process thereof |
| CN101705433A (en) * | 2009-09-29 | 2010-05-12 | 燕山大学 | 196 DEG C below zero ultralow-temperature quake-proof structural steel |
| CN101775559A (en) * | 2010-03-17 | 2010-07-14 | 北京科技大学 | Easily welded high-strength-and-toughness ship plate steel and production process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112496505A (en) * | 2020-10-23 | 2021-03-16 | 上海船舶工艺研究所(中国船舶工业集团公司第十一研究所) | Double-wire gas shielded welding method for high-strength steel medium plate for ship |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100443201C (en) | Surface iron scale control method for middle sheet billet continuous casting and rolling steel plate | |
| CN101704026B (en) | Method for controlling pitting on surface of medium steel plate | |
| CN104525560B (en) | Effective control method of the 30mm cut deal pitted skins of straight carbon steel/Nb bearing steel 20 | |
| CN103397267A (en) | Cold roll for rolling lithium battery guard plate and manufacturing method thereof | |
| CN101649406A (en) | High-strength aluminium alloy plate and production method thereof | |
| CN102417959A (en) | Method for producing annealing-free hot rolling S50C plate and strip | |
| CN103352108A (en) | H13 molten steel cold and hot treatment process | |
| CN103911556A (en) | Hot work die steel material and preparation method thereof | |
| CN103484789A (en) | Steel bar for high-ductility and superhigh-strength pre-stressed concrete and machining method thereof | |
| CN103014283A (en) | Manufacture method of extremely-thick steel plate for hydropower station through continuous-cast billet | |
| CN103469090A (en) | Annealing method of ultrahigh-strength hot-forming steel | |
| CN101914726A (en) | Low-carbon low-silicon high-efficiency non-oriented electrical steel sheet and production method thereof | |
| CN102747278A (en) | Manufacturing method of steel plate for pressure vessel | |
| CN105256225A (en) | Cold-rolled steel plate for elevator and preparation method for cold-rolled steel plate | |
| CN103173681A (en) | Cold rolled steel working roll using SKD-11 steel and production process thereof | |
| CN102766802A (en) | Low-temperature high-nickel steel plate and production method thereof | |
| CN104593696A (en) | Heat-resistant steel sheet for power station boiler and manufacturing method thereof | |
| CN102517433A (en) | Heat treatment method of high-strength wear plates | |
| CN109609843A (en) | Think gauge wear-resisting steel plate and preparation method thereof in a kind of low residual stress | |
| CN112342350B (en) | Production method of high-strength and high-toughness thick steel plate | |
| CN102409234A (en) | Method for manufacturing 355MPa grade low alloy steel plate with welding crack sensitivity index less than 0.23 | |
| CN108467989A (en) | A kind of easily welding pre-hardening plastic steel plate for die and its production method | |
| CN104372245A (en) | High-strength construction steel plate and production method thereof | |
| CN103173688A (en) | High-hardness impact-resistant cold rolled steel working roll and processing technique thereof | |
| CN110184437B (en) | Production process of ultra-wide steel plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120411 |