CN107186184A - A kind of martensitic stain less steel double roll strip casting rolling production process - Google Patents
A kind of martensitic stain less steel double roll strip casting rolling production process Download PDFInfo
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- CN107186184A CN107186184A CN201710289045.9A CN201710289045A CN107186184A CN 107186184 A CN107186184 A CN 107186184A CN 201710289045 A CN201710289045 A CN 201710289045A CN 107186184 A CN107186184 A CN 107186184A
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- 238000005266 casting Methods 0.000 title claims abstract description 42
- 238000005096 rolling process Methods 0.000 title claims abstract description 35
- 229910001105 martensitic stainless steel Inorganic materials 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 60
- 239000010959 steel Substances 0.000 claims abstract description 60
- 238000005098 hot rolling Methods 0.000 claims abstract description 29
- 238000001816 cooling Methods 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 6
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 54
- 239000007789 gas Substances 0.000 claims description 44
- 229910052786 argon Inorganic materials 0.000 claims description 27
- 239000001257 hydrogen Substances 0.000 claims description 13
- 229910052739 hydrogen Inorganic materials 0.000 claims description 13
- 230000001681 protective effect Effects 0.000 claims description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 5
- 238000007670 refining Methods 0.000 claims description 5
- 150000002431 hydrogen Chemical class 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052799 carbon Inorganic materials 0.000 abstract description 5
- 238000007711 solidification Methods 0.000 abstract description 5
- 230000008023 solidification Effects 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000005204 segregation Methods 0.000 abstract description 3
- 230000004888 barrier function Effects 0.000 abstract description 2
- 238000012797 qualification Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910000734 martensite Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0622—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
- B21B1/463—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B3/02—Rolling special iron alloys, e.g. stainless steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
- B22D11/002—Stainless steels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
- B22D11/0697—Accessories therefor for casting in a protected atmosphere
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The present invention relates to a kind of martensitic stain less steel double roll strip casting rolling production process, comprise the following steps：（1）The qualified molten steel of composition is hoisted to bale panoramic tables；（2）Molten steel is injected into tundish；（3）Double-roller rolling；（4）Made-up belt hot rolling；（5）The cooling and excision of strip are end to end；（6）Strip coiling.The present invention directly produces martensitic stain less steel strip by double-roller rolling, using this feature of molten steel quick solidification in strip casting process, reduces the segregation of carbon, solves the technical barrier of martensitic stain less steel cutter water ripples, obtains the fine and smooth production board in surface.Using this feature of molten steel quick solidification in strip casting process, peritectic reaction is avoided, the problem of solving martensitic stainless steel base lobe reduces reconditioning loss, improve slab qualification rate.
Description
Technical field
The invention belongs to metallurgical engineering technical field, and in particular to a kind of martensitic stain less steel dual-roller thin-belt casting rolling produces work
Skill.
Background technology
Martensitic stain less steel increases with the increase of carbon content in steel, intensity, hardness, and under plasticity and toughness
Drop, but because its anti-wear performance is good, it is widely used in tableware manufacturing, more representative steel grade has 20Cr13
And 30Cr13.The current various civilian kitchen knifes of stainless steel are good and cheap mostly from the manufacture of 30Cr13 martensitic stain less steels, it is deep by
Consumers in general like.Cutter is included with 30Cr13 martensitic stain less steel performance requirements：Good hardenability (hardness after quenching
52HRC or so), excellent decay resistance, appropriate processing characteristics, good chip performance（Cloth number of times is cut to weigh）,
Segregation phenomena can not occur in material simultaneously.
Because martensitic stain less steel has peritectic reaction (generation phase transformation) during solidification shrinkage, Volume Changes are larger,
Easily cause face crack, so using conventional thickness（220mm is thick）Cast during conventional slab caster production martensitic stain less steel
Base surface is also easy to produce lobe or the defect such as longitudinally concave.
Traditional handicraft is in continuous casting martensitic stain less steel only drawback is that substantial amounts of water occurs during knife processed
Ripple, the export volume attractive in appearance and limiting knife of influence knife.Each domestic manufacturer does not obtain well all in research
Solve.It is a kind of as ripples that high carbon martensite stainless steel water ripple refers to that the cutter being made up of its material occurs after being polished on surface
The same lines, research shows main relevant with the segregation of casting process carbon.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of martensitic stain less steel for shortcoming of the prior art
Double roll strip casting rolling production process.
Technical problem for the solution present invention is adopted the following technical scheme that：
A kind of martensitic stain less steel double roll strip casting rolling production process, is comprised the following steps that：
（1）The qualified molten steel of composition is hoisted to bale panoramic tables：Martensitic stain less steel molten steel after LF ladle refining furnaces are refined
It is hoisted to bale panoramic tables, calm 15-25min；
（2）Molten steel is injected into tundish：Tundish blowing argon gas 10-20min drive out of in bag after air by long nozzle by molten steel from
Ladle is injected into tundish, and degree of superheat control is added on 20 DEG C -30 DEG C, molten steel for being incubated and adsorbing the centre being mingled with
Covering agent；
（3）Double-roller rolling：Molten steel is injected in twin-roll cast-rolling mill by submersed nozzle, and Cast Strip speed is 60-100 m/min, casting
Roller gap is adjustable between 3.0-4.5mm, is carried out during MOLTEN STEEL FLOW using the mixed gas of argon gas or argon gas and hydrogen
Protection, molten steel is in Casting Roller in process of setting, and cooldown rate control range is 150-500 DEG C/s；
（4）Made-up belt hot rolling：Roll casting sheet is in the mixed gas protected lower carry out hot rolling of argon gas or argon gas and hydrogen, and made-up belt is through pinching
Roller is sent to hot-rolling mill and carries out constant-tension rolling, and mill speed scope is 68-120 m/min, and wherein made-up belt hot-rolled temperature control is
1050-1150 DEG C, belt steel thickness control range is 2.5-4.0mm after made-up belt hot rolling；
（5）The cooling and excision of strip are end to end
Strip cooling after hot rolling, is sent to cutter through pinch roll and carries out the excision of strip end to end；
（6）Strip coiling
Strip after excision end to end is sent to coiling machine through pinch roll and carries out strip coiling, obtains finished product thin strip steel coil.
The step（3）Middle protective gas pressure is 0.3-0.5MPa.
The step（3）The volume ratio of middle argon gas and hydrogen is 3: 1.
The step（4）Middle protective gas pressure is 0.3-0.5MPa.
The step（4）The volume ratio of middle argon gas and hydrogen is 3: 1.
The step（5）Strip after middle hot rolling is cooled to 650-700 DEG C through cooling facility for laminar flow.
Double-roll type thin-belt casting rolling technology is metallurgical cutting edge technology, and commercial Application has been realized in carbon steel production.The applicant's root
The characteristics of according to double-roll type thin-belt casting rolling technique, it is incorporated among the production of martensitic stain less steel, by rational matching thickness, pours
The key process parameters such as temperature, teeming speed, cooldown rate are cast, high-quality, inexpensive qualified martensitic stain less steel product is realized
Production.Beneficial effects of the present invention are：（1）Using this feature of molten steel quick solidification in strip casting process, the inclined of carbon is reduced
Analysis, solves the technical barrier of martensitic stain less steel cutter water ripples, obtains the fine and smooth production board in surface.（2）Utilize casting
This feature of molten steel quick solidification, avoids peritectic reaction in journey, the problem of solving martensitic stainless steel base lobe, reduces
Reconditioning is lost, and improves slab qualification rate.（3）Casting and course of hot rolling whole process are protected using the mixed gas of argon gas or argon gas and hydrogen
Shield, Molten Steel Cleanliness is high, and scale on surface is thin, raw beneficial to product surface quality, and the subsequently reduction of pickling cost is improved
Produce the raising of efficiency.
Brief description of the drawings
Fig. 1 is martensitic stain less steel dual-roller thin-belt casting rolling production procedure schematic diagram of the present invention.
Embodiment
In conjunction with specific embodiments, the present invention is described in further detail, but the implementation of the present invention is not limited to this.
Embodiment 1
A kind of thickness 2.5mm, steel grade 30Cr13 martensitic stain less steel strip products casting and rolling production process, comprise the following steps：
（1）The qualified molten steel of composition is hoisted to bale panoramic tables：Martensitic stain less steel molten steel after LF ladle refining furnaces are refined
It is hoisted to bale panoramic tables, calm 25min；
（2）Molten steel is injected into tundish：Tundish blowing argon gas 20min is driven out of molten steel in bag after air by long nozzle from ladle
It is injected into tundish, the degree of superheat is controlled at 30 DEG C, is added above molten steel for being incubated and adsorbing the tundish covering flux being mingled with；
（3）Double-roller rolling：Molten steel is injected into twin-roll cast-rolling mill by submersed nozzle, and Cast Strip speed is 100m/min, casting
Roller presets roll gap for 3.0mm, is protected during MOLTEN STEEL FLOW using argon gas, protective gas pressure 0.5Mpa, after casting
The made-up belt thickness arrived is 3.0mm, and molten steel is in Casting Roller in process of setting, 500 DEG C/s of cooldown rate；
（4）Made-up belt hot rolling：Roll casting sheet carries out hot rolling under argon gas protection, protective gas pressure 0.5MPa, and made-up belt is through pinch roll
It is sent to hot-rolling mill and carries out constant-tension rolling, the m/min of mill speed 120,1150 DEG C of made-up belt hot-rolled temperature, strip after made-up belt hot rolling
Thickness is 2.5mm；
（5）The cooling and excision of strip are end to end
When temperature is cooled to 700 DEG C for 950 DEG C of strip through cooling facility for laminar flow after hot rolling, then it is sent to cutter through pinch roll and enters
The excision of row strip end to end；
（6）Strip coiling
Strip after excision end to end is sent to coiling machine through pinch roll and carries out strip coiling, obtains finished product thin strip steel coil.
Embodiment 2
A kind of thickness 3.5mm, steel grade 40Cr13 martensitic stain less steel strip products casting and rolling production process, comprise the following steps：
（1）The qualified molten steel of composition is hoisted to bale panoramic tables：Martensitic stain less steel molten steel after LF ladle refining furnaces are refined
It is hoisted to bale panoramic tables, calm 20min；
（2）Molten steel is injected into tundish：Tundish blowing argon gas 15min is driven out of molten steel in bag after air by long nozzle from ladle
It is injected into tundish, the degree of superheat is controlled at 25 DEG C, is added above molten steel for being incubated and adsorbing the tundish covering flux being mingled with；
（3）Double-roller rolling：Molten steel is injected into twin-roll cast-rolling mill by submersed nozzle, and Cast Strip speed is 80m/min, Casting Roller
Roll gap is preset for 4.0mm, is protected during MOLTEN STEEL FLOW using the mixed gas of argon gas and hydrogen, wherein argon gas and hydrogen
Volume ratio be 3: 1, protective gas pressure 0.5MPa.The made-up belt thickness obtained after casting is 4.0mm.Molten steel coagulates in Casting Roller
Gu during, 350 DEG C/s of cooldown rate；
（4）Made-up belt hot rolling：Roll casting sheet protect lower carry out hot rolling using the mixed gas of argon gas and hydrogen, wherein argon gas and
The volume ratio of hydrogen is 3: 1, protective gas pressure 0.3Mpa, and made-up belt is sent to hot-rolling mill through pinch roll and carries out constant-tension rolling, rolls
The m/min of speed 91 processed, 1100 DEG C of made-up belt hot-rolled temperature, belt steel thickness is 3.5mm after made-up belt hot rolling；
（5）The cooling and excision of strip are end to end
When temperature is cooled to 680 DEG C for 910 DEG C of strip through cooling facility for laminar flow after hot rolling, then it is sent to cutter through pinch roll and enters
The excision of row strip end to end；
（6）Strip coiling
Strip after excision end to end is sent to coiling machine through pinch roll and carries out strip coiling, obtains finished product thin strip steel coil.
Embodiment 3
A kind of thickness 4.0mm, steel grade 20Cr13 martensitic stain less steel strip products casting and rolling production process, comprise the following steps：
（1）The qualified molten steel of composition is hoisted to bale panoramic tables：Martensitic stain less steel molten steel after LF ladle refining furnaces are refined
It is hoisted to bale panoramic tables, calm 15min；
（2）Molten steel is injected into tundish：Tundish blowing argon gas 10min is driven out of molten steel in bag after air by long nozzle from ladle
It is injected into tundish, the degree of superheat is controlled at 20 DEG C, is added above molten steel for being incubated and adsorbing the tundish covering flux being mingled with；
（3）Double-roller rolling：Molten steel is injected into twin-roll cast-rolling mill by submersed nozzle, and Cast Strip speed is 60m/min, Casting Roller
Roll gap is preset for 4.5mm, is protected during MOLTEN STEEL FLOW using argon gas, protective gas pressure 0.3MPa is obtained after casting
Made-up belt thickness be 4.5mm, molten steel is in Casting Roller in process of setting, 150 DEG C/s of cooldown rate；
（4）Made-up belt hot rolling：Roll casting sheet carries out hot rolling under argon gas protection, protective gas pressure 0.5MPa, and made-up belt is through pinch roll
It is sent to hot-rolling mill and carries out constant-tension rolling, the m/min of mill speed 68,1050 DEG C of made-up belt hot-rolled temperature, strip thickness after made-up belt hot rolling
Spend for 4.0mm；
（5）The cooling and excision of strip are end to end
When temperature is cooled to 650 DEG C for 900 DEG C of strip through cooling facility for laminar flow after hot rolling, then it is sent to cutter through pinch roll and enters
The excision of row strip end to end；
（6）Strip coiling
Strip after excision end to end is sent to coiling machine through pinch roll and carries out strip coiling, obtains finished product thin strip steel coil.
Claims (6)
1. a kind of martensitic stain less steel double roll strip casting rolling production process, it is characterised in that comprise the following steps that：
（1）The qualified molten steel of composition is hoisted to bale panoramic tables：Martensitic stain less steel molten steel after LF ladle refining furnaces are refined
It is hoisted to bale panoramic tables, calm 15-25min；
（2）Molten steel is injected into tundish：Tundish blowing argon gas 10-20min drive out of in bag after air by long nozzle by molten steel from
Ladle is injected into tundish, and degree of superheat control is added on 20 DEG C -30 DEG C, molten steel for being incubated and adsorbing the centre being mingled with
Covering agent；
（3）Double-roller rolling：Molten steel is injected in twin-roll cast-rolling mill by submersed nozzle, and Cast Strip speed is 60-100 m/min, casting
Roller gap is adjustable between 3.0-4.5mm, is carried out during MOLTEN STEEL FLOW using the mixed gas of argon gas or argon gas and hydrogen
Protection, molten steel is in Casting Roller in process of setting, and cooldown rate control range is 150-500 DEG C/s；
（4）Made-up belt hot rolling：Roll casting sheet is in the mixed gas protected lower carry out hot rolling of argon gas or argon gas and hydrogen, and made-up belt is through pinching
Roller is sent to hot-rolling mill and carries out constant-tension rolling, and mill speed scope is 68-120 m/min, and wherein made-up belt hot-rolled temperature control is
1050-1150 DEG C, belt steel thickness control range is 2.5-4.0mm after made-up belt hot rolling；
（5）The cooling and excision of strip are end to end
Strip cooling after hot rolling, is sent to cutter through pinch roll and carries out the excision of strip end to end；
（6）Strip coiling
Strip after excision end to end is sent to coiling machine through pinch roll and carries out strip coiling, obtains finished product thin strip steel coil.
2. a kind of martensitic stain less steel double roll strip casting rolling production process according to claim 1, it is characterised in that：It is described
Step（3）Middle protective gas pressure is 0.3-0.5MPa.
3. a kind of martensitic stain less steel double roll strip casting rolling production process according to claim 2, it is characterised in that：It is described
Step（3）The volume ratio of middle argon gas and hydrogen is 3: 1.
4. a kind of martensitic stain less steel double roll strip casting rolling production process according to claim 1, it is characterised in that：It is described
Step（4）Middle protective gas pressure is 0.3-0.5MPa.
5. a kind of martensitic stain less steel double roll strip casting rolling production process according to claim 4, it is characterised in that：It is described
Step（4）The volume ratio of middle argon gas and hydrogen is 3: 1.
6. a kind of martensitic stain less steel double roll strip casting rolling production process according to claim 3 or 5, it is characterised in that：
The step（5）Strip after middle hot rolling is cooled to 650-700 DEG C through cooling facility for laminar flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710289045.9A CN107186184A (en) | 2017-04-27 | 2017-04-27 | A kind of martensitic stain less steel double roll strip casting rolling production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710289045.9A CN107186184A (en) | 2017-04-27 | 2017-04-27 | A kind of martensitic stain less steel double roll strip casting rolling production process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107186184A true CN107186184A (en) | 2017-09-22 |
Family
ID=59873548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710289045.9A Pending CN107186184A (en) | 2017-04-27 | 2017-04-27 | A kind of martensitic stain less steel double roll strip casting rolling production process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107186184A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108359909A (en) * | 2018-05-25 | 2018-08-03 | 江苏集萃冶金技术研究院有限公司 | High tough martensite steel method is prepared by thin-belt casting rolling and aging technique |
| CN110899644A (en) * | 2018-09-14 | 2020-03-24 | 宝山钢铁股份有限公司 | Production method of ultrathin hot rolled strip steel |
| CN111151584A (en) * | 2019-12-30 | 2020-05-15 | 江苏沙钢集团有限公司 | Novel hot box for producing high-surface-quality hot-rolled strip steel without online descaling |
| CN113751680A (en) * | 2021-09-09 | 2021-12-07 | 中南大学 | Method for manufacturing ultra-fine grain maraging steel thin strip |
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| CN101432083A (en) * | 2006-02-27 | 2009-05-13 | 纽科尔公司 | Low surface roughness cast strip and method and apparatus for making the same |
| CN102666902A (en) * | 2009-12-28 | 2012-09-12 | Posco公司 | Martensitic stainless steel produced by a twin roll strip casting process and method for manufacturing same |
| CN102665964A (en) * | 2009-12-21 | 2012-09-12 | Posco公司 | High-carbon martensitic stainless steel and a production method therefor |
| CN104630432A (en) * | 2013-11-14 | 2015-05-20 | Posco公司 | Method adopting double-roll slab casting machine to produce martensitic stainless steel plate |
| US20150174648A1 (en) * | 2013-12-24 | 2015-06-25 | Posco | Method of Manufacturing Thin Martensitic Stainless Steel Sheet Using Strip Caster with Twin Rolls and Thin Martensitic Stainless Steel Sheet Manufactured by the Same |
| CN104846176A (en) * | 2015-05-29 | 2015-08-19 | 东北大学 | Cast-rolling method for eliminating delta ferrite in martensitic aged stainless steel thin strip |
-
2017
- 2017-04-27 CN CN201710289045.9A patent/CN107186184A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101432083A (en) * | 2006-02-27 | 2009-05-13 | 纽科尔公司 | Low surface roughness cast strip and method and apparatus for making the same |
| CN102665964A (en) * | 2009-12-21 | 2012-09-12 | Posco公司 | High-carbon martensitic stainless steel and a production method therefor |
| CN102666902A (en) * | 2009-12-28 | 2012-09-12 | Posco公司 | Martensitic stainless steel produced by a twin roll strip casting process and method for manufacturing same |
| CN104630432A (en) * | 2013-11-14 | 2015-05-20 | Posco公司 | Method adopting double-roll slab casting machine to produce martensitic stainless steel plate |
| US20150174648A1 (en) * | 2013-12-24 | 2015-06-25 | Posco | Method of Manufacturing Thin Martensitic Stainless Steel Sheet Using Strip Caster with Twin Rolls and Thin Martensitic Stainless Steel Sheet Manufactured by the Same |
| CN104846176A (en) * | 2015-05-29 | 2015-08-19 | 东北大学 | Cast-rolling method for eliminating delta ferrite in martensitic aged stainless steel thin strip |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108359909A (en) * | 2018-05-25 | 2018-08-03 | 江苏集萃冶金技术研究院有限公司 | High tough martensite steel method is prepared by thin-belt casting rolling and aging technique |
| CN110899644A (en) * | 2018-09-14 | 2020-03-24 | 宝山钢铁股份有限公司 | Production method of ultrathin hot rolled strip steel |
| CN111151584A (en) * | 2019-12-30 | 2020-05-15 | 江苏沙钢集团有限公司 | Novel hot box for producing high-surface-quality hot-rolled strip steel without online descaling |
| CN113751680A (en) * | 2021-09-09 | 2021-12-07 | 中南大学 | Method for manufacturing ultra-fine grain maraging steel thin strip |
| CN113751680B (en) * | 2021-09-09 | 2022-05-06 | 中南大学 | Method for manufacturing ultra-fine grain maraging steel thin strip |
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Application publication date: 20170922 |