CN104722586A - Method of manufacturing thin martensitic stainless steel sheet using strip caster with twin rolls and thin martensitic stainless steel sheet manufactured by the same - Google Patents
Method of manufacturing thin martensitic stainless steel sheet using strip caster with twin rolls and thin martensitic stainless steel sheet manufactured by the same Download PDFInfo
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- CN104722586A CN104722586A CN201410818314.2A CN201410818314A CN104722586A CN 104722586 A CN104722586 A CN 104722586A CN 201410818314 A CN201410818314 A CN 201410818314A CN 104722586 A CN104722586 A CN 104722586A
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
- B21B37/38—Control of flatness or profile during rolling of strip, sheets or plates using roll bending
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- 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
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- 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
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/1206—Accessories for subsequent treating or working cast stock in situ for plastic shaping of strands
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Continuous Casting (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
Provided is a method of manufacturing a thin martensitic stainless steel sheet by casting a thin cast strip using a strip caster including a pair of rotating strip casting rolls and hot rolling the thin cast strip, wherein any one of conditions (a) and (b) is satisfied during the hot rolling, and a thin martensitic stainless steel SHEET manufactured by the same: (a) Bending force of rolling rolls: 30 to 500 kN (b) Size of crowns of rolling rolls: 50 to 250 mu m.
Description
the mutual reference of related application
This application claims and be committed to the 10-2013-0162513 korean patent application of Korean Intellectual Property Office on December 24th, 2013 and be committed to the priority of the 10-2014-0176193 korean patent application of Korean Intellectual Property Office on December 9th, 2014, its disclosure is included in the application by the mode quoted as proof.
Background technology
The disclosure is related to and adopts the strip caster method that manufactures thin martensitic stainless steel with two roller and the thin martensitic stainless steel manufactured by the method.
Martensitic stain less steel is excellent in corrosion resistance, hardness and wearability, and is therefore used to various article and instrument, especially for shaver, scalpel, general knife for kitchen, scissors etc.Molten steel is normally formed steel ingot or slab by continuous casting process by martensitic stain less steel, and steel ingot or slab described in heating and hot rolling and obtain again, and the microstructure of described hot-rolled steel can have martensitic phase, tempered martensite phase, ferritic phase and retained austenite phase.This hot-rolled steel being formed as coiling is by changing ferrite and carbide into and softening for the batch annealing process of hot-rolled steel of annealing, further, the soft material obtained by hot rolling and annealing can experience the pickling processes of the oxide layer for removing hot rolling and During Annealing formation.After pickling, this soft material is converted into martensite steel by the process of the heat treatment process after cold rolling and product.
Steel for the production of high-test metal instrument needs the hardness of higher level, and can realize this high-grade hardness by the martensitic microstructure formed in the described steel for the production of high-test metal instrument.Martensitic microstructure is the stone microstructure produced when high temperature austenite is cooled rapidly.Along with the increase of content being dissolved in the carbon had in the austenite of high temperature, the content being dissolved in the carbon in martensite increases, and therefore martensitic hardness also increases.Therefore, in order to manufacture the martensitic stain less steel with high-grade hardness, in steel, carbon as much as possible should be contained.
But in order to manufacture this martensite steel, carbon content wherein should increase, but in the case, seriously may produce segregation and reducing casting efficiency.Such as, solid-liquid district increases.In addition, steel ingot casting is mainly used in casting martensite steel, but due to the center segregation caused as the granuloplastic raw sediment in gap and slow cool down speed, steel ingot casting can cause the decline of the quality in last handling process, thus causes a lot of difficulty.In order to head it off, Strip casting process is adopted to replace steel ingot casting, in the case, because center segregation is suppressed, and the chromium carbide sediment decreased in primary clearance particle, the quality of steel can be improved, and Strip casting process is considered to a kind of noticeable method.
Usually, in Strip casting, molten steel 1 is placed in ladle 2, the molten steel 1 placed is introduced into tundish 3, molten steel 1 is supplied to a collecting tank by inlet nozzle 4, the space of described collecting tank for being limited by Strip casting roller 5 and edge guard 6, make molten steel 1 through Strip casting roller 5 to manufacture thin cast strip 7.Then, one and a half months baffle plate 8 is set on Strip casting roller 5 to prevent the oxidation of molten steel, and by applicable gas inject collecting tank to maintain the atmosphere preset.From Strip casting roller 5 meet roll seam 9 be drawn out of obtained by thin cast strip 7 be rolled by roll 10, and curling and be manufactured to sheet metal by coiler device 11 by cooling processing.
Then, in the two roll shape thin strip casting of the steel-sheet for directly being manufactured the thickness with 10mm or less by molten steel process, with manufacture, there is the thickness of expection with the productive rate improved, the molten steel at full speed, between two rollers of rotating of rightabout that to be provided in internal water cooling by inlet nozzle and be an important technical method without the thin plate in any crack.
In addition, in order to by providing the process of a kind of pair of roll shape Strip casting to manufacture crisp high carbon martensite stainless steel, foundry engieering is important, but, the incidence reducing the edge crack produced in course of hot rolling is prior, further, it is necessary for developing a kind of edge quality by the casting method of the economy minimizing the tensile stress that causes edge crack and improve.
Summary of the invention
One side of the present disclosure provides a kind of by use two roll shape strip caster and Re Zha roller to manufacture in thin martensitic stainless steel method that the bending force controlling to prick roller manufactures the thin martensitic stainless steel with excellent edge quality, and by thin martensitic stainless steel that the method manufactures.
One side of the present disclosure also provide a kind of by use the strip caster comprising the Strip casting roller of a pair rotation to cast thin cast strip and cast strip thin described in hot rolling to manufacture the method for thin martensitic stainless steel, wherein, in the hot rolling, satisfy condition (a) and any one in (b):
The bending force of (a) roll: 30 to 500kN
The size at the top (crown) of (b) roll: 50 to 250 μm.
Another aspect of the present disclosure provides a kind of thin corrosion resistant plate, comprise: the Si of the C of 0.3wt% to 0.8wt%, the Cr of 12.0wt% to 16.0wt%, 0.2wt% to 1.0wt%, the Mn of 0.2wt% to 1.0wt%, the Ni of 0.2wt% to 1.0wt%, N, 0.03wt% of 0.01wt% to 0.1wt% or less P and 0.03wt% or less S, and comprise Fe and other inevitable impurity, wherein the size of edge crack is 30mm.
Accompanying drawing explanation
By above and other aspect of the present disclosure, other advantages of characteristic sum more clearly will be understood below in conjunction with the detailed description of accompanying drawing, wherein:
Fig. 1 is the schematic diagram that two roll shape strip casting process is shown;
Fig. 2 is the figure of the rolling that thin cast strip is shown;
Fig. 3 is by observing the picture obtained according to the inventive embodiments 3 of an embodiment of the present disclosure; And
Fig. 4 is the picture by observing comparative example 3 acquisition deviating from the scope of the present disclosure.
Detailed description of the invention
Hereinafter, embodiment of the present disclosure is described with reference to the accompanying drawings in detail.But the form that the disclosure can be much different realizes, and should not be understood to be confined to set forth embodiment herein.But, provide these embodiments to make the disclosure to be thorough in complete, and the scope of the present disclosure will be passed on to those skilled in the art fully.
In the accompanying drawings, for the sake of clarity, the shape and size of key element may be exaggerated, and the identical Ref. No. of use are represented same or analogous key element in the whole text.
An embodiment of the present disclosure provide a kind of by use the strip caster comprising the Strip casting roller of a pair rotation to cast thin cast strip and cast strip thin described in hot rolling to manufacture the method for thin martensitic stainless steel, wherein, in the hot rolling, satisfy condition (a) and any one in (b):
The bending force of (a) roll: 30 to 500kN
The size at the top of (b) roll: 50 to 250 μm.
In the example of method manufacturing thin martensitic stainless steel, as shown in Figure 1, the molten steel 1 living through refining treatment is placed in ladle 2, the molten steel 1 placed is introduced into tundish 3, molten steel 1 is supplied to a collecting tank by inlet nozzle 4, the space of described collecting tank for being limited by Strip casting roller 5 and edge guard 6, and make molten steel 1 through Strip casting roller 5 to manufacture thin cast strip 7.Obtained thin cast strip 7 is rolled by roll 10, and curling and be manufactured to sheet metal by coiler device 11 by cooling processing.
When using two roller strap material casting casting martensitic stain less steel, the one of the main reasons that ratio of defects raises is the decline that the crack at edge causes edge quality.Due to the generation of the intergranular carbide that high-carbon causes, martensite steel has low high temperature toughness, and thus fracture is responsive.Therefore, edge crack easily results from the process using strip casting process rolling foundry goods, and when the shape of foundry goods is set up or is wound into a roll, crack, by the tensile force diffusion between rolling device and wind, causes the danger of strip breaks.
Edge crack is that the scull that causes of metal that cooled by the difference of the shape of thin cast strip, local excessive and rolling condition cause, and the disclosure solves the problem that the rolling except by the factor caused except thin cast strip causes substantially.Usually, the roll for hot rolling has one for controlling the bending unit of the bending change of roll.In addition, usually, when the bending force of bending unit reduces, the reduction ratio (reduction ratio) at the edge of thin cast strip increases, and if the bending force of bending unit increases, then the reduction ratio at edge reduces.
Fig. 2 is the figure be shown schematically under state that thin cast strip is rolled, and according to the disclosure, by the control of bending force as shown in Figure 2, the top of thin cast strip is transversely rolled equably.In more detail, in the hot rolling, the bending force of roll is controlled in 30 to 50kN.When bending force is less than 30kN, the reduction ratio putting on edge excessively increases, so that produce edge wave or distortion, make roll control unstable, when bending force is more than 500kN, little reduction ratio is applied in edge, and the prolongation of the length at edge is less than the central part of light casting, so that edge produces tensile stress, easily causes edge crack.Therefore, preferably, the bending force of the roll that the disclosure is advised is in the scope of 30kN to 500kN, and preferably, the bending force of roll realizes excellent edge quality with the minimizing by edge crack in the scope of 30kN to 300kN.More preferably, the bending force of roll is more preferably in the scope of 30kN to 150kN, and most preferably, the bending force of roll is in the scope of 30kN to 100kN.Simultaneously, above-mentioned edge wave means to make the length at edge be extended be longer than centre because high reduction ratio is applied in edge, therefore edge has waveform, and distortion to refer to by the reduction ratio putting on edge between the mill speed at edge that causes of difference between difference and the defect that produces.
Preferably, the centre and the edge that homogeneous reduction ratio are put on thin cast strip are 50 μm to 250 μm to control the top dimension of roll, to ensure excellent edge quality.When the top dimension of roll is less than 50 μm, easily produce edge crack, cause the reduction of productive rate, when the top dimension of roll is more than 250 μm, the generation of the snake mark caused by edge wave or distortion may make casting process stop.The top dimension of roll refers to the difference in height h between the edge of thin cast strip and center.Therefore, preferably, the scope of the top dimension of the roll that the disclosure is advised is 50 μm to 250 μm, and preferably, the scope of the top dimension of roll be 50 μm to 200 μm to realize excellent edge quality.More preferably, the scope of the top dimension of roll is more preferably 50 μm to 150 μm, and most preferably, the scope of the top dimension of roll is 50 μm to 100 μm.
Simultaneously, according to the disclosure, be not particularly limited the alloying component of thin corrosion resistant plate, as long as this thin corrosion resistant plate has good martensitic microstructure, but, preferably, this thin corrosion resistant plate comprises the C of 0.3wt% to 0.8wt%, the Cr of 12.0wt% to 16.0wt%, the Si of 0.2wt% to 1.0wt%, Mn, the Ni of 0.2wt% to 1.0wt% of 0.2wt% to 1.0wt%, N, 0.03wt% of 0.01wt% to 0.1wt% or less P and 0.03wt% or less S, and comprises Fe and other inevitable impurity.Hereinafter, the alloying component of disclosure suggestion will be described.
C:0.3wt% to 0.8wt%
Carbon (C) is a kind of element improving the hardness of martensitic stain less steel, and the carbon comprising 0.3wt% or more is to ensure the hardness of the 600Hv or higher needed for razor steel.Along with the increase of carbon content, the martensitic hardness of being produced by heat treatment is improved, but the content of carbide also increases, and therefore corrosion resistance and cooling processing efficiency reduce, and therefore, preferably include 0.8wt% or less carbon.
Cr:12.0wt% to 16.0wt%
Chromium (Cr) is a kind of element being added to improve the corrosion resistance of martensitic stain less steel, and, only when the content of the chromium of matrix microstructure is 12wt% or more, chromium oxide film can be formed densely to improve corrosion resistance.In addition, chromium content is reduced by preventing a large amount of carbide from being formed, the corrosion resistance that the Cr preferably adding 12.5wt% or more causes with the formation improved further due to chromium oxide film.Meanwhile, due to when chromium content is more than 16wt%, corrosion resistance improves, but the martensitic hardness of being produced by heat treatment reduces, and therefore the content of chromium is preferably 16wt% or less.
Si:0.2wt% to 1.0wt%
Silicon (Si) is a kind of element be added in order to the object of deoxidation, and due to when silicone content be 0.2wt% or less time, can not obtain this deoxidation fully, therefore silicone content is preferably 0.2wt% or more.Meanwhile, due to when silicone content is more than 1.0wt%, cooling processing efficiency significantly reduces, and therefore silicone content is preferably 1.0wt% or less.
Mn:0.2wt% to 1.0wt%
Manganese (Mn) be a kind of in order to deoxidation and the object of dissolving improving nitrogen the element that is added, due to when Fe content be 0.2wt% or less time, deoxidation is insufficient, and therefore Fe content is preferably 0.2wt% or more.Meanwhile, due to when Fe content is 1.0wt%, corrosion resistance is low, and therefore Fe content is preferably 1.0wt% or less.
Ni:0.2wt% to 1.0wt%
Nickel (Ni) is a kind of being added in martensitic stain less steel to improve the corrosion resistance of matrix material and not form the element of carbide.Preferably add the nickel of 0.2wt% or more to obtain corrosion resistance fully.Meanwhile, when nickel (Ni) content is more than 1.0wt%, after strengthen connotation, forms excessive retained austenite, thus high-grade hardness can not be obtained.Although after the strengthen connotation undertaken by the austenitizing temperature during strengthen connotation and time conditions, corrosion resistance according to the microstructure of the martensitic stain less steel of association area is changed significantly, but according to the disclosure, the nickel adding 0.2wt% to 1.0wt% compensate for described deficiency, especially, improve the local corrosion resistance of such as spot corrosion or crevice corrosion.
N:0.01wt% to 0.1wt%
Nitrogen (N) is a kind ofly added improve hardness by strengthen connotation and improve the element of anti-spot corrosion and crevice corrosion.Preferably add the nitrogen of 0.01wt% to obtain described effect, but due to when nitrogen content is more than 0.1wt%, in casting processing procedure, produce nitrogen bubble and form pore or pin hole, therefore the scope of nitrogen content is preferably 0.01wt% to 0.1wt%.
P:0.03wt% or less
Phosphorus (P) is the element that a kind of impurity as steel exists, and if due to phosphorus (P) content excessive, then there is intergranular crystal and heat treatment performance declines, therefore this upper limit is restricted to 0.03wt% or less.
S:0.03wt% or less
Sulphur (S) is the element that a kind of impurity as steel (similar phosphorus) exists, and if due to sulfur content excessive, sulphur is present in intergranular crystal or sulfide and heat treatment efficiency is reduced, and therefore this upper limit is restricted to 0.03wt%.
According to the such as above-mentioned method according to the thin martensitic stainless steel of manufacture of the present disclosure provided, in the hot rolling, difference between the centre of thin cast strip and the reduction ratio at edge is 0.8wt% or less, thus very homogeneous reduction ratio can be provided, therefore, the edge crack of 30mm or less can be produced or do not produce edge crack, quite excellent edge quality can be obtained.Usually, when manufacturing martensitic stain less steel, the edge crack of 60mm or less can being produced, therefore, when considering that steel-sheet edge is cut off about 60mm, can find out that method of the present disclosure obtains very excellent edge quality.
Hereinafter, exemplary of the present disclosure will be described in detail.Meanwhile, following embodiment of the present disclosure is only for describing embodiment of the present disclosure in detail, and does not limit the scope of the present disclosure.
(the first embodiment)
By adopting two roll shape strip casting process, from S, Fe and other inevitable impurity of P and 0.001wt% of N, 0.02wt% of Ni, 0.03wt% of Mn, 0.2wt% of Si, 0.65wt% of Cr, 0.3wt% of C, 13.5wt% of 0.65wt%, obtain thin cast strip.The wide of described thin cast strip is 1300mm, and the thickness of described thin cast strip is 3.0mm, and described thin cast strip is by hot rolling and curling, and is manufactured to the sheet metal with 2mm thickness.Meanwhile, in the hot rolling, as shown in table 1, the bending force of roll is controlled, and the top dimension of roll is 30 μm.In this way, for manufactured sheet metal, observe more than the edge crack of 30mm, edge wave, distortion and the difference between steel-sheet centre and the reduction ratio at edge, result is shown in table.
Table 1
From table 1, in the inventive embodiments 1 to 5 meeting the bending force condition that the disclosure is advised, provide homogeneous reduction ratio so that do not produce crack more than 30mm, and surface quality is excellent, and do not produce edge wave or distortion thus obtain the shape quality of excellence.
But in the comparative example 1 and 2 of condition not reaching the bending force that the disclosure is advised, high reduction ratio is provided to edge, does not produce edge crack, but creates edge wave and distortion due to too high reduction ratio.
Meanwhile, in the comparative example 3 and 4 exceeding the bending force that the disclosure is advised, can see, when reduction ratio low compared with centre is provided to edge, create edge crack, and especially, in comparative example 4, seriously create edge crack so that produce strip breaks.
Fig. 3 and 4 illustrates the picture that the sheet metal by observing inventive embodiments 3 and comparative example 3 obtains.From Fig. 3 and 4, can see, in the inventive embodiments 3 meeting condition of the present disclosure, not produce edge crack, thus the quality at edge is excellent, but, visible in comparative example 3, owing to providing excessive bending force, create edge crack.
(the second embodiment)
Sheet metal is manufactured with the condition identical with the first embodiment, difference is that setting bending force is 600kN and the top of control roll is value as shown in table 2, for manufactured sheet metal, observe more than the edge crack of 30mm, edge wave and distortion, result is shown in Table 2.
Table 2
As by table 2 finding, in the inventive embodiments 6 to 11 of top dimension condition meeting the roll that the disclosure is advised, provide homogeneous reduction ratio so that do not produce the edge crack more than 30mm, and surface quality is excellent, and do not produce edge wave or distortion, thus obtain excellent shape quality.
But, can see in the comparative example 5 and 6 of the top dimension condition not reaching the roll that the disclosure is advised, because reduction ratio low compared with centre is provided to edge, create edge crack, further, visible in the comparative example 8 of the top dimension condition exceeding the roll that the disclosure is advised, because high reduction ratio is provided to edge, do not produce edge crack, but create edge wave and distortion due to too high reduction ratio.
According to the disclosure, by effectively reducing using strip caster to manufacture the edge crack easily produced in the hot rolling process of thin martensitic stainless steel, the martensitic stainless steel with excellent edge quality can be manufactured.
Claims (6)
1. one kind by use the strip caster comprising the Strip casting roller of a pair rotation to cast thin cast strip and cast strip thin described in hot rolling to manufacture the method for thin martensitic stainless steel, it is characterized in that, in the hot rolling, satisfy condition (a) and any one in (b):
The bending force of (a) roll: 30 to 500kN
The size at the top of (b) roll: 50 to 250 μm.
2. method according to claim 1, is characterized in that, the bending force of described roll is 30 to 300kN.
3. method according to claim 1, is characterized in that, the top of described roll is of a size of 50 to 200 μm.
4. method according to claim 1, it is characterized in that, described thin corrosion resistant plate comprises: the Si of the C of 0.3wt% to 0.8wt%, the Cr of 12.0wt% to 16.0wt%, 0.2wt% to 1.0wt%, the Mn of 0.2wt% to 1.0wt%, the Ni of 0.2wt% to 1.0wt%, N, 0.03wt% of 0.01wt% to 0.1wt% or less P and 0.03wt% or less S, and comprises Fe and other inevitable impurity.
5. method according to claim 1, is characterized in that, in the hot rolling, the difference between the centre of described thin cast strip and the reduction ratio at edge is 0.8% or less.
6. a thin martensitic stainless steel, comprise the C of 0.3wt% to 0.8wt%, the Cr of 12.0wt% to 16.0wt%, the Si of 0.2wt% to 1.0wt%, Mn, the Ni of 0.2wt% to 1.0wt% of 0.2wt% to 1.0wt%, N, 0.03wt% of 0.01wt% to 0.1wt% or less P and 0.03wt% or less S, and comprise Fe and other inevitable impurity, wherein the size of edge crack is 30mm.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2013-0162513 | 2013-12-24 | ||
| KR20130162513 | 2013-12-24 | ||
| KR10-2014-0176193 | 2014-12-09 | ||
| KR1020140176193A KR101647209B1 (en) | 2013-12-24 | 2014-12-09 | Method for manufacturing thin martensitic stainless steel sheet using strip caster with twin roll and thin martensitic stainless steel sheet produced uising the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104722586A true CN104722586A (en) | 2015-06-24 |
Family
ID=53399030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410818314.2A Pending CN104722586A (en) | 2013-12-24 | 2014-12-24 | Method of manufacturing thin martensitic stainless steel sheet using strip caster with twin rolls and thin martensitic stainless steel sheet manufactured by the same |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20150174648A1 (en) |
| CN (1) | CN104722586A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107030264A (en) * | 2017-04-27 | 2017-08-11 | 酒泉钢铁(集团)有限责任公司 | A kind of super austenitic stainless steel double roll strip casting rolling production process |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107186184A (en) * | 2017-04-27 | 2017-09-22 | 酒泉钢铁(集团)有限责任公司 | A kind of martensitic stain less steel double roll strip casting rolling production process |
| CN111375736B (en) * | 2020-03-24 | 2022-06-17 | 山西太钢不锈钢股份有限公司 | Casting method of martensite precipitation hardening stainless steel |
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- 2014-12-24 CN CN201410818314.2A patent/CN104722586A/en active Pending
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| KR101286205B1 (en) * | 2010-12-24 | 2013-07-15 | 주식회사 포스코 | Twin roll strip caster for casting martensitic stainless steel strip and method for casitng martensitic stainless steel strip by twin roll strip caster |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107030264A (en) * | 2017-04-27 | 2017-08-11 | 酒泉钢铁(集团)有限责任公司 | A kind of super austenitic stainless steel double roll strip casting rolling production process |
| CN107030264B (en) * | 2017-04-27 | 2019-04-26 | 酒泉钢铁(集团)有限责任公司 | A kind of super austenitic stainless steel double roll strip casting rolling production process |
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