CN113578964A - Rolling method of 300 series wide stainless steel hard products - Google Patents
Rolling method of 300 series wide stainless steel hard products Download PDFInfo
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- CN113578964A CN113578964A CN202110683409.8A CN202110683409A CN113578964A CN 113578964 A CN113578964 A CN 113578964A CN 202110683409 A CN202110683409 A CN 202110683409A CN 113578964 A CN113578964 A CN 113578964A
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- 238000005096 rolling process Methods 0.000 title claims abstract description 144
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 93
- 239000010935 stainless steel Substances 0.000 title claims abstract description 93
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000000137 annealing Methods 0.000 claims abstract description 37
- 238000001953 recrystallisation Methods 0.000 claims abstract description 31
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 26
- 239000010959 steel Substances 0.000 claims abstract description 26
- 238000005520 cutting process Methods 0.000 claims abstract description 14
- 238000005238 degreasing Methods 0.000 claims abstract description 13
- 238000004806 packaging method and process Methods 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 239000002253 acid Substances 0.000 claims description 21
- 238000005406 washing Methods 0.000 claims description 21
- 238000005097 cold rolling Methods 0.000 claims description 15
- 230000002441 reversible effect Effects 0.000 claims description 15
- 239000006104 solid solution Substances 0.000 claims description 12
- 238000005554 pickling Methods 0.000 claims description 9
- 238000010008 shearing Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 6
- 210000001503 joint Anatomy 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- 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
- B21B1/22—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 plates, strips, bands or sheets of indefinite length
- B21B1/30—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 plates, strips, bands or sheets of indefinite length in a non-continuous process
- B21B1/32—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 plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
- B21B1/36—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 plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work by cold-rolling
-
- 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
- C21D1/26—Methods of annealing
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
- C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
-
- 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
- B21B1/22—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 plates, strips, bands or sheets of indefinite length
- B21B2001/221—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 plates, strips, bands or sheets of indefinite length by cold-rolling
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Metal Rolling (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
The invention discloses a rolling method of 300 series wide stainless steel hard products, which comprises the following steps: the method comprises the steps of raw material treatment, intermediate rolling, recrystallization annealing, judging whether to execute a secondary rolling process, a final rolling process, degreasing and shear packaging. The rolling method directly adopts the wide 300 series stainless steel with the width more than or equal to 1500mm, which makes it possible to omit the cutting and welding of a plurality of sheet strips with the width more than 1250mm by a client to obtain larger sheet strips, thereby not only improving the yield of the client, but also reducing the cost of the client; meanwhile, the intermediate rolling process is adopted for rolling, so that the rolling load is reduced, the non-uniformity of metal flow in the rolling process is reduced, the flatness of the plate strip is improved, and the butt joint and welding of customers are facilitated. Therefore, the 300 series wide stainless steel hard products manufactured by the method can ensure good plate shape and steel coil surface hardness, and the yield of customer products is improved.
Description
Technical Field
The invention relates to the technical field of stainless steel preparation, in particular to a rolling method of 300 series wide stainless steel hard products.
Background
The 300 series stainless steel is a steel grade which is easy to be cold deformed and strengthened, and can rapidly improve the hardness and the strength by rolling on a 20-roll reversing cold mill, and can keep enough plasticity and toughness and good corrosion resistance under the atmospheric environment. The width of a rolled hard plate strip in the current market is below 1250mm, mainly because the wider the plate strip is, the larger the rolling load is, and the worse the non-uniformity of metal flow in the rolling process is, the worse the plate strip flatness is, the more the welding butt joint of a client is affected. In addition, when a customer needs a plate strip with a width of 1250mm or more, a plurality of plate strips with a width of 1250mm or more are often required to be cut and welded, and a welding seam is ground and polished, so that the yield is reduced, and the cost is increased.
Disclosure of Invention
The invention aims to provide a rolling method of 300 series wide stainless steel hard products, which aims to solve the problems of narrow width, low yield and poor plate shape of the existing 300 series stainless steel hard products.
In order to achieve the purpose, the invention adopts the technical scheme that:
a rolling method of 300 series wide stainless steel hard products comprises the following steps:
step 1, raw material treatment:
carrying out hot continuous annealing and pickling on the 300 series hot-rolled black coil stainless steel to obtain a solid-solution stainless steel coil;
step 2, intermediate rolling:
rolling the solid solution stainless steel coil obtained in the step 1 on a reversible cold rolling mill with 20 rollers and width of 1600mm to obtain a hard stainless steel coil with an intermediate rolling process;
step 3, recrystallization annealing:
carrying out recrystallization annealing and acid washing on the intermediate rolling process rolled hard stainless steel coil obtained in the step 2 to obtain a 300 series stainless steel coil after recrystallization annealing and acid washing;
and 4, judging whether to execute a secondary rolling process:
judging whether the 300 series stainless steel coil obtained in the step 3 reaches the target thickness of the intermediate rolling process:
if so, the process proceeds to step 5,
if not, returning to the step 2;
step 5, final rolling:
rolling the obtained 300 series stainless steel coils on a reversible cold rolling mill with 20 rollers and width of 1600mm to obtain 300 series stainless steel final rolling hard steel coils;
step 6, degreasing:
degreasing the 300 series stainless steel hard steel coil obtained in the step 5;
step 7, cutting and packaging:
and (4) shearing and packaging the degreased steel coil obtained in the step (6) to obtain the final 300 series stainless steel hard products.
In order to further realize the invention, the number of rolling passes of the intermediate rolling process in the step 2 is 5-11 passes.
In order to further realize the invention, the rolling process total reduction rate of the rolling in the step 5 is 13-16% when the Vickers hardness grade of the final rolling process hard steel coil is 1/2H; when the Vickers hardness grade is 3/4H, the final rolling total reduction rate is 20-25%; the Vickers hardness grade is FH, and the total reduction rate of the final rolling process is 25-30%.
In order to further realize the invention, the width of the raw material in the step 1 is 1500mm-1560 mm.
Compared with the prior art, the invention has the beneficial effects that:
the rolling method directly adopts the wide 300 series stainless steel with the width more than or equal to 1500mm, which makes it possible to omit the cutting and welding of a plurality of sheet strips with the width more than 1250mm by a client to obtain larger sheet strips, thereby not only improving the yield of the client, but also reducing the cost of the client; meanwhile, the intermediate rolling process is adopted for rolling, so that the rolling load is reduced, the non-uniformity of metal flow in the rolling process is reduced, the flatness of the plate strip is improved, and the butt joint and welding of customers are facilitated. Therefore, the 300 series wide stainless steel hard products manufactured by the method can ensure good plate shape and steel coil surface hardness, and the yield of customer products is improved.
Detailed Description
The present invention will be further described with reference to the following embodiments.
A rolling method of 300 series wide stainless steel hard products is characterized by comprising the following steps:
step 1, raw material treatment:
carrying out hot continuous annealing and pickling on 300 series hot-rolled black coil stainless steel to obtain a solid-solution stainless steel coil, wherein the width of the raw material is 1500-1560 mm;
step 2, intermediate rolling:
rolling the solid solution stainless steel coil obtained in the step 1 on a reversible cold rolling mill with 20 rollers and width of 1600mm, wherein the number of rolling passes is 5-11, and obtaining a hard stainless steel coil rolled in an intermediate rolling process;
step 3, recrystallization annealing:
carrying out recrystallization annealing and acid washing on the intermediate rolling process rolled hard stainless steel coil obtained in the step 2 to obtain a 300 series stainless steel coil after recrystallization annealing and acid washing;
and 4, judging whether to execute a secondary rolling process:
judging whether the 300 series stainless steel coil obtained in the step 3 reaches the target thickness of the intermediate rolling process:
if so, the process proceeds to step 5,
if not, returning to the step 2;
step 5, final rolling:
rolling the obtained 300 series stainless steel coils on a reversible cold rolling mill with 20 rollers and width of 1600mm, wherein the total rolling reduction of the rolling process is 13-16% when the Vickers hardness grade of the hard steel coils in the final rolling process is 1/2H; when the Vickers hardness grade is 3/4H, the final rolling total reduction rate is 20-25%; when the Vickers hardness grade is FH, the final rolling total reduction rate is 25% -30%, and finally the 300 series stainless steel final rolling hard steel coil is obtained;
step 6, degreasing:
degreasing the 300 series stainless steel hard steel coil obtained in the step 5;
step 7, cutting and packaging:
and (4) shearing and packaging the degreased steel coil obtained in the step (6) to obtain the final 300 series stainless steel hard products.
Example 1:
obtaining a 301 wide stainless steel hard product with the finished product thickness of 0.490mm, the width of 1500mm and the Vickers hardness level of 1/2H, comprising the following steps:
step 1, raw material treatment:
selecting a 301 hot-rolled black coil with the thickness of 4.0mm multiplied by 1530mm for hot annealing and pickling to obtain a solid-solution 301 stainless steel coil;
step 2, intermediate rolling:
rolling the solid solution state 301 stainless steel coil obtained in the step 1 on a 1600mm wide 20-roller reversible cold rolling mill, and executing a second rolling process because the thickness of the raw material is thicker and the total rolling reduction rate is larger, wherein the first rolling process is from 4.0mm rolling to 1.4mm rolling, so that a middle rolling process rolling hard stainless steel coil with the thickness of 1.4mm multiplied by 1530mm width is obtained;
step 3, recrystallization annealing:
carrying out recrystallization annealing and acid washing on the hard stainless steel coil rolled in the intermediate rolling process obtained in the step 2 to obtain a 301 stainless steel coil after recrystallization annealing and acid washing;
and 4, judging whether to execute a secondary rolling process:
judging whether the stainless steel coil obtained in the step 3 reaches the target thickness of the intermediate rolling process: returning to repeat the step 2, continuously rolling the 301 stainless steel coil obtained in the step 3 after recrystallization annealing and acid washing on a 1600mm wide 20-roller reversible cold rolling mill, rolling from 1.4mm to 0.566mm to obtain a 0.566mm (thickness) × 1530mm (width) intermediate rolling process rolling hard stainless steel coil, and performing recrystallization annealing and acid washing on the obtained intermediate rolling process rolling hard stainless steel coil to obtain a 301 stainless steel coil after recrystallization annealing and acid washing;
step 5, final rolling:
rolling the obtained 301 stainless steel coil subjected to recrystallization annealing and acid washing on a 1600mm wide 20-roller reversible cold rolling mill, wherein the total rolling reduction rate is 13.43%, the rolling is performed for 2 times, and the rolling is performed from 0.566mm to 0.490mm, so that a final rolling process hard steel coil with the Vickers hardness level of 1/2H and the thickness of 0.490mm multiplied by 1530mm (width) is obtained;
step 6, degreasing:
degreasing the 301 stainless steel hard steel coil obtained in the step 5;
step 7, cutting and packaging:
and (3) longitudinally cutting and transversely cutting the degreased steel coil obtained in the step (6) according to the requirements of customers, and then packaging to obtain a 301 stainless steel hard product with the final Vickers hardness grade of 1/2H, HV =300-350 and 0.490mm (thickness) multiplied by 1500mm (width).
Example 2:
obtaining a 301 wide stainless steel hard product with the finished product thickness of 0.395mm, the width of 1500mm and the Vickers hardness grade of 3/4H, comprising the following steps:
step 1, raw material treatment:
selecting a 301 hot-rolled black coil with the thickness of 4.0mm multiplied by 1530mm for hot annealing and pickling to obtain a solid-solution 301 stainless steel coil;
step 2, intermediate rolling:
rolling the solid solution state 301 stainless steel coil obtained in the step 1 on a 1600mm wide 20-roller reversible cold rolling mill, and executing a second rolling process because the thickness of the raw material is thicker and the total rolling reduction rate is larger, wherein the first rolling process is from 4.0mm rolling to 1.4mm rolling, so that a middle rolling process rolling hard stainless steel coil with the thickness of 1.4mm multiplied by 1530mm width is obtained;
step 3, recrystallization annealing:
carrying out recrystallization annealing and acid washing on the hard stainless steel coil rolled in the intermediate rolling process obtained in the step 2 to obtain a 301 stainless steel coil after recrystallization annealing and acid washing;
and 4, judging whether to execute a secondary rolling process:
judging whether the stainless steel coil obtained in the step 3 reaches the target thickness of the intermediate rolling process: returning to repeat the step 2, continuously rolling the 301 stainless steel coil obtained in the step 3 after recrystallization annealing and acid washing on a 1600mm wide 20-roller reversible cold rolling mill, rolling from 1.4mm to 0.501mm to obtain a 0.501mm (thickness) × 1530mm (width) intermediate rolling process rolling hard stainless steel coil, and performing recrystallization annealing and acid washing on the obtained intermediate rolling process rolling hard stainless steel coil to obtain a 301 stainless steel coil after recrystallization annealing and acid washing;
step 5, final rolling:
rolling the obtained 301 stainless steel coil subjected to recrystallization annealing and acid washing on a 1600mm wide 20-roller reversible cold rolling mill, wherein the total rolling reduction rate is 21.16%, the rolling is carried out for 3 times, and the steel coil is rolled from 0.501mm to 0.395mm, so that a final rolling process hard steel coil with the Vickers hardness level of 3/4H and the thickness of 0.395mm multiplied by 1530mm (width) is obtained;
step 6, degreasing:
degreasing the 301 stainless steel hard steel coil obtained in the step 5;
step 7, cutting and packaging:
and (3) longitudinally cutting and transversely cutting the degreased steel coil obtained in the step (6) according to the requirements of customers, and then packaging to obtain a 301 stainless steel hard product with the final Vickers hardness grade of 3/4H, HV =370 and 420, and the thickness of 0.395mm multiplied by 1500 mm.
Example 3:
obtaining a 301 wide stainless steel hard product with finished product thickness of 0.395mm, width of 1500mm and Vickers hardness grade of FH, comprising the following steps:
step 1, raw material treatment:
selecting a 301 hot-rolled black coil with the thickness of 4.0mm multiplied by 1530mm for hot annealing and pickling to obtain a solid-solution 301 stainless steel coil;
step 2, intermediate rolling:
rolling the solid solution state 301 stainless steel coil obtained in the step 1 on a 1600mm wide 20-roller reversible cold rolling mill, and executing a second rolling process because the thickness of the raw material is thicker and the total rolling reduction rate is larger, wherein the first rolling process is from 4.0mm rolling to 1.4mm rolling, so that a middle rolling process rolling hard stainless steel coil with the thickness of 1.4mm multiplied by 1530mm width is obtained;
step 3, recrystallization annealing:
carrying out recrystallization annealing and acid washing on the hard stainless steel coil rolled in the intermediate rolling process obtained in the step 2 to obtain a 301 stainless steel coil after recrystallization annealing and acid washing;
and 4, judging whether to execute a secondary rolling process:
judging whether the stainless steel coil obtained in the step 3 reaches the target thickness of the intermediate rolling process rolling: returning to repeat the step 2, continuously rolling the 301 stainless steel coil subjected to recrystallization annealing and pickling on a 1600mm wide 20-roller reversible cold rolling mill, rolling from 1.4mm to 0.557mm to obtain a 0.557mm (thickness) × 1530mm (width) intermediate rolling process rolling hard stainless steel coil, and performing recrystallization annealing and pickling on the obtained intermediate rolling process rolling hard stainless steel coil to obtain a 301 stainless steel coil subjected to recrystallization annealing and pickling;
step 5, final rolling:
rolling the obtained 301 stainless steel coil subjected to recrystallization annealing and acid washing on a 1600mm wide 20-roller reversible cold rolling mill, wherein the total rolling reduction rate is 29.08%, the rolling is performed for 5 times, and the steel coil is rolled from 0.557mm to 0.395mm, so that a final rolling process hard steel coil with the Vickers hardness grade of FH, 0.395mm (thickness) multiplied by 1530mm (width) is obtained;
step 6, degreasing:
degreasing the 301 stainless steel hard steel coil obtained in the step 5;
step 7, cutting and packaging:
and (3) longitudinally cutting and transversely cutting the degreased steel coil obtained in the step (6) according to the requirements of customers, and then packaging to obtain a 301 stainless steel hard product with the final Vickers hardness grade of FH, HV = 420-.
Claims (4)
1. A rolling method of 300 series wide stainless steel hard products is characterized by comprising the following steps:
step 1, raw material treatment:
carrying out hot continuous annealing and pickling on the 300 series hot-rolled black coil stainless steel to obtain a solid-solution stainless steel coil;
step 2, intermediate rolling:
rolling the solid solution stainless steel coil obtained in the step 1 on a reversible cold rolling mill with 20 rollers and width of 1600mm to obtain a hard stainless steel coil with an intermediate rolling process;
step 3, recrystallization annealing:
carrying out recrystallization annealing and acid washing on the intermediate rolling process rolled hard stainless steel coil obtained in the step 2 to obtain a 300 series stainless steel coil after recrystallization annealing and acid washing;
and 4, judging whether to execute a secondary rolling process:
judging whether the 300 series stainless steel coil obtained in the step 3 reaches the target thickness of the intermediate rolling process:
if so, the process proceeds to step 5,
if not, returning to the step 2;
step 5, final rolling:
rolling the obtained 300 series stainless steel coils on a reversible cold rolling mill with 20 rollers and width of 1600mm to obtain 300 series stainless steel final rolling hard steel coils;
step 6, degreasing:
degreasing the 300 series stainless steel hard steel coil obtained in the step 5;
step 7, cutting and packaging:
and (4) shearing and packaging the degreased steel coil obtained in the step (6) to obtain the final 300 series stainless steel hard products.
2. The rolling method of 300 series wide stainless steel hard products according to claim 1, characterized in that: and the number of rolling passes of the intermediate rolling process in the step 2 is 5-11.
3. The rolling method of 300 series wide stainless steel hard products according to claim 1, characterized in that: 5, when the Vickers hardness grade of the final rolling hard steel coil is 1/2H, the final rolling total reduction rate is 13-16%; when the Vickers hardness grade is 3/4H, the final rolling total reduction rate is 20-25%; the Vickers hardness grade is FH, and the total reduction rate of the final rolling process is 25-30%.
4. The rolling method of 300 series wide stainless steel hard products according to claim 1, characterized in that: the width of the raw materials in the step 1 is 1500mm-1560 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110683409.8A CN113578964A (en) | 2021-06-21 | 2021-06-21 | Rolling method of 300 series wide stainless steel hard products |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110683409.8A CN113578964A (en) | 2021-06-21 | 2021-06-21 | Rolling method of 300 series wide stainless steel hard products |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0219426A (en) * | 1988-07-08 | 1990-01-23 | Nippon Steel Corp | Manufacture of cr-ni stainless steel sheet having excellent quality and surface property |
| CN101481778A (en) * | 2008-01-07 | 2009-07-15 | 宝山钢铁股份有限公司 | Austenic stainless steel strip and manufacturing method thereof |
| CN104711492A (en) * | 2015-03-20 | 2015-06-17 | 宝钢不锈钢有限公司 | Super-hard austenitic stainless steel and preparation method thereof |
| CN109848212A (en) * | 2019-03-13 | 2019-06-07 | 山西太钢不锈钢股份有限公司 | A kind of stainless steel belt and its milling method |
| CN109923220A (en) * | 2016-09-29 | 2019-06-21 | 奥托库姆普有限公司 | Method for austenitic steel cold deformation |
-
2021
- 2021-06-21 CN CN202110683409.8A patent/CN113578964A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0219426A (en) * | 1988-07-08 | 1990-01-23 | Nippon Steel Corp | Manufacture of cr-ni stainless steel sheet having excellent quality and surface property |
| CN101481778A (en) * | 2008-01-07 | 2009-07-15 | 宝山钢铁股份有限公司 | Austenic stainless steel strip and manufacturing method thereof |
| CN104711492A (en) * | 2015-03-20 | 2015-06-17 | 宝钢不锈钢有限公司 | Super-hard austenitic stainless steel and preparation method thereof |
| CN109923220A (en) * | 2016-09-29 | 2019-06-21 | 奥托库姆普有限公司 | Method for austenitic steel cold deformation |
| CN109848212A (en) * | 2019-03-13 | 2019-06-07 | 山西太钢不锈钢股份有限公司 | A kind of stainless steel belt and its milling method |
Non-Patent Citations (1)
| Title |
|---|
| 王廷溥等: "金属塑性加工学：轧制理论与工艺（第3版）", 冶金工业出版社, pages: 270 - 271 * |
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