CN108754104B - 一种消除590Mpa级别双相钢热卷扁卷缺陷的方法 - Google Patents
一种消除590Mpa级别双相钢热卷扁卷缺陷的方法 Download PDFInfo
- Publication number
- CN108754104B CN108754104B CN201810635994.2A CN201810635994A CN108754104B CN 108754104 B CN108754104 B CN 108754104B CN 201810635994 A CN201810635994 A CN 201810635994A CN 108754104 B CN108754104 B CN 108754104B
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- Prior art keywords
- hot
- austenite
- temperature
- transformation
- rolling
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 229910000885 Dual-phase steel Inorganic materials 0.000 title claims abstract description 23
- 230000007547 defect Effects 0.000 title claims abstract description 23
- 238000005098 hot rolling Methods 0.000 title claims abstract description 20
- 238000005096 rolling process Methods 0.000 title abstract description 17
- 238000001816 cooling Methods 0.000 claims abstract description 59
- 229910001566 austenite Inorganic materials 0.000 claims abstract description 57
- 230000009466 transformation Effects 0.000 claims abstract description 50
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 34
- 230000002829 reductive effect Effects 0.000 claims abstract description 24
- 229910001562 pearlite Inorganic materials 0.000 claims abstract description 18
- 238000010583 slow cooling Methods 0.000 claims abstract description 13
- 230000008859 change Effects 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 229910001563 bainite Inorganic materials 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 230000000717 retained effect Effects 0.000 abstract 1
- 230000007704 transition Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 229910000734 martensite Inorganic materials 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 238000005097 cold rolling Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/005—Ferrite
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/009—Pearlite
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
Description
C | Si | Mn | P | S |
0.060~0.090 | 0.40~0.60 | 1.6-1.9 | 0.02 | 0.007 |
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810635994.2A CN108754104B (zh) | 2018-06-20 | 2018-06-20 | 一种消除590Mpa级别双相钢热卷扁卷缺陷的方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810635994.2A CN108754104B (zh) | 2018-06-20 | 2018-06-20 | 一种消除590Mpa级别双相钢热卷扁卷缺陷的方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN108754104A CN108754104A (zh) | 2018-11-06 |
CN108754104B true CN108754104B (zh) | 2020-07-17 |
Family
ID=63979110
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201810635994.2A Active CN108754104B (zh) | 2018-06-20 | 2018-06-20 | 一种消除590Mpa级别双相钢热卷扁卷缺陷的方法 |
Country Status (1)
Country | Link |
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CN (1) | CN108754104B (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110699532B (zh) * | 2019-09-30 | 2021-10-12 | 唐山钢铁集团高强汽车板有限公司 | 一种减轻冷轧双相钢基料带状组织及扁卷缺陷的方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103627953B (zh) * | 2013-12-12 | 2016-04-27 | 首钢总公司 | 一种对等温时间不敏感的含铝复相钢及其生产方法 |
CN104593665A (zh) * | 2015-02-03 | 2015-05-06 | 东北大学 | 一种基于csp工艺的厚规格热轧双相钢制造方法 |
CN104928580A (zh) * | 2015-07-10 | 2015-09-23 | 攀钢集团攀枝花钢铁研究院有限公司 | 低Mn热轧钢及其制备方法 |
CN106480306B (zh) * | 2015-08-31 | 2018-06-26 | 上海梅山钢铁股份有限公司 | 层流分段冷却工艺中第二段冷却精度的控制方法 |
CN107557684B (zh) * | 2017-08-28 | 2019-05-03 | 北京首钢冷轧薄板有限公司 | 一种DH590MPa酸轧生产工艺控制方法 |
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2018
- 2018-06-20 CN CN201810635994.2A patent/CN108754104B/zh active Active
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Publication number | Publication date |
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CN108754104A (zh) | 2018-11-06 |
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Effective date of registration: 20240509 Address after: 025 Zhao'an street, Qian'an Economic Development Zone, Tangshan City, Hebei Province 064400 Patentee after: QIAN'AN IRON AND STEEL COMPANY OF SHOUGANG Corp. Country or region after: China Patentee after: BEIJING SHOUGANG Co.,Ltd. Address before: 100040 Shijingshan Road, Shijingshan District, Beijing Patentee before: BEIJING SHOUGANG Co.,Ltd. Country or region before: China |
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