CN100360250C - 润滑热轧方法 - Google Patents
润滑热轧方法 Download PDFInfo
- Publication number
- CN100360250C CN100360250C CNB2004800157905A CN200480015790A CN100360250C CN 100360250 C CN100360250 C CN 100360250C CN B2004800157905 A CNB2004800157905 A CN B2004800157905A CN 200480015790 A CN200480015790 A CN 200480015790A CN 100360250 C CN100360250 C CN 100360250C
- Authority
- CN
- China
- Prior art keywords
- lubricating oil
- roll
- rolling
- earth metal
- hot rolling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims abstract description 55
- 238000005098 hot rolling Methods 0.000 title claims abstract description 24
- 239000010687 lubricating oil Substances 0.000 claims abstract description 159
- 238000005096 rolling process Methods 0.000 claims abstract description 48
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims abstract description 27
- -1 alkaline-earth metal carboxylate Chemical class 0.000 claims abstract description 18
- 150000001342 alkaline earth metals Chemical class 0.000 claims abstract description 9
- 229960001860 salicylate Drugs 0.000 claims abstract description 9
- 230000001050 lubricating effect Effects 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims description 18
- 230000021523 carboxylation Effects 0.000 claims description 8
- 238000006473 carboxylation reaction Methods 0.000 claims description 8
- 150000004707 phenolate Chemical class 0.000 claims description 8
- 238000005469 granulation Methods 0.000 claims description 4
- 230000003179 granulation Effects 0.000 claims description 4
- YGSDEFSMJLZEOE-UHFFFAOYSA-M salicylate Chemical compound OC1=CC=CC=C1C([O-])=O YGSDEFSMJLZEOE-UHFFFAOYSA-M 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 44
- 230000000694 effects Effects 0.000 description 32
- 239000000314 lubricant Substances 0.000 description 23
- 238000012360 testing method Methods 0.000 description 23
- 238000005461 lubrication Methods 0.000 description 14
- 239000000463 material Substances 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 13
- 229910000831 Steel Inorganic materials 0.000 description 13
- 239000010959 steel Substances 0.000 description 13
- 238000009689 gas atomisation Methods 0.000 description 12
- 238000003801 milling Methods 0.000 description 11
- 239000007921 spray Substances 0.000 description 9
- 239000000839 emulsion Substances 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- 239000000498 cooling water Substances 0.000 description 6
- 238000007796 conventional method Methods 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 235000019198 oils Nutrition 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 239000002480 mineral oil Substances 0.000 description 3
- 235000010446 mineral oil Nutrition 0.000 description 3
- 229910000997 High-speed steel Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000003570 air Substances 0.000 description 2
- 150000001341 alkaline earth metal compounds Chemical class 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000004945 emulsification Methods 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000011378 shotcrete Substances 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 235000019484 Rapeseed oil Nutrition 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 102200082816 rs34868397 Human genes 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
- C10M159/12—Reaction products
- C10M159/20—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0035—Forging or pressing devices as units
- B21B15/005—Lubricating, cooling or heating means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/10—Lubricating, cooling or heating rolls externally
-
- 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
- B21B37/44—Control of flatness or profile during rolling of strip, sheets or plates using heating, lubricating or water-spray cooling of the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0239—Lubricating
- B21B45/0242—Lubricants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0239—Lubricating
- B21B45/0245—Lubricating devices
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
- C10M159/12—Reaction products
- C10M159/20—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products
- C10M159/22—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products containing phenol radicals
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
- C10M159/12—Reaction products
- C10M159/20—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products
- C10M159/24—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products containing sulfonic radicals
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/02—Pour-point; Viscosity index
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/52—Base number [TBN]
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/242—Hot working
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lubricants (AREA)
- Rolling Contact Bearings (AREA)
- Metal Rolling (AREA)
Abstract
Description
Claims (2)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP162490/2003 | 2003-06-06 | ||
JP2003162490 | 2003-06-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1802223A CN1802223A (zh) | 2006-07-12 |
CN100360250C true CN100360250C (zh) | 2008-01-09 |
Family
ID=33508668
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2004800157905A Expired - Lifetime CN100360250C (zh) | 2003-06-06 | 2004-06-04 | 润滑热轧方法 |
Country Status (12)
Country | Link |
---|---|
US (1) | US7204111B2 (zh) |
EP (1) | EP1633504B1 (zh) |
JP (1) | JP4348366B2 (zh) |
KR (2) | KR20080015057A (zh) |
CN (1) | CN100360250C (zh) |
AT (1) | ATE378117T1 (zh) |
BR (1) | BRPI0411211B1 (zh) |
DE (1) | DE602004010108T2 (zh) |
ES (1) | ES2294499T3 (zh) |
PL (1) | PL1633504T3 (zh) |
RU (1) | RU2308334C2 (zh) |
WO (1) | WO2004108312A1 (zh) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2832160B1 (fr) * | 2001-11-15 | 2005-01-14 | Atofina | PROCEDE DE TRAVAIL OU MISE EN FORME DES METAUX EN PRESENCE DE LUBRIFIANTS AQUEUX A BASE D'ACIDE METHANESULFONIQUE (AMS) ou D'UN SEL HYDROSOLUBLE D'AMS |
KR100768032B1 (ko) * | 2006-02-21 | 2007-10-19 | 포스데이타 주식회사 | 디코딩 장치 및 디코딩 방법 |
JP5131135B2 (ja) * | 2008-02-26 | 2013-01-30 | 新日鐵住金株式会社 | 潤滑剤供給設備および圧延機並びに潤滑剤供給方法および圧延方法 |
CN103157678B (zh) * | 2011-12-15 | 2016-01-20 | 攀钢集团攀枝花钢钒有限公司 | 轧制系统和轧制方法 |
JP5962418B2 (ja) * | 2012-10-12 | 2016-08-03 | 新日鐵住金株式会社 | 圧延における潤滑油供給方法 |
CN113831956B (zh) * | 2020-06-24 | 2022-10-14 | 上海梅山钢铁股份有限公司 | 一种冷轧乳化液粒径尺寸的控制方法 |
CN112870588A (zh) * | 2021-01-13 | 2021-06-01 | 首钢京唐钢铁联合有限责任公司 | 卷取机卸卷时的灭火方法、系统及电子终端 |
CN113319135A (zh) * | 2021-05-10 | 2021-08-31 | 内蒙古联晟新能源材料有限公司 | 一种减轻箔轧空调箔成品油斑产生的方法 |
CN113385535A (zh) * | 2021-05-10 | 2021-09-14 | 内蒙古联晟新能源材料有限公司 | 一种哈兹列特连铸连轧钎焊箔的退火色差改善方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6163311A (ja) * | 1984-09-04 | 1986-04-01 | Nippon Kokan Kk <Nkk> | 熱間圧延機による潤滑圧延方法および装置 |
JPH05306397A (ja) * | 1992-03-05 | 1993-11-19 | Sumitomo Metal Ind Ltd | 鋼材の熱間圧延用潤滑剤組成物および潤滑方法 |
JP2000312903A (ja) * | 1999-04-30 | 2000-11-14 | Nippon Steel Corp | 熱間圧延方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0229402B2 (ja) * | 1984-12-11 | 1990-06-29 | Kawasaki Steel Co | Puragumiruatsuenhohooyobipuragumiru |
JPH05315A (ja) * | 1991-06-26 | 1993-01-08 | Nippon Steel Corp | 熱間潤滑方法 |
JPH07115059B2 (ja) | 1992-09-01 | 1995-12-13 | 住友金属工業株式会社 | 鋼板の熱間圧延潤滑方法 |
JP2925449B2 (ja) | 1992-12-16 | 1999-07-28 | 新日本製鐵株式会社 | 熱間圧延用潤滑剤および熱間圧延用潤滑剤の供給方法 |
JP2624122B2 (ja) | 1993-06-15 | 1997-06-25 | 住友金属工業株式会社 | 熱間圧延加工用潤滑剤組成物 |
JP2944445B2 (ja) * | 1995-01-12 | 1999-09-06 | 協同油脂株式会社 | 高温塑性加工用潤滑剤及び高温塑性加工方法 |
JP3878323B2 (ja) | 1998-03-27 | 2007-02-07 | 新日本製鐵株式会社 | 板厚均一性に優れた深絞り用熱延鋼板の製造方法 |
JPH11279657A (ja) | 1998-03-27 | 1999-10-12 | Nippon Steel Corp | 板厚均一性に優れた深絞り用熱延鋼板の製造方法 |
JPH11293345A (ja) | 1998-04-15 | 1999-10-26 | Nippon Steel Corp | 材質均一性に優れた深絞り用冷延鋼板の製造方法 |
JP4203236B2 (ja) * | 2001-09-21 | 2008-12-24 | 新日本製鐵株式会社 | 熱間圧延における潤滑供給方法 |
-
2004
- 2004-06-04 JP JP2006508501A patent/JP4348366B2/ja not_active Expired - Fee Related
- 2004-06-04 KR KR1020087002754A patent/KR20080015057A/ko not_active Application Discontinuation
- 2004-06-04 WO PCT/JP2004/008152 patent/WO2004108312A1/en active IP Right Grant
- 2004-06-04 AT AT04736119T patent/ATE378117T1/de active
- 2004-06-04 CN CNB2004800157905A patent/CN100360250C/zh not_active Expired - Lifetime
- 2004-06-04 EP EP04736119A patent/EP1633504B1/en not_active Expired - Lifetime
- 2004-06-04 US US10/559,496 patent/US7204111B2/en not_active Expired - Lifetime
- 2004-06-04 RU RU2005141493/02A patent/RU2308334C2/ru active
- 2004-06-04 KR KR1020057023269A patent/KR100858385B1/ko active IP Right Grant
- 2004-06-04 BR BRPI0411211-3A patent/BRPI0411211B1/pt active IP Right Grant
- 2004-06-04 DE DE602004010108T patent/DE602004010108T2/de not_active Expired - Lifetime
- 2004-06-04 PL PL04736119T patent/PL1633504T3/pl unknown
- 2004-06-04 ES ES04736119T patent/ES2294499T3/es not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6163311A (ja) * | 1984-09-04 | 1986-04-01 | Nippon Kokan Kk <Nkk> | 熱間圧延機による潤滑圧延方法および装置 |
JPH05306397A (ja) * | 1992-03-05 | 1993-11-19 | Sumitomo Metal Ind Ltd | 鋼材の熱間圧延用潤滑剤組成物および潤滑方法 |
JP2000312903A (ja) * | 1999-04-30 | 2000-11-14 | Nippon Steel Corp | 熱間圧延方法 |
Also Published As
Publication number | Publication date |
---|---|
PL1633504T3 (pl) | 2008-04-30 |
EP1633504B1 (en) | 2007-11-14 |
BRPI0411211A (pt) | 2006-07-18 |
BRPI0411211B1 (pt) | 2018-04-03 |
EP1633504A1 (en) | 2006-03-15 |
ES2294499T3 (es) | 2008-04-01 |
RU2308334C2 (ru) | 2007-10-20 |
KR20060016803A (ko) | 2006-02-22 |
WO2004108312A1 (en) | 2004-12-16 |
JP2006527086A (ja) | 2006-11-30 |
US7204111B2 (en) | 2007-04-17 |
KR20080015057A (ko) | 2008-02-15 |
RU2005141493A (ru) | 2006-06-27 |
US20060156774A1 (en) | 2006-07-20 |
ATE378117T1 (de) | 2007-11-15 |
CN1802223A (zh) | 2006-07-12 |
DE602004010108T2 (de) | 2008-09-11 |
DE602004010108D1 (de) | 2007-12-27 |
KR100858385B1 (ko) | 2008-09-11 |
JP4348366B2 (ja) | 2009-10-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: NIPPON STEEL CORP.; ARCELOR MITTAL FRANCE CO., LTD Free format text: FORMER NAME OR ADDRESS: NIPPON STEEL CORP.; USINOR |
|
CP03 | Change of name, title or address |
Address after: Tokyo Co-patentee after: ARCELORMITTAL FRANCE Patentee after: NIPPON STEEL Corp. Address before: Tokyo Co-patentee before: USINOR Patentee before: NIPPON STEEL Corp. |
|
ASS | Succession or assignment of patent right |
Owner name: NIPPON STEEL + SUMITOMO METAL CORPORATION Free format text: FORMER OWNER: SHIN NIPPON STEEL LTD. Effective date: 20130318 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20130318 Address after: Tokyo, Japan Patentee after: NIPPON STEEL & SUMITOMO METAL Corp. Patentee after: ARCELORMITTAL FRANCE Address before: Tokyo, Japan Patentee before: NIPPON STEEL Corp. Patentee before: Arcelormittal France |
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CP01 | Change in the name or title of a patent holder | ||
CP01 | Change in the name or title of a patent holder |
Address after: Tokyo, Japan Co-patentee after: ARCELORMITTAL FRANCE Patentee after: NIPPON STEEL & SUMITOMO METAL Corp. Address before: Tokyo, Japan Co-patentee before: Arcelormittal France Patentee before: NIPPON STEEL & SUMITOMO METAL Corp. |
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CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20080109 |