JP2005023421A - 耐食性に優れた溶接継手を有する原油油槽 - Google Patents
耐食性に優れた溶接継手を有する原油油槽 Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L8/00—Electric propulsion with power supply from forces of nature, e.g. sun or wind
- B60L8/006—Converting flow of air into electric energy, e.g. by using wind turbines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K16/00—Arrangements in connection with power supply of propulsion units in vehicles from forces of nature, e.g. sun or wind
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K16/00—Arrangements in connection with power supply of propulsion units in vehicles from forces of nature, e.g. sun or wind
- B60K2016/006—Arrangements in connection with power supply of propulsion units in vehicles from forces of nature, e.g. sun or wind wind power driven
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/90—Vehicles comprising electric prime movers
- B60Y2200/91—Electric vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
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Abstract
【解決手段】 基本成分として質量%で、C:0.001〜0.2%、Si:0.01〜2.5%、Mn:0.1〜2%、Cu:0.01〜1.5%、Al:0.001〜0.1%、N:0.001〜0.01%を含有し、さらに、Mo:0.01〜0.5%、W:0.02〜1%、の1種または2種を含有する鋼材を溶接した原油油槽であって、溶接継手部の溶接金属のCu含有量/鋼材のCu含有量、及び、(溶接金属のMo含有量+W含有量)/(鋼材のMo含有量+W含有量)を0.15〜3とすることで、継手の局部腐食を抑制し、原油油槽全体としての耐食性を向上させる。
【選択図】 なし
Description
C:0.001〜0.2%、
Si:0.01〜2.5%、
Mn:0.1〜2%、
P:0.03%以下、
S:0.02%以下、
Cu:0.01〜1.5%、
Al:0.001〜0.3%、
N:0.001〜0.01%、
を含有し、さらに、
Mo:0.01〜0.5%、
W:0.01〜1%、
の1種または2種を含有し、残部がFeおよび不可避的不純物からなる鋼材同士を溶接して原油油槽を形成するに際し、該溶接継手部における溶接金属のCu、Mo、W含有量が各々下記(1)及び(2)式を満足することを特徴とする、耐食性に優れた溶接継手を有する原油油槽。
3≧溶接金属のCu含有量(質量%)/鋼材のCu含有量(質量%)≧0.15 ・ ・ ・(1)
3≧(溶接金属のMo含有量+W含有量(質量%))
/(鋼材のMo含有量+W含有量(質量%))≧0.15 ・ ・ ・(2)
1.5≧溶接金属のCu含有量(質量%)/鋼材のCu含有量(質量%)
≧0.3 ・ ・ ・(3)
1.5≧(溶接金属のMo含有量+W含有量(質量%))
/(鋼材のMo含有量+W含有量(質量%))≧0.3 ・ ・ ・(4)
固溶Mo+固溶W≧0.005% ・ ・ ・(5)
Ni:0.1〜3%、
Co:0.1〜3%、
の1種または2種を含有することを特徴とする、上記(1)〜(4)項のいずれかに記載の耐食性に優れた溶接継手を有する原油油槽。
Sb:0.01〜0.3%、
Sn:0.01〜0.3%、
Pb:0.01〜0.3%、
As:0.01〜0.3%、
Bi:0.01〜0.3%、
Se:0.01〜0.3%、
の1種または2種以上を含有することを特徴とする、上記(1)〜(5)項のいずれかに記載の耐食性に優れた溶接継手を有する原油油槽。
Nb:0.002〜0.2%、
V:0.005〜0.5%、
Ti:0.002〜0.2%、
Ta:0.005〜0.5%、
Zr:0.005〜0.5%、
B:0.0002〜0.005%、
の1種または2種以上を含有することを特徴とする、上記(1)〜(6)項のいずれかに記載の耐食性に優れた溶接継手を有する原油油槽。
Mg:0.0001〜0.01%、
Ca:0.0005〜0.01%、
Y:0.0001〜0.1%、
La:0.005〜0.1%、
Ce:0.005〜0.1%、
の1種または2種以上を含有することを特徴とする、上記(1)〜(7)項のいずれかに記載の耐食性に優れた溶接継手を有する原油油槽。
3≧溶接金属のCu含有量(質量%)/鋼材のCu含有量(質量%)≧0.15 ・ ・ ・(1)
3≧(溶接金属のMo含有量+W含有量(質量%))
/(鋼材のMo含有量+W含有量(質量%))≧0.15 ・ ・ ・(2)
Cuに関して、(1)式に示すように溶接金属中の質量%/鋼材中の質量%が3超であると、溶接金属近傍の溶接熱影響部から母材にかけての鋼材が選択的に腐食されるため、好ましくない。一方、Cuの溶接金属中の質量%/鋼材中の質量%が0.15未満でであると、溶接金属が電気化学的に卑となって、溶接金属の局部腐食が顕著となるため避けるべきである。したがって、質量%で3〜0.15としたが、3〜0.3が好ましい。また、Mo、Wも同様に規定する必要があるが、Mo、Wは腐食挙動に対してほぼ同等の効果を有するため、MoとWの合計量を規定すればよく、Cuと同様、(2)式に示すようにMoとWとの合計量で、溶接金属中の質量%/鋼材中の質量%は3〜0.15が必須であるが、3〜0.3が好ましい。Cu、及びMo、Wの合計量、各々の溶接金属中の質量%/鋼材中の質量%は1に近い方が溶接金属あるいは鋼材のどちらかが選択的に腐食される可能性が小さく、(3)式及び(4)式に示すように、Cu、及び、MoとWの合計量、各々の溶接金属中の質量%/鋼材中の質量%は1.5〜0.3の範囲内とすることが、より好ましい。
2 露点調整水槽
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4 試験片
5 恒温ヒーター板
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Claims (9)
- 質量%で、
C:0.001〜0.2%、
Si:0.01〜2.5%、
Mn:0.1〜2%、
P:0.03%以下、
S:0.02%以下、
Cu:0.01〜1.5%、
Al:0.001〜0.3%、
N:0.001〜0.01%、
を含有し、さらに、
Mo:0.01〜0.5%、
W:0.01〜1%、
の1種または2種を含有し、残部がFeおよび不可避的不純物からなる鋼材同士を溶接して原油油槽を形成するに際し、該溶接継手部における溶接金属のCu、Mo、W含有量が各々下記(1)及び(2)式を満足することを特徴とする、耐食性に優れた溶接継手を有する原油油槽。
3≧溶接金属のCu含有量(質量%)/鋼材のCu含有量(質量%)≧0.15 ・ ・ ・(1)
3≧(溶接金属のMo含有量+W含有量(質量%))
/(鋼材のMo含有量+W含有量(質量%))≧0.15 ・ ・ ・(2) - 前記溶接継手部における溶接金属のCu、Mo、W含有量が各々下記(3)及び(4)式を満足することを特徴とする、請求項1に記載の耐食性に優れた溶接継手を有する原油油槽。
1.5≧溶接金属のCu含有量(質量%)/鋼材のCu含有量(質量%)
≧0.3 ・ ・ ・(3)
1.5≧(溶接金属のMo含有量+W含有量(質量%))
/(鋼材のMo含有量+W含有量(質量%))≧0.3 ・ ・ ・(4) - 鋼材の固溶Mo量と固溶W量とが下記(5)式を満足することを特徴とする、請求項1または2のいずれかに記載の耐食性に優れた溶接継手を有する原油油槽。
固溶Mo+固溶W≧0.005% ・ ・ ・(5) - 鋼材のCr含有量が0.1%未満であることを特徴とする、請求項1〜3のいずれかに記載の耐食性に優れた溶接継手を有する原油油槽。
- 鋼材が質量%でさらに、
Ni:0.1〜3%、
Co:0.1〜3%、
の1種または2種を含有することを特徴とする、請求項1〜4のいずれかに記載の耐食性に優れた溶接継手を有する原油油槽。 - 鋼材が質量%でさらに、
Sb:0.01〜0.3%、
Sn:0.01〜0.3%、
Pb:0.01〜0.3%、
As:0.01〜0.3%、
Bi:0.01〜0.3%、
Se:0.01〜0.3%、
の1種または2種以上を含有することを特徴とする、請求項1〜5のいずれかに記載の耐食性に優れた溶接継手を有する原油油槽。 - 鋼材が質量%でさらに、
Nb:0.002〜0.2%、
V:0.005〜0.5%、
Ti:0.002〜0.2%、
Ta:0.005〜0.5%、
Zr:0.005〜0.5%、
B:0.0002〜0.005%、
の1種または2種以上を含有することを特徴とする、請求項1〜6のいずれかに記載の耐食性に優れた溶接継手を有する原油油槽。 - 鋼材が質量%でさらに、
Mg:0.0001〜0.01%、
Ca:0.0005〜0.01%、
Y:0.0001〜0.1%、
La:0.005〜0.1%、
Ce:0.005〜0.1%、
の1種または2種以上を含有することを特徴とする、請求項1〜7のいずれかに記載の耐食性に優れた溶接継手を有する原油油槽。 - 鋼材のミクロ組織が少なくともベイナイトとマルテンサイトの1種または2種から構成され、該ベイナイトとマルテンサイトの合計の面積率が30%以上であることを特徴とする、請求項1〜8のいずれかに記載の耐食性に優れた溶接継手を有する原油油槽。
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CNB2004100330313A CN1329545C (zh) | 2003-02-26 | 2004-02-26 | 具有耐腐蚀性优良的焊接接缝的原油油槽 |
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KR100548116B1 (ko) | 2006-02-02 |
CN1329545C (zh) | 2007-08-01 |
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