JPH0346305B2 - - Google Patents
Info
- Publication number
- JPH0346305B2 JPH0346305B2 JP1046683A JP1046683A JPH0346305B2 JP H0346305 B2 JPH0346305 B2 JP H0346305B2 JP 1046683 A JP1046683 A JP 1046683A JP 1046683 A JP1046683 A JP 1046683A JP H0346305 B2 JPH0346305 B2 JP H0346305B2
- Authority
- JP
- Japan
- Prior art keywords
- clad
- carbon steel
- steel
- seawater
- copper
- 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
Links
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 19
- 239000010962 carbon steel Substances 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 239000013535 sea water Substances 0.000 claims description 13
- 239000010935 stainless steel Substances 0.000 claims description 12
- 229910001220 stainless steel Inorganic materials 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 7
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 5
- 229910052725 zinc Inorganic materials 0.000 claims description 5
- 239000011701 zinc Substances 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 description 15
- 238000005260 corrosion Methods 0.000 description 15
- 239000007788 liquid Substances 0.000 description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 238000010612 desalination reaction Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Prevention Of Electric Corrosion (AREA)
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】
本発明は、優れた耐腐食性を有するクラツド鋼
板に関し、特に海水や硫酸などの腐食性雰囲気に
さらされるクラツド鋼板に適したものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a clad steel plate having excellent corrosion resistance, and is particularly suitable for clad steel plates exposed to corrosive atmospheres such as seawater and sulfuric acid.
従来、海水淡水化装置の水室やケミカルタンク
などの材料や、海水あるいはりん酸、硫酸などの
腐食性の強い液体にさらされる部材の材料とし
て、これらの液体にさらされる側の表面材に耐食
性の高い銅および銅合金あるいはステンレス鋼を
クラツドしたクラツド鋼板が使用されてきた。 Conventionally, materials for the water chambers and chemical tanks of seawater desalination equipment, as well as materials for parts exposed to seawater or highly corrosive liquids such as phosphoric acid and sulfuric acid, have been used to provide corrosion resistance to the surface materials exposed to these liquids. Clad steel plates made of high-quality copper and copper alloys or stainless steel have been used.
第１図は従来のステンレスクラツド鋼を示すも
のであるが、板厚２mmのSUS304ステンレス鋼２
に傷４（割れ、孔食などを含む）ができ、炭素鋼
１の一部が海水などの腐食性の強い液体５（例え
ば海水）にさらされる場合、ステンレス鋼２と炭
素鋼１の間の電池作用により炭素鋼１の腐食が促
進され、大きな腐食孔６を生じる。 Figure 1 shows conventional stainless clad steel.
If scratches 4 (including cracks, pitting, etc.) occur on the stainless steel 2 and a part of the carbon steel 1 is exposed to a highly corrosive liquid 5 such as seawater (for example, seawater), the damage between the stainless steel 2 and the carbon steel 1 Corrosion of the carbon steel 1 is accelerated by the battery action, and large corrosion holes 6 are formed.
このように、従来のクラツド鋼板の場合、銅、
銅合金あるいはステンレス鋼などの表面材２の一
部に傷４や割れあるいは腐食（例えば孔食）など
が起こり、母材である炭素鋼１が露出すると、表
面材２との間の電池作用のため母材である炭素鋼
１の腐食が著しく加速される欠点があつた。 In this way, in the case of conventional clad steel sheets, copper,
If scratches 4, cracks, or corrosion (for example, pitting corrosion) occur in a part of the surface material 2 such as copper alloy or stainless steel, and the base material carbon steel 1 is exposed, the battery action between the surface material 2 and the surface material 2 may be exposed. Therefore, there was a drawback that corrosion of the base material carbon steel 1 was significantly accelerated.
本発明は、銅、銅合金あるいはステンレスクラ
ツド鋼板において、銅、銅合金あるいはステンレ
ス鋼などの表面材の一部に傷、割れあるいは腐食
などが起こり、母材である炭素鋼が海水などの腐
食性の強い液体にさらされる場合でも、母材であ
る炭素鋼の腐食を防止できる多重クラツド鋼板を
提供するものである。 The present invention is a copper, copper alloy, or stainless clad steel sheet in which scratches, cracks, or corrosion occur on a part of the surface material of the copper, copper alloy, or stainless steel, and the carbon steel that is the base material is corroded by seawater. The present invention provides a multi-clad steel plate that can prevent corrosion of carbon steel, which is a base material, even when exposed to strong liquids.
すなわち本発明は、銅、銅合金板あるいはステ
ンレス鋼板などの表面材と、炭素鋼板の間に、亜
鉛、アルミニウムまたはこれらの合金など炭素鋼
よりも海水中などの溶液中での自然電極電位が卑
な金属の薄板をクラツドすることにより、銅、銅
合金あるいはステンレス鋼などの表面材の一部に
傷、割れあるいは腐食などが起こり、炭素鋼が海
水などの腐食性の強い液体にさらされても、炭素
鋼が電気的に防食される多重クラツド鋼板に関す
るものである。 That is, the present invention provides a bond between a surface material such as copper, a copper alloy plate, or a stainless steel plate, and a carbon steel plate, which has a natural electrode potential in a solution such as seawater that is lower than that of carbon steel such as zinc, aluminum, or an alloy thereof. By cladding with thin metal sheets, some of the surface materials such as copper, copper alloy, or stainless steel may be scratched, cracked, or corroded, and even if carbon steel is exposed to highly corrosive liquids such as seawater. , relates to a multi-clad steel plate in which carbon steel is electrically protected against corrosion.
本発明クラツド鋼板は、海水淡水化装置、海洋
構造物、船体外板、化学薬品等を貯蔵するタンク
等の材料として適用できる。 The clad steel sheet of the present invention can be applied as a material for seawater desalination equipment, marine structures, hull shells, tanks for storing chemicals, etc.
第２図は本発明クラツド鋼板の一実施態様例を
示す図である。 FIG. 2 is a diagram showing an embodiment of the clad steel plate of the present invention.
第２図において、海水に対する耐食性を持たせ
るため、板鋼２mmのSUS304ステンレス鋼板２
が、板厚10mmの炭素鋼板１の上に、板厚0.7mmの
亜鉛板３を介してクラツドしてある。 In Figure 2, a 2mm SUS304 stainless steel plate 2 is used to provide corrosion resistance against seawater.
is clad on a carbon steel plate 1 with a thickness of 10 mm via a zinc plate 3 with a thickness of 0.7 mm.
第２図においては、ステンレス鋼２に傷４（割
れ、孔食などを含む）ができ、炭素鋼１が腐食性
の強い液体５（例えば海水）にさらされる場合で
も、ステンレス鋼２と炭素鋼１の間にクラツドさ
れた亜鉛３により電気防食され、亜鉛３の腐食７
のみが生じ、炭素鋼１の腐食は防止される。 In FIG. 2, even if stainless steel 2 has scratches 4 (including cracks, pitting, etc.) and carbon steel 1 is exposed to a highly corrosive liquid 5 (for example, seawater), stainless steel 2 and carbon steel Electrolytic protection is provided by zinc 3 clad during 1, corrosion of zinc 3 is 7
corrosion of the carbon steel 1 is prevented.
なお、本発明クラツド鋼板において、耐食性を
有する表面材としては、ステンレス鋼の他に、
銅、あるいは9/1キユプロニツケルなどの場合金
が挙げられる。また、炭素鋼１を防食するため表
面材との間にクラツドする材料としてはアルミニ
ウムあるいはアルミニウム合金など腐食性の強い
液体５（例えば海水）中で炭素鋼１よりも自然電
極電位の卑な金属が挙げられる。 In addition, in the clad steel sheet of the present invention, as a surface material having corrosion resistance, in addition to stainless steel,
Copper, or gold in the case of 9/1 Cyprus. In addition, as a material to be clad between the carbon steel 1 and the surface material to prevent corrosion, a metal such as aluminum or an aluminum alloy, which has a less natural electrode potential than the carbon steel 1 in a highly corrosive liquid 5 (for example, seawater), may be used. Can be mentioned.
第１図は従来のクラツド鋼板とその欠点を説明
するための図、第２図は本発明クラツド鋼板の一
実施態様例とその効果を説明するための図であ
る。
FIG. 1 is a diagram for explaining a conventional clad steel plate and its drawbacks, and FIG. 2 is a diagram for explaining an embodiment of the clad steel plate of the present invention and its effects.
Claims (1)
表面材と、炭素鋼板との間に、亜鉛、アルミニウ
ムまたはこれらの合金など炭素鋼よりも海水など
の溶液中での自然電極電位が卑な金属の薄板をク
ラツドしたことを特徴とする多重クラツド鋼板。1. A thin plate of metal, such as zinc, aluminum, or an alloy thereof, which has a less natural electrode potential in a solution such as seawater than carbon steel, is placed between the surface material such as copper, copper alloy plate, or stainless steel plate and the carbon steel plate. A multi-clad steel sheet characterized by being clad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1046683A JPS59136247A (en) | 1983-01-27 | 1983-01-27 | Multiple clad steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1046683A JPS59136247A (en) | 1983-01-27 | 1983-01-27 | Multiple clad steel plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59136247A JPS59136247A (en) | 1984-08-04 |
| JPH0346305B2 true JPH0346305B2 (en) | 1991-07-15 |
Family
ID=11750907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1046683A Granted JPS59136247A (en) | 1983-01-27 | 1983-01-27 | Multiple clad steel plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59136247A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6473085A (en) * | 1986-10-01 | 1989-03-17 | Kawasaki Steel Co | Stainless steel sheet |
| JPH0771831B2 (en) * | 1987-09-08 | 1995-08-02 | 古河電気工業株式会社 | Copper alloy strip with excellent corrosion resistance and thermal and electrical conductivity |
| EP2348140A4 (en) * | 2008-09-26 | 2013-08-07 | Rozen Andrei Evgenievich | Multilayer material with enhanced corrosion resistance (variants) and methods for preparing same |
-
1983
- 1983-01-27 JP JP1046683A patent/JPS59136247A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59136247A (en) | 1984-08-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2444174A (en) | Galvanic coating process | |
| GB860968A (en) | Method of improving the corrosion resistance of titanium and titanium base alloys | |
| JPH0346305B2 (en) | ||
| US2762771A (en) | Bilge keel anode | |
| US2404031A (en) | Corrosion preventing electrode | |
| Spacht | The corrosion resistance of aluminum and its alloys. | |
| US3179582A (en) | Welding attachment of anodes for cathodic protection | |
| US20180282880A1 (en) | Sacrificial Collar | |
| US4191625A (en) | Aluminum marine anode assembly with low resistance surface mountings | |
| US4468310A (en) | Aluminum marine anode with core activator | |
| GB2233981B (en) | Apparatus for the cathodic corrosion protection of metal surfaces immersed in a liquid electrolyte,preferably seawater,preferably metal surfaces at the stern | |
| JPS60200988A (en) | Insulating clad steel plate | |
| BROUILLETTE | Corrosion Rates in Port Hueneme Harbor | |
| Carson | Zinc as a self-regulating galvanic anode for ship hulls | |
| JP3985334B2 (en) | Coated steel with excellent anticorrosion performance | |
| EP3647465A1 (en) | Zink-based sacrificial anode alloy, use of a zink-based alloy, and a sacrificial anode | |
| AU2006235903B2 (en) | Alloy for use in galvanic protection | |
| JPS6234762Y2 (en) | ||
| Schmitt et al. | Corrosion performance of constructional steels in marine applications | |
| GB777816A (en) | Improvements in or relating to consumable galvanic anodes for use in the cathodic protection of metal structures | |
| LONGRIDGE et al. | CORRESPONDENCE. THE DECAY OF METALS. | |
| NO840467L (en) | GALVANIC OFFER ANODE ON ALUMINUM ALLOY BASE | |
| MAck | and duly elected members of the Society:- | |
| JPS61279546A (en) | Copper or copper alloy clad steel plate | |
| BLAIR | THE CHEMISTRY OF MARINE CORROSION |