JPH03150381A - Device for cathodic protection of surface of metal immsersed in electrolytic solution - Google Patents
Device for cathodic protection of surface of metal immsersed in electrolytic solutionInfo
- Publication number
- JPH03150381A JPH03150381A JP2243688A JP24368890A JPH03150381A JP H03150381 A JPH03150381 A JP H03150381A JP 2243688 A JP2243688 A JP 2243688A JP 24368890 A JP24368890 A JP 24368890A JP H03150381 A JPH03150381 A JP H03150381A
- Authority
- JP
- Japan
- Prior art keywords
- sacrificial anode
- propeller
- support structure
- casing
- cathodic protection
- 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.)
- Granted
Links
- 238000004210 cathodic protection Methods 0.000 title claims abstract description 8
- 239000002184 metal Substances 0.000 title claims description 5
- 239000008151 electrolyte solution Substances 0.000 title 1
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 239000013535 sea water Substances 0.000 claims abstract description 6
- 238000012856 packing Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims abstract description 3
- 230000008878 coupling Effects 0.000 claims abstract 2
- 238000010168 coupling process Methods 0.000 claims abstract 2
- 238000005859 coupling reaction Methods 0.000 claims abstract 2
- 239000003792 electrolyte Substances 0.000 claims description 9
- 230000013011 mating Effects 0.000 claims description 4
- 238000010292 electrical insulation Methods 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
-
- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
-
- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
- C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
- C23F13/18—Means for supporting electrodes
Abstract
Description
【発明の詳細な説明】
発明の目的
本発明は、電解液が比較的高速で流れる開城に位置する
支持構造、特に船舶のプロペラ軸に取付けられた少なく
とも１つの犠牲陽極を用いて、電解液中、特に海水中に
浸された金属表面、特に船舶の船尾管シーリングの外側
面を陰極防食するための装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION OBJECTS OF THE INVENTION The present invention provides a method for detecting electrolyte in an electrolyte by means of at least one sacrificial anode mounted on a support structure, in particular a ship's propeller shaft, located in an open field through which an electrolyte flows at a relatively high velocity. , in particular relates to a device for cathodic protection of metal surfaces immersed in seawater, in particular the external surfaces of ship stern tube sealings.
従来の装置、例えば、ドイツ国公開特許第２５２０９４
８号並びに米国特許第３７２６７７９号において開示さ
れた装置においては、犠牲陽極が、支持構造にネジによ
って直接固定されるか、あるいは、犠牲陽極を腐食させ
てしまうネジによる締め付けによって締め付は力を得る
ようにした係合結合によって間接的に固定されている。Conventional devices, for example German Published Patent Application No. 252094
In the devices disclosed in No. 8 and U.S. Pat. No. 3,726,779, the sacrificial anode is fixed directly to the support structure by screws, or the clamping force is obtained by tightening the screws, which corrodes the sacrificial anode. It is indirectly fixed by such an engaging connection.
かかる場合において、（それ自体意図された）犠牲陽極
の腐食が犠牲陽極と接触するネジの頭部においてもまた
引き起こされ、その結果、犠牲陽極と支持構造との間の
締め付は結合がもはや保証されなくなり、陰極防食作用
は相対的に短時間しか保証されない。In such cases, corrosion of the sacrificial anode (intended as such) is also caused at the head of the screw in contact with the sacrificial anode, so that the clamping between the sacrificial anode and the supporting structure no longer guarantees the connection. cathodic protection is guaranteed only for a relatively short time.
すなわち、犠牲陽極は、支持構造の回転と共にぐらつく
ようになり、場合によっては、不可避的に発生する振動
によって負荷を及ぼされ、砕けて脱落し、あるいは割れ
て脱落してしまう、したがって、陰極防食はもはや、犠
牲陽極の自然消耗に要する時間よりも短い一定の時間ま
てしか達成されず、犠牲陽極の寿命が本質的に短縮され
てしまうことになる。That is, the sacrificial anode becomes wobbly with the rotation of the supporting structure and, in some cases, is loaded by the vibrations that inevitably occur, causing it to crumble and fall off, or even crack and fall off. Now only a certain amount of time is achieved, which is shorter than the time required for natural wear of the sacrificial anode, and the life of the sacrificial anode is essentially shortened.
したがって、本発明の目的はこれら従来の装置の欠点を
解消することである。It is therefore an object of the present invention to overcome the drawbacks of these conventional devices.
発明の構成および効果
この目的は、本発明に基づいて、電解液が比較的高速で
流れる領域に位置する支持構造、特に船舶のプロペラ軸
に取付けられた少なくとも１つの犠牲陽極を用いて、電
解液中、特に海水中に浸された金属表面、特に船舶の船
尾管シーリングの外側面を陰極防食するための装置にお
いて、前記犠牲陽極を前記支持構造に取付けるための手
段が、前記犠牲陽極を部分的に包囲し支持するケーシン
グと、前記ケーシングから延長されたリップ形状の突起
部とからなっており、前記リップ形状の突起部が前記支
持構造に係合結合することによって、前記犠牲陽極が前
記支持構造に取付けられ、前記犠牲陽極を直接腐食させ
るネジ結合による前記犠牲陽極の前記支持構造への取付
けが回避されるものであることを特徴とする装置を構成
することによって解決される。Arrangement and Effects of the Invention This object is based on the present invention, in which the electrolyte is discharged by means of at least one sacrificial anode mounted on a support structure, in particular on the propeller shaft of a ship, located in an area where the electrolyte flows at a relatively high velocity. In an apparatus for cathodic protection of metal surfaces immersed in seawater, in particular external surfaces of ship stern tube sealings, the means for attaching said sacrificial anode to said support structure partially and a lip-shaped protrusion extending from the casing, and the lip-shaped protrusion engages and couples with the support structure, so that the sacrificial anode is connected to the support structure. The present invention is solved by constructing a device characterized in that the attachment of the sacrificial anode to the support structure by screw connections, which would directly corrode the sacrificial anode, is avoided.
この場合、犠牲陽極の周囲を部分的に包囲するケーシン
グが作用し、犠牲陽極は、ケーシングによって包囲され
ない部分のみにおいて電解液の影響を受ける一方、ケー
シングによって包囲された部分は保護される。ケーシン
グの支持構造への取付けは、犠牲陽極を直接腐食させて
しまうネジ結合によらず純然たる係合結合によってなさ
れるため、犠牲陽極が緩んだり、あるいは割れて脱落す
るといったことが防止される。なぜならば、係合結合の
際に協同する表面が犠牲陽極に確実に隣接することによ
って電解液の侵入が防止され、犠牲陽極が腐食から保護
されるからである。In this case, a partially enclosing casing around the sacrificial anode comes into play, so that only the parts not surrounded by the casing are affected by the electrolyte, while the parts surrounded by the casing are protected. Since the casing is attached to the support structure by a pure engagement connection rather than by a screw connection which would directly corrode the sacrificial anode, the sacrificial anode is prevented from loosening or cracking and falling off. This is because, by ensuring that the cooperating surfaces are adjacent to the sacrificial anode during the mating connection, ingress of electrolyte is prevented and the sacrificial anode is protected from corrosion.
ドイツ国公開特許第２７３１９７６号および他の関連す
る公知文献によって開示された、金属表面に対する防食
システムの取付装置においては、犠牲陽極の取付手段は
、犠牲陽極を部分的に包囲するケーシングと、このケー
シングから延長されたリップ形状の突起部からなってお
り、後者は、支持構造と係合結合によって結合し、この
場合、犠牲陽極を直接腐食させてしまうネジ結合は回避
される。しかしながら、支持構造において、シャフトの
比較的高速による回転だけでなく、船体の比較的長時間
運動する部分が問題となる。In the device for attaching a corrosion protection system to a metal surface disclosed by DE 27 31 976 and other related known documents, the means for attaching the sacrificial anode include a casing that partially surrounds the sacrificial anode and a casing that partially surrounds the sacrificial anode. It consists of a lip-shaped projection extending from the support structure, the latter being connected to the support structure by a mating connection, in this case screw connections which would directly corrode the sacrificial anode are avoided. However, in the support structure, problems arise not only due to the relatively high speed rotation of the shaft, but also due to the relatively long moving parts of the hull.
これらの場合に、高速回転するシャフトの場合に生じる
問題が取り扱われていないことは明らかである。It is clear that in these cases the problems that arise in the case of high speed rotating shafts are not addressed.
さらに、米国特許第２０６７８３９号においては、犠牲
陽極は、船舶のプロペラ軸に、係合結合によって取付け
られている。この場合、犠牲陽極を直接腐食させるネジ
結合は回避される。しかし、犠牲陽極に対する直接の支
持部材が、これを包囲するケーシングとならず、双殻形
状を有する犠牲陽極の内部における、同様の双殻形状を
有する、プロペラ軸を挟むようにして取り囲むプッシュ
となっている。Further, in US Pat. No. 2,067,839, a sacrificial anode is attached to the propeller shaft of a ship by a mating connection. In this case, screw connections that would directly corrode the sacrificial anode are avoided. However, the direct support member for the sacrificial anode is not a casing that surrounds it, but a pusher that surrounds the propeller shaft, which has a similar double-shelled shape, inside the sacrificial anode that has a double-shelled shape. .
本発明による防食装置の好ましい実施例においては、犠
牲陽極を支持するケーシングのリップ形状の突起部が、
シャフトプッシュの固定フランジおよびプロペラ本体の
間に挟持され、ネジを用いることなく固定される。In a preferred embodiment of the corrosion protection device according to the invention, the lip-shaped projection of the casing supporting the sacrificial anode comprises:
It is sandwiched between the fixing flange of the shaft push and the propeller body, and is fixed without using screws.
本発明による防食装置のさらに別の実施例においては、
ケーシングおよびプロペラ本体の間に、耐塩水性を有し
、かつ電気絶縁性をもった材料からなるパフキンが接合
され、陰極防食は専ら船尾管シーリングに対して行われ
る。In yet another embodiment of the corrosion protection device according to the invention,
A puffkin made of saltwater-resistant and electrically insulating material is joined between the casing and the propeller body, and cathodic protection is applied exclusively to the stern tube sealing.
図面は、本発明の実施例の概略的な縦断面図を示したも
のである。The drawing shows a schematic longitudinal section through an embodiment of the invention.
プロペラ軸（１）が、軸受（２）に支持されている。A propeller shaft (1) is supported by a bearing (2).
この軸受（２）は、その海水側に面した端部に通常の固
定フランジ（６）を有している。さらに、この固定フラ
ンジ（６）には、プロペラ（３）が図示されない固定手
段によって固定されている。This bearing (2) has a conventional fixed flange (6) at its end facing the seawater side. Further, the propeller (3) is fixed to the fixed flange (6) by a fixing means (not shown).
プロペラ軸（１）は、船首側軸受（４）内の図示されな
い軸受プッシュ内に支持される。さらに軸受（２）上に
は、シーリングハウジング（５）が保持される。この実
施例では、シーリングハウジング（５）は４つのハウジ
ングリング（５，１）、（５，２）、（５，３）、（５
，４）から構成されており、各ハウジングリングの間に
は、それぞれ、弾性を有するリップパツキン（９，１）
、 （９，２）、 （９，３）が配置されている。The propeller shaft (1) is supported in a bearing push (not shown) in the bow bearing (4). Furthermore, a sealing housing (5) is held on the bearing (2). In this embodiment, the sealing housing (5) has four housing rings (5,1), (5,2), (5,3), (5
, 4), and between each housing ring is an elastic lip gasket (9, 1).
, (9,2), (9,3) are arranged.
軸受（２）の固定フランジ（６）およびプロペラ（３）
の後面の間には、Ｕ字形横断面を有すると共に、犠牲陽
極（８）を支持するケーシング（１０）の突起部（１０
，１）が挟持されている。さらにこの実施例では、ケー
シング（１０，１０，１）の接触面とプロペラ（３）後
面との間に、耐塩水性を有し、かつ電気絶縁性をもった
材料から形成されたパツキン（７）が取付けられている
。Fixed flange (6) of bearing (2) and propeller (3)
Between the rear faces there is a projection (10) of the casing (10) which has a U-shaped cross section and supports the sacrificial anode (8).
, 1) are held in place. Furthermore, in this embodiment, a packing (7) formed of a material having salt water resistance and electrical insulation properties is provided between the contact surface of the casing (10, 10, 1) and the rear surface of the propeller (3). is installed.
図面は、本発明の実施例の概略的な縦断面図である。
（１）・・−・・・プロペラ軸
（２） ・・・・・・プッシュ
（３》 ・・・・−・プロペラ
（６）・・・−・・固定フランジ
（７）・・・・−パツキン
（８》 −・・・・・ｔｉ性陽極
（１０）−−・・・・ケーシング
（ＩＬ １）・・・・突起部
特許出願人 プローム ウント フォスアクチエンゲゼ
ルシャフトThe drawing is a schematic longitudinal sectional view of an embodiment of the invention. (1) Propeller shaft (2) Push (3) Propeller (6) Fixed flange (7) Packing (8) --- Ti anode (10) --- Casing (IL 1) --- Protrusion Patent applicant Prohm und Voss Aktiengesellshaft
Claims (3)
構造、特に船舶のプロペラ軸に取付けられた少なくとも
１つの犠牲陽極を用いて、電解液中、特に海水中に浸さ
れた金属表面、特に船舶の船尾管シーリングの外側面を
陰極防食するための装置において、 前記犠牲陽極（８）を前記支持構造に取付けるための手
段が、前記犠牲陽極（８）を部分的に包囲するケーシン
グ（１０）と、前記ケーシング（１０）から延長された
リップ形状の突起部（１０．１）とからなっており、前
記リップ形状の突起部（１０．１）が前記支持構造（３
）に係合結合することによって、前記犠牲陽極（８）が
前記支持構造に取付けられ、前記犠牲陽極（８）を直接
腐食させるネジ結合による前記犠牲陽極（８）の前記支
持構造への取付けが回避されるものであることを特徴と
する装置。(1) a metal surface immersed in an electrolyte, in particular in seawater, with at least one sacrificial anode mounted on a support structure, in particular on the propeller shaft of a ship, located in an area where the electrolyte flows at a relatively high velocity; In a device for cathodic protection, in particular of the outer side of a stern tube sealing of a ship, the means for attaching said sacrificial anode (8) to said support structure include a casing (10) partially surrounding said sacrificial anode (8). ) and a lip-shaped protrusion (10.1) extending from the casing (10), and the lip-shaped protrusion (10.1) extends from the support structure (3).
), the sacrificial anode (8) is attached to the support structure by a mating connection to the support structure, and the sacrificial anode (8) is attached to the support structure by a screw connection that directly corrodes the sacrificial anode (8) A device characterized in that it is something to be avoided.
えた軸受（２）を有する船舶のプロペラ軸の場合に、前
記固定フランジ（６）が、前記犠牲陽極（８）のケーシ
ング（１０，１０．１）に対する支持構造となっており
、前記係合結合が、前記ケーシングの突起部（１０．１
）が前記固定フランジ（６）および前記プロペラ（３）
の間に挟持されることによってなされるものであること
を特徴とする第１請求項に記載の装置。(2) In the case of a propeller shaft of a ship having a bearing (2) with a fixed flange (6) for the propeller (3), said fixed flange (6) .1), and the engagement coupling is connected to the protrusion (10.1) of the casing.
) is the fixed flange (6) and the propeller (3).
The device according to claim 1, characterized in that the device is made by being held between.
グ（１０，１０．１）の表面と、前記プロペラ（３）の
後面との間に、耐塩水性を有しかつ電気絶縁性をもった
材料から形成されたパッキン（７）を有していることを
特徴とする第２請求項に記載の装置。(3) There is a space between the surface of the casing (10, 10.1) disposed on the rear surface of the propeller (3) and the rear surface of the propeller (3), which has salt water resistance and electrical insulation properties. 3. Device according to claim 2, characterized in that it has a packing (7) made of material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3930686A DE3930686A1 (en) | 1989-09-14 | 1989-09-14 | Cathodic protection of ship parts - with sacrificial anode held in cage clamped between parts to avoid loosening of anode and possible disconnection |
| DE3930686.0 | 1989-09-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03150381A true JPH03150381A (en) | 1991-06-26 |
| JP2739519B2 JP2739519B2 (en) | 1998-04-15 |
Family
ID=6389399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2243688A Expired - Lifetime JP2739519B2 (en) | 1989-09-14 | 1990-09-12 | Cathodic protection of sealing housing against bush supporting propeller shaft of ship |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2739519B2 (en) |
| KR (1) | KR0180705B1 (en) |
| CN (1) | CN1037457C (en) |
| DE (1) | DE3930686A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SG127687A1 (en) * | 2002-12-19 | 2006-12-29 | Beme Corrosion Internat As Ber | Sacrificial anode and fastening device |
| CN103614729A (en) * | 2013-11-14 | 2014-03-05 | 中国海洋石油总公司 | Testing device and method for cathode protection of indoor ship body |
| JP2016500041A (en) * | 2012-12-03 | 2016-01-07 | サムスン ヘビー インダストリーズ カンパニー リミテッド | Ship propulsion device, its installation method and installation disassembly method |
| CN115354333A (en) * | 2022-08-31 | 2022-11-18 | 广船国际有限公司 | Cathode protection device for marine shaft and ship |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103060819A (en) * | 2012-12-24 | 2013-04-24 | 青岛钢研纳克检测防护技术有限公司 | Installing device of remote site type auxiliary anode |
| DE102013213853A1 (en) * | 2013-07-16 | 2015-01-22 | Aktiebolaget Skf | Corrosion protected bearing component and bearing arrangement |
| FR3034827B1 (en) * | 2015-04-09 | 2017-10-13 | Skf Ab | BEARING WITH SACRIFICIAL ANODE |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5242533A (en) * | 1975-10-02 | 1977-04-02 | Denki Kagaku Kogyo Kk | Two-pack adhesive composition |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3726779A (en) * | 1971-01-11 | 1973-04-10 | J Morgan | Marine anticorrosion anode structure |
| US3769926A (en) * | 1971-10-18 | 1973-11-06 | Motorola Inc | Marine galvanic control circuit |
| US4089767A (en) * | 1976-07-22 | 1978-05-16 | Sabins Industries, Inc. | Anode system for the cathodic protection of off shore structures |
| US4549949A (en) * | 1984-06-07 | 1985-10-29 | Outboard Marine Corporation | Marine propulsion device including cathodic protection |
| DE3740679C2 (en) * | 1987-12-01 | 1993-10-14 | Blohm Voss Ag | Device for cathodic corrosion protection of a component on a stern tube of a ship |
-
1989
- 1989-09-14 DE DE3930686A patent/DE3930686A1/en active Granted
-
1990
- 1990-09-12 JP JP2243688A patent/JP2739519B2/en not_active Expired - Lifetime
- 1990-09-13 KR KR1019900014418A patent/KR0180705B1/en not_active IP Right Cessation
- 1990-09-14 CN CN90107841A patent/CN1037457C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5242533A (en) * | 1975-10-02 | 1977-04-02 | Denki Kagaku Kogyo Kk | Two-pack adhesive composition |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SG127687A1 (en) * | 2002-12-19 | 2006-12-29 | Beme Corrosion Internat As Ber | Sacrificial anode and fastening device |
| JP2016500041A (en) * | 2012-12-03 | 2016-01-07 | サムスン ヘビー インダストリーズ カンパニー リミテッド | Ship propulsion device, its installation method and installation disassembly method |
| US9862460B2 (en) | 2012-12-03 | 2018-01-09 | Samsung Heavy Ind. Co., Ltd. | Propeller for ship, and assembling method and disassembling method therefor |
| CN103614729A (en) * | 2013-11-14 | 2014-03-05 | 中国海洋石油总公司 | Testing device and method for cathode protection of indoor ship body |
| CN115354333A (en) * | 2022-08-31 | 2022-11-18 | 广船国际有限公司 | Cathode protection device for marine shaft and ship |
| CN115354333B (en) * | 2022-08-31 | 2023-08-04 | 广船国际有限公司 | Cathode protection device for marine shaft and ship |
Also Published As
| Publication number | Publication date |
|---|---|
| KR920006542A (en) | 1992-04-27 |
| DE3930686C2 (en) | 1993-04-29 |
| CN1037457C (en) | 1998-02-18 |
| KR0180705B1 (en) | 1999-02-18 |
| JP2739519B2 (en) | 1998-04-15 |
| CN1050228A (en) | 1991-03-27 |
| DE3930686A1 (en) | 1991-03-28 |
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