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JP2004261023A - Wire for crawl - Google Patents

Wire for crawl Download PDF

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Publication number
JP2004261023A
JP2004261023A JP2003052436A JP2003052436A JP2004261023A JP 2004261023 A JP2004261023 A JP 2004261023A JP 2003052436 A JP2003052436 A JP 2003052436A JP 2003052436 A JP2003052436 A JP 2003052436A JP 2004261023 A JP2004261023 A JP 2004261023A
Authority
JP
Japan
Prior art keywords
wire
cupronickel
algae
copper
shellfish
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.)
Pending
Application number
JP2003052436A
Other languages
Japanese (ja)
Inventor
Hiroshi Yamada
廣志 山田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP2003052436A priority Critical patent/JP2004261023A/en
Publication of JP2004261023A publication Critical patent/JP2004261023A/en
Pending legal-status Critical Current

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  • Farming Of Fish And Shellfish (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive wire for a crawl preventing attachment of algae or shellfishes, having high strengths and excellent corrosion resistance. <P>SOLUTION: The wire for the crawl is provided with an outer layer 3 composed of cupronickel having 0.1-0.5 mm thickness on the surface of a steel wire 2. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、フグやカンパチ等を養殖するための生け簀の金網を構成するワイヤ(以下、生け簀用ワイヤという)に関する。
【0002】
従来の生け簀には、合成繊維製の漁網や亜鉛メッキを施した鉄製のワイヤを網合わせたものが使用されている。しかし、前者の合成繊維製のものは藻、貝類が付着しやすい。藻、貝類が付着すると、網目が閉塞されて酸素が生け簀内に充分供給されず、養殖魚が酸欠を起こすという問題が発生する。そのため、漁網を定期的に陸揚げして洗浄しなければならず、維持費がかかるという問題を有していた。
また、後者の亜鉛メッキを施した鉄製の漁網は、藻、貝類の付着は合成繊維製のものに比べて少ないが、金属製のため海水による腐食は避けられない。このため、予め腐食量を計算して線径を太くしたり、亜鉛メッキの厚みを厚くするなどの対策が講じられるが、それでも耐用年数は2〜3年といったところで、寿命は非常に短いという問題を有していた。
【発明が解決しようとする課題】
【0003】
上記藻や貝類の付着を防止する手段として、特開平2001−190179号公報には、銅又は銅合金製の生け簀用ワイヤが提案されている。これは、銅の微量金属作用(銅の腐食、すなわちイオンの溶出による抗菌作用)により藻、貝類の付着を防止するというものである。また、上記腐食を防止する手段として、特開平6−284837号公報には、耐食性の高いチタン製の生け簀用ワイヤが提案されている。
しかしながら、前者の銅又は銅合金の生け簀用ワイヤは、耐食性が劣るとともに強度が低いという問題がある。強度が低いと波や海流によって生じる引張力でワイヤが断線してしまう。
また、後者のチタンワイヤを使用したものは、藻や貝類の付着が防止でき、しかも強度が高いので断線も防止できるが、チタンは非常に高価な金属であり、チタンで構成した生け簀は価格が非常に高くなるといった欠点を有していた。
【0004】
従って、本発明は、藻や貝類の付着が防止でき、かつ強度が高いとともに耐食性に優れ、しかも安価な生け簀用ワイヤを提供することを課題とする。
【0005】
【特許文献1】
特開平2001−190179号公報
【0006】
【特許文献2】
特開平6−284837号公報
【課題を解決するための手段】
【0007】
本発明の生け簀用ワイヤは、鋼線の表面にキュプロニッケルからなる外層を設けたことを特徴とする。
【0008】
キュプロニッケルは、10〜30%のニッケルを含む銅ベースの合金であるから、銅の抗菌作用で藻、貝類の付着が防止でき、しかもニッケルによる耐食性も高い。さらに、芯が鋼線であるから、強度が高く安価である。
【0009】
上記構成において、キュプロニッケルの厚みは、0.1〜0.5mmであることが好ましい。というのは、0.1mm未満では薄すぎて藻、貝類の付着防止効果が得られず、0.5mmを越えるとコストが上がるともに、それ以上の効果が期待できないからである。
【0010】
【発明の実施の形態】
以下、本発明の実施の形態を図面に基づいて説明する。
【0011】
図1は、本発明の実施の形態を示す生け簀用ワイヤの横断面図を示す。
図1に示す生け簀用ワイヤ1は、鋼線2の表面に、厚さが0.1〜0.5mmのキュプロニッケルからなる外層3を設けたものである。
【0012】
鋼線は各種あるが、価格、加工性を考慮すると、一般的な硬鋼線材、ピアノ線材あるいはステンレス鋼線が好ましい。
【0013】
キュプロニッケルを鋼材表面にコーティングするには、溶融したキュプロニッケル中に鋼材を通してもよいし、銅とニッケルをそれぞれコーティングして、これを熱拡散させてキュプロニッケルとしてもよい。また、鋼材をステンレス鋼として、この表面を銅で覆い熱処理すれば、ステンレス鋼中のニッケルと銅とが拡散して表面をキュプロニッケルにすることもできる。
【0014】
【実施例】
ステンレス鋼線を製造する過程におけるスラブ熱間圧延前に、スラブ表面を銅で被覆して、これを熱間圧延で線材化した後、孔型圧延、冷間伸線加工を施して細径化して直径3mmの本発明に係る生け簀用ワイヤを製造した。表面層はキュプロニッケルで覆われているが、これはステンレス鋼のニッケルと熱間圧延前に被覆した銅とが、熱間圧延時の熱によって拡散してキュプロニッケルに変化したことによるものである。
【0015】
上記本発明の生け簀用ワイヤは芯材がステンレス鋼線であるから安価であり、かつ強度は高い。
また、従来のチタン線と合成繊維製のものと一緒に、実施に海中に浸漬して、腐食量および藻、貝類の付着を比較したが、本発明の生け簀用ワイヤは、チタンと同等の耐食性を示し、藻、貝類の付着もないことが確認された。
【0016】
【発明の効果】
本発明の生け簀ワイヤは、芯材が鋼線であるから安価である。また強度が高く、波や海流によって生じる引張力でワイヤが断線してしまうことが防止できる。さらに、表面をキュプロニッケルでコーティングしたから、耐食性に優れることはもちろんのこと、キュプロニッケル中の銅の抗菌効果によって、藻、貝類の付着が防止できる。
【図面の簡単な説明】
【図1】本発明の実施の形態を示す生け簀用ワイヤの横断面図を示す。
【符号の説明】
1 生け簀用ワイヤ
2 鋼線
3 キュプロニッケル
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a wire (hereinafter referred to as a wire for a cage) for forming a wire net of a cage for cultivating puffer fish, amberjack, and the like.
[0002]
Conventional fish cages used include fishing nets made of synthetic fibers and galvanized iron wires. However, in the former case made of synthetic fibers, algae and shellfish are liable to adhere. When algae and shellfish adhere, the mesh is closed, and oxygen is not sufficiently supplied into the cage, which causes a problem that the cultured fish is deprived of oxygen. For this reason, the fishing net has to be unloaded and washed periodically, which has a problem that the maintenance cost is high.
Also, the latter zinc-plated iron fishing nets are less likely to adhere to algae and shellfish than those made of synthetic fiber, but are inevitable by seawater because they are made of metal. For this reason, measures such as calculating the corrosion amount in advance to increase the wire diameter or increasing the thickness of galvanized plating are taken, but the service life is still very short when the useful life is only 2 to 3 years. Had.
[Problems to be solved by the invention]
[0003]
As a means for preventing the adhesion of the algae and shellfish, Japanese Unexamined Patent Publication No. 2001-190179 proposes a wire for cages made of copper or copper alloy. This is to prevent adhesion of algae and shellfish by the trace metal action of copper (corrosion of copper, ie, antibacterial action by elution of ions). Further, as means for preventing the above-mentioned corrosion, Japanese Unexamined Patent Publication No. 6-284837 proposes a titanium cage wire having high corrosion resistance.
However, the former copper or copper alloy cage wire has a problem that its corrosion resistance is poor and its strength is low. If the strength is low, the wire will break due to the tensile force generated by waves and ocean currents.
In addition, the latter using titanium wire can prevent the adhesion of algae and shellfish, and can prevent disconnection because of its high strength.However, titanium is a very expensive metal. It had the drawback of being very high.
[0004]
Therefore, an object of the present invention is to provide an inexpensive wire for a cage, which can prevent adhesion of algae and shellfish, and has high strength and excellent corrosion resistance.
[0005]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 2001-190179
[Patent Document 2]
JP-A-6-284837 [Means for Solving the Problems]
[0007]
The wire for cages of the present invention is characterized in that an outer layer made of cupronickel is provided on the surface of a steel wire.
[0008]
Cupronickel is a copper-based alloy containing 10 to 30% nickel, so that the antibacterial action of copper can prevent algae and shellfish from adhering and has high corrosion resistance due to nickel. Further, since the core is a steel wire, the strength is high and the cost is low.
[0009]
In the above configuration, the thickness of the cupronickel is preferably 0.1 to 0.5 mm. This is because if the thickness is less than 0.1 mm, the effect of preventing adhesion of algae and shellfish cannot be obtained because the thickness is too thin, and if the thickness exceeds 0.5 mm, the cost increases and no further effect can be expected.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0011]
FIG. 1 shows a cross-sectional view of a wire for a fish cage showing an embodiment of the present invention.
The wire 1 for a fish cage shown in FIG. 1 is provided with an outer layer 3 made of cupronickel having a thickness of 0.1 to 0.5 mm on the surface of a steel wire 2.
[0012]
There are various types of steel wires, but in consideration of cost and workability, general hard steel wires, piano wires or stainless steel wires are preferable.
[0013]
In order to coat cupronickel on the steel material surface, the steel material may be passed through molten cupronickel, or copper and nickel may be coated and thermally diffused into cupronickel. Further, if the steel material is made of stainless steel and this surface is covered with copper and heat-treated, nickel and copper in the stainless steel are diffused and the surface can be made cupronickel.
[0014]
【Example】
Before the slab hot rolling in the process of manufacturing stainless steel wire, the slab surface is coated with copper, which is made into a wire by hot rolling, and then subjected to groove rolling and cold drawing to reduce the diameter. Thus, a wire for a cage of 3 mm in diameter according to the present invention was manufactured. The surface layer is covered with cupronickel, because the nickel of stainless steel and the copper coated before hot rolling were diffused by heat during hot rolling and changed to cupronickel. .
[0015]
Since the core material is a stainless steel wire, the wire for a fish cage of the present invention is inexpensive and has high strength.
In addition, the conventional titanium wire and those made of synthetic fiber were immersed in the sea to conduct the tests, and the amount of corrosion and adhesion of algae and shellfish were compared. And no algae and shellfish were found to adhere.
[0016]
【The invention's effect】
The fish cage wire of the present invention is inexpensive because the core material is a steel wire. In addition, the wire has high strength and can prevent the wire from being broken by a tensile force generated by a wave or an ocean current. Furthermore, since the surface is coated with cupronickel, not only is it excellent in corrosion resistance, but also due to the antibacterial effect of copper in cupronickel, adhesion of algae and shellfish can be prevented.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a cage wire showing an embodiment of the present invention.
[Explanation of symbols]
1 Wire for living cage 2 Steel wire 3 Cupronickel

Claims (2)

鋼線の表面にキュプロニッケルからなる外層を設けたことを特徴とする生け簀用ワイヤ。A wire for a fish cage, wherein an outer layer made of cupronickel is provided on the surface of a steel wire. 外層の厚みが0.1〜0.5mmである請求項1に記載の生け簀用ワイヤ。The wire for a fish cage according to claim 1, wherein the thickness of the outer layer is 0.1 to 0.5 mm.
JP2003052436A 2003-02-28 2003-02-28 Wire for crawl Pending JP2004261023A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003052436A JP2004261023A (en) 2003-02-28 2003-02-28 Wire for crawl

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003052436A JP2004261023A (en) 2003-02-28 2003-02-28 Wire for crawl

Publications (1)

Publication Number Publication Date
JP2004261023A true JP2004261023A (en) 2004-09-24

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ID=33117310

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003052436A Pending JP2004261023A (en) 2003-02-28 2003-02-28 Wire for crawl

Country Status (1)

Country Link
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009089970A1 (en) * 2008-01-18 2009-07-23 Nv Bekaert Sa Aquaculture net with high-tensile steel wires
WO2009095135A1 (en) * 2008-01-30 2009-08-06 Nv Bekaert Sa Aquaculture net with steel wires coated with metal strip
WO2010094570A1 (en) 2009-02-19 2010-08-26 Nv Bekaert Sa Aquaculture net with cleaned metal wires
WO2010094569A1 (en) 2009-02-19 2010-08-26 Nv Bekaert Sa Aquaculture net with pre-oxidized metal wires
JP2012506708A (en) * 2008-10-28 2012-03-22 ジェオブルッグ・アーゲー Net especially for fish cage container and method and apparatus for manufacturing the same
JP2016019500A (en) * 2014-07-15 2016-02-04 新日鐵住金株式会社 Antifouling plated steel wire for marine mesh, and marine mesh manufactured from plated steel wire
CN105881992A (en) * 2016-05-10 2016-08-24 上海理工大学 Copper steel composite material for seawater enclosing aquaculture fishing net and manufacturing method for copper steel composite material

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011509664A (en) * 2008-01-18 2011-03-31 ナムローゼ・フェンノートシャップ・ベーカート・ソシエテ・アノニム Aquaculture net with high strength steel wire
US8534227B2 (en) 2008-01-18 2013-09-17 Nv Bekaert Sa Aquaculture net with high-tensile steel wires
AU2008347375B2 (en) * 2008-01-18 2013-04-04 Nv Bekaert Sa Aquaculture net with high-tensile steel wires
CN101909435B (en) * 2008-01-18 2012-12-19 贝卡尔特股份有限公司 Aquaculture net with high-tensile steel wires
WO2009089970A1 (en) * 2008-01-18 2009-07-23 Nv Bekaert Sa Aquaculture net with high-tensile steel wires
CN101909435A (en) * 2008-01-18 2010-12-08 贝卡尔特股份有限公司 Aquaculture net with high tensile strength steel wire
CN101909433A (en) * 2008-01-30 2010-12-08 贝卡尔特股份有限公司 Aquaculture net with steel wires coated with metal strips
JP2011510637A (en) * 2008-01-30 2011-04-07 ナムローゼ・フェンノートシャップ・ベーカート・ソシエテ・アノニム Aquaculture nets with metal strip coated steel wire
CN101909433B (en) * 2008-01-30 2012-12-19 贝卡尔特股份有限公司 Aquaculture net with steel wires coated with metal strips
US8393297B2 (en) 2008-01-30 2013-03-12 Nv Bekaert Sa Aquaculture net with steel wires coated with metal strip
AU2008349714B2 (en) * 2008-01-30 2013-09-12 Nv Bekaert Sa Aquaculture net with steel wires coated with metal strip
WO2009095135A1 (en) * 2008-01-30 2009-08-06 Nv Bekaert Sa Aquaculture net with steel wires coated with metal strip
JP2012506708A (en) * 2008-10-28 2012-03-22 ジェオブルッグ・アーゲー Net especially for fish cage container and method and apparatus for manufacturing the same
WO2010094569A1 (en) 2009-02-19 2010-08-26 Nv Bekaert Sa Aquaculture net with pre-oxidized metal wires
WO2010094570A1 (en) 2009-02-19 2010-08-26 Nv Bekaert Sa Aquaculture net with cleaned metal wires
JP2016019500A (en) * 2014-07-15 2016-02-04 新日鐵住金株式会社 Antifouling plated steel wire for marine mesh, and marine mesh manufactured from plated steel wire
CN105881992A (en) * 2016-05-10 2016-08-24 上海理工大学 Copper steel composite material for seawater enclosing aquaculture fishing net and manufacturing method for copper steel composite material

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