JPH08296024A - Driving member made of coated steel - Google Patents
Driving member made of coated steelInfo
- Publication number
- JPH08296024A JPH08296024A JP7118969A JP11896995A JPH08296024A JP H08296024 A JPH08296024 A JP H08296024A JP 7118969 A JP7118969 A JP 7118969A JP 11896995 A JP11896995 A JP 11896995A JP H08296024 A JPH08296024 A JP H08296024A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- coating
- metal oxide
- coated steel
- steel pipe
- 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.)
- Withdrawn
Links
Landscapes
- Coating By Spraying Or Casting (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は鋼材表面に塗覆装を施し
た鋼材に関し、さらに詳しくは、砂が混入した流氷のし
ゅう動に対する耐摩耗性が優れた塗覆装鋼製打ち込み部
材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel material coated on the surface of a steel material, and more particularly to a coated steel driving member having excellent wear resistance against sliding of drift ice mixed with sand.
【０００２】[0002]
【従来の技術】港湾や沿岸の海域、河川に構築される鋼
製構造物には鋼管杭、鋼管矢板や鋼矢板、連続壁鋼矢
板、異形鋼矢板、Ｈ型鋼などの鋼製打ち込み部材が使用
される。これらの鋼製構造物は長い年月使用するので、
鋼材の表面に防食性に優れたポリエチレンなどを被覆し
た防食が施される。2. Description of the Related Art Steel driving members such as steel pipe piles, steel pipe sheet piles and steel sheet piles, continuous wall steel sheet piles, deformed steel sheet piles, and H-shaped steels are used for steel structures constructed in ports, coastal waters and rivers. To be done. Since these steel structures have been used for many years,
Anticorrosion is applied by coating the surface of steel with polyethylene or the like, which has excellent anticorrosion properties.
【０００３】ところで、最近、天然ガスや石油を求め
て、エネルギー開発の環境が寒冷地に広がってきた。こ
のような寒冷地の構造物では、冬から春先にかけて流氷
がやってくる地域があり、このような環境では流氷のし
ゅう動に対する防食被覆の耐摩耗性が重要な課題であ
る。一般の海氷流氷や淡氷流氷の氷体中には砂が殆ど含
まれないので、このような流氷のしゅう動に対してはポ
リエチレン被覆でも十分な耐摩耗性がある。By the way, recently, the environment for energy development has spread to cold regions in search of natural gas and petroleum. In such a cold region structure, there is an area where the drift ice comes from winter to early spring, and in such an environment, the wear resistance of the anticorrosion coating against sliding of the drift ice is an important issue. Since almost no sand is contained in the ice bodies of ordinary sea ice floes and fresh ice floes, polyethylene coating has sufficient abrasion resistance against such sliding of ice floes.
【０００４】[0004]
【発明が解決しようとする課題】しかし、冬季に河川や
湖で河底や湖底の砂を巻き込んで全面凍結し、この砂を
多量に含んだ氷が流氷となって流出することがある。こ
のような砂を多量に含んだ流氷のしゅう動に対しては、
ポリエチレン被覆の耐摩耗性が不足する。すなわち、従
来技術では砂を多量に含んだ流氷のしゅう動に対する耐
摩耗性が優れた塗覆装鋼製打ち込み部材の実現が難しか
った。However, in winter, rivers and lakes may be caught in the bottom of the river or the sand of the lake and completely frozen, and ice containing a large amount of this sand may flow out as drift ice. For such drift of ice floes containing a large amount of sand,
The polyethylene coating lacks abrasion resistance. In other words, it has been difficult with the prior art to realize a coated steel driving member having excellent wear resistance against sliding of drift ice containing a large amount of sand.
【０００５】本発明は砂を多量に含んだ流氷のしゅう動
に対する耐摩耗性が優れた塗覆装鋼製打ち込み部材を提
供することを目的とする。An object of the present invention is to provide a driving member made of coated steel which is excellent in wear resistance against sliding of drift ice containing a large amount of sand.
【０００６】[0006]
【課題を解決するための手段】本発明者らは、前述の問
題点を解決すべく、砂が混入した流氷のしゅう動による
耐摩耗性に優れた塗覆装について鋭意検討した。その結
果、図１に示す如く、下地処理した鋼管杭１、図２に示
す鋼管矢板４や図３に示す鋼矢板５などの鋼材の表面
に、銅−ニッケル合金の溶射被膜２を施し、この銅−ニ
ッケル合金溶射被膜２を介して、さらに金属酸化物被膜
３をプラズマ溶射にて形成することによって、前述の問
題点が解決できることを見出し、本発明に至ったもので
ある。In order to solve the above-mentioned problems, the inventors of the present invention have made extensive studies on a coating covering excellent in abrasion resistance due to sliding of drift ice mixed with sand. As a result, as shown in FIG. 1, the surface of the steel material such as the steel pipe pile 1 subjected to the surface treatment, the steel pipe sheet pile 4 shown in FIG. 2 and the steel sheet pile 5 shown in FIG. The inventors have found that the above-mentioned problems can be solved by forming the metal oxide coating 3 by plasma spraying via the copper-nickel alloy sprayed coating 2, and have reached the present invention.
【０００７】以下に、本発明につき詳細に説明する。The present invention will be described in detail below.
【０００８】本発明に使用する鋼材とは、炭素鋼やステ
ンレス鋼などの合金鋼でできた鋼管杭、鋼管矢板、鋼矢
板、連続壁鋼矢板、異形鋼矢板、Ｈ型鋼などである。ま
た、主要部分が炭素鋼でできた鋼管の内面、外面や鋼矢
板の山面・谷面や爪部、鋼管矢板の表面・爪部内面や外
面、連続壁鋼矢板や異形鋼矢板の表面、Ｈ型鋼の表面に
ステンレス鋼やチタン、アルミニウム、ニッケル、銅な
どの金属あるいはニッケル−クロム−モリブテン合金、
ニッケル−クロム−モリブテン−タングステン合金など
の合金鋼を積層したクラッド鋼材も使用できる。The steel materials used in the present invention include steel pipe piles made of alloy steel such as carbon steel and stainless steel, steel pipe sheet piles, steel sheet piles, continuous wall steel sheet piles, deformed steel sheet piles, and H-shaped steels. In addition, the inner surface of steel pipes whose main parts are made of carbon steel, the outer surface and crests and troughs of steel sheet piles, the surface of steel pipe sheet piles, the inner and outer surfaces of claws, the surface of continuous wall steel sheet piles and deformed steel sheet piles, Metal such as stainless steel, titanium, aluminum, nickel, copper or nickel-chromium-molybdenum alloy on the surface of H-shaped steel,
A clad steel material in which alloy steels such as nickel-chromium-molybdenum-tungsten alloys are laminated can also be used.
【０００９】また、炭素鋼でできた鋼管の内面、外面や
鋼矢板の山面・谷面や爪部、鋼管矢板の表面・爪部内面
や外面、連続壁鋼矢板や異形鋼矢板の表面、Ｈ型鋼の表
面に亜鉛、アルミニウム、クロムなどの金属めっき、亜
鉛−アルミニウム、亜鉛−ニッケル、亜鉛−ニッケル−
クロムなどの合金めっき、これらの金属めっきや合金め
っきにシリカや酸化チタンなどの微粒子を分散した分散
めっきを施しためっき鋼材も使用できる。[0009] Further, the inner surface, outer surface and crests and troughs of steel sheet piles and claws, the surface of steel pipe sheet piles and inner and outer claws of steel pipes made of carbon steel, the surface of continuous wall steel sheet piles and deformed steel sheet piles, Metal plating of zinc, aluminum, chromium, etc. on the surface of H-section steel, zinc-aluminum, zinc-nickel, zinc-nickel-
It is also possible to use an alloy plating of chromium or the like, or a plated steel material obtained by subjecting these metal plating or alloy plating to dispersion plating in which fine particles such as silica or titanium oxide are dispersed.
【００１０】これらの鋼材と金属酸化物被膜とを直接接
着し、かつ流氷のしゅう動に耐える接着性を付与するの
は難しいので、両者の間に銅−ニッケル合金を溶射して
介在させ鋼材と銅−ニッケル合金被膜を接着し、そのの
ち、当該銅−ニッケル合金被膜の表面に金属酸化物をプ
ラズマ溶射して両者を接着する。Since it is difficult to directly bond these steel materials to the metal oxide coating and to impart the adhesiveness to withstand the sliding motion of the drift ice, a copper-nickel alloy is thermally sprayed between them to interpose the steel materials. The copper-nickel alloy coating is adhered, and then the surface of the copper-nickel alloy coating is plasma sprayed with a metal oxide to adhere the both.
【００１１】この場合、まず鋼材表面への銅−ニッケル
合金の溶射では、鋼材表面のスケールなどをブラスト処
理などで除去すると同時に表面に粗度を付与する。鋼材
と銅−ニッケル合金被膜の界面に流氷のしゅう動に耐え
る接着性を付与するには鋼材の表面粗度が重要で、当該
粗度が中心線平均粗さＲａで５〜１５μｍの範囲が望ま
しい。当該粗度が５μｍ未満であると、砂を含んだ流氷
によるしゅう動摩耗試験で金属酸化物被覆が部分的に剥
離する。当該粗度の上限値は、作業性の点から１５μｍ
程度が良い。In this case, first, in the thermal spraying of the copper-nickel alloy onto the surface of the steel material, scales and the like on the surface of the steel material are removed by blasting or the like, and at the same time roughness is imparted to the surface. The surface roughness of the steel material is important for imparting adhesiveness to the interface between the steel material and the copper-nickel alloy coating to withstand the sliding of drift ice, and the roughness is preferably in the range of 5 to 15 μm in terms of the center line average roughness Ra. . If the roughness is less than 5 μm, the metal oxide coating is partially peeled off in a sliding wear test with drift ice containing sand. The upper limit of the roughness is 15 μm from the viewpoint of workability.
The degree is good.
【００１２】このようにして表面粗度を付与した鋼材の
表面に、銅−ニッケル合金を溶射する。銅−ニッケル合
金としては、一般にモネル合金として市販されている合
金を、一般市販の金属溶射機で溶射する。この銅−ニッ
ケル合金の溶射被膜の厚みは５〜１５０μｍの範囲が望
ましい。当該膜厚が５μ未満では、砂混入流氷によるし
ゅう動摩耗試験で金属酸化物被覆が部分的に剥離する。
当該粗度の上限値は、作業性と経済性の点から１５０μ
ｍ程度が良い。A copper-nickel alloy is sprayed onto the surface of the steel material having the surface roughness thus imparted. As the copper-nickel alloy, an alloy that is generally commercially available as a Monel alloy is sprayed with a generally commercially available metal sprayer. The thickness of the copper-nickel alloy sprayed coating is preferably in the range of 5 to 150 μm. If the film thickness is less than 5 μm, the metal oxide coating is partly peeled off in the sliding wear test with sand-containing drift ice.
The upper limit of the roughness is 150μ in terms of workability and economy.
About m is good.
【００１３】また、銅−ニッケル合金を溶射した鋼材の
表面には、さらに砂を含んだ流氷によるしゅう動摩耗を
抑制するために、金属酸化物被覆をプラズマ溶射する。
この金属酸化物としては、酸化クロム、酸化チタン、酸
化アルミニウム、酸化ジルコニウム、グレーアルミナま
たはジルコニア・セリアが利用できる。鋼材の防食のた
めには当該金属酸化物被覆の厚みは０．２ｍｍ以上必要
で、この膜厚に該被覆の砂混入流氷によるしゅう動摩耗
速度の測定結果と、所要の耐用年数から計算して必要な
厚みを加算した厚みとする。当該金属酸化物の溶射方法
としては、プラズマ溶射などの金属酸化物組織が微細か
つ表面が平滑に仕上がる溶射方法が望ましい。Further, a metal oxide coating is plasma sprayed on the surface of the steel material sprayed with the copper-nickel alloy in order to suppress sliding wear due to drift ice containing sand.
As the metal oxide, chromium oxide, titanium oxide, aluminum oxide, zirconium oxide, gray alumina or zirconia-ceria can be used. The thickness of the metal oxide coating is required to be 0.2 mm or more to prevent corrosion of steel, and this thickness is calculated from the measurement result of the sliding wear rate of the coating containing sand drift ice and the required service life. The required thickness is added. As the method for spraying the metal oxide, a spraying method such as plasma spraying in which the metal oxide structure is fine and the surface is finished smoothly is desirable.
【００１４】本発明の構成を図１から図３を参照して説
明する。The structure of the present invention will be described with reference to FIGS.
【００１５】図１は、本発明の第１例として塗覆装鋼管
杭の断面を示す図である。FIG. 1 is a diagram showing a cross section of a coated steel pipe pile as a first example of the present invention.
【００１６】同図にはブラスト処理などで下地処理した
鋼管杭１と、その表面に溶射した銅−ニッケル合金溶射
被膜２と、その表面にプラズマ溶射した金属酸化物被膜
３が各々示されている。In the figure, there are shown a steel pipe pile 1 which has been pretreated by blasting or the like, a copper-nickel alloy sprayed coating 2 sprayed on its surface, and a metal oxide coating 3 plasma sprayed on its surface. .
【００１７】図２は本発明の第２例として塗覆装鋼管杭
の断面を示す図であり、同図にはブラスト処理などで下
地処理した鋼管矢板４と銅−ニッケル合金溶射被膜２
と、金属酸化物被膜３が各々示されている。FIG. 2 is a view showing a cross section of a coated steel pipe pile as a second example of the present invention. In FIG. 2, a steel pipe sheet pile 4 and a copper-nickel alloy sprayed coating 2 which have been subjected to an undercoat treatment such as blast treatment.
And the metal oxide coating 3 is shown respectively.
【００１８】図３は本発明の第３例として塗覆装鋼矢板
の一部断面を示す図であり、同図にはブラスト処理など
で下地処理した鋼矢板５と、銅−ニッケル合金溶射被膜
２と金属酸化物被膜３が各々示されている。FIG. 3 is a view showing a partial cross section of a coated and coated steel sheet pile as a third example of the present invention. In the figure, a steel sheet pile 5 which has been subjected to a base treatment such as blast treatment and a copper-nickel alloy sprayed coating. 2 and metal oxide coating 3 are shown respectively.
【００１９】[0019]
【作用】本発明は前述のとおり、塗覆装鋼材の表面の流
氷接触部分の表面に、銅−ニッケル合金の溶射被膜２を
介して金属酸化物被膜３をプラズマ溶射にて形成した塗
覆装鋼製打ち込み部材であるので、砂を多量に含んだ流
氷のしゅう動に対する耐摩耗性が優れ、北方の港湾、河
川、沖合構造物の建設に用いると長期に渡って優れた防
食性を発揮する。According to the present invention, as described above, the coating material is formed by plasma spraying the metal oxide coating 3 on the surface of the surface of the coating steel material in contact with the drift ice through the spray coating 2 of the copper-nickel alloy. As it is a steel driven member, it has excellent abrasion resistance against sliding of drift ice containing a large amount of sand, and when used for construction of northern ports, rivers, and offshore structures, it exhibits excellent corrosion resistance for a long time. .
【００２０】[0020]
【実施例】以下に、実施例により本発明を詳細に説明す
る。EXAMPLES The present invention will be described in detail below with reference to examples.
【００２１】［実施例１］幅１００ｍｍ×長さ１５０ｍ
ｍ×厚み９ｍｍの鋼板表面をグリットブラスト処理して
除錆し、粗度Ｒａを変えて素地調整した。さらに、前記
鋼板の表面に銅−ニッケル合金（モネル合金）を膜厚を
変えて金属溶射機で溶射した。次いで、その表面に酸化
クロム、酸化チタン、酸化アルミニウム、酸化ジルコニ
ウム、グレーアルミナまたはジルコニア・セリアの金属
酸化物を膜厚０．７ｍｍになるようにプラズマ溶射機で
溶射し、金属酸化物被覆鋼板を作製した。また、比較の
ために同じ寸法の鋼板に、通常のポリエチレンを膜厚３
ｍｍで被覆したポリエチレン被覆鋼板を作製した。これ
らの金属酸化物被覆鋼板とポリエチレン被覆鋼板の被覆
構成内容を表１と表２に示す。[Example 1] width 100 mm x length 150 m
The surface of a steel plate having m × thickness of 9 mm was grit blasted to remove rust, and the roughness Ra was changed to adjust the substrate. Further, a copper-nickel alloy (Monel alloy) was sprayed on the surface of the steel sheet with a metal sprayer while changing the film thickness. Next, metal oxide of chromium oxide, titanium oxide, aluminum oxide, zirconium oxide, gray alumina, or zirconia-ceria is sprayed on the surface with a plasma sprayer to a film thickness of 0.7 mm, and a metal oxide-coated steel sheet is obtained. It was made. For comparison, ordinary polyethylene is applied to a steel sheet of the same size with a film thickness of 3
A polyethylene-coated steel sheet coated with mm was prepared. Tables 1 and 2 show the coating composition of the metal oxide-coated steel sheet and the polyethylene-coated steel sheet.
【００２２】[0022]
【表１】 [Table 1]
【表２】 [Table 2]
【００２３】これらの金属酸化物被覆鋼板とポリエチレ
ン被覆鋼板の被覆面に、砂粒を均一に混合分散して製作
した淡水氷盤（幅１００ｍｍ×長さ１０００ｍｍ×厚み
１５０ｍｍ）の上に鉛直荷重０．９８ＭＰａを加えて押
し当て、そのまま被覆鋼板を往復しゅう動し摩耗試験し
た。淡水氷盤中の砂の平均粒子径は０．１４ｍｍ、砂の
混入量は１重量％であった。往復しゅう動の合計距離が
２０００ｍになるまで摩耗試験し、試験前と後の膜厚減
少量から、被覆の摩耗速度を求めて比較した。結果を表
３と表４に示す。A vertical load of 0. 98 MPa was added and pressed, and the coated steel plate was slid back and forth as it was to perform a wear test. The average particle size of sand in the fresh water ice disk was 0.14 mm, and the amount of sand mixed was 1% by weight. A wear test was conducted until the total distance of reciprocating sliding movement reached 2000 m, and the wear rate of the coating was obtained from the amount of film thickness reduction before and after the test and compared. The results are shown in Tables 3 and 4.
【００２４】[0024]
【表３】 [Table 3]
【表４】 [Table 4]
【００２５】表３から、鋼板の表面粗度Ｒａを５〜１５
μｍの範囲にした鋼板の表面に、モネル合金を膜厚が５
〜１５０μｍの範囲になるように溶射し、金属酸化物を
被覆した本発明の被覆鋼板（表１の実施例１〜９）は、
従来のポリエチレン被覆鋼板（表１の比較例１０）に比
較して、砂を混入した淡水氷盤のしゅう動に対する摩耗
速度が格段に小さく耐摩耗性に優れる。From Table 3, the surface roughness Ra of the steel sheet is 5 to 15
A Monel alloy film with a thickness of 5
The coated steel sheet of the present invention (Examples 1 to 9 in Table 1) which is sprayed to a range of up to 150 μm and coated with a metal oxide,
Compared with the conventional polyethylene-coated steel sheet (Comparative Example 10 in Table 1), the wear rate of the fresh water ice disk mixed with sand against sliding is significantly smaller and the wear resistance is excellent.
【００２６】これに対して、鋼板の表面粗度Ｒａが５μ
ｍ未満の金属酸化物被覆鋼板（表１の比較例１１）、モ
ネル合金の膜厚が５μｍ未満の金属酸化物被覆鋼板（表
２の比較例１２）や、鋼板表面粗度Ｒａが５μｍ未満で
かつモネル合金の膜厚も５μｍ未満の金属酸化物被覆鋼
板（表２の比較例１３）では、しゅう動摩耗試験中に金
属酸化物被覆が剥離し耐摩耗性が悪い。On the other hand, the surface roughness Ra of the steel sheet is 5 μm.
a metal oxide-coated steel sheet having a thickness of less than m (Comparative Example 11 in Table 1), a metal oxide coated steel sheet having a Monel alloy film thickness of less than 5 μm (Comparative Example 12 in Table 2), and a steel sheet surface roughness Ra of less than 5 μm. In addition, in the metal oxide-coated steel sheet having a Monel alloy film thickness of less than 5 μm (Comparative Example 13 in Table 2), the metal oxide coating peels off during the sliding wear test and wear resistance is poor.
【００２７】［実施例２］外径２１６ｍｍ×長さ５５０
０ｍｍ×厚み１２ｍｍの鋼管の外面をグリットブラスト
処理して除錆し、粗度Ｒａを９μｍに素地調整した。そ
の表面に銅−ニッケル合金（モネル合金）が膜厚５０μ
ｍの厚みになるように金属溶射機で溶射した。[Example 2] Outer diameter 216 mm x length 550
The outer surface of a steel pipe having a thickness of 0 mm and a thickness of 12 mm was grit blasted to remove rust, and the surface roughness Ra was adjusted to 9 μm. Copper-nickel alloy (Monel alloy) has a film thickness of 50μ on the surface.
Thermal spraying was performed with a metal sprayer to a thickness of m.
【００２８】次いで、その表面に酸化クロムを膜厚１ｍ
ｍになるようにプラズマ溶射機で溶射し、金属酸化物被
覆鋼管杭を作製した。Then, chromium oxide film having a thickness of 1 m is formed on the surface.
m was sprayed with a plasma sprayer to produce a metal oxide-coated steel pipe pile.
【００２９】比較のために、ポリエチレン被覆鋼管杭を
製造した。この金属酸化物被覆鋼管杭とポリエチレン被
覆鋼管杭を、砂を含んだ流氷が流下する河川出口に暴露
試験した。暴露試験河川の流氷の総流下距離は約２ｋｍ
／年、流氷中の砂の混入量は約０．７％であった。１年
間の暴露試験後、被覆の膜厚減少量を測定した結果、金
属酸化物被覆した鋼板を巻き付けた本発明の被覆鋼板杭
の金属酸化物被覆の膜厚減少量は０．４μｍであり、ポ
リエチレン被覆鋼管杭のポリエチレン被覆の摩耗量５２
μｍに比較して、格段に優れた耐摩耗性を発揮した。For comparison, polyethylene coated steel pipe piles were manufactured. The metal oxide coated steel pipe pile and the polyethylene coated steel pipe pile were subjected to an exposure test at the river outlet where the drift ice containing sand flows down. Exposure test The total flow distance of the drift ice in the river is about 2 km.
/ Year, the amount of sand mixed in the drift ice was about 0.7%. After the 1-year exposure test, the coating film thickness reduction amount was measured. As a result, the metal oxide coating film thickness reduction amount of the coated steel plate pile of the present invention wound with the metal oxide coated steel plate was 0.4 μm, Abrasion amount of polyethylene coating of polyethylene coated steel pipe pile 52
Compared to μm, it exhibited significantly superior wear resistance.
【００３０】[0030]
【発明の効果】本発明の塗覆装鋼製打ち込み部材は、鋼
材の表面の流氷接触部分の表面に、銅−ニッケル合金の
溶射被膜を介して金属酸化物被膜をプラズマ溶射して構
成するので、砂を含んだ流氷のしゅう動に対する耐摩耗
性が格段に優れ、摩耗による防食被覆の損耗が小さく、
長期に渡り優れた防食性を維持できる。The coated steel driving member of the present invention is formed by plasma spraying a metal oxide coating on the surface of the surface of the steel material in contact with the drift ice through a spray coating of a copper-nickel alloy. , The wear resistance against the sliding of drift ice containing sand is remarkably excellent, and the wear of the anticorrosion coating due to wear is small,
Excellent corrosion resistance can be maintained for a long time.
【図１】本発明の塗覆装鋼管杭の一部断面を示す図であ
る。FIG. 1 is a diagram showing a partial cross section of a coated steel pipe pile of the present invention.
【図２】本発明の塗覆装鋼管矢板の一部断面を示す図で
ある。FIG. 2 is a diagram showing a partial cross section of a coated steel pipe sheet pile of the present invention.
【図３】本発明の塗覆装鋼矢板の一部断面を示す図であ
る。FIG. 3 is a view showing a partial cross section of a coated steel sheet pile according to the present invention.
１ 鋼管杭 ２ 銅−ニッケル合金被膜 ３ 金属酸化物被膜 ４ 鋼管矢板 ５ 鋼矢板 1 Steel Pipe Pile 2 Copper-Nickel Alloy Coating 3 Metal Oxide Coating 4 Steel Pipe Sheet Pile 5 Steel Sheet Pile
Claims (2)
矢板５などの鋼材の表面に、銅−ニッケル合金の溶射被
膜２を介して金属酸化物被膜３をプラズマ溶射により形
成したことを特徴とする塗覆装鋼製打ち込み部材。1. A metal oxide coating 3 is formed by plasma spraying on a surface of a steel material such as a steel pipe pile 1, a steel pipe sheet pile 4 or a steel sheet pile 5 which has been subjected to a surface treatment, with a copper-nickel alloy spray coating 2 interposed therebetween. A characteristic steel-coated driving member.
化チタン、酸化アルミニウム、酸化ジルコニウム、グレ
ーアルミナまたは、ジルコニア・セリアであることを特
徴とする請求項１記載の塗覆装鋼製打ち込み部材。2. The coated steel driving member according to claim 1, wherein the metal oxide film 3 is chromium oxide, titanium oxide, aluminum oxide, zirconium oxide, gray alumina, or zirconia-ceria. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7118969A JPH08296024A (en) | 1995-04-21 | 1995-04-21 | Driving member made of coated steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7118969A JPH08296024A (en) | 1995-04-21 | 1995-04-21 | Driving member made of coated steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08296024A true JPH08296024A (en) | 1996-11-12 |
Family
ID=14749770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7118969A Withdrawn JPH08296024A (en) | 1995-04-21 | 1995-04-21 | Driving member made of coated steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08296024A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008531852A (en) * | 2005-03-03 | 2008-08-14 | レール・リキード−ソシエテ・アノニム・プール・レテュード・エ・レクスプロワタシオン・デ・プロセデ・ジョルジュ・クロード | Method for coating pipe parts or devices used to transport gaseous oxygen |
-
1995
- 1995-04-21 JP JP7118969A patent/JPH08296024A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008531852A (en) * | 2005-03-03 | 2008-08-14 | レール・リキード−ソシエテ・アノニム・プール・レテュード・エ・レクスプロワタシオン・デ・プロセデ・ジョルジュ・クロード | Method for coating pipe parts or devices used to transport gaseous oxygen |
| JP4838269B2 (en) * | 2005-03-03 | 2011-12-14 | レール・リキード−ソシエテ・アノニム・プール・レテュード・エ・レクスプロワタシオン・デ・プロセデ・ジョルジュ・クロード | Method for coating pipe parts or devices used to transport gaseous oxygen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20020702 |