JPH06248472A - Corrosion resistant and wear resistant multilayer metal film and its formation - Google Patents
Corrosion resistant and wear resistant multilayer metal film and its formationInfo
- Publication number
- JPH06248472A JPH06248472A JP5649593A JP5649593A JPH06248472A JP H06248472 A JPH06248472 A JP H06248472A JP 5649593 A JP5649593 A JP 5649593A JP 5649593 A JP5649593 A JP 5649593A JP H06248472 A JPH06248472 A JP H06248472A
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- Japan
- Prior art keywords
- resistant
- corrosion
- plating layer
- layer
- metal
- 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.)
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- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、耐食・耐摩耗性を備え
た多層金属被膜及びその製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-layer metal coating having corrosion resistance and wear resistance and a method for producing the same.
【０００２】[0002]
【従来の技術】従来、鉄鋼材料の耐摩耗性を向上させる
には、表面に硬度の大きな金属のめっき（例えば、硬質
クロムめっき）を行なっていた。また、鉄鋼材料の耐食
性を向上させるには、母材よりも優先的に腐食する金属
（亜鉛、アルミニウム等）、あるいは母材よりも耐食性
が良好で、かつ母材を環境から遮断する金属被膜（ニッ
ケル、スズ等）のめっきを行なっていた。また、耐食性
と耐摩耗性の両方が要求されるような場合、まず母材上
に耐食性の良好なニッケル又はニッケル−リンめっきを
施工した後、さらに、その上面に耐摩耗性を備えた硬質
クロムめっきを施工することがある。通常、めっき層に
はピンホール等の微小な欠陥が存在するが、被膜の融点
付近の温度で熱処理を行なうことによって、欠陥の減少
や母材との密着性の向上を図ることができる。また、被
膜の密着性を向上させるため、母材とめっきとの間に別
の金属のめっきを中間層として作製することもある。2. Description of the Related Art Conventionally, in order to improve the wear resistance of a steel material, the surface of a metal having a high hardness has been plated (for example, hard chrome plating). Further, in order to improve the corrosion resistance of the steel material, a metal that corrodes preferentially over the base material (zinc, aluminum, etc.), or a metal coating that has better corrosion resistance than the base material and shields the base material from the environment ( Nickel, tin, etc.) were plated. When both corrosion resistance and wear resistance are required, first nickel or nickel-phosphorus plating with good corrosion resistance is applied on the base material, and then hard chromium with wear resistance is provided on the upper surface. Plating may be applied. Usually, minute defects such as pinholes are present in the plating layer, but by performing heat treatment at a temperature near the melting point of the coating, it is possible to reduce the defects and improve the adhesion to the base material. In addition, in order to improve the adhesion of the coating film, plating of another metal may be formed as an intermediate layer between the base material and the plating.
【０００３】特開平３−２４７７７９号公報には、金属
材料の表面にニッケル、亜鉛、アルミニウム、スズ等の
金属めっきを施したのち、さらに金属めっき表面にブラ
スト処理してから１８−８ステンレス鋼、１３Ｃｒステ
ンレス鋼等の金属又は酸化クロム、窒化クロム、タング
ステンカーバイド等のセラミック材の耐摩耗性溶射皮膜
を被覆するようにした耐食耐摩耗性複合皮膜の製造方法
が記載されている。特開昭６０−１４９７６２号公報に
は、Ｎｉ−Ｃｒ合金からなる溶射材料を鉄基合金素材に
溶射して被覆させる耐食溶射被覆処理方法が記載されて
いる。特開平２−４９５０号公報には、Ｎｉ、Ｃｏ、Ｆ
ｅ等からなる２種類の合金をそれぞれ第１層、第２層と
して溶射した鋼板を、８００〜１３００℃の温度で加熱
して第１層を緻密層にするとともに、鋼板と緻密層の間
及び緻密層と第２層の間に拡散層を形成させて鋼板に対
する被覆層の密着性を向上させるようにした耐食性及び
耐摩耗性に優れた表面処理鋼板の製造方法が記載されて
いる。特開平４−２６７７７号公報には、チタン又はチ
タン合金の表面を酸洗し、ＣｕあるいはＮｉのストライ
クめっきを施し、さらにＮｉあるいはＮｉ−Ｐ合金を電
気めっきした後、真空加熱し、表面活性化処理した後、
耐熱耐摩耗皮膜を形成させ、表面を粗面化して固定潤滑
皮膜を形成させて耐熱性、耐摩耗性、耐摺動性を向上さ
せる方法が記載されている。In Japanese Patent Laid-Open No. 3-247779, 18-8 stainless steel is prepared by plating the surface of a metal material with metal such as nickel, zinc, aluminum or tin, and then blasting the surface of the metal. A method for producing a corrosion-resistant and wear-resistant composite coating is described in which a wear-resistant sprayed coating of a metal such as 13Cr stainless steel or a ceramic material such as chromium oxide, chromium nitride, or tungsten carbide is coated. Japanese Unexamined Patent Publication No. 60-149762 discloses a corrosion-resistant thermal spray coating method of spraying a thermal spray material made of a Ni-Cr alloy onto an iron-based alloy material. Japanese Patent Laid-Open No. 2-4950 discloses Ni, Co, F.
A steel sheet sprayed with two kinds of alloys such as e as a first layer and a second layer, respectively, is heated at a temperature of 800 to 1300 ° C. to make the first layer a dense layer, and between the steel sheet and the dense layer and A method for producing a surface-treated steel sheet having excellent corrosion resistance and wear resistance in which a diffusion layer is formed between the dense layer and the second layer to improve the adhesion of the coating layer to the steel sheet is described. In JP-A-4-26777, the surface of titanium or a titanium alloy is pickled, strike-plated with Cu or Ni, electroplated with Ni or Ni-P alloy, and then vacuum-heated to activate the surface. After processing
A method for improving heat resistance, wear resistance and sliding resistance by forming a heat resistant and wear resistant film and roughening the surface to form a fixed lubricating film is described.
【０００４】[0004]
【発明が解決しようとする課題】しかし、例えば、海水
のように腐食性の強い環境で、高い面圧が加わるような
使用条件においては、被膜自体の耐食性と耐摩耗性の
他、密着性にも優れていることが要求される。耐摩耗性
に優れるクロムめっきは、膜自体の耐食性は優れている
が、膜中に欠陥が存在するため母材に腐食が生じやす
い。しかし、クロムめっきは高温に加熱すると硬度が低
下するため、熱処理による膜の緻密化が行なえない。し
たがって、クロムめっきと母材との間に耐食性めっき層
を形成する必要があるが、代表的な耐食性めっきである
ニッケル又はニッケル−リンめっき層は、一般にクロム
めっき層との密着性が不足するため、摩擦によるクロム
めっき層の剥離を生じやすい。また、シールド掘削機ジ
ャッキに利用する場合、その大型化に伴って、めっきの
損傷事故が発生しやすくなっており、これを防止する必
要もある。However, for example, in a corrosive environment such as seawater, under a service condition in which a high surface pressure is applied, not only the corrosion resistance and wear resistance of the coating itself but also the adhesion Is also required to be excellent. Chromium plating, which has excellent wear resistance, has excellent corrosion resistance of the film itself, but since there are defects in the film, corrosion easily occurs in the base material. However, when chromium plating is heated to a high temperature, the hardness decreases, so that the film cannot be densified by heat treatment. Therefore, it is necessary to form a corrosion-resistant plating layer between the chromium plating and the base material, but nickel or nickel-phosphorus plating layer, which is a typical corrosion-resistant plating, generally lacks adhesion with the chromium plating layer. , The chromium plating layer is easily peeled off due to friction. Further, when it is used for a shield excavator jack, the accident of plating damage is likely to occur due to the increase in size thereof, and it is necessary to prevent this.
【０００５】特開平３−２４７７７９号公報記載の方法
は、熱処理を行なうものではないので、めっき層の密着
力が不足し、耐食性も十分でなかった。特開昭６０−１
４９７６２号公報、特開平２−４９５０号公報記載の方
法は、高温での熱処理を行なうものであるが、クロムめ
っきは高温に加熱すると硬度が低下するので、耐摩耗性
が十分でなかった。特開平４−２６７７７号公報記載の
方法は、チタン又はチタン合金の表面にめっきを施すも
のであり、本発明で用いる多層金属被膜にそのまま適用
できるものではない。本発明は上記の点に鑑みなされた
もので、中間層として耐食性が比較的良好で、かつ融点
が低い金属のめっきを用いることにより、薄い被膜であ
っても熱処理によって耐食性及び母材との密着性を向上
させるとともに、熱処理温度を低く保つことでクロムめ
っき層の硬度の低下を防いで、耐摩耗性も備えた多層金
属被膜及びその製造方法を提供することを目的としてい
る。Since the method described in Japanese Patent Laid-Open No. 3-247779 does not perform heat treatment, the adhesion of the plating layer is insufficient and the corrosion resistance is not sufficient. JP 60-1
The methods described in Japanese Patent Publication No. 49762 and Japanese Patent Laid-Open No. 2-4950 carry out heat treatment at a high temperature, but chromium plating has insufficient hardness when heated to a high temperature, and therefore has insufficient abrasion resistance. The method described in Japanese Patent Laid-Open No. 26777/1992 is a method of plating the surface of titanium or a titanium alloy, and cannot be directly applied to the multilayer metal coating used in the present invention. The present invention has been made in view of the above points, corrosion resistance is relatively good as the intermediate layer, and by using a metal plating having a low melting point, even a thin film is heat-resistant and adheres to the base material by heat treatment. It is an object of the present invention to provide a multi-layered metal coating having improved wear resistance and abrasion resistance, in which the hardness of the chromium plating layer is prevented from decreasing by keeping the heat treatment temperature low, and a method for producing the same.
【０００６】[0006]
【課題を解決するための手段】上記の目的を達成するた
めに、本発明の耐食・耐摩耗多層金属被膜は、図１及び
図２に示すように、金属母材１の表面に密着性及び耐食
性を備えた低融点金属めっき層２を形成し、この低融点
金属めっき層２の上面に耐摩耗性硬質クロムめっき層３
を形成してなることを特徴としている。本発明の耐食・
耐摩耗多層金属被膜は、図３及び図４に示すように、金
属母材１の表面に耐食性ニッケルめっき層又は耐食性ニ
ッケル−リンめっき層からなる耐食性ニッケル系めっき
層６を形成し、この耐食性ニッケル系めっき層６の上面
に密着性及び耐食性を備えた低融点金属めっき層２を形
成し、さらに、この低融点金属めっき層２の上面に耐摩
耗性硬質クロムめっき層３を形成してなることを特徴と
している。In order to achieve the above object, the corrosion-resistant and wear-resistant multi-layer metal coating of the present invention, as shown in FIG. 1 and FIG. A low melting point metal plating layer 2 having corrosion resistance is formed, and an abrasion resistant hard chromium plating layer 3 is formed on the upper surface of the low melting point metal plating layer 2.
It is characterized by forming. Corrosion resistance of the present invention
As shown in FIGS. 3 and 4, the wear-resistant multi-layer metal coating forms a corrosion-resistant nickel-based plating layer 6 composed of a corrosion-resistant nickel plating layer or a corrosion-resistant nickel-phosphorus plating layer on the surface of the metal base material 1, and the corrosion-resistant nickel plating layer 6 is formed. A low melting point metal plating layer 2 having adhesion and corrosion resistance is formed on the upper surface of the system plating layer 6, and further, an abrasion resistant hard chromium plating layer 3 is formed on the upper surface of the low melting point metal plating layer 2. Is characterized by.
【０００７】また、本発明の耐食・耐摩耗多層金属被膜
の製造方法は、図１及び図２に示すように、金属母材１
上に低融点金属めっきを施した後、低融点金属めっき層
２の上面に耐摩耗性硬質クロムめっき層３を形成し、２
００〜４００℃での熱処理を施して、クロムめっきの硬
度を低下させずに耐食性及び密着性を向上させることを
特徴としている。本発明の耐食・耐摩耗多層金属被膜の
製造方法は、図３及び図４に示すように、金属母材１上
に耐食性ニッケルめっき層又は耐食性ニッケル−リンめ
っき層からなる耐食性ニッケル系めっき層６を施した
後、この耐食性ニッケル系めっき層６の上面に低融点金
属めっき層２を形成し、さらに、この低融点金属めっき
層２の上面に耐摩耗性硬質クロムめっき層３を形成した
後、２００〜４００℃での熱処理を施して、クロムめっ
きの硬度を低下させずに耐食性及び密着性を向上させる
ことを特徴としている。The method for producing a corrosion-resistant and wear-resistant multi-layer metal coating according to the present invention, as shown in FIGS.
After the low melting point metal plating is applied on top, the wear resistant hard chromium plating layer 3 is formed on the upper surface of the low melting point metal plating layer 2 and
It is characterized in that it is subjected to a heat treatment at 00 to 400 ° C. to improve the corrosion resistance and the adhesiveness without lowering the hardness of the chromium plating. As shown in FIGS. 3 and 4, the method for producing a corrosion-resistant / wear-resistant multi-layer metal coating of the present invention includes a corrosion-resistant nickel-based plating layer 6 composed of a corrosion-resistant nickel plating layer or a corrosion-resistant nickel-phosphorus plating layer on the metal base material 1. After forming the low-melting-point metal plating layer 2 on the upper surface of the corrosion-resistant nickel-based plating layer 6, and further forming the wear-resistant hard chromium plating layer 3 on the upper surface of the low-melting-point metal plating layer 2, It is characterized in that it is subjected to heat treatment at 200 to 400 ° C. to improve corrosion resistance and adhesion without lowering the hardness of the chromium plating.
【０００８】なお、熱処理温度が２００℃未満の場合
は、低融点金属が融解せず、したがってクラック４の内
部を埋めることができないという不具合がある。一方、
熱処理温度が４００℃を超える場合は、クロムめっき層
の硬度が低下するという不具合がある。低融点金属とし
ては、スズ（融点：２３２℃）、鉛（融点：３２７℃）
等が用いられる。When the heat treatment temperature is lower than 200 ° C., the low melting point metal does not melt, so that the inside of the crack 4 cannot be filled. on the other hand,
If the heat treatment temperature exceeds 400 ° C., there is a problem that the hardness of the chromium plating layer decreases. As the low melting point metal, tin (melting point: 232 ° C.), lead (melting point: 327 ° C.)
Etc. are used.
【０００９】[0009]
【実施例】以下、本発明を実施例に基づいてさらに詳細
に説明するが、本発明は下記実施例に何ら限定されるも
のではなく、その要旨を変更しない範囲において適宜変
更して実施することが可能なものである。 実施例１ 図１及び図２は、本発明の耐食・耐摩耗多層金属被膜の
一実施例を示している。本実施例は、金属母材として鉄
系母材を用い、低融点金属としてスズを用いた場合を示
している。鉄系母材１の表面に、電解めっきによりスズ
めっき層２を、約５μmの厚さで形成した。ついで、ス
ズめっき層２の上に、硬質クロムめっき層３を、約５０
μmの厚さで形成した（図１参照）。これを電気炉内
で、スズの融点（２３２℃）付近の温度に一定時間保
ち、スズめっき層２中にあるピンホール等の微小な欠陥
を減少させるとともに、硬質クロムめっき層３中のクラ
ック４も溶融スズで塞ぐようにした。なお、クロムめっ
きの硬度の低下を防ぐため、加熱保持温度は最大でも４
００℃以下とした。この結果、図２に示すように、クラ
ック４内に溶融したスズ５が流入して、クラック４を塞
いでいた。EXAMPLES The present invention will be described in more detail based on the following examples, but the invention is not intended to be limited to the following examples, and various modifications may be made without departing from the scope of the invention. Is possible. Example 1 FIGS. 1 and 2 show an example of the corrosion-resistant and wear-resistant multilayer metal coating of the present invention. This example shows a case where an iron-based base material is used as the metal base material and tin is used as the low-melting point metal. A tin plating layer 2 having a thickness of about 5 μm was formed on the surface of the iron-based base material 1 by electrolytic plating. Then, the hard chromium plating layer 3 is applied to the tin plating layer 2 by about 50
It was formed with a thickness of μm (see FIG. 1). This is kept in the electric furnace at a temperature near the melting point of tin (232 ° C.) for a certain period of time to reduce minute defects such as pinholes in the tin plating layer 2 and to reduce cracks 4 in the hard chromium plating layer 3. I also tried to plug it with molten tin. In order to prevent the hardness of the chrome plating from decreasing, the heating and holding temperature should be 4 at maximum.
The temperature was set to 00 ° C or lower. As a result, as shown in FIG. 2, the molten tin 5 flowed into the crack 4 and blocked the crack 4.
【００１０】実施例２ 図３及び図４は、本発明の耐食・耐摩耗多層金属被膜の
他の実施例を示している。本実施例は、金属母材として
鉄系母材の上面に形成した耐食性ニッケルめっき層を用
い、低融点金属としてスズを用いた場合を示している。
鉄系母材１の表面に、耐食性ニッケルめっき層６を約３
０μmの厚さで形成し、この耐食性ニッケルめっき層６
の上面に電解めっきによりスズめっき層２を、約５μm
の厚さで形成した。ついで、スズめっき層２の上に、硬
質クロムめっき層３を、約５０μmの厚さで形成した
（図３参照）。これを電気炉内で、スズの融点（２３２
℃）付近の温度に一定時間保ち、スズめっき層２中にあ
るピンホール等の微小な欠陥を減少させるとともに、硬
質クロムめっき層３中のクラック４も溶融スズで塞ぐよ
うにした。なお、クロムめっきの硬度の低下を防ぐた
め、加熱保持温度は最大でも４００℃以下とした。この
結果、図４に示すように、クラック４内に溶融したスズ
５が流入して、クラック４を塞いでいた。Embodiment 2 FIGS. 3 and 4 show another embodiment of the corrosion-resistant and wear-resistant multilayer metal coating of the present invention. This example shows a case where a corrosion-resistant nickel plating layer formed on the upper surface of an iron-based base material is used as the metal base material and tin is used as the low melting point metal.
Approximately 3 corrosion resistant nickel plating layers 6 on the surface of the iron base material 1.
This corrosion-resistant nickel plating layer 6 is formed with a thickness of 0 μm.
Approximately 5 μm of tin plating layer 2 by electrolytic plating on the upper surface of
Formed with a thickness of. Then, the hard chromium plating layer 3 was formed on the tin plating layer 2 to a thickness of about 50 μm (see FIG. 3). This was placed in an electric furnace and the melting point of tin (232
(° C) for a certain period of time to reduce minute defects such as pinholes in the tin plating layer 2 and to close the cracks 4 in the hard chromium plating layer 3 with molten tin. The heating and holding temperature was set to 400 ° C. or lower at the maximum in order to prevent the hardness of the chrome plating from decreasing. As a result, as shown in FIG. 4, the molten tin 5 flowed into the crack 4 and blocked the crack 4.
【００１１】[0011]
【発明の効果】本発明は上記のように構成されているの
で、つぎのような効果を奏する。 （１） 低融点で、かつ耐食性の良好な金属膜とクロム
めっきを併用し、低温での熱処理を行なうことにより、
クロムめっきの硬度を保ったまま耐食性と密着性を向上
させることができ、耐摩耗性も向上する。 （２） めっきの損傷が起こらないので、トンネル掘削
機用スラストジャッキ等に利用すれば、その耐久性を向
上させることができる。Since the present invention is configured as described above, it has the following effects. (1) By using a metal film having a low melting point and good corrosion resistance in combination with chromium plating and performing heat treatment at a low temperature,
Corrosion resistance and adhesion can be improved while maintaining the hardness of chrome plating, and wear resistance is also improved. (2) Since the plating is not damaged, the durability can be improved by using it in a thrust jack for a tunnel excavator or the like.
【図１】本発明の耐食・耐摩耗多層金属被膜の一実施例
を示す断面説明図である。FIG. 1 is a sectional explanatory view showing an example of a corrosion-resistant / abrasion-resistant multilayer metal coating of the present invention.
【図２】図１において、クラック内に低融点金属が流入
した状態を示す断面説明図である。FIG. 2 is a cross-sectional explanatory view showing a state where a low melting point metal has flowed into cracks in FIG.
【図３】本発明の耐食・耐摩耗多層金属被膜の他の実施
例を示す断面説明図である。FIG. 3 is a cross-sectional explanatory view showing another embodiment of the corrosion resistant / wear resistant multilayer metal coating of the present invention.
【図４】図３において、クラック内に低融点金属が流入
した状態を示す断面説明図である。FIG. 4 is a cross-sectional explanatory view showing a state where a low melting point metal has flowed into the crack in FIG.
【符号の説明】 １ 金属母材 ２ 低融点金属めっき層 ３ 硬質クロムめっき層 ４ ひび割れ部（クラック） ５ クラック内に流入した融解した低融点金属 ６ 耐食性ニッケル系めっき層[Explanation of symbols] 1 metal base material 2 low melting point metal plating layer 3 hard chrome plating layer 4 cracks (cracks) 5 melted low melting point metal flowing into cracks 6 corrosion resistant nickel plating layer
───────────────────────────────────────────────────── フロントページの続き (72)発明者 山本 彰利 兵庫県明石市川崎町１番１号 川崎重工業 株式会社明石工場内 (72)発明者 岡崎 章三 兵庫県明石市川崎町１番１号 川崎重工業 株式会社明石工場内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akito Yamamoto 1-1 Kawasaki-cho, Akashi-shi, Hyogo Kawasaki Heavy Industries Ltd. Akashi Plant (72) Inventor Shozo Okazaki 1-1, Kawasaki-cho, Akashi-shi, Hyogo Kawasaki Heavy industry Akashi factory
Claims (4)
性を備えた低融点金属めっき層（２）を形成し、この低
融点金属めっき層（２）の上面に耐摩耗性硬質クロムめ
っき層（３）を形成してなることを特徴とする耐食・耐
摩耗多層金属被膜。1. A low melting point metal plating layer (2) having adhesion and corrosion resistance is formed on the surface of a metal base material (1), and wear-resistant hard chromium is formed on the upper surface of this low melting point metal plating layer (2). A corrosion-resistant and wear-resistant multi-layer metal coating comprising a plated layer (3).
めっき層又は耐食性ニッケル−リンめっき層からなる耐
食性ニッケル系めっき層（６）を形成し、この耐食性ニ
ッケル系めっき層（６）の上面に密着性及び耐食性を備
えた低融点金属めっき層（２）を形成し、さらに、この
低融点金属めっき層（２）の上面に耐摩耗性硬質クロム
めっき層（３）を形成してなることを特徴とする耐食・
耐摩耗多層金属被膜。2. A corrosion resistant nickel plating layer (6) comprising a corrosion resistant nickel plating layer or a corrosion resistant nickel-phosphorus plating layer is formed on the surface of a metal base material (1), and an upper surface of this corrosion resistant nickel plating layer (6). A low melting point metal plating layer (2) having adhesion and corrosion resistance, and further, a wear resistant hard chromium plating layer (3) is formed on the upper surface of the low melting point metal plating layer (2). Corrosion resistance characterized by
Abrasion resistant multi-layer metal coating.
施した後、低融点金属めっき層（２）の上面に耐摩耗性
硬質クロムめっき層（３）を形成し、２００〜４００℃
での熱処理を施して、クロムめっきの硬度を低下させず
に耐食性及び密着性を向上させることを特徴とする耐食
・耐摩耗多層金属被膜の製造方法。3. A metal base material (1) is plated with a low melting point metal, and then a wear-resistant hard chrome plating layer (3) is formed on the upper surface of the low melting point metal plating layer (2) to form a 200 to 400 layer. ℃
A method for producing a corrosion-resistant and wear-resistant multi-layer metal coating, characterized in that the heat resistance is applied to improve corrosion resistance and adhesion without lowering the hardness of chromium plating.
き層又は耐食性ニッケル−リンめっき層からなる耐食性
ニッケル系めっき層（６）を施した後、この耐食性ニッ
ケル系めっき層（６）の上面に低融点金属めっき層
（２）を形成し、さらに、この低融点金属めっき層
（２）の上面に耐摩耗性硬質クロムめっき層（３）を形
成した後、２００〜４００℃での熱処理を施して、クロ
ムめっきの硬度を低下させずに耐食性及び密着性を向上
させることを特徴とする耐食・耐摩耗多層金属被膜の製
造方法。4. A corrosion-resistant nickel-based plating layer (6) comprising a corrosion-resistant nickel-plated layer or a corrosion-resistant nickel-phosphorus plated layer is formed on a metal base material (1), and then the upper surface of this corrosion-resistant nickel-based plated layer (6). After forming the low melting point metal plating layer (2) on the upper surface and further forming the wear resistant hard chromium plating layer (3) on the upper surface of the low melting point metal plating layer (2), heat treatment at 200 to 400 ° C. A method for producing a corrosion-resistant and wear-resistant multi-layer metal coating, which is characterized by improving the corrosion resistance and the adhesion without reducing the hardness of the chromium plating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5056495A JP2739409B2 (en) | 1993-02-22 | 1993-02-22 | Manufacturing method of corrosion and wear resistant multilayer metal coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5056495A JP2739409B2 (en) | 1993-02-22 | 1993-02-22 | Manufacturing method of corrosion and wear resistant multilayer metal coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06248472A true JPH06248472A (en) | 1994-09-06 |
| JP2739409B2 JP2739409B2 (en) | 1998-04-15 |
Family
ID=13028685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5056495A Expired - Lifetime JP2739409B2 (en) | 1993-02-22 | 1993-02-22 | Manufacturing method of corrosion and wear resistant multilayer metal coating |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2739409B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016509128A (en) * | 2013-01-15 | 2016-03-24 | サヴロック リミテッド | Method for producing a chromium coating on a metal substrate |
| US10443142B2 (en) | 2014-01-15 | 2019-10-15 | Savroc Ltd | Method for producing chromium-containing multilayer coating and a coated object |
| US10443143B2 (en) | 2014-01-15 | 2019-10-15 | Savroc Ltd | Method for producing a chromium coating and a coated object |
| US10487412B2 (en) | 2014-07-11 | 2019-11-26 | Savroc Ltd | Chromium-containing coating, a method for its production and a coated object |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5723091A (en) * | 1980-07-17 | 1982-02-06 | Nippon Steel Corp | Steel plate for welded can and container and preparation thereof |
| JPS5767196A (en) * | 1980-10-09 | 1982-04-23 | Nippon Steel Corp | Surface treated steel plate with high corrosion resistance |
| JPH01230794A (en) * | 1988-03-10 | 1989-09-14 | Toyo Kohan Co Ltd | Tinned steel sheet having high corrosion resistance, superior coatability and drawability |
| JPH04325690A (en) * | 1991-04-26 | 1992-11-16 | Honda Motor Co Ltd | Structural member with modified surface layer and production thereof |
| JPH05263208A (en) * | 1991-11-20 | 1993-10-12 | Kowa Kogyosho:Kk | Zinc-plated material and its production |
-
1993
- 1993-02-22 JP JP5056495A patent/JP2739409B2/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5723091A (en) * | 1980-07-17 | 1982-02-06 | Nippon Steel Corp | Steel plate for welded can and container and preparation thereof |
| JPS5767196A (en) * | 1980-10-09 | 1982-04-23 | Nippon Steel Corp | Surface treated steel plate with high corrosion resistance |
| JPH01230794A (en) * | 1988-03-10 | 1989-09-14 | Toyo Kohan Co Ltd | Tinned steel sheet having high corrosion resistance, superior coatability and drawability |
| JPH04325690A (en) * | 1991-04-26 | 1992-11-16 | Honda Motor Co Ltd | Structural member with modified surface layer and production thereof |
| JPH05263208A (en) * | 1991-11-20 | 1993-10-12 | Kowa Kogyosho:Kk | Zinc-plated material and its production |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016509128A (en) * | 2013-01-15 | 2016-03-24 | サヴロック リミテッド | Method for producing a chromium coating on a metal substrate |
| US10443142B2 (en) | 2014-01-15 | 2019-10-15 | Savroc Ltd | Method for producing chromium-containing multilayer coating and a coated object |
| US10443143B2 (en) | 2014-01-15 | 2019-10-15 | Savroc Ltd | Method for producing a chromium coating and a coated object |
| US10487412B2 (en) | 2014-07-11 | 2019-11-26 | Savroc Ltd | Chromium-containing coating, a method for its production and a coated object |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2739409B2 (en) | 1998-04-15 |
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