JP2742919B2 - Method for producing stainless steel material having passivation film layer formed - Google Patents

Method for producing stainless steel material having passivation film layer formed

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Publication number
JP2742919B2
JP2742919B2 JP4257505A JP25750592A JP2742919B2 JP 2742919 B2 JP2742919 B2 JP 2742919B2 JP 4257505 A JP4257505 A JP 4257505A JP 25750592 A JP25750592 A JP 25750592A JP 2742919 B2 JP2742919 B2 JP 2742919B2
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Japan
Prior art keywords
stainless steel
gold
passivation film
steel material
plating
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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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JP4257505A
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Japanese (ja)
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JPH0693470A (en
Inventor
一夫 吉原
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株式会社関西プラント工業
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Priority claimed from JP62026948A external-priority patent/JPH0631469B2/en
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Description

【発明の詳細な説明】 【0001】 【産業上の利用分野】本発明は、不活性化皮膜層を形成
したステンレススチール材の製造方法に関する。本発明
で得られる不活性化皮膜層の形成されたステンレススチ
ール材は、これにめっきを施すことにより、耐蝕性、耐
摩耗性、密着性に優れ、且つ経済的にも有利に金めっき
製品を提供することができる。 【0002】 【従来の技術】古来、金はその華麗な黄金色と光沢か
ら、富の象徴として珍重され、貨幣、美術品、細工物、
装身具等において広く愛用されてきた。従来、スプー
ン、フォーク、皿等の食器類を初めとする生活必需品に
も金製又は金めっきを施したものが実用化されている
が、昨今の生活水準の向上から、益々この傾向が強く、
例えば浴槽や鍋、釜といった大容量のものや玄関の扉、
エレベーターの扉、建物や構築物の内装材や外装材等の
建築材に至るまで大きな期待が寄せられている。しかし
乍ら、これら浴槽や鍋等にあっては、毎日使用後にタワ
シやスポンジ等により擦られたり、洗剤やバス用添加剤
等の化学薬品に曝される等、また建築材等にあっては、
他の物と接触したり、風雨、塩分、酸性雨等に曝される
等の極めて過酷な条件に耐える必要があり、かかる条件
に耐える金めっき製品の製造は極めて困難である。 【0003】第1に、従来錆びないステンレスの上に、
錆びない金めっきを施せば永久に錆びないと一般に考え
られるが、実際には全く逆であって、錆び難いステンレ
ス上に金めっきを施せば、非常に錆び易い金属に変わる
のである。その理由は、ステンレスが錆び難いのはその
表面に形成されている不動態化皮膜(酸化膜)があるた
めであるが、ステンレス上の金めっきを施すにはこの不
動態化皮膜を除去する活性化処理が不可欠である。そし
て、この不動態化皮膜が除去されているため、特にめっ
き厚さが薄い場合等においてピンホールが発生し易く、
めっき皮膜とステンレス素地との間に局部電池が形成さ
れ、錆びにくいステンレス材でもイオン化傾向の差によ
って腐食が起こるのである。 【0004】第2は、浴槽や建築材等の大型サイズのも
のに均一な厚さで金めっきを施すことが非常に難しく、
また設備費も重むという問題がある。これら大型サイズ
のステンレスに金めっきを施することは上記の如き厄介
な問題が存在するため、潜在的に大きな需要があり乍
ら、今日迄かかる要請に応えられないでいるのが実情で
ある。 【0005】 【発明が解決しようとする課題】本発明は上記問題点を
解消するためのステンレススチール材の製造方法を提供
するものである。 【0006】 【課題を解決するための手段】本発明者はかかる実情に
鑑み、上記問題点を解決すべく鋭意研究の結果、特定の
不活性化処理により不活性化皮膜層を形成させたステン
レススチール材により、上記問題点が一挙に解消される
ことを見出し本発明を完成するに至ったものである。 【0007】即ち、本発明は、酸化性化学薬品と研磨材
との混合液をフェルト等の繊維製マット状物に含浸さ
せ、該マット状物でステンレススチール材の表面をラッ
ピング研磨することにより、ステンレススチール材の表
面に不活性化皮膜層を形成させることを特徴とする、不
活性化皮膜層を形成したステンレススチール材の製造方
法を内容とするものである。 【0008】本発明者はステンレス上に金めっきを施し
たものが耐蝕性を有しないのは不動態化皮膜を取り去る
活性化処理にあり、一方、ステンレス上に金めっきを施
すには不動態化皮膜を除去しなければならないという二
律背反の困難な問題を、特定の不活性化処理により不動
態化皮膜を形成させたステンレススチール材を用い、更
に塩酸酸性金めっき液を用いれば該不動態化皮膜の上に
金めっきを施すことが可能であることを見出したもので
ある。 【0009】本発明に用いられるステンレススチール材
としてはオーステナイト鋼の如き高級ステンレススチー
ルが好適で具体的にはSUS304、316、316L
等が挙げられ、これらを用いることにより均一な不活性
化皮膜層(不動態化皮膜層)を形成させることができ
る。尚、本発明における不活性化皮膜とは所謂不動態化
皮膜と同様のもので、不活性化の高い酸化皮膜を主体と
するものである。 【0010】上記ステンレススチール材の表面を、酸化
性化学薬品と研磨材との混合液をフェルト等の繊維製マ
ット状物に含浸させ、ラッピング研磨することにより、
不活性化処理を行う。酸化性化学薬品としては、硝酸、
硝酸アルミニウム、硝酸マグネシウム等が好ましく、ま
た研磨材としてはフェライト(弁柄、Fe)、ア
ルミナ(Al)等が好ましい。また研磨材の粒径
は1μm以下が好ましい。不活性化処理は例えば硝酸の
15%液にフェライト(四三酸化鉄Fe)を約4
0g/L混合して撹拌後、得られた混合液を繊維製マッ
ト状物に含浸させ、適当な圧力を掛けてラッピングす
る。好ましい一例を示せば、上記混合液を純毛を含んだ
耐酸合成繊維製フェルトマットに含浸させ、約1kg/
cmの圧力を掛けて毎分200〜400回転させラッ
ピングする。該処理により、フェライト微粒粉末の研磨
によりステンレススチール材の表面に新な不活性化皮膜
層が生成する。この際に、摩擦熱により温度が約100
℃迄上昇して、前記不活性化皮膜層の生成を加速させる
とともに、更に酸化性化学薬品の酸化作用が相乗的に働
き、耐摩耗性に富む酸化クロム層を多く含有する不活性
化皮膜層が形成される。硝酸の濃度、フェライトの濃
度、ロールのラッピング圧力、回転数等は用いたステン
レススチールの種類、不活性化皮膜の所望の形成度等に
より適宜決定すれば良い。上記の如く、化学的作用と物
理的作用とにより形成される不活性化皮膜は、通常の不
活性化皮膜が鉄、ニッケル、クロム等の酸化物からなっ
ているのに対し、酸化クロムが主体であり、そのため極
めて耐蝕性、耐摩耗性、密着性に優れるとともに、鏡面
光沢を有し、優れた外観を有し、そのままで、又は金め
っきを施す等により使用される。 【0011】本発明のステンレススチール材に金めっき
を施すには、水洗、電解洗浄を経て、上記の如く形成さ
せた不活性化皮膜層の上に直接金めっきを施すか、又は
金ストライクめっきを施した後、金めっきを施す。めっ
き液としては、塩酸酸性の金めっき液を用いる。 【0012】金ストライクめっきを施した場合は、次い
で、水洗、中和(クエン酸10%溶液)、水洗の後、上
記ストライクめっき層の上に厚付け金めっきを施す。例
えばJISで表示される24Kめっき(金98%以上)
を厚付けする。コバルト又はニッケルを2〜3%迄含有
するコバルト−金、ニッケル−金等の合金を用いると、
金めっき層の硬度が3倍以上向上し、好適である。金め
っき層の厚さは3〜20μm程度が好ましい。 【0013】本発明において、ステンレススチール材の
表面にエッチング施し、金めっきすることにより、耐蝕
性に優れたエッチングを有する金めっき製品を得ること
ができる。 【0014】 【実施例】以下、本発明を実施例及び参考例を挙げて説
明するが、本発明はこれらに限定されるものではない。 実施例1 硝酸(67%純度、市販品)の15%水溶液に四三酸化
鉄(Fe)を40g/L混合して十分に撹拌後、
混合液を純毛を含んだ耐酸合成繊維製フェルトからなる
ロール状物に含浸させ、該ロール状物でステンレススチ
ールSUS304製の板(120cm×300cm)の
表面を約1kg/cmの圧力下で毎分300回転させ
不活性化処理を行い、ステンレススチール板の表面に不
活性化皮膜層を形成させた。 【0015】参考例1 上記不活性化処理し不活性化皮膜層を形成したステンレ
ススチール板を水洗し、市販のアルカリ電解洗浄剤を用
い、陽極電解により温度40℃、約1〜2分電解洗浄し
た後、水洗して、金ストライクめっきを施した。めっき
液としては塩酸浴と塩化第2金カリ溶液を用い、具体的
には日本エレクトロプレイティング・エンジニアース株
式会社製「オーロボンドTCL」を用い、めっき条件は
下記の同社標準仕様条件に依った。 金属金:2.0g/L 温 度:40℃ 電流密度:2.0A/dm 時 間:60秒 【0016】次に、水洗、中和(クエン酸10%溶液に
浸漬)、水洗を経た後、厚付け金めっき(3μm)を施
した。めっき液としては、有機酸による酸性金めっき
液、具体的には日本エレクトロプレイティング・エンジ
ニアース株式会社製「オートロネクスCS」を用い、め
っき条件は下記の同社標準仕様条件に依った。めっき条
件は下記の通りとした。 めっき条件: 電流密度:0.5A/dm 温 度:40℃ pH :3.8 時 間:70分 厚付け金めっき終了後、めっき液を回収した後、水洗、
中和(アルカリ5%溶液)、水洗を経た後、純湯洗浄を
行い、シミ等を無くした後、100℃で3分熱風乾燥し
て金めっきステンレススチール板を得た。 【0017】上記の如くして得られた金めっきステンレ
ススチール板の特性を知るために、上記と同一条件で金
めっきステンレス試験片(JIS規格寸法)を得、これ
を用いて、耐洗浄性(耐摩耗性)、耐薬品性、耐沸騰水
性、密着性をそれぞれテストした。得られた結果を表1
に示す。 【0018】 【表1】【0019】註: *:豚毛ブラシの場合は30000回で直径約0.1〜
0.5mmのピンホール様の剥れが13個、スポンジの
場合は12個認められた。 **:試験片に「カビキラー(登録商標)」(ジョンソ
ン株式会社製)を0.5mL滴下し、時計皿で液面を覆
い20℃で1時間静置した。次に、時計皿を取り除き、
試験片の表面を水で洗い流した後、室内に1時間放置
後、外観判定を行った。 【0020】参考例2 参考例1において、金めっき層の厚さを0.1μmとし
た他は参考例1と同一条件で金めっきステンレス片(J
IS規格寸法)を用いて各種のテストを行った。同時に
比較のために、ヘアーライン材(H.L.材)及びブラ
イトアニール材(B.A.材)の上に0.1μm厚さの
金めっきを施したものについても同様のテストを実施し
た。得られた結果を表2及び表3に示すが、同表から本
発明による不活性化処理品はキャス試験及び色差におい
て、顕著な効果を有していることが理解される。 【0021】 【表2】【0022】 【表3】* :()内記号は、財団法人 日本塗料検査協会 発
行「塗膜の評価基準」1970年度版による さび の
評価点数を示す。 **:測定方法 JIS Z 8722 測定条件 O−dSa5W5XYZ表色系 標準の光C 【0023】 【発明の効果】本発明の特徴は、従来ステンレスに金め
っきを施すには活性化処理を施し、不活性化皮膜(不動
態化皮膜)を除去する必要があり、一方、活性化処理を
施せばステンレスが腐蝕し、実用に耐えないという二律
背反の課題を、不活性化処理を施して不活性化皮膜層を
積極的に形成させ、これを金めっき用に供することに成
功した点にある。本発明のステンレススチール材は塩酸
酸性金めっき液を用いることにより、この不活性化皮膜
上に従前不可能視されていた金めっきを施すことができ
る。 【0024】本発明のステンレススチール材の不活性化
皮膜上に金めっきが可能な理由としては、以下の如く考
えられる。即ち、本発明のステンレススチール材をめっ
き液に浸漬すると直ちに不活性化皮膜層表面の溶解が始
まるが、この溶解と同時に電着が開始される。不活性化
皮膜層は金めっきが施される程度には溶解するが瞬時に
金めっきされるため、不活性化皮膜層は殆ど溶解されず
に残存しており、その不活性化皮膜層上に金めっきが施
されるのである。かくして、得られた金めっき層は優れ
た耐蝕性、耐摩耗性を有するのである。 【0025】本発明によれば、浴槽や鍋、釜等の大容量
の容器の他、ドアー、内装材、外装材等の金めっき製品
を提供でき、しかも従来の如く不活性化皮膜を除去した
面に金めっきを施すのではなく、成長させた不活性化皮
膜層上に金めっきが施されているため、耐蝕性、耐摩耗
性、耐薬品性、耐沸騰水性等のこれらの機能上要求され
る過酷な条件に十分に耐える金めっき製品を提供するこ
とができる。もっとも、本発明のステンレススチール材
は、そのまま用いても不活性化皮膜層が成長形成されて
いるので、従来のものに比べ耐蝕性、耐摩耗性に優れて
いることは云うまでもない。以上の如く、本発明によれ
ば安価且つ高性能の金めっき品を提供でき、その有用性
は頗る大である。
DETAILED DESCRIPTION OF THE INVENTION [0001] BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention forms a passivation film layer.
And a method for producing a stainless steel material. The present invention
Stainless steel with a passivation film layer obtained by
The steel material is plated to provide corrosion resistance,
Gold plating with excellent wear and adhesion, and economical advantage
Products can be provided. [0002] 2. Description of the Related Art Since ancient times, gold has its splendid golden color and luster
Prized as a symbol of wealth, money, art, crafts,
It has been widely used in accessories. Conventionally, spoo
For daily necessities such as tableware, forks, plates, etc.
Also made of gold or plated with gold
However, with the recent improvement in living standards, this tendency is increasingly strong.
For example, large-capacity things such as bathtubs, pots, pots, and entrance doors,
Elevator doors, interior and exterior materials for buildings and structures, etc.
There is great expectation for building materials. However
However, in these bathtubs and pots, etc.
Rubbed by cloth or sponge, detergent or bath additive
Exposure to chemicals such as
Contact with other objects or exposure to wind, salt, acid rain, etc.
Must withstand extremely severe conditions such as
It is extremely difficult to produce a gold-plated product that can withstand the heat. [0003] First, on a conventional stainless steel that does not rust,
It is generally assumed that rust-free gold plating will not rust permanently
But it is actually the opposite, and it is hard to rust
If you apply gold plating on the metal, it will turn into a very rusty metal
It is. The reason is that stainless steel is hard to rust
There is a passivation film (oxide film) formed on the surface
However, it is not possible to apply gold plating on stainless steel.
Activation treatment to remove the passivation film is essential. Soshi
The passivation film has been removed,
Pinholes easily occur when the thickness is thin, etc.
A local battery is formed between the plating film and the stainless steel substrate.
Stainless steel, which is difficult to rust, due to the difference in ionization tendency.
Corrosion occurs. [0004] Second, large-sized products such as bathtubs and building materials are used.
It is very difficult to apply gold plating with a uniform thickness,
In addition, there is a problem that equipment costs are heavy. These large sizes
Gold plating on stainless steel is troublesome as described above.
Potential problems, the potential problems
The fact is that we have not been able to respond to such requests until today
is there. [0005] The present invention solves the above problems.
To provide a method for manufacturing stainless steel
Is what you do. [0006] SUMMARY OF THE INVENTION The present inventor has taken this situation into account.
In view of the above, as a result of intensive research to solve the above problems,
Stainless steel with passivation layer formed by passivation treatment
The above problems can be solved all at once with the less steel material
This led to the completion of the present invention. That is, the present invention relates to an oxidizing chemical and an abrasive.
Liquid mixture with a fiber mat such as felt
And matt the surface of the stainless steel material.
Ping-polished stainless steel surface
A passivation film layer formed on the surface.
Manufacturing method of stainless steel material with activated film layer
The content of the law. The present inventor applied gold plating on stainless steel.
Not corrosion resistant removes passivation film
Activation treatment, while gold plating on stainless steel
That the passivation film must be removed before
Difficult to solve problems immobilized by specific deactivation process
Using a stainless steel material with a
If a hydrochloric acid acidic gold plating solution is used for the passivation film
It is found that it is possible to apply gold plating
is there. The stainless steel material used in the present invention
High-grade stainless steel such as austenitic steel
SUS304, 316, 316L
And the like, and the use of these makes uniform inertness
Passivation layer (passivation layer)
You. The passivation film in the present invention is a so-called passivation.
Similar to the film, mainly composed of a highly inert oxide film
Is what you do. The surface of the stainless steel material is oxidized.
A mixture of a chemical and an abrasive with a fibrous
By impregnating the slab and lapping it,
Perform inactivation processing. Oxidizing chemicals include nitric acid,
Aluminum nitrate, magnesium nitrate, etc. are preferred.
Ferrite (Pentral, Fe3O4), A
Lumina (Al2O3Is preferred. Also the abrasive particle size
Is preferably 1 μm or less. The deactivation process is, for example, nitric acid.
Ferrite (iron tetroxide Fe) in 15% liquid3O4) To about 4
After mixing and stirring at 0 g / L, the resulting mixture was mixed with a fiber mat.
Impregnated with a suitable pressure and wrap it
You. In a preferred example, the mixed solution contains pure wool.
Impregnated in an acid-resistant synthetic fiber felt mat, about 1 kg /
cm2At 200 to 400 revolutions per minute
Ping. Polishing of ferrite fine powder by this process
New passivation film on stainless steel surface
Layers form. At this time, a temperature of about 100
℃ to accelerate the formation of the passivation layer
In addition, the oxidizing action of oxidizing chemicals works synergistically
Inert with high chromium oxide layer with high wear resistance
An oxide film layer is formed. Nitric acid concentration, ferrite concentration
Degree, roll lapping pressure, rotation speed, etc.
Type of less steel, desired degree of passivation film formation, etc.
It may be determined more appropriately. As mentioned above, chemical actions and substances
The passivation film formed by the physical action
The activation film consists of oxides such as iron, nickel, chromium, etc.
However, chromium oxide is mainly used,
Excellent corrosion resistance, abrasion resistance and adhesion,
Glossy, excellent appearance, as is or gold
It is used by applying a plating. [0011] Gold plating on the stainless steel material of the present invention
Is applied through water washing and electrolytic washing.
Gold plating directly on the passivation layer, or
After gold strike plating, gold plating is applied. Me
A hydrochloric acid acidic gold plating solution is used as the solution. When gold strike plating is applied,
After washing with water, neutralizing (10% citric acid solution), washing with water
Thick gold plating is applied on the strike plating layer. An example
For example, 24K plating indicated by JIS (gold 98% or more)
Thicken. Contains up to 2-3% of cobalt or nickel
When using alloys such as cobalt-gold, nickel-gold,
The hardness of the gold plating layer is more than tripled, which is preferable. Gold
The thickness of the coating layer is preferably about 3 to 20 μm. In the present invention, the stainless steel material
Corrosion resistant by etching and gold plating on the surface
To obtain gold-plated products with excellent etching properties
Can be. [0014] The present invention will be described below with reference to examples and reference examples.
However, the present invention is not limited to these. Example 1 Oxidation in a 15% aqueous solution of nitric acid (67% purity, commercial product)
Iron (Fe3O4) Was mixed at 40 g / L and thoroughly stirred.
The mixture consists of acid-resistant synthetic fiber felt containing pure wool.
Impregnate the roll-shaped material and use the stainless steel
SUS304 plate (120cm x 300cm)
About 1kg / cm on the surface2300 revolutions per minute under the pressure of
Deactivate the surface of the stainless steel plate
An activated coating layer was formed. Reference Example 1 A stainless steel with the above-mentioned passivation treatment to form a passivation film layer
Wash the steel plate with water and use a commercially available alkaline electrolytic cleaner.
, Electrolytic cleaning by anodic electrolysis at a temperature of 40 ° C for about 1-2 minutes
After that, the substrate was washed with water and subjected to gold strike plating. Plating
As the liquid, use hydrochloric acid bath and potassium hydroxide solution
Japan Electroplating Engineers Inc.
Using "Aurobond TCL" manufactured by Shikisha Co., Ltd.
According to the following standard specifications of the company. Metallic gold: 2.0 g / L Temperature: 40 ° C Current density: 2.0 A / dm2 Time: 60 seconds Next, washing with water and neutralization (in a 10% citric acid solution)
Immersion), washing with water, and then applying thick gold plating (3 μm).
did. Acid plating with organic acid as the plating solution
Liquid, specifically Japan Electroplating Engine
Use "AUTERONEX CS" manufactured by Niears Corporation.
The specifications were based on the following standard specifications. Plating strip
The case was as follows. Plating conditions: Current density: 0.5 A / dm2 Temperature: 40 ° C pH: 3.8 Time: 70 minutes After the completion of thick gold plating, after collecting the plating solution, washing with water,
After neutralization (5% alkali solution), washing with water, washing with pure hot water
After removing stains, dry with hot air at 100 ° C for 3 minutes.
To obtain a gold-plated stainless steel plate. The gold-plated stainless steel obtained as described above
Under the same conditions as above,
Obtain a plated stainless steel test piece (JIS standard size)
Using, washing resistance (wear resistance), chemical resistance, boiling water
Properties and adhesion were tested. Table 1 shows the obtained results.
Shown in [0018] [Table 1]Note: *: In the case of a pig hair brush, the diameter is about 0.1 to 30000 times.
13 pinhole-like peelings of 0.5mm, sponge
In the case, 12 were found. **: The test piece was "mold killer (registered trademark)" (Johnso
0.5 mL) and cover the liquid surface with a watch glass.
At 20 ° C. for 1 hour. Next, remove the watch glass,
After washing the surface of the test piece with water, leave it in the room for 1 hour
Thereafter, the appearance was determined. Reference Example 2 In Reference Example 1, the thickness of the gold plating layer was set to 0.1 μm.
Other than the above, gold-plated stainless steel pieces (J
Various tests were performed using IS standard dimensions). at the same time
For comparison, a hairline material (HL material) and a bra
0.1 μm thick on the light-annealed material (BA material)
A similar test was performed on the gold-plated one.
Was. Tables 2 and 3 show the obtained results.
The inactivated product according to the invention has a Cass test and color difference
Therefore, it is understood that it has a remarkable effect. [0021] [Table 2][0022] [Table 3]*: The symbols in parentheses are from the Japan Paint Inspection Association.
Line "Evaluation Criteria for Coating Films" 1970
Indicates the evaluation score. **: Measurement method JIS Z 8722 Measurement conditions O-dSa5W5XYZ color system Standard light C [0023] The feature of the present invention is that the conventional stainless steel
To apply a passivation, apply an activation process and passivate the
It is necessary to remove the activated film
If applied, the stainless steel will corrode and be unusable
To overcome the conflicting problem, passivate the passivation film layer
Actively forming and providing this for gold plating
It is in the point of having succeeded. The stainless steel material of the present invention is hydrochloric acid
By using acidic gold plating solution, this passivation film
Gold plating, which was previously considered impossible, can be applied
You. Inactivation of the stainless steel material of the present invention
The reasons why gold plating is possible on the film are considered as follows.
available. That is, the stainless steel material of the present invention is
Immediately after immersion in the cleaning solution,
At the same time, electrodeposition is started simultaneously with this dissolution. Inactivation
The coating layer dissolves to the extent that gold plating is applied, but instantly
The passivation layer hardly dissolves due to the gold plating
Gold plating on the passivation layer.
It is done. The gold plating layer thus obtained is excellent
It has high corrosion resistance and wear resistance. According to the present invention, a large capacity of a bathtub, a pot, a pot, etc.
Gold plated products such as doors, interior materials, exterior materials, etc.
Can be provided, and the passivation film has been removed as before.
Passivated skin that has been grown, rather than plated with gold
Corrosion resistance and abrasion resistance due to gold plating on the film layer
Performance, chemical resistance, boiling water resistance, etc.
To provide gold-plated products that can withstand severe conditions
Can be. However, the stainless steel material of the present invention
Can be used as it is to form a passivation film layer.
With better corrosion and wear resistance than conventional ones
Needless to say, As described above, according to the present invention,
Inexpensive and high-performance gold-plated products can be provided and their usefulness
Is very large.

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 FI C25D 5/36 C25D 5/36 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code FI C25D 5/36 C25D 5/36

Claims (1)

(57)【特許請求の範囲】 1.酸化性化学薬品と研磨材との混合液をフェルト等の
繊維製マット状物に含浸させ、該マット状物でステンレ
ススチール材の表面をラッピング研磨することにより、
ステンレススチール材の表面に不活性化皮膜層を形成さ
せることを特徴とする、不活性化皮膜層を形成したステ
ンレススチール材の製造方法。 2.ステンレススチール材がオーステナイト鋼ステンレ
スである請求項1記載の製造方法。
(57) [Claims] By impregnating a fibrous mat such as felt with a mixture of an oxidizing chemical and an abrasive, and lapping and polishing the surface of the stainless steel material with the mat,
A method for producing a stainless steel material having a passivation film layer, wherein the passivation film layer is formed on a surface of the stainless steel material. 2. 2. The method according to claim 1, wherein the stainless steel material is austenitic stainless steel.
JP4257505A 1987-02-06 1992-08-31 Method for producing stainless steel material having passivation film layer formed Expired - Lifetime JP2742919B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4257505A JP2742919B2 (en) 1987-02-06 1992-08-31 Method for producing stainless steel material having passivation film layer formed

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP62026948A JPH0631469B2 (en) 1987-02-06 1987-02-06 Manufacturing method of gold plating containers
JP4257505A JP2742919B2 (en) 1987-02-06 1992-08-31 Method for producing stainless steel material having passivation film layer formed

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP62026948A Division JPH0631469B2 (en) 1987-02-06 1987-02-06 Manufacturing method of gold plating containers

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JPH0693470A JPH0693470A (en) 1994-04-05
JP2742919B2 true JP2742919B2 (en) 1998-04-22

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WO2002038828A1 (en) * 2000-11-10 2002-05-16 Honda Giken Kogyo Kabushiki Kaisha Method of surface treatment for stainless steel product for fuel cell
JP5369975B2 (en) * 2009-08-04 2013-12-18 大日本印刷株式会社 Method for forming gold plating pattern on stainless steel substrate
JP5333149B2 (en) * 2009-10-21 2013-11-06 大日本印刷株式会社 Method for forming gold plating layer on stainless steel substrate and plating apparatus used therefor
CN106659413A (en) * 2014-04-30 2017-05-10 盖凡尼克有限公司 An electrodermal activity sensor

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JPS5130018A (en) * 1974-09-04 1976-03-13 Pentel Kk ENPITSUSHINNOSEIZOHO
JPS5269828A (en) * 1975-12-10 1977-06-10 Nisshin Steel Co Ltd Stainless steel treated to form basis for subsequent coloringapplication and production process therefor
JPS5821030B2 (en) * 1975-12-29 1983-04-26 チユウガイカセイ カブシキガイシヤ scale scale
JPS54128949A (en) * 1978-03-31 1979-10-05 Mitsubishi Precision Co Ltd Surface treatment of stainless steel
JPS5565368A (en) * 1978-11-07 1980-05-16 Toshiba Corp Strengthening method for making passive state of stainless steel
JPS5669723A (en) * 1979-11-12 1981-06-11 Fujikura Ltd Method of manufacturing insulated electric wire
JPS57194263A (en) * 1981-05-25 1982-11-29 Chobe Taguchi Improvement of pickling agent
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