JP2000064024A - Molten metal-corrosion resistant film forming material and formation of film - Google Patents
Molten metal-corrosion resistant film forming material and formation of filmInfo
- Publication number
- JP2000064024A JP2000064024A JP24437198A JP24437198A JP2000064024A JP 2000064024 A JP2000064024 A JP 2000064024A JP 24437198 A JP24437198 A JP 24437198A JP 24437198 A JP24437198 A JP 24437198A JP 2000064024 A JP2000064024 A JP 2000064024A
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- JP
- Japan
- Prior art keywords
- molten metal
- plating
- alloy layer
- film
- aluminum
- 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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- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Coating By Spraying Or Casting (AREA)
- Coating With Molten Metal (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、自動車、家庭電化
製品、事務用機器、建築資材などの製造に使用される薄
鋼板の連続溶融金属、例えば溶融亜鉛、溶融亜鉛−アル
ミニウム合金などのめっきラインにおいて、溶融金属浴
中に浸漬状態で使用されるシンクロール、サポートロー
ルなどのロール類、軸受部品、スナウト等などの溶融金
属浴用浸漬部材とその製造法に関し、特に溶融金属腐食
を抑え、生産性、操業性、安全性、メンテナンス性向上
のために耐食・耐久性に優れた合金表層を基材表面に形
成した溶融金属浴用浸漬部材とその形成方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plating line for continuous molten metal of a thin steel sheet used for manufacturing automobiles, home appliances, office equipment, building materials, etc., for example, molten zinc, molten zinc-aluminum alloy and the like. In regard to the molten metal bath dipping member such as sink rolls, support rolls, bearing parts, snouts, etc., which are used in a molten metal bath in a state of being immersed, particularly, the molten metal corrosion is suppressed and the productivity is improved. The present invention relates to a molten metal bath dipping member in which an alloy surface layer having excellent corrosion resistance and durability is formed on the surface of a base material in order to improve operability, safety, and maintainability, and a method for forming the same.
【０００２】[0002]
【従来の技術】溶融亜鉛めっき、溶融亜鉛・アルミニウ
ム合金めっき、溶融鉛めっきなどの設備に使用される浴
中機器の長寿命化には、従来、鋼中にＣｒ、Ｎｉ、Ｍｏ
あるいはＮ2を含有させるなどにより改善を図ったり、
これら耐食性材料の表層に、さらに高耐食性材料を肉盛
りしたり、サーメット材料やセラミックス材料の溶射、
あるいはセラミックス系塗料などを塗装することなどが
行なわれてきた。2. Description of the Related Art Conventionally, Cr, Ni, and Mo in steel have been used to prolong the life of equipment in baths used for equipment such as hot dip galvanizing, hot dip zinc / aluminum alloy plating, and hot lead plating.
Or improve by adding N 2 , etc.,
On the surface layer of these corrosion-resistant materials, a high-corrosion-resistant material is further deposited, or cermet material or ceramic material is sprayed,
Alternatively, it has been practiced to apply a ceramic paint or the like.
【０００３】[0003]
【発明が解決しようとする課題】しかし、耐久性はなお
十分とはいえず、スナウトポンプ部品の場合、耐食性素
材のままで使用すると１〜３ヵ月が使用限界であった。
また、耐食性の自溶合金等を被覆した場合、３〜６ヵ月
が限度であった。However, the durability is still not sufficient, and in the case of a snout pump part, the usage limit is 1 to 3 months if the corrosion resistant material is used as it is.
When coated with a corrosion-resistant self-fluxing alloy, the limit was 3 to 6 months.
【０００４】前記被覆部材の寿命はめっき操業条件によ
り影響を受けるので、苛酷な操業条件下で使用に耐え得
る皮膜形成方法が求められている。本発明は、前記した
従来の問題を克服し、溶融金属めっき浴中機器の寿命を
向上し、通常、年間１回程度の長期設備休止まで十分使
用に耐える皮膜を部材に形成し、生産上の障害を回避し
ようとするもので、特に供用中の皮膜が剥離せず、皮膜
の溶融金属による浸食を最低限に抑え、耐食・耐摩耗性
に優れた溶融金属浴用浸漬部材を提供することを目的と
している。Since the life of the coating member is affected by the plating operating conditions, there is a demand for a film forming method which can withstand use under severe operating conditions. INDUSTRIAL APPLICABILITY The present invention overcomes the above-mentioned conventional problems, improves the life of equipment in a molten metal plating bath, and usually forms a film that can withstand use for a long period of equipment down to about once a year on members, An object of the present invention is to provide a dipping member for a molten metal bath, which is intended to avoid obstacles, in particular, does not peel off the film in use, suppresses erosion of the film by molten metal to a minimum, and is excellent in corrosion resistance and wear resistance. I am trying.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するた
め、本発明者等は鋭意研究を重ねた結果、拡散浸透性雰
囲気中において、基材表面に溶射又はメッキした皮膜層
を加熱拡散して合金層を形成させ、更に窒化処理を施し
て複合合金層を形成させることにより、溶融金属浴用浸
漬部材が溶融金属に対する耐食性に特に優れた特性を示
すことを知見し、本発明を完成するに至った。[Means for Solving the Problems] In order to achieve the above object, the inventors of the present invention have conducted extensive studies, and as a result, heat-diffused a sprayed or plated coating layer on the surface of a base material in a diffusion permeable atmosphere. By forming an alloy layer and further subjecting it to a nitriding treatment to form a composite alloy layer, it was found that the immersion member for molten metal bath exhibits particularly excellent corrosion resistance to molten metal, and the present invention was completed. It was
【０００６】前記の知見に基づいてなされた本発明は、
アルミニウム、鉄、ニッケル、コバルト、クロム、モリ
ブデン、タングステン、チタンの１種以上を含む３０μ
ｍ厚さ以上の表面溶射又はメッキで形成された皮膜成分
を拡散浸透性雰囲気下で加熱拡散し、母材に拡散結合さ
せて形成された合金層を、更に窒化処理して形成した複
合合金層を有する溶融金属耐食性皮膜形成鋼材を要旨と
している。The present invention made based on the above findings is
30μ containing at least one of aluminum, iron, nickel, cobalt, chromium, molybdenum, tungsten, titanium
A composite alloy layer formed by further nitriding an alloy layer formed by heating and diffusing a coating component formed by surface thermal spraying or plating with a thickness of m or more in a diffusion permeable atmosphere, and diffusingly bonded to the base material. The gist is a molten metal corrosion resistant film forming steel material having.
【０００７】また本発明は、鋼表面に、アルミニウム、
鉄、ニッケル、コバルト、クロム、モリブデン、タング
ステン、チタンの１種以上を含む金属を３０μｍ厚さ以
上に大気溶射、減圧溶射又はメッキ後、塩化アンモニウ
ム、アンモニア、窒素、アルゴン、水素の１種以上を含
むガス組成制御雰囲気中で、３５０〜１１００℃の温度
に３〜２４時間加熱処理することにより、溶射又はメッ
キ皮膜成分を母材に拡散結合させ、母材表層にアルミニ
ウム、鉄、ニッケル、コバルト、クロム、モリブデン、
タングステン、チタンの１種以上を含有する合金層を形
成させ、更に、アンモニア、窒素の１種以上を含むガス
組成雰囲気中、４００〜８００℃の温度で３〜１５時間
加熱して、複合合金層を形成することによる溶融金属耐
食性、耐熱性、耐酸化性等の特性を付与した溶融金属耐
食性皮膜形成部材の形成方法を要旨とするものである。The present invention also relates to a steel surface containing aluminum,
After air spraying, vacuum spraying or plating a metal containing one or more of iron, nickel, cobalt, chromium, molybdenum, tungsten and titanium to a thickness of 30 μm or more, at least one of ammonium chloride, ammonia, nitrogen, argon and hydrogen is applied. In a gas composition control atmosphere containing, by heat treatment at a temperature of 350 to 1100 ° C. for 3 to 24 hours, the thermal spraying or plating film components are diffusion-bonded to the base material, and aluminum, iron, nickel, cobalt, and Chrome, molybdenum,
An alloy layer containing at least one of tungsten and titanium is formed and further heated at a temperature of 400 to 800 ° C. for 3 to 15 hours in a gas composition atmosphere containing at least one of ammonia and nitrogen to form a composite alloy layer. The gist is a method for forming a molten metal corrosion resistant film forming member which is provided with properties such as molten metal corrosion resistance, heat resistance and oxidation resistance.
【０００９】[0009]
【発明の実施の形態】本発明の構成と作用を説明する。
本発明における素材には、Ｃｒ含有量が１０重量％以上
のステンレス鋼、好ましくはオーステナイト系ステンレ
ス鋼、例えばＳＵＳ３０４が使用される。BEST MODE FOR CARRYING OUT THE INVENTION The structure and operation of the present invention will be described.
As the material in the present invention, stainless steel having a Cr content of 10% by weight or more, preferably austenitic stainless steel, for example, SUS304 is used.
【００１０】前記素材表面にサンドブラスト等の前処理
を施し、ガス溶射、プラズマ溶射あるいはこれらの減圧
溶射法又はメッキ法により３０μｍ厚さ以上の金属層を
形成する。金属成分としては、アルミニウム（Ａｌ）、
鉄（Ｆｅ）、ニッケル（Ｎｉ）、コバルト（Ｃｏ）、ク
ロム（Ｃｒ）、モリブデン（Ｍｏ）、タングステン
（Ｗ）、チタン（Ｔｉ）の１種以上の単味金属粉、混合
粉あるいは合金粉を溶射又はメッキ材料として用いる。
粉末の粒度は溶射手段によって変化するが、高速ガス溶
射法の場合には１０〜４０μｍ、プラズマ溶射法では４
０〜１００μｍ程度のものが使用される。溶射による表
層皮膜形成は、特に高速ガス溶射法例えばスルーザメテ
コ社製ダイヤモンドジェット溶射機または日本ユテック
社製ＪＰ−５０００溶射機等を使用して溶射を実施する
のが適している。メッキ法による皮膜形成としては、溶
融金属浴浸漬メッキ、化学メッキ、置換メッキ、真空メ
ッキ、気相メッキなど各種のメッキ法により実施するこ
とができる。A pretreatment such as sandblasting is applied to the surface of the material, and a metal layer having a thickness of 30 μm or more is formed by gas spraying, plasma spraying or reduced pressure spraying method or plating method. As the metal component, aluminum (Al),
Iron (Fe), nickel (Ni), cobalt (Co), chromium (Cr), molybdenum (Mo), tungsten (W), titanium (Ti) one or more kinds of plain metal powder, mixed powder or alloy powder. Used as a thermal spray or plating material.
The particle size of the powder varies depending on the thermal spraying means, but is 10 to 40 μm in the case of the high speed gas thermal spraying method and 4 in the case of the plasma thermal spraying method.
Those having a size of 0 to 100 μm are used. For forming the surface layer film by thermal spraying, it is particularly suitable to perform thermal spraying using a high-speed gas thermal spraying method, for example, a diamond jet thermal sprayer manufactured by Suruza Meteco Co., Ltd. or a JP-5000 thermal sprayer manufactured by Nippon Yutec Co., Ltd. The film formation by the plating method can be carried out by various plating methods such as molten metal bath immersion plating, chemical plating, displacement plating, vacuum plating and vapor phase plating.
【００１１】形成される金属皮膜の成分は、その後の拡
散処理、窒化処理の程度、さらには形成される合金層の
特性に大きく影響するので、適切な成分系を選定する。
例えば、Ａｌ、Ｃｒ、Ｔｉ等が多い場合には、若干の酸
化物の形成を防ぐことがむつかしい。したがって、皮膜
の密着力や形成させる金属皮膜により成分系を決定する
のである。Since the components of the metal film to be formed have a great influence on the degree of the subsequent diffusion treatment and nitriding treatment and the characteristics of the alloy layer to be formed, an appropriate component system is selected.
For example, when a large amount of Al, Cr, Ti, etc., it is difficult to prevent the formation of some oxides. Therefore, the component system is determined by the adhesion of the film and the metal film to be formed.
【００１２】好結果が得られる材料としては、Ａｌ、Ｆ
ｅ、Ｆｅ−Ａｌ系、Ｆｅ−Ｎｉ−Ｃｒ−Ａｌ系、Ｃｏ−
Ｃｒ−Ａｌ−Ｔｉ系およびこれらにＭｏやＷを添加した
成分系などがある。As the material which can obtain good results, Al and F
e, Fe-Al system, Fe-Ni-Cr-Al system, Co-
There are a Cr-Al-Ti system and a component system in which Mo and W are added to these.
【００１３】溶射又はメッキ皮膜形成後、拡散浸透処理
や窒化処理を行なうのであるが、最初に皮膜を素材との
拡散置換により、密着力の向上を図るための熱処理を行
なう。熱処理温度は、溶射又はメッキ皮膜成分系によっ
て適温範囲が決められるが、３５０〜１１００℃で、皮
膜特性を低下させない高温側の温度において行なうのが
効果的である。After the thermal spraying or plating coating is formed, diffusion permeation treatment or nitriding treatment is performed. First, the coating is subjected to diffusion substitution with the raw material to perform heat treatment for improving the adhesion. The heat treatment temperature is determined in an appropriate temperature range depending on the thermal spraying or plating film component system, but it is effective to carry out the heat treatment at a temperature of 350 to 1100 ° C. on the high temperature side that does not deteriorate the film characteristics.
【００１４】大気中では皮膜の酸化が起こるので、熱処
理雰囲気ガスの制御をし、拡散工程では主にＮ2ガス雰
囲気等の中性ガス雰囲気を採用する。加熱時間としては
最低１時間程度行なう。これにより皮膜の密着力は向上
し、拡散層が形成される。Since the film is oxidized in the atmosphere, the heat treatment atmosphere gas is controlled, and a neutral gas atmosphere such as N 2 gas atmosphere is mainly used in the diffusion process. The heating time is at least 1 hour. This improves the adhesion of the coating and forms a diffusion layer.
【００１５】次に皮膜の表面処理のための熱処理を行な
う。加熱温度は拡散処理温度から若干変化させることも
あるが、窒化層の形成反応が速やかに進行する温度、ガ
ス雰囲気を選定する。雰囲気組成はＮＨ4Ｃｌ、ＮＨ3、
Ｎ2、Ｈ2、Ａｒを採用し、拡散とともに窒化反応が行な
われるようにする。処理温度・時間は皮膜成分やガス雰
囲気にもよるが、４００〜８００℃で３〜１５時間加熱
処理するのがよい。Next, heat treatment for surface treatment of the film is performed. The heating temperature may be slightly changed from the diffusion treatment temperature, but the temperature and the gas atmosphere at which the reaction for forming the nitride layer rapidly proceeds are selected. The atmosphere composition is NH 4 Cl, NH 3 ,
N 2 , H 2 , and Ar are adopted so that the nitriding reaction is performed together with the diffusion. Although the treatment temperature and time depend on the film components and the gas atmosphere, it is preferable to perform heat treatment at 400 to 800 ° C. for 3 to 15 hours.
【００１６】形成される窒化物は皮膜成分にもよるが、
Ｆｅ4Ｎ、ＦｅＮ、ＡｌＮ、ＣｒＮ、ＴｉＮ、ＮｉＮ、
ＣｏＮなどである。したがって、形成される窒化物が複
合窒化物あるいは合金層中に分散する場合もあり、これ
ら複合窒化物あるいは合金層の構成を考慮して溶射又は
メッキ皮膜の成分系を決定することも必要である。ま
た、溶射又はメッキ時やその後の熱処理工程で生成する
少量の酸化物との結合性を考慮することも必要である。
窒化物、窒化物分散層中に若干量の酸化物が含まれる場
合も本発明の技術的範囲に入る。耐食性の点から酸化物
量は３０％以下に抑えるのが好ましいようである。形成
皮膜は、実用上の観点から３０μｍ以上とする必要があ
る。The nitride formed depends on the composition of the film,
Fe 4 N, FeN, AlN, CrN, TiN, NiN,
For example, CoN. Therefore, the formed nitride may be dispersed in the composite nitride or the alloy layer, and it is also necessary to determine the component system of the thermal spraying or plating film in consideration of the configuration of the composite nitride or the alloy layer. . It is also necessary to consider the bondability with a small amount of oxides generated during thermal spraying or plating or in the subsequent heat treatment step.
The technical scope of the present invention is also applicable to the case where the nitride or the nitride dispersion layer contains a small amount of oxide. From the viewpoint of corrosion resistance, it seems preferable to control the amount of oxides to 30% or less. From the practical viewpoint, the formed film needs to have a thickness of 30 μm or more.
【００１７】熱処理条件は、温度については熱処理炉の
構造、皮膜成分との関係でその上限として１１００℃、
拡散工程、反応速度の関係から下限として３５０℃が必
要である。加熱時間は３時間未満では反応が不十分であ
り、２４時間を超えると生産性が悪く、不経済となる。Regarding the temperature of the heat treatment, the upper limit of the temperature is 1100 ° C. in relation to the structure of the heat treatment furnace and the film components.
A lower limit of 350 ° C. is required due to the diffusion process and reaction rate. If the heating time is less than 3 hours, the reaction will be insufficient, and if it exceeds 24 hours, the productivity will be poor and uneconomical.
【００１８】熱処理組成雰囲気として、ＮＨ4Ｃｌ、Ｎ
Ｈ3、Ｎ2、Ｈ2、Ａｒの割合は、熱処理工程の相違、皮
膜成分との関係、形成する窒化物の種類によって決めら
れる。ＮＨ4Ｃｌ、ＮＨ3は主に窒化反応用に、Ｈ2は主
に拡散処理反応用に、Ｎ2、Ａｒ等は中性雰囲気を強化
するために使用する。As a heat treatment composition atmosphere, NH 4 Cl, N
The proportions of H 3 , N 2 , H 2 , and Ar are determined by the difference in the heat treatment process, the relationship with the film components, and the type of nitride formed. NH 4 Cl and NH 3 are mainly used for the nitriding reaction, H 2 is mainly used for the diffusion treatment reaction, and N 2 and Ar are used for strengthening the neutral atmosphere.
【００１９】窒化反応としては ＮＨ4Ｃｌ → ＮＨ3＋ＨＣｌ ２ＮＨ3 → ２Ｎ ＋３Ｈ2 Ｍ＋Ｎ → ＭＮ が起こると考えられ、窒化が行なわれる。As a nitriding reaction, NH 4 Cl → NH 3 + HCl 2NH 3 → 2N + 3H 2 M + N → MN is considered to occur, and nitriding is performed.
【００２０】前記の拡散工程、窒化処理工程は別々の炉
で行なっても、連続的にガス雰囲気を変えることによ
り、連続して行なってもよい。加熱温度は、それぞれの
工程に適した温度条件を設定する。The diffusion step and the nitriding step may be performed in separate furnaces or continuously by changing the gas atmosphere continuously. As the heating temperature, temperature conditions suitable for each process are set.
【００２１】窒化工程を終了した部材について、その表
面に、加熱することによって金属酸化物が生成される無
機系封孔液を塗布し焼成することにより、表層の封孔処
理を行なうこともできる。The surface of the member that has been subjected to the nitriding step may be subjected to a surface-sealing treatment by applying an inorganic sealing liquid which produces a metal oxide by heating and baking the surface.
【００２２】[0022]
【発明の効果】本発明は以上説明したように、窒（酸）
化層、溶射又はメッキ合金層、部材の素材層より成る多
層構造となっており、窒化層の金属窒化物あるいは酸化
物が、溶融金属に溶けないため耐食性に優れたものとな
る。これら各層の界面はいずれも化学反応によって形成
された化学結合となっているため密着力に優れ、単なる
溶射又はメッキ皮膜の機械的結合強度よりはるかに強力
なものとなる。したがって、表層が溶融金属耐食性に優
れ、かつ硬さも高いから耐摩耗性にも優れ、シンクロー
ル、サポートロール、軸受部品、スナウト等の溶融金属
浴用浸漬部材として、耐食・耐摩耗性に優れた効果が奏
され、産業上極めて有用である。INDUSTRIAL APPLICABILITY The present invention, as explained above, uses nitrogen (acid).
It has a multi-layered structure including a chemical conversion layer, a sprayed or plated alloy layer, and a material layer of a member. The metal nitride or oxide of the nitride layer does not dissolve in the molten metal, and thus has excellent corrosion resistance. Since the interfaces of these layers are chemical bonds formed by a chemical reaction, they have excellent adhesion and are much stronger than the mechanical bond strength of mere thermal spraying or plating coating. Therefore, the surface layer is excellent in corrosion resistance against molten metal, and also has high hardness, so it is also excellent in wear resistance. As an immersion member for a molten metal bath such as sink rolls, support rolls, bearing parts, and snouts, it has excellent corrosion resistance and wear resistance. It is very useful in industry.
【００２３】[0023]
【実施例】本発明を実施例により具体的に説明するが、
これによって本発明が限定されることはない。表１は、
本発明による（１）Ａｌを溶射して拡散・窒化処理した
部材、（２）Ａｌ−Ｆｅ−Ｎｉ−Ｃｒ合金を溶射して拡
散・窒化処理した部材、（３）Ａｌ−Ｔｉ−Ｃｏ−Ｃｒ
−Ｍｏ−Ｗ系合金を溶射して拡散・窒化処理した部材、
（４）Ａｌ溶融メッキをして拡散・窒化処理した部材
と、従来の（５）Ａｌ溶射部材および（６）Ｃｒ溶射部
材とについて、実用溶融金属めっき浴での耐食性、耐摩
耗性、耐衝撃性、溶融金属・ドロスのピックアップ性
（付着性）等の特性を比較したものである。EXAMPLES The present invention will be specifically described with reference to Examples.
This does not limit the invention. Table 1 shows
According to the present invention, (1) a member sprayed with Al for diffusion / nitriding treatment, (2) a member sprayed with Al-Fe-Ni-Cr alloy for diffusion / nitriding treatment, and (3) Al-Ti-Co-Cr.
A member obtained by spraying and diffusing and nitriding a Mo-W alloy,
(4) Corrosion resistance, wear resistance, and impact resistance in a practical molten metal plating bath for a member that has been subjected to Al hot dip plating and subjected to diffusion / nitriding treatment, and a conventional (5) Al sprayed member and (6) Cr sprayed member It is a comparison of properties such as the heat resistance and the picking up property (adhesiveness) of molten metal and dross.
【００２４】[0024]
【表１】 [Table 1]
【００２５】耐摩耗性は、１ｍｍφのスチールグリッド
を試験材表面にブラストし、摩耗による凹み深さで比較
した。耐食性は、同一部材に適用した供用限度で比較し
た。耐衝撃性は試験片（５ｍｍ×１００ｍｍ×１００ｍ
ｍ：ＳＵＳ ３０４材表面に溶射、拡散、窒化処理を行
なったもの）に、５０ｍｍφの鋼球を１ｍの高さより落
下し、剥離するまでの落下回数により優劣を判定した。
溶融金属・ドロスのピックアップ性は、溶融亜鉛・アル
ミニウム合金の酸化物であるドロス粉末を試験片上に置
き、ロールの前後運動で押しつけたとき付着したドロス
粉末の程度で比較しており、温度を変えて試験をした結
果を示した。The wear resistance was evaluated by blasting a 1 mmφ steel grid on the surface of the test material and comparing the depth of the recess due to wear. The corrosion resistance was compared at the service limit applied to the same member. Impact resistance is test piece (5 mm x 100 mm x 100 m
m: SUS 304 material surface was sprayed, diffused, and nitrided), a steel ball of 50 mmφ was dropped from a height of 1 m, and superiority or inferiority was determined by the number of drops until peeling.
The pick-up property of molten metal / dross is compared by changing the temperature by placing the dross powder, which is an oxide of molten zinc / aluminum alloy, on the test piece and pressing it by the forward and backward movement of the roll. The results are shown below.
【００２６】試験結果から、本発明による溶融金属耐食
性皮膜形成部材およびその皮膜形成方法は、溶融金属浴
中機器として、きわめて有効であることがわかり、その
工業的価値は大きいものである。From the test results, it is found that the molten metal corrosion resistant film forming member and the film forming method thereof according to the present invention are extremely effective as an apparatus in a molten metal bath, and their industrial value is great.
フロントページの続き Ｆターム(参考） 4K027 AA15 AA22 AB05 AB28 AB48 AC73 4K028 AA02 AB01 AC08 4K031 AA02 AB02 AB08 AB09 CB21 CB22 CB23 CB24 CB31 CB37 CB39 DA01 DA04 FA10 Continued front page F-term (reference) 4K027 AA15 AA22 AB05 AB28 AB48 AC73 4K028 AA02 AB01 AC08 4K031 AA02 AB02 AB08 AB09 CB21 CB22 CB23 CB24 CB31 CB37 CB39 DA01 DA04 FA10
Claims (2)
ト、クロム、モリブデン、タングステン、チタンの１種
以上を含む３０μｍ厚さ以上の表面溶射又はメッキで形
成された皮膜成分を拡散浸透性雰囲気下で加熱拡散し、
母材に拡散結合させて形成された合金層を、更に窒化処
理して形成した複合合金層を有する溶融金属耐食性皮膜
形成鋼材。1. A film component containing at least one of aluminum, iron, nickel, cobalt, chromium, molybdenum, tungsten, and titanium, which is formed by surface spraying or plating and has a thickness of 30 μm or more, and is heat-diffused in a diffusion penetrating atmosphere. Then
A molten metal corrosion resistant film forming steel material having a composite alloy layer formed by further nitriding an alloy layer formed by diffusion bonding to a base material.
ケル、コバルト、クロム、モリブデン、タングステン、
チタンの１種以上を含む金属を３０μｍ厚さ以上に大気
溶射、減圧溶射又はメッキ後、塩化アンモニウム、アン
モニア、窒素、アルゴン、水素の１種以上を含むガス制
御雰囲気中で、３５０〜１１００℃の温度に３〜２４時
間加熱処理することにより、溶射皮膜成分を母材に拡散
結合させ、母材表層にアルミニウム、鉄、ニッケル、コ
バルト、クロム、モリブデン、タングステン、チタンの
１種以上を含有する合金層を形成し、更に窒化処理する
ことにより複合合金層を形成することによる、溶融金属
耐食性、耐熱性、耐酸化性等の特性を付与した溶融金属
耐食性皮膜形成部材の形成方法。2. Aluminum, iron, nickel, cobalt, chromium, molybdenum, tungsten,
After air spraying, vacuum spraying or plating a metal containing at least one of titanium to a thickness of 30 μm or more, at 350 to 1100 ° C. in a gas controlled atmosphere containing at least one of ammonium chloride, ammonia, nitrogen, argon and hydrogen. An alloy containing at least one selected from the group consisting of aluminum, iron, nickel, cobalt, chromium, molybdenum, tungsten, and titanium in the surface layer of the base material by diffusively bonding the thermal spray coating components to the base material by heat treatment at a temperature of 3 to 24 hours. A method for forming a molten metal corrosion resistant film forming member having properties such as molten metal corrosion resistance, heat resistance and oxidation resistance by forming a layer and further nitriding to form a composite alloy layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24437198A JP2000064024A (en) | 1998-08-17 | 1998-08-17 | Molten metal-corrosion resistant film forming material and formation of film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24437198A JP2000064024A (en) | 1998-08-17 | 1998-08-17 | Molten metal-corrosion resistant film forming material and formation of film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000064024A true JP2000064024A (en) | 2000-02-29 |
Family
ID=17117706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24437198A Pending JP2000064024A (en) | 1998-08-17 | 1998-08-17 | Molten metal-corrosion resistant film forming material and formation of film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000064024A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006152384A (en) * | 2004-11-30 | 2006-06-15 | Toyo Tanso Kk | Composite layer coating member having excellent halogen corrosion resistance and production method thereof |
| KR101303272B1 (en) * | 2009-12-28 | 2013-09-03 | 지앙수 린롱 뉴 머티리얼스 컴퍼니, 리미티드 | Method for carrying out diffusion treatment on coating of engineering parts resistant to marine climate |
| KR101464287B1 (en) * | 2010-11-04 | 2014-11-21 | 지앙수 린롱 뉴 머티리얼스 컴퍼니, 리미티드 | Water-soluble coating for anti-corrosion treatment of oceanic climate-resisting engineering parts and preparing method thereof |
-
1998
- 1998-08-17 JP JP24437198A patent/JP2000064024A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006152384A (en) * | 2004-11-30 | 2006-06-15 | Toyo Tanso Kk | Composite layer coating member having excellent halogen corrosion resistance and production method thereof |
| KR101303272B1 (en) * | 2009-12-28 | 2013-09-03 | 지앙수 린롱 뉴 머티리얼스 컴퍼니, 리미티드 | Method for carrying out diffusion treatment on coating of engineering parts resistant to marine climate |
| KR101464287B1 (en) * | 2010-11-04 | 2014-11-21 | 지앙수 린롱 뉴 머티리얼스 컴퍼니, 리미티드 | Water-soluble coating for anti-corrosion treatment of oceanic climate-resisting engineering parts and preparing method thereof |
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