JPH06184793A - Surface treatment of aluminum alloy product - Google Patents

Surface treatment of aluminum alloy product

Info

Publication number
JPH06184793A
JPH06184793A JP33994392A JP33994392A JPH06184793A JP H06184793 A JPH06184793 A JP H06184793A JP 33994392 A JP33994392 A JP 33994392A JP 33994392 A JP33994392 A JP 33994392A JP H06184793 A JPH06184793 A JP H06184793A
Authority
JP
Japan
Prior art keywords
aluminum alloy
treatment
surface treatment
alloy product
article
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.)
Granted
Application number
JP33994392A
Other languages
Japanese (ja)
Other versions
JP3229043B2 (en
Inventor
Tetsuya Inada
哲哉 稲田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP33994392A priority Critical patent/JP3229043B2/en
Publication of JPH06184793A publication Critical patent/JPH06184793A/en
Application granted granted Critical
Publication of JP3229043B2 publication Critical patent/JP3229043B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

PURPOSE:To efficiently and simultaneously carry out surface treatment and soln. heat treatment of an aluminum alloy product by applying hard anodization to an aluminum alloy forged article and then dipping the article in the melting fluororesin to seal the article. CONSTITUTION:An aluminum alloy forged article is subjected to finishing and hard anodization before soln. heat treatment and then dipped in a melting fluororesin. Since the resin is heated and melted, the degree of freedom is increased, the resin is sufficiently infiltrated into the hole of the anodized film to surely seal the hole, and the corrosion is prevented in the hole. Further, soln. heat treatment of the aluminum alloy product is simultaneously carried out by the heat of melting resin. As a result, an aluminum alloy product is simultaneously and efficiently surface-treated and heat-treated without lowering the strength of a forged material.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明はアルミニウム合金製品の
表面処理方法に関し、特に海中にて使用する機器のケー
シングの製作に有利に適用される同方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface treatment method for aluminum alloy products, and more particularly to the same method which is advantageously applied to the production of casings for equipment used in the sea.

【0002】[0002]

【従来の技術】従来、アルミニウム合金製品を製作する
に当っては、アルミニウム合金を型で鍛造するか、鍛造
後大まかに機械加工し、その後熱処理を行い、さらに精
密加工を施し、その後表面処理として硬質陽極酸化処理
し、フッ素系樹脂を含浸させている。
2. Description of the Related Art Conventionally, in the production of aluminum alloy products, aluminum alloy is forged with a mold or roughly machined after forging, followed by heat treatment, further precision machining, and then surface treatment. Hard anodizing treatment and impregnated with fluorine resin.

【0003】[0003]

【発明が解決しようとする課題】従来の表面処理では、
フッ素系樹脂の粒径によって硬質陽極酸化皮膜の孔に充
分に入り込めないため、海水中においてステンレス鋼や
チタンなどとこの表面処理をしたアルミニウム合金製機
器を接合すると電食が始まり、機器の破損につながって
いた。また、表面処理を熱を加えてフッ素系樹脂の孔の
入り込みを行わせた場合、鍛造品の熱処理の効果がなく
なり強度上問題が生じてきていた。
In the conventional surface treatment,
Due to the particle size of the fluorinated resin, it cannot fully enter the holes of the hard anodic oxide film, so when stainless steel or titanium is joined to this surface-treated aluminum alloy device in seawater, electrolytic corrosion will start and the device will be damaged. Was connected to. In addition, when heat is applied to the surface treatment to make the holes of the fluororesin enter, the heat treatment of the forged product loses its effect and a problem in strength occurs.

【0004】本発明は上記技術水準に鑑み、従来法にお
けるような不具合のないアルミニウム合金製品の表面処
理方法を提供しようとするものである。
In view of the above-mentioned state of the art, the present invention aims to provide a surface treatment method for an aluminum alloy product which does not have the problems of the conventional method.

【0005】[0005]

【課題を解決するための手段】本発明はアルミニウム合
金鍛造品の溶体化処理以前に仕上げ加工及び硬質陽極酸
化処理を施こした後、フッ素系樹脂の加熱溶融液に浸
し、表面処理と溶体化処理を同時に行うことを特徴とす
るアルミニウム合金製品の表面処理方法である。
Means for Solving the Problems According to the present invention, after finishing and hard anodizing treatment before solution heat treatment of an aluminum alloy forged product, the aluminum alloy forge is immersed in a heating melt of a fluororesin for surface treatment and solution heat treatment. A surface treatment method for an aluminum alloy product, which is characterized in that the treatments are performed simultaneously.

【0006】本発明の硬質陽極酸化処理条件は一般的に
電解液温度4〜5℃、電流密度2Aの条件で膜厚12.
5μm以上の硬質陽極酸化膜を形成させる方法が採られ
る。フッ素系樹脂としてはポリテトラフルオロエチレン
などがあげられる。
The hard anodizing treatment conditions of the present invention are generally such that the electrolyte temperature is 4 to 5 ° C. and the current density is 2 A.
A method of forming a hard anodic oxide film having a thickness of 5 μm or more is adopted. Examples of the fluorine-based resin include polytetrafluoroethylene and the like.

【0007】[0007]

【作用】フッ素系樹脂を加熱溶融することで自由度が増
加し、硬質陽極酸化処理膜に存在する孔の封孔処理がよ
り確実に行えるようになると共に、加熱溶融したフッ素
系樹脂の熱によりアルミニウム合金製品の溶体化処理を
することができる。
[Function] By heating and melting the fluorine-based resin, the degree of freedom is increased, and the pores existing in the hard anodized film can be more reliably sealed. Solution treatment of aluminum alloy products can be performed.

【0008】[0008]

【実施例】本発明の一実施例をあげて説明する。まず製
造されたアルミニウム合金(A6061)鋳塊を必要な
ら切断後、加熱してプレス又はハンマーにて鍛造し、機
械加工(仕上げまで実施)し、この加工品を硬質陽極酸
化処理(硬質アルマイト処理)し、多孔質の硬質酸化皮
膜層を作る。その後、溶体化処理として約500℃で約
4時間加熱した後、焼入れ(水冷)し、時効硬化処理及
び表面処理として約200℃のフッ素系樹脂溶融液に約
8時間浸し、人工時効を行う。
EXAMPLE An example of the present invention will be described. First, the manufactured aluminum alloy (A6061) ingot is cut if necessary, then heated and forged by a press or hammer, machined (finished), and this processed product is hard anodized (hard anodized) To form a porous hard oxide film layer. Then, as a solution treatment, after heating at about 500 ° C. for about 4 hours, quenching (water cooling), and as an age hardening treatment and surface treatment, immersing in a fluororesin melt at about 200 ° C. for about 8 hours are carried out to perform artificial aging.

【0009】図2に従来のフッ素系樹脂の表面処理の断
面を示すが、図2に示すとおり、孔質皮膜の封孔が不充
分である。これに対して、本発明によれば図1に示すと
おり、充分な封孔処理が行える。
FIG. 2 shows a cross section of a conventional surface treatment of a fluororesin, but as shown in FIG. 2, the porous film is insufficiently sealed. On the other hand, according to the present invention, as shown in FIG. 1, sufficient sealing treatment can be performed.

【0010】[0010]

【発明の効果】本発明により下記の効果を奏することが
できる。 (1)多孔性皮膜の孔部に充分にフッ素系樹脂を含浸さ
せることで孔部での腐食を大きく減少させることができ
る。 (2)アルミニウム合金鍛造材の強度を落とすことがな
く充分な表面処理ができる。 (3)表面処理と熱処理を同時に行えるので工程数を減
少させることができる。
According to the present invention, the following effects can be obtained. (1) By sufficiently impregnating the pores of the porous film with the fluororesin, the corrosion in the pores can be greatly reduced. (2) A sufficient surface treatment can be performed without reducing the strength of the aluminum alloy forged material. (3) Since the surface treatment and the heat treatment can be performed simultaneously, the number of steps can be reduced.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明方法によって得られたアルミニウム合金
硬質陽極酸化処理皮膜の封孔処理状態を示す説明図。
FIG. 1 is an explanatory view showing a sealing treatment state of an aluminum alloy hard anodized coating obtained by the method of the present invention.

【図2】従来方法によって得られたアルミニウム合金硬
質陽極酸化処理皮膜の封孔処理状態を示す説明図。
FIG. 2 is an explanatory view showing a sealing treatment state of an aluminum alloy hard anodizing coating obtained by a conventional method.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 アルミニウム合金鍛造品の溶体化処理以
前に仕上げ加工及び硬質陽極酸化処理を施こした後、フ
ッ素系樹脂の加熱溶融液に浸し、表面処理と溶体化処理
を同時に行うことを特徴とするアルミニウム合金製品の
表面処理方法。
1. A method for performing surface treatment and solution treatment at the same time by subjecting a forged aluminum alloy product to a finishing treatment and a hard anodizing treatment before the solution treatment, and then immersing it in a heating melt of a fluororesin. Surface treatment method for aluminum alloy products.
JP33994392A 1992-12-21 1992-12-21 Surface treatment method for aluminum alloy products Expired - Lifetime JP3229043B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP33994392A JP3229043B2 (en) 1992-12-21 1992-12-21 Surface treatment method for aluminum alloy products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP33994392A JP3229043B2 (en) 1992-12-21 1992-12-21 Surface treatment method for aluminum alloy products

Publications (2)

Publication Number Publication Date
JPH06184793A true JPH06184793A (en) 1994-07-05
JP3229043B2 JP3229043B2 (en) 2001-11-12

Family

ID=18332230

Family Applications (1)

Application Number Title Priority Date Filing Date
JP33994392A Expired - Lifetime JP3229043B2 (en) 1992-12-21 1992-12-21 Surface treatment method for aluminum alloy products

Country Status (1)

Country Link
JP (1) JP3229043B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012111739A1 (en) * 2011-02-18 2012-08-23 アイシン軽金属株式会社 Surface treatment method for metal member and metal member obtained by same
CN108774471A (en) * 2018-05-24 2018-11-09 上海凤凰自行车江苏有限公司 A kind of strengthening treatment process for being conducive to promote damping bicycle accessory comprehensive performance
CN108866553A (en) * 2018-05-30 2018-11-23 株洲航发橡塑制品有限公司 The ultrasonic cleaning process of Al alloy parts anodized surface
CN111204008A (en) * 2018-11-22 2020-05-29 比亚迪股份有限公司 Metal resin complex and preparation method and application thereof
CN112635281A (en) * 2019-09-24 2021-04-09 中微半导体设备(上海)股份有限公司 Part and hole sealing method thereof, plasma processing device and working method thereof
CN114316693A (en) * 2021-12-30 2022-04-12 王永勤 Preparation method of super-hydrophobic coating
CN115427603A (en) * 2020-04-24 2022-12-02 诺维尔里斯公司 Thermally modified oxide-based pretreatment for metals and method for producing said metals

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012111739A1 (en) * 2011-02-18 2012-08-23 アイシン軽金属株式会社 Surface treatment method for metal member and metal member obtained by same
JP5878133B2 (en) * 2011-02-18 2016-03-08 アイシン軽金属株式会社 Method for surface treatment of metal members
CN108774471A (en) * 2018-05-24 2018-11-09 上海凤凰自行车江苏有限公司 A kind of strengthening treatment process for being conducive to promote damping bicycle accessory comprehensive performance
CN108774471B (en) * 2018-05-24 2021-02-19 上海凤凰自行车江苏有限公司 Strengthening treatment process beneficial to improving comprehensive performance of damping bicycle accessories
CN108866553A (en) * 2018-05-30 2018-11-23 株洲航发橡塑制品有限公司 The ultrasonic cleaning process of Al alloy parts anodized surface
CN111204008A (en) * 2018-11-22 2020-05-29 比亚迪股份有限公司 Metal resin complex and preparation method and application thereof
CN112635281A (en) * 2019-09-24 2021-04-09 中微半导体设备(上海)股份有限公司 Part and hole sealing method thereof, plasma processing device and working method thereof
CN112635281B (en) * 2019-09-24 2024-04-05 中微半导体设备(上海)股份有限公司 Component, hole sealing method thereof, plasma processing device and working method thereof
CN115427603A (en) * 2020-04-24 2022-12-02 诺维尔里斯公司 Thermally modified oxide-based pretreatment for metals and method for producing said metals
CN114316693A (en) * 2021-12-30 2022-04-12 王永勤 Preparation method of super-hydrophobic coating

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