JPH1129893A - Wear-resistant iron-chromium plated aluminum material - Google Patents
Wear-resistant iron-chromium plated aluminum materialInfo
- Publication number
- JPH1129893A JPH1129893A JP21888997A JP21888997A JPH1129893A JP H1129893 A JPH1129893 A JP H1129893A JP 21888997 A JP21888997 A JP 21888997A JP 21888997 A JP21888997 A JP 21888997A JP H1129893 A JPH1129893 A JP H1129893A
- Authority
- JP
- Japan
- Prior art keywords
- chromium
- resin
- aluminum
- iron
- plating layer
- 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
Links
Landscapes
- Laminated Bodies (AREA)
- Electroplating And Plating Baths Therefor (AREA)
- Electroplating Methods And Accessories (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、アルミニウムまたはア
ルミニウム合金を素地とし、この表面に鉄・クロム合金
メッキを施したアルミニウム材料に関するものでる。こ
のようなアルミニウム材料は、自動車工業等の諸産業分
野で今後更に広く使われるようになるものと思われる。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aluminum material whose base material is aluminum or aluminum alloy and whose surface is plated with an iron-chromium alloy. Such an aluminum material is expected to be more widely used in various industrial fields such as the automobile industry in the future.
【０００２】[0002]
【従来の技術】アルミニウム素地に鉄メッキを施したア
ルミニウム材料は今までにも知られている。しかし、鉄
メッキは硬度が低いので、クロムを含む鉄でメッキをす
ることが試みられてきた。クロムを２〜２０％重量含む
鋼は、その硬度が８００〜１２００ＨＶに達することが
知られている。しかし、クロムを含む鉄をアルミニウム
素地上にメッキすると、メッキ面に亀裂が生じてしま
う。2. Description of the Related Art An aluminum material in which an aluminum base is plated with iron has been known. However, since iron plating has low hardness, plating with iron containing chromium has been attempted. Steel containing 2 to 20% by weight of chromium is known to have a hardness of 800 to 1200 HV. However, when iron containing chromium is plated on an aluminum substrate, cracks occur on the plated surface.
【０００３】[0003]
【発明が解決しようとする課題】そこで、本発明は、鉄
・クロム合金メッキしたアルミニウム材料のメッキ面を
活用した耐摩耗性のアルミニウム材料を提供するもので
ある。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a wear-resistant aluminum material utilizing a plated surface of an aluminum material plated with an iron-chromium alloy.
【０００４】[0004]
【課題を解決するための手段】本発明では、亀裂の生じ
た鉄・クロム合金メッキ面にＰＴＦＥ、ナイロン等の熱
可塑性樹脂の皮膜を施した。According to the present invention, a coating of a thermoplastic resin such as PTFE or nylon is applied to the cracked iron / chromium alloy plating surface.
【０００５】かかる皮膜を形成するのには種々の方法が
あるが、溶融させた熱可塑性樹脂の皮膜に一部が亀裂内
に侵入し、常温で固化し、これが皮膜の根となって皮膜
のメッキ面への接着強さが高められることが肝要であ
る。[0005] There are various methods for forming such a film, but a part of the melted thermoplastic resin film penetrates into cracks, solidifies at room temperature, and forms a root of the film to form a film. It is important that the adhesive strength to the plated surface be increased.
【０００６】このような熱可塑性樹脂の皮膜は、摩擦の
過程で生ずる摩擦熱によって稼働中は液化して、潤滑剤
としての役割を果たし、摩擦係数の低下ならびに摩耗量
を軽減する。また、停止した状態では皮膜は固化してい
るため、塵埃などが付着する虞れがなく、摩耗特性を改
善する。[0006] Such a thermoplastic resin film liquefies during operation due to frictional heat generated in the course of friction, serves as a lubricant, and reduces the friction coefficient and reduces the wear amount. Further, since the film is solidified in the stopped state, there is no possibility that dust or the like adheres, and the wear characteristics are improved.
【０００７】また、本発明では、亀裂の生じた鉄・クロ
ム合金メッキ面に、有機溶剤で溶かした熱硬化性樹脂に
亀裂の幅またはそれよりも微細な固体潤滑剤をよく撹拌
混合したものを塗布して皮膜を作り、次いでこれを加熱
して溶剤を揮発させると共に、熱硬化性樹脂を固化させ
る。固体潤滑剤は固化した樹脂を介してメッキ面上と亀
裂中に固着する。特に、亀裂中に侵入して固着した樹脂
と潤滑剤はそれらの皮膜の根となって、皮膜がメッキ面
から剥離するのを防ぐ。摩擦、摩耗の過程で、摩擦面間
に介在する固体潤滑剤が摩擦係数の低下と摩耗量の軽減
のために働くことになる。Further, in the present invention, on the cracked iron / chromium alloy plating surface, a solid lubricant having a crack width or finer than the width of the crack is mixed well with a thermosetting resin dissolved in an organic solvent. The coating is applied to form a film, which is then heated to evaporate the solvent and solidify the thermosetting resin. The solid lubricant is fixed on the plating surface and in the cracks through the solidified resin. In particular, the resin and lubricant that have penetrated into the cracks and adhered become roots of those films and prevent the films from peeling off the plated surface. In the process of friction and wear, the solid lubricant interposed between the friction surfaces works to lower the friction coefficient and reduce the amount of wear.
【０００８】[0008]
実施例１ 厚さ２ｍｍのアルミニウム合金（ＪＩＳ ５０５２）片
を通常のメッキ前処理（脱脂、酸活性、アルカリエッチ
ング、酸活性、亜鉛置換、硫酸浸漬、亜鉛置換等）した
後に、これに約２０ミクロンの厚さのクロムを約１５重
量％含む鉄・クロム合金メッキを、下記の条件で施し
た。Example 1 A piece of an aluminum alloy (JIS 5052) having a thickness of 2 mm was subjected to a normal plating pretreatment (degreasing, acid activity, alkali etching, acid activity, zinc substitution, sulfuric acid immersion, zinc substitution, etc.), and then about 20 microns. A chromium alloy plating containing about 15% by weight of chromium having a thickness of 5 mm was applied under the following conditions.
【０００９】液組成：トライクロムプラス（アトテック
ジャパン社製）をベースとし、これに硫酸第一鉄４０ｇ
／１を添加した。トライクロムプラスは、 塩基性流クロム（皮なめし剤）１２０ｇ／１ 蟻酸アンモニウム ５５ｇ／１ 臭酸アンモニウム １０ｇ／１ 塩化カリウム ５４ｇ／１ 塩化アンモニウム ５４ｇ／１ ホウ酸 ４０ｇ／１ からなり、３価のクロムメッキの組成に相当する。 液 温：３０℃ 陰 極：不溶性のカーボンを使用 電流密度：１５Ａ／ｄｍ２で２分後、１０Ａ／ｄｍ２で
１８分間処理Liquid composition: Trichrome plus (manufactured by Atotech Japan Co., Ltd.), and ferrous sulfate 40 g
/ 1 was added. Trichrome Plus is composed of basic flow chromium (tanning agent) 120 g / 1 ammonium formate 55 g / 1 ammonium bromide 10 g / 1 potassium chloride 54 g / 1 ammonium chloride 54 g / 1 boric acid 40 g / 1 and trivalent chromium. It corresponds to the composition of plating. Liquid temperature: 30 ° C. Negative electrode: Use insoluble carbon Current density: 2 minutes at 15 A / dm 2 , then treated at 10 A / dm 2 for 18 minutes
【００１０】鉄・クロム合金メッキ被覆層の硬さは約８
００ＨＶであり、その面を走査型電子顕微鏡で観察した
ところ、メッキ被覆層の面に全面にわたって微細な凸凹
があり、そしてこの凸凹に関係なく亀裂が亀甲状に生じ
ていることが認められた。[0010] The hardness of the iron-chromium alloy plating coating layer is about 8
It was 00 HV, and the surface was observed with a scanning electron microscope. As a result, it was confirmed that fine irregularities were present on the entire surface of the plating coating layer, and that cracks were formed in a turtle-like manner regardless of the irregularities.
【００１１】このアルミニウム合金材料片の表面の亀裂
に圧力含浸法をもってＮｙｌｏｎ１１を含浸させると共
に、その摩擦面に該熱可塑性樹脂の薄膜を形成した。A crack on the surface of the aluminum alloy material piece was impregnated with Nylon 11 by a pressure impregnation method, and a thin film of the thermoplastic resin was formed on the friction surface.
【００１２】これを固定試験片とし、ソルバイト組織
（ＨＱＴ）としたＳ４５Ｃを回転試験片として組合せ、
ＰＩＮ−ＲＩＮＧ型摩耗試験機を使い、接触圧力を０．
４９ＭＰａ．として滑り摩耗試験を行った。その結果
は、図１中で本発明材料として示すカーブの通りであっ
た。This was used as a fixed test piece, and S45C with sorbite structure (HQT) was combined as a rotating test piece,
Using a PIN-RING type wear tester, set the contact pressure to 0.
49 MPa. And a sliding wear test was performed. The results were as shown in the curve shown as the material of the present invention in FIG.
【００１３】なお、対比のために、上記したアルミニウ
ム合金片を同様に鉄メッキし、ガス浸硫窒化処理し、対
比固定試験片を作った。この対比試験片はガス浸硫窒化
処理後の冷却を、冷却速度５℃／分で徐冷したので、そ
の鉄メッキ被覆層には亀裂を見なかった。従って、その
鉄メッキ被覆層にはＮｙｌｏｎ １１の薄膜は施さなか
った。これを、前記したところと同様に滑り摩耗試験を
した。その結果図１中で対比材料として示すカーブの通
りである。For comparison, the above-mentioned aluminum alloy pieces were similarly iron-plated and gas-sulfurized and nitrided to produce fixed fixed test pieces. Since the comparative test piece was gradually cooled at a cooling rate of 5 ° C./min after the gas nitrocarburizing treatment, no crack was observed in the iron plating coating layer. Therefore, the Nylon 11 thin film was not applied to the iron plating coating layer. This was subjected to a sliding wear test in the same manner as described above. As a result, the curve is shown as a comparison material in FIG.
【００１４】実施例２ 熱硬化性樹脂であるエポキシ樹脂を有機溶剤で溶かし、
この中に亀裂の幅もしくはそれ以下の粒径をもつ微細な
固体潤滑剤であるＭｏＳ２を加え、充分に撹拌した後
に、これを上述した実施例１のアルミニウム合金片の亀
裂が生成したメッキ面に塗布した。続いて、これを約１
５０℃に加熱し、溶剤を揮発させると共に、エポキシ樹
脂を固化させた。Example 2 An epoxy resin as a thermosetting resin was dissolved in an organic solvent.
MoS 2 which is a fine solid lubricant having a particle size smaller than or equal to the width of the crack is added thereto, and the mixture is sufficiently stirred. Was applied. Then, about 1
The mixture was heated to 50 ° C. to evaporate the solvent and solidify the epoxy resin.
【００１５】その結果、亀裂の内部に固体潤滑剤を含む
樹脂が侵入して固化したために、これが塗布された皮膜
の根となって、皮膜が鉄・クロム合金メッキ面から剥離
することがなかった。As a result, since the resin containing the solid lubricant penetrated into the cracks and solidified, the resin became a root of the applied film, and the film did not peel off from the iron-chromium alloy plating surface. .
【００１６】この実施例による本発明材料は、滑り摩耗
試験で上記した実施例１の本発明材料と同様に摩擦係数
の低下、摩耗量の軽減を示した。The material of the present invention according to this example showed a decrease in the coefficient of friction and a reduction in the amount of wear in the sliding wear test, similarly to the material of the present invention of Example 1 described above.
【００１７】[0017]
【発明の効果】本発明になるアルミニウムまたはアルミ
ニウム合金の外表面に亀裂のある鉄・クロム合金メッキ
被覆層を有し、この鉄・クロム合金メッキ被覆層に熱可
塑性樹脂を含浸させたアルミニウム材料は、図１に示す
滑り摩耗試験の結果の通り、優れた摩耗特性を現すこと
が認められた。The aluminum or aluminum alloy according to the present invention has a cracked iron / chromium alloy plating coating layer on the outer surface, and the iron / chromium alloy plating coating layer is impregnated with a thermoplastic resin. As shown in the results of the sliding wear test shown in FIG. 1, it was confirmed that excellent wear characteristics were exhibited.
【００１８】また、本発明になる鉄・クロム合金メッキ
被覆層に微細な固体潤滑剤を固着させたアルミニウム材
料も、同様な滑り摩耗試験において、その試験の摩擦速
度の範囲で比摩耗量が少ないことが認められた。さら
に、素地のアルミニウム合金が摩擦熱を伝達しやすく
し、材料の表面の温度上昇が防がれていることも考えら
れ、本発明は優れた耐摩耗性材料を提供するものであ
る。Further, the aluminum material having a fine solid lubricant fixed to the iron-chromium alloy plating coating layer according to the present invention also has a small specific wear amount within the range of the friction speed in the similar sliding wear test. It was recognized that. Furthermore, it is conceivable that the base aluminum alloy facilitates the transfer of frictional heat and the temperature of the surface of the material is prevented from rising, and the present invention provides an excellent wear-resistant material.
【図１】滑り摩耗試験の結果を示すグラフで、異なる摩
擦速度における本発明材料と対比材料とのそれぞれの比
摩耗量を示す。FIG. 1 is a graph showing the results of a sliding wear test, showing the respective specific wear amounts of a material of the present invention and a comparative material at different friction speeds.
─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成９年８月２９日[Submission date] August 29, 1997
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００５[Correction target item name] 0005
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【０００５】 かかる皮膜を形成するのには種々の方法
があるが、溶融させた熱可塑性樹脂の皮膜の一部が亀裂
内に侵入し、常温で固化し、これが皮膜の根となって皮
膜のメッキ面への接着強さが高められることが肝要であ
る。[0005] to form such a film There are various ways, some of the film of melted thermoplastic resin penetrates into the cracks, solidifies at room temperature, this coating is a root of the coating It is important that the adhesive strength to the plated surface be increased.
Claims (2)
外表面にクロムを２〜２０重量％を含む鉄メッキ被覆層
を有し、亀裂のあるこの鉄メッキ被覆層に熱可塑性樹脂
を含浸させてなる耐摩耗性のアルミニウム材料。An abrasion resistance obtained by impregnating a thermoplastic resin with an iron plating coating layer containing 2 to 20% by weight of chromium on the outer surface of aluminum or an aluminum alloy, wherein the iron plating coating layer having cracks is impregnated with a thermoplastic resin. Aluminum material.
外表面にクロムを２〜２０重量％含む鉄メッキ被覆層を
有し、亀裂のあるこの鉄メッキ被覆層に微細な固体潤滑
剤を固着させてなる耐摩耗性のアルミニウム材料。2. An abrasion resistance comprising an iron plating coating layer containing 2 to 20% by weight of chromium on the outer surface of aluminum or aluminum alloy, and a fine solid lubricant fixed to the cracked iron plating coating layer. Aluminum material.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21888997A JP3673886B2 (en) | 1997-07-09 | 1997-07-09 | Wear-resistant iron and chrome-plated aluminum material |
| US09/097,030 US6149790A (en) | 1997-07-04 | 1998-06-12 | Method of making iron-electroplated aluminum materials |
| EP98305172A EP0892088B1 (en) | 1997-07-04 | 1998-06-30 | Method of making iron electroplated aluminium materials |
| DE69801404T DE69801404T2 (en) | 1997-07-04 | 1998-06-30 | Process for the production of aluminum-clad aluminum materials |
| CN98103321A CN1122118C (en) | 1997-07-04 | 1998-07-03 | Method of making iron-electroplated aluminium materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21888997A JP3673886B2 (en) | 1997-07-09 | 1997-07-09 | Wear-resistant iron and chrome-plated aluminum material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1129893A true JPH1129893A (en) | 1999-02-02 |
| JP3673886B2 JP3673886B2 (en) | 2005-07-20 |
Family
ID=16726900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21888997A Expired - Fee Related JP3673886B2 (en) | 1997-07-04 | 1997-07-09 | Wear-resistant iron and chrome-plated aluminum material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3673886B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100360536B1 (en) * | 1999-12-29 | 2002-11-13 | 대우종합기계 주식회사 | Hard chronium coatings and manufacturing method thereof |
| CN109922669A (en) * | 2016-11-16 | 2019-06-21 | 大日本印刷株式会社 | The gasification installation of fungicide |
-
1997
- 1997-07-09 JP JP21888997A patent/JP3673886B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100360536B1 (en) * | 1999-12-29 | 2002-11-13 | 대우종합기계 주식회사 | Hard chronium coatings and manufacturing method thereof |
| CN109922669A (en) * | 2016-11-16 | 2019-06-21 | 大日本印刷株式会社 | The gasification installation of fungicide |
| CN109922669B (en) * | 2016-11-16 | 2023-02-24 | 大日本印刷株式会社 | Bactericide gasifying device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3673886B2 (en) | 2005-07-20 |
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