JPS5850320B2 - Exterior parts for watches - Google Patents
Exterior parts for watchesInfo
- Publication number
- JPS5850320B2 JPS5850320B2 JP13806479A JP13806479A JPS5850320B2 JP S5850320 B2 JPS5850320 B2 JP S5850320B2 JP 13806479 A JP13806479 A JP 13806479A JP 13806479 A JP13806479 A JP 13806479A JP S5850320 B2 JPS5850320 B2 JP S5850320B2
- Authority
- JP
- Japan
- Prior art keywords
- plating
- alloy plating
- gold
- alloy
- 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.)
- Expired
Links
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- Electroplating Methods And Accessories (AREA)
Description
【発明の詳細な説明】
本発明は、Ａ ｕ −（’ ｕ −Ｃｄ合金メッキを施
した時計用外装部品、即ち側、裏ブタ、リューズ、ガラ
ス縁、バンド、文字板、針などに関するものである。[Detailed Description of the Invention] The present invention relates to exterior parts for watches, such as sides, back lids, crowns, glass rims, bands, dials, hands, etc., coated with A u-('u-Cd alloy plating). be.
従来、時計用外装部品の金メツキ構成としては洋白材ま
たは黄銅材を使用した素材の表面にまずＡｕ−Ａｇ系合
金メッキを下地メッキとして施し、その上に仕上げメッ
キとしてＡｕＮｉ系合金メッキを行なっていた。Conventionally, the gold plating composition of exterior parts for watches is to first apply Au-Ag alloy plating to the surface of a material using nickel silver or brass as a base plating, and then apply AuNi alloy plating as a finishing plating. was.
この金メツキ構成において、下地メッキとして施すＡｕ
−Ａｇ系合金メッキは、金相に１４〜に１８位でコスト
的には、安価でありメッキ層の応力が少ないために、数
十μ以上Ｇ厚付が可能であるが、色調の点で、金色が薄
く、イエローゴールド色を呈し、時計用外装部品の金メ
ッキの表面色調としては、高級感に欠ける色調である。In this gold plating configuration, Au is applied as the base plating.
-Ag-based alloy plating is 14th to 18th to gold phase, and in terms of cost, it is cheap and the stress in the plating layer is low, so it is possible to apply G thickness of several tens of microns or more, but in terms of color tone. The gold color is pale and has a yellow gold color, which is a color tone that lacks a sense of luxury as a gold-plated surface color of an exterior part for a watch.
また、Ａｕ−Ａｇ系合金メッキは、銀を含有しているた
めに、耐食性も芳しくなく汗により変色したり大気中放
置したままで、携帯期間１〜２力月で変色し美観を害し
てしまう。In addition, since Au-Ag alloy plating contains silver, it has poor corrosion resistance and discolors due to sweat, and if left in the atmosphere, discolors within a month or two of being carried and spoils its aesthetic appearance. .
以上の理由から、Ａｕ−Ａｇ系合金メッキの上に更に、
仕上げメッキとしてＡｕ−Ｎｉ系合金メッキを施こして
いる。For the above reasons, on top of Au-Ag alloy plating,
Au-Ni alloy plating is applied as finishing plating.
仕上げメッキとして施されるＡｕ−Ｎｉ系合金メッキは
、色調の点でおちついた高級感のある金色を呈し、我々
の要求する色調にマツチしている。The Au-Ni alloy plating applied as the final plating has a calm and luxurious golden color, which matches the color tone we require.
しかし、このＡｕ−Ｎｉ系合金メッキは、メッキ層の応
力が高いために、最高３μ位が限度であり、これ以上の
厚付を施こすとメッキ層にクラックが生じ、このため耐
食性を低下させる。However, due to the high stress in the plating layer, this Au-Ni alloy plating is limited to a maximum thickness of about 3μ, and if it is thicker than this, cracks will occur in the plating layer, which will reduce corrosion resistance. .
またＡｕ Ｎｉ系合金メッキは、硬度がＨｖ２２０〜２
３０位と低く、メッキ厚みも３μという薄いメッキであ
るため、特に時計用外装部品の各コーナ一部分が携帯期
間２〜３力月位で摩耗する事があり、下地メッキのＡｕ
−Ａｇ系合金メッキが露出し下地メッキのＡｕ−Ａｇ系
合金メッキと仕上げメッキのＡｕ−Ｎｉ系合金メッキと
の間に、極端な色調差が生じ、外観上望ましくない。In addition, the hardness of Au Ni alloy plating is Hv220~2.
Since the plating is as thin as 30th place and the plating thickness is as thin as 3μ, parts of each corner of the watch's exterior parts may wear out after about 2 to 3 months of use.
- The Ag-based alloy plating is exposed and an extreme difference in color tone occurs between the Au--Ag-based alloy plating as the base plating and the Au--Ni-based alloy plating as the final plating, which is undesirable in terms of appearance.
また、このように下地メッキのＡｕ−Ａｇ系合金メッキ
の露出したことにより、成分中のＡｇが点状の腐食を発
生し耐食性を低下させる。Further, due to the exposure of the Au-Ag based alloy plating as the base plating, the Ag in the component causes spot-like corrosion, reducing the corrosion resistance.
下地メッキとして、他にＡｕ−Ｃｕ合金メッキ（Ａｕ
６０〜８５％、残Ｃｕ）、Ａｕ−Ｃｏ（Ａｕ ６５〜９
０％、残Ｃｕ）等がある。In addition, Au-Cu alloy plating (Au
60-85%, remaining Cu), Au-Co (Au 65-9
0%, residual Cu), etc.
本発明の目的は、このような欠点をカバーするために、
素材面に対して所定厚みのＮｉメッキを施し、その上の
下地メッキＡｕ−Ａｇ系合金メッキ層と仕上げメッキＡ
ｕ−Ｎｉ−１ｎ合金メッキ層との間に、Ａｕ−Ｃｕ−Ｃ
ｄ合金メッキを施こすことにより、耐食性及び耐摩耗性
があり、高級感のある金メッキを施した時計用外装部品
を提供することにある。The purpose of the present invention is to cover such drawbacks,
Ni plating is applied to the material surface to a predetermined thickness, and then the base plating Au-Ag alloy plating layer and the final plating A are applied.
Au-Cu-C between the u-Ni-1n alloy plating layer
To provide a gold-plated watch exterior part that has corrosion resistance and abrasion resistance and has a high-class feel by applying d-alloy plating.
以下本発明の詳細な説明について以下に述べる。A detailed explanation of the present invention will be given below.
本発明の金メツキ構成は、洋白材または黄銅材を使用し
た素材の表面にまず所定厚さのＮｉメツキ層を形成し、
次に下地メッキとしてＡｕ−Ａｇ系合金メッキを施し、
その上にＡｕ−Ｃｕ−Ｃｄ合金メッキを施し、更にその
上に仕上メッキとしてＡｕ−Ｎｉ−Ｉｎ合金メッキを施
したものである。The gold plating structure of the present invention first forms a Ni plating layer of a predetermined thickness on the surface of a material using nickel silver or brass material,
Next, Au-Ag alloy plating is applied as base plating,
Au--Cu--Cd alloy plating is applied thereon, and furthermore, Au--Ni--In alloy plating is applied thereon as a final plating.
この金メツキ構成の中で、使用するＡ ｕ −Ｃｕ −
（” ｄ合金メッキは重量比で、Ｃｕ１０〜２５％、ｃ
ｄ２〜４饅、残部量及び不可避的不純物からなるもので
ある。In this gold plating configuration, the A u −Cu −
(The weight ratio of d alloy plating is Cu10~25%, c
It consists of d2-4 steamed rice, the remaining amount and unavoidable impurities.
このＡｕ−Ｃｕ−Ｃｄ合金メッキの特徴としてはメッキ
層自体の硬度が硬く、）（ｖ３５０位になり、このため
耐摩耗性の点ですぐれ、従来のＡｕ−Ａ ｇ合金メッキ
及びＡｕ−Ｎｉ系合金メッキに比べ、数倍以上の耐久性
がある。The characteristic of this Au-Cu-Cd alloy plating is that the hardness of the plating layer itself is about 350 v. Therefore, it has excellent wear resistance and is superior to conventional Au-Ag alloy plating and Au-Ni alloy plating. It is several times more durable than alloy plating.
また色調の点でもＡｕ −Ｎｉ系合金メッキの高級感あ
る色調が得られるため携帯途中でたとえ仕上げメッキの
Ａｕ−Ｎｉ系合金メッキが摩耗しても、色調の差がなく
、外観をそこなうことが少ない。In addition, in terms of color tone, you can obtain the luxurious color tone of Au-Ni alloy plating, so even if the final Au-Ni alloy plating wears out while carrying, there will be no difference in color tone and the appearance will not be damaged. few.
しかもＡｕ−Ｃｕ−Ｃｄ合金メッキが硬質であるために
、この層でメッキの摩耗を防止する事ができる。Furthermore, since the Au-Cu-Cd alloy plating is hard, this layer can prevent wear of the plating.
また、厚みについては携帯試験の結果によれば、メッキ
層２μあれば十分であるが、０．２５μ以下だと効果が
なく、５μ以上だとコスト面での問題がある。Regarding the thickness, according to the results of mobile tests, a plating layer of 2 μm is sufficient, but if it is less than 0.25 μm, it is ineffective, and if it is more than 5 μm, there are problems in terms of cost.
更に耐食性も従来の下地メッキＡｕ −Ａ ｇ系合金メ
ッキに比べすぐれていることもわかった。Furthermore, it was also found that the corrosion resistance was superior to that of the conventional base plating Au-Ag alloy plating.
成分的にＡｕ−Ｃｕ−Ｃｄ合金メッキは、Ｃｕの含有量
が２５％以上を越えると、赤味が強い金色となり、更に
耐食性を低下させる。In terms of composition, when the Cu content of Au-Cu-Cd alloy plating exceeds 25%, it becomes a golden color with a strong reddish tinge, further reducing corrosion resistance.
またＣｕ含有量１０％以下になると、所望の硬度が得ら
れない。Further, if the Cu content is less than 10%, desired hardness cannot be obtained.
Ｃｄの含有量が４％を越えると、赤味のない黄色の強い
金色となり、硬度及び耐食性を低下させる。When the Cd content exceeds 4%, the color becomes a strong golden color with no reddish tint, resulting in decreased hardness and corrosion resistance.
またＣｄ含有量が２％以下になると、白味がほとんどな
い赤味の強い金色となる。Furthermore, when the Cd content is 2% or less, the color becomes golden with a strong reddish tinge and almost no whitishness.
以下、本発明による金メツキ構成と従来の金メツキ構成
について、図面に基づいて説明する。Hereinafter, the gold plating structure according to the present invention and the conventional gold plating structure will be explained based on the drawings.
第１図は、従来の金メツキ構成、１−ａは素材、ｌ−ｅ
はＮｉメッキ、１−ｂはＡｕ−Ａｇ系合金メッキ、ｌ−
ｃはＡｕ−Ｎｉ系合金メッキである。Figure 1 shows the conventional gold plating configuration, 1-a is the material, l-e
is Ni plating, 1-b is Au-Ag alloy plating, l-
c is Au-Ni alloy plating.
第２図は、本発明による金メツキ構成で、２− ａは素
材のステンレス、黄銅、洋白などの金属である。FIG. 2 shows a gold-plated structure according to the present invention, and 2-a is a metal such as stainless steel, brass, or nickel silver.
２− ｅはＮｉメッキ、２−ｂはＡ ｕ−Ａｇ系合金メ
ッキ。2-e is Ni plating, 2-b is Au-Ag alloy plating.
２−ｃはＡｕ−Ｃｕ−Ｃｄ合金メッキ。２−ＤはＡｕ−
Ｎｉ系合金メッキである。2-c is Au-Cu-Cd alloy plating. 2-D is Au-
It is Ni-based alloy plating.
実施例 １
（８）本発明
次の条件と順序で素材である時計用側の表面にメッキを
施した。Example 1 (8) Present Invention Plating was applied to the surface of the watch side of the material under the following conditions and order.
ＣＢ） 従来例（比較例）
次の条件と順序で素材である時計用側の表面にメッキを
施した。CB) Conventional Example (Comparative Example) Plating was applied to the surface of the watch side of the material under the following conditions and order.
実施例 ２
（ｑ 本発明
次の条件と順序で素材である時計用側の表面にメッキを
施した。Example 2 (q) The surface of the watch side of the material was plated under the following conditions and order.
（ト）従来例（比較例）
次の条件と順序で素材の時計用側の表面にメキを施した
。(G) Conventional Example (Comparative Example) Plating was applied to the watch side surface of the material under the following conditions and order.
上記に示した条件で、時計用外装部品の側の表面にメッ
キを施したものについて、前述と同様耐摩耗性試験を行
なったところ、（Ａ）は摩耗後メッキ表面の摩耗部と非
摩耗部には色調差は見られず、摩耗減量は２．５μであ
った。Under the conditions shown above, a wear resistance test was conducted in the same manner as above on the surface of the external watch parts plated, and (A) showed the worn parts and non-worn parts of the plated surface after wear. No difference in color tone was observed, and the abrasion loss was 2.5μ.
（Ｂ）は摩耗後メッキ表面に、Ａｕ−Ａｇ合金メッキが
露出し、非摩耗部のＡｕ−Ｎｉ−Ｉｎ合金メッキとの間
に色調差が生じ、外観上望ましくなかった。In (B), the Au-Ag alloy plating was exposed on the plated surface after wear, and a difference in color tone occurred between the Au-Ag alloy plating and the Au-Ni-In alloy plating on the non-worn parts, which was undesirable in terms of appearance.
摩耗減量は４μと非常に摩耗し、明らかに（４）との差
があられれた。The abrasion loss was 4μ, which was extremely abrasive, and there was a clear difference from (4).
（耐摩耗性試験条件は、次のとおりである。(The abrasion resistance test conditions are as follows.
耐摩耗性試験条件二時計用外装部品のメッキ表面を牛皮
裏でストローク４〜５ｃＩｒＬ、荷重５００ｇで往復３
万回摩擦する。Abrasion resistance test conditions 2 Stroke 4 to 5 cIrL on the plating surface of the watch's exterior parts with the back of cowhide, 3 reciprocations with a load of 500g
Friction a thousand times.
）また、耐摩耗性試験後の耐食性試験を行なったところ
、（Ｂ）は１０時間より摩耗部に点状の腐食が発生した
。) Furthermore, when a corrosion resistance test was conducted after the wear resistance test, point-like corrosion occurred in the worn parts of (B) after 10 hours.
（Ａ）は２４時間で何も変化が見られなかった。No change was observed in (A) after 24 hours.
（耐食性試験条件は、次のとおりである。耐食性試験条
件二時計用外装部品を人工汗中に全部浸漬した状態で容
器を密閉し、４０℃中に２４時間放置する。(Corrosion resistance test conditions are as follows. Corrosion resistance test conditions 2) With the exterior parts of the watch completely immersed in artificial sweat, the container is sealed and left at 40° C. for 24 hours.
）以上の結果を見ると、（Ｎの方が（）３）より良好で
あった。) Looking at the above results, (N was better than ()3).
上記に示した条件で、時計用外装部品の側の表面にメッ
キを施したものについて、耐摩耗性試験を行なったとこ
ろ、（Ｑは摩耗後メッキ表面の摩耗部と非摩耗部には色
調差は見られず、摩耗減量は２．６μであった。A wear resistance test was conducted on the plated surface of the watch exterior part under the conditions shown above. was not observed, and the abrasion loss was 2.6μ.
ＣＤ）は摩耗後メッキ表面にＡｕ−Ａｇ合金メッキが露
出し、非磨耗部のＡｕ−ＮｉＩｎ合金メッキとの間に色
調差が生じ外観上望ましくなかった。In the case of CD), the Au-Ag alloy plating was exposed on the plated surface after wear, and a difference in color tone occurred between the plated surface and the Au-NiIn alloy plating on the non-worn parts, which was undesirable in terms of appearance.
摩耗減量は３．９μと非常に摩耗し、明らかに（Ｃ）と
の差があられれた。The abrasion loss was 3.9μ, which was extremely abrasive, and there was a clear difference from (C).
（耐摩耗性試験条件は、実施例１と同様に行なった。(The abrasion resistance test conditions were the same as in Example 1.
）また、耐摩耗性試験後の耐食性試験を行なったところ
、υ）は１２時間より摩耗部に点状の腐食が発生した。) Also, when a corrosion resistance test was conducted after the wear resistance test, point-like corrosion occurred in the worn parts of υ) after 12 hours.
（ｑは２４時間で例も変化が見られなかった。(No change was observed in q after 24 hours.
（耐食性試験条件は、実施例１と同様に行なった。(The corrosion resistance test conditions were the same as in Example 1.
）以上の結果を見ると、（Ｑの方が−より良好であった
。) Looking at the above results, (Q was better than -).
本発明の中で示している時計用外装部品とは、側、ウラ
ブタ、リュウズ、見切板、ガラス縁、針、文字板等であ
る。The exterior parts for a timepiece shown in the present invention include the sides, back cover, crown, parting plate, glass rim, hands, dial plate, and the like.
第１図は従来の金メツキ構成においてのメッキ層断面図
である。
第２図は本発明の金メツキ構成においてのメッキ層断面
図である。
１− ａ 、 ２− ａ ＝素材、１−ｂ 、 ２−ｂ
−・−・・−全一銀系合金メツキ、１−ｃ、２−Ｄ・・
・・・・金−ニッケル系合金メッキ、２− ｃ・・・・
・・金−銅一カドミウム合金メッキ。FIG. 1 is a sectional view of a plating layer in a conventional gold plating structure. FIG. 2 is a sectional view of the plating layer in the gold plating structure of the present invention. 1-a, 2-a = material, 1-b, 2-b
-・-・・All-silver alloy plating, 1-c, 2-D・・
...Gold-nickel alloy plating, 2-c...
・Gold-copper-cadmium alloy plating.
Claims (1)
ｕ −Ａ ｇ合金メッキ層、重量比でＣｕ１Ｏ〜２５
％、Ｃｄ ２〜４俤、残部Ａｕ及び不可避的不純物から
成り、厚み０．２５〜５μのＡｕ−Ｃｕ−Ｃｄ合金メッ
キ層、及びＡｕ−Ｎｉ−Ｉｎ合金メッキ層を順次布する
ことを特徴とする時計用外装部品。1 Ni plating layer having a predetermined thickness with respect to the material surface, A
u-A g alloy plating layer, weight ratio Cu1O~25
%, Cd 2 to 4 t, the balance is Au and unavoidable impurities, and is characterized by sequentially disposing an Au-Cu-Cd alloy plating layer and an Au-Ni-In alloy plating layer with a thickness of 0.25 to 5μ. Exterior parts for watches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13806479A JPS5850320B2 (en) | 1979-10-25 | 1979-10-25 | Exterior parts for watches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13806479A JPS5850320B2 (en) | 1979-10-25 | 1979-10-25 | Exterior parts for watches |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5662985A JPS5662985A (en) | 1981-05-29 |
| JPS5850320B2 true JPS5850320B2 (en) | 1983-11-09 |
Family
ID=15213127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13806479A Expired JPS5850320B2 (en) | 1979-10-25 | 1979-10-25 | Exterior parts for watches |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5850320B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH032012Y2 (en) * | 1986-10-08 | 1991-01-21 |
-
1979
- 1979-10-25 JP JP13806479A patent/JPS5850320B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH032012Y2 (en) * | 1986-10-08 | 1991-01-21 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5662985A (en) | 1981-05-29 |
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