JPS5867890A - Outer parts for watch - Google Patents
Outer parts for watchInfo
- Publication number
- JPS5867890A JPS5867890A JP16657781A JP16657781A JPS5867890A JP S5867890 A JPS5867890 A JP S5867890A JP 16657781 A JP16657781 A JP 16657781A JP 16657781 A JP16657781 A JP 16657781A JP S5867890 A JPS5867890 A JP S5867890A
- Authority
- JP
- Japan
- Prior art keywords
- plating
- plating layer
- alloy plating
- watch
- corrosion resistance
- 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
- Electroplating Methods And Accessories (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
【発明の詳細な説明】 本発明は、時計用外装部品に関するものである。[Detailed description of the invention] The present invention relates to an exterior part for a timepiece.
更に詳しくは、金めつきした時計用外装部品の耐食性を
著しく向上せしめたものである。More specifically, it significantly improves the corrosion resistance of gold-plated watch exterior parts.
従来、時計用外装部品の金めつきは、時計ケースを例に
たとえ説明するとニラナル、二ツー？ルーコバルト合金
の下地めっきを１〜５ミクロン施し、その上にＡｕ−Ａ
ｆ！、 Ａｕ−Ｃｕ 、 Ａｕ−Ｎ ｉ −Ｉｎ、Ａｕ
−Ｐｄなどの金合金めっきを５ミクロン程度施していた
。Traditionally, the gold plating of external parts for watches has been explained using the example of a watch case. A base plating of leucobalt alloy of 1 to 5 microns is applied, and then Au-A
f! , Au-Cu, Au-Ni-In, Au
- Gold alloy plating such as Pd was applied to about 5 microns.
しかしこれらは、すじ目仕上げの様に表面が凹凸状にな
っている場合は、すじ目の谷部にめっきが完全に被覆さ
れにくいため、苛酷な使用環境下では、腐食され易いと
いう問題があった。However, if the surface is uneven, such as with a lined finish, it is difficult for the plating to completely cover the valleys of the lines, so there is a problem that they are susceptible to corrosion under harsh usage environments. Ta.
そこで一般的には、下地めっきまたは、金めつきの厚み
を厚くしたりあるいは、透明樹脂をフーチングする方法
が採られていたが、前記方法では、めっき厚を厚くする
と素地に施こされるすし目仕上げの目付けが消え外観が
損なわれたり、透明樹脂のコーテングでは、キズ、乃ガ
レなどが生じ耐久品質に劣るなどの欠点があった。Generally, methods have been adopted to increase the thickness of base plating or gold plating, or to footing transparent resin. There were drawbacks such as the finish weight disappearing and the appearance being impaired, and the transparent resin coating causing scratches and scuffs, resulting in poor durability.
本発明は、上記欠点に鑑み下地めっきにより耐食性が従
来のものより向上出来ないものか鋭意研究した結果、金
めつきの下地めっきとしてニッケルーリン合金めっきを
施し、更にスズ−コバルト合金めっきを施すことにより
耐食性が飛躍的に向上することがわかった。In view of the above-mentioned drawbacks, the present invention was developed as a result of intensive research into whether the corrosion resistance could be improved by base plating compared to conventional ones.The present invention was developed by applying nickel-phosphorus alloy plating as the base plating for gold plating, and further applying tin-cobalt alloy plating. It was found that corrosion resistance was dramatically improved.
即ち本発明は、下地めっきとしてニッケルーリン合金め
っきを施し、更にその上にスズーコバルト合金めっき層
を形成させた後、金めつきを行うことにより耐食性を著
しく向上せしめた時計用外装部品を得ることに成功した
ものである。That is, the present invention provides an exterior part for a watch that has significantly improved corrosion resistance by applying nickel-phosphorus alloy plating as a base plating, further forming a tin-cobalt alloy plating layer thereon, and then gold plating. It was a success.
本発明によれば、ニッケルーリン合金めっきは、電解め
っき、無電解めっきいずれの方法でもよくすじ目仕上げ
の様なものは、無電解めっき法が好ましい。また析出物
のリン濃度は、５〜１５％が適当である。またスズ−コ
バルト合金めっキニついては、組成がスズ８０〜８６％
のものが最も耐食性により結果を与えることが認められ
た。According to the present invention, nickel-phosphorus alloy plating can be performed by either electrolytic plating or electroless plating, and for streak finishing, electroless plating is preferred. The appropriate phosphorus concentration of the precipitate is 5 to 15%. Regarding tin-cobalt alloy plating, the composition is 80-86% tin.
was found to give the best results in corrosion resistance.
以下、実施例に従って本発明の詳細な説明する。Hereinafter, the present invention will be explained in detail according to examples.
〈実施例−１〉
黄銅材を鍛造後表面加工して時計用ケースを作り、トリ
クレン、アルカリ脱脂更に酸洗後、下地めっきとして、
ニッケルーリン合金めっき３ミクロン施し、更にその上
にスズーコバルト合金メっき０５ミクロンを施した。こ
の下地めっきに用いためっき浴、めっき条件を下記に示
す。<Example-1> After forging a brass material, surface-processing it to make a watch case, and after degreasing with trichloride and alkali and pickling, as a base plating,
Nickel-phosphorus alloy plating was applied to 3 microns, and tin-cobalt alloy plating was further applied to 05 microns. The plating bath and plating conditions used for this base plating are shown below.
くめっき液組成〉
硫酸ニッケル ３００ ？／を塩化ニッ
ケル １！Ｍ’７４次亜リン酸ナトリ
ウム ９０１／を塩化アンモニウム
２０９／ｌ〈めつき条件〉
電流密度 ２ Ａ／ｄｍ”時 間
９分浴 温
６５℃ＰＨ１，７
〔スズ−コバルト合金めっき〕
くめっき液組成〉
塩化コバルト ４０ ？／を塩化第一ス
ズ ａＯｔ／１ピロリン酸カリ
２００９／を添加剤 適 量
くめつき条件〉
電流密度 ０．５ Ａ ／ ｄｍ２時
間 ５分浴 温
６０℃ＰＨ９
次に金ストライクを施し、更に１４カラツトのＡ ｕ
−Ａ を合金めっき３ミクロン、更にその上に２′５カ
ラツトＡ ｕ −Ｎ ｉ −Ｉ ｎ合金めっきを２ミク
ロン施した。Plating solution composition> Nickel sulfate 300? / nickel chloride 1! M'74 Sodium hypophosphite 901/ ammonium chloride
209/l <Plating conditions> Current density 2 A/dm" time
9 minute bath warm
65°C PH1.7 [Tin-cobalt alloy plating] Plating solution composition> Cobalt chloride 40 ? / stannous chloride aOt/1 potassium pyrophosphate
Appropriate amount of additive 2009/ Conditions: Current density 0.5 A/dm2
5 minute bath warm
60℃PH9 Next, apply gold strike and add 14 karat Au
-A was alloy plated to a thickness of 3 microns, and then a 2'5 carat Au-Ni-In alloy plating was applied to a thickness of 2 microns.
この様にして得られた時計ケースと、従来のめっき方法
で得られた一時計ケースにつき、人工汗浸漬試験７日間
、塩水噴霧試験５日間の耐食性試験を行った所、従来の
めっき方法で得られた時計ケースは、すじ目仕上げ部分
に点状の腐食が生じたのに対し、上記方法で得られた４
鼾ケースは、全く異常が認められなかった。Corrosion resistance tests were conducted on the watch case obtained in this way and the watch case obtained using the conventional plating method, including a 7-day artificial sweat immersion test and a 5-day salt spray test. The case obtained by the method described above had spot-like corrosion on the lined finish, whereas the case obtained by the above method had corrosion in the form of spots.
No abnormality was observed in the snoring case.
〈実施例−２，〉
洋白材を鍛造後表面加工して時計ケースを作りトリクレ
ン、アルカリ脱脂更に酸洗い後、下地めっきとして、ま
ず下記に示すめっき浴、めっき条件でニッケルーリン合
金めっきを無電解めっき法で２ミクロン施した。<Example 2,> A watch case was made by forging the surface of nickel silver material, degreasing it with alkali and pickling, and then applying nickel-phosphorus alloy plating as a base plating using the plating bath and plating conditions shown below. A thickness of 2 microns was applied by electrolytic plating.
くめっき液組成〉
塩化ニッケル ５ｏｔ７を次亜リン酸
ナトリウム １０ｆ／ｌクエン酸ナトリウム
１０ｆ／ｌ〈めっき条件〉
浴 温 ９０℃時 間
１０分ＰＨ４
更にその上に下記に示すめっき浴、めっき条件でスズ−
コバルト合金めっきを０．３ミクロン施した。Plating solution composition> Nickel chloride 5ot7, sodium hypophosphite 10f/l Sodium citrate 10f/l <Plating conditions> Bath temperature 90℃ Time
10 minutes at pH 4. On top of that, tin was applied in the plating bath and plating conditions shown below.
Cobalt alloy plating was applied to a thickness of 0.3 microns.
〈めっき液組成〉
塩化コバルト ３５０ｆ／１７ツ化第−
スズ ５０ ？／を酸性７ツ化アンモン
２０９／を添加剤
適 量くめつき条件〉
電流密度 １．Ａ／ｄｍ’
時間 ２分
浴 温 ６５℃ＰＨ２
次＆、＝金ストライクを施し、更に１６カラツトＡａ
−Ｏｕ合金めっき３ミクロン、また更に２３カラノドＡ
ｕ −Ｎ １−Ｉｎ合金めっき２ミクロンを施した。<Plating solution composition> Cobalt chloride 350f/17th chloride
Tin 50? /Acidic ammonium heptide 209/Additive
Conditions for applying appropriate amount> Current density 1. A/dm' Time: 2 minutes bath Temperature: 65℃PH2 Next &, = gold strike, and 16 carat Aa
-Ou alloy plating 3 microns, or even 23 Karanod A
A 2 micron u-N 1-In alloy plating was applied.
この様にして得られた時計ケースを実施例−１と同様の
耐食試験を行なった所、腐食、変色などの異常は全く認
められなかった。When the watch case thus obtained was subjected to the same corrosion resistance test as in Example 1, no abnormalities such as corrosion or discoloration were observed.
以上の実施例では、本発明の一部について述べたもので
あり、下地めっきの厚さについては、更に増減が可能で
ある。スス−コバルト合金めっきの厚さは、０２ミクロ
ン以上あればよい。The above embodiments describe only a part of the present invention, and the thickness of the base plating can be further increased or decreased. The thickness of the soot-cobalt alloy plating may be 0.2 microns or more.
以−トの如く本発明によれば、従来の金めりきでは得ら
れなかった高耐食性の時計用外装部品を得ることが可能
となった。As described above, according to the present invention, it has become possible to obtain a highly corrosion-resistant watch exterior part that could not be obtained with conventional gold plating.
以 上 出願人 株式会社第二精工舎 代理人 弁理士 最上 務that's all Applicant: Daini Seikosha Co., Ltd. Agent Patent Attorney Mogami
Claims (1)
更にその上にスズ−コノくルト合金めっき層を形成させ
た後、金めつきをしたことを特徴とする時計用外装部品
。Nickel-phosphorus alloy plating is applied as the base plating,
An exterior part for a watch, characterized in that a tin-konolt alloy plating layer is further formed thereon, and then gold plating is applied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16657781A JPS5867890A (en) | 1981-10-19 | 1981-10-19 | Outer parts for watch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16657781A JPS5867890A (en) | 1981-10-19 | 1981-10-19 | Outer parts for watch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5867890A true JPS5867890A (en) | 1983-04-22 |
| JPS648719B2 JPS648719B2 (en) | 1989-02-15 |
Family
ID=15833842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16657781A Granted JPS5867890A (en) | 1981-10-19 | 1981-10-19 | Outer parts for watch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5867890A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100854505B1 (en) | 2007-02-23 | 2008-08-26 | (주)해빛정보 | Plating layer using w-co and sn-co and method for plating the same |
| US7644907B2 (en) | 2006-12-28 | 2010-01-12 | Schlumberger Technology Corporation | Drum for a well access line |
| US20170146954A1 (en) * | 2015-11-19 | 2017-05-25 | Nivarox-Far S.A. | Timepiece component |
-
1981
- 1981-10-19 JP JP16657781A patent/JPS5867890A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7644907B2 (en) | 2006-12-28 | 2010-01-12 | Schlumberger Technology Corporation | Drum for a well access line |
| KR100854505B1 (en) | 2007-02-23 | 2008-08-26 | (주)해빛정보 | Plating layer using w-co and sn-co and method for plating the same |
| US20170146954A1 (en) * | 2015-11-19 | 2017-05-25 | Nivarox-Far S.A. | Timepiece component |
| JP2017096925A (en) * | 2015-11-19 | 2017-06-01 | ニヴァロックス−ファー ソシエテ アノニム | Component for timepiece |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS648719B2 (en) | 1989-02-15 |
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