JPS62238067A - Manufacture of outer fitting part for watch - Google Patents
Manufacture of outer fitting part for watchInfo
- Publication number
- JPS62238067A JPS62238067A JP8071986A JP8071986A JPS62238067A JP S62238067 A JPS62238067 A JP S62238067A JP 8071986 A JP8071986 A JP 8071986A JP 8071986 A JP8071986 A JP 8071986A JP S62238067 A JPS62238067 A JP S62238067A
- Authority
- JP
- Japan
- Prior art keywords
- gold
- titanium
- alloy
- metal
- plated
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract 6
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000010931 gold Substances 0.000 claims abstract description 29
- 229910052737 gold Inorganic materials 0.000 claims abstract description 28
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000010936 titanium Substances 0.000 claims abstract description 26
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 24
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000005219 brazing Methods 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 9
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 9
- 229910001020 Au alloy Inorganic materials 0.000 claims abstract description 7
- 239000003353 gold alloy Substances 0.000 claims abstract description 7
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 5
- 239000000956 alloy Substances 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 239000010949 copper Substances 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 229910052709 silver Inorganic materials 0.000 claims abstract description 4
- 239000004332 silver Substances 0.000 claims abstract description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims abstract 4
- 229910001069 Ti alloy Inorganic materials 0.000 claims abstract 4
- 229910001258 titanium gold Inorganic materials 0.000 claims abstract 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract 2
- 239000011261 inert gas Substances 0.000 claims abstract 2
- 229910052763 palladium Inorganic materials 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims 1
- 239000011651 chromium Substances 0.000 claims 1
- 238000007747 plating Methods 0.000 abstract description 11
- 230000007797 corrosion Effects 0.000 abstract description 9
- 238000005260 corrosion Methods 0.000 abstract description 9
- 239000000945 filler Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000005275 alloying Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 150000002343 gold Chemical class 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000010587 phase diagram Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Physical Vapour Deposition (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明はチタンと金の接合部を有する時計製造分野で
利用される。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention is utilized in the field of watchmaking with titanium and gold joints.
チタンと金をろうづけする場合、高温でチタンが反応し
やすく、金と短時間に合金化し、接合部の範囲を越えて
、周辺部まで溶融させるいわゆる喰われを起しやすい。When brazing titanium and gold, titanium tends to react at high temperatures, alloying with gold in a short time and melting beyond the joint area to the periphery, which is likely to occur.
これは、装飾品としては致命的である。この喰われはチ
タンと金との間で顕著であるため、この両者の間に別金
属のめっき層を入れることでその解決をはかった。This is fatal as an ornament. Since this erosion is most noticeable between titanium and gold, we attempted to solve this problem by inserting a plating layer of another metal between the two.
チタンと金の接合は、主に装飾用であり、時計用として
は、機械的結合や象嵌が行われている。Titanium and gold are mainly bonded for decorative purposes, and for watches, mechanical bonding and inlays are used.
しかしこれらの方法は、形状、デザインに制限を与える
ため、ろう付は技術の開発が望まれていた。However, since these methods impose restrictions on shape and design, it has been desired to develop brazing technology.
［発明が解決しようとする問題点〕
チタンと金は、その状態図によると、その合金成分比に
応じて複数の金属間化合物を形成し、そのため一般には
脆くなるとされている。[Problems to be Solved by the Invention] According to their phase diagram, titanium and gold form a plurality of intermetallic compounds depending on their alloy component ratios, which generally makes them brittle.
しかし時計外装用としては、その使用条件が、機械構造
要素はど厳しくなく、殆どの場合、強度上問題はない。However, for use on the exterior of a watch, the usage conditions are not very strict regarding mechanical structural elements, and in most cases there is no problem in terms of strength.
他方、時計外装上問題になるのは、美観であり、チタン
と金が高温で接触していると、短時間でも溶融しはじめ
て正しい寸法形状を保たず溶融による陥没、すなわち喰
われが起きる。On the other hand, aesthetics are a problem when it comes to watch exteriors, and when titanium and gold come into contact at high temperatures, they begin to melt even for a short period of time, and the correct dimensions and shape are not maintained, resulting in caving in, or eating away, due to the melting.
時計外装に使われるろう材は、耐食性の点から銀ろう、
銅ろうなどは殆ど使われず、金ろうにほぼ限定されてい
る。この金ろう （正しくは金合金ろう、以下同じ）が
チタンと金の両者を濡らし、接合させるのだが、まずチ
タンと金ろうが合金化し、次にその合金が金を溶融させ
るので、このいずれの段階かを遅らせることで、チタン
と金の反応すなわち喰われを防止することが可能になる
。The brazing material used for the watch exterior is silver wax, due to its corrosion resistance.
Copper wax is rarely used, and it is almost limited to gold wax. This gold solder (correctly known as gold alloy solder, hereinafter the same) wets and joins both titanium and gold, but first the titanium and gold solder alloy, and then that alloy melts the gold. By delaying this step, it is possible to prevent the titanium and gold from reacting, or being eaten away.
〔問題点を解決するための手段〕
チタンと金の溶融すなわち喰われを防止するためには、
両者がまじり合わないように障壁を設ければよい。しか
し時計外装の場合美観上と耐食性の上からあまり厚い障
壁を設けるわけにはいかない、そのためできる限り薄い
めっき層で、その効果を発揮させる方法が重要である。[Means to solve the problem] In order to prevent titanium and gold from melting, that is, being eaten away,
A barrier should be set up to prevent the two from mixing. However, in the case of watch exteriors, it is not possible to provide a barrier that is too thick for reasons of aesthetics and corrosion resistance, so it is important to find a way to make the plating layer as thin as possible to achieve its effect.
以下に実施例を述べる。Examples will be described below.
純チタンで時計用をつくり、別に１８に金で４本のかん
足をつくり、これらをつき合わせてろう付けして完成側
とする。A clock was made from pure titanium, and four 18-inch gold pins were made separately, and these were butted together and brazed to form the completed side.
まず金に４μｍのニッケルめっきを施し、めっきを施し
ていないチタンとの間に置きろうし、真空中１ ＣＩ’
Ｔ、、、の真空度、９１０℃×１５分保持しそのあとＡ
ｒガスを注入して、急冷した。First, we plated the gold with 4 μm of nickel, placed it between the unplated titanium, and plated it with 1 CI' in a vacuum.
The degree of vacuum at T is maintained at 910℃ for 15 minutes, and then A
R gas was injected and the mixture was rapidly cooled.
真空炉から取出した側はニッケルめワき剥離液に浸漬し
て、不必要なニッケル層を除去して、金の地肌を露出さ
せた。その外観は、金とチタンのいずれにも喰われはな
く、時計外装としての十分な装飾性を存し、しかもニッ
ケルめっき層は、肉視ではその存在が識別できなかった
。これは、ろう付は温度に保持されたためニッケルがチ
タンと金の両方に拡散、合金化し境界が不明確になった
ためである。また同じ理由で耐食性の劣るニッケルめっ
きをそう人したにもかかわらず、所定の人工汗試験、塩
水噴ｍ試験にも合格した。The side taken out from the vacuum furnace was immersed in nickel plating stripping solution to remove the unnecessary nickel layer and expose the gold surface. Its appearance was unaffected by either gold or titanium, and was sufficiently decorative to be used as a watch exterior.Moreover, the presence of the nickel plating layer could not be discerned with the naked eye. This is because the brazing temperature was maintained so that the nickel diffused and alloyed with both the titanium and the gold, making the boundaries unclear. Furthermore, despite using nickel plating, which has poor corrosion resistance, for the same reason, it passed the prescribed artificial sweat test and salt water spray m test.
上記実施例のほかに、喰われをなくするう付は方法とし
て、できるだけ低温でしかも短時間でろう付けをするこ
とは言うまでもない、そのため、真空炉やアルゴン炉を
使ったいわゆる炉中ろう付けを使わず、高周波加熱、抵
抗加熱などのろう付けも有効であるが、複雑形状品のろ
う付けは局部的に過熱を生じ、短時間でも喰われを生ず
るので注意を要する。In addition to the above-mentioned embodiments, it goes without saying that brazing at the lowest possible temperature and in the shortest possible time is the best way to avoid corrosion. Brazing using high-frequency heating, resistance heating, etc. is also effective, but care must be taken when brazing products with complex shapes, as locally overheating can occur, which can cause damage even in a short period of time.
まためっきされる金属は、ニッケル以外にも種々の金属
が可能で存り、特にそれ自体あまり耐食性の良くない銅
、銀もめっき層が薄く、しかも前述のように金やチタン
と合金化するため使用可能になった。In addition, various metals other than nickel can be used for plating, especially copper and silver, which themselves do not have very good corrosion resistance. Now available.
なお、めっきの方法としては、湿式めっきはもとより、
気相めっきでもよく、その効果は十分であった・
〔発明の効果〕
以上に述べたように、本発明によれば、チタンと金をろ
う付けし、美観上も耐食上もすぐれた時計外装を提供す
ることになった。特に、従来はチタンと金が高温で短時
間に溶融し合い、溶融してはならない部分まで溶融させ
美観を害していたが、チタンと金との間に第３金属のめ
っき層をそう人することで、それを完全に阻止できた。In addition, plating methods include wet plating as well as
Vapor phase plating may also be used, and the effect was sufficient. [Effects of the Invention] As described above, according to the present invention, titanium and gold are brazed to create a watch exterior that is both aesthetically pleasing and corrosion-resistant. was decided to provide. In particular, in the past, titanium and gold melted together in a short time at high temperatures, causing parts that should not be melted to melt, damaging the aesthetics. This completely prevented it.
以上that's all
Claims (4)
チタンまたはチタン合金の表面に金またはチタン以外の
金属をめっきしてチタンまたはチタン合金と金または金
合金をろう付けすることを特徴とする携帯時計用外装部
品の製造方法。(1) For mobile watches characterized in that the surface of gold or gold alloy or the surface of titanium or titanium alloy is plated with gold or a metal other than titanium, and titanium or titanium alloy and gold or gold alloy are brazed together. Method of manufacturing exterior parts.
求の範囲第１項記載の携帯時計用外装部品の製造方法。(2) A method for manufacturing an exterior part for a portable watch as set forth in claim 1, characterized in that a gold alloy is used as the brazing material.
、クロム、銀またはそれらの合金の一層または二層以上
を重ねたことを特徴とする特許請求の範囲第１項記載の
携帯時計用外装部品の製造方法。(3) The exterior component for a portable watch as set forth in claim 1, wherein the metal to be plated is one or more layers of nickel, copper, palladium, chromium, silver, or an alloy thereof. manufacturing method.
特徴とする特許請求の範囲第１項記載の携帯時計用外装
部品の製造方法。(4) The method for manufacturing an exterior part for a portable watch according to claim 1, wherein the heating atmosphere is an inert gas or vacuum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8071986A JPS62238067A (en) | 1986-04-08 | 1986-04-08 | Manufacture of outer fitting part for watch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8071986A JPS62238067A (en) | 1986-04-08 | 1986-04-08 | Manufacture of outer fitting part for watch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62238067A true JPS62238067A (en) | 1987-10-19 |
Family
ID=13726160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8071986A Pending JPS62238067A (en) | 1986-04-08 | 1986-04-08 | Manufacture of outer fitting part for watch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62238067A (en) |
-
1986
- 1986-04-08 JP JP8071986A patent/JPS62238067A/en active Pending
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