JPH0725199A - Noble metal decorating method for sapphire - Google Patents
Noble metal decorating method for sapphireInfo
- Publication number
- JPH0725199A JPH0725199A JP19554293A JP19554293A JPH0725199A JP H0725199 A JPH0725199 A JP H0725199A JP 19554293 A JP19554293 A JP 19554293A JP 19554293 A JP19554293 A JP 19554293A JP H0725199 A JPH0725199 A JP H0725199A
- Authority
- JP
- Japan
- Prior art keywords
- groove
- sapphire
- decorative
- metallized
- protruding
- 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
Landscapes
- Physical Or Chemical Processes And Apparatus (AREA)
- Physical Vapour Deposition (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は時計用外装部品に関する
ものである。さらに詳しくは時計用サファイヤカバーガ
ラス及び装飾用セラミックス材への貴金属加飾方法に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a timepiece exterior component. More particularly, it relates to a method for decorating a sapphire cover glass for a watch and a ceramic material for decoration with a noble metal.
【０００２】[0002]
【従来の技術及び課題】従来、時計用サファイヤカバー
ガラスを基体とするこの種の加飾技術としては、貴金属
を加工した装飾部品またはＢＳ材に金メッキを施すなど
したリング形状の装飾部品をカバーガラス表面に直接、
有機系接着剤を用いて接着固定する方法がとられてい
た。しかし有機系接着では接着固定後に発汗、熱、紫外
線等の外部環境変化の作用を受け易く、経時変化による
加飾部品脱落という重大欠陥につながる恐れがあり、耐
久性、信頼性という点で大きな問題となる。2. Description of the Related Art Conventionally, as a decoration technique of this kind using a sapphire cover glass for a watch as a base, a decorative component made of a precious metal or a ring-shaped decorative component made by plating a BS material with a cover glass is used. Directly on the surface
A method of adhering and fixing using an organic adhesive has been adopted. However, organic adhesives are easily affected by external environmental changes such as sweating, heat, and ultraviolet rays after adhesive fixation, which may lead to a serious defect such as the removal of decorative parts due to aging, which is a major problem in terms of durability and reliability. Becomes
【０００３】また一部にはカバーガラス表面に溝加工及
びメタライズ処理を施し、低温ロー材を用いて加飾部材
である貴金属とロー付固定する技術も用いられてはいた
が、処理工程において、熱膨張率の差による組合わせ可
能な材質、固定する加飾部品の形状、接合面積、ロー付
け補助部品の寸法設定等に制限があり、これら加飾部品
の精密な成形加工負荷及びデザイン的な形状自由度が少
ない問題の他に、構造的なサファイヤ基体の割れ発生問
題が最終歩留りに大きく影響して、コスト高の大きな要
因になっていた。In addition, a technique has been used in which the surface of the cover glass is grooved and metallized, and a low-temperature brazing material is used to fix it to the precious metal, which is a decorative member, by brazing. There are restrictions on the materials that can be combined depending on the difference in the coefficient of thermal expansion, the shape of the decorative parts to be fixed, the joint area, the dimension settings of the brazing auxiliary parts, etc. In addition to the problem that the degree of freedom in shape is low, the problem of structural cracking of the sapphire substrate greatly affects the final yield, which is a major factor in the high cost.
【０００４】この為、接着固定またはロー付け接合技術
を使わずに、サファイヤカバーガラス及び装飾用セラミ
ックス等の外装表面に直接、貴金属部材を自由な形状
で、かつ簡単に加飾する技術の開発が望まれていた。For this reason, the development of a technique for directly decorating a noble metal member in a free shape and easily on the exterior surface of a sapphire cover glass, decorative ceramics or the like without using an adhesive fixing or brazing joining technique has been developed. Was wanted.
【０００５】[0005]
【課題を解決するための手段】本発明は従来技術の問題
点を解決する為、サファイヤまたはセラミックス基体表
面上に超音波加工法等で所望する加飾パターン形状の溝
加工処理を行い、その溝部にスパッタリング等のメタラ
イズ方法を用いて、ロー付け処理する高温域でも劣化せ
ず、かつサファイヤ及びセラミックスとの密着性の良い
メタライズ層を形成し、加熱して溶融した低融点金合金
を溝部に沿って流し込んで加飾パターン通りに肉盛りす
る。In order to solve the problems of the prior art, the present invention performs groove processing of a desired decorative pattern shape on the surface of a sapphire or ceramic substrate by an ultrasonic processing method or the like, and the groove portion thereof is formed. Using a metallization method such as sputtering, a metallized layer that does not deteriorate even in the high temperature range where brazing is performed and that has good adhesion to sapphire and ceramics is formed. Pour it in and pour it up according to the decorative pattern.
【０００６】溝部に盛り込んだ低融点金合金は、加熱に
よって溶融した際に表面濡れ性の悪い溝部以外の基材表
面上にはのらず、ヌレ性の良い溝内部のメタライズ面に
集中して集まり、従って溶融した金合金は表面張力によ
り盛り上がった状態になり、溝パターン通りの加飾部材
となって固まる。さらに装飾性向上のため、光沢や色調
調整が必要な場合はAuの厚メッキを施した後、バフ研磨
等の最終仕上げを行うことにより、基材表面を傷つける
ことなく溝パターン通りの光沢のある立体的な貴金属加
飾部品が得られる。The low melting point gold alloy contained in the groove does not rest on the surface of the base material other than the groove having poor surface wettability when melted by heating, and concentrates on the metallized surface inside the groove having good wettability. The gold alloy thus collected and thus melted is in a raised state due to the surface tension and hardens as a decorative member according to the groove pattern. If gloss or color adjustment is required to improve decorativeness, thick plating of Au is applied, and then final finishing such as buffing is performed to create a gloss that matches the groove pattern without damaging the substrate surface. A three-dimensional precious metal decorative component can be obtained.
【０００７】[0007]
【実施例１】図１は本発明の実施例を示す各工程の側断
面図である。サファイヤ基体１表面上に超音波加工によ
り0.5mmの溝２を形成した後(a)、溝内面にMo-Mnペース
ト状インクを用いてMo-Mn層３を焼き付け処理により形
成し、さらに加飾する金合金との密着力を向上させる為
にNi-Auメッキ層４を施して、約0.1mm程度のメタライズ
層を形成する(b)。次に溝内面以外のサファイヤ上面の
不要部分を同一面上に研削により除去し、表面を研磨し
た(c)。Embodiment 1 FIG. 1 is a side sectional view of each step showing an embodiment of the present invention. After forming a groove 2 of 0.5 mm on the surface of the sapphire substrate 1 by ultrasonic processing (a), a Mo-Mn layer 3 is formed on the inner surface of the groove by using a Mo-Mn paste-like ink by baking treatment, and further decorated. Ni-Au plating layer 4 is applied to improve the adhesion with the gold alloy, and a metallized layer of about 0.1 mm is formed (b). Next, unnecessary portions of the sapphire upper surface other than the groove inner surface were removed by grinding on the same surface, and the surface was polished (c).
【０００８】次にメタライズした溝内部に低融点のペー
スト状の金−スズ(Au80/Sn20)はんだ材５を充填し、電
熱ヒーターを用いて大気中で約350℃に加熱して金−ス
ズはんだ材５を溶融した。溶融した金合金は表面張力の
作用により、サファイヤ基体表面に対し凸状の形状に盛
り上がり、溝加工したパターン形状に合わせた立体的な
加飾が得られた(d)。Next, a low melting point paste-like gold-tin (Au80 / Sn20) solder material 5 is filled in the inside of the metallized groove and heated to about 350 ° C. in the atmosphere using an electric heater to heat the gold-tin solder. Material 5 was melted. Due to the effect of surface tension, the molten gold alloy bulged into a convex shape on the surface of the sapphire substrate, and three-dimensional decoration according to the grooved pattern was obtained (d).
【０００９】さらに、得られた凸状金合金表面をメッキ
下地処理としてバフ研磨処理を行い、表面の面粗度を細
かくして光沢が得られるまで念入りに研磨し、無電解18
Kメッキ層６を厚さ6μm程度付けた後、サファイヤ基体
とメッキ部稜線のキワを仕上げる為に再度最終のバフ研
磨をした(e)。これらの加工処理により透明なサファイ
ヤ基体表面上に立体的な凸状模様をもたせることがで
き、光沢のある貴金属特有の金色を有し、かつ加飾部が
18K相当以上の金合金で満たされた立体感のあるサファ
イヤ部品を得ることができた。Further, the obtained convex gold alloy surface is subjected to buffing treatment as a plating undercoat treatment, and the surface roughness of the surface is made finer and polished carefully until a gloss is obtained.
After the K plating layer 6 was applied to a thickness of about 6 μm, the final buffing was performed again to finish the sapphire substrate and the ridge line of the plating portion (e). By these processing treatments, it is possible to give a three-dimensional convex pattern on the surface of the transparent sapphire substrate, which has a golden color unique to glossy precious metals, and the decorative portion is
We were able to obtain a sapphire part with a three-dimensional effect filled with a gold alloy of 18K or higher.
【００１０】[0010]
【実施例２】図２は本発明の他の一例の上面図であり、
時計用サファイヤカバーガラスの上面部に時字模様の超
音波溝加工処理を施した後、前記実施例１同様の加工工
程処理を行った。図において斜線部７が加飾部分を示し
ており、通常は透明なサファイヤカバーガラスを通して
見える平面的な文字板の時字模様が、サファイヤ上面に
浮き出る感じで見え、しかも立体的に貴金属特有の金色
光沢を醸し出すことができ、高級感のある宝飾時計用サ
ファイヤカバーガラス部品として質感、仕上り共に十分
なものが得られた。Second Embodiment FIG. 2 is a top view of another example of the present invention.
The upper surface of the sapphire cover glass for a watch was subjected to ultrasonic groove processing in a time-character pattern, and then the same processing steps as in Example 1 were performed. In the figure, the shaded area 7 indicates the decorative part, and the time-like pattern of the flat dial that is normally seen through the transparent sapphire cover glass appears as if it were raised above the sapphire surface, and the three-dimensional gold color peculiar to precious metals is also present. As a sapphire cover glass part for jewelry watches, which is capable of producing a luster and has a high-class feeling, a product with a satisfactory texture and finish was obtained.
【００１１】[0011]
【実施例３】同様にカフス、タイピン等に用いられる装
飾用黒色ジルコニアセラミックスに、家紋模様を実施例
１同様の加工工程に従って処理を行った。完成したカフ
ス、タイピンはジルコニアセラミックスの黒色と加飾部
分の金色とのツートーンカラーで構成され、気品のある
立体的な装飾部品となり、質感、仕上がり共に高級感あ
ふれるものであった。Example 3 Similarly, decorative black zirconia ceramics used for cuffs, tie pins and the like were treated with a family crest pattern in the same process as in Example 1. The completed cuffs and tie pins consisted of two-tone colors, black of zirconia ceramics and gold of the decorative part, and became a three-dimensional decorative component with dignity, and the texture and finish were full of luxury.
【００１２】[0012]
【発明の効果】以上詳しく説明したように、本発明はサ
ファイヤまたはセラミックス基体上に超音波加工法等で
加飾パターン形状の溝加工を行い、その溝部にスパッ
タ、焼き付け等のメタライズ方法を用いて、高温域でも
劣化せず、かつ密着性の良いメタライズ層を形成し、加
熱して溶融した低融点金合金を溝部に流し込んで、表面
張力によって盛り上がった状態で硬化させることにより
溝パターン通りの部分加飾形状となる。さらに光沢及び
色調調整のためAu等の厚メッキを施し、バフ研磨の最終
仕上げを行うことにより、立体感のあるサファイヤ及び
セラミックス等の貴金属加飾部品が得られる。As described above in detail, according to the present invention, a sapphire or ceramic substrate is subjected to a groove processing of a decorative pattern shape by an ultrasonic processing method or the like, and the groove portion is subjected to a metallizing method such as sputtering or baking. By forming a metallized layer that does not deteriorate even in a high temperature range and has good adhesion, and pouring a low melting point gold alloy that has been heated and melted into the groove, and hardening it in a state where it rises due to surface tension, the part that follows the groove pattern It becomes a decorative shape. Further, thick plating of Au or the like is applied for gloss and color tone adjustment, and buffing is performed for final finishing to obtain a sapphire and a precious metal decorative component such as ceramics having a three-dimensional effect.
【００１３】この発明により、従来技術である接着剤ま
たはロー付け接合を用いた固定方法が不要となり、特に
接合の際、セラミックス材と貴金属とのロー付け工程に
おいて問題であった熱膨張率の差を緩和させることがで
き、これによりサファイヤ基体の割れ発生がなく、構造
上においても加飾部品の固定強度を十分に保つことがで
きた。According to the present invention, the conventional fixing method using an adhesive or brazing is unnecessary, and the difference in the coefficient of thermal expansion, which is a problem in the brazing process of the ceramic material and the noble metal, particularly at the time of joining. The sapphire substrate did not crack, and the fixing strength of the decorative component could be sufficiently maintained in terms of structure.
【００１４】また加飾部品の形状、接合面積、ロー付け
補助部品の寸法設定に制限が無くなり、さらに従来技術
におけるこれら加飾部品の精密な成形加工負荷が全く必
要ないので、時計部品の時字模様等の複雑なパターンで
も容易に形成することができ、デザイン的な形状自由度
が飛躍的に増大した。また、この方法により従来ロー付
け工程で必要であった加飾部材のロー付けセッティング
治具を使用せずに熱処理を行えるため、作業工程の簡略
化ができ量産性向上及びコスト面での削減ができた。Further, since there is no restriction on the shape of the decorative parts, the joint area, and the dimension setting of the brazing auxiliary parts, and further, the precise molding load of these decorative parts in the prior art is not required at all, the time character of the timepiece parts Even complicated patterns such as patterns can be easily formed, and the degree of freedom in design is dramatically increased. Also, with this method, heat treatment can be performed without using the brazing setting jig for the decorative member, which was required in the conventional brazing process, so the work process can be simplified, mass productivity can be improved, and cost can be reduced. did it.
【図１】本発明における各加工工程の側断面図。FIG. 1 is a side sectional view of each processing step in the present invention.
【図２】本発明の時計用サファイヤカバーガラスの上面
時字模様を示すパターン図。FIG. 2 is a pattern diagram showing an upper hour-shaped pattern of the sapphire cover glass for a timepiece of the present invention.
１ サファイヤ基体 ２ 溝 ３ Mo-Mn層 ４ Ni-Auメッキ層 ５ 金−スズはんだ材 ６ 18Kメッキ層 ７ 加飾部分 1 Sapphire substrate 2 Groove 3 Mo-Mn layer 4 Ni-Au plating layer 5 Gold-tin solder material 6 18K plating layer 7 Decorative part
フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ２３Ｃ 14/58 8520−4Ｋ (72)発明者 矢口 洋一 東京都足立区新田３丁目８番22号 並木精 密宝石株式会社社内Continuation of the front page (51) Int.Cl. 6 Identification number Reference number within the agency FI Technical indication location C23C 14/58 8520-4K (72) Inventor Yoichi Yaguchi 3-8-22 Nitta, Adachi-ku, Tokyo Namiki Seiki Mitsuge Co., Ltd.
Claims (3)
パターン形状の溝加工を施し、溝内部内面にMo-Mn及びN
i-Auのメタライズ層を形成した後、溝凹部に低融点の金
合金を溶かし込み、溝内部メタライズ面と溶着させなが
ら凸状に肉盛りし、溝のパターンと同一の立体的な部分
加飾形状を得ることを特徴としたサファイヤへの貴金属
加飾方法。1. A sapphire substrate is subjected to a groove processing of a decorative pattern by an ultrasonic method or the like, and Mo-Mn and N are formed on the inner surface of the groove.
After forming the i-Au metallization layer, a low melting point gold alloy is melted in the groove recesses, and the metallization surface inside the groove is welded to form a convex buildup, and the same three-dimensional partial decoration as the groove pattern is applied. A method for decorating a sapphire with a precious metal, which is characterized by obtaining a shape.
項１記載の貴金属加飾方法。2. The precious metal decorating method according to claim 1, wherein the base is made of decorative ceramics.
系低融点金合金であることを特徴とする請求項１記載の
貴金属加飾方法。3. The decorative metal melted in the groove of the base is Au-Sn.
The precious metal decoration method according to claim 1, which is a low melting point gold alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19554293A JPH0725199A (en) | 1993-07-12 | 1993-07-12 | Noble metal decorating method for sapphire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19554293A JPH0725199A (en) | 1993-07-12 | 1993-07-12 | Noble metal decorating method for sapphire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0725199A true JPH0725199A (en) | 1995-01-27 |
Family
ID=16342834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19554293A Pending JPH0725199A (en) | 1993-07-12 | 1993-07-12 | Noble metal decorating method for sapphire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0725199A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005181340A (en) * | 2003-12-23 | 2005-07-07 | Rolex Sa | Ceramic member for timepiece case, and method for manufacturing the same |
| JP2005181341A (en) * | 2003-12-23 | 2005-07-07 | Rolex Sa | Method for manufacturing ceramic member of timepiece case, and member obtained by the same |
| JP2013010023A (en) * | 2007-07-17 | 2013-01-17 | Poly Medicure Ltd | Needle safety device |
| CN104589884A (en) * | 2015-01-03 | 2015-05-06 | 李�浩 | Method for combining, splicing and molding hsiuyen jade |
-
1993
- 1993-07-12 JP JP19554293A patent/JPH0725199A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005181340A (en) * | 2003-12-23 | 2005-07-07 | Rolex Sa | Ceramic member for timepiece case, and method for manufacturing the same |
| JP2005181341A (en) * | 2003-12-23 | 2005-07-07 | Rolex Sa | Method for manufacturing ceramic member of timepiece case, and member obtained by the same |
| JP2011191321A (en) * | 2003-12-23 | 2011-09-29 | Rolex Sa | Ceramic element for watch case, and method of manufacturing the same |
| EP1548525B1 (en) † | 2003-12-23 | 2013-08-14 | Rolex Sa | Ceramic element for watch case and method of manufacturing the same |
| EP1548525B2 (en) † | 2003-12-23 | 2017-08-16 | Rolex Sa | Ceramic element for watch case and method of manufacturing the same |
| JP2013010023A (en) * | 2007-07-17 | 2013-01-17 | Poly Medicure Ltd | Needle safety device |
| CN104589884A (en) * | 2015-01-03 | 2015-05-06 | 李�浩 | Method for combining, splicing and molding hsiuyen jade |
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