JPH0273986A - Electrode ring for electrocasting - Google Patents
Electrode ring for electrocastingInfo
- Publication number
- JPH0273986A JPH0273986A JP22561788A JP22561788A JPH0273986A JP H0273986 A JPH0273986 A JP H0273986A JP 22561788 A JP22561788 A JP 22561788A JP 22561788 A JP22561788 A JP 22561788A JP H0273986 A JPH0273986 A JP H0273986A
- Authority
- JP
- Japan
- Prior art keywords
- film
- ring
- electrocast
- electrocasting
- electrode
- 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
- 238000005323 electroforming Methods 0.000 claims description 13
- 230000007547 defect Effects 0.000 abstract description 3
- 239000011248 coating agent Substances 0.000 abstract 3
- 238000000576 coating method Methods 0.000 abstract 3
- 230000008021 deposition Effects 0.000 abstract 1
- 239000012528 membrane Substances 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- KERTUBUCQCSNJU-UHFFFAOYSA-L nickel(2+);disulfamate Chemical compound [Ni+2].NS([O-])(=O)=O.NS([O-])(=O)=O KERTUBUCQCSNJU-UHFFFAOYSA-L 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、電鋳用電極リング、特に、光デイスク用スタ
ンパの作製に用いられる電鋳用電極リングに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electrode ring for electroforming, and particularly to an electrode ring for electroforming used in producing a stamper for an optical disk.
従来の電鋳用電極リングは第２図に示す断面図のように
、陰極７に取付けられている薄いシート状の電極リング
４′を電極膜１に接触させた上で電鋳を行ない電鋳膜２
を形成していた。As shown in the cross-sectional view shown in Figure 2, the conventional electrode ring for electroforming is performed by bringing a thin sheet-shaped electrode ring 4' attached to the cathode 7 into contact with the electrode film 1, and then performing electroforming. membrane 2
was forming.
また、材質としては、黄銅にニッケルメッキを施したも
のか、またはニッケルのみを用いていた。The material used was either nickel-plated brass or only nickel.
しかしながら、このような上述した従来の電鋳用電極リ
ングは、シート状をなし電鋳膜によって完全に被われ、
電鋳膜に固定され、電鋳により形成されたスタンパを成
形のための母型とするためには、電鋳膜の陽極に対向す
る面を研磨して平坦化する必要があるが、電鋳膜の陽極
の対向面には凸状の電極リングに対応した段差があるた
め、研磨の際にはシート状の電極リングを打抜いて取り
除く必要があるため、打抜きのため、溝が形成された面
の保護が必要となり、また、打抜き時に欠陥が発生する
という欠点があった。However, the above-mentioned conventional electrode ring for electroforming is in the form of a sheet and is completely covered with an electroformed film.
In order to use the stamper fixed to the electroformed film and formed by electroforming as a mold for molding, it is necessary to polish and flatten the surface of the electroformed film facing the anode. Since there is a step on the surface facing the anode of the membrane that corresponds to the convex electrode ring, the sheet-shaped electrode ring must be punched out and removed during polishing, so a groove was formed for punching. There were disadvantages in that the surface needed to be protected and defects occurred during punching.
本発明の電鋳用電極リングは、電鋳により形成される電
鋳膜の厚さよりも大きな高さを有し、かつ、不動態被膜
を有して構成される。The electroforming electrode ring of the present invention has a height greater than the thickness of an electroformed film formed by electroforming, and is configured to include a passive film.
次に、本発明の実施例について、図面を参照して詳細に
説明する。Next, embodiments of the present invention will be described in detail with reference to the drawings.
第１図は本発明の一実施例を示す断面図である。FIG. 1 is a sectional view showing an embodiment of the present invention.
第１図に示す電鋳用電極リングは、電鋳にょつ扱
鋳後、不動態グ膜がついているため電極リングが簡単に
取り外しができるので、打抜きにより取り除く必要がな
くなり、工程が簡単になり、欠陥の発生を防止できる上
、電極リングを再使用できるという効果がある。The electrode ring for electroforming shown in Figure 1 can be easily removed after electroforming because it has a passive film on it, so there is no need to remove it by punching, which simplifies the process. This has the effect of not only preventing the occurrence of defects but also allowing the electrode ring to be reused.
用い、電極膜ｌと接触する面のみ活性化を行ない不動態
被膜５を除去する。The passive film 5 is removed by activating only the surface in contact with the electrode film 1.
次に、よく知られているスルファミン酸ニッケNext, the well-known nickel sulfamate
第１図は本発明の一実施例を示す断面図、第２図は従来
の一例を示す断面図である。
膜５により電鋳膜２が付着することがなく、かつ、電鋳
膜２の厚さよりも大きな高さを有しているので、電鋳膜
２に埋まることがないため簡単に取り外せる。
〔発明の効果〕
本発明の電鋳用電極リングは、電鋳により形成６・・・
・・・キャップ、７・・・・・・陰極、訃・・・・・陽
極。FIG. 1 is a sectional view showing an embodiment of the present invention, and FIG. 2 is a sectional view showing an example of the conventional technology. The membrane 5 prevents the electroformed film 2 from adhering, and since it has a height greater than the thickness of the electroformed film 2, it is not buried in the electroformed film 2 and can be easily removed. [Effect of the invention] The electrode ring for electroforming of the present invention is formed by electroforming6...
... Cap, 7 ... Cathode, Death ... Anode.
Claims (1)
有し、かつ、不動態被膜を有することを特徴とする電鋳
用電極リング。An electrode ring for electroforming, characterized in that it has a height greater than the thickness of an electroformed film formed by electroforming, and has a passive film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22561788A JPH0273986A (en) | 1988-09-09 | 1988-09-09 | Electrode ring for electrocasting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22561788A JPH0273986A (en) | 1988-09-09 | 1988-09-09 | Electrode ring for electrocasting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0273986A true JPH0273986A (en) | 1990-03-13 |
Family
ID=16832125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22561788A Pending JPH0273986A (en) | 1988-09-09 | 1988-09-09 | Electrode ring for electrocasting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0273986A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0813182A (en) * | 1994-06-24 | 1996-01-16 | Nec Corp | Production of stamper for lining |
-
1988
- 1988-09-09 JP JP22561788A patent/JPH0273986A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0813182A (en) * | 1994-06-24 | 1996-01-16 | Nec Corp | Production of stamper for lining |
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