JPH05263292A - Method for cleaning metallic material - Google Patents
Method for cleaning metallic materialInfo
- Publication number
- JPH05263292A JPH05263292A JP5865092A JP5865092A JPH05263292A JP H05263292 A JPH05263292 A JP H05263292A JP 5865092 A JP5865092 A JP 5865092A JP 5865092 A JP5865092 A JP 5865092A JP H05263292 A JPH05263292 A JP H05263292A
- Authority
- JP
- Japan
- Prior art keywords
- acid solution
- tank
- pickling
- metal
- metal piece
- 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.)
- Withdrawn
Links
- 239000007769 metal material Substances 0.000 title claims abstract description 5
- 238000000034 method Methods 0.000 title abstract description 10
- 238000004140 cleaning Methods 0.000 title description 4
- 239000002253 acid Substances 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 19
- 229910052751 metal Inorganic materials 0.000 claims abstract description 19
- 238000005554 pickling Methods 0.000 claims abstract description 18
- 238000009713 electroplating Methods 0.000 claims abstract description 16
- 150000001455 metallic ions Chemical class 0.000 abstract 4
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 229910021645 metal ion Inorganic materials 0.000 description 10
- 238000007747 plating Methods 0.000 description 7
- 239000012535 impurity Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910001431 copper ion Inorganic materials 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Electroplating Methods And Accessories (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は金属素材の洗浄方法に関
し、特に電解めっき前の酸洗工程に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for cleaning a metal material, and more particularly to a pickling step before electrolytic plating.
【０００２】[0002]
【従来の技術】従来の金属表面の電解めっき前の酸洗方
法は、図３に示すように、金属片１を槽４内の電解めっ
き液の酸成分と同じ酸液５に浸漬して金属片１の表面を
電解めっき液になじませていた。2. Description of the Related Art A conventional pickling method before electrolytic plating of a metal surface is as shown in FIG. The surface of the piece 1 was soaked in the electrolytic plating solution.
【０００３】[0003]
【発明が解決しようとする課題】この従来の電解めっき
前の金属片１の酸洗い方法では、酸洗浄時、酸液中に解
けた金属インオンを取り除く方法がなく金属イオンが次
第に増加して、酸洗以降の電解めっき槽内の液中の金属
イオンが増加してしまう。この金属片１の金属イオン
は、電解めっきの槽においては不純物となり、この不純
物も一緒にめっき皮膜の中に入りこむ為、めっき皮膜の
膜質を悪化させる問題点があった。In this conventional method for pickling metal pieces 1 before electrolytic plating, there is no method for removing the dissolved metal inons in the acid solution during pickling, and metal ions gradually increase, Metal ions in the liquid in the electrolytic plating tank after pickling will increase. The metal ions of the metal piece 1 become impurities in the electrolytic plating tank, and these impurities also enter into the plating film, which causes a problem of deteriorating the film quality of the plating film.
【０００４】[0004]
【課題を解決するための手段】本発明の金属素材の洗浄
方法は、酸液に電気を流しながら金属片を酸液中に浸漬
できるように、電極を備えている。The method for cleaning a metal material according to the present invention is provided with an electrode so that a metal piece can be immersed in an acid solution while applying electricity to the acid solution.
【０００５】[0005]
【実施例】次に本発明について図面を参照して説明す
る。図１は本発明の一実施例を説明するための酸洗槽の
断面図である。本実施例では、槽４内に電極を設けた場
合の一例で、槽４において金属片１を酸液５によって洗
浄する時、電極２の間に電流を流す。そうすると、金属
片１から酸液５中に解けた金属イオンが極板３に電着し
て酸液５中の金属イオンの濃度を減少することができ
る。The present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of a pickling tank for explaining an embodiment of the present invention. In this example, an electrode is provided in the tank 4, and when the metal piece 1 is washed with the acid solution 5 in the tank 4, an electric current is passed between the electrodes 2. Then, the metal ions dissolved in the acid solution 5 from the metal piece 1 are electrodeposited on the electrode plate 3 to reduce the concentration of the metal ions in the acid solution 5.
【０００６】図２は、本発明の実施例２の酸洗槽の断面
図である。本実施例では、槽４外に電極を設けた場合の
一例で、槽４において金属片１を酸液５によって洗浄す
る時、ポンプ６によって酸液５を循環させる。このポン
プ６と槽４を結ぶ配管途中に極板３を取り付け電極２間
に電流を流す。そうすると、配管途中にある極板３に酸
液５中にある金属片１の金属イオンが電着して、酸液５
中の金属イオンの濃度を減少することができる。しかも
電極２を槽６から離すことにより金属片１の分極による
電解めっきの恐れがなくなる。FIG. 2 is a sectional view of a pickling tank according to a second embodiment of the present invention. In this embodiment, an electrode is provided outside the tank 4, and when the metal piece 1 is washed with the acid solution 5 in the tank 4, the pump 6 circulates the acid solution 5. An electrode plate 3 is attached in the middle of the pipe connecting the pump 6 and the tank 4, and an electric current is passed between the electrodes 2. Then, the metal ions of the metal piece 1 in the acid solution 5 are electrodeposited on the electrode plate 3 in the middle of the pipe, and the acid solution 5
The concentration of metal ions in it can be reduced. Moreover, by separating the electrode 2 from the bath 6, there is no risk of electrolytic plating due to polarization of the metal piece 1.
【０００７】このように本発明の実施例においては、極
板３によって酸液５中の金属インオを減少することがで
き、例えば半田めっきを施こす電解めっきにおいて銅材
と４２合金材との酸液５が共用の場合、酸液５中に解け
ている銅イオンが、４２合金材の表面に置換し、半田め
っき施行時、半田めっきの密着性が著しく悪くなるとい
う問題もなくなるという効果もある。As described above, in the embodiment of the present invention, the metal plate in the acid solution 5 can be reduced by the electrode plate 3. For example, in electrolytic plating for solder plating, the acid of the copper material and the 42 alloy material can be reduced. When the liquid 5 is shared, there is also an effect that copper ions dissolved in the acid liquid 5 are substituted on the surface of the 42 alloy material, and there is no problem that the adhesiveness of the solder plating is significantly deteriorated when solder plating is performed. .
【０００８】[0008]
【発明の効果】以上説明したように本発明は、電解めっ
き前の酸液中の金属イオンを減少することができる為、
酸洗工程以降の槽への金属イオンの持込み量を減少出来
る。そのため、この金属インオンが電解めっきを施こす
時にめっき皮膜中に入る恐れがなくなり、めっき膜質向
上となる。また電解めっき液には、不純物である金属イ
オンの持ち込みがっ減少する為、電解めっき槽の薬液更
新ならびに補充頻度を低減することができる効果を有す
る。さらに、異種素材の金属片の同一槽の酸液での酸洗
浄ができ、素材ごとに槽を建浴する必要がなくなるとい
う効果がある。As described above, the present invention can reduce the metal ions in the acid solution before electrolytic plating.
The amount of metal ions carried into the tank after the pickling step can be reduced. Therefore, there is no possibility that this metal inon will enter the plating film when electrolytic plating is applied, and the quality of the plating film is improved. In addition, since the carry-in of metal ions, which are impurities, is reduced in the electrolytic plating solution, it is possible to reduce the frequency of renewal and replenishment of the chemical solution in the electrolytic plating bath. Furthermore, there is an effect that it is possible to perform acid cleaning of metal pieces of different materials with an acid solution in the same tank, and it is not necessary to build a tank for each material.
【図１】本発明の実施例１の酸洗方法を示す酸洗槽の断
面図。FIG. 1 is a sectional view of a pickling tank showing a pickling method according to a first embodiment of the present invention.
【図２】実施例２の酸洗方法を示す酸洗槽の断面図。FIG. 2 is a sectional view of a pickling tank showing a pickling method according to a second embodiment.
【図３】従来の酸洗方法を示す酸洗槽の断面図。FIG. 3 is a sectional view of a pickling tank showing a conventional pickling method.
１ 金属片 ２ 電極 ３ 極板 ４ 槽 ５ 酸液 ６ ポンプ 1 metal piece 2 electrode 3 electrode plate 4 tank 5 acid solution 6 pump
Claims (1)
の酸洗工程において酸液に電極を設け、該電極間に電圧
を印加しながら、金属片を酸液に浸漬することを特徴と
する金属素材の洗浄方法。1. A metal piece is immersed in an acid solution while an electrode is provided in the acid solution in a pickling step immediately before subjecting the surface of the metal piece to electrolytic plating, and a voltage is applied between the electrodes. How to clean metal materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5865092A JPH05263292A (en) | 1992-03-17 | 1992-03-17 | Method for cleaning metallic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5865092A JPH05263292A (en) | 1992-03-17 | 1992-03-17 | Method for cleaning metallic material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05263292A true JPH05263292A (en) | 1993-10-12 |
Family
ID=13090464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5865092A Withdrawn JPH05263292A (en) | 1992-03-17 | 1992-03-17 | Method for cleaning metallic material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05263292A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4845186A (en) * | 1987-08-24 | 1989-07-04 | Dai-Ichi Kogyo Seiyaku Co., Ltd. | Method for production of modified polyesters |
-
1992
- 1992-03-17 JP JP5865092A patent/JPH05263292A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4845186A (en) * | 1987-08-24 | 1989-07-04 | Dai-Ichi Kogyo Seiyaku Co., Ltd. | Method for production of modified polyesters |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19990518 |