JPH0211775A - Treatment to prevent sticking of plating metal to stainless steel which comes in contact with electroless plating liquid - Google Patents
Treatment to prevent sticking of plating metal to stainless steel which comes in contact with electroless plating liquidInfo
- Publication number
- JPH0211775A JPH0211775A JP15987888A JP15987888A JPH0211775A JP H0211775 A JPH0211775 A JP H0211775A JP 15987888 A JP15987888 A JP 15987888A JP 15987888 A JP15987888 A JP 15987888A JP H0211775 A JPH0211775 A JP H0211775A
- Authority
- JP
- Japan
- Prior art keywords
- plating
- stainless steel
- nitric acid
- cell
- tank
- 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
- 238000007747 plating Methods 0.000 title claims abstract description 38
- 239000002184 metal Substances 0.000 title claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 17
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 15
- 239000010935 stainless steel Substances 0.000 title claims abstract description 15
- 238000007772 electroless plating Methods 0.000 title claims abstract description 9
- 239000007788 liquid Substances 0.000 title abstract description 7
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910017604 nitric acid Inorganic materials 0.000 claims abstract description 22
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 10
- 238000002161 passivation Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 14
- 238000012546 transfer Methods 0.000 claims description 5
- 238000009713 electroplating Methods 0.000 claims 1
- 238000012360 testing method Methods 0.000 description 12
- 230000002265 prevention Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000007796 conventional method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000003672 processing method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 235000002597 Solanum melongena Nutrition 0.000 description 2
- 244000061458 Solanum melongena Species 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- KPVWDKBJLIDKEP-UHFFFAOYSA-L dihydroxy(dioxo)chromium;sulfuric acid Chemical compound OS(O)(=O)=O.O[Cr](O)(=O)=O KPVWDKBJLIDKEP-UHFFFAOYSA-L 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
Landscapes
- Chemically Coating (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明はメッキ槽の処理方法に関するもので、無電解メ
ッキ液と接触するステンレススチールへの処理に利用さ
れるものである。[Detailed Description of the Invention] [Object of the Invention] (Field of Industrial Application) The present invention relates to a method for treating a plating bath, and is used for treating stainless steel that comes into contact with an electroless plating solution. .
（従来の技術）
従来無電解メッキのメッキ槽の様に無電解メッキと接触
しているものに対してのメッキ金属付着防止策としては
、パンベート処理を施して表面に不動態化膜を生成させ
ている。(Conventional technology) Conventionally, as a measure to prevent plating metal from adhering to objects that come into contact with electroless plating, such as electroless plating baths, panbate treatment is applied to generate a passivation film on the surface. ing.
（発明が解決しようとする課題）
しかし前記不動態化膜は、薄くパンベート処理を行って
も洛中のザラ（処理物ハリ等）がメッキ槽などの表壁に
落下し、表壁にメッキ金属が付着析出する。(Problem to be Solved by the Invention) However, even if the passivation film is thinly panbate-treated, the roughness (hardness of the processed material, etc.) in the passivation film falls onto the surface wall of the plating tank, etc., and the plated metal remains on the surface wall. Adhesive deposits.
その度にザラの熔解及び不動態化膜を生成させる目的で
、１〜２日毎にパンベート処理を行っており、１度のパ
ンベート処理に用する時間は１２時間以上がいるもので
ある。Panbate treatment is performed every 1 to 2 days for the purpose of dissolving the grains and generating a passivation film each time, and the time required for one panbate treatment is 12 hours or more.
すなわち、
パンベート処理を施しても、ザラ等が落下した場合には
、メッキ金属付着の進行はほとんど抑制するこができず
、パンベート処理頻度が１〜２日毎と多く、パンベート
処理の時間がかかり、更にステンレスへの干渉着色膜の
生成方法としての液はクロム酸−硫酸溶液、ＮａＯＨ溶
液が用いられるが、前記薬品にはスラッジの溶解能力が
無いという問題点がある。In other words, even if panbate treatment is performed, if the roughness or the like falls, the progress of plating metal adhesion can hardly be suppressed, and the frequency of panbate treatment is as high as every 1 to 2 days, making the panbate treatment time-consuming. Furthermore, a chromic acid-sulfuric acid solution or a NaOH solution is used as a solution for producing an interference colored film on stainless steel, but there is a problem in that these chemicals do not have the ability to dissolve sludge.
本発明は簡易にメッキ槽へのメッキ付着の進行を抑制す
ることのできるメッキ金属付着防止処理方法を技術的課
題とするものである。The technical object of the present invention is to provide a treatment method for preventing plating from adhering to a plating tank, which can easily inhibit the progress of adhesion of plating to a plating tank.
（課題を解決するための手段）
前記技術的課題を解決するために講じた技術的手段は次
のようである。(Means for solving the problem) The technical means taken to solve the above technical problem are as follows.
処理方法としては、硝酸を用いて、メッキ金属の付着防
止を必要とする処理物を陽極として、０゜５〜３Ｖの定
電圧によって１分以上酸化し、酸化皮膜を生成させるも
のである。The treatment method is to use nitric acid to oxidize the object to be treated, which requires prevention of adhesion of plated metal, as an anode at a constant voltage of 0 DEG 5 to 3 V for 1 minute or more to form an oxide film.
（作用）
前記技術的手段は次のように作用する。すなわち、
メッキ槽に入れた硝酸に一定電圧で１分以上加電するこ
とにより迅速に不動態化膜が生成できるものである。(Operation) The technical means operates as follows. That is, a passivation film can be rapidly generated by applying a constant voltage to nitric acid placed in a plating bath for 1 minute or more.
この処理方法と従来方法によるものについてナス１〜ピ
ースにて比較した。This treatment method and the conventional method were compared for eggplant pieces.
テストピースの作成については第１図による様式を用い
処理を行なった。The test pieces were prepared using the format shown in Figure 1.
図に於て１はメッキ金属の付着防止を必要とする処理物
（以下テストピースと言う）で材質は５ＵＳ３１６Ｌで
ザイスはｊｉ］ ７０ ｍｌｌ Ｘ長さ１５０１×厚さ
２１ｍで、２ば陰極棒で材質は５ＵＳ３０４、Φ１．Ｏ
ｔｍの丸棒で、３はガラスビーカー、４は硝酸、５は整
流器（定電圧制御）である。In the figure, 1 is a processed object (hereinafter referred to as a test piece) that requires prevention of adhesion of plated metal, the material is 5US316L, the size is 70 ml x length 1501 x thickness 21 m, and 2 is a cathode rod. The material is 5US304, Φ1. O
tm round bar, 3 is a glass beaker, 4 is nitric acid, and 5 is a rectifier (constant voltage control).
又１のナス１−ピースは１／２（長１５０１側において
）が浸漬される量の硝酸を投入し、テストピースＭ１〜
隔６について試験を行った。In addition, add enough nitric acid to soak 1/2 of the eggplant piece (on the length 1501 side), and test pieces M1~
Tests were conducted on interval 6.
次の第１表に処理条件を示す。The processing conditions are shown in Table 1 below.
第１表
従来法であるパシペート処理方法でのテストピース作成
については、第１表に示す作成方法で作成したサンプル
と従来法によるパシペート処理とのメッキ金属付着具合
を比較を行うために、バシペート処理のテストピースは
第１表に記載したテストピース隘１〜１Ｉｋ１６の未処
理部に対して６０％硝酸で３６Ｈ浸漬して処理した。Table 1 Regarding the test piece creation using the conventional passipate treatment method, in order to compare the adhesion of plated metal between the samples created using the method shown in Table 1 and the passipate treatment using the conventional method, The test pieces were treated by immersing the untreated parts of the test pieces Nos. 1 to 1Ik16 listed in Table 1 in 60% nitric acid for 36 hours.
本実施例によるものと従来例によるものとの比較テスト
は第２図に示す器具で実施した。A comparative test between the present example and the conventional example was carried out using the apparatus shown in FIG.
図に於て６は前記条件により処理たテスｉ・ピース嵐１
〜尚６で、７は脱脂処理した鉄のピース（１］１（ｌｎ
ｘ長さ１５０酊×厚さ１璽ｌ）で６のテストピースの上
に設置しである。In the figure, 6 is Tes i Peace Arashi 1 processed under the above conditions.
~In addition, in 6, 7 is a degreased iron piece (1] 1 (ln
It was installed on top of the test piece No. 6 with a length of 150 mm and a thickness of 1 liter.
８ば老化した（６ターン液）無電解ニッケルメッキ液（
ＨＦ２．３０）である。8ba aged (6 turn solution) electroless nickel plating solution (
HF2.30).
以上の構成で浴温を９５℃に保ち、１２０分放置したそ
の後のテストピースへのメッキ金属付着具合を比較した
。その結果を第３図に示す。With the above configuration, the bath temperature was maintained at 95° C., and the degree of adhesion of plated metal to the test piece after being left for 120 minutes was compared. The results are shown in FIG.
第３図のテストピースの隔１〜陽６について、いづれも
本実施例による処理方法はＮｉの付着が殆どなくメッキ
金属の付着防止策として極めて有用であり、又硝酸濃度
での影響は殆ど無いものである。Regarding test pieces 1 to 6 in Fig. 3, the treatment method according to this example causes almost no Ni adhesion, and is extremely useful as a measure to prevent adhesion of plated metal, and has almost no effect on nitric acid concentration. It is something.
（実施例） 以下実施例について説明する。(Example) Examples will be described below.
本処理方法を無電解ニッケルメッキ槽に実施した状況を
第４図に示す。FIG. 4 shows a situation in which this treatment method was applied to an electroless nickel plating tank.
９ば無電解ニッケル槽（木樽５ＴＪＳ）１０は予備槽、
１１は硝酸槽、１２はニッケル送液ポンプで、１３は硝
酸送液ポンプで、１４は析出防止電源、１５はステンレ
ス棒である。9 is an electroless nickel tank (wooden barrel 5TJS), 10 is a spare tank,
11 is a nitric acid tank, 12 is a nickel liquid feeding pump, 13 is a nitric acid liquid feeding pump, 14 is a precipitation prevention power source, and 15 is a stainless steel rod.
前記に示す装置に於て、従来の処理法では、以下の作業
を行っていた。In the apparatus shown above, the following operations were performed in the conventional processing method.
（１）木樽の無電解ニッケルメッキ液を予備槽へ移す。(1) Transfer the electroless nickel plating solution in the wooden barrel to the reserve tank.
（２）硝酸槽の硝酸（約５０％）を木樽へ移す。(2) Transfer the nitric acid (approximately 50%) from the nitric acid tank to a wooden barrel.
（３）硝酸をはったまま、１５■１放置。(3) Leave the nitric acid in place for 15 minutes.
（４）硝酸を硝酸槽へ移す。(4) Transfer nitric acid to nitric acid tank.
（５）木樽を水洗する。(5) Rinse the wooden barrel with water.
（６）予備槽の液を木樽へ移す 計、約１８Ｈかかる。(6) Transfer the liquid from the reserve tank to the wooden barrel It takes about 18 hours in total.
以上の作業を液が老化すると２日毎に行なわないと槽に
メッキ金属が付着し薬品の消耗及び処理時間の増大によ
る生産数の低下などの不具合が発生していた。If the above operations were not carried out every two days as the solution aged, problems such as plating metal adhering to the tank, consumption of chemicals, and a decrease in production due to an increase in processing time occurred.
そこで本実施例による処理方法を以下の手順で行った。Therefore, the processing method according to this embodiment was performed in the following steps.
前記（１）、及び（２）は従来と同し方法であり
（３）は、硝酸をはった段階で析出防止電源を１■にて
ＯＮした、（陽極はメッキ氷槽、陰極はステンレス棒）
２０分後ＯＦＦにて不動態化膜（干渉着色膜）生成しく
４）、 （５）、 （６）は従来と同じである。計
約３．５Ｈ
前記のように（３）の方法を（３）゛に変更するのみで
槽へのメッキ金属付着が大巾に抑制できた。The above methods (1) and (2) are the same as the conventional method, and in (3), the precipitation prevention power supply was turned on at 1.0 seconds after applying nitric acid (the anode was in a plating ice bath and the cathode was in a stainless steel bath). rod)
After 20 minutes, a passivation film (interference colored film) is generated when the device is turned off.4), (5), and (6) are the same as before. Approximately 3.5 hours in total As mentioned above, simply by changing method (3) to method (3), it was possible to greatly suppress the adhesion of plated metal to the tank.
又一般に無電解メッキ槽に用いられる析出防止電源を用
いているので（陽極はメッキ槽、陰極はステンレス棒）
、何ら新しいものを付加するものもなく容易に行なえる
もので、槽へのメッキ金属付着をおさえこむことが出来
薬品の消耗等が無くなるものである。Also, since it uses a precipitation prevention power source that is generally used in electroless plating tanks (the anode is the plating tank, the cathode is a stainless steel rod).
, which can be easily carried out without adding anything new, can suppress adhesion of plating metal to the tank, and eliminates the consumption of chemicals.
本発明は次の効果を有する。 The present invention has the following effects.
（１）パンベート処理の時間が極端に短縮可能、（２）
パンベート処理頻度が１／７程度（約１４日毎）となる
、
（３）ザラの落下による析出の進行を抑制できる、（４
）簡単に干渉着色膜を生成できる、（５）硝酸による処
理の為、ザラの溶解も同時に可能、
（６）従来設備に小型整流器を取付りるだけで容易に処
理可能、
（７）メッキ治具、カゴにも同様の処理することでメッ
キ付着防止ができ、メッキ薬品コストの低減が計れる、(1) Panbate processing time can be extremely shortened, (2)
The frequency of panbate treatment is reduced to about 1/7 (approximately every 14 days), (3) The progress of precipitation due to falling grains can be suppressed, (4)
) Easily generates an interference colored film, (5) Dissolves grains at the same time due to treatment with nitric acid, (6) Easily processes by simply attaching a small rectifier to conventional equipment, (7) Plating treatment. By applying the same treatment to the utensils and baskets, plating can be prevented from adhering, reducing plating chemical costs.
第１図は開発処理ユニットの説明図、第２図は開発処理
品と従来品の比較用テスト器の説明図、第３図は従来法
と本実施例の処理法による金属付着具合の説明図、第４
図は本実施例の説明図である。
９・・・無電解メッキ槽
１４・・・電源
１５・・・ステンレス棒。
ＪＩ２図
第３図Fig. 1 is an explanatory diagram of the developed processing unit, Fig. 2 is an explanatory diagram of a test device for comparison between the developed processing product and the conventional product, and Fig. 3 is an explanatory diagram of the metal adhesion by the conventional method and the processing method of this example. , 4th
The figure is an explanatory diagram of this embodiment. 9... Electroless plating tank 14... Power source 15... Stainless steel rod. JI2 Figure 3
Claims (1)
キ金属付着防止処理方法に於て、無電解ニッケルメッキ
液を予備槽へ移し、硝酸をメッキ槽に規定量入れ、メッ
キ槽を陽極、ステンレス棒を陰極として０．５〜３Ｖの
定電圧を１分以上加電して不動態化膜を生成後、前記硝
酸を硝酸槽へ移し、メッキ槽を水洗後、前記ニッケルメ
ッキ液をメッキ槽に入れる、無電解メッキ液と接触する
ステンレススチールへのメッキ金属付着防止処理方法。In a treatment method to prevent plating metal from adhering to stainless steel that comes into contact with electroless plating solution, the electroless nickel plating solution is transferred to a preliminary tank, a specified amount of nitric acid is poured into the plating tank, and the plating tank is used as the anode and the stainless steel rod as the cathode. After generating a passivation film by applying a constant voltage of 0.5 to 3 V for more than 1 minute, transfer the nitric acid to a nitric acid tank, wash the plating tank with water, and put the nickel plating solution into the plating tank. A treatment method to prevent plating metal from adhering to stainless steel that comes into contact with electrolytic plating solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63159878A JPH0762255B2 (en) | 1988-06-28 | 1988-06-28 | Method for preventing adhesion of plating metal to stainless steel electroless plating bath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63159878A JPH0762255B2 (en) | 1988-06-28 | 1988-06-28 | Method for preventing adhesion of plating metal to stainless steel electroless plating bath |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0211775A true JPH0211775A (en) | 1990-01-16 |
| JPH0762255B2 JPH0762255B2 (en) | 1995-07-05 |
Family
ID=15703177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63159878A Expired - Fee Related JPH0762255B2 (en) | 1988-06-28 | 1988-06-28 | Method for preventing adhesion of plating metal to stainless steel electroless plating bath |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0762255B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04165079A (en) * | 1990-10-25 | 1992-06-10 | Nippon Techno Kk | Method for producing and working chemical nickel plating liquid cell and chemical nickel plating method using this plating liquid cell |
| JP2009249656A (en) * | 2008-04-02 | 2009-10-29 | Mitsubishi Electric Corp | Plating apparatus and plating method |
| JP2019183245A (en) * | 2018-04-16 | 2019-10-24 | 日本カニゼン株式会社 | Plating facility |
| US11066108B2 (en) | 2019-04-05 | 2021-07-20 | Honda Motor Co., Ltd. | Damper housing for vehicle |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS596398A (en) * | 1982-06-30 | 1984-01-13 | Nisshin Steel Co Ltd | Surface treatment of bright annealed ferrite type stainless steel |
-
1988
- 1988-06-28 JP JP63159878A patent/JPH0762255B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS596398A (en) * | 1982-06-30 | 1984-01-13 | Nisshin Steel Co Ltd | Surface treatment of bright annealed ferrite type stainless steel |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04165079A (en) * | 1990-10-25 | 1992-06-10 | Nippon Techno Kk | Method for producing and working chemical nickel plating liquid cell and chemical nickel plating method using this plating liquid cell |
| JP2009249656A (en) * | 2008-04-02 | 2009-10-29 | Mitsubishi Electric Corp | Plating apparatus and plating method |
| JP2019183245A (en) * | 2018-04-16 | 2019-10-24 | 日本カニゼン株式会社 | Plating facility |
| US11066108B2 (en) | 2019-04-05 | 2021-07-20 | Honda Motor Co., Ltd. | Damper housing for vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0762255B2 (en) | 1995-07-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |