JPS6112038B2 - - Google Patents

Info

Publication number
JPS6112038B2
JPS6112038B2 JP57032483A JP3248382A JPS6112038B2 JP S6112038 B2 JPS6112038 B2 JP S6112038B2 JP 57032483 A JP57032483 A JP 57032483A JP 3248382 A JP3248382 A JP 3248382A JP S6112038 B2 JPS6112038 B2 JP S6112038B2
Authority
JP
Japan
Prior art keywords
palladium
nickel
sodium
bath
content
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.)
Expired
Application number
JP57032483A
Other languages
Japanese (ja)
Other versions
JPS5816089A (en
Inventor
Shurutsueeberuge Kurausu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RANGUBAIN FUANHAUZERU UERUKE AG
Original Assignee
RANGUBAIN FUANHAUZERU UERUKE AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by RANGUBAIN FUANHAUZERU UERUKE AG filed Critical RANGUBAIN FUANHAUZERU UERUKE AG
Publication of JPS5816089A publication Critical patent/JPS5816089A/en
Publication of JPS6112038B2 publication Critical patent/JPS6112038B2/ja
Granted legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00Electroplating: Baths therefor
    • C25D3/02Electroplating: Baths therefor from solutions
    • C25D3/56Electroplating: Baths therefor from solutions of alloys
    • C25D3/562Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of iron or nickel or cobalt
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00Electroplating: Baths therefor
    • C25D3/02Electroplating: Baths therefor from solutions
    • C25D3/56Electroplating: Baths therefor from solutions of alloys
    • C25D3/567Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of platinum group metals

Description

【発明の詳細な説明】 本発明は、浴が、5ないし30g/の範囲のパ
ラジウム含有量および同様に5ないし30g/の
範囲のニツケル含有量、およびスルホン酸塩の添
加物を含むパラジウムおよびニツケルアミンの水
溶液から成り、この水溶液において、電気的に析
出される合金が30ないし90重量%のパラジウム含
有量を有するように、パラジウムとニツケルの比
が設定されている、装飾的および工業的な被覆の
ためパラジウム/ニツケル合金を電気的に析出す
る浴に関する。このような浴によつて作られる被
覆は金の代用として使われる。
DETAILED DESCRIPTION OF THE INVENTION The present invention provides that the bath contains palladium and nickel containing a palladium content in the range from 5 to 30 g/ and a nickel content in the range from 5 to 30 g/ as well as a sulfonate additive. Decorative and industrial coatings consisting of an aqueous solution of an amine, in which the ratio of palladium to nickel is set such that the electrolytically deposited alloy has a palladium content of 30 to 90% by weight. bath for electrolytic deposition of palladium/nickel alloys. The coating produced by such baths is used as a substitute for gold.

公知の浴(英国特許第11 43 178号明細書)に
おいて、スルホン酸および/またはその塩の添加
物が光沢を形成するために使われる。詳細に述べ
れば、ナフタリン−1・5−ジスルホン酸のナト
リウム塩、ナフタリン−1・3・6−トリスルホ
ン酸のナトリウム塩、およびサツカリン(o−ス
ルホ安息香酸イミド)およびp−トルオスルホン
アミドのような、ナフタリンスルホン酸および芳
香族スルホンアミドの塩が挙げられる。しかし実
際にはこのような浴により作られる被覆は、機械
的に考慮して要求には相応せず、かつ光沢すら多
くの装飾のために不十分であるとわかつた。本発
明の基礎とする知識によればこれら欠点は、不完
全な晶溶体形成による。本発明において晶溶体と
は、結晶格子内にパラジウム原子とニツケル原子
を有する、いわゆる混晶のことを表すものとす
る。
In the known bath (GB 11 43 178), additives of sulfonic acid and/or its salts are used to create the shine. Specifically, sodium salts of naphthalene-1,5-disulfonic acid, sodium salts of naphthalene-1,3,6-trisulfonic acid, and saccharin (o-sulfobenzoic acid imide) and p-toluosulfonamide, etc. Examples include salts of naphthalene sulfonic acid and aromatic sulfonamides. However, in practice it has been found that the coatings produced by such baths do not meet the requirements from mechanical considerations and even the gloss is insufficient for many decorations. According to the knowledge on which the invention is based, these disadvantages are due to incomplete crystal solution formation. In the present invention, the crystal solution refers to a so-called mixed crystal having palladium atoms and nickel atoms in a crystal lattice.

本発明の課題は、支障ない晶溶体形成が行われ
るように初めて述べたような浴を構成することに
ある。
The object of the invention is to construct a bath of the type mentioned for the first time in such a way that an unhindered crystal solution formation takes place.

この課題を解決するため、本発明は次のことを
示している。すなわち晶溶体形成を改善するため
添加物が、ナトリウムビニルスルホナート、ナト
リウムアリルスルホナート、ナトリウムプロピン
スルホナート、ナトリウムメタリルスルホナー
ト、N−ピリジニウムプロピルスルホベタイン、
N−ピリジニウムメチルスルホベタイン、N−ベ
ンジルピリジニウム−2−エチルスルホン酸、ナ
トリウム塩のうち1つの物質またはこれら物質の
混合物から成る。本発明の教示に従つて添加物を
選択すれば、電気的析出によつて浴からパラジウ
ム/ニツケル被覆が得られ、これら被覆は、非常
に細かくかつ均一な微結晶および支障ない晶溶体
形成の点で優れている。それにより光沢、伸度お
よび種々の腐食作用に対する耐腐食性が高められ
る。さらに平坦度も改善されている。
In order to solve this problem, the present invention shows the following. That is, additives for improving crystal solution formation include sodium vinylsulfonate, sodium allylsulfonate, sodium propynesulfonate, sodium methallylsulfonate, N-pyridiniumpropylsulfobetaine,
It consists of one substance or a mixture of these substances: N-pyridinium methylsulfobetaine, N-benzylpyridinium-2-ethylsulfonic acid, sodium salt. If the additives are chosen in accordance with the teachings of the present invention, palladium/nickel coatings can be obtained from the bath by electro-deposition, and these coatings exhibit very fine and uniform crystallites and unhindered crystal solution formation. Excellent. The gloss, elongation and corrosion resistance against various corrosive effects are thereby increased. Furthermore, flatness has also been improved.

次に本発明および得られた効果を典形的な実施
例によつて説明する。
Next, the present invention and the effects obtained will be explained using typical examples.

例 1 (脂肪族スルホン酸塩の添加) 次のような電解質が作られた。Example 1 (Addition of aliphatic sulfonate) The following electrolytes were made:

(Pd(NH34)Cl2として20gのパラジウム、 (Ni(NH36)SO4として10gのニツケル、 電解質に十分な導電度を設定するため
(NH42SO4またはNH4Clとして50gの支持電解質
(Leitsalz)、 PH値を8.5に設定するためNH4OH、 1の浴にするため水、 2.5gのナトリウムアリルスルホナート、 電気的析出の際の浴温度30℃、わずかな物品の
動き、陰極電流密度1A/dm2、露出時間10分。
20 g of palladium as (Pd( NH3 ) 4 ) Cl2 , 10 g of nickel as (Ni( NH3 ) 6 ) SO4 , to set up sufficient conductivity in the electrolyte ( NH4 ) 2SO4 or NH4 50 g of supporting electrolyte (Leitsalz) as Cl, NH 4 OH to set the PH value to 8.5, water to make a bath of 1, 2.5 g of sodium allylsulfonate, bath temperature during electrodeposition 30 °C, slightly movement of the article, cathode current density 1 A/dm 2 , exposure time 10 minutes.

ブラシをかけたしんちゆう板上に、明白な平坦
度なしにかつ阻害現象なしに光沢のあるパラジウ
ム・ニツケル層が得られた。
A shiny palladium-nickel layer was obtained on the brushed steel plate without any obvious flatness and without any inhibition phenomena.

耐腐食性を試験するため、このようにして得ら
れたテスト片は、室温で60秒間薄められた硝酸に
浸され、この硝酸は、等部の濃硝酸と水から作ら
れた。腐食作用は見られなかつた。
To test the corrosion resistance, the test pieces thus obtained were immersed for 60 seconds at room temperature in diluted nitric acid, which was made from equal parts of concentrated nitric acid and water. No corrosive effects were observed.

しかし初めに述べた英国特許第11 43 178号明
細書に従つて、ナトリウムアリルスルホナートの
代りに10gのナトリウムナフタリン−1・3・6
−トリルスルホナートを電解質に加えると、パラ
ジウム・ニツケル層は得られるが、この層は、前
記の硝酸試験においてかなり腐食した。この原因
は、不完全な晶溶体形成にある。X線検査によれ
ば、遊離したニツケルが検出され、これが腐食の
原因をなしている。
However, according to British Patent No. 11 43 178 mentioned at the outset, instead of sodium allylsulfonate, 10 g of sodium naphthalene-1,3,6
- When tolylsulfonate is added to the electrolyte, a palladium-nickel layer is obtained, which corrodes considerably in the nitric acid test described above. The cause of this is incomplete crystal solution formation. X-ray inspection detected loose nickel, which is the cause of the corrosion.

例 2 (脂肪族スルホン酸塩組合せの添加) 次のような電解質が作られた。Example 2 (Addition of aliphatic sulfonate combination) The following electrolytes were made:

(Pd(NH34)Cl2として20gのパラジウム、 (Ni(NH36)SO4として10gのニツケル、 電解質に十分な導電度を設定するため
(NH42SO4またはNH4CLとして50gの支持電解
質(Leitsalz)、 PH値を8.5に設定するためNH4OH、 1の浴にするため水、 2.5gのナトリウムアリルスルホナート、 0.25gのナトリウムプロピンスルホナート、 電気的析出の際の浴温度30℃、わずかな物品の
動き、陰極電流密度1A/dm2、露出時間10分。
20 g of palladium as (Pd( NH3 ) 4 ) Cl2 , 10 g of nickel as (Ni( NH3 ) 6 ) SO4 , to set up sufficient conductivity in the electrolyte ( NH4 ) 2SO4 or NH4 50 g of supporting electrolyte (Leitsalz) as CL, NH 4 OH to set the PH value to 8.5, water to make a bath of 1, 2.5 g of sodium allylsulfonate, 0.25 g of sodium propynesulfonate, electrodeposition Bath temperature at 30°C, slight movement of the article, cathode current density 1A/dm 2 , exposure time 10 minutes.

ブラシをかけたしんちゆう板上に、著しい平坦
度なしにかつ阻害現象なしに例1と比較して一層
光沢のあるパラジウム・ニツケル層が得られた。
例1による硝酸試験に同様に良好に耐えた。
A more shiny palladium-nickel layer than in Example 1 was obtained on the brushed solid wood board, without significant flatness and without any inhibition phenomena.
It also withstood the nitric acid test according to Example 1 well.

例 3 (脂肪族および異種環状のスルホン酸塩を組合
せて添加) 次のような電解質が作られた。
Example 3 (Combined addition of aliphatic and heterocyclic sulfonates) The following electrolyte was made.

(Pd(NH34)SO4として20gのパラジウム、 (Ni(NH36)Cl2として10gのニツケル、 電解質に十分な導電度を設定するため
(NH42SO4またはNH4Clとして50gの支持電解
質、 PH値を8.5に設定するためNH4OH、 1の浴にするため水、 2.5gのナトリウムアリルスルホナート、 0.1gのN−ピリジニウムプロピルスルホベタ
イン、 電気的析出の際の浴温度30℃、わずかな物品の
動き、陰極電流密度1A/dm2、露出時間10分。
20 g of palladium as (Pd( NH3 ) 4 ) SO4 , 10 g of nickel as (Ni( NH3 ) 6 ) Cl2 , to set up sufficient conductivity in the electrolyte ( NH4 ) 2SO4 or NH4 50 g of supporting electrolyte as Cl, NH 4 OH to set the PH value to 8.5, water to make a bath of 1, 2.5 g of sodium allylsulfonate, 0.1 g of N-pyridinium propylsulfobetaine, during electrodeposition. bath temperature 30°C, slight article movement, cathode current density 1A/dm 2 , exposure time 10 minutes.

ブラシをかけたしんちゆう板上に、明白な平坦
度なしにかつ阻害現象なしに光沢のあるパラジウ
ム・ニツケル層が得られた。硝酸試験に良好に耐
えた。
A shiny palladium-nickel layer was obtained on the brushed steel plate without any obvious flatness and without any inhibition phenomena. Withstood the nitric acid test well.

Claims (1)

【特許請求の範囲】[Claims] 1 浴が、5ないし30g/の範囲のパラジウム
含有量および同様に5ないし30g/の範囲のニ
ツケル含有量、および晶溶体形成を改善する添加
物を含むパラジウムおよびニツケルアミンの水溶
液から成り、この水溶液において、電気的に析出
される合金が30ないし90重量%のパラジウム含有
量を有するように、パラジウムとニツケルの比が
設定されている、装飾的および工業的な被覆のた
めパラジウム/ニツケル合金を電気的に析出する
浴において、晶溶体形成を改善するため添加物
が、ナトリウムビニルスルホナート、ナトリウム
アリルスルホナート、ナトリウムプロピンスルホ
ナート、ナトリウムメタクリルスルホナート、N
−ピリジニウムプロピルスルホベタイン、N−ピ
リジニウムメチルスルホベタイン、N−ベンジル
ピリジニウム−2−エチルスルホン酸ナトリウム
塩のうち1つの物質またはこれら物質の混合物か
ら成ることを特徴とする、パラジウム/ニツケル
合金を電気的に析出する浴。
1. The bath consists of an aqueous solution of palladium and nickel amine with a palladium content in the range from 5 to 30 g/ and a nickel content likewise in the range from 5 to 30 g/, and an additive which improves crystal solution formation; In the electroplating of palladium/nickel alloys for decorative and industrial coatings, the ratio of palladium to nickel is set such that the electroplated alloy has a palladium content of 30 to 90% by weight. In order to improve crystalline solution formation, additives may be added to the baths where sodium vinylsulfonate, sodium allylsulfonate, sodium propynesulfonate, sodium methacrylsulfonate, N
- a palladium/nickel alloy, characterized in that it consists of one of the following substances: pyridinium propylsulfobetaine, N-pyridinium methylsulfobetaine, N-benzylpyridinium-2-ethylsulfonic acid sodium salt, or a mixture of these substances; bath to precipitate.
JP57032483A 1981-03-06 1982-03-03 Bath for electrically depositing palladium/nickel alloy Granted JPS5816089A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3108508.3 1981-03-06
DE3108508A DE3108508C2 (en) 1981-03-06 1981-03-06 Bath for the electrodeposition of a palladium / nickel alloy

Publications (2)

Publication Number Publication Date
JPS5816089A JPS5816089A (en) 1983-01-29
JPS6112038B2 true JPS6112038B2 (en) 1986-04-05

Family

ID=6126504

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57032483A Granted JPS5816089A (en) 1981-03-06 1982-03-03 Bath for electrically depositing palladium/nickel alloy

Country Status (14)

Country Link
JP (1) JPS5816089A (en)
AT (1) AT377013B (en)
AU (1) AU535531B2 (en)
BE (1) BE892344A (en)
BR (1) BR8201157A (en)
CA (1) CA1176204A (en)
CH (1) CH649318A5 (en)
DE (1) DE3108508C2 (en)
FR (1) FR2501243B1 (en)
GB (1) GB2094836B (en)
IT (1) IT1150627B (en)
NL (1) NL8200908A (en)
SE (1) SE8201299L (en)
ZA (1) ZA821367B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3443420A1 (en) * 1984-11-26 1986-05-28 Siemens AG, 1000 Berlin und 8000 München Electroplating bath for the rapid deposition of palladium alloys
US4628165A (en) * 1985-09-11 1986-12-09 Learonal, Inc. Electrical contacts and methods of making contacts by electrodeposition
DE3809139A1 (en) * 1988-03-18 1989-09-28 Lpw Chemie Gmbh USE OF A PALLADIUM / NICKEL ALLOY LAYER AS AN INTERMEDIATE LAYER BETWEEN A NON-CORROSION-RESISTANT OR LESS-CORROSION-RESISTANT METAL BASE MATERIAL AND A COATING APPLIED BY THE PVD PROCESS
GB2242200B (en) * 1990-02-20 1993-11-17 Omi International Plating compositions and processes
US5415685A (en) * 1993-08-16 1995-05-16 Enthone-Omi Inc. Electroplating bath and process for white palladium
EP0916747B1 (en) * 1997-11-15 2002-10-16 AMI Doduco GmbH Electrolytic bath for the deposition of palladium and palladium alloys
CN113699565B (en) * 2021-09-28 2023-07-04 万明电镀智能科技(东莞)有限公司 High corrosion resistance palladium-nickel alloy plating layer, electroplating method thereof and palladium-nickel plating layer electroplating liquid

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2328243A (en) * 1941-04-28 1943-08-31 Posture Res Corp Chair
US2800442A (en) * 1955-10-04 1957-07-23 Udylite Res Corp Electrodeposition of nickel
JPS4733176B1 (en) * 1967-01-11 1972-08-23
US3730854A (en) * 1971-10-29 1973-05-01 Basf Ag Stabilized aqueous solutions of unsaturated aliphatic sulfonic acids or salts thereof
CH572989A5 (en) * 1973-04-27 1976-02-27 Oxy Metal Industries Corp
GB1553503A (en) * 1976-05-14 1979-09-26 Oxy Metal Industries Corp Electrodeposition of bright nickel-iron deposits
FR2364980A1 (en) * 1976-09-17 1978-04-14 Parker Ste Continentale Electrodeposition of palladium alloys for jewellery - or protective coatings, using bath contg. organic cpds. and brighteners
DE2825966A1 (en) * 1978-06-14 1980-01-03 Basf Ag ACID GALVANIC NICKEL BATH, WHICH CONTAINS SULFOBETAINE AS A GLOSSY AND LEVELING AGENT

Also Published As

Publication number Publication date
JPS5816089A (en) 1983-01-29
IT1150627B (en) 1986-12-17
BR8201157A (en) 1982-11-23
GB2094836B (en) 1984-12-05
CA1176204A (en) 1984-10-16
AU8104982A (en) 1982-09-09
DE3108508C2 (en) 1983-06-30
IT8219992A0 (en) 1982-03-05
FR2501243B1 (en) 1988-05-27
AU535531B2 (en) 1984-03-29
GB2094836A (en) 1982-09-22
AT377013B (en) 1985-01-25
DE3108508A1 (en) 1982-09-16
ATA82182A (en) 1984-06-15
SE8201299L (en) 1982-09-07
BE892344A (en) 1982-07-01
ZA821367B (en) 1983-01-26
FR2501243A1 (en) 1982-09-10
CH649318A5 (en) 1985-05-15
NL8200908A (en) 1982-10-01

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