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JP2003293188A - Nickel plating film - Google Patents

Nickel plating film

Info

Publication number
JP2003293188A
JP2003293188A JP2002105956A JP2002105956A JP2003293188A JP 2003293188 A JP2003293188 A JP 2003293188A JP 2002105956 A JP2002105956 A JP 2002105956A JP 2002105956 A JP2002105956 A JP 2002105956A JP 2003293188 A JP2003293188 A JP 2003293188A
Authority
JP
Japan
Prior art keywords
nickel plating
plating film
film
zinc
heat treatment
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
Application number
JP2002105956A
Other languages
Japanese (ja)
Inventor
Kazuo Kasai
一雄 河西
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.)
Sumitomo Metal Mining Co Ltd
Original Assignee
Sumitomo Metal Mining Co Ltd
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 Sumitomo Metal Mining Co Ltd filed Critical Sumitomo Metal Mining Co Ltd
Priority to JP2002105956A priority Critical patent/JP2003293188A/en
Publication of JP2003293188A publication Critical patent/JP2003293188A/en
Pending legal-status Critical Current

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  • Electroplating Methods And Accessories (AREA)

Abstract

(57)【要約】 【課題】熱処理の影響を受けず、めっき皮膜の脆化のな
い耐熱特性の良いニッケルめっき皮膜を提供する。 【解決手段】電気めっきを行いその後熱処理して得られ
るニッケルめっき皮膜において、皮膜中に亜鉛を0.5
wt%から2.5wt%含有させる。
(57) [Summary] [Problem] To provide a nickel plating film which is not affected by heat treatment and has good heat resistance characteristics without embrittlement of the plating film. Kind Code: A1 In a nickel plating film obtained by performing electroplating and then heat treatment, zinc is contained in the film in an amount of 0.5%.
wt% to 2.5 wt%.

Description

【発明の詳細な説明】 【0001】 【発明の属する技術分野】本発明は、耐熱特性に優れた
ニッケルめっき皮膜に関する。 【0002】 【従来の技術】電気ニッケルめっきは、めっき浴の安定
性、作業の容易さから装飾、防食関連や電子部品関連な
ど様々な用途で用いられており、耐食性、柔軟性、硬度
などの要求に応じて任意の皮膜特性を容易に得ることが
できるものである。具体的な皮膜特性のコントロールに
は、めっき浴中に種々の添加剤を添加することが一般的
で、添加剤の種類や組み合わせによってめっき外観、皮
膜特性を操作している。特に、皮膜の硬度については添
加剤の添加量やめっき条件により様々な硬度のニッケル
めっき皮膜を得ることが可能である。 【0003】 【発明が解決しようとする課題】しかし、ニッケルめっ
き皮膜の硬度は、常温では安定しているが熱処理したり
高温状態に曝されると皮膜が脆化したり、アニール効果
により硬度の低下を招く等の問題があった。 【0004】したがって、上記課題を解決するために、
本発明の目的は、電気めっきから得られるニッケルめっ
き皮膜において、皮膜中に亜鉛を0.5wt%から2.
5wt%含有させたことを特徴とする熱持性の良いニッ
ケルめっき皮膜を提供するものである。 【0005】 【課題を解決するための手段】前述の目的を達成するた
めに、本発明のニッケルめっき皮膜は、電気めっきを行
いその後熱処理して得られるニッケルめっき皮膜におい
て、皮膜中に亜鉛を0.5wt%から2.5wt%含有
させることを特徴とするものである。 【0006】 【発明の実施の形態】本発明は、電気めっきを行いその
後熱処理して得られるニッケルめっき皮膜において、脆
化防止と皮膜の硬度の低下防止など熱特性の良いもので
ある。 【0007】具体的には、電気ニッケルめっきにおい
て、めっき浴中に微量の亜鉛を添加してめっきを行えば
よく、めっき浴は、ワット浴、スルファミン酸浴などの
いずれでもよく、浴の種類には特に限定されない。 【0008】また、添加される亜鉛成分も塩化亜鉛、硫
酸亜鉛など、めっき液に対して可溶であれば特に限定さ
れない。 【0009】 【実施例】次に、本発明の実施例を説明する。 (実施例1)以下の表1に示す浴組成および条件でステ
ンレス板に電気ニッケルめっきを行った。その後、めっ
き皮膜をステンレス板から剥離し、電気炉を用いて35
0°Cで2時間の熱処理を行いめっき皮膜の硬度を調べ
た。 【表1】 【0010】図1にニッケルめっき皮膜中の亜鉛含有量
と皮膜硬度の関係を示す。この図1からニッケルめっき
皮膜中の亜鉛含有量が0.5%未満では熱処理の有無で
皮膜硬度の値に大きな差が見られる。また、亜鉛含有量
が2.5%越えると熱処理後の皮膜硬度は急激に低下し
ていることが分かる。 【0011】さらに、ニッケルめっき皮膜の脆化につい
ては、亜鉛含有量が2.5%までは柔軟性は損なわれて
いなかった。これらのことから,ニッケルめっき皮膜中
の亜鉛含有量が0.5%以上から2.5%の範囲ではニ
ッケル皮膜が受ける熱処理による皮膜の硬度低下や皮膜
の脆化が防止できる。 【0012】 【発明の効果】以上述べたように,本発明を用いること
で熱処理の影響を受けず、めっき皮膜の脆化のない耐熱
特性の良いニッケルめっき皮膜を得ることができる。
Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nickel plating film having excellent heat resistance. 2. Description of the Related Art Electro-nickel plating is used for various purposes such as decoration, anti-corrosion and electronic parts because of stability of plating bath and easiness of work. Arbitrary film characteristics can be easily obtained as required. To specifically control the film properties, it is common to add various additives to the plating bath, and the plating appearance and film properties are controlled by the type and combination of the additives. In particular, regarding the hardness of the film, it is possible to obtain nickel-plated films of various hardnesses depending on the amount of the additive and the plating conditions. However, the hardness of the nickel plating film is stable at room temperature, but the film becomes brittle when heat-treated or exposed to a high temperature state, or the hardness decreases due to the annealing effect. And other problems. Therefore, in order to solve the above problems,
An object of the present invention is to provide a nickel plating film obtained from electroplating, in which zinc is contained in the coating in an amount of 0.5 wt% to 2.%.
An object of the present invention is to provide a nickel plating film having a good heat holding property, characterized by containing 5 wt%. [0005] In order to achieve the above-mentioned object, a nickel plating film of the present invention is a nickel plating film obtained by electroplating and then heat-treating, wherein zinc is contained in the coating in an amount of 0%. It is characterized by containing from 2.5 wt% to 2.5 wt%. DETAILED DESCRIPTION OF THE INVENTION The present invention provides a nickel plating film obtained by electroplating and then heat-treating, which has good thermal characteristics such as prevention of embrittlement and prevention of decrease in hardness of the film. [0007] Specifically, in electro-nickel plating, plating may be performed by adding a trace amount of zinc to a plating bath. The plating bath may be any of a watt bath and a sulfamic acid bath. Is not particularly limited. The zinc component to be added is not particularly limited as long as it is soluble in the plating solution, such as zinc chloride and zinc sulfate. Next, an embodiment of the present invention will be described. (Example 1) Electroless nickel plating was performed on a stainless steel plate under the bath composition and conditions shown in Table 1 below. After that, the plating film was peeled off from the stainless steel plate, and the plating film was removed using an electric furnace.
Heat treatment was performed at 0 ° C. for 2 hours to examine the hardness of the plating film. [Table 1] FIG. 1 shows the relationship between the zinc content in the nickel plating film and the film hardness. From FIG. 1, when the zinc content in the nickel plating film is less than 0.5%, there is a large difference in the film hardness value between the presence and absence of the heat treatment. Also, it can be seen that when the zinc content exceeds 2.5%, the hardness of the film after the heat treatment sharply decreases. Regarding embrittlement of the nickel plating film, flexibility was not impaired up to a zinc content of 2.5%. From these facts, when the zinc content in the nickel plating film is in the range of 0.5% or more to 2.5%, it is possible to prevent a decrease in hardness of the film due to the heat treatment applied to the nickel film and embrittlement of the film. As described above, by using the present invention, it is possible to obtain a nickel plating film which is not affected by the heat treatment and which has good heat resistance without the brittleness of the plating film.

【図面の簡単な説明】 【図1】図1は熱処理の有無に応じた亜鉛含有量と硬度
との関係を示すグラフである。
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a graph showing the relationship between zinc content and hardness depending on the presence or absence of heat treatment.

Claims (1)

【特許請求の範囲】 【請求項1】電気めっきを行いその後熱処理して得られ
るニッケルめっき皮膜において、皮膜中に亜鉛を0.5
wt%から2.5wt%含有させることを特徴とするニ
ッケルめっき皮膜。
Claims: 1. A nickel plating film obtained by electroplating and then heat treatment, wherein zinc is contained in the film in a thickness of 0.5%.
A nickel plating film characterized by containing from 2.5% by weight to 2.5% by weight.
JP2002105956A 2002-04-09 2002-04-09 Nickel plating film Pending JP2003293188A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002105956A JP2003293188A (en) 2002-04-09 2002-04-09 Nickel plating film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002105956A JP2003293188A (en) 2002-04-09 2002-04-09 Nickel plating film

Publications (1)

Publication Number Publication Date
JP2003293188A true JP2003293188A (en) 2003-10-15

Family

ID=29243189

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002105956A Pending JP2003293188A (en) 2002-04-09 2002-04-09 Nickel plating film

Country Status (1)

Country Link
JP (1) JP2003293188A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI617672B (en) * 2015-11-06 2018-03-11 Sanno Co Ltd Porous nickel film and manufacturing method thereof
JPWO2021177231A1 (en) * 2020-03-03 2021-09-10

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI617672B (en) * 2015-11-06 2018-03-11 Sanno Co Ltd Porous nickel film and manufacturing method thereof
JPWO2021177231A1 (en) * 2020-03-03 2021-09-10
JP7095810B2 (en) 2020-03-03 2022-07-05 日本製鉄株式会社 Ni-plated steel sheet and its manufacturing method

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