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​受付時間 9:00~18:00 
直通電話 090-6819-5609

mail:connection.fukui@gmail.com

銀めっき

Silver plating details

Silver melting point 965 ° C., a density 10.5 g / cm @ 3, a Vickers hardness 60 to 100, with a metal having excellent ductility of the face-centered cubic structure, the most excellent electrical conductivity 1.60μΩcm in metal, the thermal conductivity of 427 W / m ・ It has k (at25 ℃).

Also, in the visible light region, only silver shows a reflectance close to 100%. It has excellent corrosion resistance, low toxicity, and antibacterial properties .

In this way, silver has a wide variety of excellent properties, so there are many applications for each property.

Due to the soaring price of gold, silver plating has come to be used as an alternative to gold plating, but silver tends to diffuse and permeate into semiconductor devices over time (migration), and is vulnerable to oxidation and sulfide. , It is difficult to replace gold for parts that require high reliability.

It is a noble metal with a standard electrode potential of + 0.799V, and has been used for surface treatment of ornaments and tableware for a long time because of its excellent stability and noble silvery white color. (There is also a theory that silver and silver-plated tableware were used to prevent poisoning of aristocrats because silver turns black when it comes into contact with the poisonous acid of this era.)

Silver has been used in electrical and electronic components because it has the best electrical and thermal conductivity of any metal.

In addition, because of its lubricity, it is used in bearings and metal bearings for power generation, ships, jet engines, trains, automobiles, etc.

It is also used in medical equipment, optical equipment, etc. due to its antibacterial properties and optical characteristics, and it is used as a reflector for LED lighting by utilizing the property that silver reflects nearly 100% of light with a wavelength of 300 to 780 nm. It is being deployed.

Processable material

Iron, stainless steel, aluminum, copper / copper alloys and other metal materials,

For resin materials, please use the inquiry form below.

Please contact us.

Partial masking of the product is possible.

Polishing process is also available.

Processable size

If it is a plate shape, it can process up to 100 x 100 mm size.

Please contact us for size details.

Processable size

If it is a plate shape, it can process up to 100 x 100 mm size.

Please contact us for size details.

Processable size

If it is a plate shape, it can process up to 100 x 100 mm size.

Please contact us for size details.

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​お電話でのお問い合わせはこちら
 

  090-6819-5690

 

​受付時間 9:00〜18:00

お問い合わせフォームはこちら

 

 
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ご質問回答
  01  ​

Q. Is it possible to silver-plat the Kovar material?

A. Silver plating on Kovar material is available. There are decorative and industrial silver plating, but we use industrial silver plating.

  02

Q. There are pits in the silver plating. What could be the cause?

A. There are various causes of pits, but it is necessary to check with a magnifying glass.

The round pits are caused by oil, the teardrop-shaped pits are caused by hydrogen gas during the plating reaction, and if foreign matter is present in the center of the pit, the foreign matter is the cause.

Since the countermeasures are different for each, it is necessary to confirm the cause.

  03

Q. I would like to apply silver plating to the aluminum material (A5052). Is this possible?

The film thickness should be 5 μm or more.

A. Although it is silver-plated on aluminum material, it cannot be directly silver-plated, so after nickel-plating the base.

If silver plating is acceptable, it is possible.

There is no problem with nickel plating on the base of about 5 μm and silver plating of 5 μm or more.

  04

Q. If HPM1 (free-cutting high-hardness pre-hardened steel) can be silver-plated 15 μm, please give us a quote.

A. We can make an estimate because silver plating is available for free-cutting high-hardness pre-hardened steel.

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Connection Co., Ltd.

Please feel free to contact us for plating, coating, polishing, heat treatment, etc.

Consultations and quotations are free.

​4-202-5 Shizugaoka, Fukui City, Fukui Prefecture 910-3635 (Japan)

​Reception hours 9: 00-18: 00 

Direct phone 090-6819-5609

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