Platings > Hard Gold Plating
Hard Gold Plating
![sample of Hard Gold Plating](imgs/pic_hard_gold_plating.png)
Hard gold plating contains a small amount of hardener.
Our hard gold plating has a cobalt content of 1 to 3 wt% in order to increase the hardness compared to bright gold plating, and has a high hardness of Hv190 to 250.
Therefore, contact resistance of the hard gold plating deposit is higher than that of pure gold plating or bright gold plating.
Even with high-hardness, the hard gold plating of Mitsuya is superior in wear resistance, electric conductivity, soldering characteristics and low contact resistance.
Hard gold plating is required particularly in the following components:
・The sliding parts that require conductivity and hardness.
・The slip ring that require conductivity and sliding property.
![Contact resistance of Bright gold and Hard gold are almost the same](imgs/fig_hard_gold_plating.jpg)
Contact resistance of Bright gold and Hard gold are almost the same
Functional property
- Abrasion & Wear Resistance
- Low Contact Resistance
- Electrical Conductivity
Availability details
mass production | yes |
---|---|
process type ※ | B,R,M |
under plating | Ni |
prototype | yes |
experimental trial | yes |
regular chemical stock | yes |
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- B:barrelR:rackM:mesh basketH:reel to reel