Vàng Cứng Auruna 5400 Hợp Kim Coban Cho Linh Kiện Điện Tử
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For Depositing Uniformly Bright Coatings
AURUNA® 5400 the weakly acidic electrolyte deposits yellow, uniform bright hard gold coatings. The newly balanced brightener system of the electrolyte enables the operation in a very wide current density working range and allows a variable gold content at the same time. Due to the usage of special chemical components, the AURUNA® 5400 is equally suitable for rack and barrel application.
The deposited coatings are characterized by low porosity and an increased abrasion resistance, compared to coatings deposited in AURUNA® 539. Furthermore contacts coated with AURUNA® 5400 exhibit a low and long-time stable contact resistance and an excellent solderability. As well coatings up to 10 μm can be crack-free depositied in the electrolyte.
Advantages
- Very wide operating current density range
- For technical and decorative applications
- High corrosion and abrasion resistance
- Low, stable contact resistance
- Classification according to ASTM B 488-01: Type I - II, grade C -D
Applications
- Contact pins, contact springs, contact plugs
- Contact materials
- Slip rings
Umicore is a global materials technology and recycling group, with about 10,000 employees and a turnover of € 10.4 billion in 2015. Umicore generates the majority of its revenues and dedicates most of its R&D efforts to clean technologies, such as emission control catalysts, materials for rechargeable batteries and recycling. Umicore’s overriding goal of sustainable value creation is based on an ambition to develop, produce and recycle materials in a way that fulfils its mission: materials for a better life.
