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#150 Coating Characteristics of Functional Plating (Industrial plating)

Category : Electroplating
February15, 2013

Characteristics of functional platings (Industrial platings) are as follows.

Plate
coating		AppearanceCorrosion
Resistance		Wear
resistance		Other
characteristics
Copper
plating		　　　Build-up, Secondary machinability, Electro-conductiveness, Thermal conductiveness, Solderability, Adhesiveness, Antibacterial property
NickelHighHighHighBuild-up, High frequency characteristics, Light reflectivity, Weatherability, Solderability, Chemical resistance
Engineering
chrome plating		Very HighHighVery HighHardness, Lubricity, Build-up, De-molding characteristics, Low friction coefficient, Heat resistance, Porosity, Non-adhesiveness, Chemical resistance, Printing durability
Black
chrome		Very HighVery High　Non-reflectiveness, Selective Selective light absorption characteristics, Heat absorption characteristics
Gold
・Gold alloy		Very HighHigh　Electro-conductiveness, High frequency characteristics, Low contact resistance, Light reflectiveness, Thermal conductiveness, Solderability, Sea water corrosion prevention
SilverHigh　　Lubricity, Electro conductiveness, High frequency characteristics, Heat resistance, Thermal conductiveness, Solderability, Antibacterial
RhodiumVery HighHighVery HighHHardness, Low contact resistance, Chemical resistance
Platinum　HighHighChemical resistance
Palladium　　　Low contact resistance, Chemical resistance
Ruthenium　　HighHardness, Low contact resistance
TinHighHigh　Secondary machinability, Electro conductiveness, Solderability, Adhesiveness, Chemical resistance
Tin
・Lead alloy		　High　Lubricity, Secondary machinability, Electro conductiveness, High frequency characteristics, Solderability, Adhesiveness, Chemical resistance
Lead　High　Lubricity, Secondary machinability, Chemical resistance, Contamination prevention
Indium　　　Lubricity, Resistance characteristics
Iron　　　Build-up, Secondary machinability
Dispersion
plating		　　Very HighLubricity, De-molding characteristics, Low wear coefficient, Non-adhesiveness, Adhesiveness
Electrocasting　　　Dimensional accuracy, Build-up, High frequency characteristics, Realism repeating ability

■Explanation of the characteristics
1. Build-up: Thick plate coatings that can compensate for inadequate dimensions.
2. High frequency characteristics: Conducts high frequency AC well. Good high-frequency current wave guiding properties.
3. De-molding characteristics: Easy to extract products from diecast and resin molds.
4. Non-adhesiveness: A characteristic that makes things not sticky. Promotes de-molding characteristics.
5. Lubricity: Slipperiness. Use of lubricants reduces friction and prevents wear.
6. Low contact resistance: Small contact resistance at electrical connections.
7. Porosity: A characteristic that possesses many minute pores on the plate coating surfaces. It is said to be "Porous".
8. Printing durability: Characteristics that retains ink and dye on printing plates well, and able to print evenly.
9. Adhesiveness: A characteristic that improves adhesion power of the plate coatings and polymer substances (rubber, plastics, etc.).
10. Realism repeating ability: A characteristic that can copy signals of CD stamper, and etc. with high fidelity.
11. Electro conductivity: Conducts electricity well due to low electrical resistance. It can shield electromagnetic waves.

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