Gold Plating Price

Gold plating price depend on the plating area and how much the gold material used by them. Because the price of material is very expensive usually professional plating company have both small and large part facility service. Large part facility can be various sized barrels, racks and wiring purposes.

Gold is a very interest lustrous color and gold is one of the noble metal so it can stand for long time, which mean that it will not oxidized in air, so its electrical conductivity stays uniform over long period of time. Gold plating have good corrosion resistance, good solder ability, and if alloyed with cobalt will very good wear resistance. Because of this characteristic gold often use for electrical switch contact on certain important appliance, connector pins and barrels.

Several type of gold plating with variate hardness, the grade can be A, B, C or D. Plating with composition of 99.7% of gold minimum have hardness grade A, B or C.  Plating with content of 99.0% of gold have hardness grade B, C or D, that usually use for wear resistant material. Plating with gold content of 99.9% of gold will result hardness grade A only. Material with this plating use in semiconductor component, nuclear engine, thermocomponent bonding, and high temperature application.

Bright Chrome

Bright Chrome is a silvery blue metal, lustrous, hard, metallic coating layer. With its bold, chrome complements are sleek and contemporary interior. Widely used for bathrooms fixtures and fittings. In its polished version, it has a mirror like finish that reflects light and brightens up any space.

 

The Properties of Bright Chrome Coating:

• the layer have trivalent Chrome coating
• coated chrome have silvery blue color
• have good corrosion resistance
• have tarnish resistant
• show excellent wear characteristics
• can be capacity to accommodate up to 8ft long pieces

Many produce method of bright chrome:
- bright chrome produce with polished
- bright chrome produce with satin (clear coated with protection inhibitor, gloss lacquer and semi lacquer)
- bright chrome produce with matt (clear coated with gloss lacquer and semi lacquer)
- bright chrome produce with pearlite (clear coated with protection inhibitor, gloss lacquer and semi lacquer)

 

Thickness of bright chrome should be have minimum coating of 0.1 micro meter and maximum coated layer by 1.00 micro meter.

The example product use bright Chrome:

Vacuum Metalizing

To make chrome coating on plastic is not a simple process, this coating process in industry is not use a chromium plating as usual done on metal or steel. They use vacuum metalizing process on chamber with vacuum pressure. Metal evaporate inside vacuum chamber which then bonds to the desired parts to achieve a uniform metalized layer, like plastic.

Thermal evaporation, known as vacuum metalizing, is the most common process used to apply metal alloys under vacuum pressure. This process have many applied to decorative bright chrome and metalllic finished, highly reflective coatings for light reflectors, heat shielding, vapor barriers and many others.

To do this process, many industrie build a custom tooling fixtures to hold mask parts during the vacuum metalizing and painting process done. For most decorative and reflective application it is necessary to apply a special formulated primer or basecoat to promote adhesion and to provide a smooth surface, assuring a high quality surface for the metalizing or finish paint steps.

All coating is applied by high volume low pressure spray guns by three different methods including, six axis robotic paint cells, automatic reciprocating paint cells, or by hand for low volume and prototypes.

Cylinder Coating

Cylinder can be coated by special electroplating tools. The current needed for this coating should be high enough in order can work coat to all the surface of cylinder block. Variety cylinder car engine block usually coated separately with other separate part that need of precise size like bore dimensions. To handle this special job, it should be experience in engineering and plating a wide range of surface and products.

Electroplating require apply in repair and maintenance of cylinder block and cylinder heads for variety of engines including motorcycles, dirt bikes, watercraft and race cars. Other part repair and maintenance that need electroplating finished work like in aerospace protection barriers, harness, corrosion prevention and decorative application. For cylinder block and cylinder head usually use chromium plating applied.

Electroplating Industry

The main problem on electroplating industries are how to control and prevent their waste that produce together with their product. Several components are dissolved on the solution and should be discharge because can’t use anymore as plating materials. The soluble material mostly include on hazardous waste and should be control in proper manner, or must use right waste treatment. Beside liquid waste this industries also produce solid waste and gas waste during the process running. All those kind of waste usually dangerous to human health. People who work on this industries should be protected by right and fulfill of health requirement. If there is deviation to this requirement it can lead of health disorder.

Pollution Control and Prevention
Plating industry may have different combinations of wide variety of processes and there are many ways to improve their prevention or pollution control. Some way that may apply to plating industry as follows:

Changes the Process

• Replace of cadmium substance with high quality corrosion resistant on zinc plating. Use cyanide free systems on zinc plating where appropriate. On cadmium plating can use bright chloride, high alkaline baths or other alternatives, but use complex agent of cyanides may cause problems in waste water treatment for they may result in the release of heavy metals.
• Use trivalent chrome instead of hexavalent chrome for chromium plating.
• Give preference to water based surface cleaning agent, where feasible, instead of organic cleaning agents, because of of those materials are considered toxic.

Reduction in Drag out and Wastage

• Minimize drag-out by affective draining of bath solutions from plated part by measures such as drain holes in bucket type.
• Allow dripping time of at least 10 to 20 seconds before rinsing
• Use fog spraying of parts while dripping
• Maintain the density, viscosity and temperature of the baths to minimize dragouts.

Many other ways can apply for environmental consideration, because plating industry have a big contribute to the pollution if not control in a proper ways.