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BIENVENIDOS A NUESTROS PRIMEROS (2) CATALOGOS DE CIRSTALES SWAROVSKI Y ORO LAMINADO BRASILERO CON BAÑO ORO 18KTS.
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CATALOGO CRISTALES SWAROVSKI
CATALOGO ORO LAMINADO BRASILERO
QUÉ ES EL ORO LAMINADO? WHAT IS GOLD PLATED?
GOLD PLATING:
Gold plating is a method of depositing a thin layer of gold onto the surface of another metal, most often copper or silver, by chemical or electrochemical means.
Mechanical or chemical affixing of thin gold foils onto the surface of objects is instead known as gilding.
Plating is the general name of surface-covering techniques in which a metal is deposited onto a conductive surface. Plating is indispensable as a corrosion inhibitor for the manufacture of computers, mobile phones, and electronic devices as well as other uses such as solderability, hardness, wearability, friction loss, paint adhesion, conductivity, shielding, etc. Moreover, it is a key technology for the development of new machines. It is also used for decoration, for example in jewelry, typically to provide a silver or gold exterior.
Thin-film deposition techniques have accomplished plating on scales as small as the width of an atom, so it is appropriate to call some plating applications nanotechnology.
There are several plating methods. For example, in one method, a solid surface is covered with a metal sheet, and then heat and pressure are applied to fuse them together (a version of this technique is called Sheffield plate). Other plating techniques include vapor deposition under vacuum, sputter deposition, and methods using vacuum conditions or gas. Recently, however, only plating techniques using a liquid tend to be called "plating". Metallizing refers to the process of coating metal on non-metallic objects.
GOLD:
Gold (pronounced /ˈɡoʊld/) is a chemical element with the symbol Au (from the Latin aurum, meaning shining dawn) and atomic number 79. It is a highly sought-after precious metal which, for many centuries, has been used as money, a store of value and in jewelry. The metal occurs as nuggets or grains in rocks, underground "veins" and in alluvial deposits. It is one of the coinage metals. Gold is dense, soft, shiny and the most malleable and ductile of the known metals. Pure gold has a bright yellow color traditionally considered attractive.
GILDING:
Gilding is the art of applying a thin layer of gold or something simulating gold to a surface. Products employed may be real gold leaf ranging in karats from 9 (white gold) up to 24; imitation leaf--composition gold, Dutch metal leaf, aluminum leaf, copper leaf; variegated leaf, mica powders; etc.
Types of gold plating:
There are several types of gold plating used in the electronics industry:
Soft, pure gold plating is used in semiconductor industry. The gold layer is easily soldered and wire bonded. Its Knoop hardness ranges between 60-85.
The plating baths have to be kept free of contamination.
Bright hard gold on contacts, with Knoop hardness between 120-300 and purity of 99.7-99.9% Au. Often contains a small amount of nickel and/or cobalt; these elements interfere with die bonding, therefore the plating baths can't be used for semiconductors.
Bright hard gold on printed circuit board tabs is deposited using lower concentration of gold in the baths. Usually contains nickel and/or cobalt as well. Edge connectors are often made by controlled-depth immersion of only the edge of the boards.
Soft, pure gold is deposited from special electrolytes. Entire printed circuit boards can be plated. This technology can be used for depositing layers suitable for wire bonding.
Jewelry:
Gold plating of silver is used in the manufacture of jewelry. Like copper, silver atoms diffuse into the gold layer, causing slow gradual fading of its color and eventually causing tarnishing of the surface. This process may take months and even years, depending on the thickness of the gold layer. A barrier metal layer is used to counter this effect. Copper, which also migrates into gold, does so more slowly than silver. The copper is usually further plated with nickel.
A gold-plated silver article is usually a silver substrate with layers of copper, nickel, and gold deposited on top of it.
FUENTE: SOURCE:
GOLD-PLATED
SUGERENCIAS PARA MANTENER SU JOYERIA, EN ÓPTIMO ESTADO:
* Guarde las piezas en la bolsa original para evitar que se rocen entre si.
* Lave las piezas ocasionalmente con jabón suave y agua caliente. Séquelas inmediatamente muy bien con un paño suave, o si lo prefiere, utilice el secador de cabello a temperatura media.
* Limpie ocasionalmente el pin de los aretes con alcohol.
* No utilice productos químicos para limpiar las joyas.
* Póngase las piezas de joyería después de vestirse y quíteselas antes de hacer deporte, bañarse o ir a la playa.
* Para evitar la decoloración, evite el contacto de sus joyas con perfumes, lacas, cremas, lociones, cosméticos y agua salada.
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