Silver knowledge introduced

1, the basic knowledge of silverA, silver for precious metals is one of the symbols of Ag. Silver silver-white, the relative density of 10.49, melting point (961 ° C), do not dissolve in alkalis and most organic acids, soluble in nitric acid and hot sulfuric acid and sulfur dioxide compounds into the brown of Ag2S. 925 silver is 92.5% silver 7.5% copper was added, making the hardness and luster of silver, has improved.The fineness of the silver, with the 1000 scores.Fine silver: silver containing not less than 990% mark for fine silver or S990, silver 990.925 silver: silver not less than 925% mark for the S925 or silver 925.2, silver jewelry processing◆ engraved, chased technology: This is the ancient technique of a common and foreign gold and silver processing. Thin gold and silver hammer, chisel engraving and then chisel out the effect of relief, or chisel on the rich ornamentation. In general, the larger the area shown by the effect of the more abundant.Melting method: This technique is more common in Europe, only for silver production. The method is a silver uniform and rapid thermal conductivity of the physical characteristics of the use of fire blowing the thin silver film is heated to be molten moment, dropping the heat, the silver piece on the uniform wrinkle. Jewelry made with this material a strong decorative effect, a very natural flavor. Other droplet-like effect of the ornaments, silver production is also far better than gold, and very charm.◆ Japanese wood grain metal: the main material is silver, manufacturing techniques are very interesting, artistic and decorative effects are very strong. The silver content of copper and silver alloys, nickel-silver alloy, copper, brass, copper (sometimes with a small amount of gold), etc., layers overlap welding, then rub handling, re-flattening the metal surface there will be a different color of the texture effect.◆ black silver inlaid technology: This is a silver alloy decoration technology. Such techniques are widely used in the Middle East, Russia, Thailand. Black silver jewelry with engraved chisel engraved silver design and then fill in the pattern of black pure copper and silver-lead alloy, polished to reveal the patterns of silver, black and white contrast is strong, revealing the extremely dignified.Advantage of the 3, silver jewelryA, silver jewelry styles, affordable, able to keep up with fashion, easy and clothing.B, silver jewelry to overcome the high prices of other precious jewelry and man-made craft jewelry low value of the two major disadvantages will be affordable, exquisite style, Seiko secret agents, tasteful rolled into one that can truly meet consumers' fashion needs, the formation of new fashion trend.4, silver jewelry Category4.1, according to the species classification: hair ornaments, earrings, necklaces, jewelery, foot jewelry and apparel basic is divided into six major categories.◆ hair accessories include: Bob, blur, and so on.◆ earrings include: earrings, earrings, ear wire, ear hanging.◆ pendant include: necklaces, pendants, necklaces.◆ jewelry include: rings, bangles, bracelets.◆ Foot ornaments include: anklet, Jiaolian.◆ clothing refers to clothing accessories, including flower collar, tie clips, pectoral, and cufflinks.4.2 Process Category: basically divided into the class of satin, the colors of silver (silver), old silver, Thai silver.4.3, according to a precious stone Category: classified depending on the inlaid with precious stones, generally inlaid with precious stones: zircon, garnet, agate, crystal stones, Marcasite, turquoise, amber, shells, meteorites, etc..

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