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Silver adorns the great summary of knowledge (one)

Silver adorns the great summary of knowledge


A silver decorations are distinguished
18KGP, 23KGP, 925 real meaning
At present, the artificial ornaments on the market, more and more, and more and more exquisite. Some even can mix the spurious with the genuine, price genuine thing a lot cheap relatively too, so, the artificial ornaments are liked to be beautiful the favoring of lady.

Then, below say 18KGP, 23KGP, 925 real meaning right away:

18KGP, 23KGP are the sign of the artificial ornament of alloy.

They are made up of two kinds of identifications, 18K or 23K is a kind of identification, K is representatives or the gold content, i.e. the content of gold, K counts the relational expression with the gold content: Au wt% = K / 24 *  100%, The national standard GB11887-89 stipulates, every K gold content are 4.166%, so can convert and know: 18K includes 75% of the gold, 23K includes about 95% of gold.

GP is a abbreviation of English Gold Plape, commonly called as forging and pressing gold commercially. This kind of identification means this product mostly regard phosphorus copper as the main material in general metal, forged and pressed under the high temperature, covered and gilded layer above, the thickness was divided into two kinds of gilding and Bao Jin again based on different gold floors.HTML clipboardReciprocating Pumps| Metering Pumps long long ago One layer of thickness of gold gilded is in a miaow ‘  Miaow (mic) It is unit of one layer of thickness of gold that the international standard stipulates)  Left and right sides, Bao Jin is about 3 miaow.

GP gild covered with gold leaf mark of ornament to put it briefly, ahead 18K or 23K mean their outside gold content to gild layer. Talk about perhaps someone will ask here, but the ornaments of 18KGP, 23KGP are mostly white but not yellow. This is to pure gold and a kind of obscurity of carat, one of the characteristics of the pure gold is soft, so when inlaying the gem because the intensity is not apt to come off enough. So, people add metal such as the silver, copper, zinc into gold in order to increase intensity and toughness of the gold, the gold jewellery made like this, is also called the carat. Nearly all inlay the gem with the carat that different K counts in the jewellery is inlaid. Reach the nobleness of the gold like this, also remedy its deficiency, and can follow the need to formulate into various colors, there are various colors of popular carat ornament in the world, the common one is yellow and white. The carat is divided into money alloy of color and white gold alloy according to the color. The color money alloy used most in the ornaments is Au-Ag-Cu (- Zn) It is the alloy; White gold alloy is mostly Au-Ag-Ni (Cu, Zn) With Au-Ag-Pd (- Zn, Cu) It is the alloy. Mix in the gold with 25% of the palladium or nickel. Zinc,etc., will become white, the main component which makes up it is still the gold, this kind of call calls the white carat, commonly called as K platinum. (Notice the platinum and platinum are not the same concept, a lot of unscrupulous merchants play with words and cheat consumers, some utilize people to misunderstand in idea, and pretend to claim the platinum is that platinum is commonly called as. )

Means it is plated or the gold filled storey is gilding or ornament covered with gold leaf of 18K money if 18KGP is concrete;

Means it is plated or the gold filled storey is gilding or ornament covered with gold leaf of 23K money if 23KGP is concrete.

925 or silver 925, S925 is the sign of the silver decorations.

The price is the lowest in silver is in the noble metal, is several 1/10 of the gold. Needn’t consider cost factor of it almost in ornament design, can design, produce a lot of fashion, overstate, not luxurious with lower cost, abundant ornament come, so, the silver decorations have become the artificial ornament clan and strength army of all one’s life.

Silver can be divided into the pure silver and line silver big class:

The pure silver includes the pure silver of title that mark a thousand of silver amount is not less than 990. Because is too soft, the ornament model of the appearance that it is difficult to cast intentionally, HTML clipboardHigh pressure pumps Piston Pumpsand easy to wear and tear and oxidize and darken. Not very suitable for ornaments to make.

The fine silver includes the title fine silver that mark a thousand of silver amount is not less than 925. Call ” 925 silver ” too ,The fine silver is usually added 7.5% copper and mixed with 92.5% silver. Because of mixing copper, its gloss after polishing of manufactured goods, more dazzling and more beautiful than the pure silver, often used as the ornament material and silver ware. This is that on the market commonly used silver adorns the raw materials. For increase 925 silver glossiness of ornaments and reduce it oxidize, spend a layer of platinum on some producers even can plate on it ‘  Attention is the platinum, instead of platinum)  . This kind of product trade is commonly called as the gold and silver products.

The silver ornament discerns the knack
1 ) Distinguish color law. Observe with the eyes, look pure white, glossy, work thinly, and printed with 925 marks on the ornament, it is a silver ornament with high quality; It looks that the color is a little yellow, workmanship is coarse, is a silver ornament with low quality; The color and luster is bad, the matt ones are mostly false silver ornaments.

( 2 ) Roll over the curved law. Roll over the silver ornament curved with hands, weak and glutinous, the easy curved quality difficult to be broken is relatively high; Stiff, or suffer the loss of and move with an effort, some are even unable to roll over the quality worked up with the finger to be relatively low; It is contracted payment ornament through rolling over curved or striking ones that will split open several times with the hammer; Light to get up, roll over curved, and easy a disconnected one the fake products.

( 3 ) Nitric acid distinguishes the law. Drip nitric acid in the file mouth office of silver ornament excellently with the glass, present color, steady and green of brown rice or the quality that the emblem is green is relatively high; Dark green, even black, there is not foam or file mouth that relatively have quality of foam bottom.

( 4 ) Throw France. It is ornaments silver from at throw downwards it at platform, bounce high, ” puff clatter more ” The true or high in quality ornaments silver; Throw and jump on the platform relatively high, and the sound is sharp and bright, the silver ornament false or with low quality.

How to discern the silver ornament?
Silver is the indispensable association metal in the carat ornament, but make for the ornament relying mainly on silver, it is mainly high purity “  Standard silver “  One kind. The hardness of the silver is 2.7, in order to improve its hardness and obtain the best shaping result, need to add 7.5% of the copper into silver while making ornaments. This kind includes silver 92.5%, alloy containing copper 7.5%, is called standard silver in the world. Called pound sterling silver (Sterling) in Britain too . In addition, there are 99% of the ornaments of pure silver of silver content on the market.

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