How to classify silver ornaments
1. Silver: smooth surface, silver-white, good ductility, looks elegant, generous, but easy to oxidize and hardness is not enough.
2. Silver alloy jewelry: Silver jewelry surface light, there is still a silvery-white, moderate hardness and ductility, processing and the characteristics of convenient, and it looks and exquisite, delicate, adornment sex is strong, jewelry in the silver alloy is mainly silver, copper alloy, usually the silver content is 92.5%, but there are also the lower silver jewelry, in particular, some ethnic style of jewelry, very beautiful and delicate.
3.Alloy 900 is called currency silver; jewelry is made of alloy 800 or above. Silver-copper alloys have the advantage of being stronger than silver; Heat treatment can improve the hardness, melting point is reduced, stability is improved, but the ability to resist discoloration is not improved, easy to produce sulfide to make silver discoloration. In order to solve this problem, people have done a lot of research and found that the cost of silver palladium alloy is the lowest. In addition, in recent years, jewelry manufacturers also introduce electroplating technology in the processing of silver ornaments, jewelry surface rhodium plating, and other metals in order to improve the wear resistance, corrosion resistance of jewelry.
4.925 silver: refers to the silver-containing 92.5% silver, in the international standard is recognized as the standard of pure silver. 100% silver is soft, cannot be formed when making, inconvenient to make silver ornaments, and relatively easy to "oxidation", commonly known as "color change".
5.Plain silver: 925 silver is coated with white rhodium, which can delay the yellow and black properties of silver when oxidized or sulfurized. The 925 silver without platinum plating on the industry is called "plain silver", plain silver is easier to oxidize in the air. A large proportion of 925 silver products sold on the market are plain silver in order to reduce the cost.
6.Thai silver: Thailand specialty, the standard is also 925 silver content. The appearance of the lack of brightness, the pursuit of an "ancient "old "ancient silver" effect. Compared with 925 silver plating platinum, silver ornaments, because the public base is not wide enough, relative to 925 silver, the price is lower. But at present, the content of a lot of Thai silver is greatly reduced, and it is estimated that more than 80% of the purity of Thai silver on the market is only about 80%.
7.Tibetan silver: generally does not contain silver components, is white copper (copper, nickel alloy) elegant name, the traditional Tibetan silver for 30% silver plus 70% copper, but even so the traditional process of "Tibetan silver", now the market has not seen, mostly to completely white copper replacement.
What kind do silver ornaments have
1: Sterling silver: It has the mark of "S925" or "AG925", indicating that this metal contains 92.5% silver. This is the most common symbol, the most common jewelry, silver on the market, is also commonly used for selling silver.
2: silver: there are "S990" or "AU990" marks, indicating that the metal silver content is 99%. This kind of logo is mostly used for silver decorations and other large silver ornaments.
3: silver, silver plating: there are "SL" or "FS" steel stamp, it shows that this jewelry is silver plating, its value need not I say it.
4: no steel stamp: it is most likely to be ordinary metal.
5.925 silver: refers to the silver-containing 92.5% silver, in the international standard is recognized as the standard of pure silver. 100% silver is soft and cannot be shaped during production, so it is inconvenient to make silver ornaments, and it is easy to "oxidize", commonly known as "discoloration".
6.Plain silver: 925 silver plated with white rhodium, which is the best way to retard the yellow and black properties of silver when oxidized or sulfurized. The 925 silver without platinum plating on the industry is called "plain silver", plain silver is easier to oxidize in the air. A large proportion of 925 silver products sold on the market are plain silver in order to reduce the cost.
7.Thai silver: Thailand specialty, the standard is also 925 silver content. The appearance of the lack of brightness, the pursuit of an "ancient" "old" "ancient silver" effect. Compared with 925 silver plating platinum, silver ornaments, because the public base is not wide enough, relative to 925 silver, the price is lower.
8.Tibetan silver: generally does not contain silver components, is white copper (copper, nickel alloy) elegant name, the traditional Tibetan silver for 30% silver plus 70% copper, but even so the traditional process of "Tibetan silver", now the market has not seen, mostly to completely white copper replacement.
Many people like silver jewelry, but do not know how to maintain it, even think that silver jewelry is difficult to maintain, the fact is not the case. After understanding why silver ornaments turn black, we only need to put some thought into our daily life, we can make the silver ornaments that were as old as new.
1. Silver jewelry should be cleaned and then put away when not worn. It is best to put it in a closed pocket to prevent oxidation and blackening. If the wearer sweats a lot, he/she can wipe the surface with a soft cloth every day to maintain luster and remove dirt. The silver of surface electroplating platinum had better be to use special brush silver cloth, brush silver cloth can be bought in brand shop of the silver act the role of. Note: Silver cloth contains maintenance ingredients and cannot be washed with water.
2, no electroplating platinum, silver ornaments, daily cleaning can be done by themselves, such as squeeze some toothpaste, add some water, scrub with a soft cloth, the gap can be brushed with a soft toothbrush, and then rinse with water. The silver jewelry embedded with gems should not touch the water, so as not to affect the fastness of the glue, and it is best to be cleaned by professional staff in the specialty store.
3, the variety of silver jewelry process, maintenance methods are not the same, can not be generalized, for many online maintenance methods can only be used as a reference, it is best to ask professional shop staff, so as not to improper operation, resulting in damage to the beloved silver jewelry.
4. Contains exquisite and three-dimensional silver ornaments made into sculptures to avoid deliberately wiping and shining. If the silver jewelry appears to turn yellow, you should first clean the fine seam of the silver jewelry with a small jewelry brush, and then gently wipe the surface with a silver cloth to restore the original silver whiteness and brightness. Here it is suggested that if the silver cloth can restore about 80% of the silver whiteness, there is no need to use the silver milk and silver wash because these products are corrosive to a certain extent. After using these products, the silver ornaments will become easier and easier to turn yellow. Wipe silver cloth contains silver maintenance ingredients, cannot be washed.
5. If there are no processing and collection of silver jewelry after wearing it at ordinary times, it is very likely to make the silver jewelry black. At this time, a small jewelry brush should be used to clean the fine cracks in the jewelry, and then drops the silver milk on the face paper, wipe the black oxide on the surface of the silver jewelry, and then use the silver cloth to restore the original brightness of the jewelry. Then remember to do a good job of daily general maintenance, to avoid silver again black, silver in many black it is difficult to wipe white.
