The silver history was very old and, in about B.C. 3000, was found as a silver jewel in burial remains of the Ulu culture (a city of ancient Sumerian Mesopotamia). In the Europe, a jewel or tableware using the silver which was wealth and a symbol of the power than ancient times were produced a lot.
Lost wax manufacturing method casting
I make a model with wax in a lost wax manufacturing method (casting) beginning. I bury it in liquid rubber and tear moulage, the rubber type which hardened in two and take out a model and pour the wax which I dissolved in the place that was able to put rubber types together and take out the wax which I harden, and was reproduced. When bury the wax in gypsum, and bake it, wax melts, and appear; and hollow ができるます. When I pour the noble metal which I dissolved into the cavity that I had and break gypsum, it is possible for the same thing.
oxidation of silver925
I design it and make the metal industrial art object including the smudging out processing silver accessories, and various finish is given by manual thought. Even if it is the silver accessories of the same design, with one surface finish, it is to the accessories of totally different impressions. I criticize the method of this surface finish, and there are various methods including the method to color the surface it from a physical method rubbing chemically.
Japanese silver
Ginzan has been opened in each place of San-in and Hokuriku since silver was produced according to the Japanese clerk in Japan from the seventh century, and it was at the middle in the 16th century, and arsenical rat poison from Iwami-silver-mine was developed. With it, various silver mechanics, metalcraft technology of the metalworking were developed. A silver product made the precise work on had it to a bottle and cup and tableware, a vase, an ornament, accessories including Kazuhiro tea set, and I was beautiful, and they decorated the daily life of people. Above all, I was under the protection especially from the Edo Shogunate and each daimyos, and 錺師 (I do a decoration) with work as metal competed for the skill to the arms such as a sword or the armor and helmet because a relation was deep.
A characteristic of the silver
The silver is first metal one which a human being used. Calm gentle white luster is a characteristic, but the reflectance of the visible ray is the highest (with mercury) (as for the reflectance, 90%, the infrared rays reflect back 98%) and can start the brightness that is stronger than the platinum by what I polish in all metal. "argentum" that the silver symbol of an element "Ag" means "white brightness" in Latin is the etymology. In addition, I am full of expansibility, and heat and the electric conductivity are biggest among every metal. The silver is distributed over the natural world widely, but the gross weight is extremely few things if I compare it with other metal. In addition, a point included in in existing many minerals naturally is different from the money.
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