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Mokume-Gane
is a Japanese metalworking procedure which produces a mixed-metal laminate with distinctive layered patterns; the term is also used to refer to the resulting laminate itself. The term translates closely to "wood grain metal" or "wood eye metal" and describes the way metal takes on the appearance of natural wood grain. fuses several layers of differently coloured precious metals together to form a sandwich of alloys called a "billet." The billet is then manipulated in such a way that a pattern resembling wood grain emerges over its surface. Numerous ways of working create diverse patterns. Once the metal has been rolled into a sheet or bar, several techniques are used to produce a range of effects. has been used to create many artistic objects. Though the technique was first developed for production of decorative sword fittings, the craft is today mostly used in the production of jewelry and hollowware. History Origins First developed in 17th-century Japan, was originally ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hamano Masanobu - Tsuba With A Hawk And A Sparrow - Walters 51381
Hamano (written: or ) is a Japanese surname. Notable people with the surname include: *, Japanese photographer *, Japanese golfer * Junio Hamano, Japanese software developer *Kazco Hamano Hamano Kazuko (born January 19, 1970) is a singer and member of the GREAT TOUR BAND. Hamano sings the chorus, supporting Van Tomiko. Her popularity, due to her lively and energetic live performances, has led her to release two solo CDs. She is a ... (born 1970), Japanese singer *, Japanese musician, composer and actor *, Japanese film director *, Japanese archer *, Japanese football player See also * Hamano Station, a railway station in Chiba, Chiba Prefecture, Japan {{surname Japanese-language surnames ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iron
Iron () is a chemical element with symbol Fe (from la, ferrum) and atomic number 26. It is a metal that belongs to the first transition series and group 8 of the periodic table. It is, by mass, the most common element on Earth, right in front of oxygen (32.1% and 30.1%, respectively), forming much of Earth's outer and inner core. It is the fourth most common element in the Earth's crust. In its metallic state, iron is rare in the Earth's crust, limited mainly to deposition by meteorites. Iron ores, by contrast, are among the most abundant in the Earth's crust, although extracting usable metal from them requires kilns or furnaces capable of reaching or higher, about higher than that required to smelt copper. Humans started to master that process in Eurasia during the 2nd millennium BCE and the use of iron tools and weapons began to displace copper alloys, in some regions, only around 1200 BCE. That event is considered the transition from the Bronze Age to the Iron A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sheffield Plate
Sheffield plate is a layered combination of silver and copper that was used for many years to produce a wide range of household articles. Almost every article made in sterling silver was also crafted by Sheffield makers, who used this manufacturing process to produce nearly identical wares at far less cost. History The material was accidentally invented by Thomas Boulsover, of Sheffield's Cutlers Company, in 1743. While trying to repair the handle of a customer's decorative knife, he heated it too much and the silver started to melt. When he examined the damaged handle, he noticed that the silver and copper had fused together very strongly. Experiments showed that the two metals behaved as one when he tried to reshape them, even though he could clearly see the two different layers. Boulsover set up in business, funded by Strelley Pegge of Beauchief, and carried out further experiments in which he put a thin sheet of silver on a thick ingot of copper and heated the two toget ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Daikon
Daikon or mooli, ''Radish, Raphanus sativus'' Variety (botany), var. ''longipinnatus,'' is a mild-flavored winter radish usually characterized by fast-growing leaves and a long, white, root. Originally native to continental East Asia, daikon is harvested and consumed throughout the region, as well as in South Asia, and is available internationally. In some locations, daikon is planted for its ability to break up compacted soils and recover nutrients, but is not harvested. Names In culinary contexts, ''daikon'' ( ja, 大根, lit=big root) or are the most common names in all forms of English. British India, Historical ties to South Asia permit ''mooli'' () as a general synonym in English. The generic terms white radish, winter radish, Oriental radish, long white radish, and other terms are also used. Other synonyms usually vary by region or describe #Varieties, regional varieties of the vegetable. When it is necessary to distinguish the usual Japanese form from others, it is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Verdigris
Verdigris is the common name for blue-green, copper-based pigments that form a patina on copper, bronze, and brass. The technical literature is ambiguous as to its chemical composition. Some sources refer to "neutral verdigris" as copper(II) acetate monohydrate () and to "blue verdigris" as . Another source describes it as a basic copper carbonate (()2), and, when near the sea, basic copper chloride (Cu2(OH)3Cl). Still other sources describe verdigris as .(Cu(OH)2)n where n varies from 0 to 3. The alchemical symbol for verdigris is 🜨 (unicode U+1F728). Etymology The name ''verdigris'' comes from the Middle English ''vertegrez'', from the Old French ''verte grez'', meaning ''vert d'aigre'', "green ade by action ofvinegar". The modern French writing of this word is ''vert-de-gris'' ("green of grey"), sounding like the older name ''verdet gris'' ("grey greenish"), itself a deformation of ''verte grez''. It was used as a pigment in paintings and other art objects (as green col ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rokushō
is a traditional Japanese chemical compound used in the '' niiro'' process for artificially inducing patination in decorative non-ferrous metals, especially several copper alloys, with the results being metals of the ''irogane'' class. These "colour metals," virtually unknown outside Japan until the late 19th century, have achieved some popularity in craft circles in other parts of the world since then. Usage ''Rokushō'' is used to treat a number of metals, including raw natural copper, which holds impurities, purified copper, and copper alloy mixes with two to five metals, to produce ''irogane'' metals, including: ''shakudō'', an alloy of copper and gold, which becomes black to dark blue-violet; ''shibuichi'', an alloy of fine silver and copper (in a higher percentage than sterling), which turns grey to misty aquamarine or other shades of blue to green; ''kuromido'' which becomes dark coppery black. ''Rokushō'' was generally used to patinate all types of '' mokume-gane'' ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Niiro
''Niiro'' (煮色 "cooked color"), also known as ''niiro-eki'' (煮色液), ''niiro-chakushoku'' (煮色着色), ''nikomi-chakushoku'' (煮込み着色) or ''niage'' (煮上げ) is an historically Japanese patination process, responsible for the colouration of copper and certain of its alloys, resulting in the ''irogane'' class of craft metals, including '' shakudo'',Oxford, Butterworth-Heinemannm 1993: La Niece and Craddock, eds, Metal Plating and Patination: cultural, technical and historical developments - Chap. 7, Murakami, Ryu, "Japanese Traditional Alloys" ''shibuichi'' and ''kuromido''. It is now practiced in a number of countries, primarily for the making of jewellery and decorative sword fittings, but also for material for hollowware and sculpture. Importantly, the same process operates differently on different metals so that a piece with multiple components can be treated in one patination session, developing a range of colours. Etymology All forms of the name refer to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patina
Patina ( or ) is a thin layer that variously forms on the surface of copper, brass, bronze and similar metals and metal alloys (tarnish produced by oxidation or other chemical processes) or certain stones and wooden furniture (sheen produced by age, wear, and polishing), or any similar acquired change of a surface through age and exposure. Additionally, the term is used to describe the aging of high-quality leather. The patinas on leather goods are unique to the type of leather, frequency of use, and exposure. Patinas can provide a protective covering to materials that would otherwise be damaged by corrosion or weathering. They may also be aesthetically appealing. Usage On metal, patina is a coating of various chemical compounds such as oxides, carbonates, sulfides, or sulfates formed on the surface during exposure to atmospheric elements (oxygen, rain, acid rain, carbon dioxide, sulfur-bearing compounds). In common parlance, weathering rust on steel is often mistakenly refe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Billet (manufacturing)
Semi-finished casting products are intermediate castings produced in a steel mill that need further processing before being finished goods. There are four types: ''ingots'', ''blooms'', ''billets'', and ''slabs''. Ingot Ingots are large rough castings designed for storage and transportation. The shape usually resembles a rectangle or square with generous fillets. They are tapered, usually with the big-end-down. Bloom In the era of commercial wrought iron, blooms were slag-riddled iron castings poured in a bloomery before being worked into wrought iron. In the era of commercial steel, blooms are intermediate-stage pieces of steel produced by a first pass of rolling (in a blooming mill) that works the ingots down to a smaller cross-sectional area, but still greater than . Blooms are usually further processed via rotary piercing, structural shape rolling and profile rolling. Common final products include structural shapes, rails, rods, and seamless pipes. Billet A billet is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gold Mokume
Gold is a chemical element with the symbol Au (from la, aurum) and atomic number 79. This makes it one of the higher atomic number elements that occur naturally. It is a bright, slightly orange-yellow, dense, soft, malleable, and ductile metal in a pure form. Chemically, gold is a transition metal and a group 11 element. It is one of the least reactive chemical elements and is solid under standard conditions. Gold often occurs in free elemental ( native state), as nuggets or grains, in rocks, veins, and alluvial deposits. It occurs in a solid solution series with the native element silver (as electrum), naturally alloyed with other metals like copper and palladium, and mineral inclusions such as within pyrite. Less commonly, it occurs in minerals as gold compounds, often with tellurium (gold tellurides). Gold is resistant to most acids, though it does dissolve in aqua regia (a mixture of nitric acid and hydrochloric acid), forming a soluble tetrachloroaurate anion. Gold i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gold
Gold is a chemical element with the symbol Au (from la, aurum) and atomic number 79. This makes it one of the higher atomic number elements that occur naturally. It is a bright, slightly orange-yellow, dense, soft, malleable, and ductile metal in a pure form. Chemically, gold is a transition metal and a group 11 element. It is one of the least reactive chemical elements and is solid under standard conditions. Gold often occurs in free elemental ( native state), as nuggets or grains, in rocks, veins, and alluvial deposits. It occurs in a solid solution series with the native element silver (as electrum), naturally alloyed with other metals like copper and palladium, and mineral inclusions such as within pyrite. Less commonly, it occurs in minerals as gold compounds, often with tellurium (gold tellurides). Gold is resistant to most acids, though it does dissolve in aqua regia (a mixture of nitric acid and hydrochloric acid), forming a soluble tetrachloroaurate anion. Gold is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
