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Georgian japanned tin tea tray—severely worn—black lacquer and gilt made in Birmingham, UK. Japanning is a type of finish that originated as a European imitation of East Asian lacquerwork. It was first used on furniture, but was later much used on small items in metal. The word originated in the 17th century.
Permanent mold casting is a metal casting process that employs reusable molds ("permanent molds"), usually made from metal. The most common process uses gravity to fill the mold. However, gas pressure or a vacuum are also used. A variation on the typical gravity casting process, called slush casting, produces hollow castings.
The top half of the mould is called the cope. In casting, a pattern is a replica of the object to be cast, used to form the sand mould cavity into which molten metal is poured during the casting process. Once the pattern has been used to form the sand mould cavity, the pattern is then removed, molten metal is then poured into the sand mould ...
The range of colors that were available included "black, brown, red, yellow, green, gray, blue, and blends of two or more of these". [20] The article emphasized that Bakelite came in various forms. Bakelite is manufactured in several forms to suit varying requirements. In all these forms the fundamental basis is the initial Bakelite resin.
[1]: 240 After a product is designed, usually by an industrial designer or an engineer, moulds are made by a mould-maker (or toolmaker) from metal, usually either steel or aluminium, and precision-machined to form the features of the desired part. Injection moulding is widely used for manufacturing a variety of parts, from the smallest ...
Lacquer mixed with powdered cinnabar is used to produce the traditional red lacquerware from China. A maki-e and mother-of-pearl inlay cabinet that was exported from Japan to Europe in the 16th century. From the 16th century to the 17th century, lacquer was introduced to Europe on a large scale for the first time through trade with Japanese.
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Simple designs can be made in a single piece or solid pattern. More complex designs are made in two parts, called split patterns. A split pattern has a top or upper section, called a cope, and a bottom or lower section called a drag. Both solid and split patterns can have cores inserted to complete the final part shape. Cores are used to create ...