The Development History And Types Classification of Enamel

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        History ofEnamel

        Enamel, also porcelain enamel, was originally used for glass coloring and ornamenting the surface of metals. Enamel first appeared in ancient Egypt, followed by Greece. Wire enamel, cutted decoration enamel, basse taille enamel, translucent enamel and painted enamel were successively introduced in Europe around the 6th century. In China enamel began to be developed around the 8th century. By the end of 14th century, enamel crafting/production had become highly advanced. The most well-known Chinese cloisonné pieces, also known as Jingtai Blue, are from the reigns of the Jingtai Emperor (1450–57) in the 15th century. At the beginning of the 19th century cast iron enamel was invented in Europe, which laid the foundation to convert enamel products from craftwork to daily necessity. Due to backward cast iron technology at that time, its application was rather limited. In the mid-19th century sheet steel enamel emerged during the fast development of all kinds of industries. It was considered as the beginning of a major epoch of modern enamel. The enamel industry is greatly promoted with various enamels of different performances introduced, sheet steel and other metal materials applied practically and refractory material, kiln and coating technology upgraded constantly.

        Classification

        Ferrous metal enamel and nonferrous metal in inters of base material

        Daily used enamel and non-daily used enamel in terms of application

        Mono-fired, duo-fired and multi-fired enamel in terms of processing technique

        It can be divided into acid proof, eutectic and microlite enamel according to the enamel properties. 

        Generally speaking, enamel product is classified in the following categories.

        Enamel utensils

        It mainly includes basin, cup, plate, bucket, bowel, can, pot, spittoon and other products such as medical needle basin, vase, candy box, tea set kit and ashtray etc. 

       Kitchen enamel product

        It mainly includes cupboard, ventilator, gas cooker, gas oven, beer barrel and water tank etc.

        Sanitary enamel product

        It mainly includes steel plate enamel bathtub, cast iron enamel bathtub, shower tray.

        Medical enamel products.

        It mainly includes electromagnetic radiation device and dental enamel etc.

        Construction enamel product

       It mainly includes wall plate, hanging heater, hand dryer, floor drain, sign board, illuminant sign board and blackboard etc.

        Electric enamel product

        It mainly includes electric enamel board and electro thermal film enamel etc.

        Enamel glass product.

         Compared with normal thin steel plate enamel, it contains more silicon with similar performance to chemical glass. It has excellent resistance to various mineral acid, organic acid, weak acids and organic solvent, except that it is subjected to hydrofluoric acid, fluorine medium, strong base and strong phosphoric acid .