The earliest foreign porcelain products appeared in what era

enamel

In the metal surface coated with one or several layers of enamel, through the firing, the two physical and chemical reactions and a strong combination of a composite material. The old name enamel. There are metal inherent mechanical strength and processing performance, but also has a coating with corrosion resistance, wear resistance, heat resistance, non-toxic and decorative. Enamel originated in glass decorative metal. Ancient Egypt first appeared, followed by Greece. 6 century Europe embedded silk enamel, pick enamel, relief enamel, translucent enamel, painted enamel came out. 8 century China began to develop enamel, to the end of the 14th century enamel technology is becoming more mature, the middle of the 15th century, Ming Dynasty Jingtai years of products are particularly famous, so there is the name of Cloisonné. 1800s, Europe developed cast iron enamel, enamel from crafts to daily necessities to lay the foundation, but due to the then casting cast iron enamel. Laid the foundation for the enamel from crafts to daily necessities, but due to the backward casting technology, cast iron enamel application is limited. 19th century, the development of various types of industry, prompting the rise of steel enamel, creating a new era of modern enameling. the end of the 19th century ~ the first half of the 20th century, a variety of different properties of the enamel was born, the popularization and use of steel plate and other metal materials, refractory materials, kilns, enameling technology is constantly being updated, accelerating the development of the enamel industry. The development of the enamel industry.

There are many kinds of enamel, according to the use of enamel can be divided into art enamel, daily enamel, health enamel, construction enamel, industrial enamel, special enamel and so on. Enamel production mainly has a glaze preparation, billet system preparation, coating enamel, drying, firing, inspection and other processes. For art enamel, daily enamel, health enamel, architectural enamel, etc., in order to decorate the appearance and use of the needs of color decoration and assembly. Industrial enameling equipment needs to be tested and then assembled. In fact, ask the previous generation of people will know, then Hou people married things inside those altar, basin dinner plate are enameled, at least my family is, older than me, with the present