The origin of enamel:
Enamel technology originated in ancient Egypt and the Middle East, and then spread to China, Europe and other places. In the manufacturing process, enamel powder is first coated on the surface of the object, and then it is melted by high temperature firing to form a hard and smooth glaze layer on the surface. This can protect the surface of the object from oxidation, corrosion and wear, and increase the artistic and decorative effects.
Characteristics of enamel:
1, enamel color glaze itself presents a variety of colors and textures, and different metal oxides can be added as needed to blend different colors such as red, yellow, blue and green. Because of its bright colors, strong durability, weather resistance and chemical corrosion resistance, it is widely used in art, architecture, jewelry, ornaments and other fields.
2. Enamel is a kind of glaze with unique aesthetic feeling and protective function. Its manufacturing technology and application have a long history, and it has created many exquisite works of art for people.
The method of making enamel:
1, prepare the workpiece:
Choose an object suitable for firing enamel, which can be ceramics, metal utensils or glass. Clean and treat the surface of the object to ensure that the surface is smooth and free of impurities.
2. Glazing:
According to the desired color and effect, choose the appropriate enamel glaze formula. Generally, silicate, metal oxide, barium carbonate and other raw materials are mixed in a certain proportion.
3. Glazing:
The prepared enamel glaze is evenly coated on the surface of the vessel. This step requires skill and experience to ensure the uniformity and smoothness of glaze.
4, firing process:
Objects coated with enamel glaze are sent to a high-temperature furnace for firing. The furnace temperature is generally above 800 degrees Celsius, which melts the glaze and forms a hard glaze layer. The whole firing process needs to control time and temperature to avoid foaming or discoloration of glaze layer.
5, cooling finishing:
After firing, the vessel is taken out of the furnace and naturally cooled. After cooling, the glaze layer can be trimmed and polished to make it smoother and more uniform.