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Enamel production process
Divided into the billet, glaze (including melting frit glaze and crush into a powder or glaze), enameling, firing, decorated with flowers and other processes. In the metal stamping or casting billet pre molding on the first coating of glaze, firing after the coating surface glaze (one or more), which is the traditional multiple enamel coating method. Glaze is transition layer combining with metal blank, has strong adhesion, surface glaze is coated on the bottom glaze, which covers the background and provide the products with a smooth surface appearance and a series of excellent physical and chemical properties. Surface glaze and glaze opaque surface (white and colored) and colorless transparent glaze of. The latter is sintered on the surface of the outermost layer to enhance gloss WIP or improve performance for adding surface glaze. Now has a new process of enameling, is preparing a glaze, as both the bottom and glaze, glaze, a coating, a sintering to obtain product.
Products: have been coated enamel firing blank is placed in the box type furnace, rotary furnace or a tunnel kiln firing. With dense silicate glaze of boron, firing temperature is about 800-860 degrees Celsius, in order to make it able to form iron oxide layer on the blank surface, conducive to the porcelain layer with blank (steel) good adherence, it would be necessary to take the oxidizing atmosphere. Surface glaze firing temperature is slightly lower, with antimony antimony surface glaze opaque color is 850 to 900 DEG C, the titanium surface glaze is 820 to 860 DEG C. In order to make the surface glaze with good opaque and bright colors, and glaze closely, to strictly control the firing atmosphere of time and the furnace, iron blank if using antimony glaze and glaze is particularly sensitive to the atmosphere of titanium.
Products: have been coated enamel firing blank is placed in the box type furnace, rotary furnace or a tunnel kiln firing. With dense silicate glaze of boron, firing temperature is about 800-860 degrees Celsius, in order to make it able to form iron oxide layer on the blank surface, conducive to the porcelain layer with blank (steel) good adherence, it would be necessary to take the oxidizing atmosphere. Surface glaze firing temperature is slightly lower, with antimony antimony surface glaze opaque color is 850 to 900 DEG C, the titanium surface glaze is 820 to 860 DEG C. In order to make the surface glaze with good opaque and bright colors, and glaze closely, to strictly control the firing atmosphere of time and the furnace, iron blank if using antimony glaze and glaze is particularly sensitive to the atmosphere of titanium.
