Method for producing blackboard and whiteboard made from enamel in super strength, and glaze of enamel
A technology for enamel glaze and a manufacturing method, applied in the field of stationery, can solve the problems of inability to ensure dimensional stability, thermal deformation of thin steel plates, brittle and toughness of enamel, etc., and achieve the effects of strong hardness, low cost and good adhesion effect.
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[0011] Examples:
[0012] In the present invention, the enameling temperature of the base glaze and the top glaze should differ by more than 80°C. Because the process of enamel enameling is the process of melting and releasing. If the enamel firing temperature of the base glaze and the top glaze is too low, it is easy to produce pinholes and bubbles when the top glaze is fired.
[0013] 1. Bottom glaze manufacturing and enameling process
[0014] Weigh the chemical raw materials according to the formula listed in Figure 1, and pulverize and mix them thoroughly. When the heating temperature of the rotary furnace reaches 1200°C, the mixture is poured into the furnace, and the furnace body continues to be heated, rotated and stirred. The mixture is fully reacted and melted to form a melt. After wire drawing, knot testing, bending, etc., the molten material is poured into cold water and cooled to form a crushed glass-like crystal, which is the base glaze raw material.
[0015] In addi...
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