ÖSTERREICHISCHER EMAIL VERBAND

Enamel is a glass like material formed by melting with an inorganic compound containing mainly oxides which is fused in one or more layers onto metal  or glass items at a temperature over 450°C.


Refractories


Flux material


Oxidazing material


Opacifying material


Adherence agent


Silica


Borax


Nitrate


Titanium oxide

Nickel oxide


Feldspar


Boric acid


Manganese dioxide


Zirkonium oxide


Cobalt oxide



Sodium






Fluorine






Potash





Raw materials


Enamel - melting

Video ( in German language)

Rotation melting furnace, cooling with water cooled steel rolls


Porcelain Enamel – melting process (production of frits)


Different mixed raw materials are melted at a temperature of 1200 -1300°C. This melting process can be done in a rotary furnace or a continuous smelter. The melt is quenched and cooled with water cooled steel rolls. After this the glass film will be crushed. Due to this process frits (flakes) are formed.



Frit

(flakes)

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