The invention discloses polished
metal bricks and a production process thereof. The polished
metal bricks are made from a green
brick material and a
glaze slip in a weight ratio of 60-80: 1. The green
brick material comprises the following components in percentage by weight: 8 to 15 percent of plaster, 5 to 10 percent of white mud, 1 to 3 percent of talcum, 10 to 20 percent of feldspars, 10 to 15 percent of pottery stone, 30 to 50 percent of
ceramic sands and 15 to 20 percent of high-temperature sands; and the
glaze slip comprises the following components in percentage by weight: 3 to 10 percent of kaoline, 10 to 20 percent of calcspar, 5 to 15 percent of calcined talcum, 30 to 50 percent of feldspars, 2 to 5 percent of calcined
zinc oxide, 0 to 10 percent of
barium carbonate, 5 to 15 percent of calcined aluminum and 12 to 42 percent of
inert metal powder. The production process comprises the following steps of: subjecting the green
brick material to wet-method ball milling, screening, stirring and
spray drying sequentially, the press molding the green brick material and
drying the molded green brick material to obtain green bricks; subjecting a
glaze to wet-method ball milling and screening to obtain the glaze slip; applying the glaze slip on the green bricks; and sequentially
sintering,
polishing and
grinding the green bricks applied with the glaze slip to obtain the product. The polished metal bricks are wearable, shinning and
dirt durable and have the effect of metal luster.