A processing method for granite fire board, firstly sawing natural granite into a plate, the surface of the plate is subjected to initial grinding, after initial grinding, and then placed on a fixed frame, and then the surface of the initial grinding is flame-sprayed. It is characterized in that the flame is sprayed with acetylene, oxygen and a spray gun, and the flame moves evenly on the surface of the plate. The moving speed is 120 to 250 mm per second, and the distance between the nozzle and the plate surface is 20 to 40 mm, and they are inclined to each other. The temperature of the flame is 800-1000 ° C. Before the flame is sprayed, the plate is sprayed first (to prevent the plate from burning when the flame is burned, and the water is heated to absorb heat).
The processing method of granite fire board involves the processing technology of granite. First, the natural granite is sawn into a plate, and the surface of the plate is subjected to initial grinding, and then the initial grinding surface is flame-sprayed, so that the surface layer of 0.5 to 1 mm is peeled off. The granite material processed by this method exposes the true color of the stone, and has a simple, rough and natural feeling. Granite fire boards can be used on sidewalks, roads, indoor floors and walls.
The liquefied gas and oxygen are burned through a high-temperature flame, and the uneven expansion due to heat is formed to have the same effect as the litchi surface, and has an anti-slip effect.
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