granite flame

How is the granite flame-textured surface made?

Cutting and Initial Grinding: First, the natural granite is sawed into slabs, and the surface of the slab is initially ground to ensure it is flat.

Flame Spraying: The surface, after initial grinding, is flame sprayed. The specific process involves using acetylene, oxygen, and a spray gun for flame spraying. The flame moves evenly across the slab surface at a speed of about 120 to 250 mm per second. The distance between the spray gun nozzle and the slab surface is kept between 20 and 40 mm, with the flame temperature being around 800 to 1000°C.

Before flame spraying, water is usually sprayed on the surface of the slab to prevent it from being damaged during the flame treatment. At the same time, the water evaporates and absorbs heat.

Cooling and Subsequent Treatment: After flame spraying, the granite surface forms a unique texture, similar to the effect of fire treatment. This process makes the granite surface more slip-resistant and wear-resistant, making it especially suitable for outdoor paving.