The difference between granite and fire board
Fire board - a method of processing granite, the first natural granite saw the plate, the surface of the plate after the initial grinding, after the first mill on the fixed frame, and then the surface of the first grinding flame burning Which is characterized in that the flame is sprayed with acetylene, oxygen and spray gun, and the flame moves evenly on the board surface at a speed of 120 to 250 mm per second and the distance between the nozzle and the board is 20 to 40 mm and Inclination, the flame temperature of 800 ~ 1000 ℃, the flame before the first spray on the plate before the water (to prevent the flame burning burned plate, the water heat absorption heat absorption)
Granite (Granite), the main component of the continental crust, is a kind of magma formed in the surface below the formation of igneous rock [1], belonging to deep into the rock. The main ingredients are feldspar, mica and quartz. The granite language is the Latin granum, meaning grain or grain. Because granite is a deep diagenetic, often able to form a well-developed, visually discernible mineral particles, hence the name. Granite is not easy to weathering, beautiful color, the appearance of color can be maintained for more than a century, because of its high hardness, wear resistance, in addition to the use of high-level architectural decoration works, hall floor, or open-air carving of the preferred material.
Fire board is the granite surface with liquefied gas and oxygen through the high temperature flame burned, due to uneven heating different expansion, and the formation of a little bumps like litchi surface of the same effect, a non-slip effect.
