Processing methods commonly used by Zhangqiu black stone manufacturers

1. Zhangqiu black plate is made of chopped axe plate. The surface of Zhangqiu black is processed by hand-made chopped axe. The surface is not smooth and has a standard strip axe pattern. .

2. Zhangqiu black is made of machine-planed board. The surface of Zhangqiu black is scraped by mechanical equipment, the surface is leveled, and there are planing lines parallel to each other. It is used for similar purposes as chopped axe board, but the surface layering is more detailed.

3. Zhangqiu black sheet is made of finely ground sheet. The surface of Zhangqiu black is finely ground, and the smoothness is dull. It is mainly used for walls, surfaces, steps, bases, etc. of the actual effect of soft light.

4. Zhangqiu black is made of polished plate. The surface of Zhangqiu black is ground and polished, the surface is flat and bright, the granite molecular structure is clear, and the color tone is colorful. It is used for walls with high gloss and smooth surface. Pavements and Surfaces.

The use of Zhangqiu black plate is divided according to the grain size: the fine crystal can be polished or engraved as a decorative design plate or handicraft; the moderate particle size distribution is often used in the construction of bridge piles, bridge arches, river embankments, ports, foot restraints, etc. Basic, ground, etc.; strong crystals are rolled into sand and gravel, which is an asphalt mixture for cement. Because marble is acid-resistant, it is also used as acid-resistant linings and utensils in chemical plants and metallurgical industries.