Among all the natural and artificial stone flooring materials, several granites and microcrystalline stones are by far the hardest and most wear-resistant materials, and they also have antifouling and acid and alkali resistance, while granite and microcrystalline stone floors are More wear-resistant, but after long-term use, especially the erosion of outdoor acid rain, summer and winter thermal expansion and contraction and weathering, granite, microcrystalline stone floor will also lose luster or even damage, so grinding, renovation, stone conservation Must not be small. For the grinding and polishing of granite and microcrystalline stone floors, it should be determined according to the required production efficiency and the mineralogical properties of granite and microcrystalline stone. It can be divided into the following five steps: 1. Rough grinding: use 50#, 150# diamond resin hard abrasive or rhombohedral 60#, 120#, 220# grinding block (rough grinding, do not use soft water grinding disc for grinding, easy to appear wave, affect flatness) The amount of coarse grinding water should be large. Every abrasive grinding should be thoroughly absorbed. Check whether the deep scribe left by the cutting abrasive is ground with 50# abrasive. By analogy, the machine is grinding and the coarse grinding accounts for 45% of the overall grinding. Time is the key link to ensure the quality of project completion. 2, fine grinding: the use of 300 #, 500 #, 1000 # diamond resin hard abrasive, fine grinding accounted for 35% of the overall time, fine grinding to 500 # after the emergence of the first light, fine grinding to 1000 # after the gloss can be Up to 50 degrees. 3, fine grinding: using 2000#, 3000# diamond resin soft water grinding disc for grinding, fine grinding accounts for 20% of the overall grinding time, the gloss is not improved after fine grinding, but the surface density of granite and microcrystalline stone is improved. It lays a solid foundation for polishing powder A5 and polishing slurry (A2A5 blending agent). 4, polishing: use power 2HP or more, speed 175---210 rev / min, weight 45-70 kg crystal machine, animal hair content 70% animal hair pad, 3M pad, nano pad, with polishing powder A5, agent A2 or polishing slurry (A2A5 blending agent) is polished and polished. After polishing, the surface gloss of granite and microcrystalline stone can reach more than 90 degrees. 5, crystal hardening treatment: the use of crystal machine power 2HP or more, speed 175---210 rev / min, weight 45-70 kg with cleaning pad (white or red), 3M pad, nano pad, crystal surface hardener The A2 spray watering can be evenly sprayed on the surface of granite and microcrystalline stone, and the starting crystal machine can walk 1.5 meters wide and 1.5 meters long. It can travel 6 times repeatedly, and generate heat through 3M pad, nano pad, friction on the surface of granite and microcrystalline stone. It is ion-exchanged with the hardener A2 to form a crystalline layer of the nano-inorganic polymer copolymer, which is glassy, ​​has high hardness, wear resistance, transparency, water resistance, anti-fouling, anti-slip and the like. [Follow the WeChat public number " Jiuzheng ceiling kitchen grid "; pay attention to courtesy, scan code to send millions of business opportunities! Jiuzheng Building Materials Network ceiling kitchen electric group] Carbide Hole Saw,Steel Hole Saw,Carbide Hole Saw Cutter,Hole Saw Cutter Bits Danyang Yongshun Tools Co.,Ltd , https://www.china-drill-bit.com