How to construct marble crystal powder more suitable?

1. Why sprinkle powder first and then water?

　　 Answer: The PH value of marble crystal powder mixed with water is 1-2, which is a strong acid. If the powdered water mixture is sprayed directly on the surface of the marble, when the mechanical grinding disc does not press the material in time, it is easy to cause concentrated instantaneous acid corrosion at the falling material on the marble surface. Commonly known as the burning phenomenon. Sprinkling powder first, and then water, is to ensure that the powder and water can be evenly spread under the rotation of the machine grinding disc when the powder and water are mixed. When the powder water acid is in contact with the marble surface, the concentrated acid etching time is reduced, and the acid etching force is dispersed and uniform .

2. Why is the ratio of general powder and water 1:1-1.5 most appropriate?

　　Answer: When grinding with one part of powder and 1-1.5 parts of water, it is called dry grinding, which makes the effect more translucent and clear. Strong sense of thickness. If a portion of powder is mixed with 10-20 powder, or when powder is sprinkled and soaked in a large amount of water, the gloss of the crystal surface will be fuzzy, not clear, and there will be no thick feeling. And when the amount of water is too much, it is easy to accelerate the phenomenon of marble returning to alkali. That is to say, the marble crystal surface made on the same day was "unrecognizable" by the second and third days when it was checked and accepted, and it was actually returning alkali.

3. How much crystal powder to sprinkle at a time? How much area is suitable for grinding?

　　Answer: It is more appropriate to sprinkle 30-80 grams of crystalline powder at a time. Sprinkling too much will gather at the edge of the central hole of the white mat, which will easily cause long-term hardship and difficulty in drying. The grinding area is suitable for 2-4 square area. After the 2-4 flat area is well polished (the light is intact), the machine enters the next 2-4 square area. Then why not dust and grind 10-20 square meters at a time? Because if the area of the grinding area is too large and too wide, it is easy to cause the crystalline powder to "crust" on the marble surface in advance, that is, to produce a circle of arc-shaped "marks" that are not dry. What should I do if there is a "print"? Sprinkle a small amount of water and repeat the grinding. At the same time, the grinding area should not exceed 2-4 square meters, and the grinding in this area is complete