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What is the principle of stone polishing machine stone polishing?

Time：2018-08-25 Hits：3717

The principle of polishing is mainly reflected in two aspects: the principle of particle grinding; the principle of physical chemistry.

1. Particle grinding: When the abrasive particles are coarsely ground to finely ground and polished, the traces of abrasive grinding on the surface of the stone from coarse to fine and then to the traces without the naked eye, the surface will be smooth, smooth and delicate, when the depth When it reaches 110 microns, the surface of the processed surface has a specular gloss, which is radiant and bright.

Particle grinding consists of the following processes:

(1) Rough grinding: requires the grinding tool to have a deep knife, high grinding efficiency, rough grinding, and rough surface. It mainly removes the traces of the saw blade left in the previous process and the product. Flatness, the surface is ground in place;

(2) Semi-fine grinding: the coarse grinding marks are removed to form a new finer grain, and the processed surface of the product is smooth and smooth;

(3) Fine grinding: the product pattern, granules and color after fine grinding have been clearly displayed, the surface is fine and smooth, and there is a weak gloss at the beginning;

(4) Fine grinding: After processing, there is no trace of the naked eye. The surface is more and more smooth, and the gloss is about 40~50 degrees;

(5) Polishing: The surface is bright as a mirror and has a certain specular gloss (85 degrees or more).

2, physical and chemical principles: polishing process has two, namely "dry polishing and wet polishing", polishing stone between the "dry and wet" when the stone product physical and chemical effects, dry polishing is the temperature of the stone surface Evaporation of water leads to an increase in the concentration of the polishing grindstone, thereby achieving a strengthening effect, and the gloss of the product begins to meet the desired requirements, and the gloss is above 85 degrees or higher.

Polishing grindstone is polished on the processed product. After the polished product is hot, add water to the surface to reduce the temperature. It is not allowed to add water or add a lot of water. Otherwise, the lubrication of water will make the polishing less than Ideally, dry polishing cannot be used all at all. Excessive temperatures can burn the surface and crack the surface.

Generally speaking, after the product is finely ground, the gloss of the product is about 40~50, and some stones can not reach the above gloss after fine grinding, such as Shanxi black, black gold sand, Jining black, etc. After the gloss is only between 20 and 30 degrees, the front side of the particle grinding principle is not enough to explain the side, this product is polished "dry and wet", the temperature rises, cools down, strengthens the polishing process, and the physicochemical reaction occurs. In the "dry polishing, wet polishing" of the product, the gloss is gradually improved, and the gloss is over 85 degrees.