stone polishing machine hire

stone polishing machine hire

Stone polishing machine is a very important part of quartzite production line. Our company can provide stone polishing machine hire

Polishing of the product: the polished millstone is placed on the processed product. The polishing effect is achieved by the quick operation of mechanical equipment and "dry polishing and wet polishing". The surface of the product will have a very strong reflection light, which is usually described as gloss.

The principle of polishing is mainly reflected in 2 aspects: the principle of particle lapping and the principle of physical chemistry.

1、Particle grinding: when the abrasive particles are grinded from coarse to fine grinding and polished, the trace of grinding on the surface of the stone is from coarse to fine to no naked eye. The surface is smooth, smooth and delicate. When the depth is 110 microns, the surface has a mirror gloss, bright color and bright color.

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Particle grinding is made up of the following processes：

（1）Coarse grinding: it is required that the grinding tools have a deep cutting tool, high grinding efficiency, coarse grinded lines and rough surface, which mainly remove the trace of the saw blade in the front process, and grind the surface of the product into place；

（2）Semi fine grinding: remove coarse grind marks and form a new finer texture. The surface of the product is smooth and smooth；

（3）Fine grinding: the fine pattern, grain and color of the product have been clearly displayed after being finely ground. The surface is fine and smooth, and has a weak glossiness.；

（4）Fine grinding: processed products without naked eye detection. The surface is more and more smooth, and the glossiness is about 40~50 degrees；

（5）Polishing: the surface is bright as a mirror with a certain gloss (above 85 degrees).

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2、Physical and chemical principle: the process of polishing is 2, that is "dry polishing and wet polishing". The polished millstone has physical and chemical effects between "dry and wet" between "dry and wet". Dry polishing is the evaporation of water on the surface temperature of the stone, resulting in the increase of the concentration of polished grindstone, so as to achieve the strengthening effect, the glossiness of the product begins to reach the beginning. To the ideal requirement, the gloss is above 85 degrees or higher.

Polished millstone is polished on the processed product. After the polishing product is scald, the surface is added to the surface with water to play a cooling effect, not to allow continuous water or a large amount of water. Otherwise, the lubrication of the water will not achieve the ideal effect, and can not all use dry polishing. Too high temperature will burn the surface of the plate, and will burn out the surface of the plate. Make a crack in the surface of the plate.

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Generally speaking, after the product is fine grinding, the glossiness of the product is about 40~50, and some stone can not reach the gloss of the above, such as Shanxi black, black gold sand, Jining black and so on. The gloss of this kind of product is only 20~30 degree after fine grinding. With the humidity, the temperature rise, the cooling, the polishing process, the physical and chemical reaction, the product in the "dry polishing, wet polishing", glossiness increases gradually, glossiness reaches more than 85 degrees.

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The polishing effect of stone depends on two aspects: one is the polishing technology used, namely the artificial external cause of "acquired"; the two is the inherent cause of stone itself.

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Without considering the internal cause of the stone itself, several main factors affecting the polishing process are the type of polishing agent, the polishing liquid (paste), the polishing tool, the discs, the polishing and polishing process parameters.

Although polishing agent is a special polishing material, the difference between it and grinding material is mainly in the processing mechanism. In principle, some low hardness micropowder materials can also be used as polishing agents. But usually the high hardness polishing agent is better than the low hardness, and has a wide range of applications. Diamond polishing powder can achieve satisfactory polishing effect for the polishing of most stones.

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Water is a common polishing liquid. It can not only play the role of grinding cooling, but also be used as a medium for physical and chemical action in polishing process.If the polishing of stones is mainly based on mechanical grinding, such as diamond micro powder, polishing oil generally uses organic liquid like oil, such as sewing machine oil. Its cooling, lubricating and dispersing functions are excellent.Diamond grinding paste has both water quality and oil quality, and coloring agent can also be added. Its formula is: abrasive + dispersant + carrier + water + coloring agent.

The standard smooth stone light panel is a form of expression for the surface grinding of stones. The hard disk made of metal material is used as the polishing disc. The polished surface of the floppy disk is easy to yield to a concave surface when the stone is pressed, and is suitable for the arc surface polishing. The hard disk has good abrasion resistance and good absorbability, and has a certain elasticity.

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The process parameters include the concentration and supply of polishes, the pressure and line speed during polishing. The polishing speed increases with the increase of the concentration of the polishing agent before the concentration is smaller than a certain concentration. After the concentration is maximum, the polishing speed will decrease if the concentration is increased. Similarly, when the supply of polishing agent is at a certain value, the polishing speed is the largest. If the supply continues to increase, the polishing speed will decrease. Properly increasing the pressure during polishing can increase the polishing speed, but the pressure is too high and the grinding effect is strengthened, which is not conducive to the formation of the gloss surface. The polishing speed depends on the rotational speed of the discs, but the line speed is too large. The polishing agent will be thrown away, resulting in waste.

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Theoretically, different minerals should use different polishes. Polishing is a fine processing technology for stone, and it is called surface polishing technology. There are many factors affecting the polishing of stone. There are problems in the process conditions and parameters in the process of polishing. There are also kinds of polishing agents and auxiliary materials and the problems of discs and discs. It is also related to the mineral composition and quality of stone.