Part1: Buy first to understand the introduction and purchase of marble Marble belongs to the natural stone type and has a relatively good decorative function. It is named after its production in Dali, Yunnan, but marble is a commodity name, not a petrological definition. What exactly is that marble? What are the qualities? First, the concept of marble Marble is a metamorphic rock formed by limestone or dolomite through high temperature and high pressure in the earth's crust. The mineral composition is mainly calcite. The main component is calcium carbonate, accounting for more than 50%. Marble trait Stable without deformation Physically stable, the structure is meticulous, the film is detached by impact, the surface is not burred, the plane precision is not affected, the material is stable, the long-term deformation is guaranteed, the coefficient of linear expansion is small, the precision is high, rustproof, antimagnetic, and insulation The texture is rich and natural. The particles are fine and uniform, and the thickness of the crystal grain is ever-changing. There are many colors, such as red, white, gray, beige, yellow, green, purple, blue, brown, black, etc., and the texture pattern is numerous, there are mountains and waters. Type, cloud type, pattern type (thread, willow, image, paleontology, etc.), snowflake type, etc. The texture of the easy-to-process marble is soft, beautiful and solemn, elegant in style, rich in color and can be processed in various ways. It is an ideal material for decorating luxury buildings and a traditional material for art carving. The material with large gap and easy weathering marble has a large gap, accompanied by crack cracks and is easy to break. The hardness is low. If it is used on the ground, the polished surface is easy to lose, so the marble plate is not used for the ground as much as possible, and the marble is easy to weather, preferably used indoors. Marble has the characteristics of stability and non-deformation, and it is rich in arts and culture, beautiful in appearance, and easy to be processed. Therefore, it is widely used, but marble also has disadvantages, such as large gap, relatively easy to break, and low hardness. The smooth surface is easily lost, and it is also easy to weather. Second, home marble purchase 1, the kitchen needs marble to know The main component of marble is calcium carbonate, so it is not suitable for use in countertops in kitchen areas. Due to factors such as high temperature, oil stains and cutting, it is better to use granite and artificial stone. As for the wall and floor of the kitchen, you can choose marble with high strength, high density and good finish. 2, wall selection marble needs to know There is almost no full marble on the wall, and it is usually partially paved. Since the marble is heavy, when it is hung against the wall, if the adhesion is not enough, the drop may occur. Therefore, when selecting marble, the wall should choose a more beautiful, but lower density marble; as for the ground, although it is generally not suitable to choose marble, but because of the variety of marble, there are still higher strength, higher density marble available. Selected. Third, marble shopping skills 1, viewing the surface When purchasing, carefully check the surface of the sample. The surface of the sample should have a silky smooth feel, no flaw, no obvious unevenness; uniform color, pure and opaque, no plastic like on the surface, no fine pores on the reverse side of the sheet. ; use the nail to scratch the surface of the board without visible scratches. 2, listen to the sound The same two samples are knocked against each other and are not easily broken. And listen to its sound, in general, the quality of the stone is very crisp and pleasant; on the contrary, if there is a slight crack inside the stone or the contact between the particles becomes loose due to weathering, the knocking sound is rough. 3, size The size of the stone is measured so as not to affect the splicing, or to cause deformation of the pattern, pattern and line after splicing, and affect the effect. Fourth, about the radioactivity of marble In the past, marble provided its radiological test results to be sold to consumers, and the revised “Household Environmental Pollution Control Code for Civil Buildings†(GB50325-2010) was cancelled in 2013. Mainly because marble is mainly composed of calcite with lower radioactivity, and its radioactivity is lower than that of granite and other stones, which can be neglected. Therefore, when you purchase marble in the future, you don't need to pay attention to radioactivity. Bacterial Dysentery Furazolidone,Ascorbic Acid,Min Acac Acetylacetone,Yellow Power Aluminum Trichloride Quzhou CanWin New Material Co., Ltd. , https://www.canwinnm.com