Shanghai white sand producing area
The flame retardancy of quartz sand can be indicated by its sintering point, that is, the temperature at which the test material is gradually melted and sintered. Sintering point refers to the temperature at which the surface of raw sand particles or the mixture between sand particles gradually melts. The sintering point test can be carried out in various continuous high temperature tubular heating furnaces, and the temperature should be controlled to 1350 ℃. Before the test, the electric furnace is heated to the predetermined temperature, and then the dried test materials are put into the calcined porcelain boat. The temperature of gradual test can be determined from 1000 ℃ or based on practical experience. During the whole process of the test, the porcelain boat equipped with test materials gradually pushed the furnace, insulated for 5min at the required temperature, and then gradually pulled the porcelain boat out of the furnace.
Shanghai white sand producing area
Heavy calcium carbonate is generally called "heavy calcium". The white powder is produced from high-quality dissolved stone raw materials. Calcium bicarbonate is dissolved in water and ethyl acetate. It has the characteristics of high whiteness, high purity, mild color, and stable reliability of organic chemistry. Heavy calcium is usually used as filler for industrial production equipment. It is widely used in brick making, plastics, plastics, paper industry, building coatings, paints, inks, cables, engineering construction commodities, food, pharmaceuticals, textiles, refined feed, toothpaste and other chemical raw materials, as a filler in the chemical manufacturing industry to increase commodity volume, reduce product costs, have a semi increase or enhancement effect, and adjust rubber hardness.
Shanghai white sand producing area
Adding colorful quartz sand to the transparent epoxy resin paint can obtain the actual effect of the floor similar to marble. The difference is in color. The color sand epoxy resin floor paint has a large number of choices and matching. The color sand floor is not only more beautiful in appearance design, but also more powerful in physical and chemical properties, which is also because the abrasion resistance and compression resistance of quartz and strong organic chemical resistance improve the compressive strength of the floor. According to the application of color sand flooring, the natural environment of the flooring can obtain higher toughness and service life, so it is suitable for the application in places with high aesthetic requirements and high compressive strength, such as stadiums, hospitals and outpatient clinics.
Shanghai white sand producing area
If refined textured sand is selected, a new filter element needs to be built to make the quartz sand evenly distributed, which can effectively prevent surface blocking and reasonably filter stains. If the setting is effective, it can also filter to standard materials at one time. If the setting is effective and the layout is reasonable, it can generally give full play to its relatively large green energy. Generally, 15-20 meters are filtered every hour, And try to control it within 50 hours. For the use of quartz sand, the actual effect of very balanced particle size distribution is naturally more ideal. The larger the particle size, the easier it is to clean. If there are fine particles, they should be cleaned continuously, and then repeatedly cleaned with air and water. The actual effect of water cleaning can be improved by using the friction force and impact force between particles.
Shanghai white sand producing area
Fine quartz powder is used as the raw material of paint, which can not only increase the filling capacity, thicken and perish in the paint, but also has the coloring characteristics of building paint and paint, moisture-proof, corrosion resistance, bacteria resistance, anti caking, avoiding flowing column, compressibility, ultraviolet radiation, anti-aging, strength film, heat resistance, high score, scrub resistance, and the smoothness of the surface of the insulation layer resistant to electricity. Ultra fine quartz powder has no environmental pollution caused by organic compounds and low metal composition It can improve the UV resistance of the coating film and has good thermal insulation It is necessary to improve the reliability of paint, building paint, storage and reduce costs.
