Liaoning textured 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.
Liaoning textured sand producing area
The effect of polishing and brushing wear-resistant materials with silicon powder is very good. Follow the progress of intelligent professional skills, and the surface solution of materials is also required to be higher and more precise. The application of wear-resistant materials is becoming increasingly common. Because its particles are close to the ring, the silicon micropowder is superfine crushed according to the extremely fine and grade classification, and then treated with modified materials. It is an excellent scrub wear-resistant material for metal products. If it is used in scrub rolling bearings, the smoothness can reach more than 3.0, better than similar imported products. Other products are used for polishing semiconductor material posts, fine gate valves, hard disks, magnetic tape drives, and cars.
Liaoning textured sand producing area
Organic Chemistry Reliability. When the filter material is soaked in the water to be treated and filtered, its physical properties should be kept for a long time to avoid the chemical change between the filter material and the filter material, which will lead to the deterioration of the water body. It cannot include chemicals that are harmful to health and production. For example, water treated quartz sand can be used in intermediate, acid-base and slightly alkaline water, but discomfort is used to use water treated quartz sand as a filter for water that needs to be softened, because SI02 in quartz sand will melt and endanger its quality. Mechanical properties, impact toughness. The filter material shall have sufficient impact toughness to reduce the mutual friction of particles during the actual operation period of backwashing.
Liaoning textured sand producing area
The price of refined quartz sand is several hundred pieces higher than that of ordinary quartz sand. The refined quartz sand filter material is more suitable for deep filtration of drinking water or water body. Generally, quartz sand is mainly used for wastewater foundation cushion. Sand blasting quartz sand filter materials shall be stacked together with supporting facilities raw materials and other filter materials. Quartz sand filter materials and other filter materials shall not be piled up with other harmful substances and pollutants. It cannot be stored outdoors. It shall be stored in the way of anti pollution and pollution treatment. If stored outdoors, the packaging bag will be weathered for a long time until the plastic fragments of the packaging bag are mixed into the quartz sand, seriously affecting the actual effect of filtering.
Liaoning textured sand producing area
The specific surface area of the powder sample is the sum of the areas of all particles in the sample of enterprise quality. Generally speaking, the finer the fineness, the larger the specific surface area. However, the composition of coarse powder and stone powder should also be considered. If the composition of stone powder is high, but its D97 standard value is relatively large, the condition of large fineness and large specific surface area will occur. At the same time, when judging the specific surface area, the surface appearance of particles and whether particles are solid should also be considered. If there are many holes or dents on the surface of particles, the measured specific surface area is also high. Generally, the larger the specific surface area, the higher the smoothness of the product, but its dispersion is also difficult.
Liaoning textured sand producing area
Snow white sand is a colorless transparent quartz, which is called amethyst in Greek, meaning white ice. They firmly believe that quartz is durable ice. Snow white sand is a kind of preloaded clastic rock. It originates from various skarns and sedimentary rocks. There are very few heavy minerals, and the associated minerals are marble, biotite and clay minerals. Quartzite can be divided into two types: accumulation causes and metamorphic causes. The former one has no obvious boundary between the crushed slag particles and the binder, while the latter one refers to the quartzite iron ore with deep metamorphic level and pure quality. Vein quartz is produced by hydrothermal effect, almost all of which are composed of quartz, with high-density small structure.
