Now there are more and more high-rise buildings. For the sake of safety, people have higher requirements for thermal insulation materials of buildings. Because of several fires in various places, people paid more and more attention to the fire rating of insulation materials, which also promoted the development of the construction industry. It was a major change in the construction industry, so there was the birth of rock wool board insulation materials. Next, let's learn about rock wool Insulation board 。
Rock wool board is also called rock wool insulation Trim panel It originated in Hawaii, because after the previous volcanic eruption on the Hawaiian Island, the residents found the melted rocks, which is the initial process of people's understanding of rock wool, which also laid the foundation for the generation of rock wool. The production process of rock wool is simulated according to the natural process of Hawaiian volcanic eruption rocks. The rock wool board is mainly made of high-quality basalt, which is melted at high temperature and then passed through four axes Centrifuge At the same time, a certain proportion of dust-proof oil, binder and water repellent are sprayed into the high-speed centrifugal fiber. After the process of assembling machine and pendulum method, the three-dimensional method is used to lay cotton, solidify and cut it, so as to form rock wool products of different specifications and uses.
The materials used for rock wool composite board are Class A incombustible material. cement Fiberboard Judgment index (Grade A): average temperature in furnace ≤ 50 ℃; Continuous combustion time ≤ 20s; Mass loss ≤ 50%. The product indicators are the average temperature in the furnace=19 ℃; Continuous burning time=0s; Mass loss=13%. The combustion performance test results of rock wool are Class A incombustible materials.
Rock wool board is an artificial inorganic fiber, which has the characteristics of heat preservation, heat insulation, small thermal conductivity and non combustible. Rock wool board and extruded board are both insulation boards, which can bring cool to people in hot summer and warm to people in cold winter. Therefore, many people now require insulation of houses. After the house is insulated, the residents are not only comfortable without potential safety hazards, but also do not have to worry about the noise of vehicle horns coming and going on the road affecting their rest, and do not have to worry about the noise from the next room or upstairs, which is mainly because the rock wool board has good thermal insulation and sound absorption functions.
Structural action:
1. The system structure of rock wool board mainly consists of bonding layer, thermal insulation layer, plastering layer, finishing layer and accessories. 2. The bonding layer belongs to the building, which is between the bottom layer and the surface layer. The upper and lower layers should be firmly bonded together with cementitious materials, and the filler is mainly from inorganic substances.
3. Thermal insulation layer In order to avoid and reduce the heat loss of steam turbine to the environment, the thermal insulation material layer laid on the outer surface of steam turbine and pipeline is mainly filled with rock wool fiber and a certain amount of agricultural production system materials, water, adhesive, etc.
4. The finishing layer shall be light functional coatings such as finishing mortar and decorative mortar, or water-based exterior wall coatings with excellent air permeability, so as to keep the rock wool board light and increase its beauty. 5. The accessories are mainly made of various coatings. On the one hand, the color of the surface of the rock wool board is increased to make it suitable for any environment, and the coating can play a role in flame retardancy and heat preservation to a certain extent.
Rock wool board is widely used in metallurgy, electric power, construction and other industries due to its tough surface, durability, strong impact resistance and wind resistance, high temperature resistance, corrosion resistance, aging relief and other characteristics. Because of its light weight, rock wool board is convenient for transportation, installation, energy conservation, environmental protection and high cost performance during construction.
