Rock wool originated in Hawaii. After the first volcanic eruption on Hawaii Island, residents discovered soft melted rocks on the ground, which were the first known rock wool fibers by humans.
The production process of rock wool is actually a simulation of the natural process of Hawaii volcanic eruption. Rock wool products are mainly made of high-quality basalt, dolomite, and other raw materials, which are melted at high temperatures above 1450 ℃ and then centrifuged into fibers using an internationally advanced four axis centrifuge. At the same time, a certain amount of binder, dust proof oil, and hydrophobic agent are sprayed into the product, which is collected by a cotton collector, processed by a pendulum method, and then solidified and cut by a three-dimensional cotton laying method, Forming rock wool products with different specifications and uses.
6 Advantages of Rock Wool Sandwich Panel
1. Core fire prevention
Rock wool raw materials are natural volcanic rocks, which are non combustible building materials and fire-resistant materials.
Main fire protection characteristics:
It has the highest fire protection rating of A1, which can effectively prevent the spread of fire.
The size is very stable and will not elongate, shrink, or deform in a fire.
High temperature resistance, melting point above 1000 ℃.
No smoke or combustion droplets/fragments are generated during a fire.
No harmful substances or gases will be released in a fire.
2. Thermal insulation
Rock wool fibers are slender and flexible, with low slag ball content. Therefore, the thermal conductivity is low and has excellent thermal insulation effect.
3. Sound absorption and noise reduction
Rock wool has excellent sound insulation and absorption functions, and its sound absorption mechanism is that this product has a porous structure. When sound waves pass through, friction occurs due to the flow resistance effect, causing a part of the sound energy to be absorbed by the fibers, hindering the transmission of sound waves.
4. Moisture resistance performance
In environments with high relative humidity, the volumetric moisture absorption rate is less than 0.2%; According to the ASTMC1104 or ASTM1104M method, the mass moisture absorption rate is less than 0.3%.
5. Non corrosive
Stable chemical properties, pH value 7-8, neutral or weakly alkaline, and non corrosive to metal materials such as carbon steel, stainless steel, and aluminum.
6. Safety and Environmental Protection
Tested to be free of asbestos, CFC, HFC, HCFC, and other environmentally harmful substances. Will not be corroded or produce mold or bacteria. (Rock wool has been recognized as a non carcinogen by the international cancer research authority)
5 Characteristics of Rock Wool Sandwich Panel
1. Good stiffness: Due to the bonding of rock wool core material and two layers of steel plates as a whole, they work together. In addition, the surface of the ceiling panel undergoes wave compression, resulting in good overall stiffness. After being fixed to the steel keel through connectors, the sandwich panel greatly improves the overall rigidity of the ceiling and enhances its overall working performance.
2. Reasonable buckle connection method: The rock wool roof panel adopts a buckle connection method, avoiding the hidden danger of water leakage at the joints of the ceiling panel and saving the amount of accessories.
3. The fixation method is firm and reasonable: The rock wool ceiling panel is fixed with special M6 self tapping screws and steel keel, which can effectively resist external forces such as typhoons. The self tapping screws are set at the peak position on the surface of the roof panel and adopt a special waterproof structure to avoid the occurrence of waterproof thin spots.
4. Short installation cycle: Rock wool sandwich panels, as there is no need for secondary processing on site, not only can keep the surrounding environment clean and not affect the normal progress of other processes, but also can greatly shorten the installation cycle of the panels.
5. Anti scratch protection: During the production of rock wool sandwich panels, polyethylene adhesive protective film can be pasted on the surface to avoid scratches or abrasions on the surface coating of the steel plate during transportation and installation.
It is precisely because rock wool combines various performance advantages such as insulation, fire prevention, durability, pollution reduction, carbon reduction, and recyclability that rock wool sandwich panels are commonly used as green building materials in green projects.
Post time: Jun-02-2023