The outer shell material and core material of the cleaned composite color steel plate are both sheets, constructed with rock wool board. Material quality affects product quality. Commonly used outer shell materials are color coated steel coils, with the core material being flame-retardant rock wool. Handmade boards also feature steel-aluminum frames and plastic corner pieces.
Raw materials feature the following characteristics:
1. Utilizing color steel coil, pre-treated with pre-coating and fine coating processes, resulting in a more even and stable finish, ideal for decoration, forming, corrosion resistance, and strong coating adhesion. The vibrant colors retain their luster for a long time and are energy-efficient, making them a new pre-coated steel product on the international market.
2. Rock wool
Rock wool products are made primarily from basalt, which is melted at high temperatures and then spun into inorganic fibers by high-speed centrifugal equipment. A certain proportion of binder, dust-proof oil, and silicone oil are uniformly added. Subsequently, the rock wool strips are produced according to our requirements for composite board manufacturing.
3. In addition to the two types of core materials mainly used for producing composite boards mentioned above, other materials used as cores include polyurethane, aluminum honeycomb, and magnesium oxide boards, which offer stable performance and excellent thermal insulation.
Rock wool boards are an excellent material in themselves, offering excellent thermal insulation. They serve different purposes in various fields and locations. When used for external wall insulation, they are commonly referred to as external wall rock wool boards. Installing these boards is quite convenient, simply laying them on the exterior wall. By maintaining the environmental temperature below three hundred degrees Celsius during use, they can effectively provide insulation. Moreover, rock wool boards generally have a low chance of damage, and once installed, Wuhan rock wool boards can last at least ten years.
What is the difference between fireproof mineral wool board, horizontal mineral wool, and vertical mineral wool?
Today's high-quality refractory rock wool board is mainly made from basalt and other natural ores. After melting, a four-roller centrifugal spinning process is used for custom-made rock wool boards, where the molten basalt wool solution is introduced into 4-7μm discontinuous fibers. Subsequently, a certain amount of binder, dust-proof oil, and hydrophobic agent are added to the rock wool fibers. Through processes such as transportation, curing, and cutting, a series of products with different densities are produced according to their applications. The main distinction of fire-resistant rock wool boards in the market lies in the physical distribution of the fibers, which are divided into layered and pleated, also known as horizontal and vertical yarns.
The primary difference between horizontal and vertical fire-resistant mineral wool boards lies in their production processes.
The primary production process of the horizontal process involves blowing high-temperature melt into rock wool fibers through centrifugal force, which accumulate on conveyors in alternating rooms. Once a certain thickness is reached, the fibrous refractory rock wool board passes through pressure rollers into a curing oven. The fibers added by the cavity method are distributed poorly within the plane, resulting in lower joint density and uniformity, which affects the performance of the compressed board and the bonding strength between layers. Rock wool insulation boards are produced according to the rock wool production process based on the swing method or three-dimensional method. The swing method is based on an alternative approach. By improving the collection method of cotton, a thinner layer of rock wool is first collected by the collection belt and then layered into a certain number of layers and thicknesses. The pressure rollers are then pressed and cured in the curing oven, followed by cooling, cutting, packaging, and other processing steps. This method enhances the uniformity of the cotton layers and the contained binder, and due to the inclination generated during the laying of cotton, the fibers are distributed partially vertically, thus improving the compressive strength and bonding strength between layers.
Horizontal and vertical glass wool boards exhibit certain differences in physical properties, such as tensile strength, compressive strength, and conversion coefficient. Typically, the tensile strength of vertical wool glass wool strips is 1-2 times that of horizontal ones. Blocks of horizontal wool glass wool with the same bulk density have similar compressive strength, but their resonance coefficient is slightly lower than that of horizontal wool strips. Vertical fiber glass wool strips overcome the drawback of low tensile strength in horizontal fiber glass wool strips, and can meet the requirements for external wall insulation.
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