The steel phenolic composite phenolic insulation board has obvious advantages, and the outer layer of the ordinary composite air duct is aluminum foil, that is, double-sided aluminum foil All kinds of railway turnout could be design, the following table shows you what we can offer.
What are the characteristics of composite phenolic insulation board?
The steel phenolic composite phenolic insulation board has obvious advantages, and the outer layer of the ordinary composite air duct is aluminum foil, that is, double-sided aluminum foil. Insulation materials are usually made of flammable polyurethane foam or polystyrene foam, so although the insulation performance is better than that of the iron duct, the strength and fire performance are lower than that of the iron duct. The outer layer of the color steel phenolic air duct is made of color steel plate, and the inner layer heat insulating material is the phenolic foam with the best non-combustible performance in the organic material, so the defects of the ordinary composite air duct can be avoided, and the obvious advantages are:
1. Safety: It meets the fireproof Class A standard: the inner layer of the color steel phenolic insulation board is made of phenolic foam. Tests have shown that the 100 mm phenolic foam has a flame resistance of more than 1 hour without being penetrated, and the smoke density is less than 3%, thus ensuring the safety of the construction personnel and users. The use of a 0.2 mm thick color steel plate on the outer surface greatly enhances the ability to withstand fire. Heat one side of the phenolic foam color steel duct of Gebao Energy Saving Materials Co., Ltd. to 1030 °C, and the other side will not exceed 65 °C. Therefore, the burning performance of the color steel phenolic duct has reached the non-combustible Class A standard, and can be applied to projects with strict fire protection requirements.
2, can be applied to medium and high pressure system: color steel phenolic air duct outer layer is made of 0.2 mm thick color steel plate, which is composited to the surface of phenolic foam material by automatic molding machine, its strength is far greater than the strength of single-layer steel plate, making color steel phenolic The pressure bearing capacity of the air duct is greatly enhanced, and its scope of use is broadened, which is applicable to medium and high pressure systems. Ordinary composite ducts use only 0.38 mm of aluminum foil, so they can only be used in medium and low pressure systems. When the pressure inside the pipe is too high, the common composite duct often has the problem of "explosion".
3, environmental protection: no harm to the human body: phenolic foam uses fluorine-free foaming, and polyurethane will escape a large amount of ozone layer destruction materials during the foaming process, causing great damage to the ozone layer. Glass fiber can cause great harm to workers' health during production and installation. When the phenolic foam is burned, no harmful gas is generated and the smoke density is low. When the polyurethane burns, cyanide gas is generated, and when the composite fiberglass duct is burned, 2-methacryloylaniline is detected, which is a harmful substance. Although the inner surface of the composite fiberglass duct is coated with polypropylene, the glass fiber inevitably pollutes the duct in the processing project. If the scattered glass fiber falls into the room with the wind, it will inevitably cause human health. harm.
4, good weather resistance, and not easy to damage, long service life: organic plastics will be aged or weathered under the long-term influence of natural conditions and external factors, even in the case of serious loss of foaming performance. Under the same conditions, phenolic has the best anti-aging properties. In addition, the outer color steel plate of the color steel phenolic air duct is treated with baking varnish, which is not rusted and is not easily damaged by external force collision. Therefore, the service life of the color steel phenolic air duct can be as long as 20 years, which is obviously higher than that of the ordinary composite air duct.
Therefore, in the medium and high pressure system, in the system with high fire protection level, the superiority of the color steel phenolic composite air duct is more obvious than that of the ordinary composite air duct.
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Track guage
Speed
Rail
Advantage
Minning railway, Passanger railway, Heavy railway
1435mm, 1067mm,1600,750mm
under 160Km/h casting frog, Above 160Km/ alloy fabricated crossing
UIC60, UIC54,BS80,37Kg,50Kg... allkinds
Offering concept design
We Zhongbo Railway Fastening Co.,Ltd established in 2004, our main products include: Rail fastening Parts, Rail Jointing Parts, Parts used for tunnel rings connection, High Strength Bolts for Electric Power and Petrol Pipes Industry.
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