When using LCB fire-proof core panel in door in extreme environment, its performance faces many challenges. These challenges come from the impact of factors such as temperature, humidity, and chemical substances in the environment, which have different degrees of impact on the fire protection, structure and use function of the door.
High temperature environment is a common extreme condition that tests the performance of LCB fire-proof core panel in door. Although it was originally designed to have fire resistance, excessive and continuous temperature will still affect the door material. The coating on the surface of the door may change color, peel or even fall off under high temperature, which not only affects the appearance, but also weakens the protection of the internal materials. The fireproof core board is exposed to high temperature for a long time, and its internal structure may change. The originally stable chemical properties may change due to high temperature, resulting in a decrease in fire resistance. If the temperature exceeds its tolerance limit, the core board may deform and crack, making it impossible for the door to close tightly, and the fire separation function fails, and it cannot effectively prevent the spread of fire.
Low temperature environment also brings problems to LCB fire-proof core panel in door. Low temperatures can make the door material brittle, especially the metal parts of the door, which have reduced toughness at low temperatures and are more likely to crack or break when impacted by external forces. Rubber products such as the door's sealing strips will harden and lose elasticity at low temperatures, and cannot fit tightly against the door frame, resulting in larger gaps. This will not only affect the door's heat insulation and sound insulation, but more importantly, when a fire occurs, high-temperature smoke may penetrate through these gaps, reducing the effectiveness of fire separation. In addition, low temperatures may also affect the flexibility of the door hardware, making it difficult to open and close the door, which is not conducive to personnel evacuation and fire rescue in an emergency.
The erosion of the lcb fire-proof core panel in door by high humidity environments should not be underestimated. Continuous humid air can dampen the wood or filling materials of the door. Once damp, these materials are prone to mildew and rot, destroying the structural stability of the door. Metal parts will rust due to water vapor erosion. Rusted hinges, locks and other hardware will not only affect the normal opening and closing functions of the door, but also reduce their strength due to rust. In emergency situations such as fire, they cannot bear the weight of the door body, causing the door body to fall off and lose its fire separation function. At the same time, a humid environment may also accelerate the hydrolysis reaction of molecules inside the fireproof core board, change its physical and chemical properties, and thus affect the fireproof effect.
In extreme environments where chemical corrosive substances exist, the performance of the lcb fire-proof core panel in door will be seriously threatened. Chemical substances such as acids and alkalis will react chemically with the door body materials and corrode the surface and internal structure of the door body. The coating of the door body will be quickly destroyed and lose its protective function under the action of chemical substances. If the fireproof core board comes into contact with chemical substances, the chemical components inside it may be neutralized or decomposed, resulting in a significant reduction in fireproof performance. Chemical corrosion will also cause the metal parts of the door body to corrode rapidly, resulting in holes, fractures, etc., greatly weakening the overall strength and stability of the door body, making it unable to play a normal fire separation role in the event of a fire.
Extreme environments with strong winds and sand can also cause damage to lcb fire-proof core panel in doors. The wind and sand constantly hit the surface of the door body, gradually wearing away the coating and materials of the door body, making the surface of the door body rough, reducing the appearance and protective performance. Fine sand and dust may also enter the gaps of the door body and the inside of the hardware, increasing the friction between the components and affecting the normal opening and closing operation of the door. Long-term wind and sand erosion may destroy the sealing structure of the door body and reduce the door's thermal insulation, sound insulation and fireproof performance.
In the face of special extreme environments such as earthquakes, lcb fire-proof core panel in doors may suffer structural damage due to severe vibrations. Under the action of earthquake forces, the connection between the door body and the wall may become loose, deformed or even fall off, causing the door body to be unable to close or open normally. The structure of the door body itself may also crack due to vibration, affecting its integrity and stability, making it difficult for the fireproof core panel door to play its due fireproof separation role if a fire occurs after an earthquake.
Extreme environments have a negative impact on the performance of lcb fire-proof core panel in doors from multiple dimensions, involving fire prevention, structural stability, sealing and other aspects. To ensure that it can still function normally in extreme environments, it is necessary to fully consider environmental factors in the design, material selection and installation stages, and take targeted protective measures. At the same time, daily maintenance and testing should be strengthened to promptly identify and deal with potential problems.
