Henan Jutai Door Industry is a professional industrial and trading enterprise that integrates R&D, production, sales, and service. It specializes in steel-wood fire doors, wooden fire doors, steel fire doors, and fire shutter doors. But why are these doors able to resist fire? Many people are familiar with steel fire doors, but the concept of wooden fire doors may be less clear. Some consumers wonder how wood can be made fireproof. Let's take a closer look at the process.
The fire resistance of wooden fire doors largely depends on the flame-retardant treatment of the wood. As a result, many manufacturers treat this step as a key control point during production. However, due to the lack of standardized procedures for flame-retardant processes, different manufacturers use various methods, leading to inconsistent quality. In some cases, improper treatment can reduce the fire resistance of the door, posing serious risks to life and property.
Common flame-retardant methods for wood include spraying, soaking, boiling, vacuum treatment, and vacuum pressing. While the spraying and soaking methods are typically used for thin wood sheets (less than 10mm thick), they are not suitable for manufacturing wooden fire doors. On the other hand, vacuum and vacuum press methods offer better flame-retardant performance, but they require expensive equipment, which limits their use among some manufacturers.
Most fire door companies today use the boiling method for flame-retardant treatment. According to Jutai Industry, when using this method, it's crucial to pay attention to the moisture content of the wood. Contrary to common belief, the moisture level significantly affects the effectiveness of flame retardants. Dry wood absorbs more flame-retardant chemicals, resulting in better fire resistance. The higher the absorption, the greater the oxygen index and deeper the flame-retardant penetration. This directly impacts the performance of the fire door.
Unfortunately, many companies overlook this factor. They assume that wet wood will still absorb the flame retardant, so they often treat freshly cut or damp wood without drying it first. This leads to unstable and unreliable flame-retardant results. According to testing, under the same conditions, wood with a moisture content below 15% can increase its oxygen index by over 5 points and achieve a flame-retardant depth of more than 3mm.
At Henan Jutai Door Industry, we understand the importance of proper flame-retardant treatment. Our process ensures high-quality wooden fire doors that meet strict safety standards. Whether you need wooden fire doors, steel fire doors, or fire shutter doors, we provide reliable solutions tailored to your needs.
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