钢材外观非常坚固可靠，但如果不采取任何防火措施，一旦发生火灾就会非常脆弱，强度会下降。那么，怕火的轻型钢结构应该如何做好防火保护呢？下面济南轻型钢结构厂家为您讲解。

The appearance of steel is very solid and reliable, but if no fire prevention measures are taken, it will be very fragile and its strength will be reduced in case of fire. So, how to do a good job of fire protection for light steel structures that are afraid of fire? Next, Jinan light steel structure manufacturer will explain to you.

一.隔热方法

1、 Thermal insulation method

用耐火材料包裹钢结构工厂。包装材料有混凝土、轻质耐火混凝土、钢丝网砂浆等，具有取材方便、价格低廉、表面强度高、抗冲击性能强、对钢结构厂房施工技术要求不高、但重量较重的优点。

The steel structure factory is wrapped with refractory materials. The packaging materials include concrete, lightweight fire-resistant concrete, steel mesh mortar, etc., which have the advantages of convenient materials, low price, high surface strength, strong impact resistance, low technical requirements for steel structure workshop construction, but heavy weight.

二.热阻法

2、 Thermal resistance method

其原理是隔绝或隔绝火灾产生的热量，使钢结构工厂装配件规定内的温升不超过临界温度。

Its principle is to insulate or insulate the heat generated by fire, so that the temperature rise within the specified range of steel structure factory assembly does not exceed the critical temperature.

方法是在组件表面设置保温材料。火灾中产生的高温首先传递到这些保温材料，然后从保温材料传递到组件。保温材料的热传导率小，因此需要保护，以免热流传递到部件。

The method is to set thermal insulation material on the surface of the module. The high temperature generated in the fire is first transferred to these insulation materials, and then from the insulation materials to the components. The thermal conductivity of the insulation material is small, so it needs to be protected to avoid heat transfer to the components.

三.热传导法

3、 Heat conduction method

该方法通过填充新截面，将火灾时吸收的热量传递给水，通过水的蒸发驱散热量，或通过循环消除热量，起到保护钢结构厂房构件温度保持在100左右，避免框架温度上升到临界温度的作用。

This method transfers the heat absorbed in the fire to the water supply by filling the new section, dissipates the heat through the evaporation of the water, or eliminates the heat through the circulation, so as to protect the temperature of the steel structure plant components to keep around 100 and prevent the frame temperature from rising to the critical temperature.

四.喷雾方法

4、 Spray method

可以使用涂料器具将防火涂料直接涂在钢结构构件表面，在火灾时形成耐火保护层。目前，大型钢结构采用两种方法。厚涂防火涂层厚度为8-50mm，密度低，导热系数低，涂料本身的隔热性能可大大提高钢梁的耐火性能，提高到0.5-3h。对于面漆，涂层厚度不超过7mm，该涂料具有一定的装饰性能，通过涂层高温膨胀发泡形成的耐火隔热层，可以提高钢梁的耐火性能。

Fire-resistant coating can be directly applied to the surface of steel structure components by using coating appliances to form a fire-resistant protective layer in case of fire. At present, two methods are adopted for large steel structures. The thickness of thick-coated fireproof coating is 8-50mm, with low density and low thermal conductivity. The thermal insulation performance of the coating can greatly improve the fire resistance of the steel beam to 0.5-3h. For the top coat, the thickness of the coating is not more than 7 mm, and the coating has certain decorative properties. The fire-resistant and thermal insulation layer formed by the expansion and foaming of the coating at high temperature can improve the fire-resistant performance of the steel beam.

轻型钢结构防火燃料的一般要求是提前检查原料，尽量避免使用商业材料和苯溶剂。合格的防火涂料须为碱性，底层涂料可与一般防锈涂料一起使用，晒干后不能有刺激性的气味。更多相关内容就来我们网站http://www.jnghbxg.com咨询！

The general requirement of light steel structure fire-proof fuel is to check the raw materials in advance and try to avoid using commercial materials and benzene solvent. The qualified fireproof coating must be alkaline. The primer can be used together with the general anti-rust coating. After drying, it cannot have irritating smell. Come to our website for more relevant content http://www.jnghbxg.com consulting service