鋼材外觀非常堅固可靠，但如果不采取任何防火措施，一旦發(fā)生火災(zāi)就會非常脆弱，強(qiáng)度會下降。那么，怕火的輕型鋼結(jié)構(gòu)應(yīng)該如何做好防火保護(hù)呢？下面濟(jì)南輕型鋼結(jié)構(gòu)廠家為您講解。

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.隔熱方法

1、 Thermal insulation method

用耐火材料包裹鋼結(jié)構(gòu)工廠。包裝材料有混凝土、輕質(zhì)耐火混凝土、鋼絲網(wǎng)砂漿等，具有取材方便、價格低廉、表面強(qiáng)度高、抗沖擊性能強(qiáng)、對鋼結(jié)構(gòu)廠房施工技術(shù)要求不高、但重量較重的優(yōu)點(diǎn)。

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.熱阻法

2、 Thermal resistance method

其原理是隔絕或隔絕火災(zāi)產(chǎn)生的熱量，使鋼結(jié)構(gòu)工廠裝配件規(guī)定內(nèi)的溫升不超過臨界溫度。

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.

方法是在組件表面設(shè)置保溫材料?；馂?zāi)中產(chǎn)生的高溫首先傳遞到這些保溫材料，然后從保溫材料傳遞到組件。保溫材料的熱傳導(dǎo)率小，因此需要保護(hù)，以免熱流傳遞到部件。

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.熱傳導(dǎo)法

3、 Heat conduction method

該方法通過填充新截面，將火災(zāi)時吸收的熱量傳遞給水，通過水的蒸發(fā)驅(qū)散熱量，或通過循環(huán)消除熱量，起到保護(hù)鋼結(jié)構(gòu)廠房構(gòu)件溫度保持在100左右，避免框架溫度上升到臨界溫度的作用。

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.噴霧方法

4、 Spray method

可以使用涂料器具將防火涂料直接涂在鋼結(jié)構(gòu)構(gòu)件表面，在火災(zāi)時形成耐火保護(hù)層。目前，大型鋼結(jié)構(gòu)采用兩種方法。厚涂防火涂層厚度為8-50mm，密度低，導(dǎo)熱系數(shù)低，涂料本身的隔熱性能可大大提高鋼梁的耐火性能，提高到0.5-3h。對于面漆，涂層厚度不超過7mm，該涂料具有一定的裝飾性能，通過涂層高溫膨脹發(fā)泡形成的耐火隔熱層，可以提高鋼梁的耐火性能。

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.

輕型鋼結(jié)構(gòu)防火燃料的一般要求是提前檢查原料，盡量避免使用商業(yè)材料和苯溶劑。合格的防火涂料須為堿性，底層涂料可與一般防銹涂料一起使用，曬干后不能有刺激性的氣味。更多相關(guān)內(nèi)容就來我們網(wǎng)站http://www.hsmjh.com咨詢！

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.hsmjh.com consulting service