咨询电话:0554-4991161
技术服务
联系我们

电话:0554-4991161
手机:18175036696 
         13588259339
传真:0554-4991161
地址:寿县炎刘镇二环
路与新桥大道路口向东100米

当前的位置:网站首页 >> 技术服务 >> 技术服务 技术服务

钢结构防火涂料的分类

发布时间:2015-8-28 10:06:14 浏览次数:885



  厚型钢结构防火涂料(H类)的涂层厚度为7~45mm,它们呈现粒状面,密度较小,涂层受热不发泡,依靠其较低的导热率来延缓钢结构温升,起到防火保护作用,耐火极限可达0.5~3.0h,通常称这种涂料为钢结构防火隔热涂料。两类涂料具有不同的性能特点,分别适用于不同场合。所有钢结构防火涂料又分为室内和室外两种使用类型。

 

按GB14907-2002《钢结构防火涂料通用技术条件》的分类,钢结构防火涂料根据其涂层的厚度和性能特点可分为:超薄型、薄涂型和厚型三类。超薄型钢结构防火涂料(CB类)的涂层厚度不大于3mm,薄涂型钢结构防火涂料(B类)的涂层厚度为3~7mm,这两类涂料在火灾时能吸热膨胀发泡,形成泡沫状炭化隔热层,从而阻止热量向钢结构传递,延缓钢结构温升,起到防火保护作用。通常称这两种涂料为钢结构膨胀型防火涂料。




Thick steel structure fire retardant coating thickness (H) for 7 ~ 45 mm, they present granular surface, density is small, no foaming coating is heated, relying on its low thermal conductivity to delay the temperature rise of the steel structure, fire protection, fire resistance limit of 0.5 ~ 3.0 H, often refer to this kind of coating for steel structure fire insulation coating. The performance characteristics of two kinds of coatings with different, suitable for different occasions. All steel structure fire retardant coatings is divided into indoor and outdoor use two kinds of types.

According to the steel structure fire retardant coatings GB14907-2002 general technical conditions ", the classification of steel structure fire retardant coating according to the coating thickness and performance characteristics can be divided into: ultra thin, thin coating type and heavy type three categories. Ultra-thin steel structure fire retardant coating (CB), the coating thickness is not more than 3 mm, thin coating of steel structure fire retardant coating (B class) of coating thickness is 3 ~ 7 mm, these two kinds of coating during a fire can heat expansion foam, the formation of foamy coking heat insulation layer, so as to prevent heat transfer to the steel structure, slow temperature rise of the steel structure, fire protection effect. Often refer to these two kinds of coating expansion type fire retardant coatings for steel structure.



寿县合兴钢结构有限公司是专业从事安徽钢结构,合肥彩钢瓦,寿县钢结构,合肥钢结构公司

官方网站:http://www.sxhxgjg.com


最新内容:

版权所有:寿县合兴钢结构有限公司 合肥网络布线
电话:0554-4991161    手机:18175036696  13588259339

传真:0564-4991161  地址:寿县炎刘镇二环路与新桥大道路口向东100米 网站地图