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隧道防火涂料施工基材怎么处理才合理?
发表时间:2018-09-06 13:32:01来源:/

隧道防火涂料施工前 , 应将建筑底材的灰尘、杂物等打扫干净 , 缝隙应用防火涂料或其他防火材料填补平 , 钢结构表面应除锈 , 并根据要求确定防锈处理措施等。

Before the construction of tunnel fire retardant coatings, the dust and sundries of building substrates should be cleaned, the cracks should be filled with fire retardant coatings or other fire retardant materials, the surface of steel structures should be rust-proof, and anti-rust measures should be determined according to requirements.
2. 1 钢材的表面处理   钢铁器件由于加工和贮运等过程而使表面存在铁锈、焊渣、油污、机械污物以及旧漆膜等残余物 , 为了提高涂层的防锈和防腐蚀能力 , 表面处理非常重要。  去除金属工件表面的油污 , 可增强涂料的附着力。隧道防火涂料施工根据油污情况 , 选用成本低、溶解力强、毒性小且不易燃的溶剂。常用的有 200 号石油溶剂油、松节油、三氯乙烯、四氯乙烯、四氯化碳、二氯甲烷、三氯乙烷、三氟三氯乙烷等。
2.1 Surface treatment of steel and iron components due to processing and storage and transportation process, there are rust, welding slag, oil, mechanical dirt and old paint film and other residues on the surface. In order to improve the anti-rust and anti-corrosion ability of the coating, surface treatment is very important. Removing the oil stain on the surface of the metal workpiece can enhance the adhesion of the coating. Tunnel fire retardant coating construction according to the oil pollution situation, select low cost, strong solubility, low toxicity and non-flammable solvents. Commonly used are 200 petroleum solvent oil, turpentine, trichloroethylene,
tetrachloroethylene, carbon tetrachloride, dichloromethane, trichloroethane, trifluorotrichloroethane and so on.
专业防火涂料施工销售
2. 2 除锈   彻底清除钢材表面的锈垢 , 以延长涂膜的使用寿命。不同的钢铁器件表面有不同的除锈标准 , 它是按照除锈后钢材表面清洁度分级的。 除锈的方法主要有 :
2.2 remove rust and thoroughly remove rust and scale on the surface of steel so as to prolong the service life of coating. There are different standards for rust removal on the surface of different steel components. It is classified according to the cleanliness of the steel surface after rust removal. Rust removal methods include:
(1) 手工打磨除锈 , 能除去松动、翘起的氧化皮 , 疏松的锈及其他污物。在施工现场经常使用。
(1) manual grinding and rust removal can remove loose, raised oxide scales, loose rust and other dirt. It is often used at construction sites.
(2) 机械除锈 , 借助于机械冲击力与摩擦作用 , 使制件表面除锈。可以用来清除氧化皮、锈层、旧漆层及焊渣等。其特点是操作简便 , 比手工除锈 效率高。通常采用喷砂除锈 ,是一种重要的除锈方式。隧道防火涂料施工绝大部分采用喷砂除锈,以满足设计要求。
(2) mechanical derusting, by means of mechanical impact and friction, makes the surface rust of the workpiece. It can be used to remove oxide scale, rust layer, old paint layer and welding slag. Its characteristics are simple operation, higher efficiency than manual rust removal. Usually sandblasting is an important way to remove rust. Most of the tunnel fire retardant coatings are constructed by sandblasting and rust removal to meet the design requirements.
本文由 专业防火涂料施工销售友情奉献.更多有关的知识请点击:最真诚的态度.为您提供最为全面的服务.更多有关的知识我们将会陆续向大家奉献.敬请期待
This article is dedicated by professional fire retardant coatings sales friendship. More relevant knowledge please click: the most sincere attitude. To provide you with the most comprehensive service. More relevant knowledge we will be dedicated to you. Please look forward to

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