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Guangtong steel structure takes you to understand the classification of fire retardant coatings for steel structure
time2020/05/26
- Up to now, the fire retardant coating for steel structure has basically formed a series of varieties. There are mainly thick coating, thin coating and ultra-thin steel structure fire retardant coating.
Up to now, the fire retardant coating for steel structure has basically formed a series of varieties. Fire retardant coatings for steel structures can be classified by different methods, and can be divided into water-soluble type and solvent type according to the dispersion system used; can be divided into expansion type and non expansion type according to the fire protection form; and can be divided into indoor type and outdoor type in the application scope. According to the thickness, there are thick coating type, thin coating type and ultra-thin type. At present, the commonly used varieties, thick coating type and thin coating type are basically water-soluble, ultra-thin type are water-soluble and solvent type. Thin coating type and ultra-thin type are basically expansion type, while thick coating type is non expansion type. It is representative to classify the thickness of fire retardant coating for steel structure. At present, this classification method is widely used. Next, Guangtong steel structure will introduce thick coating type, thin coating type and ultra-thin fire retardant coating for steel structure.
1、 Thick fire retardant coating for steel structure
Thick coating steel structure fireproof coating is also called steel structure fireproof and heat insulation coating. The so-called thick coating fire retardant coating for steel structure refers to the coating with a thickness of 8 ~ 50mm. The fire endurance of this kind of fireproof coating for steel structure is 1.0 ~ 3H.
2、 Thin coating fire retardant coating for steel structure
The fire retardant coating for steel structure with thickness of 3-7mm is called thin coating fire retardant coating for steel structure. This kind of coating can expand and foam when it is on fire. The fire-resistant insulation layer formed by expansion and foam can delay the temperature rise of steel and protect steel members. However, the foaming rate is not high, the decorative is better than the thick coating type, and the spraying is often used in the construction, which is generally used in the building steel structure with a fire resistance limit of no more than 2H.
3、 Ultra thin fireproof coating for steel structure
The so-called ultra-thin steel structure fire retardant coating refers to the steel structure fire retardant coating with a thickness of no more than 3mm. This kind of steel structure fireproof coating expands and foams to form a dense fireproof insulation layer when it is under fire. The fireproof insulation layer delays the temperature rise of steel and improves the fire resistance limit of steel members. Spray, brush or roll coating can be used for construction, which is generally used for building steel structure with fire resistance limit less than 2H.
Dalian Guangtong Steel Structure Co., Ltd. is a professional enterprise engaged in the design and manufacture of steel structure products and non-standard metal parts. At present, the company has contracted and successfully completed 20 million tons / year of Hengli Petrochemical (Dalian), refining and chemical integration steel structure engineering, Dalian Lushun industrial base construction project machinery and combined plant engineering, South Binhai Avenue West extension line bid section 1 project, Dalian City Control center steel structure and other engineering projects of 219 bid section of Tieyi line project. In addition, the company has successfully completed a number of projects in South Korea, the United States, Japan, Australia and China Railway Group. Guangtong steel structure has dozens of advanced processing and testing equipment. The company's leaders and employees always put the product quality in the first place, adhere to the production quality concept of "high standard, zero defect", and bring the most sincere service to customers with sincere heart. Quality is not only the quality of products, but also the persistence and soul of Guangtong steel structure. Guangtong steel structure practices the production responsibility and social responsibility of the enterprise, and integrates the "quality concept" into all products produced. Strict production and manufacturing standards and quality control have created the best quality of Guangtong steel products.
