无极3无极3注册官网

categories of news

Product Categories

contact us

Lumu Qiyuxin Longbang Coating Co., Ltd.

Free consultation hotline: 400-6785-119

Phone: 0991-3750189

Mobile phone: 15099105069

Fax: 0991-3729572

Address: No. 46, Jinsha Fourth Lane, Xuanrendun First Team, Xinshi District, Urumqi

Website: haoyi007.com


Types of fire-resistant coatings for steel structures in Xinjiang

Your current location : Home >> News >> Industry News

Types of fire-resistant coatings for steel structures in Xinjiang

来源: http://haoyi007.com点击: Date: 2019-08-30 16 : 53Source : http : //haoyi007.comClick :

Types of fire-resistant coatings for steel structures in Xinjiang

Classification of fire-resistant coatings for steel structures
Steel structure fireproof coatings can be divided into three categories according to thickness: thick-coated steel structure fireproof coatings, thin-coated steel structure fireproof coatings, and ultra-thin steel structure fireproof coatings.
Coating thickness of various types of steel structure fireproof coatings
The thickness of fire-resistant coatings for thick steel structures is 8 to 50 mm, the thickness of fire-resistant coatings for thin steel structures is 3 to 7 mm, and the thickness of fire-resistant coatings for ultra-thin steel structures does not exceed 3 mm.
3. Fire resistance limit of various types of steel structure fireproof coatings
The national regulations for thin steel structure fireproof coatings are up to 2.5 hours, thick steel structure fireproof coatings can reach a fire resistance limit of 3.0 or more, and ultrathin steel structure fireproof coatings have a fire resistance limit of less than 2 hours.
Fourth, the decorative nature of various types of steel structure fireproof coatings
The decorative properties of thick steel structure fireproof coatings are not good. The thin steel structure fireproof coatings have a certain decorative effect. The decorative properties are better than the thick fireproof coatings. They are inferior to the ultrathin steel structure fireproof coatings. it is good.
Fifth, the fire protection principle of various types of steel structure fireproof coating
1. Fire protection principle of thick steel structure fireproof coating:
Thick steel structure fireproof coating is also called non-intumescent fireproof coating. Its main component is inorganic thermal insulation material, which presents a granular surface, has a small density, and the coating does not expand when heated. Because of its good thermal insulation, it is also called thermal insulation. Fire-resistant paint. The fire prevention mechanism is to use the inherent good thermal insulation of the coating to prevent the heat of the fire from being transmitted to the steel. At the high temperature, a densely structured glaze can be formed, which can effectively block oxygen and reflect heat and delay the temperature rise of the steel structure. Play a fire protection role.
2. Fire protection principle of ultra-thin and thin steel structure fire protection coating:
Thin and ultra-thin fire-resistant coatings for steel structures, also known as intumescent fire-resistant coatings, are mainly composed of base materials, dehydrating agents, carbon-forming agents, and foaming agents. When the temperature rises to a certain level, the dehydrating agent promotes the dehydration of the polyhydroxy compounds. Carbonization, under the action of a large amount of gas released from the decomposition of the foaming agent, the coating expands, and the expansion factor can reach dozens or even dozens of times, forming a dense foamed carbonized heat insulation layer, thereby preventing heat from being transmitted to the steel structure. Play a fire protection role.
Application scope of various types of fireproof coatings for steel structures
1. Thick steel structure fireproof coatings are suitable for indoor and outdoor concealed steel structures, high-rise all-steel structures and multi-story factory steel structures with a fire resistance limit of 2 hours or more. For example, the fire resistance limit of high-rise civil building columns, general industrial and civil buildings supporting multi-layer columns should reach 3 hours, and the thick fire-resistant coating should be used for protection.
2. Thin steel structure fire protection coatings are commonly used in steel structure fire protection projects with fire resistance less than 2 h.
3. Ultra-thin steel structure fireproof coatings are used in steel structure fire protection projects with a fire resistance limit of less than 2 hours.

新疆钢结构 Xinjiang fireproof coating construction

Related tags: Fire- resistant coatings for steel structures

Recently Viewed:

    New Public Network Security No.65010402000504

    腾讯分分彩龙虎和哪个平台可以玩 怎么才可以做河内五分彩代理 鸿运棋牌官网 好牛娱乐网 远华亚洲无极3无极3注册官网 五星棋牌体现 游戏厅电玩 手机挣钱的方法 速发彩票在线客服 数亿2娱乐平台注册开户登录