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彩涂印花板为什么容易起火

返回列表 来源: 发布日期: 2019.11.06

彩涂印花板为什么容易起火

天物彩板专注定制高端彩板——山东防火彩涂印花板定制_印花板为什么容易起火_天物彩板请拨打网站上方电话咨询

彩钢板具有重量轻、强度高、安装方便等特点目前,在地震灾区广泛用于在施工现场放置板房、工厂、仓库、商店、信息亭和临时房屋但是,近年来,彩钢板引发的火灾以及受铁栅栏和广告牌遮挡影响的火灾,影响了人员的逃生和灭火救援,造成重大人身伤亡和财产损失如何防治彩钢建筑火灾已成为社会关注的问题下面主要介绍引起彩色印刷板着火的一些主要因素。
一对彩钢板的火灾风险和火灾危险性认识不足彩钢夹芯板由彩钢板制成芯材主要为聚苯乙烯、聚氨酯和岩棉前两种是夹在两层钢板之间的不同厚度的聚苯乙烯或聚氨酯一旦材料受到高温火花或明火的影响,就会立即燃烧由于材料本身的蜂窝结构,与空气的接触面会增加,燃烧会非常剧烈在灭火过程中,水和灭火剂只能喷涂在彩钢板外的钢板上,直接作用于中间层的燃烧产物,燃烧产物毒性大,容易造成人员伤亡。由于成本相对较低,这种材料非常受投资者或开发商的欢迎后者夹有两层钢板之间不同厚度的岩棉该材料不燃,具有良好的防火隔热效果但由于其成本相对较高,一般投资者或开发商都不愿意使用。
2部分彩钢板施工项目未经消防部门审查验收,导致彩钢板施工存在先天性隐患在一些工程的施工设计中没有考虑防火设计,或者虽然有防火设计但在施工过程中没有按照图纸施工,工程竣工后未经消防验收,导致几个环节可以检查都忽略不计此外,在招商引资过程中,地方政府更注重资金量而不是程序,默许企业未审查首期建设、未审查首期使用的违法现象而这样的结构建筑在投入使用后很难进行防火处理。
三。业主擅自改变使用功能,增加火灾风险部分彩钢结构厂房在申请消防审查验收时的火灾危险性为丙类,但实际上可能是丙类厂房,也可能是投产初期的丙类生产,但由于生产项目的调整,后期未及时申报如某汽车改装专用厂擅自将彩钢板仓库改为厂房,并在厂房内进行焊接、油漆施工,但未采取特殊防火措施,造成因焊接不慎引发火灾,导致厂房倒塌厂房及巨额财产损失。
四电器安装使用不当也是彩钢板房起火的重要原因彩涂板建筑的火灾原因大多与电器的非法使用、电路老化等直接相关,有的直接安装在彩钢板夹心层内,有的电线穿墙时直接钻穿彩钢板,有的则是易造成电线绝缘层损坏和无护套钻孔引起的短路火灾使用后管理不善,在彩钢板附近使用明火或焊接作业,造成彩钢板内可燃夹层材料燃烧,引发火灾。

Color steel plate has the characteristics of light weight, high strength and convenient installation. At present, it is widely used in the earthquake disaster areas to place plank houses, factories, warehouses, shops, kiosks and temporary houses on the construction site. However, in recent years, the fire caused by color steel plate and the fire affected by the shielding of iron fences and billboards affect the escape and fire fighting and rescue of people, resulting in major personal injuries Death and property damage. How to prevent and control color steel building fire has become a social concern. Below we mainly introduce some main factors that cause the fire of color printing board.

1. Insufficient understanding of fire risk and fire hazard of color steel plate. The color steel sandwich panel is made of color coated steel plate. The core materials are mainly polystyrene, polyurethane and rock wool. The first two are polystyrene or polyurethane with different thickness sandwiched between two layers of steel sheet. Once the material is affected by high temperature spark or open fire, it will burn immediately. Because of the honeycomb structure of the material itself, the contact surface with air will increase and the combustion will be very fierce. In the process of fire fighting, water and fire extinguishing agent can only be sprayed on the steel sheet outside the color steel sheet It can directly act on the combustion products in the interlayer, and the combustion products are very toxic, which is easy to cause casualties. Because of the relatively low cost, such materials are very popular with investors or developers. The latter one is sandwiched with rock wool of different thickness between two layers of steel sheet. The material is non combustible and has good fire and heat insulation effect. However, due to its relatively high cost, the general investors or developers are reluctant to use it.
2. Some color steel plate construction projects have not been reviewed and accepted by the fire department, which leads to the congenital hidden danger of color steel plate construction. In the construction of some projects in the design did not consider the fire design, or although there is a fire design but in the construction process did not follow the drawing construction, after the completion of the project without fire acceptance, resulting in several links can be checked are ignored. In addition, in the process of attracting investment, the local government pays more attention to the amount of capital than the procedure, acquiesces in the illegal phenomenon that the enterprise has not examined the first construction and has not examined the first use, and such structural buildings are difficult to carry out fire prevention treatment after being put into use.
3. The owner changes the use function without permission to increase the fire risk. The fire risk of some color steel structure factory buildings when applying for fire control review and acceptance is class C, but in fact it may be class C factory buildings, or it is class C production at the initial stage of putting into use, but later it is not declared in time due to the adjustment of production projects. For example, a Special Automobile Refitting Factory changed the color steel plate warehouse into a factory building without authorization, and carried out welding and painting construction in the factory building, but did not take any special fire separation measures, resulting in a fire caused by careless welding, resulting in the collapse of the factory building and huge property losses.
4. Improper installation and use of electrical appliances are also the important reasons for the fire in the color steel plate room. Most of the fire causes of color coated printed board buildings are directly related to the illegal use of electrical appliances, aging of circuits, etc., some of which are directly installed in the sandwich layer of color steel plate, some of which are directly drilled through the color steel plate when the wire passes through the wall, and it is easy to cause the damage of the insulation layer of the wire and the short-circuit fire caused by the drilling without sheath. After being put into use, the management is poor, and the use of open fire or welding operation near the color steel plate causes the burning of combustible sandwich materials inside the color steel plate, which leads to the fire.

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