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一、引言多年来,在国内的通风空调工程中,风管材质基本上可分为两大类,即镀锌钢板风管和玻璃钢风管,目前,在大多数工程中,均使用前者。镀锌钢板风管主要是在施工现场制作加工,风管造型制作灵活,寿命长,但在潮湿环境中,较易腐蚀生锈,而玻璃钢风管则容易老化,且易损。近几年来,出现了很多种复合风管,但是都存在一定的局限性,并没有在很大范围得到推广应用。在总结实践经验的基础上,经过对原玻璃钢风管进行改进和调整,在原材料上采用
I. INTRODUCTION Over the years, in the domestic ventilation and air conditioning projects, duct materials can basically be divided into two categories, that is, galvanized steel duct and fiberglass duct. Currently, in most projects, the former is used. Galvanized steel duct is mainly made at the construction site processing, duct modeling flexibility, long life, but in wet conditions, more prone to corrosion rust, and FRP duct is easy to aging, and vulnerable. In recent years, there are many kinds of composite duct, but there are some limitations, and not widely promoted. On the basis of summing up practical experience, after the original FRP duct to improve and adjust the use of raw materials