论文部分内容阅读
在联邦德国,除化学工业以外,玻璃钢大口径管道至今还没有受到重视。因此,在大口径下水管道的制造中,仍然主要采用混凝土或石棉混凝土,尽营这些材料总是满足不了要求,例如达不到防止污水不断侵蚀的要求等。多年以来,在其它的欧洲国家及非欧洲国家中,公称直径从600到3000毫米范围的大口径玻璃钢管道,已经成功地应用在污水处理和排水工程领域以及石油工业中。到
In the Federal Republic of Germany, with the exception of the chemical industry, FRP large-diameter pipes have not yet received attention. Therefore, in the manufacture of large-diameter sewage pipelines, concrete or asbestos concrete is still mainly used. To fully manage these materials, they cannot always meet the requirements. For example, they cannot meet the requirements for preventing the continued erosion of sewage. For many years, in other European countries and non-European countries, large-diameter glass-fiber pipes with nominal diameters ranging from 600 to 3000 mm have been successfully used in the fields of sewage treatment and drainage engineering and the petroleum industry. To