“熔接、溶接、接”塑料给水管材安装技术分析.doc

“熔接、溶接、粘接” 塑料给水管材安装技术分析 [摘要] 本文从实践出发介绍PP-R无规共聚聚丙烯ABS塑料系丁二烯—丙烯腈—苯乙烯组成的三元共聚物硬质聚氯乙烯PP-R给水管 采用的是热熔连接技术，施工过程中，热熔器加热后，将材料原本紧密连接的分子链融化，然后在稳定的压力下，将两个部件连接并固定，在部件融合的地方有拉缝压力产生，在拉缝压力的作用下，融化的分子链材料冷却时，分子链开始重新连接，使两个部件连接位一个整体现在比较安全中的高分子体就依靠相互间的拉力，将两个物体紧紧的结合在一起PVC管是塑料管道业里使用最广泛的产品这是非常重要的一个把管材笔直的插入承插口直达记号线 3.3 U-PVC给水管 UPVC管材安装步骤基本与ABS管材相似,不同是有机溶合剂换成有机胶粘剂, 管子与管件承插时，必须插到管件承口底部，不需要预留空隙。胶粘剂虽然不会直接溶解管材,但施工也要注意控制其用量,管道接口处内用量多了，会影响管内壁的光滑度，增大水头阻力，管道接口处外表用多了，会影响其外表美观,把握好胶粘剂用量，其实质就是降低能耗、降低施工成本、爱护环境的有效技术措施。 4、结束语 为了使塑料建筑给水管道产品在工程应用中达到技术先进、经济合理、安全适用、确保产品应用的最佳效能，除了对产品质量的严格控制外，更需加强对设计、施工方面工程质量的控制。在目前推广的塑料给水管道中，大多数材料(如、、、PB、PE等)的塑料给水管道尚无国家产品标准及相应的设计与施工验收规程，仅有UPVC给水管道从产品标准(管材GB/T 10002.1-2006，管件GB10002.2－88)到设计与施工验收规程(CECS41：92，CECS17／18：90)，目前推广的塑料 “熔接、溶接、粘接” 塑料给水管材安装技术分析 urban area 2.5.2 Yibin city in Yibin city, according to resource and environment characteristics Urban population and urban spatial distribution, spatial distribution of industries, major infrastructure Corridor layout, combined with the future development trend of synthetic judgments, planning, urban spatial structure of urban system can be summarized as: a pole along the two axes. A refers to the metropolitan area along the Yangtze River, is the core area of the development of the city. Plans to build for the Yangtze River economic belt on the pillar, advancing along the ... Guanghe River, Yiliang, prestige of the external cohesion of zhaotong, Yunnan, internal connecting Yibin city to the North. The Sichuan-Yunnan-Guizhou border area of Yibin, in the city of zhaotong, liupanshui three, zhaotong city, the most populous and most extensive regions, the most economically backward, to the North in Wumeng mountain area of yanjin, shuifu, suijiang counties radiation power is relatively weak. Yibin city and infrastructure in such areas should be strengthened and docking, extending southward to public services, promote the development of mineral resources in Northeast Yunnan, expand our economic hinterland, driving sync