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排水管是怎么连接的,要注意哪些?

作者: admin    来源:http://www.laobingguandao.com  时间:2019-07-08    人气:
  PE排水管道通常采用热熔连接,主要工艺流程为调节、加热、切换、拧紧、增压、冷却。
  PE drainage pipes are usually connected by hot melt. The main technological processes are regulation, heating, switching, tightening, pressurization and cooling.
  PE排水管道的热熔连接方法是将两个相同的连接界面与热板加热至粘性流动状态,取出热板,对连接界面施加一定的压力,在压力状态下冷却凝固,形成牢固的连接。界面粘性流动物质在对接过程中流动扩散。流量过大不利于扩散和缠绕。
  The hot melt connection method of PE drainage pipeline is to heat two identical interface and hot plate to viscous flow state, take out hot plate, exert certain pressure on the interface, cool and solidify under pressure state, and form a solid connection. Flow and diffusion of interfacial viscous flow substances in docking process. Excessive flow rate is not conducive to diffusion and winding.
  因此,应将流量限制在一定范围内,以达到“焊后”流量有限的目的。
  Therefore, the flow rate should be limited to a certain extent in order to achieve the purpose of limited flow after welding.
  这个过程的关键是调整对接过程中的温度、时间和压力,并考虑界面材料的性能、应力、几何形状和环境条件。
  The key of this process is to adjust the temperature, time and pressure in the docking process, taking into account the properties, stress, geometry and environmental conditions of the interface material.
  高密度聚乙烯管道连接常用的方法有对接接头、焊接接头和带密封圈的承插接头。
  The common methods of high density polyethylene pipe connection are butt joint, welded joint and socket joint with sealing ring.
  管道连接、螺纹连接、电线胀套连接、法兰连接。
  Pipeline connection, thread connection, wire expansion sleeve connection, flange connection.
双扣聚氯乙烯增强管
  这些连接各有其独特的性能特点,使用场合和安装方式也不尽相同。
  Each of these connections has its own unique performance characteristics, the use of occasions and installation methods are also different.
  对焊接头适用于所有直径32-315mm的管道。
  Butt welded joints are suitable for all pipes with diameters of 32-315mm.
  连接的特点是刚性连接,不拆卸,抗拉性好。
  The connection is characterized by rigid connection, no disassembly and good tensile strength.
  对接焊接是管道连接的一种有效方法。
  Butt welding is an effective method for pipeline connection.
  这为整个系统的预制和安装提供了方便和有利的先决条件,而不需要其他组件。
  This provides a convenient and advantageous prerequisite for the prefabrication and installation of the whole system without the need for other components.
  因此,无论组件是安装在现场还是在工厂区域,都可以选择对焊。
  Therefore, butt welding can be selected whether the components are installed on site or in the factory area.
  对焊焊接截面不大,焊接边缘不易干挠性管道,管道内部截面始终相同。
  The butt welding section is small, the welding edge is not easy to dry flexible pipeline, and the internal section of the pipeline is always the same.
  焊接表面的允许厚度与管壁的允许厚度基本相同。
  The allowable thickness of welded surface is basically the same as that of pipe wall.
  选择焊接工艺可灵活使用管道长度和弯头接头。
  Pipeline length and elbow joint can be flexibly used by selecting welding process.

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