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pvc缠绕管电热熔带链接步骤!

作者: admin    来源:http://www.laobingguandao.com  时间:2020-01-03    人气:
  PVC缠绕管应将连接的两根管道的两端对齐,并尽可能靠近同一轴线。当管道椭圆度较大时,两根管道的长度和长度轴应尽量对应。使用配套机器将电热熔带铺设在两根管道连接的内壁上。热熔带材宽度方向的线应尽可能与端子对在同一垂直面上。
  PVC spooled pipes shall align both ends of the two pipes connected and be as close to the same axis as possible. When the pipe ovality is large, the length and length axis of the two pipes should be corresponding as much as possible. The matching machine is used to lay the electrothermal melting belt on the inner wall of the connection of the two pipes. The center line of the width direction of the hot melt strip shall be aligned with the terminal on the same vertical plane as far as possible.
  所述PVC缠绕管与电热熔带连接,所述间隙内填充所述仿热熔板;打开支撑机,将电热熔带撑圆,均匀压紧管道内壁,机器的所有压片应整齐覆盖并压在热熔带上,不得遗漏。将热熔焊机(电源)与电热熔带电加热电路连接,并根据管道厂家提供的电流、通电时间等焊接工艺参数进行电加热焊接。在电加热焊接过程中,电流可能会有一定的连续稳定的还原过程,但不应出现起落突变。电热熔带熔焊区的表面温度应在圆周上相对均匀。如有异常情况,应详细检查接头,并采取相应措施。焊接后进行自然冷却(一般≥40min)。焊接机具在冷却过程中不得移动,焊接接头不得受外力作用。冷却后,即可拆卸机床。
  The PVC winding pipe is connected with the electrothermal melting belt, and the gap is filled with the thermotropic melting plate; open the support machine, round the electrothermal melting belt, and press the inner wall of the pipe evenly, and all the laminations of the machine shall be neatly covered and pressed on the hot melting belt without omission. Connect the hot-melt welding machine (power supply) with the hot-melt electrified heating circuit, and conduct electric heating welding according to the welding process parameters such as current and power on time provided by the pipeline manufacturer. In the electric heating welding process, the current may have a certain continuous and stable reduction process, but there should be no sudden rise and fall. The surface temperature of the welding zone of the electric heating melting zone shall be relatively uniform on the circumference. In case of any abnormality, the joint shall be checked in detail and corresponding measures shall be taken. After welding, conduct natural cooling (generally ≥ 40min). The welding machines and tools shall not move during the cooling process, and the welding joints shall not be affected by external forces. After cooling, the machine tool can be removed.
HDPE双平壁钢塑复合缠绕管
  PVC缠绕管的连接方式是通过特殊的热风挤压焊接工具和挤压焊条对相邻管道进行加热,使聚乙烯材料熔成一个整体的连接方式,属于刚性连接。由交联材料制成的热收缩带经火焰加热,使热收缩带内表面与管外表面的热熔胶粘结在一起。
  The connection mode of PVC winding pipe is to heat the adjacent pipes with special hot air extrusion welding tool and extrusion welding rod, so that the polyethylene material can be melted into a whole connection mode, which belongs to rigid connection. The heat shrinkable tape made of cross-linked material is heated by flame, so that the inner surface of the heat shrinkable tape is bonded with the hot-melt adhesive on the outer surface of the tube.
  夹紧(haf-sleeve)连接:套筒与管外壁之间的橡胶密封圈连接方式为刚性连接,将外套筒的两半用相邻管端部的螺栓紧固。与卡箍(haf-sleeve)连接时,由于管道外壁为螺旋波纹,必须在连接管道的波纹端填充膨胀水的橡胶塞。harf套管应具有防腐蚀能力和限位装置,以确保harf套管长期使用,不能在管道外壁上移动或滑动。
  HAF sleeve connection: the rubber sealing ring between the sleeve and the outer wall of the tube is connected in a rigid way, and the two halves of the outer sleeve are fastened with bolts at the ends of adjacent tubes. When connecting with the clamp (HAF sleep), because the outer wall of the pipe is spirally corrugated, the corrugated end of the connecting pipe must be filled with rubber plug of expansion water. Harf casing shall have anti-corrosion ability and limit device to ensure that harf casing can not move or slide on the outer wall of the pipeline for a long time.

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