Built-in type hot melt belt connection method of steel plastic composite tube with outer wall possessing vertical reinforcing rib

A steel-plastic composite pipe and connection method technology, which is applied in the direction of manufacturing tools, workpiece clamping devices, etc., can solve the problems of connection damage, low efficiency, complicated and difficult production, etc.

Inactive Publication Date: 2007-03-07
ハルビンスターウェイマシーナリーマニュファクチャリングカンパニーリミテッド
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this connection method is complex and difficult to manufacture and has low efficacy; secondly, the welding labor intensity of on-site construction is high, and the welding strength is low
When the length of the pipe changes due to thermal expansion and contraction, or the pipe deforms and moves due to soil subsidence or groundwater uplift, the stress generated at the pipe connection can easily cause the fillet weld between the socket and the pipe to be torn and cause the connection destroy

Method used

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  • Built-in type hot melt belt connection method of steel plastic composite tube with outer wall possessing vertical reinforcing rib
  • Built-in type hot melt belt connection method of steel plastic composite tube with outer wall possessing vertical reinforcing rib
  • Built-in type hot melt belt connection method of steel plastic composite tube with outer wall possessing vertical reinforcing rib

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Experimental program
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Effect test

Embodiment Construction

[0012] Figure 1 is a schematic diagram of a steel-plastic composite pipe built-in hot-melt belt connection with vertical ribs on the outer wall. After the two sections of steel-plastic composite pipes 1 connected in the figure are aligned, the hot-melt tape 2 is covered on the inner wall of the pipe. When covering the hot-melt belt 2, the side of the hot-melt belt covered with the metal electric heating wire mesh faces the inner wall of the pipeline, and the hot-melt belt 2 and the inner wall of the connecting pipe 1 are pressed and fitted with a special inner support device 4 . After the electric heating wire 3 in the hot-melt belt 2 is passed the current required by the process with a special power supply, a layer of plastic on the bonding surface between the inner wall of the tube and the hot-melt belt will be melted, and then the power is turned off, and the plastic to be melted is cooled. The inner walls of the latter two sections of pipes will be integrated with the hot ...

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Abstract

The invention relates to an internal fusion band connecting method of steel plastic composite tube whose outer wall has vertical strengthened rib. Wherein, it comprises that first arranging the fusion band (2) on the connection part of inner wall of composite tube; arranging support (4) at relative position; moving the support rod (6) of support (4) outwards, until the support plate (5) compresses the fusion band (2) contacted with inner wall of tube; connecting the wire terminal (8) of fusion band (2) and the power, to heat the fusion band (2) to weld the fusion band (2) and the inner wall of tube. The invention can avoid stress at the connection part to crack the corner seam, with simple process and reliable connection.

Description

technical field [0001] The invention relates to the connection of composite pipes, especially the connection of steel-plastic composite pipes formed by winding with vertical reinforcing ribs on the outer wall. technical background [0002] For the connection of plastic pipes, a simple and reliable connection method is often selected according to the manufacturing method of the pipe and the structural characteristics of the pipe wall. [0003] For the double-wall corrugated drainage pipe produced by extrusion, because it is convenient to make a socket at the pipe end, the connection method of socket and rubber ring seal is adopted. For the pure plastic special-shaped strip produced by extrusion, the hollow winding drainage pipe formed by winding and welding, because its outer wall is flat, it adopts heat shrinkable tape winding outsourcing, rubber ring plus stainless steel loop and electric heating. A variety of connection methods such as melting belt outsourcing and welding...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C65/34B25B11/00
Inventor 何轶良
Owner ハルビンスターウェイマシーナリーマニュファクチャリングカンパニーリミテッド
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