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Structure-wall tubular product with high ring stiffness and molding method

A technology for structural wall pipes and rigidity, applied to rigid pipes, pipes, pipes/pipe joints/fittings, etc., can solve the problems of poor pressure bearing capacity, damage, high production cost of pipes, etc., to reduce pipe wall thickness and reduce manufacturing costs , product quality can be good effect

Inactive Publication Date: 2011-09-14
刘华新
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As one of the key properties of the structural wall pipe, the ring stiffness directly affects the use effect of the structural pipe: if the ring stiffness is too small, the bearing capacity of the pipe is poor, and it is prone to excessive deformation or buckling instability, which will cause the pipe to be damaged
In order to improve the ring stiffness of the structural wall-expanding pipe, the method of adding reinforcing ribs to the outer surface of the pipe is generally adopted. However, since the reinforcing ribs and the pipe wall of the structural wall pipe are all hollow rib structures, the ring stiffness of the structural wall pipe is not high. The poor pressure bearing capacity directly affects the use effect of the pipe; and the use of a larger section moment of inertia to increase the ring stiffness of the pipe will inevitably lead to an increase in materials used and the production cost of the pipe will be too high

Method used

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  • Structure-wall tubular product with high ring stiffness and molding method
  • Structure-wall tubular product with high ring stiffness and molding method
  • Structure-wall tubular product with high ring stiffness and molding method

Examples

Experimental program
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Effect test

Embodiment 1

[0019] Such as figure 1 , figure 2 As shown, the wall pipe with high ring stiffness structure is a double-wall corrugated pipe 1, including a smooth inner wall and a winding pipe 101 spirally wound on the smooth inner wall 1, and the hollow part of the winding pipe 101 is filled with asphalt 102.

Embodiment 2

[0021] Such as image 3 , Figure 4 As shown, the wall pipe with high ring stiffness structure is a skeleton pipe 2 , and the pipe wall of the skeleton pipe is a spiral skeleton hollow structural pipe 201 filled with asphalt 202 .

Embodiment 3

[0023] Such as Figure 5 , Figure 6 As shown, the wall tube with high ring stiffness structure is a carat tube 3 , which includes a smooth inner wall and a helical hollow tube 301 spirally wound on the smooth inner wall 1 , and the hollow part of the helical hollow tube 301 is filled with asphalt 302 .

[0024] The forming method of the wall pipe with high ring stiffness structure of the present invention is as follows:

[0025] First, fix the pipe (double-wall corrugated pipe, skeleton pipe or carat pipe), (1) wind the pipe 101 on the double-wall corrugated pipe 1, open the feed port at one end, and open the exhaust port at the other end, and then mix the asphalt Pressurize the injection from the feed inlet until the asphalt is discharged from the exhaust port with a small amount of pressure and then stop the injection. After the asphalt is solidified, the high ring rigidity structure pipe 2 is obtained; (3) in the spiral hollow pipe 301 of the carat pipe 3 Open the feed p...

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Abstract

The invention relates to a structure wall tube with high ring stiffness, belonging to the technical field of water supply and drainage plastic tube product with a heavy caliber. The technical problems of low ring stiffness or over-high production cost of the structure tubular product in the prior art are solved. The structure wall tube with high ring stiffness comprises an outer tube wall formed by the spiral winding of a hollow tube with a small caliber, and is characterized in that the hollow tube with the small caliber is internally filled with asphalt. The structure wall tube with high ring stiffness has the advantages of high ring stiffness, low production cost and the like.

Description

technical field [0001] The invention relates to a structural wall pipe, in particular to a structural wall pipe with good ring rigidity and high ring stiffness, belonging to the technical field of large-diameter plastic pipes for water supply and drainage. Background technique [0002] At present, geographical plastic water supply and drainage pipes are usually wall pipes of various structures, such as double-wall corrugated pipes, steel belt reinforced pipes, carat pipes, winding pipes, etc. As one of the key properties of the structural wall pipe, the ring stiffness directly affects the use effect of the structural pipe: if the ring stiffness is too small, the bearing capacity of the pipe is poor, and it is prone to excessive deformation or buckling instability, which will cause the pipe to be damaged. In order to improve the ring stiffness of the structural wall-expanding pipe, the method of adding reinforcing ribs to the outer surface of the pipe is generally adopted. Ho...

Claims

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Application Information

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IPC IPC(8): F16L9/16F16L9/18
Inventor 刘华新
Owner 刘华新