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Impact-resistant plastic pipe

A technology for plastic pipes and inner pipes, applied in pipes, rigid pipes, pipes/pipe joints/fittings, etc., can solve the problems of poor internal pressure resistance, insufficient ring rigidity, and easy cracking, so as to prevent impact, Improved surface quality and good mechanical vibration resistance

Inactive Publication Date: 2012-04-18
KANGTAI PLASTIC SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary extruded polyvinyl chloride double-wall corrugated pipes have insufficient ring stiffness, which generally can only reach S1 level, and the internal pressure resistance is poor, only reaching 0.25MPa, so it is prone to cracking during normal use, especially when used in transportation Fluids with internal pressure medium
It often causes unnecessary economic losses; moreover, under the same ring stiffness conditions, the quality of high-impact bellows is lighter than that of ordinary bellows, which is convenient for transportation and installation.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Both the outer pipe 1 and the inner pipe 2 are polyvinyl chloride materials with the following weight ratio:

[0041] 100 parts of polyvinyl chloride;

[0042] Impact resin MBS 20 parts;

[0043] 5 parts of calcium carbonate;

[0044] 1 part of calcium zinc stabilizer;

[0045] 0.5 parts of polyethylene wax;

[0046] 3 parts of rutile titanium dioxide.

Embodiment 2

[0048] Both the outer pipe 1 and the inner pipe 2 are polyvinyl chloride materials with the following weight ratio:

[0049] 150 parts of polyvinyl chloride;

[0050] Impact resin MBS 20 parts;

[0051] 10 parts of calcium carbonate;

[0052] 1 part of composite lead stabilizer;

[0053] 0.5 parts of polyethylene wax;

[0054] 2 parts of rutile titanium dioxide.

Embodiment 3

[0056] Both the outer pipe 1 and the inner pipe 2 are polyvinyl chloride materials with the following weight ratio:

[0057] 120 parts of polyvinyl chloride;

[0058] Impact resin MBS 30 parts;

[0059] 8 parts of calcium carbonate;

[0060] 1.2 parts of calcium zinc stabilizer;

[0061] 0.6 parts of polyethylene wax;

[0062] 2.5 parts of rutile titanium dioxide.

[0063] Each embodiment of table 1 and comparative example test piece performance

[0064]

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PUM

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Abstract

The invention discloses a plastic pipe, in particular to an impact-resistant plastic pipe. The impact-resistant plastic pipe can resist high impact strength, and comprises an inner pipe and an outer pipe, wherein the outer pipe is sheathed on the inner pipe and connected with the inner pipe into a whole body; the inner pipe is in a circular shape; and the inner wall of the outer pipe is continuously provided with depressions. A hollow position is formed between the continuously arranged depressions and the outer wall of the inner pipe, and the outer pipe in the hollow position forms an archedstructure, thus, while withstanding an impact force, the arched structure can deform to absorb the impact force and prevent the inner pipe form being impacted. In addition, the inner diameter of the circular inner pipe is constant, and the fluid can be transported more stably. The inner pipe and the outer pipe can be pressed into a whole body, thus the plastic pipe is easy to be machined.

Description

technical field [0001] The invention relates to a plastic pipe, especially an impact-resistant plastic pipe. Background technique [0002] With the continuous advancement of urbanization in my country, the demand for water supply and drainage pipes has expanded, and the performance requirements for corrugated pipes have also increased, especially the impact strength. Ordinary extruded polyvinyl chloride double-wall corrugated pipes have insufficient ring stiffness, which generally can only reach S1 level, and the internal pressure resistance is poor, only reaching 0.25MPa, so it is prone to cracking during normal use, especially when used in transportation Fluids with internal pressure medium. It often causes unnecessary economic losses; moreover, under the same ring stiffness conditions, the quality of high-impact bellows is lighter than that of ordinary bellows, which is convenient for transportation and installation. Contents of the invention [0003] The technical pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L9/12
Inventor 林云青张文霖郝洪波
Owner KANGTAI PLASTIC SCI & TECH GRP