Screw type corrugated plastic pipe material and its manufacturing method

Screw type corrugated plastic pipe material and its manufacturing method

CN
  • CN 1,414,277 A
  • Filed: 11/18/2002
  • Published: 04/30/2003
  • Est. Priority Date: 11/18/2002
  • Status: Active Application
First Claim
Patent Images

1. screw type corrugated plastic pipe material, the outer convex rib shape reinforced structure that the spiral wrap style is arranged on the outer circumferential face of structural pipe wall, the tube wall that it is characterized in that tubing (1) be by be the axis strip sheet material (2) of making the spiral wrap style with its center line with each the adjacent sheet edge in its spiral circumference successively mutually overlap joint merge the continuous solid wall pipe shape structure that forms, merge the mode of stitching on (3) position, place with the overlap joint of cross-pressure and be bonded on the outer circumferential face of tube wall to make outer convex rib shape reinforced structure (4) that same spiral twines form in each adjacent sheet edge on the tube wall.

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