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Thermal-state winding double-wave-peak reinforced spiral corrugated pipe and manufacturing method thereof

The technology of spiral corrugated pipe and corrugated pipe is applied in the field of thermal winding double wave crest reinforced spiral corrugated pipe and its manufacturing field, which can solve the problem of limited bonding between wave crest and pipe body, loss of pressure resistance of pipe material, separation of wave crest and pipe body, etc. problems, to achieve the effect of improving the resistance to internal pressure, easy popularization and application, and improving the stiffness of the overall ring

Pending Publication Date: 2019-08-30
萍乡市大地新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The wave crest of the existing old-fashioned spiral corrugated pipe and its pipe body are secondary composites, and its wave crest is circular (such as figure 1 As shown), it is in point contact with the pipe body, the contact area is relatively small, and the bonding effect between the wave crest and the pipe body is limited. Poor external pressure performance and short service life

Method used

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  • Thermal-state winding double-wave-peak reinforced spiral corrugated pipe and manufacturing method thereof
  • Thermal-state winding double-wave-peak reinforced spiral corrugated pipe and manufacturing method thereof
  • Thermal-state winding double-wave-peak reinforced spiral corrugated pipe and manufacturing method thereof

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specific Embodiment approach ( 1

[0039] Such as Figure 2-9 Shown is a thermally wound double-peak reinforced spiral corrugated pipe provided by the present invention, which is characterized in that it includes a corrugated pipe body 1 and a double-peak spiral reinforced layer 2 helically wound on the outer surface of the corrugated pipe body 1, the corrugated pipe The pipe body 1 is cylindrical, and the double-peak spiral reinforcement layer 2 includes a double-peak corrugated reinforcement layer 21 and a cladding layer 22 that is coated and connected to the outer peripheral wall of the double-peak corrugated reinforcement layer 21. The double-peak corrugated reinforcement layer 21 includes a spiral large crest layer 211, a spiral small crest layer 212 sleeved in the spiral large crest layer 211, and a spiral wave crest layer 211 connected to the spiral small crest layer 212 on both sides of the bottom. Spiral connecting wall 213, there is a gap between the inner surface of the spiral large crest layer 211 a...

specific Embodiment approach ( 2

[0046] A method for manufacturing a thermally wound double-peak reinforced spiral corrugated pipe, characterized in that the method includes the following steps:

[0047] ① Melt the material for making the linear strip-shaped reinforced profile 3, and extrude it with a linear large crest layer 31, a linear small crest layer 32 and a linear connecting wall 33 with an extruder and a die, and the outer peripheral wall is a profile The profile of the structure in which the crests 34 and profile troughs 35 are alternately arranged in sequence, forms a straight line strip-shaped reinforced profile 3 after cooling;

[0048] ② Melting the material for making the linear cladding layer, then extruding the linear cladding layer and thermally bonding it to the outer peripheral wall of the linear strip-shaped reinforced profile 3;

[0049] ③ Melt the material for making the bellows body 1, and mold it in a mold to form a long sheet-shaped blank, and then spirally wind the long sheet-shaped...

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Abstract

The invention relates to a thermal-state winding double-wave-peak reinforced spiral corrugated pipe and a manufacturing method of the thermal-state winding double-wave-peak reinforced spiral corrugated pipe. The thermal-state winding double-wave-peak reinforced spiral corrugated pipe comprises a corrugated pipe body and a double-wave-peak spiral reinforcement layer. The double-wave-peak spiral reinforcement layer comprises a double-wave-peak corrugation reinforcement layer and a covering layer. The double-wave-peak corrugation reinforcement layer comprises a spiral large wave peak layer, a spiral small wave peak layer and a spiral connecting wall. A gap is reserved between the inner surface of the spiral large wave peak layer and the outer surface of the spiral small wave peak layer, and the circumferential wall of the double-wave-peak corrugation reinforcement layer is of a corrugation structure which is characterized in that the wave peaks and the wave troughs are alternately arranged in sequence in the spiral extension direction of the circumferential wall. The covering layer is a flat solid wall layer which is connected to the peripheral wall of the double-wave-peak corrugationreinforcement layer in a covering mode. The inner surface of the portion, covering the periphery of the spiral connecting wall, of the covering layer is fixedly connected with the outer surface of the corrugated pipe body. The thermal-state winding double-wave-peak reinforced spiral corrugated pipe is high in bonding strength, is not prone to separation, and is long in service life. The manufacturing method avoids the phenomenon that an existing cold-state winding pipe is quite prone to separation, and is easy and convenient to operate and stable in technology.

Description

technical field [0001] The invention relates to the field of pipe materials, in particular to a hot winding double-peak reinforced spiral corrugated pipe and a manufacturing method thereof. Background technique [0002] The wave crest of the existing old-fashioned spiral corrugated pipe and its pipe body are secondary composites, and its wave crest is circular (such as figure 1 As shown), it is in point contact with the pipe body, the contact area is relatively small, and the bonding effect between the wave crest and the pipe body is limited. Poor external pressure performance and short service life. Contents of the invention [0003] The object of the present invention is to provide a thermally wound double-peak reinforced spiral corrugated pipe and its manufacturing method. The double-peak spiral reinforced layer of the corrugated pipe includes a double-peak corrugated reinforced layer and a cladding layer, and the cladding layer is a flat solid wall layer. , the bondi...

Claims

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Application Information

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IPC IPC(8): F16L9/12F16L57/02B29D23/18
CPCB29D23/18F16L9/12F16L57/02
Inventor 周成立周成纤
Owner 萍乡市大地新材料科技有限公司