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Polyethylene (PE) flexible pipe

A hose and pipe wall technology, which is applied to the locally thickened PE hose and its manufacturing field, can solve the problems of affecting the irrigation effect, the branch pipe joint falling off, and the pressure bearing capacity of the PE hose decrease, so as to achieve less labor intensity, Effect of improving pressure bearing capacity, reducing rice weight and cost

Inactive Publication Date: 2016-02-24
新疆通利塑业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pressure bearing capacity of the PE hose produced in this way decreases during production, especially at the place where the branch pipe joint is installed. water irrigation effect

Method used

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  • Polyethylene (PE) flexible pipe
  • Polyethylene (PE) flexible pipe
  • Polyethylene (PE) flexible pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1: A kind of PE hose is prepared by using linear low-density polyethylene, low-density polyethylene, high-density polyethylene, black masterbatch and antioxidant, and is characterized in that there is a local thickening zone on the pipe wall, and the local thickening The thickness of the thick zone is 1.0-2.5mm, and the inner wall arc length of the local thickening zone is 25-60mm. The thickness of the local thickening zone and the inner wall arc length of the local thickening zone increase with the increase of the pipe diameter. The specific relationship is as follows As shown in the table:

[0037]

[0038] There are two marking areas on the outer wall of the local thickening area, the color of the marking area is blue, and the distance between the two lines is 40mm.

Embodiment 2

[0039] Embodiment 2: a kind of preparation method of PE hose, comprising extruder, co-extrusion machine, vacuum setting machine, haul-off machine, it is characterized in that extruding die is installed on extruder die body; Described extruding die consists of Composed of mandrel, die, and co-extrusion sleeve, the die is installed outside the mandrel, and the co-extrusion sleeve is installed on the die to connect with the co-extrusion machine. It is characterized in that an arc-shaped groove is designed on the outer wall of the mandrel, and the depth of the groove is 0.5mm. , the arc length of the groove is 25mm, and the groove mouth is installed upward; the die is designed with a co-extrusion material inlet; the inner side of the co-extrusion sleeve is designed with a co-extrusion flow channel; the specific production is carried out as follows:

[0040] The first step is to dry the material, put the main material linear low-density polyethylene, low-density polyethylene, and hi...

Embodiment 3

[0047] Embodiment 3: a kind of preparation method of PE hose, comprising extruder, co-extrusion machine, vacuum setting machine, haul-off machine, it is characterized in that extrusion mold is installed on extruder mold body; Said extrusion mold consists of Composed of mandrel, die and co-extrusion sleeve, the die is installed outside the mandrel, and the co-extrusion sleeve is installed on the die to connect with the co-extrusion machine. It is characterized in that an arc-shaped groove is designed on the outer wall of the mandrel, and the depth of the groove is 0.3mm. , the arc length of the groove is 40mm, and the groove opening is installed upwards; the die is designed with a co-extrusion material inlet; the inner side of the co-extrusion sleeve is designed with a co-extrusion flow channel; the specific production is carried out as follows:

[0048] The first step is to dry the material, put the main material linear low-density polyethylene, low-density polyethylene and hig...

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Abstract

The invention relates to the technical field of polyethylene (PE) flexible pipe manufacturing, in particular to a PE flexible pipe. The PE flexible pipe is characterized in that the wall of the pipe is provided with a partial thickened area, the thickness of the partial thickened area is 1.0-2.5 mm, and the arc length of the outer wall of the partial thickened area is 25-60 mm. Due to the fact that the wall thickness of the whole PE flexible pipe is small and the PE flexible pipe is provided with the partial thickened area, the production cost and the weight per meter of the PE flexible pipe are effectively reduced, the problem a branch pipe connector falls off due to the wall thickness is successfully solved, and the applicability of the PE flexible pipe is improved; accordingly, the PE flexible pipe has profound practical significance on promoting agricultural water-saving irrigation technique research and industrialization development of products, particularly, restraining ecological environment deterioration in northwest arid regions, using water resources effectively, and achieving the sustainable development of economy and society in China.

Description

technical field [0001] The invention relates to the technical field of polyethylene (PE) hose manufacture, in particular to a partially thickened PE hose and a manufacturing method thereof. Background technique [0002] According to forecasts, the world's total population will increase to 9 billion people by 2050, and human demand for food will double. The world's fresh water resources are increasingly scarce, and human demand for food is also increasing. Fresh water resources have become a threat to agricultural development and the security of the world's food supply. To solve the problem of limited arable land, shortage of fresh water resources and rising world food demand, the development of water-saving irrigation becomes the key. At present, the main measures of water-saving irrigation in various countries in the world include channel anti-seepage, low-pressure pipe irrigation, sprinkler irrigation, micro-irrigation, etc. Among them, sprinkler irrigation and drip irri...

Claims

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Application Information

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IPC IPC(8): F16L11/04F16L11/14
CPCF16L11/04F16L11/14
Inventor 冯光明郑重孙雪迁周勇刘斌
Owner 新疆通利塑业有限公司
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