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A kind of preparation method of PE hose

A technology of hoses and extruders, which is applied in the direction of hoses, pipes, mechanical equipment, etc., can solve the problems of affecting irrigation effects, branch pipe joints falling off, and the reduction of pressure bearing capacity of PE hoses, so as to achieve less labor intensity and improve Pressure bearing capacity, effect of reducing meter weight and cost

Active Publication Date: 2017-08-29
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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  • A kind of preparation method of PE hose
  • A kind of preparation method of PE hose
  • A kind of preparation method of PE hose

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Example 1: A PE hose made of linear low-density polyethylene, low-density polyethylene, high-density polyethylene, black masterbatch and antioxidant. It is characterized in that there are local thickening areas on the pipe wall, which are locally increased. The thickness of the thick zone is 1.0-2.5mm, and the arc length of the inner wall 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 pipe diameter. The specific relationship is as follows The table shows:

[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] Example 2: A method for preparing a PE hose, including an extruder, a co-extruder, a vacuum setting machine, and a tractor, characterized in that an extrusion die is installed on the extruder mold body, and the extrusion die consists of It consists of a core mold, a die, and a co-extrusion sleeve. The die is installed outside the core mold, and the co-extrusion sleeve is installed on the die and connected to the co-extrusion machine. The feature is that the outer wall of the core mold is designed with an arc groove and the groove depth is 0.5mm. , The groove arc length is 25mm, the groove mouth is installed upwards, the die is designed with a co-extrusion material inlet, and the co-extrusion sleeve is designed with a co-extrusion runner. The specific production is carried out as follows:

[0040] Step 1: Drying: Put the main materials of linear low-density polyethylene, low-density polyethylene, and high-density polyethylene into the dryer, blow in hot air at 75°C, and dry ...

Embodiment 3

[0047] Example 3: A method for preparing a PE hose, including an extruder, a co-extruder, a vacuum setting machine, and a tractor, characterized in that an extrusion die is installed on the extruder mold body, and the extrusion die consists of It consists of a core mold, a die, and a co-extrusion sleeve. The die is installed outside the core mold, and the co-extrusion sleeve is installed on the die and connected to the co-extrusion machine. The feature is that the outer wall of the core mold is designed with an arc groove, and the groove depth is 0.3mm , The groove arc length is 40mm, the groove mouth is installed upwards, a co-extrusion inlet is designed on the die, and a co-extrusion runner is designed on the inside of the co-extrusion sleeve. The specific production is carried out as follows:

[0048] Step 1: Drying: Put the main materials of linear low-density polyethylene, low-density polyethylene and high-density polyethylene into the dryer, blow in hot air at 75°C, and dry ...

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Abstract

The invention relates to the technical field of polyethylene (PE) flexible pipe manufacturing, in particular to a preparation method for a PE flexible pipe. According to the preparation method, a plastic extruding machine, a co-extruder, a vacuum setting machine and a dragger are included, and the preparation method is characterized in that an extruding mold is installed on a plastic extruding machine mold body, and the extruding mold is composed of a mandrel, a port mold and a co-extrusion sleeve; the port mold is externally installed on the mandrel, the co-extrusion sleeve is installed on the port mold and connected with the co-extruder. The extruding mold is characterized in that an arc-shaped groove is designed in the outer wall of the mandrel, the depth of the groove is 0.5-1.0 mm, the arc length of the groove is 25-60 mm, and an opening of the groove is formed upwards; a material co-extruding inlet is designed in the port mold, and a co-extrusion runner is designed in the inner side of the co-extrusion sleeve. The particular production of the PE flexible pipe comprises the steps of material drying, material distributing, material extruding, pipe pulling, forming and the like. By means of the partial thickening PE flexible pipe produced through the preparation method, the problem that falling off of a branch pipe connector caused by reduction of the wall thickness is successfully solved, and the adaptability of the PE flexible pipe is improved; accordingly, the preparation method for the PE flexible pipe has profound significance on promoting agricultural water-saving irrigation technique research and industrialization exploitation of products.

Description

Technical field [0001] The invention relates to the technical field of manufacturing polyethylene (PE) hoses, in particular to a locally 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 freshwater resources are becoming increasingly scarce, and human demand for food is also rising. Freshwater resources have become a threat to agricultural development and world food supply. To solve the problem between 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 canal seepage prevention, low-pressure pipe irrigation, sprinkler irrigation, and micro-irrigation. Among them, sprinkler irrigation and drip irrigation, as the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C47/00F16L11/06B29K23/00
CPCB29C48/09B29K2023/06F16L11/06
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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