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Processing method for supra-macromolecule polyethylene composite pipe

A technology of ultra-high polymer and composite steel pipes, which is applied in the field of pipe material manufacturing, can solve the problems of poor corrosion resistance, short service life, and low hardness of steel pipes, and achieve the effects of reducing production costs, increasing service life, and improving notch impact strength

Active Publication Date: 2014-02-19
YANGZHOU JUYE WEAR-RESISTANT COMPOSITE MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing steel pipes have high strength, good toughness, impact resistance, and good welding performance. They are commonly used pipes for conveying granular materials, grinding, and corrosive media. high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A processing method for ultra-high molecular polyethylene composite steel pipe, comprising the following steps:

[0013] (1) Mix the raw materials ultra-high molecular weight polyethylene resin, graphite, polyethylene wax, and antioxidant evenly, and the mass ratio of ultra-high molecular weight polyethylene resin, graphite, polyethylene wax, and antioxidant is 85-95:1-2 : 2.7-13.9:0.1-0.3, uniformly mixed raw materials are added to the barrel of the screw extruder, under the action of barrel temperature and screw rotation, compaction and mixing, the solid raw materials are transformed into a uniform melt with fluidity, The uniform melt moves to the front end of the barrel with the rotation of the screw. Under the action of the screw rotation, it passes through a die of a certain shape on the screw extruder to obtain a pipe with the same shape as the die. The pipe passes through a shaping device and a cooling device. The cooling adopts the water-oil cooling method to ma...

Embodiment 2

[0019] A processing method for ultra-high molecular polyethylene composite steel pipe, comprising the following steps:

[0020] (1) Mix the raw materials ultra-high molecular weight polyethylene resin, graphite, polyethylene wax, and antioxidant 1010 evenly. The mass ratio of ultra-high molecular weight polyethylene resin, graphite, polyethylene wax, and antioxidant is 85:1:13.9: 0.1, the uniformly mixed raw materials are added to the barrel of the screw extruder, under the action of the barrel temperature and screw rotation, compaction and mixing, the solid raw materials are transformed into a fluid uniform melt, and the uniform melt follows the rotation of the screw Move to the front end of the barrel, under the action of screw rotation and extrusion, pass through a die of a certain shape on the screw extruder to obtain a pipe that is consistent with the shape of the die. The pipe passes through a shaping device and a cooling device, and the cooling adopts water-oil cooling. ...

Embodiment 3

[0024] A processing method for ultra-high molecular polyethylene composite steel pipe, comprising the following steps:

[0025] (1) Mix the raw materials ultra-high molecular weight polyethylene resin, graphite, polyethylene wax, and antioxidant 1076 evenly. The mass ratio of ultra-high molecular weight polyethylene resin, graphite, polyethylene wax, and antioxidant is 90:2.3:6.5: 0.2, the uniformly mixed raw materials are added to the barrel of the screw extruder, under the action of barrel temperature and screw rotation, compaction and mixing, the solid raw materials are transformed into fluid uniform melts, and the uniform melts follow the rotation of the screw Move to the front end of the barrel, under the action of screw rotation and extrusion, pass through a die of a certain shape on the screw extruder to obtain a pipe that is consistent with the shape of the die. The pipe passes through a shaping device and a cooling device, and the cooling adopts water-oil cooling. Aft...

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PUM

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Abstract

The invention discloses a processing method for a supra-macromolecule polyethylene composite pipe. The processing method comprises the following steps of (1) uniformly mixing supra-macromolecule polyethylene resin, graphite, polyethylene wax and an antioxidant which serve as raw materials, adding the uniformly mixed raw materials into a material barrel of a screw extruder, and manufacturing a pipe with the same shape as that of a neck mold with a certain shape through the neck mold on the screw extruder under the rotary extrusion action of a screw, wherein the pipe passes through a sizing device and a cooling device and is cooled to be hardened and sized by a water-oil cooling mode; continuously and uniformly leading out a product during cooling after a product plastic piece is extruded from the neck mold, cutting the cooled and sized product through a cutting device, and inspecting the cut product, wherein the qualified product is a supra-macromolecule polyethylene pipe; (2) cutting and posttreating the supra-macromolecule polyethylene pipe, and putting the post-treated supra-macromolecule polyethylene pipe into a steel pipe to obtain the supra-macromolecule polyethylene composite pipe. According to the processing method, the technology is simple; the supra-macromolecule polyethylene composite pipe is easy to produce and manufacture; the manufactured pipe is high in abrasion resistance, self-lubrication property and intensity, stable in chemical property and high in aging resistance.

Description

technical field [0001] The invention relates to a method for manufacturing a pipe, in particular to a method for processing an ultrahigh molecular polyethylene composite steel pipe. Background technique [0002] Existing steel pipes have high strength, good toughness, impact resistance, and good welding performance. They are commonly used pipes for conveying granular materials, grinding, and corrosive media. high. Therefore, a new composite steel pipe is required. Contents of the invention [0003] The purpose of the present invention is to provide a processing method for ultra-high molecular polyethylene composite steel pipe. The process of the present invention is simple, easy to manufacture, and the prepared pipe has high wear resistance, self-lubricating property, high strength, stable chemical properties, and anti-aging Strong performance. [0004] The purpose of the present invention is achieved through the following technical solutions, a method for processing ul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C69/00B29C47/00B29C63/34C08L23/06C08K3/04C08K5/134
Inventor 乐少兵张军
Owner YANGZHOU JUYE WEAR-RESISTANT COMPOSITE MATERIAL CO LTD
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