Method for producing temperature-resisting, anti-seismic and antibacterial compound polyethylene water supply pipe

A technology for water supply pipes and production methods, which is applied in the direction of tubular objects, applications, household appliances, etc., can solve the problems of difficult pipe forming and processing, weak impact resistance, poor antibacterial performance, etc., and achieve safe and reliable use, strong impact resistance, Anti-aging effect

Inactive Publication Date: 2011-06-29
康泰塑胶科技集团(郑州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of the above situation, in order to overcome the defects of the prior art, the object of the present invention is to provide a production method of a temperature-resistant, shock-resistant and anti-bacterial composite polyethylene water supply pipe, which can effectively solve the current difficulties in pipe forming and processing, short life, impact resistance Weak, easily damaged, poor antibacterial properties

Method used

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  • Method for producing temperature-resisting, anti-seismic and antibacterial compound polyethylene water supply pipe
  • Method for producing temperature-resisting, anti-seismic and antibacterial compound polyethylene water supply pipe
  • Method for producing temperature-resisting, anti-seismic and antibacterial compound polyethylene water supply pipe

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Embodiment 1

[0013] When the present invention is actually implemented, the polyolefin PE outer layer and the polyolefin PERT inner layer are respectively extruded and heated by an extruder, and then extruded from the same extrusion die by the polyolefin PE outer layer and the polyolefin PERT inner layer. Two-layer co-extruded composite pipe with adjacent layers tightly bonded, in which the length of the barrel area of ​​the extruder for the outer layer of polyolefin PE and the inner layer of polyolefin PERT is divided into 4 sections, and the temperature of each section is: 1st The first section is 168°C, the second section is 173°C, the third section is 178°C, and the fourth section is 180°C. The length of the die head in the die area of ​​the extruder is divided into 7 sections, and the temperature of each section is: Section 1 188°C, 182°C for the 2nd stage, 180°C for the 3rd stage, 190°C for the 4th stage, 195°C for the 5th stage, 200°C for the 6th stage, 205°C for the 7th stage, extru...

Embodiment 2

[0015] In the present invention, the outer layer of polyolefin PE and the inner layer of polyolefin PERT are respectively extruded and heated by an extruder, and then extruded from the same extrusion die by two layers of the outer layer of polyolefin PE and the inner layer of polyolefin PERT. Composite pipes extruded and closely bonded adjacent layers, in which the length of the barrel area of ​​the extruder for the outer layer of polyolefin PE and the inner layer of polyolefin PERT is divided into 4 sections, and the temperature of each section is: the first section is 173 ℃, the second section is 178°C, the third section is 183°C, the fourth section is 185°C, the length of the die head in the die area of ​​the extruder is divided into 7 sections, and the temperature of each section is: the first section is 193°C , the second stage is 187°C, the third stage is 185°C, the fourth stage is 195°C, the fifth stage is 200°C, the sixth stage is 205°C, the seventh stage is 210°C, the ...

Embodiment 3

[0017] In the present invention, the outer layer of polyolefin PE and the inner layer of polyolefin PERT are respectively extruded and heated by an extruder, and then extruded from the same extrusion die by two layers of the outer layer of polyolefin PE and the inner layer of polyolefin PERT. Composite pipes extruded and closely bonded adjacent layers, in which the length of the barrel area of ​​the extruder for the outer layer of polyolefin PE and the inner layer of polyolefin PERT is divided into 4 sections, and the temperature of each section is: the first section is 178 ℃, the second section is 183°C, the third section is 188°C, the fourth section is 190°C, the length of the die head in the die area of ​​the extruder is divided into 7 sections, and the temperature of each section is: the first section is 198°C , the second stage is 192°C, the third stage is 190°C, the fourth stage is 200°C, the fifth stage is 205°C, the sixth stage is 210°C, the seventh stage is 215°C, the ...

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Abstract

The invention relates to a method for producing a temperature-resisting, anti-seismic and antibacterial compound polyethylene water supply pipe, which can be used for solving the problems of the prior art that the pipe shaping process is difficult, the service life is short, the anti-seismic property is poor, the pipe is easily damaged and the antibacterial property is inferior. The method comprises the following steps: respectively extruding and heating a polyolefin PE (polyethylene) outer layer and a polyolefin PERT (polyethylene raised temperature) inner layer, and then extruding a two-layer or multi-layer coextruded compound pipe from a same extruding port, wherein the compound pipe has tightly combined adjacent layers and at least contains the polyolefin PE outer layer and the polyolefin PERT inner layer; heating the polyolefin PE outer layer and the polyolefin PERT inner layer in sections in the cylinder area and a mold head area of an extruder; shaping the combined compound pipe in vacuum; placing the compound pipe in a water tank for cooling; printing the pipe; dragging the pipe; and cutting the pipe according to the fixed size. The compound polyethylene water supply pipe provided by the using the method has non toxic or side effect, is temperature-resisting and antibacterial, is strong in acclimation, has high cost performance, is simply processed, is conveniently, safely and reliably used, has strong strength and excellent toughness, is strong in anti-seismic property, is difficult to age, break and soak, and has low comprehensive cost.

Description

1. Technical field [0001] The invention relates to a pipe, in particular to a production method of a temperature-resistant, shock-resistant and antibacterial composite polyethylene water supply pipe. 2. Background technology [0002] Plastic pipe is one of the essential pipes for water supply and transportation. Its raw materials are mainly polyolefin resins (PE, PP, PERT, PB, etc.), polyvinyl chloride resin (PVC) and other polymer resins, but with the development of society With the development and advancement of science and technology, people's awareness of environmental protection has increased, and the requirements for drinking water pipelines have become higher and stricter. In the current use of drinking water pipelines, the problems faced are: 1. Large-diameter PERT water supply pipes are difficult to form and process; 2. Due to the activity cycle of nature itself and the unreasonable development and utilization of nature by humans, the pollution of the chemical envir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C47/06B29C47/92B29K23/00B29L23/00B29C48/92
Inventor 林云青叶日才张文霖李长辉强克刚
Owner 康泰塑胶科技集团(郑州)有限公司
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