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Tensile strength-improved plastic steel winding pipe and preparation method thereof

A plastic-steel winding pipe and a tensile strength technology, which is applied to the plastic-steel winding pipe with modified tensile strength and its preparation field, can solve the problems of insufficient strength of the plastic-steel winding pipe, pipe fracture, etc., so as to improve the tensile strength and flexibility, The effect of good processing performance and long service life

Inactive Publication Date: 2016-03-09
贵州大有管业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved in the present invention is to solve the above-mentioned deficiencies in the prior art, because the plastic-steel winding pipe has insufficient strength and is prone to pipe fracture.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A plastic-steel winding pipe with modified tensile strength, comprising the following raw material components by weight percentage: 78% of high-density polyethylene, 20% of linear low-density polyethylene, 1.5% of defoaming agent, and 0.5% of color masterbatch.

[0016] The preparation method of a plastic-steel wound pipe with modified tensile strength, the preparation steps are as follows:

[0017] 1) Mix according to the weight percentage of the raw materials, then fully stir for 12 minutes through a high-speed kneader, and then blend and granulate through a single-screw extruder;

[0018] 2) Extrude the granules prepared in step 1) through the pipe machine and pipe extrusion auxiliary machine, cool and shape them to obtain the finished pipe.

[0019] The temperature of the cylinder for extruding hot melt adhesive in step 2) is: 90°C-95°C in the first zone, 175°C-180°C in the second zone, 185°C-190°C in the third zone, 195°C-200°C in the fourth zone, The fifth zone i...

Embodiment 2

[0021] A plastic-steel winding pipe with modified tensile strength, comprising the following raw material components by weight percentage: 80% high-density polyethylene, 18.5% linear low-density polyethylene, 1% defoamer, and 0.5% color masterbatch.

[0022] The preparation method of a plastic-steel wound pipe with modified tensile strength, the preparation steps are as follows:

[0023] 1) Mix according to the weight percentage of the raw materials, then fully stir for 10 minutes through a high-speed kneader, and then blend and granulate through a single-screw extruder;

[0024] 2) Extrude the granules prepared in step 1) through the pipe machine and pipe extrusion auxiliary machine, cool and shape them to obtain the finished pipe.

[0025] The barrel temperature for extruding the hot melt adhesive in step 2) is: 95°C-105°C in the first zone, 178°C-182°C in the second zone, 190°C-193°C in the third zone, 198°C-202°C in the fourth zone, The fifth zone is 210℃~215℃, the sixth ...

Embodiment 3

[0027] A plastic-steel winding pipe with modified tensile strength comprises the following raw material components by weight percentage: 78.8% high-density polyethylene, 19.5% linear low-density polyethylene, 1.2% defoamer, and 0.5% color masterbatch.

[0028] The preparation method of a plastic-steel wound pipe with modified tensile strength, the preparation steps are as follows:

[0029] 1) Mix according to the weight percentage of the raw materials, then fully stir for 11 minutes through a high-speed kneader, and then blend and granulate through a single-screw extruder;

[0030] 2) Extrude the granules prepared in step 1) through the pipe machine and pipe extrusion auxiliary machine, cool and shape them to obtain the finished pipe.

[0031] The barrel temperature for extruding the hot melt adhesive in step 2) is: 100°C-110°C in the first zone, 182°C-185°C in the second zone, 190°C-195°C in the third zone, 198°C-205°C in the fourth zone, The fifth zone is 208℃~212℃, the six...

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PUM

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Abstract

The invention relates to a tensile strength-improved plastic steel winding pipe and a preparation method thereof. The tensile strength-improved plastic steel winding pipe comprises, by weight, 70-80% of high density polyethylene, 15-20% of linear low density polyethylene, 1-1.5% of an antifoaming agent and 0.5% of color master batches. The tensile strength-improved plastic steel winding pipe has effectively improved integral tensile strength and flexibility, can resist external force-caused distortion in pipe construction, loading and unloading, has good adaptability to geology and topography change after burying, guarantees pipe cost control and realizes economic and practical improvement. The pipe has excellent tensile strength, flexibility, good processing performances, a long service life, use safety and a wide application prospect.

Description

technical field [0001] The invention relates to the technical field of pipe preparation, in particular to a plastic-steel winding pipe with modified tensile strength and a preparation method thereof. Background technique [0002] The plastic-steel winding pipe is made of steel-plastic composite special-shaped strips through spiral winding and welding. The inner wall is smooth and flat. This kind of pipe has the advantages of corrosion resistance, light weight, easy installation, large flow rate, and long life. Pipes made of high quality (cement, cast iron, ceramics, etc.), are environmentally friendly green products. This product is mainly used as a buried drainage pipe, which integrates the rigidity of steel belt and the corrosion resistance, low friction resistance and wear resistance of polyethylene. It can be widely used in the construction of municipal engineering, sewage treatment plants and other key projects. [0003] In view of the market demand of plastic-steel w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08B29C47/92B29C48/92
CPCC08L23/06B29C48/92B29C2948/92704C08L2203/18C08L2205/03C08L2207/062C08L23/0815
Inventor 杨成良张传磊
Owner 贵州大有管业有限公司