CN112178302A - HDPE steel band reinforcing helical bellows - Google Patents
HDPE steel band reinforcing helical bellows Download PDFInfo
- Publication number
- CN112178302A CN112178302A CN201910602228.0A CN201910602228A CN112178302A CN 112178302 A CN112178302 A CN 112178302A CN 201910602228 A CN201910602228 A CN 201910602228A CN 112178302 A CN112178302 A CN 112178302A
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- China
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- weight
- parts
- steel band
- inner layer
- hdpe
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/001—Pipes; Pipe joints
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/02—Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention relates to the technical field of plastic pipes and discloses a HDPE steel belt reinforced spiral corrugated pipe. The pipe body of the HDPE steel band reinforced spiral corrugated pipe comprises an inner layer, an annular wavy steel band reinforcement body and a polyethylene outer layer, wherein the annular wavy steel band reinforcement body is wound on the outer surface of the inner layer, the polyethylene outer layer covers the steel band reinforcement body and the outer surface of the inner layer, the inner layer is made of a resin composition, and the resin composition contains 80-100 parts by weight of high-density polyethylene, 20-40 parts by weight of polypropylene, 10-15 parts by weight of talcum powder, 10-20 parts by weight of ethylene propylene diene monomer, 5-10 parts by weight of a coupling agent and 1-3 parts by weight of master batch. The HDPE steel strip reinforced spiral corrugated pipe has better rigidity and ring rigidity.
Description
Technical Field
The invention relates to the technical field of plastic pipes, in particular to a HDPE steel belt reinforced spiral corrugated pipe.
Background
With the continuous and stable high-speed growth of national economy in China, a good macroscopic environment and a wide space are provided for the construction of urban infrastructure. With the increasing attention of our country to environmental protection, governments at all levels from the center to the local have come out a series of policies and regulations for saving water, treating pollution and protecting the environment. Water supply, water conservation, drainage and sewage treatment become the key points of urban municipal construction in the future, which provides market development space for the popularization and application of large-diameter plastic pipes. The structural wall pipe can save raw materials and reduce cost, so the structural wall pipe becomes a mainstream product of a large-caliber drainage and sewage pipeline. HDPE double-wall corrugated pipe used for drainage and sewage pipes in China has the advantages of good rigidity, low price and the like; but also has the defect of poor low-temperature impact performance, and is very easy to damage particularly in the construction in winter in the north. The PE double-wall corrugated pipe has obvious advantages in low-temperature toughness, but due to the characteristics of the PE material, the rigidity of the PE double-wall corrugated pipe is poorer than that of a cement pipe, the ring rigidity and the creep resistance of the PE double-wall corrugated pipe are poorer than those of an HDPE corrugated pipe, and the PE double-wall corrugated pipe is easy to deform by gravity in the long-term use process, so that the service life of the PE double-wall corrugated pipe is.
Disclosure of Invention
The present invention has been made to overcome the above problems occurring in the prior art, and an object of the present invention is to provide a HDPE steel strip reinforced helical bellows, which has rigidity and ring stiffness.
In order to achieve the purpose, the invention provides an HDPE steel strip reinforced helical bellows, wherein a pipe body of the HDPE steel strip reinforced helical bellows comprises an inner layer, an annular wavy steel strip reinforcement wound on the outer surface of the inner layer and a polyethylene outer layer covering the outer surfaces of the steel strip reinforcement and the inner layer, wherein the inner layer is made of a resin composition, and the resin composition contains 80-100 parts by weight of high-density polyethylene, 20-40 parts by weight of polypropylene, 10-15 parts by weight of talcum powder, 10-20 parts by weight of ethylene propylene diene monomer, 5-10 parts by weight of coupling agent and 1-3 parts by weight of color master batch.
Preferably, the resin composition contains 90-95 parts by weight of high-density polyethylene, 10-15 parts by weight of polypropylene, 10-12 parts by weight of talcum powder, 15-20 parts by weight of ethylene propylene diene monomer, 5-8 parts by weight of coupling agent and 1-3 parts by weight of color master batch.
Further preferably, the resin composition contains 92 parts by weight of high-density polyethylene, 11 parts by weight of polypropylene, 10 parts by weight of talcum powder, 20 parts by weight of ethylene propylene diene monomer, 8 parts by weight of coupling agent and 1 part by weight of color master batch.
Preferably, the coupling agent is a titanate coupling agent.
Through the technical scheme, the HDPE steel strip reinforced spiral corrugated pipe has better rigidity and ring rigidity.
Detailed Description
The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
The endpoints of the ranges and any values disclosed herein are not limited to the precise range or value, and such ranges or values should be understood to encompass values close to those ranges or values. For ranges of values, between the endpoints of each of the ranges and the individual points, and between the individual points may be combined with each other to give one or more new ranges of values, and these ranges of values should be considered as specifically disclosed herein.
The HDPE steel band reinforced helical bellows comprises an inner layer, an annular wavy steel band reinforcement wound on the outer surface of the inner layer and a polyethylene outer layer covering the outer surfaces of the steel band reinforcement and the inner layer, wherein the inner layer is made of a resin composition, and the resin composition contains 80-100 parts by weight of high-density polyethylene, 20-40 parts by weight of polypropylene, 10-15 parts by weight of talcum powder, 10-20 parts by weight of ethylene propylene diene monomer, 5-10 parts by weight of a coupling agent and 1-3 parts by weight of master batch.
Preferably, the resin composition contains 90-95 parts by weight of high-density polyethylene, 10-15 parts by weight of polypropylene, 10-12 parts by weight of talcum powder, 15-20 parts by weight of ethylene propylene diene monomer, 5-8 parts by weight of coupling agent and 1-3 parts by weight of color master batch.
In the most preferred embodiment, the resin composition contains 92 parts by weight of high density polyethylene, 11 parts by weight of polypropylene, 10 parts by weight of talc, 20 parts by weight of ethylene propylene diene monomer, 8 parts by weight of coupling agent and 1 part by weight of color master batch.
Preferably, the coupling agent is a titanate coupling agent.
In the invention, the materials and arrangement modes of the steel strip reinforcement and the polyethylene outer layer can be selected conventionally in the field, and are not described again.
The preparation process of the HDPE steel strip reinforced helical bellows provided by the invention can comprise the following steps:
(1) mixing the raw material formulas according to a proportion, and then adding the mixture into a drying mixer to remove moisture;
(2) the uniformly mixed materials are respectively sent into an extruder, the materials are plasticized into a molten state under the action of heating and pressurizing, and corresponding tube blanks are extruded by machine head dies and sizing sleeves with different specifications;
(3) cooling and shaping, and then cutting the pipe into fixed length through a length counting device and a cutting device to obtain an inner pipe;
(4) and winding an annular wavy steel strip reinforcement body on the outer surface of the inner pipe, and then coating a polyethylene film layer to obtain the HDPE steel strip reinforced spiral corrugated pipe product.
The present invention will be described in detail below by way of examples, but the scope of the present invention is not limited thereto.
Example 1
This example is used to illustrate the HDPE steel strip reinforced helical bellows and the preparation method thereof.
(1) Mixing the raw material formulas according to a proportion, adding the mixture into a drying mixer, and removing moisture, wherein the formula comprises the following components: 92 parts by weight of high-density polyethylene, 11 parts by weight of polypropylene, 10 parts by weight of talcum powder, 20 parts by weight of ethylene propylene diene monomer, 8 parts by weight of titanate coupling agent and 1 part by weight of color master batch;
(2) the uniformly mixed materials are respectively sent into an extruder, the materials are plasticized into a molten state under the action of heating and pressurizing, and corresponding tube blanks are extruded by machine head dies and sizing sleeves with different specifications;
(3) cooling and shaping, and then cutting the pipe into fixed length through a length counting device and a cutting device to obtain an inner pipe;
(4) and winding an annular wavy steel strip reinforcement body on the outer surface of the inner pipe, and then coating a polyethylene film layer to obtain the HDPE steel strip reinforced spiral corrugated pipe product.
Comparative example 1
An HDPE steel tape-reinforced helical bellows was prepared according to the method of example 1, except that no ethylene propylene diene monomer was added in step (1).
The HDPE steel strip reinforced helical bellows products prepared in example 1 and comparative example 1 were tested for stiffness and ring stiffness according to GB/T19472.1-2004. The result shows that the HDPE steel strip reinforced spiral corrugated pipe product has better rigidity and ring rigidity.
The preferred embodiments of the present invention have been described above in detail, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, many simple modifications can be made to the technical solution of the invention, including combinations of various technical features in any other suitable way, and these simple modifications and combinations should also be regarded as the disclosure of the invention, and all fall within the scope of the invention.
Claims (4)
1. The HDPE steel band reinforced helical bellows is characterized in that a pipe body of the HDPE steel band reinforced helical bellows comprises an inner layer, an annular wavy steel band reinforcement body and a polyethylene outer layer, wherein the annular wavy steel band reinforcement body is wound on the outer surface of the inner layer, the polyethylene outer layer covers the outer surface of the steel band reinforcement body and the outer surface of the inner layer, the inner layer is made of a resin composition, and the resin composition contains 80-100 parts by weight of high-density polyethylene, 20-40 parts by weight of polypropylene, 10-15 parts by weight of talcum powder, 10-20 parts by weight of ethylene propylene diene monomer, 5-10 parts by weight of coupling agent and 1-3 parts by weight of color master batch.
2. The HDPE steel strip reinforced helical bellows of claim 1, wherein the resin composition comprises 90-95 parts by weight of high density polyethylene, 10-15 parts by weight of polypropylene, 10-12 parts by weight of talc powder, 15-20 parts by weight of ethylene propylene diene monomer, 5-8 parts by weight of coupling agent and 1-3 parts by weight of color master batch.
3. The HDPE steel strip reinforced helical bellows of claim 2, wherein the resin composition comprises 92 parts by weight of high density polyethylene, 11 parts by weight of polypropylene, 10 parts by weight of talc, 20 parts by weight of ethylene propylene diene monomer, 8 parts by weight of coupling agent and 1 part by weight of color masterbatch.
4. The HDPE steel strip reinforced helical bellows of any of claims 1-3, wherein the coupling agent is a titanate coupling agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910602228.0A CN112178302A (en) | 2019-07-05 | 2019-07-05 | HDPE steel band reinforcing helical bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910602228.0A CN112178302A (en) | 2019-07-05 | 2019-07-05 | HDPE steel band reinforcing helical bellows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112178302A true CN112178302A (en) | 2021-01-05 |
Family
ID=73915723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910602228.0A Pending CN112178302A (en) | 2019-07-05 | 2019-07-05 | HDPE steel band reinforcing helical bellows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112178302A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115521531A (en) * | 2021-06-24 | 2022-12-27 | 江西蕴德新材料有限公司 | Modified corrugated pipe, corrugated pipe production method and corrugated pipe structure |
-
2019
- 2019-07-05 CN CN201910602228.0A patent/CN112178302A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115521531A (en) * | 2021-06-24 | 2022-12-27 | 江西蕴德新材料有限公司 | Modified corrugated pipe, corrugated pipe production method and corrugated pipe structure |
| CN115521531B (en) * | 2021-06-24 | 2024-05-24 | 江西蕴德新材料有限公司 | Modified corrugated pipe, corrugated pipe production method and corrugated pipe structure |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20210105 |