CN113028156A - Steel strip reinforced spiral corrugated pipe and production process thereof - Google Patents
Steel strip reinforced spiral corrugated pipe and production process thereof Download PDFInfo
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- CN113028156A CN113028156A CN202110394290.2A CN202110394290A CN113028156A CN 113028156 A CN113028156 A CN 113028156A CN 202110394290 A CN202110394290 A CN 202110394290A CN 113028156 A CN113028156 A CN 113028156A
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- steel belt
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 55
- 239000010959 steel Substances 0.000 title claims abstract description 55
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- -1 polyethylene Polymers 0.000 claims abstract description 124
- 239000004698 Polyethylene Substances 0.000 claims abstract description 120
- 229920000573 polyethylene Polymers 0.000 claims abstract description 120
- 229920003023 plastic Polymers 0.000 claims abstract description 20
- 239000004033 plastic Substances 0.000 claims abstract description 20
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 17
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 17
- 239000012760 heat stabilizer Substances 0.000 claims abstract description 16
- 239000000843 powder Substances 0.000 claims abstract description 16
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000003063 flame retardant Substances 0.000 claims abstract description 11
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 9
- 239000003112 inhibitor Substances 0.000 claims abstract description 6
- 239000010410 layer Substances 0.000 claims description 112
- 239000007788 liquid Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 7
- 239000011247 coating layer Substances 0.000 claims description 6
- 238000005498 polishing Methods 0.000 claims description 6
- 239000003381 stabilizer Substances 0.000 claims description 6
- 239000000084 colloidal system Substances 0.000 claims description 5
- 229940079919 digestives enzyme preparation Drugs 0.000 claims description 5
- 239000003995 emulsifying agent Substances 0.000 claims description 5
- 239000003973 paint Substances 0.000 claims description 5
- 230000003449 preventive effect Effects 0.000 claims description 5
- IHBCFWWEZXPPLG-UHFFFAOYSA-N [Ca].[Zn] Chemical compound [Ca].[Zn] IHBCFWWEZXPPLG-UHFFFAOYSA-N 0.000 claims description 4
- MGFRKBRDZIMZGO-UHFFFAOYSA-N barium cadmium Chemical compound [Cd].[Ba] MGFRKBRDZIMZGO-UHFFFAOYSA-N 0.000 claims description 4
- 238000005422 blasting Methods 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- SLETZFVTVXVPLS-UHFFFAOYSA-N [Zn].[Cd].[Ba] Chemical compound [Zn].[Cd].[Ba] SLETZFVTVXVPLS-UHFFFAOYSA-N 0.000 claims description 3
- 238000007605 air drying Methods 0.000 claims description 3
- SHLNMHIRQGRGOL-UHFFFAOYSA-N barium zinc Chemical compound [Zn].[Ba] SHLNMHIRQGRGOL-UHFFFAOYSA-N 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 3
- 239000002932 luster Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000002667 nucleating agent Substances 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 229940065285 cadmium compound Drugs 0.000 claims description 2
- 239000013530 defoamer Substances 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 238000004804 winding Methods 0.000 abstract description 4
- 238000000227 grinding Methods 0.000 abstract description 2
- 239000012943 hotmelt Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 229940059260 amidate Drugs 0.000 description 2
- 239000006084 composite stabilizer Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- NPUKDXXFDDZOKR-LLVKDONJSA-N etomidate Chemical compound CCOC(=O)C1=CN=CN1[C@H](C)C1=CC=CC=C1 NPUKDXXFDDZOKR-LLVKDONJSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
-
- 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
- F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement
- F16L9/165—Rigid pipes wound from sheets or strips, with or without reinforcement of metal
-
- 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
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
Landscapes
- 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)
- Laminated Bodies (AREA)
Abstract
The invention relates to the technical field of spiral corrugated pipes and discloses a steel belt reinforced spiral corrugated pipe which comprises a polyethylene outer layer, a polyethylene inner layer and a steel belt layer, wherein the polyethylene outer layer and the polyethylene inner layer form a polyethylene wrapping layer, the polyethylene outer layer is integrally formed outside the polyethylene inner layer, the steel belt layer is embedded inside the polyethylene outer layer, the steel belt layer and the polyethylene outer layer are fixedly adhered, and the polyethylene wrapping layer comprises the following components: polyethylene, slip powder, a flame retardant, a plastic antioxidant, a heat stabilizer, a mildew inhibitor and a defoaming agent; preliminary fashioned polyethylene inlayer and the outer surperficial smoothness of polyethylene are leveled, handle the polyethylene inlayer through grinding device, and polyethylene skin upper surface left side is dull polish form, and polyethylene inlayer lower surface right side is dull polish form, and when the winding, the right side of polyethylene inlayer is rolled up to the outer upper surface left side of polyethylene, two dull polish face mutual contact hot melt adhesion.
Description
Technical Field
The invention relates to the technical field of spiral corrugated pipes, in particular to a steel strip reinforced spiral corrugated pipe and a production process thereof.
Background
The steel strip reinforced PE spiral corrugated pipe is a double-wall spiral corrugated pipe which takes high-density Polyethylene (PE) as a substrate, takes a steel strip with the surface coated with bonding resin to form a waveform as a main supporting structure, and is wound and compounded with a polyethylene material into a whole, wherein the compounding of each layer is carried out in a plastic molten state. The pipe is suitable for the environment with the medium temperature not more than 45 ℃ for a long time.
The traditional steel band reinforced corrugated pipe process has the defects that the steel band layer is made of metal, the inner layer and the outer layer of polyethylene are made of plastic, the adhesion strength of the steel band layer and the outer layer of polyethylene is improved in the market, the process is troublesome, the cost is greatly improved, in addition, the corrugated pipe is produced in a spiral winding mode, in the spiral winding process, the defects exist in the pasting of the two layers, the phenomenon of infirm pasting exists, and the improvement of the steel band reinforced spiral corrugated pipe and the production process thereof is to be waited.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a steel strip reinforced helical bellows and a production process thereof, and solves the problems in the background art.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a steel band reinforced spiral corrugated pipe comprises a polyethylene outer layer, a polyethylene inner layer and a steel band layer, wherein the polyethylene outer layer and the polyethylene inner layer form a polyethylene wrapping layer;
the polyethylene wrapping layers comprise the following components: polyethylene, slip powder, a flame retardant, a plastic antioxidant, a heat stabilizer, a mildew inhibitor and a defoaming agent.
Preferably, in the polyethylene wrapping layer, the slip powder consists of a plurality of natural edible colloids, enzyme preparations and emulsifiers.
Preferably, in the polyethylene wrapping layer, the heat stabilizer is one of a liquid barium-zinc compound, a liquid calcium-zinc stabilizer, a liquid barium-cadmium compound stabilizer or a liquid barium-cadmium-zinc compound nucleating agent.
Preferably, in the polyethylene coating layer, the plastic antioxidant is any two of alkylphenol, amide compound and aromatic amine compound.
Preferably, the polyethylene wrapping layer comprises the following components in parts by weight: 100-150 parts of polyethylene, 30-40 parts of slip powder, 20-50 parts of flame retardant, 10-30 parts of plastic antioxidant, 5-15 parts of heat stabilizer, 5-10 parts of mildew preventive and 10-25 parts of defoamer.
The invention also provides a production process of the steel strip reinforced helical bellows, which comprises the following preparation steps:
s1, weighing the polyethylene coating layer by using an electronic scale;
s2, fully mixing the component materials in a mixer;
s3, injecting the material into a forming machine to form a polyethylene inner layer and a polyethylene outer layer;
s4, polishing the right side of the lower surface of the inner polyethylene layer into a frosted shape, and similarly, polishing the left side of the upper surface of the outer polyethylene layer into a frosted shape for later use;
s5, rolling up the left side and the right side of the steel belt layer by a bending machine;
s6, shot blasting the surface of the steel belt layer to expose the metallic luster, spraying antirust paint on the surface of the steel belt layer, and air-drying for later use;
and S7, placing the steel belt layer on the left side of the polyethylene outer layer, and curling the polyethylene outer layer and the polyethylene inner layer into a ring shape after hot melting and pasting.
(III) advantageous effects
The invention provides a steel strip reinforced helical bellows and a production process thereof, and the steel strip reinforced helical bellows has the following beneficial effects:
(1) according to the invention, the surfaces of the preliminarily formed polyethylene inner layer and the polyethylene outer layer are smooth and flat, the polyethylene inner layer and the polyethylene outer layer are treated by the grinding device, the left side of the upper surface of the polyethylene outer layer is frosted, the right side of the lower surface of the polyethylene inner layer is frosted, during winding, the right side of the polyethylene inner layer is rolled to the left side of the upper surface of the polyethylene outer layer, the two frosted surfaces are contacted with each other for hot melting and adhesion, the frosted surfaces are firmly adhered, and the friction force is large.
(2) According to the invention, the two sides of the steel belt layer are rolled up upwards together and are provided with hooks, when the steel belt layer is wrapped on the polyethylene outer layer, one part of the polyethylene outer layer is hooked in the hooks formed by rolling up the steel belt layer, the steel belt layer and the polyethylene outer layer are not easy to separate, the process is simple, and the effect is obvious.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a partial cross-sectional structure of the present invention;
FIG. 3 is a schematic structural view of the steel strip layer of the present invention before being processed.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1-3, the present invention provides a technical solution: a steel band reinforced spiral corrugated pipe comprises a polyethylene outer layer, a polyethylene inner layer and a steel band layer, wherein the polyethylene outer layer and the polyethylene inner layer form a polyethylene wrapping layer;
the polyethylene wrapping layers comprise the following components: polyethylene, slip powder, a flame retardant, a plastic antioxidant, a heat stabilizer, a mildew inhibitor and a defoaming agent.
Furthermore, in the polyethylene wrapping layer, the slip powder consists of various natural edible colloids, enzyme preparations and emulsifiers.
Furthermore, in the polyethylene wrapping layer, the heat stabilizer is a liquid barium-zinc compound and a liquid calcium-zinc stabilizer which are combined for use.
Furthermore, in the polyethylene wrapping layer, the plastic antioxidant is alkylphenol and amidate.
Further, the polyethylene wrapping layer comprises the following components in parts by weight: 100 parts of polyethylene, 30 parts of slip powder, 20 parts of flame retardant, 10 parts of plastic antioxidant, 5 parts of heat stabilizer, 5 parts of mildew preventive and 10 parts of defoaming agent.
Example 2
As shown in fig. 1-3, the present invention provides a technical solution: a steel band reinforced spiral corrugated pipe comprises a polyethylene outer layer, a polyethylene inner layer and a steel band layer, wherein the polyethylene outer layer and the polyethylene inner layer form a polyethylene wrapping layer;
the polyethylene wrapping layers comprise the following components: polyethylene, slip powder, a flame retardant, a plastic antioxidant, a heat stabilizer, a mildew inhibitor and a defoaming agent.
Furthermore, in the polyethylene wrapping layer, the slip powder consists of various natural edible colloids, enzyme preparations and emulsifiers.
Furthermore, in the polyethylene wrapping layer, the heat stabilizer is a liquid barium-cadmium composite stabilizer and a liquid barium-cadmium-zinc composite nucleating agent.
Furthermore, in the polyethylene coating layer, the plastic antioxidant is an amidate or aromatic amine compound.
Further, the polyethylene wrapping layer comprises the following components in parts by weight: 150 parts of polyethylene, 40 parts of slip powder, 50 parts of flame retardant, 30 parts of plastic antioxidant, 15 parts of heat stabilizer, 10 parts of mildew preventive and 25 parts of defoaming agent.
Example 3
As shown in fig. 1-3, the present invention provides a technical solution: a steel band reinforced spiral corrugated pipe comprises a polyethylene outer layer, a polyethylene inner layer and a steel band layer, wherein the polyethylene outer layer and the polyethylene inner layer form a polyethylene wrapping layer;
the polyethylene wrapping layers comprise the following components: polyethylene, slip powder, a flame retardant, a plastic antioxidant, a heat stabilizer, a mildew inhibitor and a defoaming agent.
Furthermore, in the polyethylene wrapping layer, the slip powder consists of various natural edible colloids, enzyme preparations and emulsifiers.
Furthermore, in the polyethylene wrapping layer, the heat stabilizer is a liquid calcium zinc stabilizer or a liquid barium cadmium composite stabilizer.
Furthermore, in the polyethylene wrapping layer, the plastic antioxidant is alkylphenol and aromatic amine compounds.
Further, the polyethylene wrapping layer comprises the following components in parts by weight: 125 parts of polyethylene, 35 parts of slip powder, 35 parts of flame retardant, 20 parts of plastic antioxidant, 10 parts of heat stabilizer, 7.5 parts of mildew preventive and 17.5 parts of defoaming agent.
The invention also provides a production process of the steel strip reinforced helical bellows, which comprises the following preparation steps:
s1, weighing the polyethylene coating layer by using an electronic scale;
s2, fully mixing the component materials in a mixer;
s3, injecting the material into a forming machine to form a polyethylene inner layer and a polyethylene outer layer;
s4, polishing the right side of the lower surface of the inner polyethylene layer into a frosted shape, and similarly, polishing the left side of the upper surface of the outer polyethylene layer into a frosted shape for later use;
s5, rolling up the left side and the right side of the steel belt layer by a bending machine;
s6, shot blasting the surface of the steel belt layer to expose the metallic luster, spraying antirust paint on the surface of the steel belt layer, and air-drying for later use;
and S7, placing the steel belt layer on the left side of the polyethylene outer layer, and curling the polyethylene outer layer and the polyethylene inner layer into a ring shape after hot melting and pasting.
The plastic antioxidant can delay the decomposition of plastic due to oxidation, prolong the service life of the corrugated pipe, and the shot blasting of the steel belt layer aims to ensure that the steel surface is not smooth and presents a certain concave-convex feeling, so that the paint surface can be better attached to the steel surface by spraying the antirust paint subsequently, and the contact between air and a steel belt is reduced to the maximum extent.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A steel band reinforcing helical bellows which characterized in that: the polyethylene outer layer and the polyethylene inner layer form a polyethylene wrapping layer, the polyethylene outer layer is integrally formed outside the polyethylene inner layer, the steel belt layer is embedded inside the polyethylene outer layer, and the steel belt layer is fixedly adhered to the polyethylene outer layer;
the polyethylene wrapping layers comprise the following components: polyethylene, slip powder, a flame retardant, a plastic antioxidant, a heat stabilizer, a mildew inhibitor and a defoaming agent.
2. A steel strip reinforced helical bellows as claimed in claim 1, wherein: in the polyethylene wrapping layer, the slip powder consists of various natural edible colloids, enzyme preparations and emulsifiers.
3. A steel strip reinforced helical bellows as claimed in claim 1, wherein: in the polyethylene wrapping layer, the heat stabilizer is one of a liquid barium-zinc compound, a liquid calcium-zinc stabilizer, a liquid barium-cadmium compound stabilizer or a liquid barium-cadmium-zinc compound nucleating agent.
4. A steel strip reinforced helical bellows as claimed in claim 1, wherein: in the polyethylene coating layer, the plastic antioxidant is any two of alkylphenol, amide compounds and aromatic amine compounds.
5. A steel strip reinforced helical bellows as claimed in claim 1, wherein: the polyethylene wrapping layer comprises the following components in parts by weight: 100-150 parts of polyethylene, 30-40 parts of slip powder, 20-50 parts of flame retardant, 10-30 parts of plastic antioxidant, 5-15 parts of heat stabilizer, 5-10 parts of mildew preventive and 10-25 parts of defoamer.
6. A production process of a steel strip reinforced spiral corrugated pipe is characterized by comprising the following steps: the preparation method comprises the following preparation steps:
s1, weighing the polyethylene coating layer by using an electronic scale;
s2, fully mixing the component materials in a mixer;
s3, injecting the material into a forming machine to form a polyethylene inner layer and a polyethylene outer layer;
s4, polishing the right side of the lower surface of the inner polyethylene layer into a frosted shape, and similarly, polishing the left side of the upper surface of the outer polyethylene layer into a frosted shape for later use;
s5, rolling up the left side and the right side of the steel belt layer by a bending machine;
s6, shot blasting the surface of the steel belt layer to expose the metallic luster, spraying antirust paint on the surface of the steel belt layer, and air-drying for later use;
and S7, placing the steel belt layer on the left side of the polyethylene outer layer, and curling the polyethylene outer layer and the polyethylene inner layer into a ring shape after hot melting and pasting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110394290.2A CN113028156B (en) | 2021-04-13 | 2021-04-13 | Steel band reinforced spiral corrugated pipe and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110394290.2A CN113028156B (en) | 2021-04-13 | 2021-04-13 | Steel band reinforced spiral corrugated pipe and production process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113028156A true CN113028156A (en) | 2021-06-25 |
| CN113028156B CN113028156B (en) | 2024-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110394290.2A Active CN113028156B (en) | 2021-04-13 | 2021-04-13 | Steel band reinforced spiral corrugated pipe and production process thereof |
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| Country | Link |
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| CN (1) | CN113028156B (en) |
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|---|---|---|---|---|
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| CN104633310A (en) * | 2014-12-30 | 2015-05-20 | 合肥迈利网络科技有限公司 | Helical bellows |
| CN205173742U (en) * | 2015-12-04 | 2016-04-20 | 东莞市南风塑料管材有限公司 | HDPE cavity wall plastic steel winding pipe |
| CN108194719A (en) * | 2018-01-08 | 2018-06-22 | 扬州市勘测设计研究院有限公司 | A kind of connection structure of winding pipe and attaching method thereof |
| CN110696456A (en) * | 2019-09-23 | 2020-01-17 | 镇江荣诚管业有限公司 | Polyethylene pipe for underground coal mine and preparation process thereof |
| CN210318871U (en) * | 2019-04-18 | 2020-04-14 | 湖北省峰华科技有限公司 | High-strength steel strip reinforced corrugated pipe |
| CN111810733A (en) * | 2020-07-29 | 2020-10-23 | 上海瑞皇管业科技股份有限公司 | Reinforced polyethylene winding composite pipe |
-
2021
- 2021-04-13 CN CN202110394290.2A patent/CN113028156B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052526A (en) * | 2009-11-03 | 2011-05-11 | 甘国工 | Double-wall corrugated pipe formed through winding and provided with metal framework reinforcement and manufacturing method thereof |
| CN203147081U (en) * | 2013-01-29 | 2013-08-21 | 山东红日管业科技有限公司 | Steel belt reinforced polyethylene helically-corrugated pipe |
| CN203831877U (en) * | 2014-05-08 | 2014-09-17 | 四川煌盛管业有限公司 | Plastic laminated steel belt |
| CN204226886U (en) * | 2014-09-29 | 2015-03-25 | 江西金阳管业有限公司 | A kind of steel band reinforced spiral ripple pipe |
| CN104500874A (en) * | 2014-12-19 | 2015-04-08 | 黄文鹏 | Steel belt and reinforced polyvinyl chloride helical bellow and production method thereof |
| CN104633310A (en) * | 2014-12-30 | 2015-05-20 | 合肥迈利网络科技有限公司 | Helical bellows |
| CN205173742U (en) * | 2015-12-04 | 2016-04-20 | 东莞市南风塑料管材有限公司 | HDPE cavity wall plastic steel winding pipe |
| CN108194719A (en) * | 2018-01-08 | 2018-06-22 | 扬州市勘测设计研究院有限公司 | A kind of connection structure of winding pipe and attaching method thereof |
| CN210318871U (en) * | 2019-04-18 | 2020-04-14 | 湖北省峰华科技有限公司 | High-strength steel strip reinforced corrugated pipe |
| CN110696456A (en) * | 2019-09-23 | 2020-01-17 | 镇江荣诚管业有限公司 | Polyethylene pipe for underground coal mine and preparation process thereof |
| CN111810733A (en) * | 2020-07-29 | 2020-10-23 | 上海瑞皇管业科技股份有限公司 | Reinforced polyethylene winding composite pipe |
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| Publication number | Publication date |
|---|---|
| CN113028156B (en) | 2024-04-19 |
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