CN114989692A - Composite polymer carbon steel pipe and production method thereof - Google Patents
Composite polymer carbon steel pipe and production method thereof Download PDFInfo
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- CN114989692A CN114989692A CN202210768304.7A CN202210768304A CN114989692A CN 114989692 A CN114989692 A CN 114989692A CN 202210768304 A CN202210768304 A CN 202210768304A CN 114989692 A CN114989692 A CN 114989692A
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- steel pipe
- carbon steel
- primer
- polymer
- polymer powder
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- 229920000642 polymer Polymers 0.000 title claims abstract description 84
- 229910000975 Carbon steel Inorganic materials 0.000 title claims abstract description 74
- 239000010962 carbon steel Substances 0.000 title claims abstract description 74
- 239000002131 composite material Substances 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 239000000843 powder Substances 0.000 claims abstract description 54
- 238000005245 sintering Methods 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims description 5
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 4
- 239000004952 Polyamide Substances 0.000 claims description 4
- 229920000331 Polyhydroxybutyrate Polymers 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 4
- 239000004793 Polystyrene Substances 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 238000007590 electrostatic spraying Methods 0.000 claims description 4
- 239000011256 inorganic filler Substances 0.000 claims description 4
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 4
- 239000003049 inorganic solvent Substances 0.000 claims description 4
- 229910001867 inorganic solvent Inorganic materials 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000005011 phenolic resin Substances 0.000 claims description 4
- 229920001568 phenolic resin Polymers 0.000 claims description 4
- 239000005015 poly(hydroxybutyrate) Substances 0.000 claims description 4
- 229920002647 polyamide Polymers 0.000 claims description 4
- -1 polypropylene Polymers 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 229920002223 polystyrene Polymers 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 4
- 238000005488 sandblasting Methods 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 239000012752 auxiliary agent Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000002203 pretreatment Methods 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 9
- 239000010959 steel Substances 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 6
- 239000002861 polymer material Substances 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 238000003466 welding Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D161/00—Coating compositions based on condensation polymers of aldehydes or ketones; Coating compositions based on derivatives of such polymers
- C09D161/04—Condensation polymers of aldehydes or ketones with phenols only
- C09D161/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/002—Priming paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/03—Powdery paints
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention relates to a composite polymer carbon steel pipe and a production method thereof, belonging to the technical field of steel pipes. The carbon steel pipe comprises a carbon steel pipe and a polymer composite layer sintered on the surface of the carbon steel pipe, wherein the polymer composite layer comprises a primer and polymer powder, the primer is uniformly coated on the surface of the carbon steel pipe, and the polymer powder is uniformly attached to the surface of the primer. The invention has the advantages that: the surface of the carbon steel pipe is uniformly coated with the primer so as to ensure the surface flatness of the carbon steel pipe, meanwhile, the primer is used as an auxiliary material to increase the binding force between a polymer powder sintering layer and the carbon steel pipe, polymer powder is sprayed on the surface of the primer, the carbon steel pipe sprayed with the polymer powder is placed into a sintering furnace to be sintered, and the carbon steel pipe with the surface covered with the polymer material can be obtained.
Description
Technical Field
The invention relates to a composite polymer carbon steel pipe and a production method thereof, belonging to the technical field of steel pipes.
Background
The steel pipe is applied to various industries such as a conveying pipeline, an engineering structure, thermal equipment, petrochemical industry, mechanical manufacturing, geological drilling, high-pressure equipment and the like at present, the existing steel pipe is generally a single-metal steel pipe, and under certain specific working conditions, the common single-metal steel pipe can not meet the use requirement, so that the composite steel pipe can be applied to the complex working conditions in the industry.
The composite steel pipe in the market at present mainly adopts composite of dissimilar metals, namely, metal pipes made of different materials are integrated, the composite steel pipe has high requirement on the wall thickness of an inner pipe and an outer pipe, the production of raw materials is troublesome, the quality of a product is heavy integrally, the problems of layering, stripping, collapse of an inner pipe and the like frequently occur in use, the maintenance is very troublesome, welding connection is needed in an application scene, and the welding problem of the composite pipe is one of the application difficulties due to different welding temperatures of different metals.
In order to solve the problems, the invention provides a composite polymer carbon steel pipe and a production method thereof, wherein a polymer material is compounded with carbon steel, and the polymer composite material has the greatest advantages of various materials, such as high strength, light weight, temperature resistance, corrosion resistance, heat insulation, insulation and the like, so as to prepare the composite polymer carbon steel pipe meeting the requirements.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provides a composite polymer carbon steel pipe and a production method thereof, which are used for solving the problems in the industry.
In order to solve the technical problems, the invention is realized by the following technical scheme: a composite polymer carbon steel pipe comprises a carbon steel pipe and a polymer composite layer sintered on the surface of the carbon steel pipe, wherein the polymer composite layer comprises a primer and polymer powder, the primer is uniformly coated on the surface of the carbon steel pipe, and the polymer powder is uniformly attached to the surface of the primer.
Preferably, the thickness of the primer is 0.1-0.3mm, the thickness of the polymer powder is 0.05-0.2mm, and the particle size of the polymer powder is 50-100 meshes.
Preferably, the primer is a mixture of phenolic resin, inorganic filler, solvent and auxiliaries.
Preferably, the polymer powder is one or a mixture of more of polyamide polymer powder, polypropylene polymer powder, polyhydroxybutyrate and polystyrene polymer powder.
A production method of a composite polymer carbon steel pipe comprises the following steps:
the method comprises the following steps: firstly, carrying out pretreatment such as acid washing, sand blasting and the like on the surface of the carbon steel pipe;
step two: then uniformly coating a primer on the surface of the carbon steel pipe, and filling out uneven flaws on the surface of the carbon steel pipe through the primer so as to ensure the surface flatness of the carbon steel pipe;
step three: after the primer is completely cured, uniformly spraying high polymer powder on the surface of the primer through electrostatic spraying equipment;
step four: placing the carbon steel pipe sprayed with the polymer powder in the third step into a sintering furnace for sintering, wherein the sintering temperature is 200-300 ℃, melting the polymer powder to a flowing state and being capable of automatically leveling, and preserving heat for 30-60 minutes;
step five: and (4) placing the carbon steel pipe subjected to heat preservation in the fourth step into normal-temperature air for natural cooling.
Compared with the prior art, the invention has the advantages that: the surface of the carbon steel pipe is uniformly coated with the primer, uneven flaws on the surface of the carbon steel pipe are filled and leveled through the primer so as to ensure the surface flatness of the carbon steel pipe, meanwhile, the primer is used as an auxiliary material to increase the binding force between a polymer powder sintered layer and the carbon steel pipe, and polymer powder is sprayed on the surface of the primer.
Description of the drawings:
the invention is further described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of the present invention.
In the figure: a carbon steel pipe 1; a polymer composite layer 2; primer 3; and (4) polymer powder.
The specific implementation mode is as follows:
the invention is described in detail below with reference to the following figures and embodiments:
example 1:
as shown in fig. 1, a composite polymer carbon steel pipe comprises a carbon steel pipe 1 and a polymer composite layer 2 sintered on the surface of the carbon steel pipe 1, wherein the polymer composite layer 2 comprises a primer 3 and polymer powder 4, the primer 3 is uniformly coated on the surface of the carbon steel pipe 1, and the polymer powder 4 is uniformly attached to the surface of the primer 3.
Further, the primer 3 is a mixture of phenolic resin, inorganic filler, solvent and auxiliary agent.
The polymer powder 4 is formed by mixing one or more of polyamide polymer powder, polypropylene polymer powder, polyhydroxybutyrate and polystyrene polymer powder.
A production method of a composite polymer carbon steel pipe comprises the following steps:
the method comprises the following steps: firstly, carrying out pretreatment such as acid washing, sand blasting and the like on the surface of the carbon steel pipe 1 to remove impurities on the surface of the carbon steel pipe 1;
step two: then evenly coating a primer 3 on the surface of the carbon steel pipe 1, wherein the thickness of the primer 3 is 0.1mm, filling up uneven flaws on the surface of the carbon steel pipe 1 through the primer 3 to ensure the surface flatness of the carbon steel pipe 1, and simultaneously, the primer as an auxiliary material can increase the bonding force between the polymer powder 4 and the carbon steel pipe 1,
step three: after the primer 3 is completely cured, uniformly spraying high polymer powder 4 on the surface of the primer 3 through electrostatic spraying equipment, wherein the thickness of the sprayed high polymer powder 4 is 0.05mm, and the granularity of the high polymer powder 4 is 50 meshes;
step four: placing the carbon steel pipe 1 sprayed with the polymer powder 4 in the third step into a sintering furnace for sintering at the sintering temperature of 200 ℃, melting the polymer powder 4 to be in a flowing state and capable of automatically leveling, and preserving heat for 30 minutes;
step five: and (5) placing the carbon steel pipe 1 subjected to heat preservation in the fourth step into normal-temperature air for natural cooling.
Example 2:
a composite polymer carbon steel pipe comprises a carbon steel pipe 1 and a polymer composite layer 2 sintered on the surface of the carbon steel pipe 1, wherein the polymer composite layer 2 comprises a primer 3 and polymer powder 4, the primer 3 is uniformly coated on the surface of the carbon steel pipe 1, and the polymer powder 4 is uniformly attached to the surface of the primer 3.
Further, the primer 3 is a mixture of phenolic resin, inorganic filler, solvent and auxiliary agent.
The polymer powder 4 is formed by mixing one or more of polyamide polymer powder, polypropylene polymer powder, polyhydroxybutyrate and polystyrene polymer powder.
A production method of a composite polymer carbon steel pipe comprises the following steps:
the method comprises the following steps: firstly, carrying out pretreatment such as acid washing, sand blasting and the like on the surface of the carbon steel pipe 1 to remove impurities on the surface of the carbon steel pipe 1;
step two: then evenly coating a primer 3 on the surface of the carbon steel pipe 1, wherein the thickness of the primer 3 is 0.3mm, filling out uneven flaws on the surface of the carbon steel pipe 1 through the primer 3 to ensure the surface flatness of the carbon steel pipe 1, and simultaneously, the primer as an auxiliary material can increase the binding force of the polymer powder 4 and the carbon steel pipe 1,
step three: after the primer 3 is completely cured, uniformly spraying high polymer powder 4 on the surface of the primer 3 through electrostatic spraying equipment, wherein the thickness of the sprayed high polymer powder 4 is 0.2mm, and the granularity of the high polymer powder 4 is 100 meshes;
step four: placing the carbon steel pipe 1 sprayed with the polymer powder 4 in the third step into a sintering furnace for sintering at the sintering temperature of 300 ℃, melting the polymer powder 4 to be in a flowing state and capable of automatically leveling, and preserving heat for 60 minutes;
step five: and (4) placing the carbon steel pipe 1 subjected to heat preservation in the fourth step into normal-temperature air for natural cooling.
It is to be emphasized that: the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and all simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (5)
1. A compound polymer carbon steel pipe which characterized in that: the carbon steel pipe comprises a carbon steel pipe (1) and a polymer composite layer (2) sintered on the surface of the carbon steel pipe (1), wherein the polymer composite layer (2) comprises a primer (3) and polymer powder (4), the primer (3) is uniformly coated on the surface of the carbon steel pipe (1), and the polymer powder (4) is uniformly attached to the surface of the primer (3).
2. The composite polymer carbon steel pipe according to claim 1, wherein: the thickness of the primer (3) is 0.1-0.3mm, the thickness of the polymer powder (4) is 0.05-0.2mm, and the particle size of the polymer powder (4) is 50-100 meshes.
3. The composite polymer carbon steel pipe according to claim 1, characterized in that: the primer (3) is a mixture of phenolic resin, inorganic filler, solvent and auxiliary agent.
4. The composite polymer carbon steel pipe according to claim 1, wherein: the polymer powder (4) is formed by mixing one or more of polyamide polymer powder, polypropylene polymer powder, polyhydroxybutyrate and polystyrene polymer powder.
5. The production method of the composite polymer carbon steel pipe is characterized by comprising the following steps:
the method comprises the following steps: firstly, carrying out acid washing, sand blasting and other pretreatments on the surface of the carbon steel pipe (1);
step two: then uniformly coating a primer (3) on the surface of the carbon steel pipe (1), and filling out uneven flaws on the surface of the carbon steel pipe (1) through the primer (3) so as to ensure the surface flatness of the carbon steel pipe (1);
step three: after the primer (3) is completely cured, uniformly spraying high polymer powder (4) on the surface of the primer (3) through electrostatic spraying equipment;
step four: placing the carbon steel pipe (1) sprayed with the polymer powder (4) in the third step into a sintering furnace for sintering at the sintering temperature of 200-300 ℃, melting the polymer powder (4) to be in a flowing state and capable of automatically leveling, and preserving heat for 30-60 minutes;
step five: and (4) placing the carbon steel pipe (1) subjected to heat preservation in the fourth step into normal-temperature air for natural cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210768304.7A CN114989692A (en) | 2022-07-01 | 2022-07-01 | Composite polymer carbon steel pipe and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210768304.7A CN114989692A (en) | 2022-07-01 | 2022-07-01 | Composite polymer carbon steel pipe and production method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN114989692A true CN114989692A (en) | 2022-09-02 |
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|---|---|---|---|
| CN202210768304.7A Pending CN114989692A (en) | 2022-07-01 | 2022-07-01 | Composite polymer carbon steel pipe and production method thereof |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116889965A (en) * | 2023-09-11 | 2023-10-17 | 山东正诺化工设备有限公司 | Preparation method of high-flux reinforced pipe |
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| CN102408817A (en) * | 2011-09-15 | 2012-04-11 | 山东科技大学 | Sandblast-free corrosion-proof composite coating for thermal spraying and preparation process thereof |
| JP2013244742A (en) * | 2012-05-30 | 2013-12-09 | Nippon Steel & Sumitomo Metal Corp | Polyolefin coated steel material having powder epoxy primer layer, and powder epoxy primer used therefor |
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2022
- 2022-07-01 CN CN202210768304.7A patent/CN114989692A/en active Pending
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| CN116889965A (en) * | 2023-09-11 | 2023-10-17 | 山东正诺化工设备有限公司 | Preparation method of high-flux reinforced pipe |
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Application publication date: 20220902 |