CN108948951A - Antirust welded pipe and preparation method thereof - Google Patents
Antirust welded pipe and preparation method thereof Download PDFInfo
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- CN108948951A CN108948951A CN201810633600.XA CN201810633600A CN108948951A CN 108948951 A CN108948951 A CN 108948951A CN 201810633600 A CN201810633600 A CN 201810633600A CN 108948951 A CN108948951 A CN 108948951A
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- Prior art keywords
- welded pipe
- antirust
- parts
- combined oxidation
- pipe
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- 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
- C09D5/08—Anti-corrosive 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
- C08K2003/3063—Magnesium sulfate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- 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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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a kind of antirust welded pipes, the combined oxidation coating for successively welding the welded pipe of formation including more steel pipes and being formed in steel pipe and welding junction surface, the combined oxidation coating is prepared by following parts by weight each component: 8-10 parts of colloidal silicon dioxide, 3-5 parts of phosphate, 3-5 parts of magnesium sulfate, 20-25 parts of epoxy resin, water-soluble phenolic resin 5-7 parts.It has outstanding rustless property at welding junction, substantially increases service life.
Description
Technical field
The present invention relates to a kind of welded pipes, more particularly, it relates to a kind of antirust welded pipe and preparation method thereof.
Background technique
In the prior art, the use of welded pipe tubing outdoors is seen everywhere, due to being chronically exposed in external environment, especially
Its welded pipe tubing as used in guardrail is easily easy to happen phenomenon of getting rusty for a long time under the action of rainwater at welding junction,
The performance for influencing welded pipe entirety, causes service life shorter.
Summary of the invention
For overcome the deficiencies in the prior art, it the purpose of the present invention is to provide a kind of antirust welded pipe, is connect in welding
There is outstanding rustless property at mouthful, substantially increase service life.
To solve the above problems, the technical solution adopted in the present invention is as follows:
A kind of antirust welded pipe successively welds the welded pipe of formation including more steel pipes and in steel pipe and welding junction
The combined oxidation coating that surface is formed, the combined oxidation coating are prepared by following parts by weight each component: colloidal silica
8-10 parts of silicon, 3-5 parts of phosphate, 3-5 parts of magnesium sulfate, 20-25 parts of epoxy resin, water-soluble phenolic resin 5-7 parts.
Preferably, the combined oxidation coating with a thickness of 0.05-0.1 μm.
Preferably, the phosphate is sodium phosphate or potassium phosphate.
The invention also includes a kind of preparation methods of antirust welded pipe, comprising:
S101., the welded pipe that more steel pipes are successively welded to formation using stainless steel electrode, to steel pipe surface and weldering
It is pre-processed at connection interface；
S102. according to the proportion, epoxy resin and water-soluble butadiene resin are added in container and are mixed and stirred for, stir 5-10min
Afterwards, be kept stirring it is constant, successively by colloidal silicon dioxide, phosphate, magnesium sulfate be added container in, continue stir 10-20min,
Combined oxidation fluid is made；
S103. it after steel pipe and welding junction surface apply combined oxidation fluid, is thermally dried, in welding pipe surface
Form combined oxidation coating.
Further, in the step S101, the stainless steel electrode of use is made by following components in percentage by weight: carbon
0.1-0.2%, chromium 25-30%, molybdenum 3-3.5%, silicon 0.5-1.0%, nickel 18-24%, remaining is iron.
Further, in the step S101, pre-process for at welding junction polish after, to whole root bead take over surface into
Row alkalinity ungrease treatment.
Further, in the step S102, mixing speed 200-300r/min.
Further, in the step S103, composite oxygen is applied to welded pipe tube surfaces using spraying or coating method
Change fluid.
Further, in the step S103, temperature is 125-135 DEG C when heat drying.
Compared with prior art, the beneficial effects of the present invention are: in the present invention, colloidal silicon dioxide and phosphate and sulphur
Sour magnesium forms the barrier film for stablizing densification, generates sealing effect in welding pipe surface, reduces the extraneous influence to welded pipe, from
And making welded pipe integrally has outstanding rustless property, substantially increases its service life.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of antirust welded pipe in the present invention.
Specific embodiment
Invention is further described in detail With reference to embodiment.
As shown in Figure 1, the present invention includes a kind of antirust welded pipe, the weldering of formation is successively welded including more steel pipes 1
Adapter tube and the combined oxidation coating 3 formed in steel pipe 1 and 2 surface of welding junction, combined oxidation coating 3 is by following parts by weight
Each component is prepared: 8-10 parts of colloidal silicon dioxide, 3-5 parts of phosphate, and 3-5 parts of magnesium sulfate, 20-25 parts of epoxy resin, water
5-7 parts of resite.
Preferably, combined oxidation coating 3 with a thickness of 0.05-0.1 μm；The phosphate is sodium phosphate or potassium phosphate.
The invention also includes a kind of preparation methods of antirust welded pipe, comprising:
S101., the welded pipe that more steel pipes are successively welded to formation using stainless steel electrode, to steel pipe surface and weldering
It is pre-processed at connection interface；
S102. according to the proportion, epoxy resin and water-soluble butadiene resin are added in container and are mixed and stirred for, stir 5-10min
Afterwards, be kept stirring it is constant, successively by colloidal silicon dioxide, phosphate, magnesium sulfate be added container in, continue stir 10-20min,
Combined oxidation fluid is made；
S103. it after steel pipe and welding junction surface apply combined oxidation fluid, is thermally dried, in welding pipe surface
Form combined oxidation coating.
Further, in the step S101, the stainless steel electrode of use is made by following components in percentage by weight: carbon
0.1-0.2%, chromium 25-30%, molybdenum 3-3.5%, silicon 0.5-1.0%, nickel 18-24%, remaining is iron；In the step S101, pretreatment
After to polishing at welding junction, alkaline ungrease treatment is carried out to whole root bead adapter tube surface；In the step S102, mixing speed
For 200-300r/min；In the step S103, combined oxidation is applied to welded pipe tube surfaces using spraying or coating method
Fluid；In the step S103, temperature is 125-135 DEG C when heat drying.
Embodiment 1
Prepare antirust welded pipe G-1
1 combined oxidation coating formula table of table
| Component | Dosage (kg) |
| Colloidal silicon dioxide | 8.0 |
| Potassium phosphate | 3.5 |
| Magnesium sulfate | 3.2 |
| Epoxy resin | 20.5 |
| Water-soluble phenolic resin | 5.2 |
S101. more steel pipes are successively welded using stainless steel electrode by the welded pipe of formation, to beating at welding junction
After mill, alkaline ungrease treatment is carried out to whole root bead adapter tube surface；The stainless steel electrode of use is by following components in percentage by weight
Be made: carbon 0.1%, chromium 25%, molybdenum 3%, silicon 0.5%, nickel 24%, remaining is iron；
S102. according to the proportion, epoxy resin and water-soluble butadiene resin are added in container and are mixed and stirred for, mixing speed is
200r/min, stir 10min after, be kept stirring it is constant, successively by colloidal silicon dioxide, phosphate, magnesium sulfate be added container in,
Continue to stir 20min, combined oxidation fluid is made；
S103. after welded pipe tube surfaces spray combined oxidation fluid, it is thermally dried (125 DEG C of temperature), in welded pipe
Surface forms combined oxidation coating, with a thickness of 0.07 μm.
Embodiment 2
Prepare antirust welded pipe G-2
2 combined oxidation coating formula table of table
| Component | Dosage (kg) |
| Colloidal silicon dioxide | 8.8 |
| Sodium phosphate | 4.5 |
| Magnesium sulfate | 3.8 |
| Epoxy resin | 23.0 |
| Water-soluble phenolic resin | 6.5 |
S201. more steel pipes are successively welded using stainless steel electrode by the welded pipe of formation, to beating at welding junction
After mill, alkaline ungrease treatment is carried out to whole root bead adapter tube surface；The stainless steel electrode of use is by following components in percentage by weight
Be made: carbon 0.15%, chromium 28%, molybdenum 3.2%, silicon 0.8%, nickel 22%, remaining is iron；
S202. according to the proportion, epoxy resin and water-soluble butadiene resin are added in container and are mixed and stirred for, mixing speed is
300r/min, stir 10min after, be kept stirring it is constant, successively by colloidal silicon dioxide, phosphate, magnesium sulfate and organic pigment
It is added in container, continues to stir 15min, combined oxidation fluid is made；
S203. after welded pipe tube surfaces are coated with combined oxidation fluid, it is thermally dried (130 DEG C of temperature), in welded pipe
Surface forms combined oxidation coating, with a thickness of 0.08 μm.
Embodiment 3
Prepare antirust welded pipe G-3
3 combined oxidation coating formula table of table
| Component | Dosage (kg) |
| Colloidal silicon dioxide | 10.0 |
| Potassium phosphate | 4.8 |
| Magnesium sulfate | 4.8 |
| Epoxy resin | 24.5 |
| Water-soluble phenolic resin | 6.8 |
S301. more steel pipes are successively welded using stainless steel electrode by the welded pipe of formation, to beating at welding junction
After mill, alkaline ungrease treatment is carried out to whole root bead adapter tube surface；The stainless steel electrode of use is by following components in percentage by weight
Be made: carbon 0.2%, chromium 30%, molybdenum 3.5%, silicon 1.0%, nickel 24%, remaining is iron；
S302. according to the proportion, epoxy resin and water-soluble butadiene resin are added in container and are mixed and stirred for, mixing speed is
300r/min is kept stirring constant after stirring 5min, successively adds colloidal silicon dioxide, phosphate, magnesium sulfate and organic pigment
Enter in container, continues to stir 20min, combined oxidation fluid is made；
S303. after welded pipe tube surfaces spray combined oxidation fluid, it is thermally dried (135 DEG C of temperature), in welded pipe
Surface forms combined oxidation coating, with a thickness of 0.09 μm.
Embodiment 4
Following detect is carried out respectively to welded pipe G-1 ~ G-3 of embodiment 1-3 preparation:
4.1, appearance of coat: welded pipe G-1 ~ G-3 appearance uniform, without irregular phenomenon；
4.2, comprehensive corrosion test (CCT): the surface welded pipe G-1 ~ G-3 does not occur obvious rusty stain；
4.3, comprehensive corrosion test (CCT) after alkali degreasing: the surface welded pipe G-1 ~ G-3 does not occur obvious rusty stain；
4.4, machinability: welded pipe G-1 ~ G-3 can be completely stretched during deep-draw, and paint and do not occur obscission.
Above data shows that antirust welded pipe surface covering and welded pipe tubing are firmly combined in the present invention, make welded pipe
With outstanding rustless property, service life is substantially increased.
It will be apparent to those skilled in the art that can make various other according to the above description of the technical scheme and ideas
Corresponding change and deformation, and all these changes and deformation all should belong to the protection scope of the claims in the present invention
Within.
Claims (9)
1. a kind of antirust welded pipe, which is characterized in that successively weld the welded pipe of formation including more steel pipes and in steel
The combined oxidation coating that pipeline and welding junction surface are formed, the combined oxidation coating prepared by following parts by weight each component and
At:
8-10 parts of colloidal silicon dioxide,
3-5 parts of phosphate,
3-5 parts of magnesium sulfate,
20-25 parts of epoxy resin,
Water-soluble phenolic resin 5-7 parts.
2. antirust welded pipe as described in claim 1, which is characterized in that the combined oxidation coating with a thickness of 0.05-0.1
μm。
3. antirust welded pipe as described in claim 1, which is characterized in that the phosphate is sodium phosphate or potassium phosphate.
4. the preparation method of any one of the claim 1-3 antirust welded pipe, comprising:
S101., the welded pipe that more steel pipes are successively welded to formation using stainless steel electrode, to steel pipe surface and weldering
It is pre-processed at connection interface；
S102. according to the proportion, epoxy resin and water-soluble butadiene resin are added in container and are mixed and stirred for, stir 5-10min
Afterwards, be kept stirring it is constant, successively by colloidal silicon dioxide, phosphate, magnesium sulfate be added container in, continue stir 10-20min,
Combined oxidation fluid is made；
S103. it after steel pipe and welding junction surface apply combined oxidation fluid, is thermally dried, in welding pipe surface
Form combined oxidation coating.
5. antirust welded pipe as claimed in claim 4, which is characterized in that in the step S101, the stainless steel electrode of use
It is made by following components in percentage by weight: carbon 0.1-0.2%, chromium 25-30%, molybdenum 3-3.5%, silicon 0.5-1.0%, nickel 18-24%,
Remaining is iron.
6. antirust welded pipe as claimed in claim 4, which is characterized in that in the step S101, pre-process to be connect to welding
After polishing at mouthful, alkaline ungrease treatment is carried out to whole root bead adapter tube surface.
7. antirust welded pipe as claimed in claim 4, which is characterized in that in the step S102, mixing speed 200-
300r/min。
8. antirust welded pipe as claimed in claim 4, which is characterized in that in the step S103, using spraying or coating side
Formula applies combined oxidation fluid to welded pipe tube surfaces.
9. antirust welded pipe as claimed in claim 4, which is characterized in that in the step S103, temperature is when heat drying
125-135℃。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810633600.XA CN108948951A (en) | 2018-06-20 | 2018-06-20 | Antirust welded pipe and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810633600.XA CN108948951A (en) | 2018-06-20 | 2018-06-20 | Antirust welded pipe and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108948951A true CN108948951A (en) | 2018-12-07 |
Family
ID=64491282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810633600.XA Pending CN108948951A (en) | 2018-06-20 | 2018-06-20 | Antirust welded pipe and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN108948951A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102746766A (en) * | 2012-07-23 | 2012-10-24 | 江苏华夏制漆科技有限公司 | Water -borne anticorrosion paint and method for preparing same |
| CN204901104U (en) * | 2015-09-01 | 2015-12-23 | 泰州市佳孚不锈钢制品有限公司 | Nonrust steel pipe of strenghthened type |
-
2018
- 2018-06-20 CN CN201810633600.XA patent/CN108948951A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102746766A (en) * | 2012-07-23 | 2012-10-24 | 江苏华夏制漆科技有限公司 | Water -borne anticorrosion paint and method for preparing same |
| CN204901104U (en) * | 2015-09-01 | 2015-12-23 | 泰州市佳孚不锈钢制品有限公司 | Nonrust steel pipe of strenghthened type |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 211600 Guoqiang Road, Huaian Jinhu New Economic Development Zone, Huaian City, Jiangsu Province, 188 Applicant after: Jiangsu Aikeqing Transportation Technology Co., Ltd. Address before: 211600 Guoqiang Road, Jinhu New Economic Development Zone, Huaian City, Jiangsu Province, 188 Applicant before: Jiangsu Ai Keqing Industrial Co., Ltd. |
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| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181207 |
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| RJ01 | Rejection of invention patent application after publication |