CN202733334U - Cold-drawn steel pipe with corrosion-resistant welding joint - Google Patents
Cold-drawn steel pipe with corrosion-resistant welding joint Download PDFInfo
- Publication number
- CN202733334U CN202733334U CN 201220442636 CN201220442636U CN202733334U CN 202733334 U CN202733334 U CN 202733334U CN 201220442636 CN201220442636 CN 201220442636 CN 201220442636 U CN201220442636 U CN 201220442636U CN 202733334 U CN202733334 U CN 202733334U
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- CN
- China
- Prior art keywords
- steel pipe
- corrosion
- cold
- welding joint
- phenolic aldehyde
- Prior art date
- 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.)
- Expired - Fee Related
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- Rigid Pipes And Flexible Pipes (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
The utility model discloses a cold-drawn steel pipe with a corrosion-resistant welding joint. The cold-drawn steel pipe comprises a first steel pipe and a second steel pipe fixedly welded with the first steel pipe. A phenolic aldehyde epoxy coating layer is arranged at a welding joint of the first steel pipe and the second steel pipe. In order to improve corrosion resistance of the welding joint, an anti-rust painting layer is coated on the outer surface of the phenolic aldehyde epoxy coating layer. By combining phenolic aldehyde epoxy coating and anti-rust paints which are excellent in corrosion resistance, corrosion resistance of the welding joint is effectively improved, and the service life of the cold-drawn steel pipe is prolonged.
Description
Technical field
The utility model relates to a kind of cold drawing steel tube with corrosion-resistant weld seam.
Background technique
In known technical field, cold drawing steel tube is to carry out a kind of seamless type steel pipe that cold rolling processing obtains by duo mill, the general field that is used for precision optical machinery component or liquid transporting, cold drawing steel tube generally is fixedly connected by welding, and existing butt welded seam is without any etch-proof processing, and overbrushing one deck rust proof paint is so its anticorrosion ability is limited, corrosion occurs in the weld joint easily, causes the steel pipe reduction in working life.
Novolac epoxy resin is made raw material with linear phenol-aldehyde resin and epoxychloropropane and is reacted under alkali condition and form, and is a kind of base-material that has the powder coating of use value, and it has good decay resistance.
The model utility content
The technical problems to be solved in the utility model is: a kind of cold drawing steel tube with corrosion-resistant weld seam is provided.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of cold drawing steel tube with corrosion-resistant weld seam, comprise the first steel pipe and the second steel pipe of fixing with the first steel-pipe welding, be provided with the phenolic aldehyde epoxy paint layer at the place, welding slit of described the first steel pipe and the second steel pipe.
Further, in order to strengthen the anti-corrosion capability of weld joint, the utility model is coated with the rust preventive oil enamelled coating at the outer surface of described phenolic aldehyde epoxy paint layer.
The beneficial effects of the utility model are: the utility model has the phenolic aldehyde epoxy coating of excellent Corrosion Protection and the combination of rust proof paint by employing, effectively raises the Corrosion Protection at place, welding position, has prolonged the working life of cold drawing steel tube.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is partial cross-section structural representation of the present utility model.
Among the figure: 1. the first steel pipe, 2. the second steel pipe, 3. phenolic aldehyde epoxy paint layer.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic representation of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
A kind of cold drawing steel tube with corrosion-resistant weld seam of the utility model as shown in Figure 1, comprise the first steel pipe 1 and the second steel pipe 2 that is welded and fixed with the first steel pipe 1, the place is provided with phenolic aldehyde epoxy paint layer 3 in the welding slit of described the first steel pipe 1 and the second steel pipe 2, is coated with the rust preventive oil enamelled coating at the outer surface of described phenolic aldehyde epoxy paint layer 3.
Take above-mentioned foundation desirable embodiment of the present utility model as enlightenment, by above-mentioned description, the relevant staff can in the scope that does not depart from this model utility technological thought, carry out various change and modification fully.The technical scope of this model utility is not limited to the content on the specification, must determine its technical scope according to the claim scope.
Claims (2)
1. cold drawing steel tube with corrosion-resistant weld seam, comprise the first steel pipe (1) and with the second steel pipe (2) that the first steel pipe (1) is welded and fixed, it is characterized in that: the place is provided with phenolic aldehyde epoxy paint layer (3) in the welding slit of described the first steel pipe (1) and the second steel pipe (2).
2. a kind of cold drawing steel tube with corrosion-resistant weld seam as claimed in claim 1, it is characterized in that: the outer surface in described phenolic aldehyde epoxy paint layer (3) is coated with the rust preventive oil enamelled coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220442636 CN202733334U (en) | 2012-08-31 | 2012-08-31 | Cold-drawn steel pipe with corrosion-resistant welding joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220442636 CN202733334U (en) | 2012-08-31 | 2012-08-31 | Cold-drawn steel pipe with corrosion-resistant welding joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202733334U true CN202733334U (en) | 2013-02-13 |
Family
ID=47659033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220442636 Expired - Fee Related CN202733334U (en) | 2012-08-31 | 2012-08-31 | Cold-drawn steel pipe with corrosion-resistant welding joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202733334U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105109788A (en) * | 2015-08-06 | 2015-12-02 | 四川晶汇科技有限公司 | Process for processing paint-packed iron drum |
| CN108387000A (en) * | 2018-04-11 | 2018-08-10 | 艾欧史密斯(中国)热水器有限公司 | The production method of stainless heat exchanger, gas-fired water heater and heat exchanger |
-
2012
- 2012-08-31 CN CN 201220442636 patent/CN202733334U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105109788A (en) * | 2015-08-06 | 2015-12-02 | 四川晶汇科技有限公司 | Process for processing paint-packed iron drum |
| CN108387000A (en) * | 2018-04-11 | 2018-08-10 | 艾欧史密斯(中国)热水器有限公司 | The production method of stainless heat exchanger, gas-fired water heater and heat exchanger |
| CN108387000B (en) * | 2018-04-11 | 2023-09-22 | 艾欧史密斯(中国)热水器有限公司 | Stainless steel heat exchanger, gas water heating device and manufacturing method of heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20130831 |