CN214171540U - High-chromium corrosion-resistant cold-drawn steel pipe - Google Patents
High-chromium corrosion-resistant cold-drawn steel pipe Download PDFInfo
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- CN214171540U CN214171540U CN202022656262.7U CN202022656262U CN214171540U CN 214171540 U CN214171540 U CN 214171540U CN 202022656262 U CN202022656262 U CN 202022656262U CN 214171540 U CN214171540 U CN 214171540U
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Abstract
The utility model belongs to the technical field of the cold drawn steel tube technique and specifically relates to a high chromium corrosion resistant type cold drawn steel tube, including the steel pipe body, the steel pipe body includes high chromium alloy layer, and high chromium alloy layer's inboard is provided with inner wall polishing layer, and high chromium alloy layer's the outside is provided with the carburization layer, and the outside of carburization layer is electroplated with the galvanizing coat, and the outside coating of galvanizing coat has the anticorrosive coating. The utility model discloses an anticorrosive coating adopts the epoxy dope layer, and the epoxy dope layer have pollution-free, the melting viscosity is low, film firm, the levelling nature is good, do not need the priming paint to film, characteristics such as mechanical properties are good, especially possess excellent reactivity and storage stability, corrosion resistance, chemical resistance nature, this corrosion resistance that has strengthened the cold drawn steel pipe greatly.
Description
Technical Field
The utility model relates to a cold drawn steel tube technical field especially relates to a high chromium corrosion resistant type cold drawn steel tube.
Background
The cold-drawn steel tube is a precise cold-drawn seamless tube widely applied to the fields of large-scale liquid conveying, mechanical structures, hydraulic equipment and the like, can greatly save the working hours of machining, improves the utilization rate of materials, and is beneficial to improving the quality and the precision of products; in the field of actual liquid transportation, the steel pipe is generally buried underground or is in an environment with high water vapor content for a long time, so that the steel pipe is easy to corrode to cause failure of the steel pipe, and the service life of the steel pipe is shortened; in addition, the existing cold-drawn steel pipe is generally cast by carbon steel, but the carbon steel pipe is easy to be slightly deformed under high pressure in the liquid conveying process, so that the service life of the steel pipe is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem of easy corrosion in the prior art and providing a high-chromium corrosion-resistant cold-drawn steel tube.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the high-chromium corrosion-resistant cold-drawn steel pipe comprises a steel pipe body, wherein the steel pipe body comprises a high-chromium alloy layer, an inner wall polishing layer is arranged on the inner side of the high-chromium alloy layer, a carburized layer is arranged on the outer side of the high-chromium alloy layer, a zinc coating is electroplated on the outer side of the carburized layer, and an anti-corrosion layer is coated on the outer side of the zinc coating.
Preferably, chamfer incisions are formed in the two ends of the steel pipe body, and the surfaces of the chamfer incisions are polished smoothly.
Preferably, the thickness of the inner wall polishing layer is 1-2 mm, the thickness of the high-chromium alloy layer is 2-3 mm, the thickness of the carburized layer is 0.5-1 mm, the thickness of the zinc coating layer is 1-2 mm, and the thickness of the corrosion-resistant layer is 0.5-1 mm.
Preferably, the anticorrosive coating is an epoxy resin coating layer.
The utility model provides a high chromium corrosion resistant type cold drawn steel pipe, beneficial effect lies in: the anticorrosive coating adopts an epoxy resin coating layer, and the epoxy resin coating layer has the characteristics of no pollution, low melt viscosity, firm coating, good leveling property, no need of primer coating, good mechanical property and the like, and particularly has excellent reaction activity, storage stability, corrosion resistance and chemical resistance, so that the corrosion resistance of the cold-drawn steel pipe is greatly enhanced; in addition, the high-chromium alloy in the high-chromium alloy layer has high hardness and high wear resistance, so that the strength of the cold-drawn steel pipe is greatly enhanced.
Drawings
Fig. 1 is a schematic structural view of a high-chromium corrosion-resistant cold-drawn steel tube according to the present invention;
fig. 2 is the structural schematic diagram of the steel pipe body of the high-chromium corrosion-resistant cold-drawn steel pipe provided by the utility model.
In the figure: the steel pipe comprises a steel pipe body 1, chamfer cuts 2, a high-chromium alloy layer 11, an inner wall polishing layer 12, a carburized layer 13, a zinc coating layer 14 and an anticorrosive layer 15.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-2, a high-chromium corrosion-resistant cold-drawn steel tube comprises a steel tube body 1, chamfer cuts 2 are formed at two ends of the steel tube body 1, the surfaces of the chamfer cuts 2 are polished smoothly, the steel tube body 1 comprises a high-chromium alloy layer 11, an inner wall polishing layer 12 is arranged on the inner side of the high-chromium alloy layer 11, a carburized layer 13 is arranged on the outer side of the high-chromium alloy layer 11, a zinc coating layer 14 is electroplated on the outer side of the carburized layer 13, an anti-corrosion layer 15 is coated on the outer side of the zinc coating layer 14, the anti-corrosion layer 15 is an epoxy resin coating layer, the thickness of the inner wall polishing layer 12 is 1-2 mm, the thickness of the high-chromium alloy layer 11 is 2-3 mm, the thickness of the carburized layer 13 is 0.5-1 mm, the thickness of the zinc coating layer 14 is 1-2 mm, and the thickness of the anti-corrosion layer 15 is 0.5-1 mm.
The anticorrosive layer 15 is an epoxy resin coating layer which has the characteristics of no pollution, low melt viscosity, firm coating, good leveling property, no need of primer coating, good mechanical property and the like, particularly has excellent reaction activity, storage stability, corrosion resistance and chemical resistance, and greatly enhances the corrosion resistance of the cold-drawn steel pipe; in addition, the high chromium alloy in the high chromium alloy layer 11 has high hardness and high wear resistance, which greatly enhances the strength of the cold drawn steel pipe.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (4)
1. The high-chromium corrosion-resistant cold-drawn steel pipe comprises a steel pipe body (1) and is characterized in that the steel pipe body (1) comprises a high-chromium alloy layer (11), an inner wall polishing layer (12) is arranged on the inner side of the high-chromium alloy layer (11), a carburized layer (13) is arranged on the outer side of the high-chromium alloy layer (11), a zinc-plated layer (14) is electroplated on the outer side of the carburized layer (13), and an anti-corrosion layer (15) is coated on the outer side of the zinc-plated layer (14).
2. The high-chromium corrosion-resistant cold-drawn steel pipe according to claim 1, wherein chamfer cuts (2) are formed at both ends of the steel pipe body (1), and the surfaces of the chamfer cuts (2) are polished smooth.
3. The high-chromium corrosion-resistant cold-drawn steel pipe according to claim 1, wherein the thickness of the inner wall polished layer (12) is 1-2 mm, the thickness of the high-chromium alloy layer (11) is 2-3 mm, the thickness of the carburized layer (13) is 0.5-1 mm, the thickness of the zinc-plated layer (14) is 1-2 mm, and the thickness of the corrosion-resistant layer (15) is 0.5-1 mm.
4. A high-chromium corrosion-resistant cold-drawn steel pipe according to claim 2, wherein said corrosion-resistant layer (15) is an epoxy resin coating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022656262.7U CN214171540U (en) | 2020-11-17 | 2020-11-17 | High-chromium corrosion-resistant cold-drawn steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022656262.7U CN214171540U (en) | 2020-11-17 | 2020-11-17 | High-chromium corrosion-resistant cold-drawn steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214171540U true CN214171540U (en) | 2021-09-10 |
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ID=77600773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022656262.7U Active CN214171540U (en) | 2020-11-17 | 2020-11-17 | High-chromium corrosion-resistant cold-drawn steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214171540U (en) |
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2020
- 2020-11-17 CN CN202022656262.7U patent/CN214171540U/en active Active
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