Wear-resistant high-strength stainless steel welded pipe

Abstract

The utility model relates to a wear-resistant high-strength stainless steel welded pipe which comprises a welded pipe body, an outer protective strip is arranged outside a welding seam of the welded pipe body, an inner protective strip is arranged inside the welding seam, and a wear-resistant layer is arranged outside the welded pipe body. The stainless steel welded pipe is wear-resistant and has high strength performance.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel welded pipes, in particular to a wear-resistant high-strength stainless steel welded pipe. Background Art

[0002] Stainless steel welded pipe, referred to as welded pipe, is a steel pipe made by welding common steel or steel strip after curling and forming by a unit and a mold. The production process of welded steel pipe is simple, the production efficiency is high, and there are many varieties and specifications. Most of the stainless steel welded pipes are used in industry, mainly for conveying water, gas, oil and heating steam. The production process of welded pipe is simple, the production efficiency is high, the variety and specifications are wide, and the equipment investment is small, but the general strength is lower than that of seamless steel pipe. Therefore, when stainless steel welded pipe is hit, it is easy to bend and deform, causing problems such as breakage. At the same time, the application scenarios of stainless steel welded pipe require it to have good wear resistance. For this reason, it is necessary to provide a wear-resistant and high-strength stainless steel welded pipe. Utility Model Content

[0003] The utility model aims to design a wear-resistant high-strength stainless steel welded pipe, which can realize wear resistance and high-strength performance.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A wear-resistant high-strength stainless steel welded pipe comprises a welded pipe body, wherein an outer protective strip is arranged outside the weld of the welded pipe body, an inner protective strip is arranged inside the weld of the welded pipe body, and a wear-resistant layer is arranged outside the welded pipe body.

[0006] Furthermore, in the above-mentioned wear-resistant high-strength stainless steel welded pipe, a reinforcing piece is also provided on the outer side of the inner protective strip, and both ends of the reinforcing piece are respectively welded to the welded pipe body on both sides of the weld.

[0007] Furthermore, in the above-mentioned wear-resistant high-strength stainless steel welded pipe, the reinforcement member is welded to the inner protective strip.

[0008] Furthermore, in the above-mentioned wear-resistant high-strength stainless steel welded pipe, the reinforcing member cooperates with the inner protective strip.

[0009] Furthermore, in the above-mentioned wear-resistant high-strength stainless steel welded pipe, a protective layer is also provided on the outside of the welded pipe body, and the protective layer is located between the welded pipe body and the wear-resistant layer.

[0010] Furthermore, in the above-mentioned wear-resistant high-strength stainless steel welded pipe, a protective layer is also provided on the outside of the welded pipe body, and the protective layer is located outside the wear-resistant layer.

[0011] Furthermore, in the above-mentioned wear-resistant high-strength stainless steel welded pipe, the outside of the welded pipe body is also provided with a protective layer and a protective layer, the protective layer is located between the welded pipe body and the wear-resistant layer, and the protective layer is located outside the wear-resistant layer.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the utility model provides a wear-resistant high-strength stainless steel welded pipe, which prevents the outside from directly affecting the weld and strengthens the connection of the welded pipe body on both sides of the weld by respectively setting an inner protection strip and an outer protection strip on the inner and outer sides of the weld of the welded pipe body, so as to improve the strength of the welded pipe, and the wear-resistant layer improves the hardness of the welded pipe and improves the wear-resistant effect. The stainless steel welded pipe is wear-resistant and has high strength performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0016] Figure 3 It is a front view of the utility model;

[0017] The names of the components marked in the figure are as follows:

[0018] 1. Welded pipe body; 2. Protective layer; 3. Wear-resistant layer; 4. Protective layer; 5. Outer protective strip; 6. Inner protective strip; 7. Reinforcement. DETAILED DESCRIPTION

[0019] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0020] Example: Please refer to Figure 1-3A wear-resistant high-strength stainless steel welded pipe comprises a welded pipe body 1, an outer protective strip 5 is welded outside the weld of the welded pipe body 1, and an inner protective strip 6 is welded inside the weld. The outer protective strip 5 and the inner protective strip 6 play the role of preventing the outside from directly affecting the weld and strengthening the connection of the welded pipe body 1 on both sides of the weld. The surface of the outer protective strip 5 is polished and smooth, and the surface of the outer protective strip 5 is a smooth arc surface to avoid the edges and corners on the outer protective strip 5 from hurting people. The outside of the welded pipe body 1 is provided with a protective layer 2, a wear-resistant layer 3 and a protective layer 4, wherein the protective layer 2 is directly located outside the welded pipe body 1, the wear-resistant layer 3 is located outside the protective layer 2, and the protective layer 4 is located outside the wear-resistant layer 3. The protective layer 2 is sprayed on the surface of the welded pipe body 1, and the wear-resistant ceramic coating is used, which is a commonly used coating. It is used to improve the surface hardness of the welded pipe body 1 and can improve the service life of the welded pipe body 1; the wear-resistant layer 3 is sprayed on the surface of the protective layer 2, and the polymer ceramic polymer wear-resistant coating is used, which can improve the hardness of the protective layer 2 and improve the wear-resistant effect. In other specific embodiments, the wear-resistant layer 3 can also be directly sprayed on the surface of the welded pipe body 1; the protective layer 4 is sprayed on the surface of the wear-resistant layer 3, and the commonly used metal coating can be used, which can bring corrosion resistance and high temperature resistance to the surface of the wear-resistant layer 3, play a protective role on the wear-resistant layer 3, and reduce the possibility of the wear-resistant layer 3 being corroded and falling off by the outside. When spraying the protective layer 2, the wear-resistant layer 3 and the protective layer 4, not only can they be sprayed on the surface of the welded pipe body 1, but also the surface of the outer protective strip 5 can be sprayed. A reinforcing member 7 is provided on the outer side of the inner protection strip 6, and the two ends of the reinforcing member 7 are respectively welded to the welded pipe body 1 on both sides of the weld, so as to further strengthen the connection of the welded pipe body 1 on both sides of the weld, and at the same time, it plays a protective role for the inner protection strip 6. In this embodiment, a groove matching the shape of the inner protection strip 6 is provided on the reinforcing member 7, and the reinforcing member 7 is embedded with the inner protection strip 6 through the groove. In other specific embodiments, the reinforcing member 7 may be welded to the inner protection strip 6.

[0021] Working principle of this embodiment: This embodiment provides a wear-resistant high-strength stainless steel welded pipe, which prevents the outside from directly affecting the weld and strengthens the connection of the welded pipe body 1 on both sides of the weld by setting an inner protection strip 6 and an outer protection strip 5 on the inner and outer sides of the weld of the welded pipe body 1, so as to improve the strength of the welded pipe, and the wear-resistant layer 3 improves the hardness of the welded pipe and improves the wear-resistant effect. The stainless steel welded pipe is wear-resistant and has high strength performance.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an element centered thereon. The terms "upper", "lower", "left", "right", "front", "rear" and similar expressions used herein are for illustrative purposes only.

[0023] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A wear-resistant high-strength stainless steel welded pipe, comprising a welded pipe body (1), characterized in that: An outer protective strip (5) is provided on the outside of the weld seam of the welded pipe body (1), and an inner protective strip (6) is provided on the inside. A wear-resistant layer (3) is provided on the outside of the welded pipe body (1).

2. The wear-resistant high-strength stainless steel welded pipe according to claim 1, characterized in that: A reinforcing piece (7) is also provided on the outer side of the inner protection strip (6), and two ends of the reinforcing piece (7) are respectively welded to the welded pipe body (1) on both sides of the weld.

3. The wear-resistant high-strength stainless steel welded pipe according to claim 2, characterized in that: The reinforcing member (7) is welded to the inner protective strip (6).

4. The wear-resistant high-strength stainless steel welded pipe according to claim 2, characterized in that: The reinforcing member (7) cooperates with the inner protective strip (6).

5. The wear-resistant high-strength stainless steel welded pipe according to claim 1, characterized in that: A protective layer (2) is also provided on the outside of the welded pipe body (1), and the protective layer (2) is located between the welded pipe body (1) and the wear-resistant layer (3).

6. The wear-resistant high-strength stainless steel welded pipe according to claim 1, characterized in that: The outside of the welded pipe body (1) is also provided with a protective layer (4), and the protective layer (4) is located outside the wear-resistant layer (3).

7. The wear-resistant high-strength stainless steel welded pipe according to claim 1, characterized in that: The outside of the welded pipe body (1) is also provided with a protective layer (2) and a protective layer (4), wherein the protective layer (2) is located between the welded pipe body (1) and the wear-resistant layer (3), and the protective layer (4) is located outside the wear-resistant layer (3).

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