CN212564767U

CN212564767U - Build-up welding wear-resisting composite steel pipe

Info

Publication number: CN212564767U
Application number: CN202020941446.5U
Authority: CN
Inventors: 金明成
Original assignee: YANGZHOU JINXIN PIPES CO Ltd
Current assignee: YANGZHOU JINXIN PIPES CO Ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-02-19
Anticipated expiration: 2030-05-29

Abstract

The utility model discloses a wear-resisting compound steel pipe of build-up welding relates to compound steel pipe technical field, including steel pipe base member layer, the inboard fixedly connected with high chromium carbide wearing layer on steel pipe base member layer, the surface of high chromium carbide wearing layer is provided with the microcrack that prevents high chromium carbide wearing layer surface, the outside fixedly connected with galvanizing coat on steel pipe base member layer. This wear-resisting compound steel pipe of build-up welding can improve the wearability on steel pipe matrix layer through high chromium carbide wearing layer to can improve the service life of steel pipe, can prevent through the galvanizing coat that the steel pipe from beginning to break, damage from the extexine, and can reduce the cost of maintenance of steel pipe, can improve the compressive capacity on steel pipe matrix layer through the crazing line on high chromium carbide wearing layer surface.

Description

Build-up welding wear-resisting composite steel pipe

Technical Field

The utility model relates to a compound steel pipe technical field specifically is a wear-resisting compound steel pipe of build-up welding.

Background

Surfacing is an economical and rapid process method for modifying the surface of materials, and is increasingly widely applied to manufacturing and repairing parts in various industrial departments. In order to most effectively exert the function of the overlay layer, it is desired to adopt an overlay welding method having a small dilution of the base material, a high deposition rate, and excellent overlay performance, i.e., an overlay welding technique of high quality, high efficiency, and low dilution rate.

However, the analysis shows that the existing surfacing wear-resistant composite steel pipe has the following defects: the steel pipe is used for a long time, the non-corrosion-resistant steel pipe of the steel pipe is cracked and damaged from the outer surface layer, and the maintenance cost of the steel pipe is increased, so that the invention of the surfacing wear-resistant composite steel pipe is necessary to solve the problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a to prior art's not enough, the utility model provides a wear-resisting compound steel pipe of build-up welding has solved the current wear-resisting compound steel pipe's of build-up welding problem of proposing in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

the utility model provides a build-up welding wear-resisting compound steel pipe, includes steel pipe base member layer, the inboard fixedly connected with high chromium carbide wearing layer on steel pipe base member layer, the surface of high chromium carbide wearing layer is provided with the microcrack that prevents high chromium carbide wearing layer surface, the outside fixedly connected with galvanizing coat on steel pipe base member layer.

Furthermore, the thickness of the steel pipe substrate layer is mm, the thickness of the high-chromium carbide wear-resistant layer is-mm, and the thickness of the zinc coating layer is-mm.

(III) advantageous effects

The utility model provides a wear-resisting compound steel pipe of build-up welding possesses following beneficial effect:

1. this wear-resisting compound steel pipe of build-up welding can improve the wearability on steel pipe matrix layer through high chromium carbide wearing layer to can improve the service life of steel pipe, can prevent through the galvanizing coat that the steel pipe from beginning to break, damage from the extexine, and can reduce the cost of maintenance of steel pipe, can improve the compressive capacity on steel pipe matrix layer through the crazing line on high chromium carbide wearing layer surface.

Drawings

Fig. 1 is a schematic structural diagram of a main view of the surfacing wear-resistant composite steel pipe of the present invention;

fig. 2 is the structural schematic diagram of the section of the wear-resistant composite steel pipe of the surfacing welding of the utility model.

In the figure: 1. a steel pipe substrate layer; 2. a high chromium carbide wear layer; 3. a zinc coating layer; 4. microcracks on the surface of the high-chromium carbide wear-resistant layer.

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.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-2, the present invention provides a technical solution:

the utility model provides a build-up welding wear-resisting compound steel pipe, including steel pipe base member layer 1, steel pipe base member layer 1's inboard fixedly connected with high chromium carbide wearing layer 2, can improve steel pipe base member layer 1's wearability through high chromium carbide wearing layer 2, thereby can improve the life of steel pipe, high chromium carbide wearing layer 2's surface is provided with prevents high chromium carbide wearing layer surface's crazing line 4, can improve steel pipe base member layer 1's compressive capacity through high chromium carbide wearing layer surface's crazing line 4, steel pipe base member layer 1's outside fixedly connected with galvanizing coat 3, steel pipe base member layer 1's thickness is 10mm, high chromium carbide wearing layer 2's thickness is 0.3-2mm, galvanizing coat 3's thickness is 1-5mm, can prevent through galvanizing coat 3 that the steel pipe from beginning to break from the extexine, damage, and can reduce the cost of maintenance of steel pipe.

The theory of operation, this build-up welding wear-resisting composite steel pipe, during the use, can improve the wearability of steel pipe matrix layer 1 through high chromium carbide wearing layer 2 to can improve the service life of steel pipe, can prevent through galvanizing coat 3 that the steel pipe from beginning to break, damage from the extexine, and can reduce the cost of maintenance of steel pipe, can improve the compressive capacity of steel pipe matrix layer 1 through microcrack 4 on high chromium carbide wearing layer surface.

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

1. The utility model provides a build-up welding wear-resisting compound steel pipe, includes steel pipe base member layer (1), its characterized in that: the steel pipe is characterized in that a high-chromium carbide wear-resistant layer (2) is fixedly connected to the inner side of the steel pipe base body layer (1), microcracks (4) for preventing the surface of the high-chromium carbide wear-resistant layer are arranged on the surface of the high-chromium carbide wear-resistant layer (2), and a zinc coating (3) is fixedly connected to the outer side of the steel pipe base body layer (1).

2. The hardfacing wear-resistant composite steel tube of claim 1, wherein:

the thickness of the steel pipe substrate layer (1) is 10mm, the thickness of the high-chromium carbide wear-resistant layer (2) is 0.3-2mm, and the thickness of the zinc coating layer (3) is 1-5 mm.