CN215721358U

CN215721358U - Seamless steel pipe with good bending resistance effect and anti-oxidation function

Info

Publication number: CN215721358U
Application number: CN202121990756.7U
Authority: CN
Inventors: 李辉
Original assignee: Dexin Steel Tube China Co ltd
Current assignee: Dexin Steel Tube China Co ltd
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2022-02-01
Anticipated expiration: 2031-08-24

Abstract

The utility model discloses a seamless steel tube with good bending resistance and an anti-oxidation function, which comprises a seamless steel tube body, wherein the seamless steel tube body comprises a first substrate layer, a second substrate layer, an inner surface protection layer and an outer surface protection layer, the outer wall of the second substrate layer is fixedly connected with the outer surface protection layer, the inner wall of the second substrate layer is fixedly connected with the first substrate layer, and the inner wall of the first substrate layer is fixedly connected with the inner surface protection layer. The anti-corrosion device has the advantages that the first substrate layer is arranged, the effects of convenience in processing and reduction in production cost can be achieved, the use strength and the bending resistance of the device are improved by the second substrate layer, the hardness of the surface of the device can be improved by the reinforcing layer, the surface of the device is prevented from being damaged due to collision, the anti-corrosion layer is arranged, the anti-corrosion effect on the surface of the device can be achieved, and the weather resistance of the surface of the device is effectively improved.

Description

Seamless steel pipe with good bending resistance effect and anti-oxidation function

Technical Field

The utility model relates to the technical field of steel pipes, in particular to a seamless steel pipe with good bending resistance and oxidation resistance.

Background

The seamless steel pipe is a steel pipe which is punched by a whole round steel, has no welding seam on the surface, is called as a seamless steel pipe, can be divided into a hot-rolled seamless steel pipe, a cold-drawn seamless steel pipe, an extruded seamless steel pipe, a top pipe and the like according to the production method, is divided into a round seamless steel pipe and a special seamless steel pipe according to the section shape, has various complex shapes of square, ellipse, triangle, hexagon, melon seed shape, star shape and finned pipe, has the maximum diameter of 900mm and the minimum diameter of 4mm, has thick-wall seamless steel pipes and thin-wall seamless steel pipes according to different purposes, is mainly used as petroleum drilling pipes, geological cracking pipes, boiler pipes, bearing pipes and high-precision structural steel pipes for automobiles, tractors and aviation, has lower strength and is easy to bend and deform in the use process, and the oxidation resistance is poor, the corrosion is easy to occur, and the service life is short.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a seamless steel pipe with good bending resistance effect and anti-oxidation function, which has the advantages of bending resistance, high strength, good heat insulation effect and long service life, and solves the problems of low general strength, easy bending deformation in the use process, poor oxidation resistance, easy corrosion and short service life of the conventional seamless steel.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an effectual seamless steel pipe that just possesses anti-oxidant function of buckling, includes the seamless steel pipe body, the seamless steel pipe body includes first substrate layer, second substrate layer, internal surface inoxidizing coating and surface inoxidizing coating, the outer wall fixedly connected with surface inoxidizing coating of second substrate layer, the first substrate layer of inner wall fixedly connected with of second substrate layer, the internal surface inoxidizing coating of inner wall fixedly connected with of first substrate layer, the internal surface inoxidizing coating includes antioxidation layer and strengthening layer, the inboard fixedly connected with antioxidation layer of strengthening layer, the surface inoxidizing coating includes insulating layer, enhancement layer and ageing resistance layer.

Preferably, the outer side of the heat insulation layer is fixedly connected with a reinforcing layer, and the outer side of the reinforcing layer is fixedly connected with an anti-aging layer.

Preferably, the thickness of the heat insulation layer is greater than that of the reinforcing layer, and the thickness of the heat insulation layer is 2 mm.

Preferably, the thickness of the anti-oxidation layer is smaller than that of the strengthening layer, and the thickness of the strengthening layer is 0.45 mm.

Preferably, both sides of the seamless steel tube body are provided with connecting flanges, and mounting holes are formed in the surfaces of the connecting flanges.

Preferably, the inner cavity of the connecting flange is fixedly connected with a sealing ring, and the surface of the sealing ring is fixedly connected with an anti-aging coating.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the first substrate layer is arranged, so that the effects of convenience in processing and reduction in production cost can be achieved, the use strength and the bending resistance of the device are increased by arranging the second substrate layer, the hardness of the surface of the device can be increased by arranging the reinforcing layer, the surface of the device is prevented from being damaged due to collision, the anti-aging layer is arranged, the anti-oxidation and anti-corrosion effects can be achieved on the surface of the device, the weather resistance of the surface of the device is effectively improved, the anti-oxidation and anti-corrosion effects can be achieved on the inner wall of the device by arranging the anti-oxidation layer, and the service life of the device is effectively prolonged.

2. The heat-insulating device has the advantages that the heat-insulating layer is arranged, the heat-insulating effect can be achieved, the phenomenon that the temperature of the external environment changes rapidly is avoided, the mechanical performance of the device is reduced due to long-term expansion with heat and contraction with cold, the compressive strength of the inner wall of the device can be increased by arranging the strengthening layer, the influence on the device due to large pressure intensity in the pipe is avoided, the device can be conveniently assembled and fixed by arranging the connecting flange and the mounting hole, the use convenience of the device is effectively improved, the sealing performance of the connecting part of the device can be increased by arranging the sealing ring, and the phenomenon of liquid leakage in the use process is avoided.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a sectional view of the seamless steel pipe body according to the present invention;

FIG. 3 is a partial cross-sectional view of an outer surface protective layer according to the present invention;

fig. 4 is a partial cross-sectional view of an inner surface protective layer in accordance with the present invention.

In the figure: 1. a seamless steel tube body; 2. a connecting flange; 3. a first base material layer; 4. a second substrate layer; 5. an inner surface protective layer; 6. an outer surface protective layer; 7. a thermal insulation layer; 8. a reinforcing layer; 9. an anti-aging layer; 10. an anti-oxidation layer; 11. a strengthening layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The seamless steel pipe body 1, the connecting flange 2, the first substrate layer 3, the second substrate layer 4, the inner surface protective layer 5, the outer surface protective layer 6, the heat insulation layer 7, the reinforcing layer 8, the anti-aging layer 9, the anti-oxidation layer 10 and the reinforcing layer 11 are all universal standard parts or parts known by a person skilled in the art, and the structure and the principle of the seamless steel pipe are known by the person skilled in the art through technical manuals or conventional experimental methods.

Referring to fig. 1-4, a seamless steel pipe with good bending resistance and anti-oxidation function comprises a seamless steel pipe body 1, the seamless steel pipe body 1 comprises a first substrate layer 3, a second substrate layer 4, an inner surface protection layer 5 and an outer surface protection layer 6, the outer wall of the second substrate layer 4 is fixedly connected with the outer surface protection layer 6, the inner wall of the second substrate layer 4 is fixedly connected with the first substrate layer 3, the inner wall of the first substrate layer 3 is fixedly connected with the inner surface protection layer 5, the inner surface protection layer 5 comprises an anti-oxidation layer 10 and a strengthening layer 11, the inner side of the strengthening layer 11 is fixedly connected with the anti-oxidation layer 10, the outer surface protection layer 6 comprises a heat insulation layer 7, a strengthening layer 8 and an anti-aging layer 9, the outer side of the heat insulation layer 7 is fixedly connected with the strengthening layer 8, the outer side of the strengthening layer 8 is fixedly connected with the anti-aging layer 9, and the thickness of the heat insulation layer 7 is greater than that of the strengthening layer 8, the thickness of the heat insulation layer 7 is 2mm, the heat insulation layer 7 can play a role in heat preservation and heat insulation, the change of the external environment temperature is avoided to be fast, the long-term thermal expansion and cold contraction reduce the mechanical performance of the device, the thickness of the oxidation resistant layer 10 is smaller than that of the strengthening layer 11, the thickness of the strengthening layer 11 is 0.45mm, the compressive strength of the inner wall of the device can be increased by arranging the strengthening layer 11, the influence on the device caused by the large pressure intensity in the pipe is avoided, the connecting flanges 2 are arranged on the two sides of the seamless steel pipe body 1, the mounting holes are formed in the surfaces of the connecting flanges 2, the device can be conveniently assembled and fixed by arranging the connecting flanges 2 and the mounting holes, the use convenience of the device is effectively improved, the sealing rings are fixedly connected to the inner cavities of the connecting flanges 2, the anti-aging coatings are fixedly connected to the surfaces of the sealing rings, and the sealing rings are arranged to increase the sealing performance of the joints of the device, avoid the phenomenon of weeping to appear in the use, through setting up first substrate layer 3, can play the processing of being convenient for, reduction in production cost's effect, through setting up second substrate layer 4, the service strength and the anti ability of buckling of device have been increased, through setting up enhancement layer 8, can increase the hardness on device surface, avoid the device surface to receive to collide with and cause the damage, through setting up ageing resistant layer 9, can play anti-oxidant anticorrosive effect to the surface of device, the weather resistance on device surface has effectively been promoted, through setting up oxidation resistant layer 10, can play anti-oxidant anticorrosive effect to the inner wall of device, the life of device has effectively been promoted.

When the anti-aging device is used, the first substrate layer 3 is made of carbon structural steel, the first substrate layer 3 is arranged, the device can be conveniently processed and the production cost is reduced, the second substrate layer 4 is made of alloy structural steel, the using strength and the bending resistance of the device are improved by arranging the second substrate layer 4, the heat insulation layer 7 is made of foam metal, the heat insulation layer 7 is arranged, the heat insulation effect is achieved, the rapid change of the external environment temperature is avoided, the mechanical performance of the device is reduced due to long-term expansion caused by heat and contraction caused by cold, the reinforcing layer 8 is made of graphene, the hardness of the surface of the device can be improved by arranging the reinforcing layer 8, the surface of the device is prevented from being damaged due to collision, the anti-aging layer 9 is made of anti-oxidation polyurethane finish paint, and the anti-oxidation and corrosion effects can be achieved on the surface of the device by arranging the anti-aging layer 9, effectively promoted the weatherability on device surface, antioxidation layer 10's use material is corrosion-resistant epoxy asphalt coating, can play the anticorrosive effect of anti-oxidant to the inner wall of device, effectively promoted the life of device, strengthening layer 11's use material is the carbon fiber, through setting up strengthening layer 11, can increase the compressive strength of device inner wall, avoid the intraductal pressure great to cause the influence to the device, cooperation through above-mentioned structure, can make the device reach anti buckling, high strength, thermal-insulated effectual, long service life's advantage, and is suitable for being generalized to use.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an anti effectual and possess anti-oxidant function's seamless steel pipe of buckling, includes seamless steel pipe body (1), its characterized in that: seamless steel pipe body (1) includes first substrate layer (3), second substrate layer (4), internal surface inoxidizing coating (5) and surface inoxidizing coating (6), the outer wall fixedly connected with surface inoxidizing coating (6) of second substrate layer (4), the first substrate layer (3) of inner wall fixedly connected with of second substrate layer (4), the internal surface inoxidizing coating (5) of inner wall fixedly connected with of first substrate layer (3), internal surface inoxidizing coating (5) include antioxidation layer (10) and strengthening layer (11), inboard fixedly connected with antioxidation layer (10) of strengthening layer (11), surface inoxidizing coating (6) include insulating layer (7), enhancement layer (8) and ageing resistance layer (9).

2. The seamless steel tube with good bending resistance and oxidation resistance as claimed in claim 1, characterized in that: the outside fixedly connected with enhancement layer (8) of insulating layer (7), the outside fixedly connected with anti-aging layer (9) of enhancement layer (8).

3. The seamless steel tube with good bending resistance and oxidation resistance as claimed in claim 1, characterized in that: the thickness of insulating layer (7) is greater than the thickness of enhancement layer (8), the thickness of insulating layer (7) is 2 mm.

4. The seamless steel tube with good bending resistance and oxidation resistance as claimed in claim 1, characterized in that: the thickness of the anti-oxidation layer (10) is smaller than that of the strengthening layer (11), and the thickness of the strengthening layer (11) is 0.45 mm.

5. The seamless steel tube with good bending resistance and oxidation resistance as claimed in claim 1, characterized in that: the seamless steel pipe is characterized in that connecting flanges (2) are arranged on two sides of the seamless steel pipe body (1), and mounting holes are formed in the surfaces of the connecting flanges (2).

6. The seamless steel tube with good bending resistance and oxidation resistance as claimed in claim 5, characterized in that: the inner cavity of the connecting flange (2) is fixedly connected with a sealing ring, and the surface of the sealing ring is fixedly connected with an anti-aging coating.