High-strength P-type special-shaped steel pipe

Abstract

The utility model discloses a high-strength P-type special-shaped steel pipe which comprises a P-type steel pipe body, inclined supporting plates are fixed to the inner corners of the P-type steel pipe body respectively, reinforcing plates are fixed between the adjacent inclined supporting plates on the inner wall of the P-type steel pipe body, and an inner anti-rust protection layer is arranged on the inner wall of the P-type steel pipe body. A reinforcing steel layer is arranged on the outer surface of the P-type steel pipe body, and the outer surface of the reinforcing steel layer is covered with a protective layer. According to the high-strength P-type special-shaped steel pipe, the reinforcing steel layers and the high-carbon steel reinforcing ribs are arranged to disperse pressure borne by the steel pipe, the overall supporting strength of the P-type steel pipe can be improved, the five inner corners of the P-type steel pipe are supported through the inclined supporting plates and the connecting plates, the deformation resistance is improved through the reinforcing plates, and the service life of the steel pipe is prolonged. The P-type steel pipe has the effects of being good in stability, safe, firm and durable, the inner anti-rust protection layer and the protection layer are arranged for anti-rust protection, the abrasion resistance of the P-type special-shaped steel pipe is improved, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipes, in particular to a high-strength P-shaped special-shaped steel pipe. Background Art

[0002] P-type steel pipe is a kind of special-shaped pipe. Special-shaped pipes include those with non-circular cross-sectional profiles, equal wall thickness, variable wall thickness, variable diameter and variable wall thickness along the length, symmetrical and asymmetrical cross-sections, such as square, rectangular, conical, trapezoidal, spiral, etc. Compared with circular pipes, P-type pipes are more adaptable to the particularity of use conditions, can save metal and improve the labor productivity of parts manufacturing, and are widely used in aviation, automobiles, shipbuilding, mining machinery, agricultural machinery, construction, light textiles, and boiler manufacturing.

[0003] The inventor discovered during the process of implementing the utility model:

[0004] Since the P-shaped steel pipe has a cavity inside, the internal structural strength of the P-shaped steel pipe is low, resulting in poor compression resistance and bending resistance during use, and it is easily affected by external factors. The P-shaped steel pipe is prone to rust in humid weather, which affects the service life of the P-shaped steel pipe. Summary of the invention

[0005] In order to solve the problems existing in the prior art, the utility model proposes a high-strength P-shaped special-shaped steel pipe.

[0006] To this end, the technical solution of the utility model is: a high-strength P-shaped special-shaped steel pipe, including a P-shaped steel pipe body, characterized in that: diagonal support plates are respectively fixed at the inner corners of the P-shaped steel pipe body, reinforcing plates are fixed between adjacent diagonal support plates on the inner wall of the P-shaped steel pipe body, an internal anti-rust protective layer is arranged on the inner wall of the P-shaped steel pipe body, a reinforced steel layer is arranged on the outer surface of the P-shaped steel pipe body, and the outer surface of the reinforced steel layer is covered with a protective layer.

[0007] Preferably, a connecting plate in the vertical direction is fixed between each of the diagonal support plates and the corresponding inner corner of the P-type steel pipe body, and the supporting firmness of the inner corner of the P-type steel pipe body can be improved by the diagonal support plates and the connecting plates.

[0008] Preferably, the material of the internal anti-rust protective layer is set to be a nickel-based alloy, which is a type of alloy with comprehensive properties such as high strength and certain resistance to oxidation and corrosion, and can provide anti-rust protection for the inner wall of the P-type steel pipe body.

[0009] Preferably, the interior of the reinforced steel layer is provided with high-carbon steel reinforcement ribs distributed at equal distances. High-carbon steel has the characteristics of high hardness and high strength, so that the reinforced steel layer can disperse the pressure exerted on the steel pipe and the reinforced steel layer can enhance the overall supporting strength of the steel pipe.

[0010] Preferably, the protective layer includes an anti-rust coating, which is made of epoxy resin paint. By applying the anti-rust coating on the surface of the protective layer, the surface of the steel pipe is isolated from the air, avoiding direct contact and rust between the air and the surface of the steel pipe, thereby improving the anti-rust performance of the steel pipe.

[0011] Preferably, the outer surface of the anti-rust coating is provided with a wear-resistant coating, and the wear-resistant coating is a magnesium alloy coating. The magnesium alloy coating has good self-healing and corrosion resistance and can improve the wear resistance of the steel pipe surface.

[0012] Beneficial effect: The utility model can disperse the pressure on the steel pipe by setting structures such as reinforcing plates and reinforced steel layers, and can improve the overall support strength of the P-type steel pipe by setting the reinforced steel layer and high-carbon steel reinforcing ribs. The five inner corners of the P-type steel pipe can be supported by setting the diagonal support plate and the connecting plate, thereby improving the support firmness of the inner corners of the P-type steel pipe. The cross-sectional area of ​​the wall of the P-type steel pipe can be increased by setting the reinforcing plate, thereby improving the deformation resistance of the P-type pipe, so that the P-type steel pipe can bear the load during use. It can withstand greater collision force and is not easy to deform and bend, and has high resistance to torsion and bending, so that the P-type steel pipe has good stability, safety, firmness and durability; by setting an internal anti-rust protective layer, the inner wall of the P-type steel pipe can be prevented from directly contacting the air, and by setting an anti-rust coating, the outer surface of the P-type steel pipe can be prevented from directly contacting the air, thereby protecting the P-type steel pipe, thereby solving the problem that the P-type steel pipe is prone to rust in humid weather, and by setting a wear-resistant coating, the wear resistance of the surface of the P-type steel pipe can be improved, thereby extending the service life of the P-type steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model.

[0014] Figure 2 It is a front view structural diagram of the utility model.

[0015] Figure 3 It is a layer diagram of the protective layer of the utility model.

[0016] As shown in the figure: 1. P-type steel pipe body; 2. Diagonal support plate 1; 3. Diagonal support plate 2; 4. Reinforcement plate; 5. Internal anti-rust protective layer; 6. Reinforced steel layer; 7. High carbon steel reinforcement ribs; 8. Connecting plate 1; 9. Connecting plate 2; 10. Protective layer; 101. Anti-rust coating; 102. Wear-resistant coating. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings, but this embodiment should not be understood as a limitation to the present invention.

[0018] The utility model Figures 1 to 3 As shown:

[0019] A high-strength P-shaped special-shaped steel pipe comprises a P-shaped steel pipe body 1, wherein three inner corners of the inner wall of the P-shaped steel pipe body 1 are respectively fixed with diagonal bracing plates 2, and the other two inner corners of the inner wall of the P-shaped steel pipe body 1 are respectively fixed with diagonal bracing plates 3, and each diagonal bracing plate 2 is fixed with a connecting plate 8 in the vertical direction, and each connecting plate 8 is fixed to the inner corner corresponding to the P-shaped steel pipe body 1, and each diagonal bracing plate 2 is fixed with a connecting plate 9 in the vertical direction, and each connecting plate 29 is fixed to the inner corner corresponding to the P-shaped steel pipe body 1, and the supporting firmness of the inner corner at the P-shaped head can be improved by the diagonal bracing plates 3 and the connecting plates 9, and the supporting firmness of the other three inner corners of the P-shaped steel pipe body 1 can be improved by the diagonal bracing plates 2 and the connecting plates 8, thereby realizing the improvement of the supporting force of the five inner corners of the P-shaped pipe.

[0020] A reinforcing plate 4 is fixed along the inner wall of the P-type steel pipe body 1. The reinforcing plate 4 is composed of five strip steel plates, all of which are fixed at the center position of the inner wall of the steel pipe. The volume of the strip steel plate fixed at the inner wall of the P-type head is slightly smaller. By setting the reinforcing plate 4, the cross-sectional area of ​​the P-type steel pipe wall can be increased, thereby improving the deformation resistance of the P-type pipe.

[0021] The outer surface of the P-type steel pipe body 1 is provided with a reinforcing steel layer 6, and the outer surface of the reinforcing steel layer 6 is covered with a protective layer 10. By providing the protective layer 10, the rust resistance and wear resistance of the surface of the P-type steel pipe are improved, thereby extending the service life of the P-type steel pipe.

[0022] like Figure 2 As shown, the inner wall of the P-type steel pipe body 1 is provided with an internal anti-rust protective layer 5, and the material of the internal anti-rust protective layer 5 is set to a nickel-based alloy. The nickel-based alloy is a type of alloy with comprehensive properties such as high strength and certain anti-oxidation and corrosion ability, and can provide rust protection for the inner wall of the P-type steel pipe body 1.

[0023] like Figure 2 As shown, the interior of the reinforced steel layer 6 is provided with high-carbon steel reinforcement ribs 7 which are distributed at equal distances. The high-carbon steel has the characteristics of high hardness and high strength, so that the reinforced steel layer 6 can disperse the pressure exerted on the P-type steel pipe during use, and the reinforced steel layer 6 can enhance the overall supporting strength of the P-type steel pipe.

[0024] like Figure 2 and Figure 3As shown, the protective layer 10 includes an anti-rust coating 101, which is made of epoxy resin paint. By applying the anti-rust coating 101 on the surface of the protective layer 10, the surface of the P-type steel pipe is isolated from the air, avoiding direct contact and rust between the air and the surface of the steel pipe, thereby improving the anti-rust performance of the steel pipe.

[0025] like Figure 2 and Figure 3 As shown, the outer surface of the anti-rust coating 101 is provided with a wear-resistant coating 102, and the wear-resistant coating 102 is a magnesium alloy coating. The magnesium alloy coating has good self-healing and corrosion resistance, and can improve the wear resistance of the surface of the P-type steel pipe.

[0026] The working principle of this utility model:

[0027] When in use, the pressure on the steel pipe can be dispersed by setting the reinforcing steel layer 6 and the high-carbon steel reinforcing ribs 7, and the reinforcing steel layer 6 and the high-carbon steel reinforcing ribs 7 can improve the overall support strength of the P-type steel pipe, and the five inner corners of the P-type steel pipe can be supported by setting the diagonal support plate 2, the connecting plate 1 8, the diagonal support plate 2 3, and the connecting plate 2 9, thereby improving the support firmness of the inner corners of the P-type steel pipe, and the cross-sectional area of ​​the P-type steel pipe wall can be increased by setting the reinforcing plate 4, thereby improving the deformation resistance of the P-type pipe, so that the P-type steel pipe can withstand a larger collision force during use. It is not easy to deform or bend, and has high resistance to torsion and bending, so that the P-type steel pipe has good stability, safety, firmness and durability. By setting the internal anti-rust protective layer 5, the inner wall of the P-type steel pipe can be prevented from directly contacting the air. By setting the anti-rust coating 101, the outer surface of the P-type steel pipe can be prevented from directly contacting the air, thereby protecting the P-type steel pipe and preventing it from rusting. By setting the wear-resistant coating 102, the wear resistance of the surface of the P-type steel pipe can be improved, thereby solving the problem that the P-type steel pipe is prone to rusting in humid weather and extending the service life of the P-type steel pipe.

[0028] Parts not described in detail in this specification are well-known technologies in the art.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-strength P-shaped special-shaped steel pipe, comprising a P-shaped steel pipe body, characterized in that: Diagonal bracing plates are fixed at the inner corners of the P-type steel pipe body, and reinforcing plates are fixed between adjacent diagonal bracing plates on the inner wall of the P-type steel pipe body. An internal anti-rust protective layer is arranged on the inner wall of the P-type steel pipe body, and a reinforced steel layer is arranged on the outer surface of the P-type steel pipe body, and the outer surface of the reinforced steel layer is covered with a protective layer.

2. According to claim 1, a high-strength P-shaped special-shaped steel pipe is characterized in that: A connecting plate in a vertical direction is fixed between each of the diagonal bracing plates and the inner corner of the corresponding P-shaped steel pipe body.

3. A high-strength P-shaped special-shaped steel pipe according to claim 1 or 2, characterized in that: The material of the internal anti-rust protective layer is set to be a nickel-based alloy.

4. According to claim 3, a high-strength P-shaped special-shaped steel pipe is characterized in that: The interior of the reinforced steel layer is provided with high-carbon steel reinforcing ribs distributed at equal distances.

5. A high-strength P-shaped special-shaped steel pipe according to claim 1, 2 or 4, characterized in that: The protective layer is an anti-rust coating, and the anti-rust coating is made of epoxy resin paint.

6. A high-strength P-shaped special-shaped steel pipe according to claim 5, characterized in that: The outer surface of the anti-rust coating is provided with a wear-resistant coating, and the wear-resistant coating is a magnesium alloy coating.

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