CN206130336U

CN206130336U - Novel anticorrosive steel pipe

Info

Publication number: CN206130336U
Application number: CN201620990383.6U
Authority: CN
Inventors: 王爽; 陈云; 李娜
Original assignee: Kaifeng City Jinsheng Thermal Co Ltd
Current assignee: Kaifeng City Jinsheng Thermal Co Ltd
Priority date: 2016-08-31
Filing date: 2016-08-31
Publication date: 2017-04-26
Anticipated expiration: 2026-08-31

Abstract

The utility model discloses a novel anticorrosive steel pipe, including steel pipe, epoxy powder coating, interior adhesive layer, outer adhesive layer, polyethylene layer, the steel pipe outer wall be provided with round cylindrical protrusion, steel pipe outer wall spraying epoxy powder coating, the epoxy powder coating outside set up interior adhesive layer, interior adhesive layer outside set up the PVC foaming layer, PVC foaming layer outside set up outer adhesive layer, outer adhesive layer's outside set up the polyethylene layer, generally, the utility model has the advantages of what corrosion -resistant, good, the anticorrosion structure layer of stability and steel pipe combined inseparable, anti mechanical shock can the reinforce.

Description

A kind of novel anticorrosion steel pipe

Technical field

This utility model belongs to anti-corrosive steel pipe technical field, more particularly to a kind of novel anticorrosion steel pipe.

Background technology

3PE anti-corrosive steel tubes three-decker polyethylene anticorrosive coating (3PE) combines External fusion bonded epoxy coating and the poly- second of extruding The advantageous property of two kinds of anticorrosive coats of alkene, by the interfacial characteristics and chemical-resistant characteristic of External fusion bonded epoxy coating, with extruded polyethylene The advantages of mechanical protection properties of anticorrosive coat, combines, so as to play both strong points.Therefore as the outer of buried pipeline Overcoat is very superior.

However, in use it has also been found that tradition 3PE anti-corrosive steel tubes have two large problems：One is gluing oxidant layer and steel pipe With reference to imprecision, external layer preservation structure sheaf is caused to slide；Two is that external layer preservation structure sheaf is relatively thin, it is impossible to bear larger machinery punching Hit, be susceptible to metaboly.

The content of the invention

The purpose of this utility model is to provide a kind of novel anticorrosion steel pipe, and the novel anticorrosion steel pipe is arranged outside steel pipe Projection prevents the external layer preservation structure sheaf changing of the relative positions, and also add PVC foam layer, enhances the energy of the resistance to mechanical impact of steel pipe Power, with high use value.

What the purpose of this utility model was realized in：A kind of novel anticorrosion steel pipe, including steel pipe, FBE, Hose lining adhesive layer, outer gluing oxidant layer, polyethylene layer, described outer wall of steel pipe is provided with cylindrical protrusions, described outer wall of steel pipe Spraying FBE, described FBE outside arranges hose lining adhesive layer, sets outside described hose lining adhesive layer PVC foam layer is put, described PVC foam layer outside arranges outer gluing oxidant layer, and described the outside of outer gluing oxidant layer arranges poly- second Alkene layer.

Described height of projection is 1mm.

Described FBE thickness is 300 μm, and described hose lining adhesive layer and outer adhesive layer thickness is 600 μm, described PVC foam thickness degree is 15mm, and described polyethylene layer thickness is 2mm.

This utility model produce beneficial effect be：A kind of novel anticorrosion steel pipe, arranges raised in the outer wall of inner layer steel pipe, After one layer of FBE of outer wall of steel pipe even application, FBE is also presented convex shape in the high spot of steel pipe, When hose lining adhesive layer and FBE are bonded together, contact area is increased, make what hose lining adhesive layer bondd More firmly, being additionally, since the presence of projection can also prevent the relative slip of hose lining adhesive layer and steel pipe.This utility model exists Polyethylene layer and hose lining adhesive layer increased one layer of PVC foam layer, and when steel pipe is subject to mechanical shock cushioning effect is played, and protect Steel pipe, prevents pipe deformation.

Description of the drawings

Fig. 1 is dimensional structure diagram of the present utility model.

Fig. 2 is cross-sectional structure schematic diagram of the present utility model.

In figure：1st, steel pipe 2, FBE 3, hose lining adhesive layer 4, PVC foam layer 5, outer gluing oxidant layer 6, poly- Pvdf layer 7, projection.

Specific embodiment

Below in conjunction with the accompanying drawings to embodiment further instruction of the present utility model.

Embodiment 1

As shown in accompanying drawing 1-2, a kind of novel anticorrosion steel pipe, including it is steel pipe 1, FBE 2, hose lining adhesive layer 3, outer Gluing oxidant layer 5, polyethylene layer 6, the described outer wall of steel pipe 1 is provided with cylindrical protrusions 7, the described outer wall of steel pipe 1 spraying epoxy Powder coating 2, the described outside of FBE 2 arranges hose lining adhesive layer 3, and the described outside of hose lining adhesive layer 3 arranges PVC Foaming layer 4, the described outside of PVC foam layer 4 arranges outer gluing oxidant layer 5, and described the outside of outer gluing oxidant layer 5 arranges polyethylene Layer 6.

This utility model is when in use：A kind of novel anticorrosion steel pipe, in the manufacturing process of steel pipe, sets in the outer wall of steel pipe Put the projection of cylinder；Then, in one layer of FBE of external spray of steel pipe, epoxy powder is ensured during spraying The consistency of thickness of each position of coating, due to having projection on the outer wall of steel pipe, the FBE after spraying is also convex； Afterwards in the outer surface bonding hose lining adhesive layer of FBE, because hose lining adhesive layer is very soft, applying with epoxy powder After the projection contacts of layer, inner surface will form corresponding depression, increase the contact area with FBE, make hose lining Slip phenomenon is less likely to occur adhesive layer；Then, one layer of PVC foam layer, PVC foam layer tool are set in the outside of hose lining adhesive layer There are many gas cavernous structures, when steel pipe is clashed into, play a part of buffering, the outside of PVC foam layer arranges outer gluing Oxidant layer；Finally, outside the outside of gluing oxidant layer arranges one polyethylene layer, and to the whole external structure of steel pipe the work of protection is played With.

Embodiment 2

The described height of projection 7 is 1mm.

The described thickness of FBE 2 is 300 μm, and described hose lining adhesive layer 3 and the outer thickness of gluing oxidant layer 4 is 600 μm, the described thickness of PVC foam layer 4 is 15mm, and the described thickness of polyethylene layer 6 is 2mm.

This utility model is when in use：A kind of novel anticorrosion steel pipe, in the manufacturing process of steel pipe, sets in the outer wall of steel pipe The projection of cylinder is put, raised height is set to 1mm；Then, in one layer of FBE of external spray of steel pipe, spraying During ensure the consistency of thickness of FBE each position, keep thickness to be 300 μm, due to having on the outer wall of steel pipe Projection, the FBE after spraying is also convex；Afterwards in the outer surface bonding hose lining adhesive layer of FBE, Because hose lining adhesive layer is very soft, after the projection contacts with FBE, inner surface will form corresponding depression, increase The contact area of big and FBE, makes hose lining adhesive layer that slip phenomenon to be less likely to occur；Then, in hose lining adhesive layer The outside PVC foam layer that a layer thickness is set for 15mm, PVC foam layer has many gas cavernous structures, is subjected in steel pipe During shock, play a part of buffering；The outer gluing oxidant layer of outside setting of PVC foam layer is effective in order to ensure inside and outside gluing oxidant layer Ground adhesion strength, by inside and outside gluing oxidant layer 600 μm are both configured to；Finally, outside the outside of gluing oxidant layer arranges one layer of 2mm thickness Polyethylene layer, protection is played a part of to the whole external structure of steel pipe.

Generally, this utility model there is corrosion-resistant, good stability, anti-corrosion structure layers and steel pipe to be tightly combined, resistance to mechanical The strong advantage of the ability of impact.

Claims

1. a kind of novel anticorrosion steel pipe, including steel pipe, FBE, hose lining adhesive layer, outer gluing oxidant layer, polyethylene layer, It is characterized in that：Described outer wall of steel pipe is provided with cylindrical protrusions, and described outer wall of steel pipe spraying FBE is described FBE outside hose lining adhesive layer is set, described hose lining adhesive layer outside arranges PVC foam layer, described PVC Foaming layer outside arranges outer gluing oxidant layer, and described the outside of outer gluing oxidant layer arranges polyethylene layer.

2. a kind of novel anticorrosion steel pipe according to claim 1, it is characterised in that：Described height of projection is 1mm.

3. a kind of novel anticorrosion steel pipe according to claim 1, it is characterised in that：Described FBE thickness is 300 μm, described hose lining adhesive layer and outer adhesive layer thickness is 600 μm, and described PVC foam thickness degree is 15mm, institute The polyethylene layer thickness stated is 2mm.