CN217272845U - Steel-plastic conversion pipe fitting with anti-ultraviolet three-layer sintered powder epoxy anti-corrosion outer coating - Google Patents
Steel-plastic conversion pipe fitting with anti-ultraviolet three-layer sintered powder epoxy anti-corrosion outer coating Download PDFInfo
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- CN217272845U CN217272845U CN202220526588.4U CN202220526588U CN217272845U CN 217272845 U CN217272845 U CN 217272845U CN 202220526588 U CN202220526588 U CN 202220526588U CN 217272845 U CN217272845 U CN 217272845U
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Abstract
The utility model discloses a conversion pipe fitting is moulded to anticorrosive outer coating steel of anti ultraviolet three-layer sintering powder epoxy relates to city gas pipe network steel and moulds conversion pipe fitting technical field, and this conversion pipe fitting is moulded to anticorrosive outer coating steel of anti ultraviolet three-layer sintering powder epoxy, including steel pipe spare, the lower extreme on steel pipe spare surface has cup jointed the PE pipe fitting, and steel pipe spare includes anticorrosive outer layer and steel pipe body, and anticorrosive outer surface sintering at the steel pipe body, and anticorrosive outer includes polyester powder layer, graft copolymer powder layer and epoxy powder layer, and the polyester powder layer is at the surface sintering of graft copolymer powder layer. According to the steel-plastic conversion pipe fitting with the ultraviolet-resistant three-layer sintered powder epoxy anticorrosive outer coating, the polyester powder layer, the graft copolymer powder layer and the epoxy powder layer are complemented in performance, so that the steel pipe body anticorrosive coating has high strength, good toughness and strong ultraviolet radiation resistance and weather resistance, and the steel pipe fitting can maintain stable anticorrosive performance for a long time even in acid, alkali and salt soil.
Description
Technical Field
The utility model relates to a city gas pipe net steel is moulded and is converted pipe fitting technical field, in particular to anti ultraviolet three-layer sintering powder epoxy anticorrosion outer coating steel is moulded and is converted pipe fitting.
Background
The buried PE pipe network for conveying natural gas and gas fluid usually needs a steel-plastic conversion pipe fitting to be connected with a ground steel pipe so as to be conveyed to a terminal, one end of the steel-plastic conversion pipe fitting is made of a steel material, and the steel-plastic conversion pipe fitting is in a long-term buried state in application, so that strict anticorrosion treatment must be carried out on the steel pipe, otherwise, natural gas conveying or fluid leakage accidents can be caused due to corrosion damage of the steel pipe.
At present, the corrosion prevention modes of some pipe fittings have high cost and low efficiency, the quality is unstable due to process defects, the material strength of a corrosion prevention layer is low and is easy to damage, the pipe fittings are aged due to ultraviolet radiation in long-term daily life, the long-term corrosion prevention effect cannot be achieved, and the corrosion prevention treatment needs to be carried out repeatedly at regular intervals, so the corrosion prevention cost is very high, and the operation efficiency of a pipe network is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve one of the technical problem that exists among the prior art at least, provide anti ultraviolet three-layer sintering powder epoxy anticorrosion outer coating steel and plastic conversion pipe fitting, can solve the low easy damage that receives of anticorrosive layer material intensity, long-term day meeting takes place to age because of ultraviolet radiation, does not reach the problem of long-term anticorrosive effect.
In order to achieve the above purpose, the utility model provides a following technical scheme: the steel-plastic conversion pipe fitting comprises a steel pipe fitting, the lower end of the surface of the steel pipe fitting is sleeved with a PE pipe fitting, the steel pipe fitting comprises an anti-corrosion outer layer and a steel pipe body, the anti-corrosion outer layer is sintered on the outer surface of the pipe body, the outer layer comprises a polyester powder layer, a graft copolymer powder layer and an epoxy powder layer, the polyester powder layer is sintered on the outer surface of the graft copolymer powder layer, the graft copolymer powder layer is sintered on the outer surface of the epoxy powder layer, and the epoxy powder layer is sintered on the surface of the steel pipe.
Preferably, the steel pipe body and the PE pipe fitting sleeve joint end are provided with a sealing ring.
Preferably, the interior of the PE pipe fitting is provided with a steel locking sleeve.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the steel-plastic conversion pipe fitting with the anti-ultraviolet three-layer sintered powder epoxy anti-corrosion outer coating has the advantages that the pipe body anti-corrosion layer has high strength, good toughness and strong ultraviolet radiation resistance and weather resistance through the performance complementation of the polyester powder layer, the graft copolymer powder layer and the epoxy powder layer, so that the steel pipe fitting can keep stable anti-corrosion performance for a long time even in acid, alkali and salt soil, is suitable for the operation environment of various weather conditions of the steel-plastic conversion pipe fitting, can meet the long-term operation requirement without repeated anti-corrosion treatment, and can be used as a more convenient using device for workers.
(2) This conversion pipe fitting is moulded to anticorrosive outer coating steel of anti ultraviolet three-layer sintering powder epoxy, it is trapezoidal through the sealing ring cross section, the external diameter is greater than the PE pipe fitting internal diameter, form interference fit with the PE pipe fitting, trapezoidal prong is favorable to following the interlock of PE pipe fitting inner wall, improve bonding strength, the interlock that makes the PE pipe fitting increases, joint strength improves, make the seal performance between steel body and the PE pipe fitting obtain certain reinforcing simultaneously, the anti radial shear force that makes the PE pipe fitting through the steel lock sleeve simultaneously obtains certain promotion, make the life of PE pipe fitting obtain certain promotion.
Drawings
The invention will be further described with reference to the following figures and examples:
fig. 1 is a schematic structural view of the steel-plastic conversion pipe fitting of the present invention;
FIG. 2 is a schematic view of the pipe fitting of the present invention;
FIG. 3 is a plan view of the present invention;
FIG. 4 is a schematic view of the outer layer of the present invention;
FIG. 5 is a schematic cross-sectional view of the PE pipe of the present invention;
fig. 6 is a schematic view of the front view of the PE pipe of the present invention.
Reference numerals: 1. steel pipe fittings; 2. PE pipe fittings; 3. an outer corrosion-resistant layer; 301. a polyester powder layer; 302. a graft copolymer powder layer; 303. an epoxy powder layer; 4. a steel locking sleeve; 5. a pipe body; 6. and (4) a sealing ring.
Detailed Description
Referring to fig. 1-3, the present invention provides a technical solution: conversion pipe fitting is moulded to anticorrosive outer coating steel of anti ultraviolet three-layer sintering powder epoxy, including steel pipe fitting 1, steel pipe fitting 1 can also be the return bend for the straight tube, and the lower extreme on 1 surface of steel pipe fitting has cup jointed PE pipe fitting 2, and PE pipe fitting 2 connects and buries ground PE pipe network, and steel pipe fitting 1 includes anticorrosive outer 3 and steel pipe body 5, and steel pipe body 5 links to each other with the steel pipe, and anticorrosive outer 3 is at the surface sintering of body 5.
Referring to fig. 3-5, the outer anticorrosion layer 3 includes a polyester powder layer 301, a graft copolymer powder layer 302 and an epoxy powder layer 303, the polyester powder layer 301 is sintered on the outer surface of the graft copolymer powder layer 302, the graft copolymer powder layer 302 is sintered on the outer surface of the epoxy powder layer 303, the epoxy powder layer 303 is sintered on the outer surface of the steel pipe body, the polyester powder layer 301, the graft copolymer powder layer 302 and the epoxy powder layer 303 are sintered and coated on the outer circular surface of the steel pipe at high temperature, the three-layer structure is tightly sintered without gaps, and the anticorrosion layer of the steel pipe body 5 has high strength, good toughness and strong ultraviolet radiation and weather resistance through the performance complementation, so that the steel pipe can maintain stable anticorrosion performance for a long time even in acid, alkali and salt soils, is suitable for operating environments of various weather conditions of the steel-plastic conversion pipe fitting, and can meet long-term operation requirements without repeated anticorrosion treatment, the device can be used more conveniently by workers.
Please refer to fig. 5-6, further, one end of the steel tube body 5 is provided with a sealing ring 6, the cross section of the sealing ring 6 is trapezoidal, the outer diameter is larger than the inner diameter of the PE tube 2, and forms an interference fit with the PE tube 2, the trapezoidal tooth tip is beneficial to engaging with the inner wall of the PE tube 2, so as to improve the bonding strength, increase the engagement of the PE tube 2, improve the connection strength, and at the same time, enhance the sealing performance between the steel tube body 5 and the PE tube 2 to a certain extent, the inside of the PE tube 2 is provided with a steel locking sleeve 4, the radial shearing resistance of the PE tube 2 is improved to a certain extent by the steel locking sleeve 4, so as to improve the connection strength, avoid the creep deformation of the PE material, maintain stable and reliable connection, and prolong the service life of the PE tube 2 to a certain extent.
The working principle is as follows: this anti ultraviolet three-layer sintering powder epoxy anticorrosion outer coating steel-plastic conversion pipe fitting, pass through polyester powder layer 301 when using, graft copolymer powder layer 302 makes the 5 anticorrosive coating of steel pipe body have intensity height with the performance complementation of epoxy powder layer 303, good toughness, ultraviolet radiation resistance weatherability is strong, make the pipeline even if in acid, alkali, also can long-term stable corrosion resisting property in the salt soil, through sealing ring 6, make the interlock of PE pipe fitting 2 increase, joint strength improves, make the seal performance between body 5 and the PE pipe fitting 2 obtain certain reinforcing simultaneously, make the anti radial shear force of PE pipe fitting 2 obtain certain promotion through steel lock sleeve 4, make the life of PE pipe fitting 2 obtain certain promotion.
Claims (4)
1. Conversion pipe fitting is moulded to anticorrosive outer coating steel of anti ultraviolet three-layer sintering powder epoxy, including steel pipe fitting (1), its characterized in that: the lower extreme on steel pipe fitting (1) surface has cup jointed PE pipe fitting (2), and steel pipe fitting (1) is including anticorrosive outer layer (3) and steel body (5), and anticorrosive outer layer (3) is in the surface sintering with steel body (5), and anticorrosive outer layer (3) include polyester powder layer (301), graft copolymer powder layer (302) and epoxy powder layer (303).
2. The steel-plastic conversion pipe fitting with the ultraviolet-resistant three-layer sintered powder epoxy anticorrosive outer coating according to claim 1, characterized in that: the polyester powder layer (301) is sintered on the outer surface of the graft copolymer powder layer (302), the graft copolymer powder layer (302) is sintered on the outer surface of the epoxy powder layer (303), and the epoxy powder layer (303) is sintered on the surface of the steel pipe body (5).
3. The ultraviolet-resistant three-layer sintered powder epoxy anticorrosion outer coating steel-plastic conversion pipe fitting as claimed in claim 2, characterized in that: one end of the steel pipe body (5) is provided with a sealing ring (6).
4. The steel-plastic conversion pipe fitting with the ultraviolet-resistant three-layer sintered powder epoxy anticorrosive outer coating according to claim 3, characterized in that: the interior of the PE pipe fitting (2) is provided with a steel locking sleeve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220526588.4U CN217272845U (en) | 2022-03-11 | 2022-03-11 | Steel-plastic conversion pipe fitting with anti-ultraviolet three-layer sintered powder epoxy anti-corrosion outer coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220526588.4U CN217272845U (en) | 2022-03-11 | 2022-03-11 | Steel-plastic conversion pipe fitting with anti-ultraviolet three-layer sintered powder epoxy anti-corrosion outer coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217272845U true CN217272845U (en) | 2022-08-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220526588.4U Active CN217272845U (en) | 2022-03-11 | 2022-03-11 | Steel-plastic conversion pipe fitting with anti-ultraviolet three-layer sintered powder epoxy anti-corrosion outer coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217272845U (en) |
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2022
- 2022-03-11 CN CN202220526588.4U patent/CN217272845U/en active Active
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