CN202992422U

CN202992422U - Multi-layer dual-resistance steel-plastic pipe

Info

Publication number: CN202992422U
Application number: CN 201220708795
Authority: CN
Inventors: 王宗岭
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-12-13
Filing date: 2012-12-13
Publication date: 2013-06-12
Anticipated expiration: 2022-12-13

Abstract

The utility model relates to steel-plastic pipes, in particular to a multi-layer dual-resistance steel-plastic pipe. The multi-layer dual-resistance steel-plastic pipe comprises a pipe body, an inner anticorrosion layer is coated on the inner wall of the pipe body, an outer anticorrosion layer is coated on the outer wall of the pipe body, a protecting layer with high mechanical resistance is coated on the surface of the outer anticorrosion layer, and the outer anticorrosion layer is adhered to the protecting layer through an adhesive layer. By the added protecting layer with high mechanical resistance, the defects that the outer anticorrosion layer is poor in mechanical resistance and causes chemical reaction easily due to water-absorbing quality of the outer anticorrosion layer are overcome, and accordingly the steel-plastic pipe is higher in mechanical resistance, better in anticorrosion performance, and longer in service life.

Description

The two anti-steel of multiple layer are moulded pipe

Technical field

The utility model relates to steel and moulds the tubing field, specifically, relates to the two anti-steel of a kind of multiple layer and moulds pipe.

Background technique

Along with developing rapidly of economic construction, carry the application of tubing in water-supply systems and drainage of various fluids more and more extensive, and fluid is the main cause that tubing causes damage to the corrosivity of tubing.In order to extend the working life of tubing, the most frequently used method is that the inner and outer surface at tubing applies corrosion-inhibiting coating tubing is protected, and this tubing is exactly that present widely used steel is moulded pipe.But existing steel is moulded pipe, overlays on the shortcoming that external anti-corrosion layer on its outer wall has anti-bad mechanical property, and in addition, external anti-corrosion layer is epoxy material, has moisture absorption, easily causes electrochemical reaction.

The model utility content

The technical problems to be solved in the utility model is to overcome defects, provides the two anti-steel of multiple layer that a kind of corrosion-resistant, anti-mechanical property by force, can not produce electrochemical reaction to mould pipe.

For addressing the above problem, the technological scheme that the utility model adopts is:

The two anti-steel of a kind of multiple layer are moulded pipe, comprise body, are coated with interior anticorrosive coat on the inwall of body, are coated with external anti-corrosion layer on the outer wall of body, it is characterized in that: be covered with the strong protective coating of anti-mechanical property on the surface of described external anti-corrosion layer.

Say further, pass through the adhesive layer adhering junction between described external anti-corrosion layer and protective coating.

Beneficial effect: compared with prior art, the utility model is to mould the surface of managing the external anti-corrosion layer on outer wall at existing steel to have set up the protective coating with superpower anti-mechanical property, the shortcoming and the external anti-corrosion layer that have solved the anti-bad mechanical property of external anti-corrosion layer easily cause the defective of electrochemical reaction because having moisture absorption, make steel mould that the anti-mechanical property of pipe is stronger, corrosion resistance better, longer service life.

Description of drawings

Accompanying drawing is the cross section structure schematic diagram that the two anti-steel of multiple layer described in the utility model are moulded pipe.

Embodiment

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.

With reference to accompanying drawing, the two anti-steel of multiple layer described in the utility model are moulded pipe, comprise body 2, are coated with interior anticorrosive coat 1 on the inwall of body 2, are coated with external anti-corrosion layer 3 on the outer wall of body 2.Be covered with the strong protective coating of anti-mechanical property 5 on the surface of described external anti-corrosion layer 3.Pass through adhesive layer 4 adhering junctions between described external anti-corrosion layer 3 and protective coating 5.

The two anti-steel of multiple layer described in the utility model are moulded the pipe preparation process and are summarized as follows:

Step 1: body 2 carries out the electromagnetic coil heating in medium frequency through after acid washing phosphorization processing or impeller blasting processing, after reaching spraying temperature, and anticorrosive coat 1, external anti-corrosion layer 3 in spraying respectively on body 2 inner and outer walls;

Step 2: be cured processing, use water for cooling, when body 2 is down to when reaching uniform temperature, at the surface spraying adhesive layer 4 (main material is the agent of polymer gluing) of external anti-corrosion layer 3;

Step 3: around attached protective coating 5, and complete through water cooling outside adhesive layer 4.

Claims

1. the two anti-steel of multiple layer are moulded pipe, comprise body, are coated with interior anticorrosive coat on the inwall of body, are coated with external anti-corrosion layer on the outer wall of body, it is characterized in that: be covered with the strong protective coating of anti-mechanical property on the surface of described external anti-corrosion layer.

2. the two anti-steel of multiple layer according to claim 1 are moulded pipe, it is characterized in that: pass through the adhesive layer adhering junction between described external anti-corrosion layer and protective coating.