CN2658517Y

CN2658517Y - Steel-plastic composited tube with multi-layer material composited inner tube

Info

Publication number: CN2658517Y
Application number: CN 03222728
Authority: CN
Inventors: 李志雄; 魏长春
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-01-06
Filing date: 2003-01-06
Publication date: 2004-11-24
Anticipated expiration: 2013-01-06

Abstract

The utility model relates to a composite steel-plastic tube having an external tube composite of multiplayer materials, and consists of a plastic layer (1) of an internal tube, an internal rubber layer (2), a steel tube layer (4), an external rubber layer (6) and an external plastic layer (7), wherein, the steel tube layer (4) is covered outside the plastic layer (1) of the internal tube. The external plastic layer (7) is covered outside the steel tube layer (4). The steel tube layer (4) is adhesively connected with the plastic layer (1) of the internal tube through the internal rubber layer (2). The external plastic layer (7) is adhesively connected with the steel tube layer (4) through the external rubber layer (6). The internal wall of the steel tube layer(4) is coated with an internal epoxy layer(3), and adhesively connected with the plastic layer(1) of the internal tube through the internal epoxy layer(3) and the internal rubber layer(2). The external wall of the steel tube layer(4) is also coated with an external epoxy layer(5), and adhesively connected with the external plastic layer(7) through the external epoxy layer(5) and the external rubber layer(6). The utility model synthesizes the advantages of various materials that the tube has a good strength, an anti-erosion performance, a high pressure resistance and a lower cost.

Description

Pipe is the compound steel-plastic composite pipe of multilayer material in a kind of

Technical field:

The utility model relates to a kind of novel steel-plastic composite pipe, specifically is that a kind of interior pipe is the compound steel-plastic composite pipe of multilayer material.

Background technique:

At present, in line transportation, available tubing is of a great variety, and to Glass Steel Tube etc., these several pipe performances are different from steel pipe, plastic tube, cement pipe, and wherein steel pipe, cast iron tube intensity are good, but corrosion resistance is low; Plastic tube is corrosion-resistant, but intensity is low, can not be used for the high pressure occasion; Cement pipe is bulky, connects poorly sealed, withstand voltage low; The combination property of Glass Steel Tube is better, but cost is higher.The manufacturing technology of these several tubing is also each has something to recommend him, and steel pipe, plastic tube can be produced continuously, and cast iron tube, cement pipe, Glass Steel Tube can only single segmentation production.

Summary of the invention:

It is the compound steel-plastic composite pipe of multilayer material that the purpose of this utility model provides a kind of withstand voltage height, good corrosion resistance, intensity height, cost interior pipe low, good combination property.

In order to address the above problem, the utility model adopts following technological scheme: structural representation of the present utility model as shown in Figure 1, pipe plastic layer (1), inner glue layer (2) in including, steel pipe layer (4), outer glue-line (6), plastic layer (7) again outward, wherein steel pipe layer (4) is nested with the outside at interior pipe plastic layer (1), outer plastic layer (7) again is nested with the outside in steel pipe layer (4), and it is bonding between steel pipe layer (4) and the interior pipe plastic layer (1), bonding between plastic layer (7) and the steel pipe layer (4) again outward by outer glue-line (6) by inner glue layer (2).

The inwall of above-mentioned steel pipe layer (4) also can be coated with interior epoxy layer (3), and it is bonding with interior pipe plastic layer (1) by interior epoxy layer (3) and inner glue layer (2).

The outer wall of above-mentioned steel pipe layer (4) also can be coated with outer epoxy layer (5), and it is bonding with the outer plastic layer (7) of answering by outer epoxy layer (5) and outer glue-line (6).

The utility model is owing to adopt the compound structure of multilayer material; the high strength of utilizing steel pipe is as main carrier; bear high pressure; utilize plastic materials corrosion-resistant; smooth surface; the excellent properties that fluid resistance is little; utilize the bond medium between interior pipe of hot melt adhesive work and the steel pipe; steel pipe is placed among the protection of internal and external layer plastics and epoxy coating; utilize the high bond strength between epoxy coating and the steel; improve the bond effect between each layer; and increase anti-corrosion protection function; the utility model combines the advantage of various materials; the intensity of tubing is good; corrosion-resistant; and withstand voltage height; be that a kind of cost is low, the interior pipe of good combination property is the compound steel-plastic composite pipe of multilayer material.Can be widely used in supplying water, in the every profession and trade such as air feed, oil, chemical industry as the conveyance conduit of various media.

Description of drawings:

Fig. 1 is a structural representation of the present utility model.

Embodiment:

Structural representation of the present utility model as shown in Figure 1, pipe plastic layer (1), inner glue layer (2) in including, steel pipe layer (4), outer glue-line (6), plastic layer (7) again outward, wherein steel pipe layer (4) is nested with the outside at interior pipe plastic layer (1), outer plastic layer (7) again is nested with the outside in steel pipe layer (4), and it is bonding between steel pipe layer (4) and the interior pipe plastic layer (1), bonding between plastic layer (7) and the steel pipe layer (4) again outward by outer glue-line (6) by inner glue layer (2).

For improving the bond effect between each layer; and increase anti-corrosion protection function; the inwall of above-mentioned steel pipe layer (4) also can be coated with interior epoxy layer (3); it is bonding with interior pipe plastic layer (1) by interior epoxy layer (3) and inner glue layer (2); the outer wall of steel pipe layer (4) can be coated with outer epoxy layer (5), and it is bonding with the outer plastic layer (7) of answering by outer epoxy layer (5) and outer glue-line (6).

For improving the adhesion strength between interior epoxy layer (3) and outer epoxy layer (5) and the steel pipe layer (4), that the surface of steel pipe layer (4) also can be carried out is zinc-plated, zinc-plated, copper facing, the processing of nickel plating phosphorus.

In the present embodiment, the thickness of interior pipe plastic layer (1) is 0.5～3.5mm; The thickness of inner glue layer (2) is 0.1～0.25mm; The thickness of interior epoxy layer (3) is 0.002～0.03mm; More than the thickness 0.3mm～10mm of steel pipe layer (4), it can be determined according to the working pressure and the strength of materials; The thickness of outer epoxy layer (5) is 0.002～0.045mm; The thickness of outer glue-line (6) is 0.1～0.2mm; The outer thickness of plastic layer (7) again is 0.5～5.5mm, the utility model during fabrication, above-mentioned each layer be combined with each other by order shown in Figure 1 to get final product.

Claims

1. pipe is the compound steel-plastic composite pipe of multilayer material in one kind, pipe plastic layer (1), inner glue layer (2) in it is characterized in that including, steel pipe layer (4), outer glue-line (6), plastic layer (7) again outward, wherein steel pipe layer (4) is nested with the outside at interior pipe plastic layer (1), outer plastic layer (7) again is nested with the outside in steel pipe layer (4), and it is bonding between steel pipe layer (4) and the interior pipe plastic layer (1), bonding between plastic layer (7) and the steel pipe layer (4) again outward by outer glue-line (6) by inner glue layer (2).

2. pipe is characterized in that for the compound steel-plastic composite pipe of multilayer material the inwall of above-mentioned steel pipe layer (4) also can be coated with interior epoxy layer (3) in according to claim 1, and it is bonding with interior pipe plastic layer (1) by interior epoxy layer (3) and inner glue layer (2).

3. pipe is the compound steel-plastic composite pipe of multilayer material in according to claim 1, it is characterized in that the outer wall of above-mentioned steel pipe layer (4) also can be coated with outer epoxy layer (5), and it is bonding with the outer plastic layer (7) of answering by outer epoxy layer (5) and outer glue-line (6).