CN2760360Y

CN2760360Y - A cold rolling continuous-weld metallic internal composite tube

Info

Publication number: CN2760360Y
Application number: CN 200420088274
Authority: CN
Inventors: 严孟杰
Original assignee: JIXIN YINGDE HOT ROLLING STAIN
Current assignee: JIXIN YINGDE HOT ROLLING STAIN
Priority date: 2004-09-16
Filing date: 2004-09-16
Publication date: 2006-02-22
Anticipated expiration: 2014-09-16

Abstract

The utility model provides a cold rolling continuous weld metal internal composite tube. The utility model is composed of an outer layer basal metal tube and an inner layer composite metal tube, wherein both the outer layer basal metal tube and the inner layer composite metal tube are metal tubes which are axially and continuously welded; the welding seam of the basal metal tube coincides with the welding seam of the composite metal tube; the welding part of the composite metal tube bulges outwards. The utility model has the advantages of low manufacture cost, corrosion prevention performance and favorable reprocessing performance.

Description

Composite pipe in a kind of cold rolling continuous welding metal

Technical field

The utility model relates to a kind of metal composite pipe, is meant composite pipe in a kind of cold rolling continuous welding metal that uses in the industry especially.

Background technique

The application of metal composite pipe is mainly based on Economy and aim of saving, and the specific use on various device.For example, require to possess the pressurized container, pipeline of anti-corrosion capacity etc., adopting the Stainless Steel Tube manufacturing more reasonable, but the cost height; If adopt the same pressurized container of normal carbon steel pipe and the compound composite pipe manufacturing that makes of Stainless Steel Tube, pipeline etc., the thickness of Stainless Steel Tube only integral thickness 2～10%, so not only satisfy the corrosion resistance and the sufficiently high intensity of container, and reduced cost greatly.In addition, some has the metallic material of superior heat resistance, corrosion-resistant and conduction, heat-conducting property, as copper, manganese, titanium or chromium etc., the problem that has scarcity of resources, if adopt bilayer or multi-layered composite pipe, not only help saving resource, also can satisfy the special requirement in a lot of engineerings.

At present, metal composite pipe mainly is to adopt mechanical complex method manufacturing, as hydraulic pressure composite pipe, drawing composite pipe etc., or the welding composite pipe of employing Clad Steel Plate bending welding etc., the shortcoming that hydraulic pressure composite pipe and drawing composite pipe exist is: processed complex, cost height, the back poor processability of composite pipe (can not bend, processing such as folding, weldering, pressure); The shortcoming that the welding composite pipe exists is: because there is the permeation between the different metal element in the welding of composite bed end face, influence the usability of composite pipe.

Summary of the invention

The purpose of this utility model is to provide composite pipe in good, the broad-spectrum cold rolling continuous welding metal of a kind of cycling processability.

The purpose of this utility model is achieved in that composite pipe in a kind of cold rolling continuous welding metal, form by outer parent metal pipe and internal layer plied timber pipe, wherein: outer parent metal pipe, internal layer plied timber pipe are the metal tube of axial continuous welding, the soldered of parent metal pipe overlaps with the soldered of plied timber pipe, and the weld part of plied timber pipe is to outer lug.

The further improvement project of the utility model is: can also be between outer parent metal pipe and internal layer plied timber pipe by the middle close binder of forming by braze and parent metal atom and plied timber atom, and the thickness of middle close binder is 1～10 micron; Interfacial bonding strength between so outer parent metal pipe and the internal layer plied timber pipe can reach more than the 210MPa.

Parent metal pipe described in the utility model comprises the carbon steel tubing and the alloy steel pipe of continuous welding, and described plied timber pipe comprises Stainless Steel Tube, copper pipe or the titanium pipe etc. of continuous welding.

The utility model is owing to adopt said structure, because of the inner layer metal pipe at weld part to outer lug, form inner layer metal pipe scolder, solved composite pipe in-process stock infiltration problem in the metal, provide that a kind of cost of production is low, Corrosion Protection, cycling processability be all very excellent, application is composite pipe in the metal very widely.

Description of drawings

The utility model is further described below in conjunction with accompanying drawing, but do not constitute any restriction of the present utility model.

Fig. 1 is the utility model embodiment 1 a structural representation;

Fig. 2 is the utility model embodiment 2 a structural representation.

Among the figure: 1 parent metal pipe, 2 plied timber pipes, 3 projectioies, 4 middle close binders.

Embodiment

Embodiment 1:

As shown in Figure 1, composite pipe in a kind of cold rolling continuous welding metal of the present utility model, stainless steel double layer metal tube 2 by outer field carbon steel parent metal pipe 1 and internal layer formed, outer carbon steel parent metal pipe 1, internal layer stainless steel double layer metal tube 2 are axial continuous welding and form, the soldered of carbon steel parent metal pipe 1 overlaps with the soldered of stainless steel double layer metal tube 2, and the weld part of stainless steel double layer metal tube 2 is to outer lug 3.

Embodiment 2:

As shown in Figure 2, composite pipe in a kind of cold rolling continuous welding metal of the present utility model, stainless steel double layer metal tube 2 and middle close binder 4 by outer field carbon steel parent metal pipe 1, internal layer are formed, outer carbon steel parent metal pipe 1, internal layer stainless steel double layer metal tube 2 are axial continuous welding and form, the soldered of carbon steel parent metal pipe 1 overlaps with the soldered of stainless steel double layer metal tube 2, and the weld part of stainless steel double layer metal tube 2 is to outer lug 3; Middle close binder 4 is between outer parent metal pipe 1 and the internal layer plied timber pipe 2, is made up of braze and parent metal atom and plied timber atom, and the thickness of middle close binder 4 is 1～10 micron.

Claims

1. composite pipe in the cold rolling continuous welding metal, form by outer parent metal pipe (1) and internal layer plied timber pipe (2), it is characterized in that: outer parent metal pipe (1), internal layer plied timber pipe (2) are the metal tube of axial continuous welding, the soldered of parent metal pipe (1) overlaps with the soldered of plied timber pipe (2), and the weld part of plied timber pipe (2) is to outer lug.

2. composite pipe in the cold rolling continuous welding metal according to claim 1 is characterized in that: also have middle close binder (4) between outer parent metal pipe (1) and internal layer plied timber pipe (2), the thickness of middle close binder (4) is 1～10 micron.

3. composite pipe in the cold rolling continuous welding metal according to claim 1 and 2, it is characterized in that: described parent metal pipe (1) comprises the carbon steel tubing and the alloy steel pipe of continuous welding, and described plied timber pipe (2) comprises Stainless Steel Tube, copper pipe or the titanium pipe of continuous welding.