CN104279380B - A kind of light-wall pipe method of attachment - Google Patents
A kind of light-wall pipe method of attachment Download PDFInfo
- Publication number
- CN104279380B CN104279380B CN201310292743.6A CN201310292743A CN104279380B CN 104279380 B CN104279380 B CN 104279380B CN 201310292743 A CN201310292743 A CN 201310292743A CN 104279380 B CN104279380 B CN 104279380B
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- CN
- China
- Prior art keywords
- pipe
- pipe fitting
- light
- attachment
- connector
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
- F16L13/02—Welded joints
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Diaphragms And Bellows (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
A kind of light-wall pipe method of attachment, is particularly well-suited to heavy caliber, being tightly connected of thickness 0.8mm following stainless steel pipe (such as corrugated tube).Including two metal tubes to be connected, first will expand at the connector of one of them pipe fitting, make to be inserted in the pipe fitting expanded at another pipe fitting connector, to realize being in close contact by expansion or compression mode at the connector of two pipe fittings again, to weld at two pipe fittings connector again, make two pipe fittings fusion be integrated；Also can connect overlapping part expansion ripple at pipe fitting as required, then in the overlapping part welding being in close contact, welding method have employed unilateral welding mode.Being characterized in simple and reliable, low cost, efficiency is high.
Description
Technical field
Patent of the present invention relates to a kind of light-wall pipe method of attachment, and the corrugated tube being particularly well-suited to the corrugated fuel reserve tank of power transformer connects.
Background technology
When the light-wall pipe of below wall thickness 0.8mm uses welding method to connect, difficulty is relatively big, and when particularly heavy caliber corrugated tube extends connection, welding quality is less susceptible to ensure, appearance of weld, air-tightness and production efficiency are the most undesirable.The method that a lot of enterprises can use at present is exactly by flat for bellows end wave pressure, and two corrugated tubes flattening end ripple are the most welded together.The shortcoming of this method is that the toe misalignment after flattening is big, and welding fusion is bad, and deformation is big, and this solder joint stress is concentrated fragile when bellows.
Summary of the invention
In order to solve the technical problem of above-mentioned existence, the present invention provides a kind of simple and practical light-wall pipe method of attachment,
It is an object of the invention to be achieved through the following technical solutions: a kind of light-wall pipe method of attachment, it is characterized in that: include two metal tubes to be connected, first will expand at the connector of one of them pipe fitting, make to be inserted in the pipe fitting expanded at another pipe fitting connector, to realize being in close contact by expansion or compression mode at the connector of two pipe fittings again, to weld at two pipe fittings connector again, make two pipe fittings fusion be integrated.
Or by the girth blank size of one of them pipe fitting more than another pipe fitting so that another pipe fitting can insert this pipe fitting, then will realize being in close contact by expansion or compression mode at both connectors, then will weld at two pipe fittings connector, makes two pipe fittings fusion be integrated.
Described light-wall pipe is made by the stainless steel-like extensible material of thickness 0.2mm to 0.8mm.
Described light-wall pipe is circle corrugated pipe, is connected by the end of several corrugated tubes, it is achieved ripple number increases.
Described light-wall pipe is square corrugated pipe, or the corrugated tube being made up of straight section and arc section, is connected by the end of several corrugated tubes, it is achieved ripple number increases.
Can also first mold ripple at the overlapping part that pipe fitting connects, weld at crest the most again, the inside and outside two-layer of fusion, reach to be tightly connected.
The welding method that above-mentioned pipe fitting connects is in the outside of the overlapping part being in close contact or inner side, uses the fusion welding of electric arc one side.
The welding method that above-mentioned pipe fitting connects can also use electric-resistance seam-welding method to seal welding at the overlapping part being in close contact.
Technical solution of the present invention has the advantage that 1, welding operation is simple, without strict technology requirement, checks that reverse side penetration i.e. can ensure that weld joint air-tight, efficiency height, reliable in quality.2, the unstressed concentration of junction point, endurance, it is in close contact at overlapping part, one side will not be produced during melting welding and burn phenomenon；3, junction forms a ripple of corrugated tube, may participate in flexible work, and 4, appearance looks elegant, cost is extremely low.
Accompanying drawing explanation
Fig. 1 is pipe fitting 1 connection diagram overlapping with pipe fitting 2.
Fig. 2 is pipe fitting 1 and pipe fitting 2 expansion ripple weld schematic diagram.
Fig. 3 is the partial enlarged drawing of I in Fig. 2.
Detailed description of the invention
A kind of light-wall pipe method of attachment, two pipe fittings 1 and 2 to be connected, if the bore of pipe fitting 1,2 is identical, first expansion at pipe fitting 1 connector is reached in the pipe fitting 1 that pipe fitting 2 connector is inserted into having expanded, to reach to be in close contact by methods such as expansion or compressions at the connector of both overlaps again, then weld at both connectors, reach both fusions.
Its method of attachment can also be when making pipe fitting 1, allow pipe fitting 1 blanking more than pipe fitting 2, it is achieved pipe fitting 2 can insert pipe fitting 1, will reach to be in close contact by methods such as expansion or compressions at both connectors the most again, then weld at both connectors, reach both fusions.
The feature of said method is: (1) pipe fitting 1 inserts pipe fitting 2, overlap at connector, (2) by expansion or compress to allow and be in close contact at both overlapping parts, (3) use the welding of one side fusion method, i.e. use both contacts site of argon tungsten-arc welding fusion in the inner side of overlapping part or outside；Or overlapping part is welded together by the seam welding method in employing electric resistance welding.Said method is simple, efficient, reliable, will not produce thin plate and burn.
Pipe fitting 1,2 is made by the stainless steel-like extensible material of thickness 0.2mm to 0.8mm.
Pipe fitting 1,2 can be circle corrugated pipe, square corrugated pipe, or the corrugated tube being made up of straight section and arc section, is connected by the end of several corrugated tubes, it is achieved ripple number increases.
Application example: by two wall thickness 0.4mm, long 3 meters, wide 1 meter of track type (straight flange adds circular arc) corrugated stainless steel tubing connects.Owing to wall thickness is thin, bore is big, and pending connection position is made up of straight flange and circular arc, and therefore conventional soldering method difficulty is big, and efficiency is low, and quality is unreliable.Now use technical solution of the present invention, first corrugated tube 1 connector is expanded (operating on existing corrugated pipe forming machine), reach corrugated tube 2 connector and may be inserted into overlap, such as Fig. 1, both overlappings are together become out on forming machine ripple (wave height can be slightly below normal wave height) again, such as Fig. 2, then at crest, with argon tungsten-arc welding, crest overlapping is fused (one side fusion, is shown in Fig. 3 outside crest) and i.e. complete to connect.
Claims (4)
1. a light-wall pipe method of attachment, it is characterised in that method is: include two to be connected
Metal tube, by by expansion at the connector of one of them pipe fitting or in this tube manufacture blanking
Its circumferential size of Shi Fang great so that be inserted into, at another pipe fitting connector, the pipe that circumference has amplified
In part, then the overlapping of two pipe fittings is expanded again realization and is in close contact, then by two pipe fittings weight
Weld at the expansion again at folded position, make two pipe fittings fusion be integrated；Wherein, described light-wall pipe
For circle corrugated pipe, square corrugated pipe, or the corrugated tube being made up of straight section and arc section, ripple
Thickness of pipe wall is between 0.2-0.8mm.
A kind of light-wall pipe method of attachment the most according to claim 1, it is characterised in that:
The overlapping part that pipe fitting connects first molds ripple, welds at crest the most again, and fusion is inside and outside
Two-layer, reaches to be tightly connected.
A kind of light-wall pipe method of attachment the most according to claim 1 and 2, it is characterised in that:
The welding method that pipe fitting connects is in the outside of the overlapping part being in close contact or inner side, uses electricity
The fusion welding of arc one side.
A kind of light-wall pipe method of attachment the most according to claim 1 and 2, it is characterised in that:
The welding method that pipe fitting connects is to use electric-resistance seam-welding method close at the overlapping part being in close contact
Soldering and sealing connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310292743.6A CN104279380B (en) | 2013-07-12 | 2013-07-12 | A kind of light-wall pipe method of attachment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310292743.6A CN104279380B (en) | 2013-07-12 | 2013-07-12 | A kind of light-wall pipe method of attachment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104279380A CN104279380A (en) | 2015-01-14 |
| CN104279380B true CN104279380B (en) | 2016-08-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310292743.6A Active CN104279380B (en) | 2013-07-12 | 2013-07-12 | A kind of light-wall pipe method of attachment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104279380B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654309B (en) * | 2017-10-12 | 2021-04-16 | 孙铭阳 | Welding structure of annular wave metal corrugated pipe and manufacturing method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6358679B2 (en) * | 1980-08-08 | 1988-11-16 | ||
| DE4406188C1 (en) * | 1994-02-25 | 1995-03-09 | Butting H Gmbh & Co Kg | Plated pipe |
| CN2767801Y (en) * | 2004-10-21 | 2006-03-29 | 吴鑫 | Flared socket weld pipe joint for thin-walled stainless steel pipe |
| CN201129954Y (en) * | 2007-10-24 | 2008-10-08 | 唐威力 | Copper aluminum welding assembled tube part for refrigeration system |
| CN201330896Y (en) * | 2008-12-12 | 2009-10-21 | 杨奇峰 | Slope side mouthing welding structure for thin-wall stainless steel pipeline |
| CN202852234U (en) * | 2012-10-10 | 2013-04-03 | 宁波市华涛不锈钢管材有限公司 | Thin-wall stainless steel pipeline socket brazing connecting structure |
-
2013
- 2013-07-12 CN CN201310292743.6A patent/CN104279380B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6358679B2 (en) * | 1980-08-08 | 1988-11-16 | ||
| DE4406188C1 (en) * | 1994-02-25 | 1995-03-09 | Butting H Gmbh & Co Kg | Plated pipe |
| CN2767801Y (en) * | 2004-10-21 | 2006-03-29 | 吴鑫 | Flared socket weld pipe joint for thin-walled stainless steel pipe |
| CN201129954Y (en) * | 2007-10-24 | 2008-10-08 | 唐威力 | Copper aluminum welding assembled tube part for refrigeration system |
| CN201330896Y (en) * | 2008-12-12 | 2009-10-21 | 杨奇峰 | Slope side mouthing welding structure for thin-wall stainless steel pipeline |
| CN202852234U (en) * | 2012-10-10 | 2013-04-03 | 宁波市华涛不锈钢管材有限公司 | Thin-wall stainless steel pipeline socket brazing connecting structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104279380A (en) | 2015-01-14 |
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