CN101511501B - Method for manufacturing a heat exchanger tube - Google Patents
Method for manufacturing a heat exchanger tube Download PDFInfo
- Publication number
- CN101511501B CN101511501B CN2007800325016A CN200780032501A CN101511501B CN 101511501 B CN101511501 B CN 101511501B CN 2007800325016 A CN2007800325016 A CN 2007800325016A CN 200780032501 A CN200780032501 A CN 200780032501A CN 101511501 B CN101511501 B CN 101511501B
- Authority
- CN
- China
- Prior art keywords
- pipeline
- heat exchanger
- strap
- fin
- described method
- Prior art date
- 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.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/08—Making tubes with welded or soldered seams
- B21C37/09—Making tubes with welded or soldered seams of coated strip material ; Making multi-wall tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Electroplating Methods And Accessories (AREA)
- Coating With Molten Metal (AREA)
Abstract
The present invention relates to a method for manufacturing a tube (12) for heat-exchangers. According to the present invention, the method includes the following steps: roll bending a tube from a metal strip (10) comprising at least one metallic base layer; welding the tube (11); and stretching the welded tube (11). The invention also relates to a tube for heat-exchangers obtained according to said method, and to a heat-exchanger comprising at least one such tube. Applicability: heat-exchange systems in automotive vehicles.
Description
The present invention relates to a kind of method of making pipeline, this pipeline is used for the circulation of the heat-conducting liquid of heat exchanger.
The present invention has found particularly advantageous application in the field of the heat-exchange system that is used for motor vehicles, particularly is used in the engine cool radiator.
Some existing motor vehicles heat exchangers comprise conduit bundles; These pipelines are provided with in a row or many rows (bank) in parallel with each other; These pipelines are used for allowing heat-conducting fluid to flow through interchanger, this heat-conducting fluid under the situation of engine cool radiator such as being the water that is added with ethylene glycol.Along with the cooled engine parts, water self is heated and need be cooled subsequently.The effect of radiator is exactly to carry out this function.For this reason, the water that be cooled is cooled through the circulation of radiator pipeline and through the heat exchange with air, and heat exchange is accomplished via the heat exchange elements that is arranged in conduit bundles.
Usually, the pipeline of use by such as aluminum or aluminum alloy such being difficult for process through oxidated metal material.
According to being used for the technology of assembled heat interchanger, can distinguish dissimilar heat exchange elements.
When being assembled into the machinery assembling, heat exchange elements is parallel fin (fin), and circulating line passes these fins via the hole of in fin, processing.This mechanically keeps together through flanging (crimping), and said flanging uses and is inserted into the instrument in the pipeline so that make the duct wall distortion and force duct wall to prop up the hole of in fin, processing.
Other package technique is pipeline to be soldered to comprise on the heat exchange elements of the insert between the pipeline.Usually, these inserts are manufactured to the form of corrugated surface, and pipeline is brazed to insert at the place, top of ripple.
The present invention can be applicable to the heat exchanger of heat exchanger and soldering of machinery assembling on the two, but on the heat exchanger that machinery is assembled, more has superiority.
The heat exchanger of machinery assembling is meant a kind of heat exchanger, and wherein, heat exchange elements is parallel fins especially, and circulating line passes these fins via the hole of in fin, processing.
In the interchanger of machinery assembling type, can also heat exchanger mechanically be kept together through flanging, said flanging uses and is inserted into the instrument in the pipeline so that make the duct wall distortion and force duct wall to prop up the hole of in fin, processing.
The heat exchanger of machinery assembling also can be (flared) of enlarging at some places, end of the circulating line that is positioned at interchanger header (header box) at least.Therefore; The flared end that protrudes out the pipeline in the header is especially through the seal manifold case with the seal cooperation; And/or prevent any lengthwise movement of pipeline and pipeline and header are kept together, and need not to adopt cross piece (cross-piece) or end plate (end plate).This enlarging also is that firmly (forcibly) realizes usually.
A kind of method that current manufacturing is used to produce the aluminum pipe of heat exchanger is extrusion modling (extrusion) or extrusion moulding (co-extrusion).
Under both of these case, final line size directly obtains when leaving single lead screw ex truding briquetting machine.The difference of these two kinds of methods is the mode of their processing etching problems.Under the situation of extrusion modling pipeline, the raw material of use is the alloy that is known as " longevity " alloy (" long life " alloy), and this alloy provides corrosion protection inherently.Under the situation of extrusion moulding pipeline, two kinds of materials are simultaneously through the single lead screw ex truding briquetting machine extruding, and wherein a kind of material is used as the corrosion protection layer.
For the purpose of the stock control of different line sizes, be feasible from female pipeline (master tube) drawing (draw) pipeline that itself comes from extrusion modling or extrusion moulding process.
Another kind of known method is the electric welding of multilayer aluminium strip, and wherein one deck is used to provide corrosion protection.Electric welding after said band is curled.
But there are some shortcomings in these known methods.
Under the situation of extrusion modling or extrusion moulding, there is the cost problem, because the reduction of duct thickness is attended by slowing down of material feed speed, thereby reduced production capacity.Drawing technique can bring identical problem, and wherein, the reduction of thickness needs more drawing passes.
At last, " longevity " alloy is difficult to work when little thickness, and this is because its different structure and low mechanical property.
Electric welding is accomplished on the metallic plate that curls.Be to guarantee the contact between two edges of curl plate, must use the forging strain (forging strain) of the weld seam formation that causes welding material.Material can subside under little thickness, thereby has limited reducing of duct thickness.
This material weld seam can be struck off (scraped) from the outside, have the risk of scratch pipe surface although it is so, and this scratch may cause the sealing disappearance at tank seal place.
The inside weld of welding material only just can be removed when pipe diameter is enough big.When diameter too hour, can not introduce the scraping instrument, this makes troubles for follow-up assembly operation, particularly expansion line mechanically.Thereby the necessary shape that changes bordering tool.
In addition, vibration when it must be noted that and the vibration of bringing for the scraping instrument owing to the pipeline operation, striking off of the interior and outside weld of welding material is to be difficult to control.
Therefore; An object of the present invention is to propose a kind of method of making pipeline; Said pipeline is used for the circulation of the heat-conducting liquid of heat exchanger, and this method cost is lower than extrusion modling and extrusion forming method, and the shortcoming of the electric soldering method that can avoid being associated with appearance of weld.
According to the present invention, this purpose is achieved through the fact that said method comprises the steps:
-by the strap-like member pipeline that curls, said strap-like member comprises at least one metal-based layer (metal baselayer),
-welded pipe line,
-drawing welded pipe line.
Thereby the step that is appreciated that the drawing welded pipe line makes and the size that can reduce pipeline from diametrically and from the thickness aspect is removed by the interior and outside weld of the material that forms during the welding step simultaneously, therefore makes follow-up mechanical assembly operation be more prone to.
The present invention also has other advantage, such as the pipeline of the different size that possibly obtain small size coating pipeline (plated tube) and can realize producing from the strap-like member of single width.
According to the present invention, the drawing step has been followed annealing steps.Because pipeline is hard especially after the drawing, annealing allows pipeline to get back to soft state, in order that follow-up shaping and cutting operation.
The invention still further relates to a kind of pipeline that is used for heat exchanger that obtains by said method, also relate to a kind of heat exchanger that comprises at least one this pipeline.
Below with reference to the description of the accompanying drawing that provides through limiting examples, will and how to implement essence of the present invention to provide clearly and understand.
Fig. 1 shows each step according to the method for the invention.
Fig. 1 shows a kind of method of making pipeline, and said pipeline is used for the circulation at the heat-conducting liquid of the heat exchanger that uses such as auto industry.
Preliminary step (a) is to select raw material, and this raw material will be with acting on the base material of making pipeline.
This raw material can be a multilayer strap-like member 10, and this strap-like member has the aluminum base layer as supporter on the one hand, and this layer can be " longevity " alloy, has one or more aluminium coats with Anticorrosive Character, brazing characteristics etc. on the other hand.
Can also use simple strap-like member and before strap-like member curls and welds, additional corrosion protective covering is applied to strap-like member 10.
Strap-like member provides solution flexibly as the use of raw material, and this scheme provides the not limited selection of material and coating.
During operation (b), this strap-like member 10 is curled, according to demand in the inboard or the outside place protective layer, and then welding.
Welding makes curling pipeline 11 closed from one's body, thereby has produced the alloyed region of the mixing that comprises each layer.This welding operation has caused in the welding material of greater or lesser magnitude the formation with outside weld according to used welding method, welding method comprises: laser weld, plasma welding, electric welding etc.
Step (c) comprises, at first drawing is so curled and the pipeline 11 of welding, then in case left behind the mould being annealed by drawing pipeline 12 by the drawing pipeline.
As previously mentioned, drawing operation make can:
-reduce line size from diametrically with from the thickness aspect;
Interior and the outside weld of-removal welding material;
-use single female pipe 11 also therefore to use the strap-like member 10 of single width to process the pipeline of different end diameter and end thickness.
The purpose of annealing is to make pipeline 12 get back to soft state, pipeline is shaped and the final step (d) that is cut to fixed length is more prone to, and wherein, for example makes pipeline be configured as round or puts down.
Claims (7)
1. method of making heat exchanger; This heat exchanger comprises parallel fin; Circulating line passes these fins via the hole of in fin, processing, and in the method, circulating line and fin mechanically keep together through flanging; Said flanging uses and is inserted into the instrument in the pipeline so that make the duct wall distortion and force duct wall to prop up the hole of in fin, processing, and said method comprising the steps of:
-by strap-like member (10) pipeline (11) that curls, said strap-like member comprises metal-based layer at least,
-weld said pipeline (11),
The said welded pipe line of-drawing (11).
2. the method for claim 1, wherein drawing step has been followed annealing steps.
3. like a described method in the claim 1 and 2, comprise the final step that is shaped and is cut to fixed length.
4. like each the described method in the claim 1 to 2, wherein, said metal-based layer is processed by long-lived metal alloy.
5. like each the described method in the claim 1 to 2, wherein, said strap-like member further comprises one deck coat of metal at least.
6. like a described method in the claim 1 and 2, wherein, said strap-like member was provided with the anti-corrosion protection layer before curling and welding.
7. a heat exchanger is characterized in that, said heat exchanger obtains through using a described method in the claim 1 to 6.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0607668 | 2006-08-31 | ||
| FR0607668A FR2905289B1 (en) | 2006-08-31 | 2006-08-31 | TUBE REALIZATION METHOD FOR HEAT EXCHANGER, TUBE OBTAINED BY SUCH A METHOD AND HEAT EXCHANGER HAVING SUCH A TUBE. |
| PCT/EP2007/057598 WO2008025615A1 (en) | 2006-08-31 | 2007-07-24 | Method for manufacturing a heat exchanger tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101511501A CN101511501A (en) | 2009-08-19 |
| CN101511501B true CN101511501B (en) | 2012-09-05 |
Family
ID=37781785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800325016A Expired - Fee Related CN101511501B (en) | 2006-08-31 | 2007-07-24 | Method for manufacturing a heat exchanger tube |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2056976A1 (en) |
| CN (1) | CN101511501B (en) |
| BR (1) | BRPI0715650A2 (en) |
| FR (1) | FR2905289B1 (en) |
| RU (1) | RU2448797C2 (en) |
| WO (1) | WO2008025615A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2982663B1 (en) * | 2011-11-10 | 2015-01-23 | Valeo Systemes Thermiques | METHOD OF MANUFACTURING A HEAT EXCHANGER AND HEAT EXCHANGER OBTAINED BY SAID METHOD, OLIVE AND DEVICE FOR EXPANSION OF TUBES FOR IMPLEMENTING SAID METHOD |
| CN104139283B (en) * | 2014-08-01 | 2016-05-25 | 中国水利水电第十工程局有限公司 | The preparation method of pressure backfill type pipeline |
| ES2733747B2 (en) * | 2018-05-31 | 2021-10-07 | Valeo Termico Sa | HEAT EXCHANGER FOR GASES, ESPECIALLY FOR EXHAUST GASES FROM AN ENGINE |
| CN109945724A (en) * | 2019-02-26 | 2019-06-28 | 徐志良 | A kind of heat exchanger tube and preparation method thereof |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU388865A1 (en) * | 1971-07-02 | 1973-07-05 | METHOD OF MAKING BIMETALLIC PIPES | |
| SU827957A1 (en) * | 1979-06-18 | 1981-05-07 | Ордена Ленина И Ордена Трудовогокрасного Знамени Институт Электросварки Им.E.O.Патона Ah Украинской Ccp | Heating pipe and method of manufacturing same |
| DE3807002C1 (en) * | 1988-03-01 | 1989-04-27 | Mannesmann Ag, 4000 Duesseldorf, De | |
| JPH02108411A (en) * | 1988-10-17 | 1990-04-20 | Sumitomo Light Metal Ind Ltd | Method and apparatus for manufacturing |
| RU2068324C1 (en) * | 1991-11-18 | 1996-10-27 | Акционерное общество открытого типа "Северсталь" | Bimetal strip, for instance for welded pipes, and bimetal strip manufacture method |
| WO1994021837A1 (en) * | 1993-03-24 | 1994-09-29 | Tubemakers Of Australia Limited | Tube formed from steel strip having metal layer on one side |
| RU2070451C1 (en) * | 1994-09-28 | 1996-12-20 | Акционерное общество открытого типа "Уральский научно-исследовательский институт трубной промышленности" | Method of manufacture of welded cold-worked pipes |
| JPH09295089A (en) * | 1996-05-09 | 1997-11-18 | Furukawa Electric Co Ltd:The | Thin and flat tube for heat exchanger |
| JP2001241877A (en) * | 2000-02-25 | 2001-09-07 | Furukawa Electric Co Ltd:The | Inner helically grooved tube and method of manufacture |
| RU2185910C1 (en) * | 2000-12-06 | 2002-07-27 | Уфимский государственный авиационный технический университет | Mill for making straight-seam welded measure-length tubes |
| RU2176583C1 (en) * | 2001-04-19 | 2001-12-10 | Андрианов Николай Филиппович | Method for making heat exchanger with tubular member |
-
2006
- 2006-08-31 FR FR0607668A patent/FR2905289B1/en not_active Expired - Fee Related
-
2007
- 2007-07-24 RU RU2009111592/02A patent/RU2448797C2/en active
- 2007-07-24 WO PCT/EP2007/057598 patent/WO2008025615A1/en active Application Filing
- 2007-07-24 BR BRPI0715650-2A patent/BRPI0715650A2/en not_active Application Discontinuation
- 2007-07-24 CN CN2007800325016A patent/CN101511501B/en not_active Expired - Fee Related
- 2007-07-24 EP EP07787841A patent/EP2056976A1/en not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| JP特开平9-295089A 1997.11.18 |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2009111592A (en) | 2010-10-10 |
| RU2448797C2 (en) | 2012-04-27 |
| CN101511501A (en) | 2009-08-19 |
| BRPI0715650A2 (en) | 2013-07-02 |
| WO2008025615A1 (en) | 2008-03-06 |
| FR2905289B1 (en) | 2009-04-17 |
| FR2905289A1 (en) | 2008-03-07 |
| EP2056976A1 (en) | 2009-05-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 |