CN1409071A - Tank for heat exchanger and tis producing method - Google Patents
Tank for heat exchanger and tis producing method Download PDFInfo
- Publication number
- CN1409071A CN1409071A CN02144014A CN02144014A CN1409071A CN 1409071 A CN1409071 A CN 1409071A CN 02144014 A CN02144014 A CN 02144014A CN 02144014 A CN02144014 A CN 02144014A CN 1409071 A CN1409071 A CN 1409071A
- Authority
- CN
- China
- Prior art keywords
- flange
- body portion
- tank body
- heat exchanger
- die
- 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.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/06—Arrangement of mountings or supports for heaters, e.g. boilers, other than space heating radiators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/16—Folding; Pleating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
- B21D53/04—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of sheet metal
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Fluid Heaters (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention provides a can for a heat exchanger. The can 100 has a body portion 102, a lower flange (joint flange) 110 bent along the body portion 102 and joined to another casing. The lower flange 110 is formed into a double bending structure that has a bent flange portion 112 connected to the body portion 102, and an overlapped flange portion 114 bent and overlapped onto the bent flange portion 112. And a contact portion 116 is formed at a position where the overlapped flange portion 114 is joined to the body portion 102. The joint strength of the flange can be greatly improved without using the reinforcement material but only by adopting the invention.
Description
Technical field
The invention relates to a kind of have body portion and by the heat exchanger of the edge of body portion bending the becoming companion flange that combines with housing with tank body with and manufacture method.
Background technology
This tank body is made by tank body half one in conjunction with a pair of half sheet tubular made of copper in the ordinary course of things.And tank body half one is that the side by the blank that will have the flat part that becomes body portion is bent into companion flange, utilizes the bending mould of being made up of punch and die, with punch blank is pressed into die, thus the processed half sheet cylindrical body that manufactures.And this heat exchanger is with tank body on being assembled into water heater the time, utilizes companion flange and rivet with housing to combine.
When companion flange is when being made of the simple bending flange that is connected in body portion, because of tank body is a copper product, therefore proposed following scheme: companion flange is burnt blunt in the stove that carries out soldering, riveting in the operation that combines afterwards with housing, often distortion, the sealing between tank body and the housing are difficult to guarantee.Therefore, by the reinforcement material of soldering stainless steel on companion flange etc., prevent companion flange distortion (with reference to Japanese kokai publication hei 6-11192 communique, the spy opens the 2000-18727 communique) and reach.
In addition, as shown in figure 10, following scheme is also proposed: make and have the double-layer folding curved configuration that companion flange a is connected to the a1 of crooked flange portion of body portion b and overlaps the a2 of overlapping flange portion on the face with the trunk b opposition side of crooked flange portion, thereby improve the intensity of companion flange.
But if adopt scheme to the welding reinforcement material of companion flange, then because part number and process number increase, cost also will improve thereupon.And as shown in figure 10, if adopt the scheme that companion flange a is made the double-layer folding curved configuration, companion flange a is for for below the figure applies next external force, because its insufficient strength causes can not get between tank body and the housing sufficient sealing.
And blank is when bending machining, because the resistance of companion flange, might produce the anxiety of distortion of the crooked bad or companion flange of blank.
So the 1st problem of the present invention is that a kind of heat exchanger tank body that does not use reinforcement material can improve companion flange dish intensity to the utmost is provided.
In addition, the 2nd problem of the present invention is, provide a kind of when making tank body half, can suppress blank crooked bad and companion flange crooked, can carry out the method for this bending machining again.
Summary of the invention
The invention relates to a kind of heat exchanger tank body with edge bending becoming companion flange that engages with housing of body portion and body portion.
For solving the 1st above-mentioned problem, heat exchanger of the present invention is characterised in that with tank body, companion flange is made to the multilayer folding curved configuration that has the crooked flange portion that is connected with body portion and be overlapped in the overlapping flange portion in the crooked flange portion, is formed with the contact site with respect to body portion in overlapping flange portion.
According to the present invention,, thereby can improve the intensity of companion flange owing to a part that is applied to the external force on the companion flange is born by body portion by contact site.
And, the invention is characterized in that above-mentioned contact site is that the end end of overlapping flange portion is formed along the body portion bending.
According to the present invention, the occasion that contacts body portion with the ora terminalis of overlapping flange portion is compared, owing to increased the contact area with respect to body portion, therefore, can further can improve the intensity of companion flange.
And, the invention is characterized in that overlapping flange portion is overlaid on the face of body portion side of crooked flange portion, above-mentioned contact site is contacted with the outside wall surface of body portion.
According to the present invention, because the contact site of overlapping flange portion contacts rather than " internal face " with body portion " outside wall surface ", therefore, can the phenomenons such as corrosion that this part is produced will be avoided attached to the moisture in the burning and gas-exhausting on the body portion internal face etc. accumulates between contact site and the body portion, thus the durability of tank body can be improved.
In addition, the invention is characterized in that above-mentioned contact site combines with body portion.
According to the present invention,, can improve the intensity of companion flange more by combining of contact site and body portion.
In addition, the present invention relates to the manufacture method of heat exchanger with tank body, it is: the lateral margin that will have the blank of the flat part that becomes body portion is bent into companion flange, the bending mould that utilization is made up of punch and die, by punch with blank by being pressed in the die, bending machining becomes half sheet tubular and makes tank body half one.Carry out combination by tank body half one, can make the heat exchanger tank body of ora terminalis companion flange bending, that combine with housing with body portion and body portion with half a pair of sheet tubular.
For solving the 2nd above-mentioned problem, heat exchanger of the present invention is characterised in that with the manufacture method of tank body, when above-mentioned bending machining, use the die have thickness direction sandwich that can slave plate and to take in the slot part of companion flange, the distortion of the slot part restriction companion flange by die.
According to the present invention, when the bending machining of blank,, thereby can improve the precision of this bending machining because companion flange is bent again by the confined while of the slot part of die in its distortion to thickness direction.And the and for example above-mentioned heat exchanger of the present invention is such with tank body, because the companion flange that is bent on blank makes the multilayer folding curved configuration, so the resistance of the companion flange when the bending machining of blank is effective especially under bigger occasion.
In addition, the invention is characterized in that the recessed degree of depth L of die is set at more than 2.5 times of radius of curvature R of the corner part of tank body half one.
According to the present invention, when blank is pushed in the die by punch, can avoid insufficient bending of blank, make it crooked fully well.
The simple declaration of accompanying drawing
Fig. 1 is the stereogram that is provided with the heat exchanger of tank body of the present invention.
Fig. 2 is the companion flange cutaway view partly of an example of tank body of the present invention.
Fig. 3 is the flow chart of tank body manufacture method of the present invention.
Fig. 4 is the stereogram of the blank after companion flange is bent.
Fig. 5 is the bending operation key diagram of companion flange.
Fig. 6 (a)-(e) is by bending mould beginning to the key diagram of the state that finishes the blank bending machining.
Fig. 7 is the stereogram of the die of employed bending mould in the manufacture method of the present invention.
Fig. 8 and Fig. 9 are the companion flange cutaway views partly of the other example of tank body of the present invention.
Figure 10 is the cutaway view of traditional companion flange part.
The specific embodiment
Below with the example of tank body and manufacture method thereof in conjunction with the accompanying drawings to heat exchanger of the present invention.
Heat exchanger shown on Fig. 1 is loaded on the water heater.The formation of this heat exchanger is in the copper tank body 100 of the body portion 102 with corner angle tubular, to take in the hot-water line (diagram slightly) that many heat exchange fins 200 are housed.Lower Half periphery package at body portion 102 has water supply tube connector 300, and is connected with water supply tube connector 300 at the upstream extremity of heat-absorbing water pipe, and is connected with heat supply water pipe 400 at the dirty end of heat-absorbing water pipe.
The following ora terminalis bending of body portion 102 has the lower flange (companion flange) 110 with respect to burning bucket (housing/diagram slightly), and tank body 100 combines with the riveted joint of burning bucket at lower flange 110 places.In addition, flanged plate 130 is spot-welded on by on the bending upper flange 120 of the upper end-face edge of body portion 102 institute, is riveted by flanged plate 130 exhaust buckets (diagram slightly) to be combined on the tank body 100.
As shown in Figure 2, lower flange 110 becomes the double-layer folding curved configuration that has the crooked flange portion 112 that is connected in body portion 102 and be overlapped in the overlapping flange portion 114 in this crooked flange portion 112.And, be formed with contact site 116 in the overlapping flange portion 114 with respect to body portion 102.Overlapping flange portion 114 is folded on the face of body portion 102 sides of crooked flange portion 112, and the end end of overlapping flange portion 114 is crooked and form contact site 116 along the outside wall surface of body portion 102.
Manufacture method about the tank body 100 of above-mentioned formation describes in conjunction with Fig. 3-Fig. 7 below.
At first, as shown in Figure 4, the both side edges that will have the copper blank 10 of the flat part that becomes body portion 102 is bent to form lower flange 110 and upper flange 120 (s1 among Fig. 3).When being bent to form lower flange, shown in left side among Fig. 5, the lateral margin of blank 10 is folded the overlapping flange portion 114 that is processed to form, afterwards, shown in right figure among Fig. 5,, thereby form overlapping flange portion 114 by the crooked flange portion 112 after bending again to the folded part bending machining.
Then,, use the flexure type tool of forming by punch 510 and die, by blank 10 bending machining are become half sheet cylindrical body, and make tank body half one 50 (s2 among Fig. 3) as Figure 6 and Figure 7.More particularly, shown in (a)-(e) among Fig. 6, blank 10 is pressed into the bending machining of implementing in the die 520 by utilizing punch 510.
As shown in Figure 6, the end face of die 520 slightly is the L word shape, by a pair of die 520 relatively being provided with form the space that slightly is the U font corresponding to punch 510 peripheries.And for example shown in Figure 6, form in the inboard of the end face that slightly is the L word shape of die 520 width roughly with identical, the outside identical with lower flange thickness and that be lower than this end face highly roughly of lower flange 110.And then as shown in Figure 7, be set on the end face of die 520, thereby make and between the more lower part of this end face inboard and flange pressing plate 522, form slot part 524 by slightly being the flat flange pressing plate 522 of L word.In the bending machining of blank 10, shown in (a)-(e) among Fig. 6, slot part 524 is taken in it with the form from the thickness direction sandwich of lower flange 110.In addition, the recessed degree of depth L of die 520 is set at more than 2.5 times of radius of curvature R in the knee of tank body half one 50.
And and the tank body of one half sheet tubulars half one 50 is the combined tank body 100 (with reference to s3/ Fig. 1 among Fig. 3) that produces by furnace brazing.In addition, by this soldering operation, contact site 116 is incorporated into body portion 102 (with reference to Fig. 2) by soldering.
According to above-mentioned manufacture method, in the bending machining of blank 10, shown in (a)-(e) among Fig. 6, lower flange 110 is to be incorporated in from plate thickness direction sandwich form between die 520 end faces and the flange pressing plate 522 in the formed slot part 524.So, be limited to by slot part 524 at lower flange 110 and do not make under the state of distorting on its thickness direction at plate, can carry out the bending machining of blank 10.Thus, on lower flange 110, can not produce the distortion of wrinkle and so on.In this bending machining, though be subjected to stronger power in outside wall surface near lower flange 110 places of body portion 102, because this part is touched portion 116 and covers, so can prevent its damage.
This method is because 10 bending companion flanges 110 of blank make multiple folded structure (with reference to Fig. 2), so in the bending machining of blank 10, the resistance of companion flange 110 is effective especially under bigger occasion.
And the degree of depth L of die 520 is as about 2 times of the radius of curvature R in the knee that is set at tank body half one 50, and the state of Fig. 6 (d) is the end of its bending machining, and the parts that are not pushed in the blank 10 in the die 520 also present slightly splay open shape.Yet, in this example, because the degree of depth L of die 520 is set at more than 2.5 times of radius of curvature R in the knee of tank body half one 50, blank 10 can be advanced the position of the state of Fig. 6 (e) in the die 520 by punch 510, also promptly can effectively prevent the crooked bad phenomenon of blank 10.And, if the thought that takes place from the crooked bad phenomenon that really prevents blank 10 effectively, even the degree of depth L of die 520 would be set at radius of curvature R also passable more than 3 times in the knee of tank body half one 50.
And, can be with size and the error that adds man-hour as the changes in amplitude of contact site 116 and absorb, so, can easily fold processing (with reference to Fig. 2).
In addition, according to the tank body 100 that said method produces, because lower flange 110 is made into the double-layer folding curved configuration, its rigidity is enhanced, a part that is added to the external force on the lower flange 110 is simultaneously born by body portion 102 again by contact site 116, and the intensity of lower flange 110 also is enhanced.So, can prevent with burning bucket rivet tightly combine in the distortion of lower flange 110, the sealing between guaranteeing tank body 100 again and burning barrel.
In addition, because the end end of overlapping flange portion 114 is bent to form banded contact site 116 (with reference to Fig. 2), increase with respect to the contact area of body portion 102, the intensity of lower flange 110 also can further improve thereupon.
In addition, because of contact site 116 is in the outside wall surface side (with reference to Fig. 2) of body portion 102,, thereby improved the durability of tank body 100 even gapped generation does not have seeping phenomenon yet and takes place between body portion 102 and contact site 116.In addition, be incorporated into body portion 102 by making contact site 16, the intensity of lower flange 110 also can get a qualitative improvement.
In addition, in this example, for adopting 2 dies of cutting apart 520 (with reference to Fig. 6) in the turning, two places of corresponding tank body half one 50, still, as other example, even adopt the single die (diagram is slightly) of U font also passable.
In addition, in this example, as shown in Figure 2, though overlapping flange portion 114 is folded on the face of body portion 102 1 sides of crooked flange portion 112, the end end of overlapping flange portion 114 is crooked and form contact site 116 along the outside wall surface of body portion 102, but, as other example, as shown in Figure 8, also can adopt overlapping flange portion 114 to be folded on the face with body portion 102 opposition sides of crooked flange portion 112, the end end of overlapping flange portion 114 is crooked and form contact site 116 along the internal face of body portion 102.In addition, as other example, as shown in Figure 9, also can adopt overlapping flange portion 114 to be folded to contiguously with it on the face of body portion 102 1 sides of crooked flange portion 112, and, the end end of overlapping flange portion 114 is bent on the outside wall surface of body portion 102 with it contiguously, and the end of overlapping flange portion 114 end forms contact site 116.
In Fig. 8, arbitrary example shown in Figure 9, when improving its rigidity for the double-layer folding curved configuration by employing lower flange 110, a part that is applied to the external force on the lower flange 110 is born by body portion 102 again by contact site 116, and the intensity of lower flange 110 is enhanced.So, can prevent with burning bucket rivet tightly combine in the distortion of lower flange 110, the sealing between guaranteeing tank body 100 again and burning barrel.
In addition, in this example, though have only lower flange 110 to adopt the double-layer folding curved configuration,, as other example, upper flange 120 also can similarly adopt the double-layer folding curved configuration with lower flange 110, saves flanged plate 130.In addition, as other example, also can adopt have more than 2 pieces in overlapping flange portion 114 in the overlapping flange portion 112 be folded, the folding curved configuration more than three layers (diagram slightly).
Claims (6)
1. heat exchanger tank body, ora terminalis companion flange bending, that engage with housing with body portion and body portion, it is characterized in that, companion flange makes the structure that has the crooked flange portion that is connected with body portion and be overlapped in the multilayer folding bending of the overlapping flange portion in the crooked flange portion, forms a contact site with respect to body portion in overlapping flange portion.
2. heat exchanger tank body according to claim 1 is characterized in that, described contact site is crooked and form along body portion by the end end of overlapping flange portion.
3. heat exchanger tank body according to claim 1 and 2 is characterized in that, overlapping flange portion is folded on the face of body portion side of crooked flange portion, and described contact site is contacted with the outside wall surface of body portion.
4. heat exchanger tank body according to claim 1 and 2 is characterized in that described contact site combines with body portion.
5. a heat exchanger is with the manufacture method of tank body, its method is: the lateral margin that will have the blank of the flat part that becomes body portion is bent into companion flange, the bending mould that utilization is made up of punch and die, by punch blank is pressed into die, bending machining becomes half sheet tubular and makes tank body half one, carry out combination by tank body half one with half a pair of sheet tubular, thereby has body portion, bending with the ora terminalis of body portion, the companion flange that combines with housing, it is characterized in that, when described bending machining, use have can from the plate thickness direction sandwich take in the die of the slot part of companion flange, the distortion of the slot part restriction companion flange by die.
6. heat exchanger according to claim 5 is characterized in that with the manufacture method of tank body the degree of depth L of die is set at more than 2.5 times of radius of curvature R of the corner part of tank body half one.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001295581 | 2001-09-27 | ||
| JP2001295581A JP3928843B2 (en) | 2001-09-27 | 2001-09-27 | Can for heat exchanger and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1409071A true CN1409071A (en) | 2003-04-09 |
| CN100360866C CN100360866C (en) | 2008-01-09 |
Family
ID=19116985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB02144014XA Expired - Fee Related CN100360866C (en) | 2001-09-27 | 2002-09-27 | Tank for heat exchanger and tis producing method |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP3928843B2 (en) |
| KR (1) | KR100472350B1 (en) |
| CN (1) | CN100360866C (en) |
| HK (1) | HK1054425A1 (en) |
| TW (1) | TW576909B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI412701B (en) * | 2010-12-22 | 2013-10-21 | Au Optronics Corp | Heat sinking sheet metal member and applications of the same |
| CN108160854A (en) * | 2018-01-26 | 2018-06-15 | 农百乐 | The moulding process of a kind of metal container structures and its flow-guiding mouth and apply its kettle |
| CN112673217A (en) * | 2018-09-26 | 2021-04-16 | 株式会社能率 | Water heating device |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5467037B2 (en) * | 2010-12-27 | 2014-04-09 | リンナイ株式会社 | Latent heat exchanger and hot water supply device |
| US20130264037A1 (en) * | 2010-12-27 | 2013-10-10 | Rinnai Corporation | Latent heat exchanger and water heater |
| JP5467038B2 (en) * | 2010-12-27 | 2014-04-09 | リンナイ株式会社 | Latent heat exchanger and hot water supply device |
| CN106767090A (en) * | 2016-12-07 | 2017-05-31 | 泰安福星汽车配件有限公司 | A kind of reinforced radiating tube and processing technology |
| JP7367969B2 (en) * | 2019-10-17 | 2023-10-24 | 株式会社パロマ | Water heater |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS593322Y2 (en) * | 1977-05-18 | 1984-01-30 | 松下電器産業株式会社 | gas water heater |
| US4445260A (en) * | 1980-09-15 | 1984-05-01 | Buss David L | Method of manufacture for metal trough |
| JPS61138054A (en) * | 1984-12-11 | 1986-06-25 | Matsushita Electric Ind Co Ltd | Heat exchanger |
| DE3736321C1 (en) * | 1987-10-27 | 1989-07-20 | Hans Viessmann | Boiler |
| JPH02247019A (en) * | 1989-03-17 | 1990-10-02 | Press Kogyo Kk | Press-forming method |
| JP2602758B2 (en) * | 1992-06-24 | 1997-04-23 | リンナイ株式会社 | Heater and method of coupling the same |
| FR2728814B1 (en) * | 1994-12-29 | 1997-03-28 | St Mathurin Soc Civ | PIECE OBTAINED BY FOLDING A STRIP |
| CN1162109A (en) * | 1995-05-30 | 1997-10-15 | 三电有限公司 | Heat exchanger and mfg. method thereof |
| JP3008160B2 (en) * | 1995-07-31 | 2000-02-14 | リンナイ株式会社 | Case structure of wall-mounted instrument |
| JP2000018227A (en) * | 1998-07-03 | 2000-01-18 | Hazama Gumi Ltd | Double bolt and position regulating tool |
-
2001
- 2001-09-27 JP JP2001295581A patent/JP3928843B2/en not_active Expired - Lifetime
-
2002
- 2002-06-05 TW TW091112100A patent/TW576909B/en not_active IP Right Cessation
- 2002-07-19 KR KR10-2002-0042614A patent/KR100472350B1/en not_active IP Right Cessation
- 2002-09-27 CN CNB02144014XA patent/CN100360866C/en not_active Expired - Fee Related
-
2003
- 2003-08-16 HK HK03105874A patent/HK1054425A1/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI412701B (en) * | 2010-12-22 | 2013-10-21 | Au Optronics Corp | Heat sinking sheet metal member and applications of the same |
| CN108160854A (en) * | 2018-01-26 | 2018-06-15 | 农百乐 | The moulding process of a kind of metal container structures and its flow-guiding mouth and apply its kettle |
| CN112673217A (en) * | 2018-09-26 | 2021-04-16 | 株式会社能率 | Water heating device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100360866C (en) | 2008-01-09 |
| KR20030027654A (en) | 2003-04-07 |
| KR100472350B1 (en) | 2005-03-08 |
| JP2003106679A (en) | 2003-04-09 |
| HK1054425A1 (en) | 2003-11-28 |
| JP3928843B2 (en) | 2007-06-13 |
| TW576909B (en) | 2004-02-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100510608C (en) | Heat exchanger | |
| US4813691A (en) | Unitized multi-layered gasket and method of making same | |
| CN1409071A (en) | Tank for heat exchanger and tis producing method | |
| JP5733900B2 (en) | Manufacturing method of plate heat exchanger and plate heat exchanger | |
| CN1160188A (en) | Heat exchanger collecting tray, its making method and heat exchanger provided with same | |
| CN1136053C (en) | Process for manufacturing a honeycombed body from at least partially stratified sheet metal layers | |
| JP2949424B2 (en) | Metal plate gasket seal structure | |
| DE10024389A1 (en) | Exhaust gas heat exchanger has pairs of laminating plates each with protruding circumferential parts overlapping one another in laminating direction and connected by welding | |
| CN1147623A (en) | U shaped circulation tube for heat exchanger and its producing method | |
| JP5280302B2 (en) | Vacuum insulation panel and method for manufacturing the same | |
| JP2009192174A (en) | Manufacturing method of heat exchanger, and heat exchanger | |
| JP2000329488A (en) | Flat tube for heat exchanger | |
| KR100958733B1 (en) | Multilayer roll forming sheet for a heat protector and manufacturing method thereof | |
| US6971444B2 (en) | Heat exchanger construction and method | |
| US20200116432A1 (en) | Channel fin heat exchangers and methods of manufacturing the same | |
| JP4699736B2 (en) | Method for winding plate members | |
| CN106767090A (en) | A kind of reinforced radiating tube and processing technology | |
| CN109454415B (en) | Method for processing buckle type pipe fitting | |
| EP1186769A4 (en) | Intake manifold for internal combustion engine | |
| JP4324912B2 (en) | Heat exchanger header manufacturing method and heat exchanger header | |
| CN221169765U (en) | Cylinder head gasket, engine, hybrid assembly and vehicle | |
| CN1205074A (en) | Heat exchanger and method of manufacturing thereof | |
| JP3452304B2 (en) | Muffler outer cylinder structure | |
| TW200900642A (en) | Heat-collecting sheet and manufacturing method thereof | |
| JP2004042061A (en) | Aluminum alloy plate member having hem part |
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 | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: GR Ref document number: 1054425 Country of ref document: HK |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080109 Termination date: 20140927 |
|
| EXPY | Termination of patent right or utility model |