EP2321085A1 - Verfahren zur herstellung durch schweissen von rippenrohren auf einem in rotation versetzten rohrkörper mit gekühlten führungscheiben - Google Patents
Verfahren zur herstellung durch schweissen von rippenrohren auf einem in rotation versetzten rohrkörper mit gekühlten führungscheibenInfo
- Publication number
- EP2321085A1 EP2321085A1 EP09780102A EP09780102A EP2321085A1 EP 2321085 A1 EP2321085 A1 EP 2321085A1 EP 09780102 A EP09780102 A EP 09780102A EP 09780102 A EP09780102 A EP 09780102A EP 2321085 A1 EP2321085 A1 EP 2321085A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- welding
- tubular body
- guide discs
- release agent
- guide
- 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.)
- Withdrawn
Links
- 238000003466 welding Methods 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 23
- 239000000498 cooling water Substances 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 3
- 239000000110 cooling liquid Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 5
- 238000009835 boiling Methods 0.000 claims description 3
- 239000002826 coolant Substances 0.000 claims description 3
- 239000003995 emulsifying agent Substances 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000003381 stabilizer Substances 0.000 claims description 3
- 235000013311 vegetables Nutrition 0.000 claims description 3
- 239000012809 cooling fluid Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 4
- 239000000945 filler Substances 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000011324 bead Substances 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/02—Seam welding; Backing means; Inserts
- B23K9/032—Seam welding; Backing means; Inserts for three-dimensional seams
- B23K9/0325—Seam welding; Backing means; Inserts for three-dimensional seams helicoidal seams
-
- 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
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/22—Making finned or ribbed tubes by fixing strip or like material to tubes
- B21C37/26—Making finned or ribbed tubes by fixing strip or like material to tubes helically-ribbed tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/003—Cooling means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
- B23K37/0538—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor for rotating tubes, e.g. rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
- B23K2101/08—Tubes finned or ribbed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/14—Heat exchangers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4935—Heat exchanger or boiler making
- Y10T29/49377—Tube with heat transfer means
- Y10T29/49378—Finned tube
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4935—Heat exchanger or boiler making
- Y10T29/49377—Tube with heat transfer means
- Y10T29/49378—Finned tube
- Y10T29/49382—Helically finned
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4935—Heat exchanger or boiler making
- Y10T29/49391—Tube making or reforming
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53113—Heat exchanger
Definitions
- the invention relates to a method for producing finned tubes made of metal, in particular of heat exchanger tubes, wherein an offset into rotation tubular body tangentially fed at least one rib forming endless belt and wound on this approximately helical, the tubular body facing side of the belt by means of a welding device below Using a filler material connected to the pipe surface, the working end of the welding device is guided in the free wedge between the pipe surface and the wound tape and the wound tape is guided just behind the welding area between guide discs, which reach close to the pipe surface.
- the invention is therefore based on the object to better protect the guide discs and to increase their service life.
- this object is achieved in that the guide discs are cooled.
- Coolant can be easily applied to the
- a cooling water is used, to which a water-soluble welding release agent is added.
- the welding release agent can be added to the cooling water in an order of 10% by volume.
- weld release agent we preferably used a mixture of vegetable esters, emulsifiers and stabilizers. Not only does such a weld release agent have a very positive influence on the guide disks when using the cooling liquid, it is also biodegradable and completely non-toxic, so that it is not a burden on the operators or the environment.
- the cooling fluid is supplied to the rotating guide discs at a location remote from the weld.
- the feed point is chosen so that the water content of the cooling liquid is completely evaporated shortly before reaching the weld, so that in the critical region of the guide discs only the welding separation medium, which has a higher boiling point than water, adheres to the guide discs, so that this optimal protected against welding spatter. Due to the evaporating cooling water not only the corresponding acted upon areas of the guide discs are cooled, but it is also kept cool the not yet evaporated weld release agent, so that it begins to evaporate only in the critical area near the weld, thereby preventing not only the caking of the weld beads but causes an additional cooling effect in the region of the weld.
- the vaporized weld release agent can be sucked off behind the weld.
- FIG. 1 is a perspective view of an embodiment of the method according to the invention rens, in which the rib-forming steel strip wound in a vertical position helically on the tube body and the tubular body facing narrow side of the strip is connected by means of a weld;
- FIG. 2 shows a sectional view through that region of the finned tube in which the steel strip to be wound up impinges on the tube body, is connected to the tube body by means of the welding device and guided by means of the guide plates;
- FIG. 3 is an enlarged view of a section along the line III-III of Fig. 2.
- Fig. 4 is a section along the line IV-IV of Fig. 2;
- Fig. 5 is a section along the line V-V of Fig. 2;
- Fig. 6 is a similar section as Fig. 2 with a representation of the supply of the cooling liquid.
- the inventive method is suitable for use in different variants of the supplied tape. It is known that the steel strip to be wound, as shown in the drawing, wind up in a position perpendicular to the pipe body axis on the tubular body. For this variant, the inventive method is particularly well, since it leads to surprisingly improved results due to the heavy load on the guide discs. However, the method according to the invention is also applicable when the steel strip to be wound up in U-shape or L-shape is fed to the tube body. In these variants, guide discs are used, but they are less loaded, since they are at least partially shielded by the shape of the supplied steel strip against the existing heat in the welding area and weld spatter. Nevertheless, we also increase the service life of the guide discs in such variants.
- the heat exchanger tube 1 which is to be produced by the method according to the invention, consists of a tubular body 2, on the surface 3 of which a ribbed belt 4 to be taken from a supply roll is screwed in order to increase the heat exchange surface and with the pipe surface via a weld seam 5 is connected, but the supply roll is not shown in the drawing.
- the tubular body 2, on the surface 3, the ribbed tape 4 is to be applied, held by means of a clamping device 6, which for performing the process is set in rotation and thus rotates the tubular body 2 about its longitudinal axis.
- a welding device 7 is used to carry out the welding operation.
- the pipe body 2 seated in the clamping device 6 is guided along the welding device 7 by displacement of the clamping device 6 or the welding device 7 itself is paralleled on a carriage, not shown in the drawing
- the tubular body 2 is moved continuously.
- an electrode 8 in the free wedge between the surface 3 of the tubular body 2 and the tangentially on the tube body 2 to be wound ribbed 4.
- the electrode 8 is a consumable, endless welding wire 9 automatically feedable bar, as a welding aggregate material serves.
- the welding wire 9 is supplied to the pipe surface 3 at a distance in front of the impact area 10 of the ribbed belt 4 to be wound up.
- the welding wire melts 9 and generates on the pipe surface 3, a welding bead 11, in which the tubular body 2 facing narrow side of the ribbed belt 4 is pressed.
- 4 guide discs 12 and 13 are provided immediately above or a short distance behind the impingement region 10 of the tubular body 2 to be wound on the tubular body 2, which laterally engage over the ribbed belt 4 and hold in its aligned perpendicular to the tubular body 2 position ,
- the guide disks 12 and 13 which come close to the pipe surface 3 and to the weld 5 and rotate counter to the direction of rotation of the tubular body 2 are exposed to an extreme heat load respectively in the area located near the pipe body 2 and the weld 5. In addition, they are also exposed to weld spatters from the welding area, which, due to their high temperature, tend to adhere to the surfaces on which they strike.
- the guide disks 12, 13 are acted upon by a cooling liquid 14, which is applied to the guide disks 12, 13 by means of a spray nozzle 15, which is mounted approximately above the highest point of the guide disks 12, 13.
- the spraying takes place primarily in the outer edge area, the largest
- the cooling liquid cooling water which is a water-soluble welding release agent is mixed.
- the welding release agent is added to the cooling water in a ratio of about 10% by volume.
- a welding release agent a mixture of vegetable esters, emulsifiers and stabilizers is used. Other suitable welding agents are also possible.
- the weld release agent has a higher boiling point than water. Insofar, the water content initially evaporates and thereby cools the two guide disks 12, 13. At the same time, however, this cooling effect keeps the welding release agent cool so that it does not evaporate initially and spreads out as a protective film on the outer regions of the guide disks.
- An optimal setting of the coolant supply is such that the water content is completely evaporated just before reaching the weld, while the welding release agent remains as a protective film on the vulnerable areas of the guide discs. As a result, a very good protection of the guide discs against caking of the weld spatter is ensured, especially in the area of the weld. When entering the area of the weld, where the edges of the guide disc edges are again heated considerably, the release agent finally evaporates and produces an additional cooling effect for the guide discs.
- the vaporized release agent 16 is then subsequently sucked off behind the weld.
- an exhaust hood not shown in the drawing can be provided, which is acted upon via a suction with negative pressure.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008033449A DE102008033449B3 (de) | 2008-07-16 | 2008-07-16 | Verfahren zur Herstellung von Rippenrohren |
PCT/EP2009/058355 WO2010006930A1 (de) | 2008-07-16 | 2009-07-02 | Verfahren zur herstellung durch schweissen von rippenrohren auf einem in rotation versetzten rohrkörper mit gekühlten führungscheiben |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2321085A1 true EP2321085A1 (de) | 2011-05-18 |
Family
ID=41010210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09780102A Withdrawn EP2321085A1 (de) | 2008-07-16 | 2009-07-02 | Verfahren zur herstellung durch schweissen von rippenrohren auf einem in rotation versetzten rohrkörper mit gekühlten führungscheiben |
Country Status (9)
Country | Link |
---|---|
US (1) | US8732951B2 (de) |
EP (1) | EP2321085A1 (de) |
JP (1) | JP2011527944A (de) |
KR (1) | KR20110043668A (de) |
CN (1) | CN102099144A (de) |
CA (1) | CA2730427A1 (de) |
DE (1) | DE102008033449B3 (de) |
RU (1) | RU2477676C2 (de) |
WO (1) | WO2010006930A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102581435B (zh) * | 2012-03-19 | 2013-12-25 | 东方电气集团东方锅炉股份有限公司 | 高压加热器疏冷段中低合金钢管板的焊接工艺 |
CN102814605A (zh) * | 2012-08-03 | 2012-12-12 | 江苏海德节能科技有限公司 | 两对翅片自动向焊头供料系统 |
RU2521938C1 (ru) * | 2013-01-25 | 2014-07-10 | Открытое акционерное общество "Чепецкий механический завод" (ОАО ЧМЗ) | Способ изготовления тонкостенных труб с наружными спиральными ребрами и устройство для его осуществления |
JP6335602B2 (ja) * | 2014-04-14 | 2018-05-30 | 三菱重工業株式会社 | レーザ溶接方法 |
CN112427876B (zh) * | 2020-11-11 | 2023-03-24 | 广西天正钢结构有限公司 | 一种管材环缝焊接装置 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1085639A (en) * | 1912-01-10 | 1914-02-03 | Harlan Eskey Snodgrass | Apparatus for welding the meeting edges of metallic articles. |
US2988628A (en) * | 1957-10-03 | 1961-06-13 | Tube Prod Ltd | Manufacture of finned tube |
US3377459A (en) * | 1967-03-01 | 1968-04-09 | Brown Fintube Co | Method and apparatus for helically welding strip material |
US3776448A (en) * | 1971-01-19 | 1973-12-04 | J Fay | Apparatus for continuous production of spiral pipe |
JPS62192496A (ja) * | 1986-02-19 | 1987-08-24 | Kao Corp | アルミ用冷間圧延油組成物 |
JP2515109B2 (ja) * | 1986-10-07 | 1996-07-10 | トヨタ自動車株式会社 | 水溶性溶接スパツタ付着防止剤 |
JPS63104799A (ja) * | 1986-10-20 | 1988-05-10 | Toyota Motor Corp | スパツタ付着防止剤 |
EP0349787B1 (de) | 1988-06-08 | 1994-08-31 | Dai-Ichi Kogyo Seiyaku Co., Ltd. | Additiv für Öle zum Kaltwalzen von Metallen |
JPH02200395A (ja) * | 1989-01-27 | 1990-08-08 | Yushiro Chem Ind Co Ltd | スパッタ付着防止剤 |
JP2906291B2 (ja) * | 1991-08-03 | 1999-06-14 | ロジンク・アパラテ−ウント・アンラーゲンバウ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | フイン付管 |
JPH0847705A (ja) | 1994-08-08 | 1996-02-20 | Kawasaki Steel Corp | 金属ストリップの処理設備におけるロール手入れ方法およびその装置 |
JP2003001325A (ja) * | 2001-06-20 | 2003-01-07 | Mitsubishi Shindoh Co Ltd | 電縫管のスクイズロール清掃機構 |
RU2243870C1 (ru) * | 2003-04-23 | 2005-01-10 | ОАО "Машиностроительный завод "ЗиО-Подольск" | Способ спирального оребрения труб |
-
2008
- 2008-07-16 DE DE102008033449A patent/DE102008033449B3/de not_active Expired - Fee Related
-
2009
- 2009-07-02 JP JP2011517848A patent/JP2011527944A/ja active Pending
- 2009-07-02 CN CN2009801273732A patent/CN102099144A/zh active Pending
- 2009-07-02 US US13/054,538 patent/US8732951B2/en not_active Expired - Fee Related
- 2009-07-02 WO PCT/EP2009/058355 patent/WO2010006930A1/de active Application Filing
- 2009-07-02 EP EP09780102A patent/EP2321085A1/de not_active Withdrawn
- 2009-07-02 KR KR1020117003509A patent/KR20110043668A/ko not_active Application Discontinuation
- 2009-07-02 RU RU2011105625/02A patent/RU2477676C2/ru not_active IP Right Cessation
- 2009-07-02 CA CA2730427A patent/CA2730427A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2010006930A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP2011527944A (ja) | 2011-11-10 |
RU2477676C2 (ru) | 2013-03-20 |
KR20110043668A (ko) | 2011-04-27 |
US8732951B2 (en) | 2014-05-27 |
DE102008033449B3 (de) | 2009-11-19 |
CN102099144A (zh) | 2011-06-15 |
US20110119917A1 (en) | 2011-05-26 |
WO2010006930A1 (de) | 2010-01-21 |
CA2730427A1 (en) | 2010-01-21 |
RU2011105625A (ru) | 2012-08-27 |
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Extension state: AL BA RS |
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DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20111102 |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ROSINK APPARATE- UND ANLAGENBAU GMBH |
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Inventor name: GEORG BRUENDERMANN |
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Effective date: 20140409 |