US20120111458A1 - Method of increasing heat exchange surfaces and active surfaces of metal elements including, in particular, heat exchange surfaces - Google Patents

Method of increasing heat exchange surfaces and active surfaces of metal elements including, in particular, heat exchange surfaces Download PDF

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Publication number
US20120111458A1
US20120111458A1 US13/384,087 US201013384087A US2012111458A1 US 20120111458 A1 US20120111458 A1 US 20120111458A1 US 201013384087 A US201013384087 A US 201013384087A US 2012111458 A1 US2012111458 A1 US 2012111458A1
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US
United States
Prior art keywords
remelted
remelting
heat exchange
fact
subject
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.)
Abandoned
Application number
US13/384,087
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English (en)
Inventor
Boguslaw Grabas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Politechnika Swietokrzyska
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Politechnika Swietokrzyska
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from PL388550A external-priority patent/PL207358B1/pl
Priority claimed from PL389769A external-priority patent/PL210889B1/pl
Application filed by Politechnika Swietokrzyska filed Critical Politechnika Swietokrzyska
Assigned to POLITECHNIKA SWIETOKRZYSKA reassignment POLITECHNIKA SWIETOKRZYSKA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GRABAS, BOGUSLAW
Publication of US20120111458A1 publication Critical patent/US20120111458A1/en
Abandoned legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/04—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering with simultaneous application of supersonic waves, magnetic or electric fields
    • 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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
    • B23K26/3568—Modifying rugosity
    • B23K26/3584—Increasing rugosity, e.g. roughening
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
    • F28F13/185—Heat-exchange surfaces provided with microstructures or with porous coatings
    • 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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/06—Surface hardening
    • C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation

Definitions

  • This innovation is designed to increase heat exchange by metal elements and active surfaces thereof including, in particular, heat exchange surfaces made of metal or metal alloys.
  • Radiators and heat exchangers constitute an important part of numerous industrial devices (e.g., electronic devices, air-conditioners, nuclear reactor cooling installations) and household appliances (e.g., PCs, TV sets).
  • Appropriately prepared surfaces of radiators and heat exchangers remove heat from working units and transfer it to a cooling agent which comes into contact with these surfaces. Cooling agents can remove heat with or without a change of phase.
  • Polish patent excerpt PL201106 describes a method of increasing the heat exchange surfaces of elements made of metal or metal alloys. This method involves remelting of a surface in the presence of a steam channel created by a focused laser beam. The material is remelted by a stream of plasma or a beam of electrons. The remelting process is performed in an impulse, pulse or sustained mode. The remelting process establishes a surface and an edge, or undercuts the surface.
  • the invention is designed to increase the heat exchange surface of elements made of metal or metal alloys through remelting of a surface in the presence of a steam channel while the remelted element is subject to vibrations. Vibration parameters are equal at every point of the element.
  • the invention allows for multiplication of a heat exchange surface in a single operation.
  • This invention increases the active surface including, in particular, the heat exchange surface of elements made of metal or metal alloys, through remelting of a surface in a temperature below an ebullition temperature. At the same time the remelted element is subject to vibrations.
  • the invention allows for a several-fold increase of an active surface, including the heat exchange surface, as a result of a single operation.
  • the invention facilitates performance of the process in temperatures below the ebullition temperature of the material used to manufacture the processed element, preventing creation of a steam channel.
  • the process is called conductive remelting or conductive welding when it is used to metalurgically bond materials. Remelting areas are relatively shallow with evenly distributed depth. This method allows, for example, the remelting of a single side of an element with thin walls without risk of accidentally creating an unwanted remelting edge or discontinuation of the material.
  • FIG. 1 presents a top view of a surface remelted with vibration
  • FIG. 2 an enlarged fragment of a shape of remelting surface edge along A-A line with FIG. 1 ,
  • FIG. 3 a cross-section of a surface remelted with vibrations
  • FIG. 4 cross-section B-B with FIG. 3 ,
  • FIG. 5 an enlarged fragment of a remelted surface edge
  • FIG. 6 a cross-section of a surface remelted with vibration with different vibration parameters and laser beam characteristics than those presented in FIGS. 3 and 4 ,
  • FIG. 7 cross-section C-C with FIG. 6 .
  • FIG. 8 an enlarged fragment of a shape of remelted surface edge along A-A line on FIG. 1 for beam movement speed of 2000 mm/min and vibration frequency of 105 Hz,
  • FIG. 9 an enlarged fragment of a shape of remelted surface edge for beam movement speed of 2600 mm/min and vibration frequency of 110 Hz
  • FIG. 10 an enlarged fragment of a shape of remelted surface edge for beam movement speed of 2000 mm/min and vibration frequency of 110 Hz
  • FIG. 11 an enlarged fragment of a shape of remelted surface edge for beam movement speed of 1500 mm/min and vibration frequency of 80 Hz
  • FIG. 13 an enlarged fragment of a shape of remelting edge on a surface remelted without vibration.
  • FIG. 1 presents a general top view of a surface remelted with circular vibration in a plane parallel to the remelted surface.
  • the result of this remelting process is characterized by a structure of consecutive elevations 1 and recesses 2 creating a shape resembling an arch.
  • Remelting parameters laser power 3000 W and beam movement speed of 1500 mm/min.
  • the shape of the edge of the remelted surface is presented in FIG. 2 .
  • the shape of the edge of the remelted surface is presented on FIG. 5 .
  • FIG. 13 presents a remelted element made of C45 steel which was not subject to vibration.
  • Remelting parameters laser power 3000 W and laser beam movement speed of 1500 mm/min.
  • the shape of the edge of the remelted surface is presented in FIG. 9 .
  • Remelting parameters laser power 2000 W and beam movement speed of 2000 mm/min.
  • Remelting parameters laser power 1500 W and beam movement speed of 1500 mm/min.
  • FIG. 12 presents a remelted element made of OH18N9T steel which was not subject to vibration.
  • Remelting parameters laser power 1500 W and laser beam movement speed of 1500 mm/min.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Laser Beam Processing (AREA)
US13/384,087 2009-07-15 2010-07-02 Method of increasing heat exchange surfaces and active surfaces of metal elements including, in particular, heat exchange surfaces Abandoned US20120111458A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
PL388550A PL207358B1 (pl) 2009-07-15 2009-07-15 Sposób zwiększania powierzchni wymiany ciepła elementów metalowych
PLPL388550 2009-07-15
PL389769A PL210889B1 (pl) 2009-12-04 2009-12-04 Sposób zwiększania powierzchni czynnej elementów metalowych, zwłaszcza powierzchni wymiany ciepła elementów metalowych
PL389769 2009-12-04
PCT/PL2010/000054 WO2011008114A1 (en) 2009-07-15 2010-07-02 A method of increasing heat exchange surfaces and active surfaces of metal elements including, in particular, heat exchange surfaces

Publications (1)

Publication Number Publication Date
US20120111458A1 true US20120111458A1 (en) 2012-05-10

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US13/384,087 Abandoned US20120111458A1 (en) 2009-07-15 2010-07-02 Method of increasing heat exchange surfaces and active surfaces of metal elements including, in particular, heat exchange surfaces

Country Status (5)

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US (1) US20120111458A1 (de)
EP (1) EP2521798B8 (de)
ES (1) ES2531555T3 (de)
PL (1) PL2521798T3 (de)
WO (1) WO2011008114A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015000679A1 (de) * 2013-07-05 2015-01-08 Mahle International Gmbh Gebautes hohlventil
US20210102613A1 (en) * 2019-10-03 2021-04-08 Tsubakimoto Chain Co. Rotating member and forming method thereof

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013214518A1 (de) * 2013-07-25 2015-01-29 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Wärmeübertrager und Verfahren zu dessen Herstellung und Verwendung
EP3943278A4 (de) * 2019-05-10 2023-01-25 Showa Denko Materials Co., Ltd. Verbindungselement aus metall und verbindungskörper
CN114682922B (zh) * 2022-03-08 2023-03-21 江苏大学 一种激光刻蚀制备铝合金超疏水表面应力与织构形貌调控方法

Citations (8)

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US3287107A (en) * 1960-08-22 1966-11-22 Ass Elect Ind Electron beam furnaces
JPS58179575A (ja) * 1982-04-12 1983-10-20 Hitachi Zosen Corp 高清浄度表面処理法
US4644126A (en) * 1984-12-14 1987-02-17 Ford Motor Company Method for producing parallel-sided melt zone with high energy beam
US4832982A (en) * 1986-12-08 1989-05-23 Toyota Jidosha Kabushiki Kaisha Laser process for forming dispersion alloy layer from powder on metallic base
US5114499A (en) * 1990-03-05 1992-05-19 Mazda Motor Corporation Method of forming chilled layer
US6215093B1 (en) * 1996-12-02 2001-04-10 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Selective laser sintering at melting temperature
US20010003697A1 (en) * 1996-03-15 2001-06-14 Howard Timothy Jennings Laser machining
US20030150842A1 (en) * 2001-02-19 2003-08-14 Kazuhisa Mikame Laser processing device and laser processing method

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US3622403A (en) * 1968-10-22 1971-11-23 Noranda Metal Ind Production of metal tubing with rough inner surfaces
PL105443B1 (pl) 1977-09-27 1979-10-31 Akad Rolnicza Urzadzenie do kielkowania nasion
US4232728A (en) * 1979-02-26 1980-11-11 Union Carbide Corporation Method for enhanced heat transfer
JPS61194166A (ja) * 1985-02-20 1986-08-28 Honda Motor Co Ltd 再溶融硬化処理方法
EP0280671B1 (de) * 1987-02-23 1993-06-23 CENTRE DE RECHERCHES METALLURGIQUES CENTRUM VOOR RESEARCH IN DE METALLURGIE Association sans but lucratif Verfahren zur Oberflächenmarkierung von Walzwerkswalzen
DE59407137D1 (de) * 1994-03-28 1998-11-26 Inpro Innovations Gmbh Verfahren zur Überwachung der Einschweisstiefe in Werkstücken beim Laserstrahlschweissen
DE102006036151A1 (de) * 2006-07-31 2008-02-14 Gehring Gmbh & Co. Kg Verfahren zur Oberflächenbearbeitung eines Werkstückes mit einer tribologisch beanspruchbaren Fläche
PL201106B1 (pl) * 2007-07-19 2009-03-31 Politechnika Swietokrzyska Sposób zwiększania powierzchni wymiany ciepła elementów metalowych

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3287107A (en) * 1960-08-22 1966-11-22 Ass Elect Ind Electron beam furnaces
JPS58179575A (ja) * 1982-04-12 1983-10-20 Hitachi Zosen Corp 高清浄度表面処理法
US4644126A (en) * 1984-12-14 1987-02-17 Ford Motor Company Method for producing parallel-sided melt zone with high energy beam
US4832982A (en) * 1986-12-08 1989-05-23 Toyota Jidosha Kabushiki Kaisha Laser process for forming dispersion alloy layer from powder on metallic base
US5114499A (en) * 1990-03-05 1992-05-19 Mazda Motor Corporation Method of forming chilled layer
US20010003697A1 (en) * 1996-03-15 2001-06-14 Howard Timothy Jennings Laser machining
US6215093B1 (en) * 1996-12-02 2001-04-10 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Selective laser sintering at melting temperature
US20030150842A1 (en) * 2001-02-19 2003-08-14 Kazuhisa Mikame Laser processing device and laser processing method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015000679A1 (de) * 2013-07-05 2015-01-08 Mahle International Gmbh Gebautes hohlventil
US20210102613A1 (en) * 2019-10-03 2021-04-08 Tsubakimoto Chain Co. Rotating member and forming method thereof

Also Published As

Publication number Publication date
EP2521798A1 (de) 2012-11-14
EP2521798B8 (de) 2015-02-25
WO2011008114A1 (en) 2011-01-20
ES2531555T3 (es) 2015-03-17
EP2521798B1 (de) 2014-11-26
PL2521798T3 (pl) 2015-04-30

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AS Assignment

Owner name: POLITECHNIKA SWIETOKRZYSKA, POLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:GRABAS, BOGUSLAW;REEL/FRAME:027830/0414

Effective date: 20120111

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION