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1. EP2521798 - A METHOD OF INCREASING HEAT EXCHANGE SURFACES OF ELEMENTS MADE OF METAL OR METAL ALLOYS

Office European Patent Office
Application Number 10740026
Application Date 02.07.2010
Publication Number 2521798
Publication Date 14.11.2012
Publication Kind B8
IPC
C21D 1/04
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS
1General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
04with simultaneous application of supersonic waves, magnetic or electric fields
B23K 26/00
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
C21D 8/10
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS
8Modifying the physical properties by deformation combined with, or followed by, heat treatment
10during manufacturing of tubular bodies
C21D 9/08
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS
9Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
08for tubular bodies or pipes
F28F 1/10
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
FDETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
1Tubular elements; Assemblies of tubular elements
10Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
F28F 1/12
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
FDETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
1Tubular elements; Assemblies of tubular elements
10Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
12the means being only outside the tubular element
CPC
B23K 26/3584
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
352for surface treatment
3568Modifying rugosity
3584Increasing rugosity, e.g. roughening
B23K 2101/14
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
2101Articles made by soldering, welding or cutting
04Tubular or hollow articles
14Heat exchangers
C21D 1/04
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHER TREATMENTS
1General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
04with simultaneous application of supersonic waves, magnetic or electric fields
C21D 1/09
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHER TREATMENTS
1General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
06Surface hardening
09by direct application of electrical or wave energy; by particle radiation
C21D 8/10
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHER TREATMENTS
8Modifying the physical properties by deformation combined with, or followed by, heat treatment
10during manufacturing of tubular bodies
C21D 9/08
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHER TREATMENTS
9Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
08for tubular bodies or pipes
Applicants POLITECHNIKA SWIETOKRZYSKA
Inventors GRABAS BOGUSLAW
Designated States
Priority Data 38855009 15.07.2009 PL
38976909 04.12.2009 PL
Title
(DE) VERFAHREN ZUR VERGRÖSSERUNG VON WÄRMETAUSCHERFLÄCHEN VON METALL- UND METALLEGIERUNGELEMENTEN
(EN) A METHOD OF INCREASING HEAT EXCHANGE SURFACES OF ELEMENTS MADE OF METAL OR METAL ALLOYS
(FR) PROCÉDÉ D'AUGMENTATION DES SURFACES D'ÉCHANGE DE CHALEUR D'ÉLÉMENTS MÉTALLIQUES OU EN ALLIAGES MÉTALLIQUES
Abstract
(EN)
The unique character of the method of remelting of a surface in the presence of a steam channel is related to the fact that during the remelting process a processed element is subject to vibrations. The vibrations parameters are uniform at any given point of the remelted element. The element surface remelting method is unique since the process is performed at a temperature below the ebullition temperature and during the remelting process the element being processed is subject to vibrations. The surface is remelted using a laser or electron beam.

(FR)
Le caractère unique du procédé de refusion d'une surface en présence d'un canal de vapeur d'eau est correlé au fait que, pendant le procédé de refusion, un élément traité est soumis à des vibrations. Les paramètres des vibrations sont uniformes à n'importe que point donné de l'élément refondu. Le procédé de refusion de la surface de l'élément est unique étant donné que le procédé est effectué à une température au-dessous de la température d'ébullition et pendant le procédé de refusion, l'élément qui est traité est soumis à des vibrations. La surface est refondue à l'aide d'un faisceau laser ou électronique.

Also published as
UAa201015688