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EP1022361A3 - Process for cleaning metals after their thermal treatment - Google Patents

Process for cleaning metals after their thermal treatment Download PDF

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Publication number
EP1022361A3
EP1022361A3 EP99125871A EP99125871A EP1022361A3 EP 1022361 A3 EP1022361 A3 EP 1022361A3 EP 99125871 A EP99125871 A EP 99125871A EP 99125871 A EP99125871 A EP 99125871A EP 1022361 A3 EP1022361 A3 EP 1022361A3
Authority
EP
European Patent Office
Prior art keywords
beak
insulating material
stopper
fabric
felt
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
Application number
EP99125871A
Other languages
German (de)
French (fr)
Other versions
EP1022361B1 (en
EP1022361A2 (en
Inventor
Stefano Muratori
Michele Lapelosa
Alessandro Alboni
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.)
EDK Research AG
Original Assignee
EDK Research AG
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 IT95MO000156A external-priority patent/ITMO950156A1/en
Application filed by EDK Research AG filed Critical EDK Research AG
Publication of EP1022361A2 publication Critical patent/EP1022361A2/en
Publication of EP1022361A3 publication Critical patent/EP1022361A3/en
Application granted granted Critical
Publication of EP1022361B1 publication Critical patent/EP1022361B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F7/00—Constructional parts, or assemblies thereof, of cells for electrolytic removal of material from objects; Servicing or operating

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Engineering & Computer Science (AREA)
  • Cleaning In General (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Cleaning Or Drying Semiconductors (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Inorganic Insulating Materials (AREA)

Abstract

Die Vorrichtung zur Reinigung von Metallen besteht aus einem Propfen (12, 34, 91) aus Isoliermaterial, der zwischen die Elektrode (10, 26, 46) mit Schnabelform (11, 52, 94) und das zu reinigende Metall (8) gebracht wird, sowie aus einer Wechselstromquelle (2) mit Niederspannung, die auch mit der anderen Elektrode an das Metall (7) angeschlossen ist; eine Pumpe versorgt den obengenannten Stopfen mit einer hochdichten und sehr aggressiven sauren Lösung; der Stopfen besteht aus einem relativ dicken Strumpf oder Band. Die Vorrichtung ist mit Schlitzen (36) ausgestattet, über die die bei der Bearbeitung entstehenden Gase und Dämpfe mittels eines Sauglüfters (40) abgesogen und anschließend zwecks Abscheidung durch einem Feuchtfilter (41) geleitet werden. Es sind verschiedene Schnabelformen vorgesehen, und es besteht die Möglichkeit, die Schnabelenden (28, 94, 98) auszuwechseln. Der Schnabel ist vorzugsweise mit Bohrungen ausgeführt, durch die die saure Lösung geleitet wird. Der Körper des Schnabels (97) und das auswechselbare Ende (94, 98) können mit einem Film (101, 100) aus Isoliermaterial beschichtet sein, der sie vor unerwünschten Kurzschlüssen schützt und der die elektrolytische Aktion an der Endfläche (102) des Schnabels konzentriert. Als Isoliermaterial für den Stopfen sollte vorzugsweise Gewebe oder Filz aus Polyetheretherketon gewählt werden. Die höchste Lebensdauer und die größten Arbeitsmengen lassen sich erreichen, indem ein Doppelschichtstopfen (92, 93) verwendet wird, dessen innere Schicht aus Gewebe (92) und dessen äußere Schicht aus Filz (93) besteht.

Figure 00000001
The device for cleaning metals consists of a plug (12, 34, 91) made of insulating material, which is placed between the electrode (10, 26, 46) with a beak shape (11, 52, 94) and the metal (8) to be cleaned , and from an alternating current source (2) with low voltage, which is also connected to the metal (7) with the other electrode; a pump supplies the above-mentioned stopper with a high-density and very aggressive acidic solution; the stopper consists of a relatively thick stocking or band. The device is equipped with slots (36) through which the gases and vapors produced during processing are drawn off by means of a suction fan (40) and then passed through a moisture filter (41) for separation. Different beak shapes are provided and there is the possibility of exchanging the beak ends (28, 94, 98). The beak is preferably made with holes through which the acidic solution is passed. The body of the beak (97) and the replaceable end (94, 98) can be coated with a film (101, 100) of insulating material which protects them from undesired short circuits and which concentrates the electrolytic action on the end face (102) of the beak . Fabric or felt made of polyether ether ketone should preferably be selected as the insulating material for the stopper. The greatest service life and the greatest amount of work can be achieved by using a double-layer plug (92, 93), the inner layer of which is made of fabric (92) and the outer layer of which is made of felt (93).
Figure 00000001
EP99125871A 1995-09-27 1996-08-27 Process for cleaning metals after their thermal treatment Expired - Lifetime EP1022361B1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
ITMO950131 1995-09-27
IT000131 IT1279857B1 (en) 1995-09-27 1995-09-27 Appts. for cleaning metals which have been subjected to high-temperature processes - incorporating an acid-impregnated insulating pad which is made of polyether ether ketone fabric, and is located between the electrode and the metal undergoing cleaning
ITMO950156 1995-11-10
IT95MO000156A ITMO950156A1 (en) 1995-11-10 1995-11-10 ENDS IN INSULATING MATERIAL OF ELECTRODES FOR ELECTROLYTIC CLEANING
EP96930346A EP0852629B1 (en) 1995-09-27 1996-08-27 Device for cleaning metal surfaces after they have been worked at high temperatures

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP96930346A Division EP0852629B1 (en) 1995-09-27 1996-08-27 Device for cleaning metal surfaces after they have been worked at high temperatures

Publications (3)

Publication Number Publication Date
EP1022361A2 EP1022361A2 (en) 2000-07-26
EP1022361A3 true EP1022361A3 (en) 2000-11-29
EP1022361B1 EP1022361B1 (en) 2006-06-21

Family

ID=26331733

Family Applications (2)

Application Number Title Priority Date Filing Date
EP96930346A Expired - Lifetime EP0852629B1 (en) 1995-09-27 1996-08-27 Device for cleaning metal surfaces after they have been worked at high temperatures
EP99125871A Expired - Lifetime EP1022361B1 (en) 1995-09-27 1996-08-27 Process for cleaning metals after their thermal treatment

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP96930346A Expired - Lifetime EP0852629B1 (en) 1995-09-27 1996-08-27 Device for cleaning metal surfaces after they have been worked at high temperatures

Country Status (11)

Country Link
US (1) US5964990A (en)
EP (2) EP0852629B1 (en)
JP (1) JP3160603B2 (en)
CN (1) CN1067121C (en)
AT (2) ATE331056T1 (en)
AU (1) AU6942996A (en)
CA (1) CA2232571C (en)
DE (2) DE59611360D1 (en)
ES (1) ES2153126T3 (en)
IT (1) IT1279857B1 (en)
WO (1) WO1997012081A1 (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT411693B (en) * 2002-07-01 2004-04-26 Fronius Int Gmbh ELECTROCHEMICAL METHOD FOR CLEANING SURFACES OF METAL WORKPIECES
IT1311147B1 (en) * 1999-11-04 2002-03-04 Edk Res Ag CLEANING MACHINE LOCALIZED WITH CELL, ELECTROLYTIC AND / OR ADULTRASONIC, PICKLING AND / OR POLISHING
NL1015106C2 (en) * 2000-05-03 2001-11-06 Jos Klomp Metaalbewerking B V Removal of stains from stainless steel workpieces involves contacting stained area with applicator containing acid solution and creating electrical circuit between the workpiece and solution
US20050230267A1 (en) * 2003-07-10 2005-10-20 Veatch Bradley D Electro-decontamination of contaminated surfaces
WO2005038096A1 (en) * 2003-10-21 2005-04-28 Edk Research Ag Electrode device with integrated electrolyte supply for the surface treatment of metals
US7138066B2 (en) * 2004-12-16 2006-11-21 Gm Global Technology Operations, Inc. Gear surface treatment procedure
ES2310331T3 (en) * 2005-02-04 2009-01-01 Edk Research Ag DEVICE FOR METALLIC ELECTROLYTIC SURFACE WORK.
WO2009105802A1 (en) * 2008-02-25 2009-09-03 Metal Science Technologies Pty Ltd Improvements in electropolishing apparatus
US8662782B2 (en) * 2008-09-26 2014-03-04 Bissell Homecare, Inc. Surface cleaning device with a bleach generator
ITPG20090008A1 (en) * 2009-03-09 2010-09-10 Crimo Italia Srl MACHINE FOR PICKLING, PASSIVATION AND CLEANING BY ELECTROLYTIC OF METALLIC SURFACES.
ITMO20110234A1 (en) * 2011-09-16 2013-03-17 Edk S R L PORTABLE APPARATUS FOR ELECTROLYTIC ACTION TREATMENTS ON METALLIC SURFACES
JP2013082982A (en) * 2011-10-12 2013-05-09 Ishikame Kogyo:Kk Composition used for removing weld burning on surface of stainless workpiece, and method for removing weld burning
CN102605415A (en) * 2012-03-02 2012-07-25 迅力光能（昆山）有限公司 Writing type conductor surface electrochemical etching method and device thereof
CN102628176A (en) * 2012-04-21 2012-08-08 广东白云国际科学研究院有限公司 Electrolyte capable of removing nuclear pollution and movable cathode electrochemical cleaning device
JP5914265B2 (en) * 2012-08-31 2016-05-11 株式会社タセト Electrolyte
CN103737131B (en) * 2014-01-22 2017-01-18 西安工业大学 Composite cathode of closed whole component flow channel
US10344394B1 (en) * 2014-12-05 2019-07-09 Jay Olson System and method of electrochemical cleaning of metal discoloration
SG11201810037SA (en) * 2016-05-11 2018-12-28 Ensitech Ip Pty Ltd Electrolytic brush assembly
CN107326431A (en) * 2017-07-19 2017-11-07 江门市保值久机电有限公司 The welding bead cleaner of automatic electrolyte
JP6761829B2 (en) * 2018-03-19 2020-09-30 公益財団法人鉄道総合技術研究所 Superconducting cable
US11926916B2 (en) * 2019-11-05 2024-03-12 Wisys Technology Foundation, Inc. Color controlled metal finishing pen
GB2601550B (en) * 2020-12-04 2024-11-20 Texture Jet Ltd A nozzle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4206028A (en) * 1976-12-14 1980-06-03 Inoue-Japax Research Incorporated Electrochemical polishing system
DE8513410U1 (en) * 1985-05-07 1985-11-07 Laidemitt, Klaus-Dieter, 5090 Leverkusen Device for removing discolouration in the area of welds on metal workpieces, in particular made of stainless steels
US4609450A (en) * 1985-03-26 1986-09-02 Agency Of Industrial Science And Technology Combined electrolytic-abrasive polishing apparatus

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3865697A (en) * 1973-05-25 1975-02-11 Robert Suggs Platinum plating process
FI802444A (en) * 1980-08-05 1982-02-06 Outokumpu Oy APPARAT FOER ELEKTROLYTISK POLERING
US4495045A (en) * 1984-03-13 1985-01-22 Jackson Thomas R Electrolytic dental etching apparatus
JP2831713B2 (en) * 1988-08-19 1998-12-02 マルイ鍍金工業株式会社 Brushes for electrolytic treatment
US4882019A (en) * 1988-11-21 1989-11-21 Lewy Michael M Apparatus and method for polishing a plumbing or electrical fixture
US5401369A (en) * 1994-01-21 1995-03-28 Gershin; Mircea-Mike Electroplating pen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4206028A (en) * 1976-12-14 1980-06-03 Inoue-Japax Research Incorporated Electrochemical polishing system
US4609450A (en) * 1985-03-26 1986-09-02 Agency Of Industrial Science And Technology Combined electrolytic-abrasive polishing apparatus
DE8513410U1 (en) * 1985-05-07 1985-11-07 Laidemitt, Klaus-Dieter, 5090 Leverkusen Device for removing discolouration in the area of welds on metal workpieces, in particular made of stainless steels

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS, vol. 121, no. 8, 22 August 1994, Columbus, Ohio, US; abstract no. 94464, LINKOUS, CLOVIS A. ET AL: "Water electrolysis at elevated temperature using ionomer membranes" XP002017761 *
FRONT. SCI. SER. (1993), 7(NEW ENERGY SYSTEMS AND CONVERSIONS), 257-9 CODEN: FCFUEO, 1993 *

Also Published As

Publication number Publication date
EP0852629A1 (en) 1998-07-15
WO1997012081A1 (en) 1997-04-03
ITMO950131A0 (en) 1995-09-27
ES2153126T3 (en) 2001-02-16
JP3160603B2 (en) 2001-04-25
ITMO950131A1 (en) 1997-03-27
ATE331056T1 (en) 2006-07-15
CN1067121C (en) 2001-06-13
JPH11511512A (en) 1999-10-05
ATE197318T1 (en) 2000-11-15
IT1279857B1 (en) 1997-12-18
CA2232571C (en) 2006-10-24
EP1022361B1 (en) 2006-06-21
CN1197487A (en) 1998-10-28
DE59611360D1 (en) 2006-08-03
DE59606100D1 (en) 2000-12-07
EP1022361A2 (en) 2000-07-26
CA2232571A1 (en) 1997-04-03
AU6942996A (en) 1997-04-17
US5964990A (en) 1999-10-12
EP0852629B1 (en) 2000-11-02

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