EP0951951B1 - Procédé de nettoyage d'une pièce métallique - Google Patents

Procédé de nettoyage d'une pièce métallique Download PDF

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Publication number
EP0951951B1
EP0951951B1 EP98400959A EP98400959A EP0951951B1 EP 0951951 B1 EP0951951 B1 EP 0951951B1 EP 98400959 A EP98400959 A EP 98400959A EP 98400959 A EP98400959 A EP 98400959A EP 0951951 B1 EP0951951 B1 EP 0951951B1
Authority
EP
European Patent Office
Prior art keywords
vibration
fluid
sources
cleaning
contact
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.)
Expired - Lifetime
Application number
EP98400959A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0951951A1 (fr
Inventor
Alain Scotto
Jean Louis Janin
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.)
Forward Technology Industries
Original Assignee
Forward Technology Industries
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 to FR9613139A priority Critical patent/FR2755038B1/fr
Priority to ES98400959T priority patent/ES2209077T3/es
Priority to AT98400959T priority patent/ATE250988T1/de
Priority to EP98400959A priority patent/EP0951951B1/fr
Priority to DE69818637T priority patent/DE69818637T2/de
Application filed by Forward Technology Industries filed Critical Forward Technology Industries
Priority to CA002235425A priority patent/CA2235425A1/fr
Priority to US09/066,939 priority patent/US6017398A/en
Publication of EP0951951A1 publication Critical patent/EP0951951A1/fr
Application granted granted Critical
Publication of EP0951951B1 publication Critical patent/EP0951951B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
    • B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations

Definitions

  • the present invention relates to a method of cleaning and a device for implementing this method, this method used to extract foreign bodies (dust, sand, material residue ...) and dirt inside the enclosures rigid rigid whose complex and sinuous shape does not allow easy access to the areas to be cleaned. It aims more particularly a method of cleaning metal parts advantageously intended for the automotive industry or aeronautics, such as gearbox casings, engine cylinder heads, pump casings or any other part.
  • shot blasting techniques may deteriorate the piece and furthermore the shot cannot reach the ends ducts of small cross-section, which are numerous in an engine cylinder head for example.
  • the present invention therefore aims to overcome these drawbacks by offering an operating mode of an industrial cleaning process by vibration which provides excellent performance even within infructuosities of a massive piece of foundry.
  • the device for the implementation of the process which is the subject of the invention is characterized by what it includes a cavity positioned on an integral table of a machine frame, this cavity being provided with a support elastic on which the part to be treated rests, the whole immersed in a fluid which can if necessary be put in circulation by a pump connected to the cavity, the frame further supporting at least one vibration generator at the contact of said part making it possible to excite at least one mode own of the latter.
  • a cleaning fluid 8 in particular a liquid
  • the cavity 5 rests on a table 4 secured to a frame 1 of machine and comprises an elastic support 6 on which the room 7 to be cleaned.
  • the support must be elastic enough to avoid too much inertia reflection high on vibration generators 2, 3. Too large flexibility of the support 6 destroys the resonance of the part 7. It is sometimes necessary in order to increase the effectiveness of the incident wave, to create a reverberation by the addition, between the part 7 and the elastic support 6, an anvil of reaction (cf. figure 2) composed of a plurality of studs metal 15, 16, tuned to the incident frequency of the source or on a natural frequency of the part, these studs can be interconnected by a piece 17 of mass determined by experience.
  • Part 7 must be oriented so that the conduits or the cavities to be cleaned remain free ends (see figure 3) in relation to the action points of the sources (2, 3) or of reaction of the studs (15, 16).
  • the elastic support 6 is replaced by an actuator 14 which we can control movements.
  • these vibration generators 2, 3 are ultrasonic heads, commonly called sonotrode, ultrasound being produced by a vibrating element driven by a piezoelectric system or by a magneto-restrictive device.
  • Hammers or vibration generators operate from preferably at a frequency between 15 and 40 kHz.
  • These heads 2, 3 are carried by the frame 1 of the machine and converge using a plurality of actuators 14 produced at from pneumatic, hydraulic, mechanical or such as cylinders or motors, towards the part 7 along axes which are not necessarily parallel.
  • the sonotrodes are applied in contact with the part 7 in action points determined experimentally, so that bring the piece, by hammering, in a proper mode of resonance.
  • the resonance mode of room 7 is all the more quickly reached that we combine the action of the generators of vibration 2, 3 and the contact forces under the pressure of actuators integral with the generators.
  • the resonance of the part 7 gives birth to a setting cavitation of the fluid 8 in which the part 7 is bathed, and all specially the fluid cavitation 8 also spreads to the within small cross-sections and the interstices present in the room.
  • the fluid in turbulent regime (- this fluid may be present in the form of a liquid or gaseous fluid) during its phase of cleaning, which at the start is not polluted, will be charged as and as residues which will act as an abrasive body, further improving the efficiency of cleaning.
  • a pump 9 fitted with a suitable filter 10 on the fluid circuit
  • the container 5 receiving the part 7 being further provided with an inlet 11 and an outlet 12 for this fluid, respectively connected to the ends of the line 13 supporting the pump 9 and the filter 10.
  • the pump 9 operates intermittently during recycling of the fluid 8 to maintain an optimum concentration of residue, only a fraction of the dirt being stopped by the filter 10.
  • the fluid may include all or part of a solvent or a Laundry.
  • the volume of fluid may be limited to only conduits or cavities to be cleaned by imprisonment or by controlled traffic.
  • a third method we control the intensity of the shocks applied to the part to be vibrated by a speed control or in acceleration of the alternative displacement of the source vibration, independently of the vibration regime of the face of work of this source through the actuator 14.
  • the vibration frequency is modulated the source by amplitude modulation of the signal electric supplied to the piezoelectric or magnetostrictive system under the effect of a periodic signal of lower frequency.
  • a vibration source having a very wide bandwidth it is possible to modulate in frequency in limits of this band.

Landscapes

  • Cleaning By Liquid Or Steam (AREA)
  • Cleaning In General (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
EP98400959A 1996-10-28 1998-04-17 Procédé de nettoyage d'une pièce métallique Expired - Lifetime EP0951951B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR9613139A FR2755038B1 (fr) 1996-10-28 1996-10-28 Procede de nettoyage de pieces metalliques
AT98400959T ATE250988T1 (de) 1996-10-28 1998-04-17 Verfahren zum reinigen eines metallischen werkstückes
EP98400959A EP0951951B1 (fr) 1996-10-28 1998-04-17 Procédé de nettoyage d'une pièce métallique
DE69818637T DE69818637T2 (de) 1996-10-28 1998-04-17 Verfahren zum Reinigen eines metallischen Werkstückes
ES98400959T ES2209077T3 (es) 1996-10-28 1998-04-17 Procedimiento de limpieza de una pieza metalica.
CA002235425A CA2235425A1 (fr) 1996-10-28 1998-04-21 Procede de nettoyage de pieces metalliques
US09/066,939 US6017398A (en) 1996-10-28 1998-04-28 Immersed metal cleaning by subjecting object to natural resonant frequency

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR9613139A FR2755038B1 (fr) 1996-10-28 1996-10-28 Procede de nettoyage de pieces metalliques
EP98400959A EP0951951B1 (fr) 1996-10-28 1998-04-17 Procédé de nettoyage d'une pièce métallique
CA002235425A CA2235425A1 (fr) 1996-10-28 1998-04-21 Procede de nettoyage de pieces metalliques
US09/066,939 US6017398A (en) 1996-10-28 1998-04-28 Immersed metal cleaning by subjecting object to natural resonant frequency

Publications (2)

Publication Number Publication Date
EP0951951A1 EP0951951A1 (fr) 1999-10-27
EP0951951B1 true EP0951951B1 (fr) 2003-10-01

Family

ID=31499377

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98400959A Expired - Lifetime EP0951951B1 (fr) 1996-10-28 1998-04-17 Procédé de nettoyage d'une pièce métallique

Country Status (7)

Country Link
US (1) US6017398A (es)
EP (1) EP0951951B1 (es)
AT (1) ATE250988T1 (es)
CA (1) CA2235425A1 (es)
DE (1) DE69818637T2 (es)
ES (1) ES2209077T3 (es)
FR (1) FR2755038B1 (es)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2791282B1 (fr) 1999-03-23 2001-05-11 Forward Tech Industries Sa Procede de nettoyage ou de debourrage d'une piece de fonderie
TW200601439A (en) * 2004-06-18 2006-01-01 Innolux Display Corp Etching chamber
US7604702B2 (en) * 2004-10-29 2009-10-20 Crest Ultrasonics Corp. Method, apparatus, and system for bi-solvent based cleaning of precision components
DE102005055291B4 (de) * 2005-11-21 2020-07-02 Vanguard Ag Medical Services For Europe Verfahren und Vorrichtung zur Reinigung von Gegenständen mittels Ultraschall
DE102006030364A1 (de) * 2006-06-27 2008-01-03 Siemens Ag Verfahren zum Entfernen einer Schutzbeschichtung von einem Bauteil
US8327861B2 (en) * 2006-12-19 2012-12-11 Lam Research Corporation Megasonic precision cleaning of semiconductor process equipment components and parts
US20080156354A1 (en) * 2006-12-30 2008-07-03 Ameren Corporation System and method for cleaning catalytic converter
JP5470244B2 (ja) 2007-05-24 2014-04-16 トリュッチュラー・ノンウーヴェンス・アンド・マン−メイド・ファイバーズ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング 引伸ばし作業区間または引伸ばしユニットを運転するための方法および装置
US20090133712A1 (en) * 2007-11-26 2009-05-28 General Electric Company Methods for cleaning generator coils
CN104117513A (zh) * 2014-07-28 2014-10-29 国家海洋标准计量中心 水静压力试验罐体超声波清洗系统
CN104625029B (zh) * 2015-01-20 2016-08-17 华中科技大学 一种铝或镁合金铸件砂芯清理装置及其砂芯清理方法
DE102015106343A1 (de) * 2015-04-24 2016-10-27 Weber Ultrasonics Gmbh Vorrichtung und Verfahren zum Entgraten von Bauteilen mittels Ultraschall
FR3036637B1 (fr) * 2015-05-29 2019-06-07 Safran Aircraft Engines Procede de decochage d'un noyau de fonderie, et procede de fabrication par moulage comportant un tel procede
CN105382215A (zh) * 2015-11-29 2016-03-09 无锡市鑫茂锻造有限公司 铸造模具的超声波水洗式去砂头
CN107716383A (zh) * 2017-12-04 2018-02-23 陈飞华 一种建筑用器械快速清洗装置
DE102020122078A1 (de) 2020-08-24 2022-02-24 Piller Entgrattechnik Gmbh Verfahren und Anlage zur Fluidbearbeitung und Reinigung eines Werkstücks
CN114192762A (zh) * 2021-12-06 2022-03-18 贵溪骏达特种铜材有限公司 一种用于特种铜材铸件的清洗装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE827282C (de) * 1947-05-19 1952-01-10 Das Manufactures Des Glaces Et Verfahren zum Entfernen von an Metallkoerpern, insbesondere an Giessformen haftenden festen UEberzuegen
DE836586C (de) * 1950-05-31 1952-04-15 Saint Gobain Verfahren zum Entfernen von an Metallkoerpern, insbesondere an Giessformen, haftenden festen UEberzuegen
US2958332A (en) * 1958-09-19 1960-11-01 Hassan E Schueler Ultrasonic cleaning apparatus basket assembly
DE2558239A1 (de) * 1975-12-23 1977-06-30 Siemens Ag Spuel- und reinigungsbad
EP0131080B1 (fr) * 1983-07-06 1987-11-19 Snef Electro Mecanique Procédé et appareil de nettoyage de grosses pièces
US5119840A (en) * 1986-04-07 1992-06-09 Kaijo Kenki Co., Ltd. Ultrasonic oscillating device and ultrasonic washing apparatus using the same
US4836684A (en) * 1988-02-18 1989-06-06 Ultrasonic Power Corporation Ultrasonic cleaning apparatus with phase diversifier
US5118355A (en) * 1988-05-16 1992-06-02 Iben Browning Ultrasonic cleaning method
JP2832443B2 (ja) * 1988-11-22 1998-12-09 本多電子株式会社 マルチ周波数超音波洗浄方法及び洗浄装置
US5143103A (en) * 1991-01-04 1992-09-01 International Business Machines Corporation Apparatus for cleaning and drying workpieces
JPH0810731A (ja) * 1994-06-27 1996-01-16 Yoshihide Shibano 超音波洗浄装置
US5711327A (en) * 1995-10-10 1998-01-27 Fields; John T. System for vibration cleaning of articles including radiators
US5865199A (en) * 1997-10-31 1999-02-02 Pedziwiatr; Michael P. Ultrasonic cleaning apparatus

Also Published As

Publication number Publication date
ATE250988T1 (de) 2003-10-15
EP0951951A1 (fr) 1999-10-27
ES2209077T3 (es) 2004-06-16
US6017398A (en) 2000-01-25
FR2755038B1 (fr) 1998-12-24
CA2235425A1 (fr) 1999-10-21
DE69818637T2 (de) 2004-08-05
DE69818637D1 (de) 2003-11-06
FR2755038A1 (fr) 1998-04-30

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