EP0087055A1 - Procédé pour le traitement par solvant d'objets métalliques - Google Patents

Procédé pour le traitement par solvant d'objets métalliques Download PDF

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Publication number
EP0087055A1
EP0087055A1 EP83101166A EP83101166A EP0087055A1 EP 0087055 A1 EP0087055 A1 EP 0087055A1 EP 83101166 A EP83101166 A EP 83101166A EP 83101166 A EP83101166 A EP 83101166A EP 0087055 A1 EP0087055 A1 EP 0087055A1
Authority
EP
European Patent Office
Prior art keywords
treated
solvent
treatment chamber
chamber
treatment
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
EP83101166A
Other languages
German (de)
English (en)
Other versions
EP0087055B1 (fr
Inventor
Heinz Koblenzer
Franz Dipl.-Ing. Staudinger
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.)
Robert Bosch GmbH
Duerr GmbH
Original Assignee
Robert Bosch GmbH
Duerr GmbH
Lpw Reinigungstechnik GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6156024&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0087055(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Robert Bosch GmbH, Duerr GmbH, Lpw Reinigungstechnik GmbH filed Critical Robert Bosch GmbH
Publication of EP0087055A1 publication Critical patent/EP0087055A1/fr
Application granted granted Critical
Publication of EP0087055B1 publication Critical patent/EP0087055B1/fr
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
    • C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
    • C23G5/04—Apparatus
    • 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
    • B08B3/02—Cleaning by the force of jets or sprays

Definitions

  • the invention relates generically to a method for the solvent treatment of in particular metallic material to be treated for the purpose of cleaning in a lockable treatment chamber, the material to be treated being introduced into the treatment chamber, the treatment chamber being closed and the material to be treated being treated with the solvent by spraying, and the injected solvent is caught.
  • a solvent treatment is in particular the degreasing of objects which are then further processed by electroplating.
  • the so-called dilution principle involves working with several treatment stages, mostly in several treatment chambers, but in any case with several containers for the solvent and with associated devices for treating the material to be treated by spraying.
  • the solvent is passed through the various treatment stages and is increasingly loaded with the substances to be detached from the material to be treated, while the material to be treated, as viewed in the process flow diagram, is carried out as it were in countercurrent.
  • the material to be treated is treated with pure or with the least loaded solvent.
  • the invention has for its object to carry out the generic method so that an arbitrarily high degree of purity can be achieved, without the need for equipment required when working according to the dilution principle.
  • the invention teaches that the material to be treated is treated with pure solvent, the amount of which is such that spraying is possible in a circuit realized by means of a pump, that the collected solvent is then removed and the material to be treated is dried with warm air, and that it is then rinsed with room air until the solvent concentration is below the maximum workplace concentration, only then is the treated material removed and the treatment chamber is re-loaded.
  • the warm air is generally circulated during the drying measure and can be freed of entrained solvent vapors during or afterwards.
  • the invention teaches that the Be material is treated several times with pure solvent before the material to be treated is dried and rinsed with ambient air.
  • pre-cleaning which is preferably carried out with the solvent which has already worked as a pure solvent in the process according to the invention.
  • the solvent used for pre-cleaning can then, for. B. by distillation, processed and used again for the process according to the invention.
  • the method according to the invention can be carried out as a single-chamber method, the treatment chamber itself being loaded and emptied directly. To this end, the invention teaches that the treatment and drying of the material to be treated are carried out in the treatment chamber, which is then rinsed with room air and opened after the rinsing for the purpose of loading and / or emptying. However, the method according to the invention can also be carried out as a two-chamber method with the charging and emptying chamber connected upstream of the treatment chamber.
  • the invention teaches that the treatment and drying of the material to be treated are carried out in the treatment chamber which is connected to a loading and emptying chamber, with a closure (door closure, slide closure, flap closure) between the treatment chamber and the loading and emptying chamber or cold seal or the like) is arranged, and that the dried material to be treated is introduced into the loading and emptying chamber and this is flushed with room air.
  • the loading and emptying chamber is expediently closable and remains closed when flushing with room air until the flushing process has ended. Only then is it opened for the purpose of emptying and reloading. After purging, the room air can be cleaned using activated carbon, but if the process is implemented in a small system, it can also be blown off directly over the roof. Depending on the conditions and concentrations, work can be carried out with or without suction.
  • the usual cold traps can also be used within the scope of the invention.
  • the first figure shows a treatment chamber 1 which can be closed via the door 2. It is a system that has only a single chamber 1 for the material to be treated, which is at the same time the treatment chamber as well as the loading and emptying chamber, which therefore loads directly via the door 2 mentioned and also empties via the door 2 after the solvent treatment of the material to be treated has ended becomes.
  • the treatment chamber 1 has a drain bottom 3, through which the solvent can be drawn off.
  • a collecting room 4 is connected.
  • These circles I, 11, III and this path IV are equipped with the usual units, such as blowers 5, heat exchangers 6, filters 7, pestle 8, valves 9 and the like.
  • a method can be implemented in which the material to be treated is treated with pure solvent, the amount of which is so dimensioned that the spraying takes place in a circuit realized by means of pump 10. Then the collected solvent is removed. The material to be treated is dried with warm air in drying circuit II. Thereafter, the treatment chamber 1 is flushed with room air via IV until the solvent concentration in the treatment chamber 1 is below the maximum workplace concentration. Only then is the treated material to be treated removed and the treatment chamber 1 is loaded again. - The system is the subject of the invention.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Processing Of Solid Wastes (AREA)
EP83101166A 1982-02-18 1983-02-08 Procédé pour le traitement par solvant d'objets métalliques Expired EP0087055B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823205736 DE3205736A1 (de) 1982-02-18 1982-02-18 Verfahren fuer die loesungsmittelbehandlung von insbesondere metallischem behandlungsgut
DE3205736 1982-02-18

Publications (2)

Publication Number Publication Date
EP0087055A1 true EP0087055A1 (fr) 1983-08-31
EP0087055B1 EP0087055B1 (fr) 1987-12-16

Family

ID=6156024

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83101166A Expired EP0087055B1 (fr) 1982-02-18 1983-02-08 Procédé pour le traitement par solvant d'objets métalliques

Country Status (4)

Country Link
EP (1) EP0087055B1 (fr)
DE (2) DE3205736A1 (fr)
ES (1) ES8400500A1 (fr)
IT (1) IT1163104B (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2599642A1 (fr) * 1986-06-09 1987-12-11 Serma Sarl Cabine programmable de prelavage, lavage, pulverisation, atomisation, rincage, soufflage, sechage, pour l'industrie
EP0276876A1 (fr) * 1987-01-09 1988-08-03 Metalas-Holland B.V. Procédé pour le dégraissage à la vapeur d'objets
DE3709672A1 (de) * 1987-03-24 1988-10-13 Carl Dittmann Gmbh & Co Kg Verfahren und anlage zum reinigen und entfetten von behandlungsgut
EP0289982A2 (fr) * 1987-05-07 1988-11-09 Höckh Metall-Reinigungs-Anlagen Gmbh Appareil pour sécher des objets dans des installations de nettoyage
EP0302313A1 (fr) * 1987-08-01 1989-02-08 Peter Weil Procédé et dispositif pour traiter des objets avec des solvants dans un récipient clos
DE19640060A1 (de) * 1996-09-28 1998-04-09 Boewe Passat Reinigung Reinigungsverfahren zur Verminderung des Schmutzanteils in der Reinigungsflotte, insbesondere im Arbeitstank bei Textilreinigungsmaschinen die Kohlenwasserstoff als Lösemittel verwenden

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD27987A (fr) *
AT328251B (de) * 1973-01-09 1976-03-10 Amstutz Adrian Anlage zum reinigen von teilen durch eine erwarmte flussigkeit
DD131187A5 (de) * 1976-08-13 1978-06-07 Schering Ag Verfahren zur reinigung von gegenstaenden nach galvanischer und/oder chemischer oberflaechenbehandlung
DE2922213A1 (de) * 1979-03-12 1980-09-18 John Michael Bartlett Reinigungsvorrichtung und -verfahren fuer maschinenkomponenten

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1172926B (de) * 1958-09-25 1964-06-25 Wacker Chemie Gmbh Vorrichtung zum Reinigen von starrem Material
US3079286A (en) * 1962-03-02 1963-02-26 Detrex Chem Ind Enclosed cold solvent spray cleaner
FR2146633A5 (en) * 1971-07-21 1973-03-02 Hajtomu Es Felvonogyar Degreasing metal workpieces - using organic solvents while avoiding release of noxious solvent vapours

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD27987A (fr) *
AT328251B (de) * 1973-01-09 1976-03-10 Amstutz Adrian Anlage zum reinigen von teilen durch eine erwarmte flussigkeit
DD131187A5 (de) * 1976-08-13 1978-06-07 Schering Ag Verfahren zur reinigung von gegenstaenden nach galvanischer und/oder chemischer oberflaechenbehandlung
DE2922213A1 (de) * 1979-03-12 1980-09-18 John Michael Bartlett Reinigungsvorrichtung und -verfahren fuer maschinenkomponenten

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2599642A1 (fr) * 1986-06-09 1987-12-11 Serma Sarl Cabine programmable de prelavage, lavage, pulverisation, atomisation, rincage, soufflage, sechage, pour l'industrie
EP0276876A1 (fr) * 1987-01-09 1988-08-03 Metalas-Holland B.V. Procédé pour le dégraissage à la vapeur d'objets
DE3709672A1 (de) * 1987-03-24 1988-10-13 Carl Dittmann Gmbh & Co Kg Verfahren und anlage zum reinigen und entfetten von behandlungsgut
EP0289982A2 (fr) * 1987-05-07 1988-11-09 Höckh Metall-Reinigungs-Anlagen Gmbh Appareil pour sécher des objets dans des installations de nettoyage
EP0289982A3 (en) * 1987-05-07 1990-01-31 Hockh Metall-Reinigungs-Anlagen Gmbh Drying apparatus for objects in cleaning plants
EP0302313A1 (fr) * 1987-08-01 1989-02-08 Peter Weil Procédé et dispositif pour traiter des objets avec des solvants dans un récipient clos
WO1989001057A1 (fr) * 1987-08-01 1989-02-09 Peter Weil Procede et dispositif de traitement d'objets avec un solvant dans un recipient ferme
DE19640060A1 (de) * 1996-09-28 1998-04-09 Boewe Passat Reinigung Reinigungsverfahren zur Verminderung des Schmutzanteils in der Reinigungsflotte, insbesondere im Arbeitstank bei Textilreinigungsmaschinen die Kohlenwasserstoff als Lösemittel verwenden
DE19640060C2 (de) * 1996-09-28 2000-01-27 Boewe Passat Reinigung Reinigungsverfahren in einer Textilreinigungsmaschine

Also Published As

Publication number Publication date
DE3205736A1 (de) 1983-08-25
EP0087055B1 (fr) 1987-12-16
DE3374949D1 (en) 1988-01-28
IT8319590A1 (it) 1984-08-15
ES519813A0 (es) 1983-11-16
IT8319590A0 (it) 1983-02-15
ES8400500A1 (es) 1983-11-16
IT1163104B (it) 1987-04-08

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