DE2108858A1 - Cleaning metal- tools - by ultrasonics in chlorinated hydrocarbons using direct current to avoid cavitation - Google Patents

Cleaning metal- tools - by ultrasonics in chlorinated hydrocarbons using direct current to avoid cavitation

Info

Publication number
DE2108858A1
DE2108858A1 DE19712108858 DE2108858A DE2108858A1 DE 2108858 A1 DE2108858 A1 DE 2108858A1 DE 19712108858 DE19712108858 DE 19712108858 DE 2108858 A DE2108858 A DE 2108858A DE 2108858 A1 DE2108858 A1 DE 2108858A1
Authority
DE
Germany
Prior art keywords
cleaning
direct current
ultrasonics
chlorinated hydrocarbons
objects
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.)
Pending
Application number
DE19712108858
Other languages
German (de)
Inventor
Paul; Grohs Karl-Heinz; 4830 Gütersloh. C23b 5-06 Kaldenbach
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.)
SONOPRESS REINHARD MOHN oHG
Original Assignee
SONOPRESS REINHARD MOHN oHG
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
Application filed by SONOPRESS REINHARD MOHN oHG filed Critical SONOPRESS REINHARD MOHN oHG
Priority to DE19712108858 priority Critical patent/DE2108858A1/en
Publication of DE2108858A1 publication Critical patent/DE2108858A1/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
    • C25C1/12—Electrolytic production, recovery or refining of metals by electrolysis of solutions of copper

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

Ultrasonics are used in "Cl" hydrocarbons with aq Na3PO4 for cleaning metal articles, e.g. press tools for mfr. of records, using direct current to avoid damage and roughness of surface. All impurities are removed.

Description

Verfahren zur Reinigung metallischer Gegenstände mittels Ultraschalls Beschreibung Es ist bekannt, metallische Gegenstände von z.B. fertigungsbedingten Verunreinigungen in einem geeigneten Reinigungs- oder Lösungsmittel unter Mitwirkung von Ultraschall, im Folgenden mit US bezeichnet, zu säubern. Process for cleaning metallic objects using ultrasound Description It is known to use metallic objects from e.g. Impurities in a suitable cleaning agent or solvent with the assistance from ultrasound, hereinafter referred to as US, to clean.

Der US-Strom bewirkt durch seine schnellen Kompressionen und Dilatationen des Reinigungsmittels ein schnelleres und gründliches Säubern gegenüber z.B. mäßig bewegtem Eintauchen der Gegenstände in ein geeignetes Reinigungsmittel.The US current causes compressions and dilatations through its rapid compression and dilatation cleaning agent faster and more thorough cleaning compared to e.g. moderate moving the objects into a suitable cleaning agent.

Oblicherweise werden den Reinigungsmitteln noch Aktivatoren zugesetzt, um dem Reinigungsmittel größere Lösungs- oder Aufschwemmungs-Eigenschaften gegenüber den Verunreinigungen zu geben.Activators are usually added to the cleaning agents, the detergent has greater dissolving or suspension properties to give to the impurities.

Die größte Reinigungskraft entfaltet bekanntlicherweise der US, wenn Cavitation in den Flüssigkeiten auftritt, d.h. wenn er so stark zugeführt wird, daß ein explosionsartiges Zerreißen von Reinigungsmittelteilchen auftritt. Bei längerer Einwirkung kann der US in der Cavitationszone die Oberfläche mechanisch angreifen, etwa in der Form, daß kleinste Teilchen aus der metallischen Oberfläche der zu reinigenden Gegenstände herausgerissen werden und die Oberfläche dadurch beschädigt, z.B. rauh wird.As is well known, the greatest cleaning power unfolds in the US when Cavitation occurs in the fluids, i.e. when it is supplied so strongly that that explosive tearing of detergent particles occurs. For longer The US can mechanically attack the surface in the cavitation zone, roughly in the form that the smallest particles from the metallic surface of the to be cleaned Objects are torn out and the surface is damaged, e.g. rough will.

In besonderen Fällen, wo es darauf ankommt, größten Reinigungseffekt ohne geringsten Oberflächenangriff zu erhalten, dies ist z.B.In special cases where it matters, the greatest cleaning effect without obtaining the slightest surface attack, this is e.g.

der Fall bei der Reinigung von Press-Werkzeugen für die Herstellung von Schallplatten, wird erfindungsgemäß beansprucht, die US-Einwirkung kurz vor Erreichen des Zustandes der Cavitation durch Zuführung von pulsierendem Gleichstrom zu unterbinden.the case with the cleaning of press tools for manufacturing of records, is claimed according to the invention, the US exposure shortly before Achieving the state of cavitation by supplying pulsating direct current to prevent.

In dieser Grenzphase wird allein schon die die Reinigung beschleunigende Wirkung des US's ohne die geschilderten Nachteile wesentlich verbessert.In this borderline phase, the purification accelerating alone takes place The effect of the US is significantly improved without the disadvantages described.

Nach Anwendung dieses neuartigen Verfahrens tritt auch bei langer Beschallungszeit und starken US-Leistungen kein Angriff der Oberfächen der so behandelten Gegenstände ein, und sie wird von allen vorher vorhandenen Verunreinigungen befreit.After applying this novel process occurs even with long Sonication time and strong US performances do not attack the surfaces of those treated in this way Objects and it will be freed from all pre-existing impurities.

Claims (3)

PatentansprücheClaims u Verfahren zur Säuberung von metallischen Gegenständen von z.B. fertigungsbedingten Verunreinigungen in Reinigungsflüssigkeiten unter Anwendung von Ultraschall, dadurch gekennzeichnet, daß dem US-Strom ein pulsierender Gleichstrom überlagert wird und dadurch schädliche Einwirkungen einer Cavitation in den Reinigungsflüssigkeiten auf die Oberfläche der zu reinigenden Gegenstände verhindert wird.u Process for cleaning metallic objects from e.g. production-related Impurities in cleaning fluids using ultrasound, thereby characterized in that a pulsating direct current is superimposed on the US current and thereby harmful effects of cavitation in the cleaning fluids on the surface of the objects to be cleaned is prevented. 2) Verfahren zur Säuberung von metallischen Gegenständen unter Anwendung von US nach Anspruch 1, dadurch gekennzeichnet, daß die Reinigungsflüssigkeiten aus einem Gemisch von Chlorkohlenwasserstoffen und wässerigem Natriumphosphat bestehen.2) Method of cleaning metallic objects using of US according to claim 1, characterized in that the cleaning fluids consist of a mixture of chlorinated hydrocarbons and aqueous sodium phosphate. 3) Verfahren zur Säuberung von metallischen Gegenständen unter Anwendung von US nach Anspruch 1 und 2, dadurch gekennzeichnet, daß den Reinigungsflüssigkeiten im Bedarfsfalle geeignete Netzmittel beigemischt werden, die auf die Re inigungs flüssigkeiten und Art und Zusammensetzung der Metalle und ihrer Oberfläche, aus denen die zu säubernden Gegenstände bestehen, abgestimmt sind.3) Method of cleaning metallic objects using of US according to claim 1 and 2, characterized in that the cleaning fluids If necessary, suitable wetting agents can be added to the cleaning liquids and the type and composition of the metals and their surface which the objects to be cleaned exist, are coordinated.
DE19712108858 1971-02-25 1971-02-25 Cleaning metal- tools - by ultrasonics in chlorinated hydrocarbons using direct current to avoid cavitation Pending DE2108858A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19712108858 DE2108858A1 (en) 1971-02-25 1971-02-25 Cleaning metal- tools - by ultrasonics in chlorinated hydrocarbons using direct current to avoid cavitation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712108858 DE2108858A1 (en) 1971-02-25 1971-02-25 Cleaning metal- tools - by ultrasonics in chlorinated hydrocarbons using direct current to avoid cavitation

Publications (1)

Publication Number Publication Date
DE2108858A1 true DE2108858A1 (en) 1972-08-31

Family

ID=5799732

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19712108858 Pending DE2108858A1 (en) 1971-02-25 1971-02-25 Cleaning metal- tools - by ultrasonics in chlorinated hydrocarbons using direct current to avoid cavitation

Country Status (1)

Country Link
DE (1) DE2108858A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3036348A1 (en) * 1979-10-02 1981-04-23 Vereinigte Metallwerke Ranshofen-Berndorf AG, Bernau am Inn, Oberösterreich METHOD AND DEVICE FOR CLEANING CATHODES WITH ULTRASOUND

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3036348A1 (en) * 1979-10-02 1981-04-23 Vereinigte Metallwerke Ranshofen-Berndorf AG, Bernau am Inn, Oberösterreich METHOD AND DEVICE FOR CLEANING CATHODES WITH ULTRASOUND

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