EP1310306A1 - Process for cleaning metallic components - Google Patents
Process for cleaning metallic components Download PDFInfo
- Publication number
- EP1310306A1 EP1310306A1 EP02022059A EP02022059A EP1310306A1 EP 1310306 A1 EP1310306 A1 EP 1310306A1 EP 02022059 A EP02022059 A EP 02022059A EP 02022059 A EP02022059 A EP 02022059A EP 1310306 A1 EP1310306 A1 EP 1310306A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- components
- container
- sound waves
- cleaner
- weight
- 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.)
- Withdrawn
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 15
- 239000001257 hydrogen Substances 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 4
- 238000005554 pickling Methods 0.000 claims description 16
- 239000003112 inhibitor Substances 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 4
- 150000007513 acids Chemical class 0.000 claims description 4
- 150000001450 anions Chemical class 0.000 claims description 4
- 150000001735 carboxylic acids Chemical class 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000004094 surface-active agent Substances 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical class OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims description 2
- 239000012141 concentrate Substances 0.000 claims description 2
- ABLZXFCXXLZCGV-UHFFFAOYSA-N phosphonic acid group Chemical group P(O)(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 claims description 2
- 150000003009 phosphonic acids Chemical class 0.000 claims description 2
- 235000011007 phosphoric acid Nutrition 0.000 claims description 2
- 150000003016 phosphoric acids Chemical class 0.000 claims description 2
- 239000003599 detergent Substances 0.000 claims 1
- 239000012459 cleaning agent Substances 0.000 abstract 2
- 239000002184 metal Substances 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000005480 shot peening Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
- C23G1/088—Iron or steel solutions containing organic acids
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2086—Hydroxy carboxylic acids-salts thereof
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/36—Organic compounds containing phosphorus
- C11D3/362—Phosphates or phosphites
-
- 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
- C23G3/00—Apparatus for cleaning or pickling metallic material
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
- C11D2111/14—Hard surfaces
- C11D2111/16—Metals
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/40—Specific cleaning or washing processes
- C11D2111/46—Specific cleaning or washing processes applying energy, e.g. irradiation
Definitions
- the invention relates to a method for cleaning metallic components, especially for the removal of oxide deposits.
- Pickling is generally chemical in metal surface treatment Descaling and rust removal with mineral acids.
- acidic stains such as hydrochloric acid, sulfuric acid and nitric acid for use.
- hydrochloric acid Today the tendency for pickling goes to hydrochloric acid, because it also treats the surfaces of lightly alloyed steels with a cleaner metallic finish can be.
- pickling inhibitors are chemical substances that only cause the metal surface is freed of impurities, but not the metal as such is removed. By adding these inhibitors the metal removal considerably reduced when pickling.
- the prior art also includes an apparatus and a method for removal known from oxide layers on components, by the use one in a basin-shaped module grease, dirt and tempered liquid medium and into the medium embedded vibrations in a single operation Component surfaces cleaned, degreased and freed from the oxide layer can, without this having to be implemented in another work module is necessary (DE 298 05 737 U1).
- the object of the invention is a method for cleaning metallic components, especially for removing provide oxidic coatings, with which for hydrogen embrittlement inclining steels largely free of hydrogen embrittlement can be freed of oxidic deposits.
- the solution to this problem is a method with the measures of the claim 1.
- metallic components in a container a liquid cleaner with a pH in the range of 4 to 8 and below cleaned by the influence of sound waves.
- the metallic components exist here from a hardenable steel with a carbon content of at least 0.1% and are at least partially hardened.
- Pickling enables the use of high-energy sound waves in the method according to the invention the use of tempered, specially formulated cleaners with a higher pH in the range of 4 to 8. Due to the high pH value, the hydrogen evolution during the cleaning process is significantly reduced.
- hardenable steels with a carbon content of at least 0.1% can be cleaned, but especially high-strength ones Steels that are at least partially hardened.
- the liquid cleaner is an aqueous Solution with a pH in the range of 5 to 7.
- the temperature of the cleaner is in a temperature range up to 100 ° C adjustable (claim 4).
- the preferred frequency range for the Sound waves used is between 10 kHz and 100 kHz (claim 5).
- the measures of claim 6 provide that the components are the cleaner be fed continuously or discontinuously in the container.
- the parts to be cleaned can therefore be used individually or in sets in baskets or racks are added to the cleaning bath.
- the filling can be carried out manually or mechanically by a robot.
- the one to be cleaned is Components can also be implemented in an automatic belt or chain run.
- the Components to be cleaned can be standing, hanging or lying in the container be placed.
- the sound waves originate from one or more vibrating elements, which have an angular or circular cross section (claim 7).
- the Vibrating elements can be used as flat oscillators, for example in the form a cuboid or in cylindrical form as a rod oscillator.
- several vibrating elements can be arranged in a container.
- the vibrating elements can at least a part of the inner surfaces of the container cover (claim 8). Of course you can also in the Center or other location within the container his. It is also conceivable that one or more inner surfaces of the container themselves are designed as vibrating elements (claim 9). For example through the configuration of the tank bottom as a vibrating element.
- the cleaning performance can also be increased by the fact that Components in the container and the vibrating elements moved relative to each other become.
- the components in the container can face each other fixed vibrating elements can be turned or even rotate around to achieve an optimal cleaning effect on all component areas. at very bulky components, it is also conceivable that the vibrating elements can be moved relative to a fixed component.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Reinigung von metallischen Bauteilen, insbesondere zur Entfernung von oxidischen Belägen.The invention relates to a method for cleaning metallic components, especially for the removal of oxide deposits.
Überall dort, wo im Produktionsprozess Metalle bearbeitet werden, müssen sie vor der Weiterverarbeitung wie Galvanisieren, Lackieren, Emaillieren und anderen Beschichtungen gründlich gereinigt und entfettet werden. Diese Aufgabe übernehmen Reiniger, die in pulver- und/oder flüssiger Form angeboten werden. Sie sind einsetzbar im Tauch- oder Spritzverfahren.Wherever metals are processed in the production process before further processing such as electroplating, painting, enamelling and other coatings are thoroughly cleaned and degreased. This The task is performed by cleaners that are offered in powder and / or liquid form become. They can be used in immersion or spray processes.
Beizen ist in der Metalloberflächenbehandlung allgemein das chemische Entzundern und Entrosten durch Mineralsäuren. Zur Behandlung von Stahl kommen vorwiegend saure Beizen wie Salzsäure, Schwefelsäure und Salpetersäure zum Einsatz. Heute geht die Tendenz beim Beizen zu Salzsäure, weil damit auch die Oberflächen leicht legierter Stähle metallisch reiner behandelt werden können.Pickling is generally chemical in metal surface treatment Descaling and rust removal with mineral acids. For the treatment of steel come primarily acidic stains such as hydrochloric acid, sulfuric acid and nitric acid for use. Today the tendency for pickling goes to hydrochloric acid, because it also treats the surfaces of lightly alloyed steels with a cleaner metallic finish can be.
Zum Beizen von Normalstahl, d.h. zum Entfernen von Rost und zum Entzundern, werden entweder vorkonfektionierte Produkte verwendet oder Inhibitoren, die den zum Beizen verwendeten Säuren zugesetzt werden. Beizinhibitoren sind chemische Substanzen, die bewirken, dass lediglich die Metalloberfläche von Verunreinigungen befreit wird, nicht aber das Metall als solches abgetragen wird. Durch den Zusatz dieser Inhibitoren wird der Metallabtrag beim Beizen beträchtlich verringert.For pickling normal steel, i.e. for removing rust and descaling, either pre-assembled products are used or inhibitors, which are added to the acids used for pickling. pickling inhibitors are chemical substances that only cause the metal surface is freed of impurities, but not the metal as such is removed. By adding these inhibitors the metal removal considerably reduced when pickling.
Durch die Reaktion der Beize mit der ungeschützten Metalloberfläche entsteht Wasserstoff, der im Beizbad aufsteigt. Problematisch ist hierbei, dass der Wasserstoff von Metall, insbesondere von Stahl, teilweise aufgenommen wird, was zu einer Materialversprödung und damit zu Spannungsrisskorrosionen führen kann. Zwar hemmen die Inhibitoren die Abtragung des Metalls als solches, jedoch ist nicht klar, unter welchen Bedingungen sie die Wasserstoffaufnahme des Metalls beschleunigen oder verlangsamen. Die Hersteller von inhibierten Beizentfettern sind daher dazu übergegangen, für die verschiedenen Einsatzfälle speziell konfigurierte Beizen bereitzustellen, beispielsweise spezielle auf minimale Wasserversprödung optimierte Tensid/Inhibitoren-mischungen. Aber selbst bei hochkritischen Stahlteilen wie z.B. hochfesten Stählen dürfen diese nur kurze Zeit dem Beizbad ausgesetzt sein, um eine Wasserstoffversprödung zu verhindern.By the reaction of the stain with the unprotected metal surface Hydrogen is generated, which rises in the pickling bath. The problem here is that the hydrogen from metal, especially steel, is partially is recorded, which leads to embrittlement and thus to Stress corrosion cracking can result. The inhibitors inhibit the Removal of the metal as such, however, it is not clear under which Conditions they accelerate the hydrogen uptake of the metal or slow it down. The manufacturers of inhibited pickling degreasers are therefore one of them passed, specially configured for the various applications To provide pickling, for example special to minimal Water embrittlement optimized surfactant / inhibitor mixtures. But yourself for highly critical steel parts such as high-strength steels are only allowed be exposed to the pickling bath for a short time to become hydrogen embrittled to prevent.
Im Stand der Technik ist ferner eine Vorrichtung und ein Verfahren zur Entfernung von Oxidschichten auf Bauteilen bekannt, bei dem durch den Einsatz eines in einem beckenförmigen Modul gespeicherten fett-, schmutz- und oxidschichtlösenden temperierten flüssigen Mediums und in das Medium eingelagerte Schwingungen in einem Arbeitsgang die zu beschichtenden Bauteiloberflächen gereinigt, entfettet und von der Oxidschicht befreit werden können, ohne dass hierfür eine Umsetzung in ein anderes Arbeitsmodul notwendig ist (DE 298 05 737 U1).The prior art also includes an apparatus and a method for removal known from oxide layers on components, by the use one in a basin-shaped module grease, dirt and tempered liquid medium and into the medium embedded vibrations in a single operation Component surfaces cleaned, degreased and freed from the oxide layer can, without this having to be implemented in another work module is necessary (DE 298 05 737 U1).
Bisherige chemische Verfahren (Beizen) lassen sich bei partiell oder komplett gehärteten Fahrwerks- oder Sicherheitsstrukturteilen aufgrund der Gefahr der Wasserstoffversprödung nicht einsetzen. Beim Beizen entwickelt sich durch die zuvor beschriebene chemische Reaktion an der Metalloberfläche Wasserstoff, der zu einer Versprödung des Stahls führen kann. Bei sehr hohen Härten des Stahls ist die Säurebehandlung in einem Beizbad daher nicht zulässig. Bei geringeren Härten des Stahls ist zumindest die Zugabe eines Inhibitors erforderlich sowie üblicherweise eine anschließende Temperaturbehandlung zur Entfernung etwaiger Wasserstoffrückstände.Previous chemical processes (pickling) can be partially or completely hardened chassis or safety structure parts due to the danger do not use hydrogen embrittlement. Developed during pickling by the chemical reaction on the metal surface described above Hydrogen, which can cause the steel to become brittle. At very high steel hardness is therefore the acid treatment in a pickling bath not permitted. If the steel is less hard, there is at least the addition an inhibitor and usually a subsequent temperature treatment to remove any hydrogen residues.
Verfahren mit abrasiver Wirkung, wie das Sand- oder Kugelstrahlen, bringen die Gefahr mit sich, dass sich die Bauteile mit geringen Wanddicken verziehen. Zudem sind Verfahren mit abrasiver Wirkung bei hinterschnittenen oder mit Hohlräumen versehenen Bauteilen nicht oder nur sehr schwer einsetzbar.Bring processes with an abrasive effect, such as sandblasting or shot peening there is a risk that the components with small wall thicknesses will warp. In addition, processes with an abrasive effect on undercut or components with cavities cannot be used or can only be used with great difficulty.
Der Erfindung liegt hiervon ausgehend die Aufgabe zugrunde, ein Verfahren zur Reinigung von metallischen Bauteilen, insbesondere zur Entfernung von oxidischen Belägen, bereitzustellen, mit welchem zur Wasserstoffversprödung neigende Stähle weitestgehend frei von Wasserstoffversprödungen von oxidischen Belägen befreit werden können.Proceeding from this, the object of the invention is a method for cleaning metallic components, especially for removing provide oxidic coatings, with which for hydrogen embrittlement inclining steels largely free of hydrogen embrittlement can be freed of oxidic deposits.
Die Lösung dieser Aufgabe ist ein Verfahren mit den Maßnahmen des Patentanspruchs 1. Hierbei werden metallische Bauteile in einem Behälter mit einem flüssigen Reiniger mit einem pH-Wert im Bereich von 4 bis 8 und unter dem Einfluss von Schallwellen gereinigt. Die metallischen Bauteile bestehen hierbei aus einem härtbaren Stahl mit einem Kohlenstoffanteil von wenigstens 0,1 % und sind zumindest partiell gehärtet. Im Unterschied zu herkömmlichen Beizen ermöglicht die Verwendung von energiereichen Schallwellen bei dem erfindungsgemäßen Verfahren den Einsatz von temperierten, speziell formulierten Reinigern mit einem höheren pH-Wert im Bereich von 4 bis 8. Aufgrund des hohen pH-Wertes wird die Wasserstoffentwicklung während des Reinigungsvorgangs damit erheblich vermindert. Die Kombination der energiereichen Schallwellen mit dem speziell formulierten Reiniger ermöglicht es somit, auch hochfeste, metallische Bauteile, die stark zur Wasserstoffversprödung neigen, zu reinigen.The solution to this problem is a method with the measures of the claim 1. Here, metallic components in a container a liquid cleaner with a pH in the range of 4 to 8 and below cleaned by the influence of sound waves. The metallic components exist here from a hardenable steel with a carbon content of at least 0.1% and are at least partially hardened. In contrast to conventional ones Pickling enables the use of high-energy sound waves in the method according to the invention the use of tempered, specially formulated cleaners with a higher pH in the range of 4 to 8. Due to the high pH value, the hydrogen evolution during the cleaning process is significantly reduced. The combination which enables high-energy sound waves with the specially formulated cleaner it, therefore, also high-strength, metallic components that are highly hydrogen embrittlement tend to clean.
Es können dadurch härtbare Stähle mit einem Kohlenstoffanteil von wenigstens 0,1 % gereinigt werden, insbesondere aber auch hochfeste Stähle, die zumindest partiell gehärtet sind.As a result, hardenable steels with a carbon content of at least 0.1% can be cleaned, but especially high-strength ones Steels that are at least partially hardened.
Nach Anspruch 2 ist vorgesehen, dass der flüssige Reiniger eine wässrige Lösung mit einem pH-Wert im Bereich von 5 bis 7 ist.According to claim 2 it is provided that the liquid cleaner is an aqueous Solution with a pH in the range of 5 to 7.
Gemäß den Merkmalen des Anspruchs 3 enthält der wässrige Reiniger folgende
Komponenten:
Die Temperatur des Reinigers ist dabei in einem Temperaturbereich bis 100°C einstellbar (Anspruch 4). Der bevorzugte Frequenzbereich für die verwendeten Schallwellen liegt zwischen 10 kHz und 100 kHz (Anspruch 5). The temperature of the cleaner is in a temperature range up to 100 ° C adjustable (claim 4). The preferred frequency range for the Sound waves used is between 10 kHz and 100 kHz (claim 5).
Die Maßnahmen des Anspruchs 6 sehen vor, dass die Bauteile dem Reiniger in dem Behälter kontinuierlich oder diskontinuierlich zugeführt werden. Die zu reinigenden Teilen können also einzeln oder satzweise in Körben oder Racks in das Reinigungsbad gegeben werden. Die Befüllung kann dabei manuell oder auch maschinell von einem Roboter ausgeführt werden. Selbstverständlich ist bei entsprechender Verweildauer der zu reinigenden Bauteile auch ein automatischer Band- oder Kettendurchlauf realisierbar. Die zu reinigenden Bauteile können in dem Behälter stehend, hängend oder liegend platziert sein.The measures of claim 6 provide that the components are the cleaner be fed continuously or discontinuously in the container. The parts to be cleaned can therefore be used individually or in sets in baskets or racks are added to the cleaning bath. The filling can be carried out manually or mechanically by a robot. Of course, with a corresponding dwell time, the one to be cleaned is Components can also be implemented in an automatic belt or chain run. The Components to be cleaned can be standing, hanging or lying in the container be placed.
Die Schallwellen gehen von einem oder mehreren Schwingelementen aus, die einen eckigen oder kreisförmigen Querschnitt besitzen (Anspruch 7). Die Schwingelemente können dabei als Flachschwinger, beispielsweise in Form eines Quaders oder in zylindrischer Form als Stabschwinger ausgeführt sein. In Abhängigkeit von der Konfiguration der zu reinigenden Bauteile können mehrere Schwingelemente in einem Behälter angeordnet sein. Die Schwingelemente können dabei wenigstens einen Teil der Innenflächen des Behälters bedecken (Anspruch 8). Selbstverständlich können sie aber auch in der Mitte oder an einer anderen Position innerhalb des Behälters angeordnet sein. Es ist auch denkbar, dass eine oder mehrere Innenflächen des Behälters selbst als Schwingelemente ausgeführt sind (Anspruch 9). Beispielsweise durch die Konfiguration des Behälterbodens als Schwingelement.The sound waves originate from one or more vibrating elements, which have an angular or circular cross section (claim 7). The Vibrating elements can be used as flat oscillators, for example in the form a cuboid or in cylindrical form as a rod oscillator. Depending on the configuration of the components to be cleaned several vibrating elements can be arranged in a container. The vibrating elements can at least a part of the inner surfaces of the container cover (claim 8). Of course you can also in the Center or other location within the container his. It is also conceivable that one or more inner surfaces of the container themselves are designed as vibrating elements (claim 9). For example through the configuration of the tank bottom as a vibrating element.
Um die Reinigungswirkung zu erhöhen, ist es nach Anspruch 10 möglich, in dem Behälter Vorrichtungen vorzusehen, um Schallwellen auf das Bauteil zu konzentrieren, um eine möglichst hohe Reinigungsleistung am Bauteil zu erreichen.In order to increase the cleaning effect, it is possible according to claim 10 to provide the container devices for sound waves to the component concentrate in order to achieve the highest possible cleaning performance on the component to reach.
Die Reinigungsleistung kann auch dadurch gesteigert werden, dass die Bauteile in dem Behälter und die Schwingelemente relativ zueinander bewegt werden. Insbesondere können die Bauteile in dem Behälter gegenüber feststehenden Schwingelementen gewendet werden oder sogar rotieren, um an allen Bauteilbereichen eine optimale Reinigungswirkung zu erzielen. Bei sehr sperrigen Bauteilen ist es auch denkbar, dass die Schwingelemente relativ zu einem feststehenden Bauteil bewegt werden.The cleaning performance can also be increased by the fact that Components in the container and the vibrating elements moved relative to each other become. In particular, the components in the container can face each other fixed vibrating elements can be turned or even rotate around to achieve an optimal cleaning effect on all component areas. at very bulky components, it is also conceivable that the vibrating elements can be moved relative to a fixed component.
Wesentlich ist, dass der an der Oberfläche der Bauteile durch chemische Reaktion mit dem Reiniger entstehende Wasserstoff von den Schallwellen schnell abgetragen wird, um dadurch eine Wasserstoffversprödung der Bauteile zu verhindern (Anspruch 12).It is essential that the surface of the components by chemical Reaction with the cleaner generated hydrogen from the sound waves is removed quickly, thereby causing hydrogen embrittlement Prevent components (claim 12).
Claims (12)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10154922 | 2001-11-08 | ||
DE10154922A DE10154922B4 (en) | 2001-11-08 | 2001-11-08 | Process for cleaning metallic components |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1310306A1 true EP1310306A1 (en) | 2003-05-14 |
Family
ID=7705080
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02022059A Withdrawn EP1310306A1 (en) | 2001-11-08 | 2002-10-02 | Process for cleaning metallic components |
Country Status (3)
Country | Link |
---|---|
US (1) | US20030084917A1 (en) |
EP (1) | EP1310306A1 (en) |
DE (1) | DE10154922B4 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2671972A1 (en) * | 2012-06-08 | 2013-12-11 | Stockmeier Chemie GmbH & Co. KG | Use of a solution containing phosphonic acid and/or phosphonic acid derivatives during the degreasing of metal surfaces, degreasing solution and method for degreasing a metal surface |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007043563A1 (en) | 2007-09-13 | 2009-03-19 | Bell, Guido, Dr. | Etching, galvanizing, cleaning and photoresist developing of a substrate with megasonic support, comprise carrying out megasonic excitation by standard megasonic-oscillation of cool bar- and atomizer application |
KR101266550B1 (en) * | 2008-05-13 | 2013-05-24 | 신닛테츠스미킨 카부시키카이샤 | Production method of hot rolled steel sheet |
DE102009051951B4 (en) | 2009-11-04 | 2012-03-01 | Benteler Automobiltechnik Gmbh | Method for producing a hollow profile connection and hollow profile connection |
DE102013106001B4 (en) | 2013-06-10 | 2017-08-31 | Benteler Automobiltechnik Gmbh | Motor vehicle axle with subframe |
CN103487128A (en) * | 2013-09-30 | 2014-01-01 | 南京白云化工环境监测有限公司 | Electronic analytical balance capable of conducting self-cleaning |
CN106119878B (en) * | 2016-08-21 | 2018-08-07 | 浙江洲隆机器制造有限公司 | A kind of forging finished product lift descale device |
CN106824911A (en) * | 2017-03-24 | 2017-06-13 | 苏州林信源自动化科技有限公司 | A kind of multifunction ultrasonic cleaning device |
CN111438133A (en) * | 2020-04-30 | 2020-07-24 | 深圳市路维光电股份有限公司 | Chromium plate cleaning jig and cleaning method |
CN112609189A (en) * | 2020-12-09 | 2021-04-06 | 四川富乐德科技发展有限公司 | Method for cleaning Open Mask surface magnesium-silver material of OLED Mask |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29805737U1 (en) * | 1998-01-19 | 1998-07-16 | Claas Saulgau Gmbh | Device for removing oxide layers on components |
DE19817205A1 (en) * | 1998-04-17 | 1999-10-21 | Moessner Druckguswerk Gmbh | Method and apparatus for cleaning metal work pieces e.g. of magnesium or magnesium alloys |
JP2000288495A (en) * | 1999-04-01 | 2000-10-17 | Nomura Micro Sci Co Ltd | Cleaning method |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH422470A (en) * | 1963-08-10 | 1966-10-15 | Borg Holding Ag | Process for stripping and cleaning at least partly metallic structures, in particular thermal installations |
NO750215L (en) * | 1974-02-27 | 1975-08-28 | Pfizer | |
BE871631A (en) * | 1978-10-27 | 1979-04-27 | Centre Rech Metallurgique | PROCESS FOR CONTINUOUS PICKLING OF STEEL SHEETS. |
US4666528A (en) * | 1985-11-27 | 1987-05-19 | Halliburton Company | Method of removing iron and copper-containing scale from a metal surface |
SE8903452D0 (en) * | 1989-10-19 | 1989-10-19 | Lars Aake Hilmer Haakansson | PROCEDURE MAKES CONDITION OF YEARS AND STEEL SURFACES |
-
2001
- 2001-11-08 DE DE10154922A patent/DE10154922B4/en not_active Expired - Fee Related
-
2002
- 2002-10-02 EP EP02022059A patent/EP1310306A1/en not_active Withdrawn
- 2002-11-07 US US10/290,107 patent/US20030084917A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29805737U1 (en) * | 1998-01-19 | 1998-07-16 | Claas Saulgau Gmbh | Device for removing oxide layers on components |
DE19817205A1 (en) * | 1998-04-17 | 1999-10-21 | Moessner Druckguswerk Gmbh | Method and apparatus for cleaning metal work pieces e.g. of magnesium or magnesium alloys |
JP2000288495A (en) * | 1999-04-01 | 2000-10-17 | Nomura Micro Sci Co Ltd | Cleaning method |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 13 5 February 2001 (2001-02-05) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2671972A1 (en) * | 2012-06-08 | 2013-12-11 | Stockmeier Chemie GmbH & Co. KG | Use of a solution containing phosphonic acid and/or phosphonic acid derivatives during the degreasing of metal surfaces, degreasing solution and method for degreasing a metal surface |
Also Published As
Publication number | Publication date |
---|---|
DE10154922B4 (en) | 2004-04-01 |
US20030084917A1 (en) | 2003-05-08 |
DE10154922A1 (en) | 2003-05-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0302313B1 (en) | Process and apparatus for treating objects with solvents in a closed vessel | |
US3033710A (en) | Method of surface cleaning using ultrasonic energy | |
EP1310306A1 (en) | Process for cleaning metallic components | |
DE102010037077B4 (en) | Process for conditioning the surface of hardened corrosion-protected steel sheet components | |
US20110056516A1 (en) | Process for surface treatment of metals | |
EP1809791B1 (en) | Method for removing laser scales | |
EP0776256B1 (en) | Stainless steel acid treatment | |
US5858118A (en) | Stainless steel alkali treatment | |
US20090148335A1 (en) | Process for surface treatment of metals | |
AT411693B (en) | ELECTROCHEMICAL METHOD FOR CLEANING SURFACES OF METAL WORKPIECES | |
US5821211A (en) | De-scaling solution and methods of use | |
DE3728771A1 (en) | IMPROVED METHOD FOR ULTRASONIC CLEANING OF SOLID MOLDED PARTS | |
DE102019002417A1 (en) | Method and device for phosphating components made of ferrous metal | |
DE4218836C2 (en) | Process for removing surface contaminants | |
US20080202554A1 (en) | Process for surface treatment of metals | |
DE19911381A1 (en) | Steel workpiece edges and surfaces, e.g. of distributor cross-bore interiors, are deburred and/or smoothed by immersion in an aqueous chemical medium | |
DE3600415A1 (en) | Method and device for pretreating aluminium material intended for electroplating | |
DE4039479C2 (en) | ||
DE2504990A1 (en) | PROCESS FOR PREPARING METAL SURFACES FOR THE APPLICATION OF PROTECTIVE COATINGS | |
EP1477583B1 (en) | Installation and process for pickling steel materials | |
RU2780455C1 (en) | Method for protecting metal structures from corrosion | |
RU2714574C1 (en) | Method of chemical removal of defect layer from surface of parts after electroerosion cutting | |
DE10022026A1 (en) | Hydrogen-free pickling and descaling metal surfaces comprises pre-incubation without ultrasound treatment at elevated temperatures, and carrying out ultrasound treatment of the metal surfaces | |
Scale | Product Data Sheet | |
RU2375126C1 (en) | Method for ultrasonic cleaning of metal items from technological and operational contaminants |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
AKX | Designation fees paid | ||
REG | Reference to a national code |
Ref country code: DE Ref legal event code: 8566 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20031115 |