EP0048216A1 - Öl-in-Wasser-Emulsion zum Kaltwalzen von Aluminium und Aluminiumlegierungen - Google Patents

Öl-in-Wasser-Emulsion zum Kaltwalzen von Aluminium und Aluminiumlegierungen Download PDF

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Publication number
EP0048216A1
EP0048216A1 EP81810351A EP81810351A EP0048216A1 EP 0048216 A1 EP0048216 A1 EP 0048216A1 EP 81810351 A EP81810351 A EP 81810351A EP 81810351 A EP81810351 A EP 81810351A EP 0048216 A1 EP0048216 A1 EP 0048216A1
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Prior art keywords
emulsion
weight
parts
water
oil
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EP81810351A
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French (fr)
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EP0048216B1 (de
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Rudolf Baur
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Alcan Holdings Switzerland AG
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Alusuisse Holdings AG
Schweizerische Aluminium AG
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M173/00—Lubricating compositions containing more than 10% water
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/02—Water
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C10M2205/026—Butene
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02—Hydroxy compounds
    • C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/129—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of thirty or more carbon atoms
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/281—Esters of (cyclo)aliphatic monocarboxylic acids
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/283—Esters of polyhydroxy compounds
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
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    • C10M2207/286—Esters of polymerised unsaturated acids
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/40—Fatty vegetable or animal oils
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/40—Fatty vegetable or animal oils
    • C10M2207/404—Fatty vegetable or animal oils obtained from genetically modified species
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    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/26—Amines
    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/046—Polyamines, i.e. macromoleculars obtained by condensation of more than eleven amine monomers
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    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/06—Macromolecular compounds obtained by functionalisation op polymers with a nitrogen containing compound
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    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C10N2040/24—Metal working without essential removal of material, e.g. forming, gorging, drawing, pressing, stamping, rolling or extruding; Punching metal
    • C—CHEMISTRY; METALLURGY
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    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C10N2040/241—Manufacturing joint-less pipes
    • C—CHEMISTRY; METALLURGY
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    • C10N2040/242—Hot working
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    • C10N2040/00—Specified use or application for which the lubricating composition is intended
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    • C10N2040/243—Cold working
    • C—CHEMISTRY; METALLURGY
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    • C10N2040/00—Specified use or application for which the lubricating composition is intended
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    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
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    • C10N2040/245—Soft metals, e.g. aluminum
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Definitions

  • the invention relates to an oil-in-water emulsion for the cold rolling of light metals, in particular aluminum and aluminum alloys, with, for example, polyisobutylene as a hydrodynamic film former, alkyl monocarboxylic acid esters as reaction layer former, polyethoxylated sorbitan oleate as an emulsifier, unsaturated, long-chain alkyl monocarboxylic acid prodrug, as an inhibitor against hydrogen rust inhibitor against hydrogen, Hexamethylenetetramine as stabilizer, fungicide and bactericide as well as deionized water.
  • polyisobutylene as a hydrodynamic film former
  • alkyl monocarboxylic acid esters as reaction layer former
  • polyethoxylated sorbitan oleate as an emulsifier
  • unsaturated, long-chain alkyl monocarboxylic acid prodrug as an inhibitor against hydrogen rust inhibitor against hydrogen
  • Hexamethylenetetramine as stabilizer
  • oil-in-water emulsions allow much better cooling due to the greater heat of evaporation of water and thus greater stitch reduction and / or increased rolling speed.
  • aqueous rolling agents pose greatly reduced exhaust air problems and are less dependent on oil. For this reason, many attempts have been made in the light metal industry, in particular in the aluminum industry, to use oil-in-water emulsions when cold-rolling strips.
  • a major disadvantage of the oil-in-water emulsions belonging to the state of the art is that the the rolling process reacts freshly generated metal surface with water within a few seconds. This superficial corrosion attack as a result of the water phase leads to annoying spots on the belt surface. The reduced surface quality of a tape or film due to the formation of these so-called water stains is inadequate for many applications.
  • the inventor has set himself the task of creating an oil-in-water emulsion of the type mentioned at the outset for cold rolling light metals, in particular aluminum and aluminum alloys, with which the formation of water spots on the freshly rolled strip surface can be reduced .
  • the object is achieved according to the invention in that the emulsion additionally contains xylitol and sorbitol as an inhibitor against water stain formation.
  • xylitol and sorbitol together to form an oil-in-water emulsion largely prevents the formation of water stains. It is therefore no longer absolutely necessary to remove the emulsion from the surface of the freshly rolled strips.
  • the inhibitor is already fully effective when 1000 parts by weight of the emulsion contain 1 to 30 parts by weight of xylitol and sorbitol.
  • the effect of the inhibitor composed of xylitol and sorbitol can be increased further by adding glycerol.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Metal Rolling (AREA)

Abstract

Die Oel-in-Wasser-Emulsion enthält neben den üblichen Komponenten zusätzlich Xylit und Sorbit als Inhibitor gegen Wasserfleckenbildung. Der Inhibitor ist bereits voll wirksam, wenn 1000 Gewichtsteile der Emulsion je 1 bis 30 Gewichtsteile Xylit und Sorbit enthalten. Durch diesen Inhibitorzusatz wird die Reaktion der Wasserphase mit der durch den Walzvorgang frisch erzeugten Metalloberfläche weitgehend unterbunden und damit die Bildung von störenden Flecken auf der Bandoberfläche verhindert.

Description

  • Die Erfindung bezieht sich auf eine Oel-in-Wasser-Emulsion zum Kaltwalzen von Leichtmetallen, insbesondere Aluminium und Aluminiumlegierungen, mit beispielsweise Polyisobutylen als hydrodynamischen Filmbildner, Alkylmonocarbonsäurestern als Reaktionsschichtbildner, polyäthoxylierten Sorbitanoleaten als Emulgator, ungesättigten, langkettigen Alkylmonocarbonsäuren als Inhibitor gegen Wasserstoffversprödung und Rostbildung, Hexamethylentetramin als Stabilisator, Fungicid und Baktericid sowie deionisiertem Wasser.
  • Verglichen mit Walzschmiermitteln auf Oelbasis ermöglichen Oel-in-Wasser-Emulsionen wegen der grösseren Verdampfungswärme von Wasser eine viel bessere Kühlung und damit eine grössere Stichabnahme und/oder erhöhte Walzgeschwindigkeit. Neben diesen rein wirtschaftlichen Faktoren, die Rationalisierungsbestrebungen weitgehend entgegenkommen, muss weiter berücksichtigt werden, dass wässrige Walzmittel stark verminderte Abluftprobleme stellen und weniger vom Erdöl abhängig sind. Deshalb sind in der Leichtmetallindustrie, insbesondere in der Aluminiumindustrie, schon viele Versuche unternommen worden, beim Kaltwalzen von Bändern Oel-in-Wasser-Emulsionen einzusetzen.
  • Aus der DE-AS 26 32 142 ist eine Oel-in-Wasser-Emulsion zum Kaltwalzen von Leichtmetallen bekannt, die Alkylmonocarbonsäureester als Reaktionsschichtbildner, Polyisobutylen als hydrodynamischen Filmbildner, polyäthoxylierte Sorbitanoleate als Emulgator, ungesättigte, langkettige Alkylmonocarbonsäuren als Inhibitor gegen Wasserstoffversprödung und Rostbildung, Hexamethylentetramin als Stabilisator, Fungicid und Baktericid, Rest deionisiertes Wasser enthält.
  • Ein wesentlicher Nachteil der dem Stand der Technik zugehörigen Oel-in-Wasser-Emulsionen liegt darin, dass die durch den Walzvorgang frisch erzeugte Metalloberfläche innerhalb weniger Sekunden mit Wasser reagiert. Dieser oberflächliche Korrosionsangriff als Folge der Wasserphase führt zu störenden Flecken auf der Bandoberfläche. Die durch die Bildung dieser sogenannten Wasserflecken verminderte Oberflächenqualität eines Bandes bzw. einer Folie ist für viele Anwendungszwecke ungenügend. Es ist deshalb bei Anwendung der bekannten Oel-in-Wasser-Emulsionen unbedingt erforderlich, die Emulsion unmittelbar nach dem Austritt des Bandes aus dem Walzwerk beispielsweise durch Abblasen mit Druckluft möglichst vollständig von der gewalzten Bandoberfläche zu entfernen.
  • Angesichts dieser Gegebenheiten hat sich der Erfinder die Aufgabe gestellt, eine Oel-in-Wasser-Emulsion der eingangs erwähnten Art zum Kaltwalzen von Leichtmetallen, inbesondere Aluminium und Aluminiumlegierungen, zu schaffen, mit welcher die Bildung von Wasserflecken auf der frisch gewalzten Bandoberfläche vermindert werden kann.
  • Die Aufgabe wird erfindungsgemäss dadurch gelöst, dass die Emulsion zusätzlich als Inhibitor gegen Wasserfleckenbildung Xylit und Sorbit enthält.
  • Durch den gemeinsamen Zusatz von Xylit und Sorbit zu einer Oel-in-Wasser-Emulsion wird die Bildung von Wasserflecken weitgehend unterbunden. Ein Entfernen der Emulsion von der Oberfläche der frisch gewalzten Bänder ist somit nicht mehr unbedingt erforderlich. Der Inhibitor ist bereits voll wirksam, wenn 1000 Gewichtsteile der Emulsion je 1 bis 30 Gewichtsteile Xylit und Sorbit enthalten.
  • Es hat sich des weiteren herausgestellt, dass die Wirkung des aus Xylit und Sorbit zusammengesetzten Inhibitors durch die Zugabe von Glycerin noch gesteigert werden kann. Vorteilhafterweise enthalten 1000 Gewichtsteile der Emulsion 20 bis 90 Gewichtsteile Glycerin.
  • Der Zusatz von Xylit, Sorbit und gegebenenfalls Glycerin beeinflusst den Walzvorgang nicht und führt bei einer anschliessenden Glühung der gewalzten Bänder auch nicht zu Rückständen auf der Bandoberfläche.
  • Die Vorteilhaftigkeit des erfindungsgemässen Zusatzes des Inhibitors gegen Wasserfleckenbildung geht aus den Versuchen mit den nachstehend angeführten Kaltwalzemulsionen hervor.
    • Emulsion 1
  • Figure imgb0001
    • Emulsion 2
  • Figure imgb0002
    • Emulsion 3
  • Figure imgb0003
  • Die organischen Komponenten wurden bei Raumtemperatur unter einfachem Rühren zusammengegeben und mit deionisiertem Wasser versetzt. Die beiden getrennten Phasen wurden anschliessend in einer Emulgiermaschine zu einer Emulsion verarbeitet.
  • Mit den vorstehend genannten Emulsionen wurden auf einem Einzelquartogerüst Kaltwalzversuche mit Aluminium der Reinheit Al 99,2 durchgeführt. Die Stichabnahmen betrugen teilweise bis zu 92%. An den gewalzten Aluminiumbändern konnten in keinem Fall Anzeichen von Wasserfleckenbildung beobachtet werden. Ebenso führte keine der Emulsionen bei einer anschliessenden Glühung der gewalzten Bänder zu Rückständen auf der Bandoberfläche.

Claims (4)

1. Oel-in-Wasser-Emulsion zum Kaltwalzen von Leichtmetallen, insbesondere Aluminium und Aluminiumlegierungen, mit beispielsweise Polyisobutylen als hydrodynamischen Filmbildner, Alkylmonocarbonsäureestern als Reaktionsschichtbildner, polyäthoxylierten Sorbitanoleaten als Emulgator, ungesättigten, langkettigen Alkylmonocarbonsäuren als Inhibitor gegen Wasserstoffversprödung und Rostbildung, Hexamethylentetramin als Stabilisator, Fungicid und Baktericid sowie deionisiertem Wasser, dadurch gekennzeichnet, dass die Emulsion zusätzlich als Inhibitor gegen Wasserfleckenbildung Xylit und Sorbit enthält.
2. Emulsion nach Anspruch 1, dadurch gekennzeichnet, dass 1000 Gewichtsteile der Emulsion je 1 bis 30 Gewichtsteile Xylit und Sorbit enthalten.
3. Emulsion nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass sie zusätzlich Glycerin enthält.
4. Emulsion nach Anspruch 3, dadurch gekennzeichnet, dass 1000-Gewichtsteile der Emulsion 20 bis 90 Gewichtsteile Glycerin enthalten.
EP81810351A 1980-09-12 1981-08-27 Öl-in-Wasser-Emulsion zum Kaltwalzen von Aluminium und Aluminiumlegierungen Expired EP0048216B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81810351T ATE9712T1 (de) 1980-09-12 1981-08-27 Oel-in-wasser-emulsion zum kaltwalzen von aluminium und aluminiumlegierungen.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH6863/80 1980-09-12
CH686380 1980-09-12
DE3035016A DE3035016C2 (de) 1980-09-12 1980-09-17 Oel-in-Wasser-Emulsion zum Kaltwalzen von Leichtmetallen

Publications (2)

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EP0048216A1 true EP0048216A1 (de) 1982-03-24
EP0048216B1 EP0048216B1 (de) 1984-10-03

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EP81810351A Expired EP0048216B1 (de) 1980-09-12 1981-08-27 Öl-in-Wasser-Emulsion zum Kaltwalzen von Aluminium und Aluminiumlegierungen

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US (1) US4326974A (de)
EP (1) EP0048216B1 (de)
JP (1) JPS5780496A (de)
AR (1) AR224704A1 (de)
AU (1) AU543996B2 (de)
BR (1) BR8105802A (de)
CA (1) CA1161827A (de)
DE (1) DE3035016C2 (de)
DK (1) DK150548C (de)
IE (1) IE51790B1 (de)
PT (1) PT73661B (de)
ZA (1) ZA815909B (de)

Cited By (3)

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Publication number Priority date Publication date Assignee Title
WO1991018074A1 (en) * 1990-05-14 1991-11-28 Idemitsu Kosan Co., Ltd. Lubricant composition for metal working
US5211861A (en) * 1988-09-19 1993-05-18 Ausimont S.R.L. Liquid aqueous compositions comprising perfluoropolyethereal compounds suitable as lubricants in the plastic processing of metals
EP1882873A1 (de) 2006-07-28 2008-01-30 Carl Freudenberg KG Verfahren zum Messen einer physikalischen Größe in einer Fuge

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH646193A5 (de) * 1980-09-12 1984-11-15 Alusuisse Oel-in-wasser-emulsion zum kaltwalzen von leichtmetallen.
JP3133141B2 (ja) * 1992-04-03 2001-02-05 日石三菱株式会社 金属加工油組成物
TW548330B (en) * 2001-09-21 2003-08-21 Nippon Oil Corp Lubricating oil composition for aluminum processing
DE102009010757A1 (de) 2008-02-28 2009-09-10 F & B Gmbh Feuerschutz & Baustofftechnik Gleit- und Schmiermittel
JP6854481B2 (ja) * 2017-04-05 2021-04-07 トヨタ自動車北海道株式会社 水溶性金属加工油組成物、及び金属加工方法

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US3507792A (en) * 1967-11-30 1970-04-21 Sinclair Research Inc Biodegradable,water-dispersible lubricant compositions
DE2632142B2 (de) * 1975-08-05 1978-11-02 Schweizerische Aluminium Ag, Chippis (Schweiz) Öl-in-Wasser-Emulsion zum Kaltwalzen von Leichtmetalien
FR2391261A1 (fr) * 1977-05-18 1978-12-15 Shell France Inhibiteurs de corrosion pour l'aluminium ou ses alliages

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US3855136A (en) * 1971-11-15 1974-12-17 Kaiser Aluminium Chem Corp Dispersion for hot rolling aluminum products
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US3507792A (en) * 1967-11-30 1970-04-21 Sinclair Research Inc Biodegradable,water-dispersible lubricant compositions
DE2632142B2 (de) * 1975-08-05 1978-11-02 Schweizerische Aluminium Ag, Chippis (Schweiz) Öl-in-Wasser-Emulsion zum Kaltwalzen von Leichtmetalien
FR2391261A1 (fr) * 1977-05-18 1978-12-15 Shell France Inhibiteurs de corrosion pour l'aluminium ou ses alliages

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5211861A (en) * 1988-09-19 1993-05-18 Ausimont S.R.L. Liquid aqueous compositions comprising perfluoropolyethereal compounds suitable as lubricants in the plastic processing of metals
WO1991018074A1 (en) * 1990-05-14 1991-11-28 Idemitsu Kosan Co., Ltd. Lubricant composition for metal working
EP1882873A1 (de) 2006-07-28 2008-01-30 Carl Freudenberg KG Verfahren zum Messen einer physikalischen Größe in einer Fuge
FR2904396A1 (fr) 2006-07-28 2008-02-01 Freudenberg Meillor Soc Par Ac Procede de mesure d'une grandeur physique dans un joint

Also Published As

Publication number Publication date
BR8105802A (pt) 1982-05-25
IE812122L (en) 1982-03-12
US4326974A (en) 1982-04-27
DE3035016C2 (de) 1985-02-21
CA1161827A (en) 1984-02-07
JPS5780496A (en) 1982-05-20
JPH0227391B2 (de) 1990-06-15
DE3035016A1 (de) 1982-04-01
DK150548C (da) 1987-10-05
IE51790B1 (en) 1987-04-01
AU7438781A (en) 1982-03-18
ZA815909B (en) 1982-08-25
AR224704A1 (es) 1981-12-30
EP0048216B1 (de) 1984-10-03
DK379981A (da) 1982-03-13
PT73661A (en) 1981-10-01
DK150548B (da) 1987-03-23
PT73661B (en) 1983-10-20
AU543996B2 (en) 1985-05-16

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