EP0048216A1 - Oil-in-water emulsion for the cold rolling of aluminium and its alloys - Google Patents
Oil-in-water emulsion for the cold rolling of aluminium and its alloys Download PDFInfo
- 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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- EP
- European Patent Office
- Prior art keywords
- emulsion
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- water
- oil
- Prior art date
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- 239000007764 o/w emulsion Substances 0.000 title claims abstract description 7
- 238000005097 cold rolling Methods 0.000 title claims description 8
- 229910052782 aluminium Inorganic materials 0.000 title claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 7
- 229910045601 alloy Inorganic materials 0.000 title 1
- 239000000956 alloy Substances 0.000 title 1
- 239000004411 aluminium Substances 0.000 title 1
- 239000000839 emulsion Substances 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000003112 inhibitor Substances 0.000 claims abstract description 12
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims abstract description 9
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims abstract description 9
- TVXBFESIOXBWNM-UHFFFAOYSA-N Xylitol Natural products OCCC(O)C(O)C(O)CCO TVXBFESIOXBWNM-UHFFFAOYSA-N 0.000 claims abstract description 9
- HEBKCHPVOIAQTA-UHFFFAOYSA-N meso ribitol Natural products OCC(O)C(O)C(O)CO HEBKCHPVOIAQTA-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000600 sorbitol Substances 0.000 claims abstract description 9
- 239000000811 xylitol Substances 0.000 claims abstract description 9
- 235000010447 xylitol Nutrition 0.000 claims abstract description 9
- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 claims abstract description 9
- 229960002675 xylitol Drugs 0.000 claims abstract description 9
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 13
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims description 6
- -1 alkyl monocarboxylic acids Chemical class 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 235000010299 hexamethylene tetramine Nutrition 0.000 claims description 4
- 239000004312 hexamethylene tetramine Substances 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 4
- 150000002739 metals Chemical class 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 229920002367 Polyisobutene Polymers 0.000 claims description 3
- 239000003995 emulsifying agent Substances 0.000 claims description 3
- 239000003381 stabilizer Substances 0.000 claims description 3
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Polymers OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 claims 1
- JNYAEWCLZODPBN-UHFFFAOYSA-N 2-(1,2-dihydroxyethyl)oxolane-3,4-diol Polymers OCC(O)C1OCC(O)C1O JNYAEWCLZODPBN-UHFFFAOYSA-N 0.000 claims 1
- JNYAEWCLZODPBN-CTQIIAAMSA-N sorbitan Polymers OCC(O)C1OCC(O)[C@@H]1O JNYAEWCLZODPBN-CTQIIAAMSA-N 0.000 claims 1
- 238000010186 staining Methods 0.000 claims 1
- 238000005096 rolling process Methods 0.000 abstract description 7
- 239000000654 additive Substances 0.000 abstract 1
- 230000000996 additive effect Effects 0.000 abstract 1
- 235000011187 glycerol Nutrition 0.000 description 3
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 239000003899 bactericide agent Substances 0.000 description 2
- 230000000855 fungicidal effect Effects 0.000 description 2
- 239000000417 fungicide Substances 0.000 description 2
- NWGKJDSIEKMTRX-AAZCQSIUSA-N Sorbitan monooleate Polymers CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O NWGKJDSIEKMTRX-AAZCQSIUSA-N 0.000 description 1
- NWGKJDSIEKMTRX-MDZDMXLPSA-N Sorbitan oleate Polymers CCCCCCCC\C=C\CCCCCCCC(=O)OCC(O)C1OCC(O)C1O NWGKJDSIEKMTRX-MDZDMXLPSA-N 0.000 description 1
- NWGKJDSIEKMTRX-BFWOXRRGSA-N [(2r)-2-[(3r,4s)-3,4-dihydroxyoxolan-2-yl]-2-hydroxyethyl] (z)-octadec-9-enoate Polymers CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](O)C1OC[C@H](O)[C@H]1O NWGKJDSIEKMTRX-BFWOXRRGSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229940002612 prodrug Drugs 0.000 description 1
- 239000000651 prodrug Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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- 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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- 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
- 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
- C10M2207/022—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least two hydroxy groups
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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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- 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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- C10M2207/28—Esters
- C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
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- 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
- C10M2207/28—Esters
- 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
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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
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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
- C10N2040/241—Manufacturing joint-less pipes
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- C—CHEMISTRY; METALLURGY
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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
- C10N2040/242—Hot working
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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
- C10N2040/243—Cold working
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- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/244—Metal working of specific metals
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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
- C10N2040/244—Metal working of specific metals
- C10N2040/245—Soft metals, e.g. aluminum
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- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/244—Metal working of specific metals
- C10N2040/246—Iron or steel
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- C10N2040/20—Metal working
- C10N2040/244—Metal working of specific metals
- C10N2040/247—Stainless steel
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- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/01—Emulsions, colloids, or micelles
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.In addition to the usual components, the oil-in-water emulsion also contains xylitol and sorbitol as inhibitors against water stains. 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. This inhibitor additive largely prevents the reaction of the water phase with the metal surface freshly produced by the rolling process and thus prevents the formation of disturbing spots on the strip surface.
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.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.
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.Compared to oil-based rolling lubricants, 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. In addition to these purely economic factors, which largely meet rationalization efforts, it must also be taken into account that 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.
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.From DE-AS 26 32 142 an oil-in-water emulsion for cold rolling light metals is known, the alkyl monocarboxylic acid esters as reaction layer formers, polyisobutylene as hydrodynamic film formers, polyethoxylated sorbitanoleates as emulsifiers, unsaturated, long-chain alkyl monocarboxylic acids as inhibitors against hydrogen embrittlement, and hexamine embrittlement and rust amine embrittlement and hexamine embrittlement and rust formation as stabilizer, fungicide and bactericide, the rest contains deionized water.
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.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. When using the known oil-in-water emulsions, it is therefore absolutely necessary to remove the emulsion as completely as possible from the rolled strip surface immediately after the strip has left the rolling mill, for example by blowing it off with compressed air.
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.In view of these circumstances, 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 .
Die Aufgabe wird erfindungsgemäss dadurch gelöst, dass die Emulsion zusätzlich als Inhibitor gegen Wasserfleckenbildung Xylit und Sorbit enthält.The object is achieved according to the invention in that the emulsion additionally contains xylitol and sorbitol as an inhibitor against water stain formation.
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.The addition of 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.
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.It has further been found that the effect of the inhibitor composed of xylitol and sorbitol can be increased further by adding glycerol. Advantageously contain 1000 parts by weight of the emulsion 20 to 90 parts by weight of 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.The addition of xylitol, sorbitol and possibly glycerin does not influence the rolling process and does not lead to residues on the strip surface when the rolled strips are subsequently annealed.
Die Vorteilhaftigkeit des erfindungsgemässen Zusatzes des Inhibitors gegen Wasserfleckenbildung geht aus den Versuchen mit den nachstehend angeführten Kaltwalzemulsionen hervor.The advantageousness of the inventive addition of the water spot inhibitor is evident from the tests with the cold rolling emulsions listed below.
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.The organic components were combined at room temperature with simple stirring and deionized water was added. The two separate phases were then processed into an emulsion in an emulsifying machine.
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.With the above-mentioned emulsions, cold rolling tests with aluminum of purity Al 99.2 were carried out on a single quarter stand. Some of the stitch decreases were up to 92%. In no case were there any signs of water spots on the rolled aluminum strips. Likewise, none of the emulsions caused residues on the strip surface when the rolled strips were subsequently annealed.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT81810351T ATE9712T1 (en) | 1980-09-12 | 1981-08-27 | OIL-IN-WATER EMULSION FOR COLD ROLLING OF ALUMINUM AND ALUMINUM ALLOYS. |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH6863/80 | 1980-09-12 | ||
CH686380 | 1980-09-12 | ||
DE3035016A DE3035016C2 (en) | 1980-09-12 | 1980-09-17 | Oil-in-water emulsion for cold rolling light metals |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0048216A1 true EP0048216A1 (en) | 1982-03-24 |
EP0048216B1 EP0048216B1 (en) | 1984-10-03 |
Family
ID=25700297
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP81810351A Expired EP0048216B1 (en) | 1980-09-12 | 1981-08-27 | Oil-in-water emulsion for the cold rolling of aluminium and its alloys |
Country Status (12)
Country | Link |
---|---|
US (1) | US4326974A (en) |
EP (1) | EP0048216B1 (en) |
JP (1) | JPS5780496A (en) |
AR (1) | AR224704A1 (en) |
AU (1) | AU543996B2 (en) |
BR (1) | BR8105802A (en) |
CA (1) | CA1161827A (en) |
DE (1) | DE3035016C2 (en) |
DK (1) | DK150548C (en) |
IE (1) | IE51790B1 (en) |
PT (1) | PT73661B (en) |
ZA (1) | ZA815909B (en) |
Cited By (3)
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 (en) | 2006-07-28 | 2008-01-30 | Carl Freudenberg KG | Method of measuring a physical magnitude in a joint |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH646193A5 (en) * | 1980-09-12 | 1984-11-15 | Alusuisse | OIL-IN-WATER EMULSION FOR THE COLD ROLLING OF LIGHT METALS. |
JP3133141B2 (en) * | 1992-04-03 | 2001-02-05 | 日石三菱株式会社 | Metalworking oil composition |
TW548330B (en) * | 2001-09-21 | 2003-08-21 | Nippon Oil Corp | Lubricating oil composition for aluminum processing |
DE102009010757A1 (en) | 2008-02-28 | 2009-09-10 | F & B Gmbh Feuerschutz & Baustofftechnik | Lubricants and lubricants |
JP6854481B2 (en) * | 2017-04-05 | 2021-04-07 | トヨタ自動車北海道株式会社 | Water-soluble metal processing oil composition and metal processing method |
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DE2632142B2 (en) * | 1975-08-05 | 1978-11-02 | Schweizerische Aluminium Ag, Chippis (Schweiz) | Oil-in-water emulsion for cold rolling light metals |
FR2391261A1 (en) * | 1977-05-18 | 1978-12-15 | Shell France | Poly:ol(s) esp. D-sorbitol useful as corrosion inhibitors - for aluminium (alloys) esp. in aq. systems e.g. refrigerant liq. circuits |
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US3855136A (en) * | 1971-11-15 | 1974-12-17 | Kaiser Aluminium Chem Corp | Dispersion for hot rolling aluminum products |
US3835052A (en) * | 1971-11-15 | 1974-09-10 | Kaiser Aluminium Chem Corp | Emulsion for hot rolling aluminum products |
US3770636A (en) * | 1971-11-15 | 1973-11-06 | Kaiser Aluminium Chem Corp | Dispersion for hot rolling aluminum products |
US3923671A (en) * | 1974-10-03 | 1975-12-02 | Aluminum Co Of America | Metal working lubricant |
US4067817A (en) * | 1975-11-03 | 1978-01-10 | Emery Industries, Inc. | Modified triglyceride metal working lubricants |
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1980
- 1980-09-17 DE DE3035016A patent/DE3035016C2/en not_active Expired
- 1980-12-08 US US06/213,849 patent/US4326974A/en not_active Expired - Lifetime
-
1981
- 1981-08-20 AU AU74387/81A patent/AU543996B2/en not_active Ceased
- 1981-08-26 ZA ZA815909A patent/ZA815909B/en unknown
- 1981-08-27 DK DK379981A patent/DK150548C/en not_active IP Right Cessation
- 1981-08-27 EP EP81810351A patent/EP0048216B1/en not_active Expired
- 1981-09-09 AR AR286702A patent/AR224704A1/en active
- 1981-09-09 CA CA000385481A patent/CA1161827A/en not_active Expired
- 1981-09-10 BR BR8105802A patent/BR8105802A/en unknown
- 1981-09-11 IE IE2122/81A patent/IE51790B1/en unknown
- 1981-09-11 PT PT73661A patent/PT73661B/en unknown
- 1981-09-11 JP JP56143712A patent/JPS5780496A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US3507792A (en) * | 1967-11-30 | 1970-04-21 | Sinclair Research Inc | Biodegradable,water-dispersible lubricant compositions |
DE2632142B2 (en) * | 1975-08-05 | 1978-11-02 | Schweizerische Aluminium Ag, Chippis (Schweiz) | Oil-in-water emulsion for cold rolling light metals |
FR2391261A1 (en) * | 1977-05-18 | 1978-12-15 | Shell France | Poly:ol(s) esp. D-sorbitol useful as corrosion inhibitors - for aluminium (alloys) esp. in aq. systems e.g. refrigerant liq. circuits |
Cited By (4)
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 (en) | 2006-07-28 | 2008-01-30 | Carl Freudenberg KG | Method of measuring a physical magnitude in a joint |
FR2904396A1 (en) | 2006-07-28 | 2008-02-01 | Freudenberg Meillor Soc Par Ac | METHOD FOR MEASURING A PHYSICAL SIZE IN A JOINT |
Also Published As
Publication number | Publication date |
---|---|
DK150548C (en) | 1987-10-05 |
ZA815909B (en) | 1982-08-25 |
DK379981A (en) | 1982-03-13 |
DE3035016C2 (en) | 1985-02-21 |
PT73661A (en) | 1981-10-01 |
AU7438781A (en) | 1982-03-18 |
AR224704A1 (en) | 1981-12-30 |
IE51790B1 (en) | 1987-04-01 |
US4326974A (en) | 1982-04-27 |
DK150548B (en) | 1987-03-23 |
AU543996B2 (en) | 1985-05-16 |
JPS5780496A (en) | 1982-05-20 |
IE812122L (en) | 1982-03-12 |
PT73661B (en) | 1983-10-20 |
DE3035016A1 (en) | 1982-04-01 |
JPH0227391B2 (en) | 1990-06-15 |
BR8105802A (en) | 1982-05-25 |
CA1161827A (en) | 1984-02-07 |
EP0048216B1 (en) | 1984-10-03 |
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