Hot rolling process for rolling aluminium and aluminium alloys sheets
OwnerFrancis Prince, Jean-Yves Henri Claireinventors
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Abstract
The present invention relates to a hot rolling process for rolling aluminium and aluminium alloys sheets, comprising applying an effective amount of an oil-in-water emulsion comprising water and a water-soluble oil composition comprising a base stock oil and, based on the total weight of the water-soluble oil composition, from 1 to 80% by weight of di(2-ethylhexyl) adipate ester. The invention also relates to a water-soluble aluminium and aluminium hot rolling oil composition, to an oil-in water emulsion prepared therewith and to the use of said oil-in-water emulsion in a hot rolling process.
Claims15
Hot rolling process for rolling aluminium and aluminium alloys sheets, comprising applying an effective amount of an oil-in-water emulsion comprising water and a water-soluble oil composition comprising a base stock oil and, based on the total weight of the water-soluble oil composition, from 1 to 80% by weight of di(2-ethylhexyl) adipate ester.
Hot rolling process according to claim 11, wherein the hot rolling process is carried out in a finishing or tandem mill and the emulsion comprises, based on the total volume of the emulsion, from 5 to 7% by volume of said water-soluble oil composition.
Water-soluble aluminium and aluminium alloys hot rolling oil composition comprising, in weight percentages based on the total weight of the composition:
- 0.1-0.5% of trialkyl (C1-4) phenol;
- 0.5-4.0% of trialkyl (C3-10) phosphate ester;
- 5-15% of di(2-ethylhexyl) adipate ester;
- 5-15% of organic fatty acid (C12-20);
- 0.5-2% of 5-carboxy 4-hexyl 2-cyclohexen 1-octanoic acid;
- 1-3% of alkylene (C2-6)glycol;
- 0.3-1% of ethoxylated alcohols (C5-14, comprising 2-10 CH2O groups);
- 2-5% of trialkanol amine (C2-4);
- the balance being a mixture of naphthenic and paraffinic lube base oils.
Dependencies are inferred from the claim text.