Cooling lubricant for cold rolling aluminum
AssigneeSpeira GmbH
InventorsStephan Draese, Thomas Graf, Oliver Seiferth, Volker Schmitz
Life of this patent
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Abstract
Described is a cooling lubricant for cold rolling aluminum, which includes a mineral oil-based or synthetic base oil and a polyalkylene glycol or a compound with a polyalkylene oxide structure. Further, the cooling lubricant is not water-soluble or miscible with water, and the cooling lubricant is substantially free of fatty acids and fatty alcohols.
Claims10
A method, comprising:
- utilizing a cooling lubricant for rolling aluminum, the cooling lubricant comprising:
- a mineral oil-based or synthetic base oil,
- a polyalkylene glycol selected from the group consisting of polyethylene glycol, polypropylene glycol, polybutylene glycol, an ethoxylated fatty alcohol, and combinations thereof, wherein the ethoxylated fatty alcohol is a polyethylene glycol monododecyl ether,
- wherein
- the cooling lubricant is not water-soluble or miscible with water,
- the cooling lubricant is substantially free of fatty acids and fatty alcohols, wherein substantially free means that a fatty acid as a lubricating additive is contained in a proportion of at most 0.2 wt. %, based on the mass of the cooling lubricant, and a fatty alcohol as a lubricating additive is contained in a proportion of at most 0.4 wt. %, based on the mass of the cooling lubricant,
- the cooling lubricant is free of straight-chain olefins.
A method for cold rolling an aluminum product that is free of visually discernible defect patterns caused by fatty acids, comprising using a cooling lubricant for cold rolling an aluminum strip, the cooling lubricant comprising:
- a mineral oil-based or synthetic base oil,
- a polyalkylene glycol selected from a group consisting of polyethylene glycol, polypropylene glycol, polybutylene glycol, an ethoxylated fatty alcohol, and combinations thereof, wherein the ethoxylated fatty alcohol is a polyethylene glycol monododecyl ether,
- wherein
- the cooling lubricant is not water-soluble or miscible with water,
- the cooling lubricant is substantially free of fatty acids and fatty alcohols, wherein substantially free means that a fatty acid as a lubricating additive is contained in a proportion of at most 0.2 wt. %, based on the mass of the cooling lubricant, and a fatty alcohol as a lubricating additive is contained in a proportion of at most 0.4 wt. %, based on the mass of the cooling lubricant,
- the cooling lubricant is free of straight-chain olefins.
Dependencies are inferred from the claim text.