Lubricant for improved surface quality of cast aluminum and method

A lubricant composition for use in the casting of aluminum alloys comprising:

• a casting lubricant base selected from the group consisting of glycerol trioleate, ethyl oleate, methyl oleate, butyl ricinoleate, methyl acetyl ricinoleate, butyl oleate, glycerol triacetyl ricinoleate, butyl acetyl ricinoleate, polyalphaolefins, polyisobutylenes, castor oil, peanut oil, corn oil, canola oil, cottonseed oil, olive oil, rapeseed oil, safflower oil, sesame oil, sunflower oil, soybean oil, linseed oil, coconut oil, palm kernel oil, neat's-foot oil, lard oil, tallow oil, and combinations thereof, a homogenous distribution of water in the casting lubricant base, the water ranging about 0.05% to about 0.5% by weight, surfactant, and high viscosity organic material, wherein the homogenous distribution of water in the casting lubricant base and the surfactant provide an ingot lubricant that forms a uniform distribution of surface oxide at a meniscus formed between molten aluminum and an ingot mold sidewall during continuous or semi-continuous casting.

A lubricant composition for use in the casting of aluminum alloys comprising:

• a casting lubricant oil base selected from the group consisting of glycerol trioleate, ethyl oleate, methyl oleate, butyl ricinoleate, methyl acetyl ricinoleate, butyl oleate, glycerol triacetyl ricinoleate, butyl acetyl ricinoleate, castor oil, peanut oil, corn oil, canola oil, cottonseed oil, olive oil, rapeseed oil, safflower oil, sesame oil, sunflower oil, soybean oil, linseed oil, coconut oil, palm kernel oil, neat's-foot oil, lard oil, tallow oil, and combinations thereof;
• a homogenous distribution of water in the casting lubricant base, the water ranging about 0.05% to about 0.5% by weight;
• surfactant, and high viscosity organic material, wherein the homogenous distribution of water in the casting lubricant base, the surfactant, and the high viscosity organic material provide an ingot lubricant that forms a uniform distribution of surface oxide at a meniscus formed between molten aluminum and an ingot mold sidewall during continuous or semi-continuous casting.

A lubricant composition for use in the casting of aluminum alloys comprising:

• an existing casting lubricant oil base selected from the group consisting of glycerol trioleate, castor oil, and combinations thereof, a homogenous distribution of water in the casting lubricant base, the water ranging about 0.05% to about 0.5% by weight;
• surfactant, and high viscosity organic material, wherein the homogenous distribution of water in the casting lubricant base, the surfactant and the high viscosity organic material provide an ingot lubricant that forms a uniform distribution of surface oxide at a meniscus formed between molten aluminum and an ingot mold sidewall during continuous or semi-continuous casting.

An ingot lubricant composition for use in the casting of aluminum alloys comprising glycerol trioleate, about 0.05% to about 0.50% by weight of water, less than about 0.25% by weight of surfactant, and about 5% to about 90% by weight of high viscosity organic material.