| abstract |
A metal-working lubricant comprises a solvent carrier (preferably mineral oil, particularly of viscosity approximately 300 seconds (Saybolt)/100 DEG F. and gravity (API) 21-23/60 DEG F., but possibly also other organic solvents such as hexylene-, propylene- and diethylene-glycols, and the glycol ethers) containing dissolved sugar cane oil or crude cane wax or a mixture thereof (preferably 5-30% by wt. of the solvent carrier and particularly 10-20%). It is preferred that the solute be a mixture of about 2 parts by wt. of crude cane wax to 1 part by wt. of sugar cane oil. The invention includes also an aqueous emulsion of the above described lubricant especially one containing mineral oil; it is preferred that the non-aqueous part of the emulsion forms 15% by weight of the latter and the emulsion may also contain an emulsifying agent (e.g. sorbitol mono oleate). In an example of the application of these compositions, a surface film of the latter is applied to a metal surface, the metal cold worked and then annealed, without removing the said film. Specification 671,816 is referred to. |