Emulsion type liquid lubricant for metal forming, process for preparing the lubricant and process for metal forming with the lubricant
Patent 4657685 Issued on April 14, 1987. Estimated Expiration Date: 
December 19, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 19, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3510426 Lubricant compositions for can forming Synthetic drawing and ironing lubricant Patent #: 4260502 InventorsAssigneeApplicationNo. 06/683639 filed on 12/19/1984US Classes:508/306, And chalcogen double bonded directly to the other ring carbon of the hetero ring which is adjacent to the ring oxygen (e.g., maleic anhydride copolymers, etc.)508/434, Hydrogen bonded directly to the phosphorus508/440, With organic -C(=O)O- compound72/42With particular lubricantExaminersPrimary: Howard, Jacqueline V.Attorney, Agent or FirmInternational ClassesC10M 161/00 (20060101)C10M 137/04 (20060101) C10M 137/00 (20060101) Foreign Application Priority Data1983-12-19 JPAbstractA substantially water-free, emulsion type liquid lubricant for metal forming which comprises:(a) a lubricating oil,(b) at least one of phosphoric acid esters represented by the general formula: ##STR1## wherein R is alkyl, alkylalkenyl or aryl; n is an integer of 1 to 2, and (c) an emulsifying agent,an average particle size of the phosphoric acid ester being 0.3 to 120 μm, can form a lubricating film having distinguished heat resistance and lubricating properties by virtue of the heat generated by deformation and friction during the metal forming only by wetting the surface of a metallic workpiece or a die or both with the lubricant and work effectively for preventing galling, and thus parts with a high reduction of area or parts of complicated shapes can be readily formed.A lubricating film having a lubricating effect equivalent to that of the conventional phasphate film can be simply obtained, greatly contributing to reduction in product cost.An emulsion type liquid lubricant having a prolonged emulsion stability can be prepared through emulsification with a high speed mixer having a stirring blade with wiremesh-like fine perforations, and thus articles or parts with uniform quality can be formed. | |
