Method of lubricating steel strip for cold rolling, particularly temper rolling
January 24, 2015. 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 3698932 Coated sheet metal and method of forming products therefrom Hot melt metal working lubricants Metal workpieces coated with ester-based hot melt metal working lubricants Metal working lubricant Hot melt metalworking lubricant Composite-coated flat-rolled steel can stock and can product Oil-in-water dry film prelube emulsion Coiled steel strip with solid lubricant coating Thermoplastic acrylic coated steel sheet InventorsAssigneeApplicationNo. 377453 filed on 01/24/1995US Classes:72/41, Lubricating72/42, With particular lubricant72/47, Metal coating508/433, Divalent chalcogen double bonded directly to the phosphorus508/436, Organic nitrogen compound salt of phosphorus acid, or organic nitrogen compound is present with phosphorus acid508/437, With organic -C(=O)O- compound508/440With organic -C(=O)O- compoundExaminersPrimary: Larson, Lowell A.Assistant: Butler, Rodney Attorney, Agent or FirmForeign Patent References
International ClassesB21B 045/02B21B 045/00 AbstractA method of processing steel strip such that the steel strip can be temper rolled at the increased speeds and better surface texture control of prior art dry lubricants, yet the steel strip can be temper rolled with less frequent replacement of temper mill working rolls. Further, the resulting steel strip has increased stretchability and can be temper rolled to achieve sufficient reduction of YPE at lower working roll pressures and/or lower strip tension, previously only effective when the steel strip was lubricated with a wet lubricant film. Enhanced corrosion resistance is another advantage of this process.Other References
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