Title: Method for cold rolling metals using aqueous lubricant comprising at least a carboxylic acid, a phosphate easter and wax
Application Number: 02805411 Application Date: 2002.02.05
Publication Number: 1494584 Publication Date: 2004.05.05
Approval Pub. Date: 2006.08.30 Granted Pub. Date: 2006.08.30
International Classifi-cation: C10M173/02,C10M171/06,C10N30/06,C10N40/24
Applicant(s) Name: Rhodia Chimie Address:
Inventor(s) Name: J-G. Lehelloco
Attorney & Agent: long chuangong
Abstract:
     The invention concerns a method for cold rolling metals using an aqueous lubricant comprising: (1) at least a mixture based on at least an acid selected among saturated or unsaturated mono- or poly-carboxylic acids, comprising 5 to 40 carbon atoms; at least an acid phosphate ester of formula (RO)x-P(=O)(OH)x , wherein: R is a hydrocarbon radical, optionally polyalkoxylated; x and x being equal to 3; the carboxylic acid and/or the acid phosphate ester being optionally neutralised by an organic or mineral base; and (2) at least a natural or synthetic wax exhibiting a melting point not less than 50 C and having an average particle size ranging between 0.5 and 10 μｍ. The use of said lubricant enables to increase the productivity of the method by at least 15 % relative to a method using a conventional lubricant.
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