Aqueous one step type lubricanting agent for efficient cold forging

Abstract

A new aqueous lubricant of one process type used for high efficient cold forging of metallic materials is disclosed. The aqueous lubricant produces less industrial waste than conventional process, requires simple processing steps and provides improved lubricative performance. The aqueous lubricant of the invention is comprising (A) a water soluble inorganic salt, (B) wax and (C) a metal salt of a fatty acid, those are dissolved or dispersed in water, and the ratio of (B)/(A) is 0.60˜0.70 and the ratio of (C)/(A) is 0.1˜0.3. The water soluble inorganic salt may be a sulfates, silicates, borates, molybdates and tungstates. The wax may be a synthetic wax of which melting point is in a range of 70˜150° C. The metal salt of a fatty acid may be a product prepared by reacting of C12˜C26 saturated fatty acids with metal selected from zinc, calcium, barium, aluminum magnesium and lithium.

1 . An aqueous lubricant of one process type used for high efficient cold forging characterized in that the aqueous lubricant comprises (A) a water soluble inorganic salt, (B) wax and (C) a metal salt of a fatty acid, wherein these components are dissolved or dispersed in an aqueous solution and the ratio by weight in solid state of (B)/(A) is in a range of 0.60˜0. 70 and of (C)/(A) is in a range of 0.1˜10.3.  
     
     
         2 . The aqueous lubricant of one process type used for high efficient cold forging according to  claim 1 , wherein the water soluble inorganic salt is at least one selected from a group consisting of sulfate, silicate, borate, molybdate and tungstate.  
     
     
         3 . The aqueous lubricant of one process type used for high efficient cold forging according to  claim 1  or  2 , wherein the wax is a synthetic wax being dispersed in water and having the melting point of 70˜150° C.  
     
     
         4 . The aqueous lubricant of one process type used for high efficient cold forging according to  claim 1 ,  2  or  3 , wherein the metal salt of a fatty acid is a compound obtained by reacting saturated fatty acid of C12˜C26 with at least one metal selected from a group consisting of zinc, calcium, barium, aluminum, magnesium and lithium.