Method of controlling water base-process type lubricating and processing fluid for cold forging

Abstract

An effective and simple controlling process for an aqueous lubricant of one process type used for cold forging of metallic material are explained. The process is carried out on an aqueous lubricant of one process type containing at least one water soluble inorganic salt. In order to obtain a preferred weight of the lubricative coating layer by applying this aqueous lubricant, the electric conductivity of the aqueous lubricant are measured and controlled in a preferred level by supplementing a constituent to the aqueous lubricant.

1 . A process for controlling aqueous lubricant of one process type containing at least one water soluble inorganic salt and is used for cold forging, wherein concentration of the aqueous lubricant is controlled by controlling electric conductivity of the aqueous lubricant at the time of processing, and the electric conductivity of the aqueous lubricant is controlled by supplementing constituent to the aqueous lubricant.  
     
     
         2 . The process for controlling aqueous lubricant of one process type used for cold forging according to  claim 1 , wherein one water soluble inorganic salt is at least one selected from a group consisting of sulphate, silicate, borate, molybdate and tungstate.