| 摘要 |
PURPOSE:To detect each constituent of a two-constituent system aqueous machining liquid in a simple method by constituting a discharge or electrolytic machining device so as to detect the composition of each constituent based on measured values of the electric conductivity and the specific gravity of an aqueous machining liquid to be measured. CONSTITUTION:In a method detecting each constituent component of a mixed aqueous solution of sodium nitrate (NaNO3) and sodium chlorate (NaClO3) typical as a two-constituent system aqueous machining liquid of an electrolytic machining device, first deionized water is used to produce an aqueous solution, either one of NaCO3 and NaClO3 is kept constant in quantity and the other is gradually increased under a fixed condition of the liquid temperature at 25 deg.C, then the electric conductivity and the specific gravity of the aqueous solution are measured for at least ten types of individual additions, a relational equation among the constituent components, electric conductivity, and specific gravity is introduced, thereby each constituent composition can be detected based on the electric conductivity and specific gravity of the aqueous solution under measurement. |
