| 摘要 |
A processing apparatus and an operating method of the processing apparatus, in which a water insoluble oil homogeneous to a water insoluble oil (processing oil) used for a mist-lubrication in a processing site on a work is used as a lubricating oil for a lubrication section of a processing machine, an aqueous solution is used as a cleaning liquid for cleaning the work after having been processed, and then a used processing oil and a used cleaning liquid are recovered and separated and further the separated processing oil and cleaning liquid are circulated into respective supply means, so that the used processing oil may be recovered and reused even if the lubricating oil is mixed into the processing oil since both are homogeneous oil and further the used cleaning liquid and the used processing oil can be surely separated from each other and reused, which allows to reduce an amount of waste as well as to reduce the cost.
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