| 摘要 |
<p>A system for recycling used washing fluid with an electroerosion machine which includes a regenerator unit, i.e. an ion exchange column as deionizer, via which the used liquid medium passes, said medium being, for example, water collected from an electroerosion zone, in order to regenerate it and to return it to the electroerosion zone. A pump is periodically started up in order intermittently to pass liquid medium via the deionizing column with predetermined connection and disconnection times, independently of whether the value of an electrical property, for example the specific resistance of the fluid, determined by a detector unit, is above a specific level. However, the ratio of connection time to disconnection time is modified in accordance with the particular value of the electrical property detected.</p> |
