| 摘要 |
<p>The present invention relates to a method of cooling and lubrication working areas of tools for mechanical working using liquid carbon dioxide. The method comprises the steps of passing liquid carbon dioxide from a source of liquid carbon dioxide through a conduit and a nozzle, applying the carbon dioxide on and/or near the working area of the tool and/or on the worked goods, the lubricant being soluble or dispersible in liquid carbon dioxide is added to the liquid carbon dioxide before it enters the nozzle. The lubricant is added to the liquid carbon dioxide leaving the nozzle in an amount less than 5.0 per cent by weight, preferably in an amount of 0.5-2.5 per cent by weight.</p> |
