abstract |
It is a metal processing water or composition that is excellent in cooling and lubricity and does not adversely affect the environment. Water containing at least one selected from the group consisting of fluorine ions, hydrogen carbonate ions, and silicon and sodium ions, and adjusted to pH 6.0 to 10 is used as the metal working water as it is, or to the metal working water, The additives are mixed to adjust the composition and used in place of cutting oil. |