A metalworking fluid defoamer is a special additive used to inhibit foam generation during metalworking processes. It is commonly added to metalworking fluids such as cutting oils, coolants, and grinding fluids to improve the surface tension of the fluid, eliminate foaming, and improve the fluid's cooling and lubricating properties.
How do metalworking fluid defoamers work? Metalworking fluid defoamers eliminate foam by reducing the surface tension of the liquid. When a liquid is subjected to mechanical agitation, impact, spraying, etc., gases in the liquid are trapped in the liquid to form foam. Metalworking fluid defoamers are able to penetrate the surface of the foam and reduce surface tension, causing the foam to become unstable and eventually burst. This prevents foam build-up during the metalworking process and improves the cooling and lubricating properties of the fluid.
Metalworking fluid defoamers offer the following benefits: - Can effectively eliminate foam and improve the fluid's coolness and lubricity. - Does not affect the surface quality and dimensional accuracy of metalworking parts. - Harmless to operators and the environment, safe and reliable. - Easy to use, can be added directly to the metalworking fluid.
Disadvantages of metal working fluid defoamer: - May affect the lubricity and rust prevention of metalworking fluids. - For some specific metalworking fluids, it may be necessary to use a different type of defoamer. - Higher quality defoamers may be required for metalworking processes with extreme conditions such as high temperatures, high pressures, and high shear.
When using defoamers for metalworking fluids, there are several things to keep in mind: - Select the right type of defoamer for each metalworking fluid. - Mix the defoamer thoroughly with the metalworking fluid before adding it. - Control the amount of defoamer added, too much defoamer may affect the lubricity and rust prevention of metalworking fluid. - Avoid collision with hard objects during use, so as not to damage the dispersion and stability of defoamer. - For some metal working processes under extreme conditions such as high temperature, high pressure, high shear, etc., higher quality defoamer is required.
