Smoothly does it.
Dispersion is the mixing of at least two different materials. Graphite dispersions are used in applications that require a uniform and fine distribution of graphite on the surface of the material which is to be coated. Depending on each individual application, the following dispersion properties are of decisive importance: sedimentation stability, surface tension, wetting behaviour on different surfaces, adhesive power on different surfaces, drying time, viscosity and pH level.
In order to improve the dispersing effect, tailormade formulations also contain protective colloids, preserving agents and other additives in addition to graphite and the dispersion agent (usually water). Graphite dispersions can be specifically produced for each individual application. In addition to custom dispersions, Graphit Kropfmühl also sells powder premixes which the customer/consumer can then mix with water.
Due to Van der Waals forces, pure graphite is a wondrous material when it comes to lubrication. The particles slide easily against one another and in doing so lower friction. As every type of graphite, in contrast to oil, neither combines with dirt nor is resinous, it is an outstanding addition to lubricants and ideal for use in thermally intense lubrication points – even in areas where oil lubrication is impossible.
In modern tube rolling mills, a pre-produced hot hollow is rolled over a mandrel to shape seamless tubes. After the rolling process, the mandrel and/or mandrel bar is removed from the rolled tube blank and cooled down in preparation for the next rolling process. Adding a coating of graphite is also part of this preparation. This is vital in order to ensure that the hollow “glides” perfectly on the mandrel bar during rolling and it is therefore decisive for the subsequent quality of the tube. High-quality graphite from Kropfmühl has been a reliable guarantee for high-quality tube production processes for years.