Kuivavoiteluna

Kuivavoiteluna refers to a method of lubrication that does not involve liquid oils or greases. Instead, solid lubricants are used to reduce friction between surfaces. This can include materials like graphite, molybdenum disulfide, PTFE (polytetrafluoroethylene), and even certain metal soaps or waxes. The principle is to create a low-friction layer between moving parts by applying these solid substances.

Dry lubrication is particularly useful in environments where liquid lubricants might be undesirable or ineffective. This includes high-temperature applications where oils would degrade, extremely low-temperature conditions where they might freeze, vacuum environments where liquids would evaporate, and situations where contamination from liquid lubricants is a concern, such as in food processing or cleanrooms. It can also be beneficial in areas exposed to dust or dirt, as solid lubricants are less likely to attract and hold particulate matter compared to viscous oils or greases.

Various application methods exist for dry lubricants. They can be incorporated directly into the material of the components, such as in self-lubricating bearings made from materials like PTFE-filled plastics or sintered metals impregnated with graphite. Alternatively, dry lubricants can be applied as coatings, often bonded to the surface using a binder, or as powders that are dusted or sprayed onto the surfaces. Some dry lubricants are also available in stick or film form for easy application. The effectiveness of dry lubrication depends on the specific material chosen, the surface preparation, and the operating conditions.