Väliainevoitelua

Väliainevoitelu, a Finnish term, translates to "interlayer lubrication" or "lubricant film lubrication" in English. It refers to a specific method of lubrication where a thin layer of lubricant is intentionally placed between two moving surfaces. This lubricant film acts as a barrier, preventing direct contact between the surfaces. The primary purpose of väliainevoitelu is to reduce friction and wear, thereby extending the lifespan of the components and improving the efficiency of the system.

This lubrication technique is commonly employed in various mechanical applications. Examples include the lubrication of bearings, gears, and sliding surfaces in engines and machinery. The effectiveness of väliainevoitelu depends on several factors, including the type and viscosity of the lubricant, the operating conditions such as speed and load, and the surface properties of the materials involved. The lubricant can be introduced in various forms, such as oil, grease, or specialized coatings.

The concept is fundamental to tribology, the science of friction, wear, and lubrication. By maintaining a continuous and stable lubricant film, väliainevoitelu ensures that the load is carried by the fluid rather than by the solid surfaces. This hydrodynamic or elastohydrodynamic lubrication regime is crucial for preventing catastrophic failure and ensuring smooth operation in many industrial and automotive contexts. The proper selection and application of lubricants are therefore critical for successful väliainevoitelu.