Due to the requirements of the production process, some key equipment of industrial and mining enterprises operate under extremely harsh working conditions. Due to the heavy equipment, high ambient temperature, large dust or the air contains acidic corrosive gas CO, sulfur dioxide, etc., the lubrication of the equipment brings many problems, serious friction and wear, so far, most of the domestic enterprises still follow the traditional oil, grease lubrication, and in fact, these working conditions have exceeded the scope of oil and grease lubrication, and it is very easy to bite or bite the bearing and other friction pairs, causing serious wear and damage to parts, and often leading to equipment outage. In order to produce continuous operation, in addition to the original design requiring the installation of multiple equipment rotations, a large number of maintenance personnel must be invested. Serious restrictions on productivity improvement, spare parts and energy consumption has become a major obstacle to the development of production. Automobile manufacturing, cement production, petrochemical and other enterprises have put forward the requirements of providing special lubricating materials under complex working conditions. To this end, the research on mosaic self-lubricating composite materials, in the material formula and preparation process to highlight their own characteristics, the material performance has reached the international advanced level, for the enterprise to solve the lubrication problem under special working conditions, and bring obvious economic and social benefits. However, due to a variety of reasons, more domestic enterprises have not yet adopted it, and the above situation still exists.

The inlaid self-lubricating composite material is a new type of anti-extreme pressure solid lubricating material, which is composed of a metal substrate and a solid lubricant paste embedded in the hole or groove of the substrate. During friction, the metal substrate bears the bulk of the load. Through friction, the solid lubricant in the hole or groove is transferred or reversed to the friction surface, and a well-lubricated, firmly adhered and evenly covered solid transfer film is formed on the friction surface, which greatly reduces friction and wear. As the friction progresses, the embedded solid lubricant is continuously supplied to the friction surface, ensuring good lubrication during long-term operation.