High temperature performance of composite calcium sulfonate grease

The composite calcium sulfonate grease has good high and low temperature properties, shear stability, extreme pressure and abrasion resistance, and water resistance and rust and corrosion resistance.

High temperature performance of composite calcium sulfonate grease

The dropping point of the composite calcium sulfonate base grease is generally above 300℃, up to 340℃. When the composite calcium sulfonate base grease did not become liquid at approximately 318℃, it was cooled to room temperature and returned to the original grease structure, and the lithium complex grease and polyurea did not change back to the original structure. In the severe bearing test (ASTM D1236 method, at 160℃, 660 r / min for 6 h), the composite calcium sulfonate base grease will not leak or harden, which shows the composite calcium sulfonate grease at extreme pressure and high temperature Both have a very good service life. The mineral oil formulation of the composite calcium sulfonate grease has a life of 140 hours, significantly exceeding the NLGL/LB 80 hours requirement.

Low temperature performance of composite calcium sulfonate base grease

The composite calcium sulfonate grease has good low temperature properties, and its kinematic properties at -54℃ are the same as those for polyurea grease at -30℃. Good low temperature performance comes from the system containing a large amount of spherical calcium carbonate. At low temperatures, such particles prevent the tendency of the base oil to condense and reduce the low temperature start resistance by rolling between the crystals themselves and slip between the layers