Investigation of the orientation of floccules in magnetic sump during cleaning of cooling lubricants

Abstract

The article deals with the problem of cleaning cooling lubricants involved in technological processes of parts machining. As a result of cutting, drilling, grinding, cooling lubricants are contaminated with extraneous impurities. The most dangerous for the quality of products and equipment are magnetic particles of various sizes. One of the cleaning methods is a magnetic sump, which will reduce the mass-dimensional parameters of the system on retention of a high degree of purification. An analysis of existing designs is made and it is shown how the configuration of the magnetic field affects the kinetics of the motion of impurities in cooling lubricants. Experimental dependencies of the deposition rate for different orientations of floccules formed as a result of the effect of a magnetic field on particles are found. The coefficient of drag of the floccules is found from the number of particles. It is proved that the use of only the shape factor and the equivalent diameter is not enough for calculations.