When a polymer material moves in an extruder screw channel, an important role in creating conditions for mixing and heating the material is played by the friction between the material processed, the screw, and the cylinder. The friction is accompanied by a deleterious phenomenon, wear of the working members of the equipment.The wear of the working members of the equipment when plastics are processed depends on. the quality of its construction, the form of the material being processed, and the salient features of the technological proeessing. The principal causes of the wear can thus be divided into technological (depending on the processing conditions, the form of the material processed, and the operating conditions of the equipment) and design causes (associated with the distinctive features of the construction, the material, and the manufacturing process of the parts) [1].The objective technological causes of the equipment wear are: a faster processing rate, higher outputs of new polymer materials that cause more wear, and larger bulk, thermal, and chemical loads on the working members. According to the data of [2], a faster processing rate (as a result of higher temperatures and pressures) shortens the equipment lifetime three to four times.The "filler factor," on which the abrasability of the processed composition depends, is the leading factor that determines the rate of wear. Most fillers are based on compounds with a Mohs' hardness of 1 to 7. Thus, asbestos, kaolin, limestone, silica flour, glass fiber, refractory compounds (carbides, borides, nitrides, oxides), metal powders, etc. are used as fillers [3]. The rate of wear increases abruptly when compositions with a filler are processed [1].