Технологія і техніка друкарства (Dec 2016)
The Manufacturing Technology and its Effect on the Tribological Properties of the New Parts for Printing Machines
Abstract
The development of a modern technical equipment in the machine-building industry has a great importance for the problem of increasing the machines and mechanisms’ durability. It is no more an important problem among the tasks of creation the new technical objects. The extension of a useful service period for machines, mechanisms and equipment even in a small measure is equivalent an introduced new production capacities. Questions of the technical evolution were continually connected with the problems of materials’ science development. The questions of the new materials’ using took a central place in the general problem of machines and equipment quality increase, including materials of contact pairs such as antifriction (bearing) materials. The article reveals the features of the development of manufacturing technology and its effect on the antifriction properties of the new antifriction parts based on the EP975 nickel alloy composite materials with solid lubricant CaF2, which is intended for high speed printing equipment. The article summarizes the formation of new materials’ structure and antifriction properties after using a new manufacture technology. The results of industrial tests confirmed the efficiency of the developed manufacturing technology for bearings. The results of the new composite material’s tribotechnical properties have been presented in a comparison with the already known nickel composite. The industrial tests of the new composite antifriction parts have been carried out in the friction units of the printing machines. The visual inspection and measurement of surface roughness showed that the contact surfaces of bearings are not damaged, have high quality, and are usable. Industrial tests of ЕP975–CaF2 bearings showed an increase in wearing resistance by a factor of 5–6, compared with the already known antifriction parts.
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