Industry Application of the Coatings on the Bearing Bush by Electro Spark Alloying Technology


  • Zhang Zhengchuan Technical Services Department, Sumy National Agrarian University, Sumy, 40021, Ukraine
  • Ye. V. Konoplianchenko Technical Services Department, Sumy National Agrarian University, Sumy, 40021, Ukraine
  • V. В. Tarelnyk Technical Services Department, Sumy National Agrarian University, Sumy, 40021, Ukraine
  • Liu Guanjun School of Mechanical and Electrical Engineering, Henan Institute of Science and Technology, Xinxiang, 453000, China
  • Du Xin Technical Services Department, Sumy National Agrarian University, Sumy, 40021, Ukraine
  • Ju Yao Technical Services Department, Sumy National Agrarian University, Sumy, 40021, Ukraine
  • Song Zhaoyang Technical Services Department, Sumy National Agrarian University, Sumy, 40021, Ukraine



bearing bush, coating, electro spark alloying (ESA), industrial application, technical suggestion


The traditional processing and manufacturing process of plain bearing bush is briefly introduced, but the hard particles are large or unevenly distributed, the pressure borne by a single crystal in the alloy is too large, and the crystal is cracked to cause the bearing Bush to be damaged. The finer the crystal, the more the grain boundaries and the more disordered the atomic arrangement, which can increase the deformation resistance and provide the strength and impact toughness of the alloy. Therefore, in order to improve the mechanical properties of the bearing, it is necessary to refine the crystal and make it distribute evenly. The running-in coatings on the surface of tin bronze that was formed by electro spark alloying (ESA) applying the antifriction material of silver, copper, Babbitt B83 and graphene oxide (GO). The analysis of deposition on mass transfer, roughness, thickness and tribological properties of the running-in coatings were investigated by electronic scales, 3D optical profilometers, scanning electron microscopy (SEM), energy dispersion spectrum (EDS), metallographic microscopy and tribometer. The results show that the running-in coatings are dense, grains refined, uniformly distributed and metallurgical fusion with the substrate. The test results of different running-in coatings were summarized and analyzed, and the best industrial application scheme is determined. The base material, coating material, processing technology and coating technology of bearing bush which affect the product quality are analyzed. A new environmental protection technology of constructing running-in coatings of tin bronze bearing bush is put forward, and the technical design, manufacture, processing, installation and trial operation are described in detail. The industrial application adopts a new electro spark alloying of running-in coating technology on the tin bronze bearing Bush to realize the advantages of good surface comprehensive performance, excellent antifriction performance, strong fatigue resistance, high reliability, good durability. Finally, some technical suggestions for the application of running-in coatings process of tin bronze bearing are put forward.


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How to Cite

Zhengchuan, Z., Konoplianchenko Є. В., Tarelnyk В. Б., Guanjun, L., Xin, D., Yao, J., & Zhaoyang, S. (2022). Industry Application of the Coatings on the Bearing Bush by Electro Spark Alloying Technology. Scientific Bulletin of Ivano-Frankivsk National Technical University of Oil and Gas, (1(52), 15–23.