Industry Application of the Coatings on the Bearing Bush by Electro Spark Alloying Technology
DOI:
https://doi.org/10.31471/1993-9965-2022-1(52)-15-23Keywords:
bearing bush, coating, electro spark alloying (ESA), industrial application, technical suggestionAbstract
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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Chen S., Wei L., Cheng B.X., Jin Y.L., Li C., Jia D., Duan H.T. Dry sliding tribological properties of PI/UHMWPE blends for high speed application. Tribology International. 2020. vol. 146, art. No. 106262. doi: 10.1016/j.triboint.2020.106262.
Strebkov S., Slobodyuk A., Bondarev A., Sakhnov A. Strengthening of Cultivator Paws with Electrospark Doping. Eng Rur Develop. 2019. pp.549-554. doi:10.22616/ERDev2019.18.N178.
Liu J.L., Liao R.D., Xie G.X., Xiang J.H., Luo J., Liao B., Liu Q.Y. Tribological properties of CrN coating deposited on 20CrMo against tin bronze. Sci China Technol Sc. 2018. vol. 61, pp.1713-1722. doi:10.1007/s11431-018-9239-7.
Holubets V.M., Pashechko M.I., Borc J., Tisov O.V., Shpuliar Y.S. Wear Resistance of Electrospark-Deposited Coatings in Dry Sliding Friction Conditions. Powder Metallurgy and Metal Ceramics. 2021. vol.60, pp.90-96. doi:10.1007/s11106-021-00218-0.
Martsynkovskyy V., Tarelnyk V., Konoplianchenko I., Gaponova O., Antoszewski B., Kundera C., Dyadyura K., Tarelnyk N., Sarzhanov B., Mikulina M., et al. New Process for Forming Multicomponent Wear-Resistant Nanostructures by Electrospark Alloying Method. Springer Proc Phys. 2020. vol.240, pp.135-149. doi:10.1007/978-981-15-1742-6_13.
Radek N., Pietraszek J., Antoszewski B. The Average Friction Coefficient of Laser Textured Surfaces of Silicon Carbide Identified by RSM Methodology. Adv Mater Res-Switz. 2014. vol.874, pp.29-34. doi: 10.4028/www.scientific.net/ AMR.874.29.
Xiao H., Cui Y.X., Xiong C., Chen L., Zhang X.C., Li Y.K., Zhou R.F. Effect of Annealing Temperature on Microstructure and Properties of Thixo-Extruded Tin Bronze Bushing. Rare Metal Mat Eng. 2021. vol.50, pp.4119-4127.
Liu N., Liu Q., Li Z., Bai Y., Sun Y.W., Li Z.D., Bao M.Y., Zhan H., Guo D.G., Ma Y.S. Tribological behavior of plasma-sprayed metal based solid self-lubricating coatings under heavy load. Wear. 2021. vol.486-487, art. No. 204108. doi:10.1016/j.wear.2021.204108.
Andrews M., Polcar T., Sofaer J., Pike A.W.G. The mechanised testing and sequential wear-analysis of replica Bronze Age palstave blades. Archaeometry. 2022. vol.64, pp.177-192. doi:10.1111/arcm.12685.
Zhang Y., Li L., Wang X.M., Zhao Y., Chang Q., Wang W.Y., Xu A.Y. Experimental study on aluminum bronze coating fabricated by electro-spark deposition with subsequent ultrasonic surface rolling. Surf Coat Tech. 2021. vol.426, art. No. 127772. doi:10.1016/j.surfcoat.2021.127772.
Ren X.Y., Zhang G.W., Xu H., Wang Z.J., Liu Y.J., Sun F.E., Kang Y.Y., Wang M.J., Lv W.Z., Yin Z. Effects of B on the Structure and Properties of Lead-Tin Bronze Alloy and the Mechanism of Strengthening and Toughening. Materials. 2021. vol. 14(24), art. No. 7806. doi:10.3390/ma14247806.
Gajmal S.S., Raut D.N. An Investigation on Wear Behaviour of ASTM B23 tin-Based Babbitt Alloy Developed Through Microwave-Assisted Casting. Int J Metalcast. 2022, vol. 48. doi:10.1007/s40962-021-00721-5.
Ribeiro R.M., Camara M.A. Study of the tribological behavior of the Babbitt alloy - steel ABNT 1045 pair when varied thickness and roughness of the coating. Materia-Brazil. 2020. vol.25(2),art.No.e-12661. doi:10.1590/S1517-707620200002.1061.
Amanov A., Ahn B., Lee M.G., Jeon Y., Pyun Y.S. Friction and Wear Reduction of Eccentric Journal Bearing Made of Sn-Based Babbitt for Ore Cone Crusher. Materials. 2016. vol.9(11), art.No.950. doi:10.3390/ma9110950.
Dong Q., Yin Z.W., Li H.L., Gao G.Y., Zhong N., Chen Y.H. Simulation and experimental verification of fatigue strength evaluation of journal bearing bush. Engineering Failure Analysis. 2020. vol.109, art. No.104275. doi:10.1016/j.engfailanal.2019.104275.
Ni Y.Q., Dong G.N., Tong Z., Li X., Wang W. Effect of laser remelting on tribological properties of Babbitt alloy. Mater Res Express. 2019. vol.6(9), art.No.096570. doi:10.1088/2053-1591/ab308d.
Paleu V., Georgescu S., Baciu C., Istrate B., Baciu E.R. Preliminary experimental research on friction characteristics of a thick gravitational casted babbit layer on steel substrate. 7th International Conference on Advanced Concepts in Mechanical Engineering. 2016. vol.147, art. No.012028. doi:10.1088/1757-899x/147/1/012028.
Bahrami F., Hammad M., Fivel M., Huet B., D'Haese C., Ding L., Nysten B., Idrissi H., Raskin J.P., Pardoen T. Single layer graphene controlled surface and bulk indentation plasticity in copper. International Journal of Plasticity. 2021. vol.138, art. No. 102936. doi:10.1016/j.ijplas.2021.102936.
Zhang Z.G., Lu X.T., Xu J.R., Luo H.J. Characterization and Tribological Properties of Graphene/Copper Composites Fabricated by Electroless Plating and Powder Metallurgy. Acta Metall Sin-Engl. 2020. vol. 33, pp. 903-912. doi:10.1007/s40195-020-01025-z.
Wang L., Gong P.W., Li W., Luo T., Cao B.Q. Mono-dispersed Ag/Graphene nanocomposite as lubricant additive to reduce friction and wear. Tribology International. 2020. vol.146, art.No.106228. doi:10.1016/j.triboint.2020.106228.
Wu F., Zhao W.J., Chen H., Zeng Z.X., Wu X.D., Xue Q.J. Interfacial structure and tribological behaviours of epoxy resin coating reinforced with graphene and graphene oxide. Surface and Interface Analysis. 2017. vol. 49, pp. 85-92. doi:10.1002/sia.6062.
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