WEAR RESISTANCE OF COMPOSITE BORATED LAYERS OBTAINED BY HIGH FREQUENCY CURRENT (HFC) HEATING FOR HARDENING ROLLING STOCK PARTS
Abstract and keywords
Abstract (English):
The paper presents the technological process of local borating of medium carbon steellayers from coatings and HFC heating. Comparative studies of the wear of borated layers with different morphologies show the advantages of layers with a composite structure in a wide range of sliding speeds from 0.05 to 3 m/s. The maximum effective protection time is provided by borated layers which combine a compact structure with a composite one under harsh operating conditions. Conditional recalculation of the wear results of borated samples in harsh conditions allows assuming that running of the wedge-type shock absorber in general conditions is more than 600 thousand km.

Keywords:
borating, structure, wear resistance, protection, recalculation, running, rolling stock, shock absorber
References

1. Kurasov DA, Elperin VI. Handbook of technologist for repair of electric mobile transport. Kiev: Technika; 1990.

2. Minkevich AN, Krukovich MG. Kolmykova EA. Shurinov ASD, Sorokina VH. Use of boration to increase the durability of wear-resistant parts of rolling stock. Interuniversity Collection of Scientific Papers: Improving the Performance of Parts and Welded Assemblies of Railway Rolling Stock. Moscow: Publishing House of MIITa; 1986.

3. Krukovich MG, Kazakevich GA. Ways to increase the working capacity of wearable parts of rolling stock. New Materials and Technologies in Mechanical Engineering. 2023;38:46-49.

4. Krukovich MG, Fedotova AD, Kazakevich GA. Ways to optimize the wear resistance of built-up layers. National Association of Scientists. 2021;66-1(66):34-39. DOIhttps://doi.org/10.31618/nas.2413-5291.2021.1.66.404.

5. Krukovich MG, Prusakov BA, Sizov IG. Plasticity of borated layers. Moscow : FIZMATLIT; 2010.

6. Fedin VM, Borts AI. Substantiation of the use of cast iron or steel as a structural material for friction wedges of a freight car truck. New Technologies for the Production of Parts with Extended Service Life for Railway Transport. Moscow: All-Russian Institute forScientific and Technical Information of the Russian Academy of Sciences; 2016.

7. Borshch BV. Increasing the durability of the friction wedge damper for vibrations of freight car trucks [abstract of dissertation]. [Moscow (RF)]; 2009.

8. Friction wedge made of high-strength iron for freight car trucks. Specification TU 3183-163-01124323-2003.

9. Friction wedge made of gray cast iron for freight car trucks. Specification TU 3163-234-01124323-2007.

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