New technological solutions for restoring the inner surface of hydraulic cylinders
https://doi.org/10.32634/0869-8155-2021-354-11-12-166-170
Abstract
Relevance. Agricultural machines widely use hydraulic cylinders for various auxiliary and working movements. Operation in harsh field conditions leads to the failure of the hydraulic cylinder mirror and, as a result, to the loss of force on the cylinder rod. The development of technological solutions for the restoration of the inner surface as a more appropriate solution in repair production is relevant.
Methods. Studies of the heat flow using the “Fluke Ti32” thermal imager and ofthe influence of gas-dynamic spraying (GDS) modes on the adhesive and cohesive strength when using a new design of the nozzle part of the GDS equipment were carried out.
Results. The suitability of usage of new nozzle design for GDS in order to restore the inner surface of the hydraulic cylinder body has been established. The elongated and curved nozzle for installations of the “Dimet” type practically does not change the temperature regime of spraying. The adhesive and cohesive strength of the coatings obtained with the new nozzle design is sufficient to operate under conditions characteristic of the inner surface of the hydraulic cylinder body.
About the Authors
A. V. Chavdarov
FGBNU FNAC VIM
Russian Federation
Russian Federation
Chavdarov Anatoly Valentinovich, Candidate of Technical
Sciences, Leading Researcher
Moscow, 1st Institutsky proezd, 5, 109428
A. A. Tolkachev
FGBNU FNAC VIM
Russian Federation
Russian Federation
Tolkachev Alexey Alexandrovich, Junior Researcher
Moscow, 1st Institutsky proezd, 5, 109428
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Review
For citations:
Chavdarov A.V., Tolkachev A.A. New technological solutions for restoring the inner surface of hydraulic cylinders. Agrarian science. 2021;354(11-12):166-170. (In Russ.) https://doi.org/10.32634/0869-8155-2021-354-11-12-166-170
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