Application of Composite Electroless Nickel Coatings on Precision Parts of Hydraulics Aggregates

Safonov, V.; Shishurin, Sergey Aleksandrovich; Gorbushin, P.; Kolomeichenko, A. V.; Kuznetsov, Yu. A.; Kalashnikova, Larisa; Zakharevich, A.

doi:10.24874/ti.2019.41.01.02

Cited by 3 publications

(1 citation statement)

References 13 publications

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“…Recently, the requirements for the service life of new hydraulic power units with minimal production costs have been significantly increasing. 18 To evaluate the used hydraulic fluid in hydraulic circuits of agricultural and forestry equipment, it is necessary to know the input parameters of the hydraulic system, the parameters of the hydraulic pump, which will be used to monitor physical changes in the hydraulic fluid. For testing the hydraulic fluid was used the hydraulic pump.…”

Section: Hydraulic Pump Basic Parameters Characteristicmentioning

confidence: 99%

Laboratory tests of the hydraulic pump operating load with monitoring of changes in the physical properties

Hujo

Nosian

Zastempowski

et al. 2021

Measurement and Control

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The present article deals with the physical properties monitoring of the transmission-hydraulic fluid, and changes of those properties due the operating load of the hydraulic pump in laboratory conditions. Tests of the transmission-hydraulic fluid were performed in laboratory conditions with the simulation of the operating load, so as to simulate the real conditions under which hydraulic circuit of the agricultural tractors operates. The universal transmission-hydraulic fluid was subjected to analysis, where the samples of the fluid were taken sequentially according to the chosen methodology at intervals of 250 and 500 h. The results of the present article include the evaluation of the physical properties of the fluid and the flow efficiency change of the hydraulic pump after 250 and 500 h of operation, while simulating the operation load. Based on a laboratory test, we found that after working for 500 h, the dynamic viscosity of the examined hydraulic fluid at 40°C decreased by 2.92 mPa.s and at 100°C decreased by 0.64 mPa.s. When determining the kinematic viscosity of the hydraulic fluid after working for 500 h, we recorded its decrease, namely, at a temperature of 40°C by a value of 3.37 mm2/s and at a temperature of 100°C, its value decreased by 0.77 mm2/s. In the analysis of the test oil samples, we found that the level of water contamination of the hydraulic fluid decreases with increasing number of hours worked. Specifically, the water concentration in the hydraulic fluid decreased by 0.031%. At the same time, we recorded a slight decrease in the flow efficiency of the hydraulic pump, specifically by a value of 0.03% after 500 h worked. After working 500 h, we found that the range of abrasion particles in the transmission-hydraulic fluid is within the prescribed range, which is determined by the standard D6595-00.

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Section: Hydraulic Pump Basic Parameters Characteristicmentioning

confidence: 99%

Laboratory tests of the hydraulic pump operating load with monitoring of changes in the physical properties

Hujo

Nosian

Zastempowski

et al. 2021

Measurement and Control

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Submicrostructure of “Pure” Electrolytic Coatings

Kisel

Кравченко²,

Kuznetsov³

et al. 2022

Russ. Metall.

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Innovative Technologies in Lapping and Electrospark Alloying of Metal Surfaces as the Basis for Industry 4.0

Avdeenko

Konovalova

Dašić

et al. 2020

Advances in Business Information Systems and Analytics

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The various active chemical additives along with abrasive materials are used to intensify processes in lapping of metal surfaces. The authors developed new lapping compositions based on inexpensive components with the addition of various chemical agents. The chemical additives help to improve metal removal, to decrease surface roughness, and to get a more stable metal surface. New lapping pastes do not cause the corrosion of equipment and do not require their replacement in further operations of the mechanism, for example, large-sized reducer. The chemical additives can be used in electrospark alloying too. They improve both the alloying process and the subsequent operation of alloyed surfaces. New technologies reduce the number of operations that require human involvement. That contributes to the introduction of full machine control over technological process and is the basis for Industry 4.0 that offers the opportunity for manufacturers to optimize their operations quickly and efficiently by knowing what needs attention.

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Application of Composite Electroless Nickel Coatings on Precision Parts of Hydraulics Aggregates

Cited by 3 publications

References 13 publications

Laboratory tests of the hydraulic pump operating load with monitoring of changes in the physical properties

Laboratory tests of the hydraulic pump operating load with monitoring of changes in the physical properties

Submicrostructure of “Pure” Electrolytic Coatings

Innovative Technologies in Lapping and Electrospark Alloying of Metal Surfaces as the Basis for Industry 4.0

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