Technological Methods for Increasing the Life of Machine Components

Kuznetsov, Yu. A.; Кравченко, И. Н.; Sevryukov, A. A.; Glinskii, M. A.

doi:10.1134/s0036029519130184

Cited by 9 publications

(2 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At the same time, livestock buildings are saturated with microflora in an amount from 400 to 750 colonies per volume cubic meter, and microbes number in manure drains is 6×10 6 …9×10 7 . [7,8] Sulfate-reducing, hydrogen-binding, glandular, and sulfur-oxidizing several other types microorganisms are the most dangerous for metal products corrosion, since they produce precipitations in mucus form on their surfaces [9].…”

Section: Equipment and Materialsmentioning

confidence: 99%

Increasing of Corrosion Resistance for Metal Products of Livestock Premises

Karelina

Gaidar

Petrovskiy

2021

SSP

View full text Add to dashboard Cite

The purpose of the work was to identify and analyze the causes of corrosion destruction of metal products, used in conditions of animal keeping on farms of the agro-industrial complex, and to find effective methods of combating it. In order to increase corrosion resistance of metal products of livestock farms and complexes, it is proposed to use the developed preparation, which has fungicidal and anticorrosive properties simultaneously. The rate of metal products corrosion during the experiment was evaluated by the museum strain of Aspergillus niger fungi. The article describes the causes of fungal corrosion, the principle of its effect on metals; proposes an inhibitor of complex action for the control of electrochemical and bio-corrosion. The protection efficiency of metal products by the inhibitor was evaluated by the corrosion braking coefficient and the degree of protection. The effect of inhibitor concentration on the rate of low carbon steel bio-corrosion has been studied. It has been proven that the rate of corrosion processes decreased by 50 times, when exposed to a medium, contaminated with fungus spores, on metal samples treated with an inhibitor.

show abstract

Section: Equipment and Materialsmentioning

confidence: 99%

Increasing of Corrosion Resistance for Metal Products of Livestock Premises

Karelina

Gaidar

Petrovskiy

2021

SSP

View full text Add to dashboard Cite

show abstract

“…In connection with the growing demands of consumers of repair services, repair enterprises are strengthening quality control by introducing quality systems [1,2], designing and standardizing control operations [3,4]. This also applies to enterprises involved in the repair of domestic machines [5,6,7], where it is necessary to improve the quality of control services [8,9], comply with the requirements for testing parameters of finished products [10], and also ensure the tolerances specified in the technical documentation and fit parts in repaired units [11,12,13].…”

Section: Introductionmentioning

confidence: 99%

Justification of the choice of means of controlling the parameters of the crankshaft after processing for the repair size

Leonov,

Shkaruba,

Temasova

et al. 2023

E3S Web of Conf.

View full text Add to dashboard Cite

An assessment of the quality of the control of the parameters of the crankshaft after processing for the repair size was carried out. The company's metrological support system must guarantee the accuracy and quality of the crankshaft repair, eliminating the possibility of defects during subsequent assembly. When repairing engines, defects in the crankshafts are detected, after which they are replaced with new ones or processed according to the repair size. After processing the crankshaft for the repair size, it is necessary to carry out control according to six parameters. It was revealed that to measure the diameters of the main and connecting rod necks of the crankshaft of the Zavolzhsky Engine Plant, as well as their ovality, it is necessary to replace the micrometer 50-75 (0.01) used at the enterprise, the maximum measurement error of which is twice as large as permissible, with a lever bracket 50-75 (0.002) to reduce the measurement error and improve the quality of control. To control the greatest beating of the second, third and fourth root necks relative to the first and fifth root necks, the hour-type indicator used at enterprises fully satisfies the specified conditions, the maximum error does not exceed the permissible one. To control the axial clearance of the already assembled crankshaft along the thrust bearing, dial indicator 0-10 (0.01) is also used, which provides the specified measurement accuracy with a three-fold margin. When measuring the length of the third root neck, the use of a caliper calipers 0-125 (0.05) leads to an excess of the permissible measurement error by 3 times, but there are no other more accurate universal measuring instruments to control this parameter, since the control is carried out by special sponges for measuring holes, which are available only for calipers. It is recommended to design a gauge to measure the length of the third root neck.

show abstract