Open AccessNew technology for restoring Babbitt coatings
Author(s) -
Євген Коноплянченко,
Viacheslav Tarelnyk,
Vasyl Martsynkovskyy,
О. П. Гапонова,
A Lazarenko,
A Sarzhanov,
Maryna Mikulina,
Zh Zhengchuan,
В. О. Пирогов
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1741/1/012040
Subject(s) - materials science , durability , bearing (navigation) , coating , mechanical engineering , substrate (aquarium) , quality (philosophy) , surface finish , surface roughness , babbitt , metallurgy , process engineering , composite material , engineering , computer science , oceanography , epistemology , geology , philosophy , artificial intelligence
The reasons for reducing the durability of sliding bearings and the factors formed both at the stage of their manufacture and during operation are considered. Taking into account the types of destruction of sliding bearing coatings (exfoliation, disintegration of individual sections, field failure) the need for developing technological recommendations for their repair is demonstrated. The analysis of existing technological methods for restoring worn surfaces of parts is shown. The technique for applying the method of electrospark alloying to repair bearing liners is represented. The technologies of applying combined electrospark coatings to increase the adhesion strength of the substrate to the antifriction Babbit layer are described. There have been revealed the correlation dependences of the quality characteristics of the Babbit coatings restored by the method of electrospark alloying versus the technological parameters of the process. This makes it possible to significantly implement the methodology for controlling the surface layer quality while manufacturing and repairing the products with Babbit coatings. A technique has been developed for determining the mass transfer equation constants and for predicting the roughness. The mathematical models have been proposed to specify the quality parameters of the layers being formed in the course of the Babbit coating restoration based on the energy parameters of the electrospark alloying plant.