Open AccessIMPREGNATION OF POROUS METAL CASTING WITH POLYMER COMPOSITIONS: CURRENT TRENDS
Author(s) -
И. О. Леушин,
A. U. Subbotin,
D. A. Gorokhov
Publication year - 2020
Publication title -
izvestiâ volgogradskogo gosudarstvennogo tehničeskogo universiteta
Language(s) - English
Resource type - Journals
ISSN - 1990-5297
DOI - 10.35211/1990-5297-2020-7-242-55-61
Subject(s) - casting , materials science , polymer , porosity , metallurgy , composite material
Modern sealing materials for impregnation of cast parts are considered, as well as types of casting defects that require such processing. The block diagram of impregnation is given, its operations are described. A classification of modern methods of impregnation of castings with polymer materials is proposed, and the results of their comparative evaluation are presented. The most practical interest among manufacturers is the method of impregnation «wet vacuum / pressure» in combination with the use of the impregnating composition Loctite Resinol 88 C. This is due to the best combination of price and quality of the sealant, as well as the fact that this impregnating compound can withstand the highest temperature (250 °C) compared to its analogues and is characterized by the lowest consumption when processing products (1.5 g/kg).