Authors: Davyd M. KUKUI was born in 1946. Нe graduated from the Belarusian Polytechnic Institute in 1969. He is Doctor of Technical Sciences, Professor, Head of the Department of Machinery and Foundry Engineering of the Belarusian National Technical University, winner of the State Prize of the Republic of Belarus, Chairman of the Association of Foundry and Metallurgy of Belarus. He is author of over 340 scientific works in the field of foundry and steel industry. E-mail: kukui@tut.by
Fedor I. RUDNICKI was born in 1955. He graduated from the Belorussian Polytechnic Institute in 1977. He is Ph.D., Associate Professor of the Department of Machinery and Foundry Engineering of the Belarusian National Technical University. He is author of more than 80 scientific papers in the field of foundry and metallurgy. E-mail: stl_minsk@tut.by
Yuri A. NIKOLAICHIK was born in 1984. Нe graduated from the Belarusian National Technical University in 2006, assistant of the Department of Machinery and Foundry Engineering of the Belarusian National Technical University. He is author of 16 publications in the field of foundry and steel industry. E-mail: yuni@bntu.by
Abstract: The technology for making castings for pump assembly with high surface quality is considered. It is shown that it is possible to manufacture castings of the pump assembly without surface defects using nonstick coatings based on aluminosilicates modified with nanostructured modifier (boehmite). The effect of nano modifiers on the high temperature strength of nonstick coatings is studied. The optimal content of boehmite is shown to increase the strength of nonstick coatings in the temperature range 1000–1500 °C due to the formation of a new phase in the coating, i.e. mullite.
Index UDK: 621.74
Keywords: manufacturing of castings of pump assembly, surface quality, nonstick coating, high temperature strength, kyanite-sillimanite nano structured boehmite, mullite
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