Impact of Protective Release Coatings with Nanopowders on the Quality of Bronze Castings Surface

Author:

Martyushev Nikita1,Semenkov Ilya V.1,Petrenko Yuriy N.1

Affiliation:

1. National Research Tomsk Polytechnic University

Abstract

In work are submitted data of casting mold coverings with nanopowders application for molding lead bronze. Influence of a structure of used protective - separating coating of a foundry core on a microstructure of castings was investigated. For experimental work following coverings (the patent No 2297300) a mix dioxide zirconium nanopowder with industrial oil, and the same structure, but already on a basis on oxide aluminum nanopowder have been chosen. It is shown that these coverings application leads to decrease in quantity of surface defects, the roughness of a cast surface decreases. At the same time penetration of particles of a powder from a foundry covering in casting doesn't occur.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

Reference10 articles.

1. A.M. Katz, Research of distribution of inclusions of lead in the PM cast brass 63-3, Non-ferrous metals. 5 (1968) 31-38.

2. R.K. Mysik, Structure of cast preparations from lead brass and mechanical properties of bars from these alloys, News of higher education institutions. Nonferrous metallurgy. 2 (1995) 35-38.

3. N.V. Martyushev, Influence of crystallization conditions on containing lead bronze structure and property, Mechanical engineering Metallurgy. 4 (2005) 32-36.

4. I.E. Gorshkov, Cast of non-ferrous metals and alloys: the manual, Metallurgizdat, Moscow, (1952).

5. T.A. Barsukova, Short messages on research works M.I. Kalinina plant, Metallurgizdat, Moscow, (1960).

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