Machines. Technologies. Materials.
Vol. 16 (2022), Issue 6, pg(s) 213-216

MATERIALS

Determination of the quality of renovation layers in tribological conditions

  • 1 Technical university in Kosice, Letna 9 Kosice 04001, Slovakia

Abstract

Molds designed for high-pressure casting of aluminum are exposed to very intense thermal, mechanical but also chemical stress during their operation. This stress leads to a synergistic effect of a combination of high-temperature corrosion processes in molten metals, under real conditions associated with mechanical wear. High-temperature corrosion in the environment of liquid metals occurs in the foundry industry, when casting molten metal most often into steel molds. Repair of worn parts of molds by welding, which can be performed even after their irreversible surface degradation, is a very efficient, cost-effective and envi-ronmentally acceptable form of their maintenance, while the chemical and physical properties are welded layers if they exceed the properties of the original material.

Keywords

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