Improving the Tribological Properties of Ceramic Dies

Abstract:

The article is devoted to tribological studies of a ceramic composite with a zirconia-based die in order to replace carbide wire drawing dies with ceramic. Sliding friction was done according to the scheme finger-disk without lubrication and with lubrication. The wear rate and friction coefficients were determined, on the basis of which it is proposed to produce portage dies-blanks from zirconium ceramics. The influence of sintering temperature on the mechanical properties of ceramics, especially cracking resistance, was studied. The optimum sintering temperature was determined by the criterion of fracture toughness. The formation of defects after the final firing was investigated. It was found that sintering at a temperature of 1600 ° C is more promising. An trial batch of zirconium ceramic dies showed positive results in the process of drawing copper wire in industrial situations.

• Periodical: Key Engineering Materials (Volume 887)
• Pages: 339-344
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.887.339
• Online since: May 2021
• Authors: Valeriy Alisin*
• Keywords: Ceramic Composite, Dies, Fracture Toughness, Friction, Tribological Tests, Wear, Zirconium Ceramics

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