Abstract
Abrasion is one of the most significant forms of wear affecting mechanical parts. It is mainly reduced by hardening the surfaces involved and one of the systems used involves the application of brazing to deposit tungsten carbides as antagonists to abrasion.
This paper analyses the types and the characteristics of the carbides commonly used, evaluates the oxy-acetylene flame depositing system, and describes the major forms present on the market and their developments. The paper also describes the latest improvement trends for obtaining increased performance and compares laboratory test results.
Notes
Paper presented at the 4th National Welding Day, Workshop: ‘Brazing’ Genova, 25–26 October 2007.