Substitution of quenching oils with high risk of fire by water-based quenchants – without flames and fumes∗

Autor: T. Beitz
Rok vydání: 2007
Předmět:
Zdroj: HTM Journal of Heat Treatment and Materials. 62:163-166
ISSN: 2194-1831
1867-2493
Popis: The practice of using large open tanks filled with oil for heat treatment can be consigned to history thanks to the development of new technology. Today FEROQUENCH, a water-based quenchant, is widely used to replace open oil quench tanks and this trend is accelerating. Comprehensive practical experience is now available to prove that a water-based polymer quenchant with oil-like quenching properties is capable of providing excellent performance over many years of service. In many cases the conversion of an oil-quenching system is straightforward, although quenchants with a high waterconcentration always require good agitation due to the lower boiling temperature of these fluids compared with oil. The quenching properties of water-based polymer quenchants are much more influenced by the bath-temperature than those of oils. Therefore the temperature has to be controlled to reach constant and homogenous cooling properties. The paper details properties of water-based quenchants together with application parameters and examples of working systems.
Databáze: OpenAIRE