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Atmosphere Study On The Thermal Decomposition Behaviour Of Delubrication Aiding Additives

  • : Peter Quadbeck1, Alexander Strauß1, Lars Wimbert2, René Lindenau2, Bernd Kieback3
  • : 1Fraunhofer Institute for Manufacturing Technologies and Advanced Materials IFAM Branch Lab Dresden, 2GKN Sinter Metals Engineering GmbH, 3Technische Universität Dresden
  • : PDF Download
  • : 2017

Abstract

In the present study, the effect of delubrication aiding additives on the thermal decomposition behavior was investigated. Such additives have been introduced in order to reduce stain formation caused by soot particles. Therefore, the atmosphere during the heat treatment of FeCuC components with various lubricants and clean burn additives has been monitored by in-situ FTIR atmosphere analysis directly in the furnace. It was found, that delubrication aids reduce the decomposition into stable species like aromates. Furthermore, the formation of CO, CO2 and CH4 was increased considerably. In comparison to compacts without delubrication aid, the maximum peak temperatures of the gas evolution does not change considerably. However, with such an additive further peaks are visible. In particular, the bands caused by CO2 and Alkene show additional peaks at lower temperatures. As a conclusion it is shown, that delubrication aids lead to improved lubricant decomposition as well as intensified soot burn-off.

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