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Carbon control in PM Sintering

Eduard Hryha (Institutionen för material- och tillverkningsteknik, Yt- och mikrostrukturteknik) ; Gerd Waning ; Lars Nyborg (Institutionen för material- och tillverkningsteknik, Yt- och mikrostrukturteknik) ; Akin Malas ; Sören Wiberg ; Sigurd Berg
Heat Processing (1611-616X). Vol. 12 (2014), 1, p. 33-39.
[Artikel, övrig populärvetenskap]

Challenges in controlling carbon potential during sintering of steel powder have been discussed in many experimental and theoretical studies. The main issues lie within the complex thermodynamics and kinetics of processing atmosphere chemistry in continuous sintering furnaces. Although many models have tried to address the problem, many of these have rarely come to reality and become an industrial practice. The purpose of this article is to summarize these discussions and investigate the interaction of the atmosphere constituents with the sintered compact within a sintering furnace. Considering an industrial practice perspective, the paper ensures the PM industry with a few new look into the understanding of furnace operations and provides recommendations to improve the control of the furnace conditions. As an example, existing furnace installation utilizing Linde Sinterflex(R) technology allows monitoring and/or controlling the furnace atmosphere. This article describes the reduction of oxides and carbon potentials to enable optimisation of the production parameters.

Nyckelord: Sintering atmosphere, carbon control, carbon potential, reducing potential, oxide reduction



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Denna post skapades 2014-11-12. Senast ändrad 2014-11-12.
CPL Pubid: 205618

 

Institutioner (Chalmers)

Institutionen för material- och tillverkningsteknik, Yt- och mikrostrukturteknik (2005-2017)

Ämnesområden

Produktion
Hållbar utveckling
Metallurgisk process- och produktionsteknik
Övrig teknisk materialvetenskap

Chalmers infrastruktur