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A Study on the Strength of Catalytic Converter Ultra Thin Wall Substrates
Technical Paper
2003-01-0662
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Application of Ultra Thin Wall (UTW) ceramic substrates in the catalytic converter system requires the canner and component manufacturers to better understand the root cause and physics behind substrate breakage during the canning process. For this purpose, a ceramic substrate strength study for shoebox design has been conducted within Visteon Corporation. Computer Numerical Control (CNC) machined top and bottom fixtures, with identical inner surfaces as shoebox converter upper and lower shells, were used to crush mat wrapped substrates. Thin film pressure sensor technology enables the recording of substrate surface pressure during the compression process. Shell rib, washcoat, canning speed and cell density effects on substrate failure have been experimentally investigated. The development of a mathematical model helps to identify a better indicator to evaluate the substrate strength in the canning process and establish the strength for uncoated & coated substrates. Through the optimization of components and process variation in manufacturing, the scrap rate can be reduced.
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Authors
Citation
Bian, X., Li, H., and Lanzesira, J., "A Study on the Strength of Catalytic Converter Ultra Thin Wall Substrates," SAE Technical Paper 2003-01-0662, 2003, https://doi.org/10.4271/2003-01-0662.Also In
References
- Gulati, S.T. Chen. D.K.S. “Isostatic Strength of Porous Cordierite Ceramic Monolinths” SAE Paper No. 910375
- Locker Robert J. Sawyer Constance B. Eisenstock Gregory “Thin Film Pressure Sensor Technology Applied to Catalytic Converter Packaging” SAE Paper No. 2001-01-0223
- Variation Simulation Analysis Electronic Data Systems (EDS)
- Tagomori Mauro K. Rajadurai Sivanandi “Catalytic Converter Design for Manufacturing Using Monte-Carlo Simulation” SAE Paper No. 2000-01-2878
- Li Houliang Soon Robin Bian Xiaoming Lanzesira Joseph Dawson Pamela “Development and Validation of Canning Methods for Catalytic Converters Using Ultra Thin Wall Substrates” 2004 SAE Annual Congress