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Advanced High-Temperature Test Methods for Gasket Materials, 1989
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English
Abstract
Testing of nonasbestos gasket facing materials using high-temperature creep, high-pressure sealability, and an elevated pressure thermal conductance apparatus is presented. A discussion of the composition of nonasbestos facing suggests that thermal gravimetric analysis yields little useful information to the designer and that high-performance testing under thermal and/or compressive load are required. Materials are ranked in order of service temperature from cellulose fiber reinforced to homogenous flexible graphite. The data lead to the conclusion that the changes occurring in a gasket facing from ten percent thermally induced compressive creep can result in orders of magnitude change in sealability.
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Citation
Mercuri, R., Howard, R., and McGlamery, J., "Advanced High-Temperature Test Methods for Gasket Materials, 1989," SAE Technical Paper 890271, 1989, https://doi.org/10.4271/890271.Also In
References
- DuPont 951 Thermo Gravimetric Analyzer DuPont Inst. 9900 Thermal Analysis Operating System Based on T. I. Hardware
- High-temperature creep experiments were run using a 75 mm O. D. × 55 mm I. D. ring sample held under constant load while the temperature was increased at 10°C/minute Three replicates constituted a single test
- Sealability was run on heat-treated samples at room temperature with a 90 mm O. D. × 50 mm I. D. test ring under various clamp loads at an internal pressure of 580 psi Four replicates constituted a single test
- Automotive Handbook Bosch Second ISBNO-89 283-518-6