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Development of Compound Coating that Reduces Permeation of Chloride Ion in Salty Water for Hexavalent-Chromium-Free Metal Gasket for PWC Engines
Technical Paper
2008-32-0047
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A hexavalent-chromium-free metal gasket for PWC engines was developed to correspond to the ELV (End of Life Vehicle) directive. In order to enhance the adhesive property, the ion capture to trap the chloride ion, an anti-rust pigment to reform the chemical coating, and an inorganic sealer to stop the passage of chloride ion were added to the adhesive and rubber raw material. A good adhesive property and rubber physical property was obtained through the addition of an anticorrosive pigment. The rubber vulcanization condition in the manufacturing process was reviewed. As a result, without modifying the current compound coating line for mass-production, a gasket with a blistering resistance more than hexavalent chromium conversion coating equivalence and coating adhesion was developed when using salt water for engine cooling.
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Nagai, Y., Mochizuki, S., Hanawa, K., Okubo, K. et al., "Development of Compound Coating that Reduces Permeation of Chloride Ion in Salty Water for Hexavalent-Chromium-Free Metal Gasket for PWC Engines," SAE Technical Paper 2008-32-0047, 2008, https://doi.org/10.4271/2008-32-0047.Also In
References
- Kato Seki Basics of stainless steel 2007
- Matsushima Iwao Rust and anti-rust treatment 2nd 2000
- Ito Goro Corrosivity science and anti-rust treatment technology Revised 1979