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US 2008/0175741 A1Published application
Cast iron material, seal material and the production method
AssigneeEagle Industry Co., Ltd.
InventorsKen Okada, Yoshihiro Mura, Haruhiro Osada, Naoki Hayakawa, Osamu Moriya, Asahiko Ishiyama
Life of this patent
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Abstract
A floating sealing ring formed from a seal material composed of C, Si, Mn, Ni, Cr and the rest composed of Fe and inevitable impurities, wherein contents of said C, Si, Mn, Ni and Cr with respect to the entire cast iron material are C: 2.9 to 3.8 wt %, Si: 1.0 to 2.5 wt %, Mn: 0 to 0.8 wt % (note that 0 is not included), Ni: 3.5 to 5.0 wt %, and Cr: 2.6 to 5.5 wt %.
Claims2
A floating sealing ring formed from a seal material composed of C, Si, Mn, Ni, Cr and the rest composed of Fe and inevitable impurities, wherein
- contents of said C, Si, Mn, Ni and Cr with respect to the entire cast iron material are
- C:
- 2.9 to 3.8 wt %,
- Si:
- 1.0 to 2.5 wt %,
- Mn:
- 0 to 0.8 wt % (note that 0 is not included),
- Ni:
- 3.5 to 5.0 wt %, and
- Cr:
- 2.6 to 5.5 wt %.
8 more elements
Dependencies are inferred from the claim text.