发明名称 |
Steam turbine |
摘要 |
A metal sealing material used in a sealing device which can reduce a gap between a stator and a rotor of a turbine. The metal sealing material used in a sealing device for a stator and a rotor of a turbine includes a surface layer and a lower layer composed of a porous metal layer, wherein the porosity of the surface layer is smaller than the porosity of the lower layer; the porosity of the surface layer is 60 to 65% and the porosity of the lower layer is 67 to 75% or less; and the porous metal layer has a thickness of 0.3 to 3.0 mm and may include, as a main component, an MCrAlY alloy where M is either one of Ni and Co or both thereof, and h-BN as a solid lubricant. |
申请公布号 |
EP2463406(A3) |
申请公布日期 |
2013.03.13 |
申请号 |
EP20120158240 |
申请日期 |
2010.06.29 |
申请人 |
HITACHI LTD. |
发明人 |
KOJIMA, YOSHITAKA;ARIKAWA, HIDEYUKI;MEBATA, AKIRA;DOI, HIROYUKI;TORIYA, HAJIME;NARITA, KENJIRO |
分类号 |
C23C28/02;C22C19/00;F01D5/28 |
主分类号 |
C23C28/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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