Patent ID: 8844288
Filing Date: 2014-09-30
Classification: F01D,F01K,F05D

Abstract:
1. A steam turbine facility in which steam having temperature of 650° C. or higher is used, the steam turbine facility comprising: a first member and a second member whose base material is formed of cast material composed of at least one of Ni-based alloy, austenite steel, or high-chrome steel, the first member and the second member forming a space where the steam flows; a metal gasket provided between the first member and the second member, the metal gasket having a plurality of portions in line contact with the first member and the second member; and a first high-hardness layer which is harder than the base material, the first high-hardness layer being provided on the first member and the second member at least in a portion where each of the first member and the second member is in line contact with the metal gasket.