-
公开(公告)号:US09982545B2
公开(公告)日:2018-05-29
申请号:US14798897
申请日:2015-07-14
IPC分类号: F01D5/28 , C21D9/00 , C21D6/02 , C21D6/00 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/44 , C22C38/48 , F01D5/02 , F01D5/12
CPC分类号: F01D5/286 , C21D6/004 , C21D6/005 , C21D6/008 , C21D6/02 , C21D9/0068 , C21D2211/008 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/44 , C22C38/48 , F01D5/02 , F01D5/12 , F05C2201/0466 , F05D2220/30 , F05D2220/31 , F05D2230/00 , F05D2230/411 , F05D2300/11 , F05D2300/121 , F05D2300/125 , F05D2300/131 , F05D2300/132 , F05D2300/171
摘要: The precipitation hardened martensitic stainless steel is characterized by containing, in percent by weight, 12.25 to 14.25% Cr, 7.5 to 8.5% Ni, 1.0 to 2.5% Mo, 0.05% or less C, 0.2% or less Si, 0.4% or less Mn, 0.03% or less P, 0.005% or less S, 0.008% or less N, 0.90 to 2.25% Al, the balance substantially being Fe, and the total content of Cr and Mo being 14.25 to 16.75%. A turbine moving blade and a steam turbine are manufactured by using this martensitic stainless steel.
-
公开(公告)号:US11066715B2
公开(公告)日:2021-07-20
申请号:US16086705
申请日:2017-03-06
IPC分类号: C21D3/06 , C21D9/00 , F01D25/10 , F01D9/02 , F01K21/06 , F01K13/02 , F01D25/00 , C21D1/34 , F01D5/12
摘要: A dehydrogenation processing method for a turbine blade of a steam turbine. The method includes a step of heating the turbine blade by suppling heating steam into a casing of the steam turbine after a steam turbine plant is stopped. The heating steam supplied to the casing has a temperature that is higher than steam passing through the turbine blade during operation of the steam turbine plant. The method further includes repeating the process of supplying the heating steam into the casing a multiple of times.
-