Abstract: A turbine rotor which is composed by connecting Ni-based alloy and heat resisting steel such as 12-Cr steel by welding to be able to ensure strength of welded parts and can be used under steam conditions of 700° C. class and method of manufacturing the rotor are also provided. The rotor of the rotating machine into which working fluid of 650° C. or higher is introduced, the rotor being composed of a plurality of members connected by welding such that material of each member is different in accordance with temperature of working fluid which flows contacting the members, wherein the first member(s) is formed from Ni-based alloy having mean linear expansion coefficient of 12.4×10?6/° C.˜14.5×10?6/° C., preferably 14.0×10?6/° C. or smaller within a temperature range from a room temperature to 700° C. and second member(s) is formed from high-chrome steels, and the rotor is composed such that the first member(s) formed from Ni-base alloy is located in a portion which contact to the working fluid of 650° C.

Abstract: A negative-electrode stuff has negative-electrode active-material particles including: an element being capable of sorbing and desorbing lithium ions, and being capable of undergoing an alloying reaction with lithium; or/and an elementary compound being capable of undergoing an alloying reaction with lithium. The negative-electrode active-material particles includes particles whose particle diameter is 1 ?m or more in an amount of 85% by volume or more of them when the entirety is taken as 100% by volume, exhibit a BET specific surface area that is 6 m2/g or less, and exhibits a “D50” that is 4.5 ?m or more.

Abstract: To provide a lithium ion secondary battery electrode in which a coated layer is held on a surface of an active material layer over a long period of time to suppress decomposition of the electrolysis solution and to enhance the cyclability, a manufacturing process for the same, and a lithium ion secondary battery using the electrode. A lithium ion secondary battery electrode includes a current collector, an active material layer containing a binder formed on a surface of the current collector, and a coated layer formed on the surface of at least a part of the active material layer, wherein the coated layer consists of an acrylic type copolymer cured substance comprising an acrylic type main chain and a side chain having polyester or polyether graft-polymerized to said acrylic type main chain and the coated layer is chemically bonded with the binder.

Abstract: To provide a lithium ion secondary battery electrode in which a coated layer is held on a surface of an active material layer over a long period of time to suppress decomposition of the electrolysis solution and to enhance the cyclability, a manufacturing process for the same, and a lithium ion secondary battery using the electrode. A lithium ion secondary battery electrode includes a current collector, an active material layer containing a binder formed on a surface of the current collector, and a coated layer formed on the surface of at least a part of the active material layer, wherein the coated layer contains a silicone-acrylic graft copolymer cured substance including an acrylic type main chain having a functional group and a side chain having a silicone graft-polymerized to the acrylic type main chain, and the coated layer is chemically bonded with the binder.

Abstract: To provide a lithium ion secondary battery electrode in which a coat is held on a surface of an active material layer over a long period of time to suppress decomposition of the electrolysis solution and to enhance the cyclability, a manufacturing process for the same, and a lithium ion secondary battery using the electrode. A lithium ion secondary battery electrode includes a current collector, an active material layer containing a binder formed on a surface of the current collector, and a coat containing modified polydimethylsiloxane formed on a surface of at least a part of the active material layer, wherein the coat is chemically bonded with the binder.

Abstract: There are provided an Ni-based alloy high-chrome steel structure and its manufacturing method capable of joining Ni-based alloys and high-chrome steels by welding, and performing suitable heat treatment, thereby maintaining the strength in the joints.

Abstract: A seal structure includes a thick abradable film, thereby improving sealing performance. A seal structure (1) is provided with at least one fin (5) that projects in a ring-shape from a circumferential surface of a rotating shaft (3) and that is provided along an axial direction (L) and a seal member (9) having a ring-shaped sealing surface (19) opposed to the fin (5), and on which an abradable layer (25) is formed by thermally spraying abradable material onto the sealing surface (19), the seal structure (1) is provided with tapered portions (21) inclined in a radial direction (K) at end portions of the sealing surface (19) in the axial direction (L).

Abstract: A shaft seal device that seals between the outer peripheral surface of a rotating shaft and a stationary member that is provided on the outer peripheral side of the rotating shaft, provided with a thin-plate seal that has a plurality of thin plates that are arranged in the circumferential direction of the rotating shaft and an abradable seal that is arranged at a position differing with the thin-plate seal in the axial direction, and having a free-cutting material that is disposed at either one of the rotating shaft and the stationary member, and a seal fin that projects toward the rotating shaft or stationary member from the other of the rotating shaft and the stationary member.

Abstract: There are provided an Ni-based alloy high-chrome steel structure and its manufacturing method capable of joining Ni-based alloys and high-chrome steels by welding, and performing suitable heat treatment, thereby maintaining the strength in the joints.

Abstract: A turbine rotor which is composed by connecting Ni-based alloy and heat resisting steel such as 12-Cr steel by welding to be able to ensure strength of welded parts and can be used under steam conditions of 700° C. class and method of manufacturing the rotor are also provided. The rotor of the rotating machine into which working fluid of 650° C. or higher is introduced, the rotor being composed of a plurality of members connected by welding such that material of each member is different in accordance with temperature of working fluid which flows contacting the members, wherein the first member(s) is formed from Ni-based alloy having mean linear expansion coefficient of 12.4×10?6/° C.˜14.5×10?6/° C., preferably 14.0×10?6/° C. or smaller within a temperature range from a room temperature to 700° C. and second member(s) is formed from high-chrome steels, and the rotor is composed such that the first member(s) formed from Ni-base alloy is located in a portion which contact to the working fluid of 650° C.

Abstract: A seal structure that achieves a thick abradable film, thereby improving sealing performance, is provided. A seal structure is provided with at least one fin that projects in a ring-shape from a circumferential surface of a rotating shaft and that is provided along an axial direction and a seal member having a ring-shaped sealing surface opposed to the fin, and on which an abradable layer is formed by thermally spraying abradable material onto the sealing surface, the seal structure is provided with tapered portions inclined in a radial direction at end portions of the sealing surface in the axial direction.

Abstract: In a method of manufacturing an axis seal, first, a roll of rolled metal material is cut into metal material plates of a predetermined size. Next, metal material plates are etched from both sides so as to form a predetermined size. Subsequently, the thin metal plates are arranged so as to be in a ring shape, oriented in the same direction, and are welded so as to be fixed. Additionally, during these processes, heat treatment is performed by heating rolls of rolled metal materials or metal material plates or thin metal plates at a predetermined timing, thereby eliminating residual stress (strain).

Abstract: 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.

Abstract: In a method of manufacturing an axis seal in accordance with the present invention, first, a roll of rolled metal material is cut out to predetermined size of metal material plates. Next, metal material plates are etched from both sides so as to form a predetermined size. Subsequently, the thin metal plates are arranged so as to be in a ring shape, orienting to the same direction, and are welded to be fixed. Additionally, during these processes, heat treatment is performed by heating rolls of rolled metal materials or metal material plates or thin metal plates at a predetermined timing, thereby eliminating residual stress (strain).