Abstract:
PROBLEM TO BE SOLVED: To provide a material composite having sufficient functions, particularly, regarding strength, thermal fatigue resistance and corrosion resistance. SOLUTION: In this invention, regarding a process where a material composite provided with a part composed of a material using steel or titanium as a base and a part composed of a material using copper or aluminum as a base is produced, both the parts of the material composite are joined together via an intermediate piece. The intermediate piece simultaneously has a region composed of a material using steel or titanium as a base and a region composed of a material using copper or aluminum as a base mutually joined by explosive welding. Both the parts of the material composite are joined by a fusion welding process or a diffusion welding process to the intermediate piece region of the same type even in any case. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a first wall component of a single block design that has required functions as the first wall component and suppresses the occurrence of cracks, separation, or the like. SOLUTION: The first wall component of a fusion reactor includes at least one heat shield made of a graphite material; and a cooling pipe made of copper or a copper alloy. In the heat shield, a tube segment is provided between the heat shield and the cooling pipe. The tube segment is connected to the heat shield at least in a partial region and is also connected to the cooling pipe via a layer containing copper. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an inexpensively producible composite member at least partially composed of tungsten or a tungsten alloy and copper or a copper alloy and exhibiting sufficient functionality regarding thermal fatigue in particular. SOLUTION: Regarding a working method for producing a composite member comprising one member produced from tungsten and one member produced from copper, and in which they are integrally joined by a joining process, in the member produced from tungsten, the region of the joined surface is structured before the joining for obtaining a larger surface area. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide the first wall component of a nuclear fusion reactor permitting non-destructive test by a simple method. SOLUTION: The first wall component of a nuclear fusion reactor comprises at least one heat shield comprising at least one of a graphite material, a carbide material, tungsten and a tungsten alloy and a heat sink made of a copper alloy. The heat sink is made by spray-molding the copper alloy. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
The invention relates to a monoblock cooling device component. A thermal shield that is made of tungsten, a tungsten alloy, a graphitic material, or a carbidic material is provided with a passage into which a cooling pipe is inserted in an integrally joined manner in order to conduct coolant. The thermal shield is integrally joined to a structural part that is made of a material having a tensile strength > 300 MPa at room temperature and a specific electric resistance > 0.04 ohm mm 2 m -1 .
Abstract:
A cooling device component of monobloc design has a heat shield made from tungsten, a tungsten alloy, a graphitic material or a carbidic material provided with a through-hole. A cooling pipe for carrying coolant is joined in the through-hole. The heat shield is in turn joined or metallurgically joined to a structural part made from a material with a tensile strength at room temperature of >300 MPa and an electrical resistivity of >0.04 Ohm mm2m−1.
Abstract:
The method involves producing an intermediate piece (4), which consists of an area made of steel or a titanium-based-material and another area made of a copper or aluminum based material. The areas are connected under formation of a connecting zone (7) by explosion welding. A section is connected with the former area under formation of a welding seam and another section is connected with the latter area under formation of another welding seam by a fusion-or diffusion welding process. The sections and the areas consist of a material with same base metal.
Abstract:
First wall component (1) comprises a tubular segment (5) arranged between a thermal shield (2) and a cooling pipe (3). The tubular segment is connected to the thermal shield in regions and to the cooling pipe via copper-containing layers (6, 7).
Abstract:
The process involves materially bonding a part made of tungsten or tungsten alloy to a part made of copper or copper alloy, where the tungsten part is structured around its joining surface prior to the joining process in order to create a larger surface area. The structured area can have indentations and/or protrusions produced through blasting with an electron beam or through mechanical machining. An independent claim is included for a composite component with tungsten and copper parts joined together with the tungsten part having a structured surface in its joining area.
Abstract:
A first-wall component for a fusion reactor contains at least one heat shield having a first region inclined toward the plasma and a second region lying opposite the first region and formed of a graphitic material. The heat shield has one or more slots that end in the first or second regions and are oriented generally in the direction of an axis of the cooling tube. The components suitably cope with the mechanical stresses resulting both from production and from thermal cycling.