JOINING METHOD OF CYLINDRICAL OBJECT BY BRAZING OR DIFFUSION BONDING

PROBLEM TO BE SOLVED: To provide a new hot joining method for integrating an inner cylinder and an outer cylinder made of metal and concentrically overlapped without requiring large-scale facilities in an HIP method, and also to provide a method enabling joining of materials having high rigidity. SO...

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Bibliographische Detailangaben
Hauptverfasser:	SAITO TOSHIHITO, ONO FUMIE, TAKEKOSHI MASAO, UEDA SHUICHI, YAMASHITA SATOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CLADDING OR PLATING BY SOLDERING OR WELDING COMBUSTION ENGINES CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS JET-PROPULSION PLANTS LIGHTING MACHINE TOOLS MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WEAPONS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a new hot joining method for integrating an inner cylinder and an outer cylinder made of metal and concentrically overlapped without requiring large-scale facilities in an HIP method, and also to provide a method enabling joining of materials having high rigidity. SOLUTION: The joining method of an inner cylindrical member and an outer cylindrical member comprises a step for processing the outer surface of the inner cylindrical member to be bonded into a design shape, a step for mounting a brazing material on the outer surface of the inner cylindrical member, a step for fitting the inner cylindrical member in the outer cylindrical member to be bonded, a step for covering the outer cylindrical member with a holder comprising a C/C material, a step for heating the inner cylindrical member, the outer cylindrical member, and the holder which are in a nested state to a temperature above the melting temperature of the brazing material and applying contacting pressure caused by the difference of thermal expansions of the inner cylindrical member, the outer cylindrical member, and the holder, and a step for taking out the members from the holder after cooling them. COPYRIGHT: (C)2010,JPO&INPIT