Manufacture of a shield prototype for primary wall modules

Autor: A. Cottin, P. Lorenzetto, B. Boireau, P. Bucci, C. Boudot, O. Gilia
Rok vydání: 2008
Předmět:
Zdroj: Fusion Engineering and Design. 83:1294-1299
ISSN: 0920-3796
Popis: In the frame of the blanket module (BM) development for ITER, an RD the shield was completed using powder HIPping together with forged block embedding the tubes in a final solid part. The powder/solid HIP is used to minimize the number of BM seal welds in front of plasma. It increases the reliability of the components during operation. About 300 kg of stainless steel powder was densified together with the forged block. 3D measurement was done before and after the HIP cycle to collect the data to be compared with theoretical model. It allows to predict the main distortions of the solid bulk. Ultrasonic examination of the densified powder on the stainless steel bulk and around the bended tubes was performed as well as mechanical characterization of the samples. The recess for stub key attachment on the vacuum vessel side, the hydraulic connector, the key for the primary wall panel attachment on the front side and the link between the four parallel water coolant circuits were then machined to achieve the shield prototype.
Databáze: OpenAIRE