Preparation of W/CuCrZr mono-block test mock-up using vacuum brazing technique

10th Asia Plasma and Fusion Association Conference

Premjit Singh, K.^1 ; Khirwadkar, S.^1 ; Bhope, Kedar^1 ; Patel, Nikunj^1 ; Mokaria, Prakash^1

Institute for Plasma Research, Bhat, Gandhinagar

382428, India^1

关键词: Filler materials;    Joint integrity;    OFHC copper;    Ultrasonic immersion technique;    Vacuum environment;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/823/1/012023/pdf
DOI  :  10.1088/1742-6596/823/1/012023

来源: IOP

【 摘 要 】

Development of the joining for W/CuCrZr mono-block PFC test mock-up is an interesting area in Fusion R&D. W/Cu bimetallic material has been prepared using OFHC Copper casting approach on the radial surface of W mono-block tile surface. The W/Cu bimetallic material has been joined with CuCrZr tube (heat sink) material with the vacuum brazing route. Vacuum brazing of W/Cu-CuCrZr has been performed @ 970°C for 10 min using NiCuMn-37 filler material under deep vacuum environment (10-6mbar). Graphite fixture was used for OFHC Copper casting and vacuum brazing experiments. The joint integrity of W/Cu-CuCrZr mono-block mock-up of W/Cu and Cu-CuCrZr interface has been checked using ultrasonic immersion technique. The result of the experimental work is presented in the paper.