Korea has developed a helium cooled ceramic reflector test blanket module (TBM) for fusion reactors. An advanced reduced activation alloy has been developed as a structural material and various joining methods such as E-beam welding, tungsten inert gas (TIG) welding, laser welding, and hot isostatic pressing have been applied to establish its fabrication method and procedure. Based on the current design of the TBM and breeding blanket, TIG welding was selected as the main joining method, and the U-shaped first wall (FW) was adopted. For welding of the breeding blanket, a special joining technique without a permanent backing strip with simultaneous full penetration welding in accordance with the design rules of class N2_RX of RCC-MRx is required for the pressure vessel. For the U-shaped FW, distortion of the drilled cooling hole during the bending should be limited. Three small mock-ups were fabricated in this study to investigate these issues. The joints and bending parts were visually observed after cutting, and the hydrostatic pressure test was performed for regions with low thickness. The results show that the proposed fabrication methods are applicable in the fabrication procedure development for the breeding blanket.

韩国已经为聚变反应堆开发了氦冷却的陶瓷反射器试验毯模块（TBM）。已经开发出一种先进的还原活化合金作为结构材料，并采用了各种连接方法，例如电子束焊接，钨极惰性气体（TIG）焊接，激光焊接和热等静压来确定其制造方法和步骤。根据目前TBM和育种毯的设计，选择TIG焊接作为主要连接方法，并采用U形第一壁（FW）。对于育种毯的焊接，根据N2 _RX类的设计规则，一种特殊的连接技术，无需永久性衬板，同时进行全熔透焊接压力容器需要RCC-MRx的数量。对于U形FW，应限制弯曲时钻出的冷却孔的变形。本研究中制作了三个小模型，以调查这些问题。切割后目视观察接头和弯曲部分，并对低厚度区域进行静水压力测试。结果表明，所提出的制造方法可用于育种毯的制造工艺开发。