초록 ▼

A zirconium alloy sheet containing 2 to 3% of niobium is cooled at a controlled and moderate rate to the ab2, 2′) are cut from the cooled sheet and cold-formed. The grid (1) is assembled from the plates (2, 2′) which are welded together and the completed grid is then returned to the a

A zirconium alloy sheet containing 2 to 3% of niobium is cooled at a controlled and moderate rate to the ab2, 2′) are cut from the cooled sheet and cold-formed. The grid (1) is assembled from the plates (2, 2′) which are welded together and the completed grid is then returned to the a

대표청구항 ▼

A process for manufacturing a cross-bracing grid for a fuel assembly of a pressurized water nuclear reactor, said process comprising the steps of (a) heating a flat product made of a zirconium base alloy which contains 2 to 3% of niobium and which is tin-free at a temperature at which the zirconium

A process for manufacturing a cross-bracing grid for a fuel assembly of a pressurized water nuclear reactor, said process comprising the steps of (a) heating a flat product made of a zirconium base alloy which contains 2 to 3% of niobium and which is tin-free at a temperature at which the zirconium alloy is in the ababa500°and 550°C. for a period of ten to thirty hours.