a method for producing pure niobium end group component of superconducting accelerating cavities

摘要

From pure niobium plate material, in the mainly flat-bottomed cylindrical diaphragm become pressing, preferably above flange area of the pressing, and control of the sliding speed and / or motion, by performing control of the temperature and / or distribution, the slope of the die simultaneously, more preferably, in the above pressing, the niobium plate material and in response to changes in the plate thickness and material, by dynamically controlling the blank-holding force, more preferably, the blanks of the pure niobium plate material above, and by a deformed blank is used for the acceleration of charged particles to produce the pure niobium end group parts of a superconducting accelerating cavities to be. .BACKGROUND 7