Cooling equipment and strip casting apparatus and method of cooling a neodymium-based sintered alloy casting flakes for magnet

摘要

PPROBLEM TO BE SOLVED: To provide a cooling apparatus which can change its cooling capacity in order to optimize the structural control, and particularly can lower the cooling capacity in a high temperature range without degrading the cooling capacity in a low temperature range, which affects the cooling time, and further to provide a strip casting apparatus for an alloy of a neodymium sintered magnet, which includes the cooling apparatus described above, and further to provide a method for cooling the cast sheet of the alloy for the neodymium sintered magnet. PSOLUTION: A cooling unit is formed by covering a plate shape water cooling body with a sheet metal cover so as to keep a gap, and further by inserting one or more heat shielding layers into the gap. In addition, a plurality of such cooling units are arranged in a cast sheet storage container at an appropriate interval, and further the cooling ability is variably controlled by evacuating the gap portion or by introducing helium into the gap portion in order to promote the cooling effect. PCOPYRIGHT: (C)2006,JPO&NCIPI