Method for producing a raw material alloy and powders and sintered magnets of rare earth magnets

Method for producing R-T-Q based rare earth magnet material alloy according to the present invention, first, R-T-Q based rare earth alloy (R is a rare earth element, T is a transition metal element, Q is B, C, N, Al , Si, and at least one element) selected from the group consisting of P, as the rare earth element R, Nd, Pr, Y, La, Ce, Pr, Sm, Eu, Gd, Er, Tm, Yb and providing at least one element R Next, a first cooling step of forming a solidified alloy by quenching a melt of the alloy to a temperature below 1000 ° C. 700 ° C. or higher, thus resulting solidified alloy, the temperature range of 700 ° C. or higher 900 ° C. or less a temperature holding step of holding during the 15 seconds 600 seconds or more at a temperature comprised, and a second cooling step of cooling the solidified alloy to a temperature of 400 ° C. or less performed.