GAO Limin, WU Jiuhong, SHAO Chunling

(Northwest Light Industrial Engineering Institute)

Guo Jingkang

(Shanghai Metallurgical Institute, Chinese Academy of Sciences)

Abstract: The one dimensional lever rule in the Phase diagram is generalized to be the lever rule for polynary batching，seystem. With the help of this rule, the feasible sphere problem of the solution for the calculation of batch formula is thoroughly discussed, and the geometrical and technological explanations are given. All this, is instructive to the design of batch fonnula.

Keywords: Lever rule, batch, formula