Method for controlling variations of al-ti-c alloy grain refinement ability through controlling compression ratio

Abstract

A method for controlling variations of Al—Ti—C alloy crystal grain refinement ability through controlling a compression ratio of sectional area of Al—Ti—C alloy including: A. establishing a relationship between variations of refinement ability of Al—Ti—C alloy crystal grain and parameters of press process of the Al—Ti—C alloy; setting the parameters of press process and controlling the variation of the refinement ability of the Al—Ti—C alloy crystal grain through controlling a value of the compression ratio.

1 . A method for controlling variations of Al—Ti—C alloy crystal grain refinement ability through controlling a compression ratio of sectional area of Al—Ti—C alloy comprising:
 a. establishing a relationship between variations of refinement ability of Al—Ti—C alloy crystal grain and parameters of press process of the Al—Ti—C alloy:
   Δ AA=K·D·V /(Δ T·n )
 
 
 wherein ΔAA=AA 1 −AA 2 , AA 1  represents a refinement ability value of the Al—Ti—C alloy before the press process, AA 2  representing a refinement ability value of the Al—Ti—C alloy after the press process, K being a constant, wherein D=S 1 /S 2 ,S 1  being denoted for the sectional area before press process, and S 2  being denoted for the sectional area after the press process, wherein ΔT represents a temperature variation of the Al—Ti—C alloy before the press process and after the press process, V representing a line speed of an outlet, n representing a number of the standers of process machine; and 
 b. setting the parameters V, ΔT, and n, and controlling the ΔAA value through controlling a value of the compression ratio D.