Cu-alloy mold for use in centrifugal casting of Ti or Ti alloy and centrifugal-casting method using the mold.

摘要

In a Cu-alloy mold for use in centrifugal casting of Ti or Ti-alloys, the mold body is made of a Cu alloy satisfying the following relationship: Ts + 0.3 rho >/= 70 where Ts is the tensile strength (kg/mm<2>), and rho is the electrical conductance (% IACS). A cavity disposed in the mold body has the volume which is at most 30% of the volume of the mold body. Also disclosed is a method for centrifugally casting Ti or Ti-alloy by the use of the above-described mold.