INVESTMENT CASTING MOLD OF TITANIUM ALUMINIDE ALLOY

摘要

A mould for accurately cast titanium alloy is arranged to produce a titanium aluminide alloy cast article, will not be by being maintained at the thermal stability of not only normal temperature, but also high temperature forms a reaction layer on the surface of cast article. The mould for accurately casting metal with high activity (such as titanium aluminide alloy) by use fusing alumina powder rift grain 30~45 microns and one colloidal silica binders size generation. In terms of use mould made of zirconium oxide, the Surface hardened layer of cast article is by reacting with cast article. The mould made of the alumina melted reduces the thermal stability of cost and safety.