Method and apparatus for forming titanium-aluminium based alloys

摘要

A method for forming a titanium-aluminum based alloy in which titanium subchlorides and aluminum that have already been heated in a first zone are moved into and heated in an intermediate zone to a temperature at which at least a portion of the material can accrete and form a cake on a surface located in the intermediate zone. The non-caked material is moved to and heated in a second zone to form the titanium-aluminum based alloy. The caked material is periodically removed from the surface in the intermediate zone and heated with the non-caked material in the second zone.

主权项

1. A method for forming a titanium-aluminium based alloy, the method comprising the steps of:
heating a precursor material comprising titanium subchlorides and aluminium up to a first temperature at which reactions between the titanium subchlorides and aluminium occur, and removing any gaseous by-product formed; moving the resultant material into an intermediate zone in which the material is heated to a temperature at which at least a portion of the material can accrete and form a cake on a surface located in the intermediate zone; moving non-caked material out of the intermediate zone and heating the non-caked material to a second temperature at which reactions to form the titanium-aluminium based alloy occur, whilst transferring any gaseous by-product formed to the intermediate zone where it can condense and mix with any cake on the surface; and periodically removing the caked material from the surface in the intermediate zone and heating it with the non-caked material to the second temperature.