vacuum treatment

Vacuum treatments are recommended for best strength and premium uses.

"Well, put it in the airlock and give it a few minutes of vacuum treatment.

The plant had three LD converters, facilities for iron desulphurisation and vacuum treatment.

This may be accomplished by adding metallic deoxidizing agents to the melt either before or after it is tapped, or by vacuum treatment, in which carbon dissolved in the steel is the deoxidizer.

The material has an unusually wide range of production methods for a superalloy: electric arc, ladle refined with vacuum treatment; vacuum induction melting; vacuum arc remelting, and even electro slag remelting.