Especially in the basic Bessemer process: continuation of the blow for a short time after decarburization is complete, in order to dephosphorize the steel.
Origin
Late 19th century. From after- + blow.
Definition of after-blow in US English:
after-blow
noun
Metallurgy
Especially in the basic Bessemer process: continuation of the blow for a short time after decarburization is complete, in order to dephosphorize the steel.