 |
case-hardenCASE-HARDEN, v.t. To harden the outer part or superficies, as of iron, by converting it into steel. This may be done by putting the iron into an iron box, with a cement, and exposing it, for some hours, to a red heat. |
|
case-hardenCASE-HARDEN, v.t. To harden the outer part or superficies, as of iron, by converting it into steel. This may be done by putting the iron into an iron box, with a cement, and exposing it, for some hours, to a red heat. |