| 释义 |
Forehearth
Fore´hearth`
| n. | 1. | (Metal.) The forward extension of the hearth of a blast furnace under the tymp. |
Forehearth
forehearth[′fȯr‚härth] (metallurgy) A bay in front of the hearth of a furnace. A receptacle in front of a hearth to receive the molten products. Forehearth a crucible in the lower front part of a cupola, where molten superheated pig iron flowing from the hearth accumulates; when necessary, the pig iron is tapped through a taphole into the ladle. In the casting of large parts, the forehearth ensures even composition of the metal. |