| 摘要 |
A method of repairing a heavy iron article (for example, ingot stools and ingot moulds) in which metal of a composition substantially that of the metal of the article to be repaired (except for alloying components, flux, and covering substances) is supplied to the portion to be repaired. The metal supplied and portion to be repaired are electrothermally heated to render them molten for a substantial period of time by applying electrothermal power of at least 250 kVA adjacent the portion of the article to be assembled in a reducing environment for a part of the time and then the article is slowly cooled. |
