| 摘要 |
<p>An electrode for electric arc furnaces, comrpising a water-cooled metallic electrode holder (1) and a consumable section (3) connected to the electrode holder by means of a threaded nipple (2) the electrode holder having a protective jacket made up of rings (4, 5, 10, 20). Between the consumable section (3) and the electrode holder (1) there is a disk (11, 19) which, in the event of a fracture of the consumable section (3), remains attached to the electrode holder (1), thus protecting it against the electric arc. The disk (11, 19) may be attached to the electrode holder (1) in various ways. E.g., the lowest ring (10, 20) of the protective jacket may have the form of a sleeve nut, its bottom being represented by the disk (11, 19) which lies between the electrode holder (1) and the consumable section (3), or the electrode holder (1) may have thorns (23) which enter the disk (11) when the consumable section is screwed on, thus retaining said disk (11). The sleeve nut shaped protective member may constitute one solid piece or consist of two separate parts.</p> |
