| 摘要 |
PCT No. PCT/FI85/00077 Sec. 371 Date Jun. 30, 1986 Sec. 102(e) Date Jun. 30, 1986 PCT Filed Sep. 18, 1985 PCT Pub. No. WO86/01765 PCT Pub. Date Mar. 27, 1986.A method and a tool for freeing of parts held fast, especially for freeing of bolts and nuts rusted fast under water. According to the invention an electric arc is created between the rotating endpiece (21) of the tool and the fast held part (1), with which the fast held part is heated and/or thermally cut, after which the fast held part can be freed from the fastened object. |
