| 摘要 |
1,113,414. Arc-welding systems. UNION CARBIDE CORPORATION. 5 Aug., 1965 [10 Aug., 1964], No. 33543/65. Heading H2H. A consumable electrode D.C. arc-welding system has an inductance of low value included in the circuit when commencing welding which value is increased by a timing means 14 unshunting inductor 4 after a determined interval. |
