| 摘要 |
PURPOSE:To manufacture an eccentric compound metallic wire formed by coating a core with metal of different kinds while stabilizing the position of the core and causing no breaking of the core, by providing a die with a hole different from an extrusion hole wherein the core is run eccentrically, and running the metal of different kind therein simultaneously. CONSTITUTION:The die 2 of an extruder is provided with >=1 hole 4 different from the extrusion hole 3 near the hole 2. The core 1 of metal having high deformation resistance such as iron is run eccentrically through the extrusion hole 3 from a nipple 7 and billets 5a and 5b of different metals, such as Al, having lower deformation resistance than said core 1 are introduced from a supply opening 9 and extruded by rams 8a and 8b from said extrusion hole 3 and different hole 4 simultaneously. Consequently, the flow of the different metal in the extrusion hole 3 is made to uniform, and while the position of the core 1 is stabilized, the eccentric compound metallic wire of stable quality coated with the metal of different kinds is manufactured efficiently without causing the breaking of the core 1. |
