Manufacture of clad metals |
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| 申请号 | US3702497D | 申请日 | 1971-01-07 | 公开(公告)号 | US3702497A | 公开(公告)日 | 1972-11-14 |
| 申请人 | POLYMETALLURGICAL CORP; | 发明人 | DION PAUL A; HAGARMAN PAUL O; | ||||
| 摘要 | A continuous process for cladding a metal core rod with a dissimilar metal sheath. Contaminants are removed from the periphery of a moving length of core rod. While the core rod is maintained contaminant-free, a thin annular sheath of cladding metal is extrusion bonded around the periphery of the core rod to produce a clad rod suitable for subsequent drawing into wire without the need for sintering, metal removal or other finishing operations on the clad rod. | ||||||
| 权利要求 | 2. The process of claim 1 wherein said core rod is aluminum and said cladding metal is tin. 3. The process of claim 1 wherein said cladding metal is applied by being annularly extruded around said core rod. 4. The process of claim 1 wherein said contaminants are removed by being rotary milled from the Periphery of said core rod. 5. The process of claim 4 wherein said cladding metal is applied by being annularly extruded around said core rod. 6. The process of claim 1 wherein said contaminants are removed by being initially scored and subsequently rotary milled from the periphery of said core rod. 7. The process of claim 4 wherein the extrusion step is performed less than one second after the rotary milling step is performed. 8. The process of claim 1 wherein said core rod is maintained contaminant-free by preventing air from contacting the peripheral surface of said core rod. 9. The process of claim 1 wherein said core rod is maintained contaminant-free by completely surrounding said rod with a non-oxidizing gas. 10. The process of claim 1 wherein said solid phase roll bonding reduces the diameter of said clad rod by approximately 10 to 35 percent. 11. The process of claim 3 wherein said thin annular sheath of cladding metal is heated to a molten state prior to being extruded around said core rod. 12. The process of claim 3 wherein said thin annular sheath of cladding metal is maintained in a solid, plastic state prior to being extruded around said core rod. |
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