| 摘要 |
A PROCESS FOR PRODUCTION OF INDUSTRIAL TUBES OR SECTION BARS FROM METAL, SUCH AS COPPER, COPPER ALLOYS, SPECIAL BRASSES, CUPRONICKEL OR ALUMINIUM BRONZES, COMPRISES THE FOLLOWINGS STEPS: • MELTING THE METAL MATERIAL WITH POSSIBLE COMPATIBLE WORKING SCRAPS; • OBTAINING A PREFORM FROM A CASTING;• ROLL MILLING AND/OR DRAWING SAID PREFORM TO REDUCE ITS SECTION; DRAWING WITH ONE OR MORE CONCATENATED INTERVENTION SAID ROLL—MILLED AND/OR DRAWN PREFORM, IN ORDER TO FURTHER REDUCE ITS SECTION UP TO THE SIZE DESIRED; STRAIGHTENING AND POSSIBLY SUBMITTING TO THERMAL AND/OR DEGREASIRIG TREATMENT THE DIMENSIONALLY FINISHED PRODUCT; AND • CUTTING THE FINISHED PRODUCT TO MEASURE.(FIG. 2)
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