发明名称 PROCEDIMENTO PER LA PRODUZIONE DI BARRE METALLICHE
摘要 For producing metallic bar stock there is first of all fabricated a primary product of substantially regularly round or angular cross-section, and this primary product is then deformed in cross-section to the final dimension corresponding to the bar stock by means of shaping. To provide for an efficient production of high-quality bar stock also in a minor quantity, the completely solidified primary product is subjected to a forging operation for a structural improvement before shaping it to the final dimension, during which forging off in one processing plane a spreading-restricted reduction of the cross-section in the range from (1.5 to 5):1 is effected.
申请公布号 ITMI970338(A1) 申请公布日期 1998.08.18
申请号 IT1997MI00338 申请日期 1997.02.18
申请人 GFM HOLDING AG 发明人 BLAIMSCHEIN GOTTFRIED;HEIN OTTO;WIESER RUPERT
分类号 B21B1/02;B21B1/18;B21B1/46;B21B15/00;B21B17/00;B21C37/04 主分类号 B21B1/02
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