发明名称 A PROCESS OF MAKING PORGED OR ROLLED STEEL ROD FROM LEDEBURITIC TOOL STEELS
摘要 A fusible electrode is provided, which consists of ledeburitic tool steel and is suitable for use in a remelting process. Said electrode is melted. A slab ingot is built up by solidifying the resulting melt in a water-cooled slab ingot mold. Said slab ingot is upset by a succession of forging steps in the direction of the longitudinal axis of said slab ingot to provide a semifinished product. Said semifinished product is subjected to a stretching deformation to an extent of at least two times, based on the cross-section of said semi-finished product, to form a stretched product having the cross-section desired for said rod. From said stretched product, a rod is obtained which has a fairly homogeneous carbide distribution throughout its cross-section and length.
申请公布号 ZA7106560(B) 申请公布日期 1972.06.28
申请号 ZA19710006560 申请日期 1971.09.30
申请人 GEBR BOEHLER & CO AG 发明人 PLOECKINGER E;HOLZGRUBER W
分类号 C21D7/13;C22B9/18 主分类号 C21D7/13
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