发明名称 Dual tungsten carbide boot
摘要 A planting tool for depositing seed and/or fertilizer within a furrow including a soil opener and a seed boot attached to the soil opener. The seed boot includes a synclinal shape housing and at least one furrow forming wing that protrudes below the body of the seed boot. Each wing of the seed boot has at least one wear resistant leading insert positioned in front of and in juxtaposition to at least one wear resistant trailing insert that are each secured to at least a portion of the lower forward surface of the wing and that are each in juxtaposition to a portion of a furrow forming edge of the wing. The wear resistant leading insert and the wear resistant trailing insert have cobalt concentrations of from about 15 to 22 weight percent, and from about 8 to 14 weight percent, respectively.
申请公布号 US6640731(B1) 申请公布日期 2003.11.04
申请号 US20020179629 申请日期 2002.06.25
申请人 KENNAMETAL INC.;FLEXI-COIL LTD. 发明人 ROWLETT DON C.;SWAB GERRY S.;HENRY JAMES W.;WIEBE DAVE
分类号 A01B15/02;A01C5/06;(IPC1-7):A01C5/06 主分类号 A01B15/02
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