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    • 1. 发明授权
    • Cemented carbide insert for turning, milling and drilling
    • 用于车削,铣削和钻孔的硬质合金刀片
    • US06221479B1
    • 2001-04-24
    • US09214923
    • 1999-04-20
    • Mats WaldenströmÅke ÖstlundOve Alm
    • Mats WaldenströmÅke ÖstlundOve Alm
    • C04B3556
    • C23C30/005B22F1/0003B22F1/0081B22F2998/00C22C1/051C22C29/08Y10T428/25Y10T428/252B22F9/026
    • There is disclosed a cemented carbide insert with excellent properties for machining of steels and stainless steels. The cemented carbide comprises WC and 4-25 wt-% Co. The WC-grains have an average grain size in the range 0.2-3.5 &mgr;m and a narrow grain size distribution in the range 0-4.5 &mgr;m. According to the method of the invention a cemented carbide cutting tool insert is made by mixing powders of WC, TiC, TaC and/or NbC, binder metal and pressing agent, drying preferably by spray drying, pressing to inserts and sintering. The method characterised in that a deagglomerated WC-powder with a narrow grain size distribution is used, that the powders of TiC, TaC and/or NbC are deagglomerated and that the mixing is wet mixing with no change in grain size or grain size distribution.
    • 公开了一种用于钢和不锈钢加工的优异性能的硬质合金刀片。 硬质合金包括WC和4-25wt%的Co。WC-晶粒的平均晶粒尺寸在0.2-3.5μm的范围内,并且窄的粒度分布在0-4.5μm的范围内。根据 通过混合WC,TiC,TaC和/或NbC,粘合剂金属和压制剂的粉末,优选通过喷雾干燥,压制成型和烧结来制备硬质合金刀具刀片。 该方法的特征在于使用具有窄粒度分布的解团聚WC粉末,其中TiC,TaC和/或NbC的粉末被解团聚,并且混合是湿混合而不改变晶粒尺寸或晶粒尺寸分布。
    • 5. 再颁专利
    • Cemented carbide insert for turning, milling and drilling
    • 用于车削,铣削和钻孔的硬质合金刀片
    • USRE40026E1
    • 2008-01-22
    • US11449008
    • 1997-07-08
    • Mats WaldenstromAke OstlundOve Alm
    • Mats WaldenstromAke OstlundOve Alm
    • C04B35/56
    • C23C30/005B22F1/0003B22F1/0081B22F2998/00C22C1/051C22C29/08Y10T428/25Y10T428/252B22F9/026
    • There is disclosed a cemented carbide insert with excellent properties for machining of steels and stainless steels. The cemented carbide comprises WC and 4-25% Co. The WC-grains have an average grain size in the range 0.2-3.5 μm and a narrow grain size distribution in the range 0-4.5 μm.According to the method of the invention a cemented carbide cutting tool insert is made by mixing powders of WC, TiC, TaC and/or NbC, binder metal and pressing agent, drying preferably by spray drying, pressing to inserts and sintering. The method characterised in that a deagglomerated WC-powder with a narrow grain size distribution is used, that the powders of TiC, TaC and/or NbC are deagglomerated and that the mixing is wet mixing with no change in grain size or grain size distribution.
    • 公开了一种用于钢和不锈钢加工的优异性能的硬质合金刀片。 硬质合金包括WC和4-25%的Co。WC颗粒的平均晶粒尺寸在0.2-3.5μm的范围内,窄的粒度分布在0-4.5μm的范围内。 根据本发明的方法,通过混合WC,TiC,TaC和/或NbC,粘合剂金属和压制剂的粉末,优选通过喷雾干燥,压制成型和烧结来干燥硬质合金刀具插入物。 该方法的特征在于,使用具有窄粒度分布的解团聚WC粉末,将TiC,TaC和/或NbC的粉末进行解团化,并且混合是湿式混合,晶粒尺寸或晶粒尺寸分布没有变化。