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1. 发明授权

US06210632B1 Cemented carbide body with increased wear resistance 有权
标题翻译：具有增加耐磨性的硬质合金体
公开(公告)号：US06210632B1
公开(公告)日：2001-04-03
申请号：US09214924
申请日：1999-04-01
申请人： Ake Östlund , Mats Waldenström , Ove Alm
发明人： Ake Östlund , Mats Waldenström , Ove Alm
IPC分类号： B22F102
CPC分类号： C22C1/051 , B22F1/0003 , B22F1/0014 , B22F1/0081 , B22F2998/00 , C22C29/08 , C23C30/005 , B22F9/026
摘要： As there is disclosed a cemented carbide body comprising WC with an average grain size of 0.5 &mgr;m and the difference in grain size within each group is >1 &mgr;m.
摘要翻译：由于公开了在粘结相中平均粒径小于10μm的WC的硬质合金体。在硬质合金体中，WC晶粒可以分为至少两组，其中一组较小的晶粒具有最大晶粒尺寸，而一组较大晶粒具有最小晶粒尺寸bmin，并且每组包含至少10％的 WC颗粒的总量。根据本发明，bmin-amax>0.5μm，每组中的晶粒尺寸差异大于1um。

2. 发明授权

US06221479B1 Cemented carbide insert for turning, milling and drilling 有权
标题翻译：用于车削，铣削和钻孔的硬质合金刀片
公开(公告)号：US06221479B1
公开(公告)日：2001-04-24
申请号：US09214923
申请日：1999-04-20
申请人： Mats Waldenström , Åke Östlund , Ove Alm
发明人： Mats Waldenström , Åke Östlund , Ove Alm
IPC分类号： C04B3556
CPC分类号： C23C30/005 , B22F1/0003 , B22F1/0081 , B22F2998/00 , C22C1/051 , C22C29/08 , Y10T428/25 , Y10T428/252 , B22F9/026
摘要： 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.
摘要翻译：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。

3. 发明授权

US06468680B1 Cemented carbide insert with binder phase enriched surface zone 有权
标题翻译：具有粘结相富集表面区域的硬质合金刀片
公开(公告)号：US06468680B1
公开(公告)日：2002-10-22
申请号：US09720654
申请日：2001-02-20
申请人： Mats Waldenström , Leif Åkesson
发明人： Mats Waldenström , Leif Åkesson
IPC分类号： C22C2908
CPC分类号： C22C1/051 , B22F2998/00 , B22F2998/10 , B22F2999/00 , C22C29/08 , Y10T428/252 , C23C14/00 , C23C16/00 , B22F1/0014 , B22F1/025 , B22F3/1028 , B22F3/1007 , B22F2201/30 , B22F2207/03
摘要： The present invention relates to a coated cemented carbide insert with a binder phase enriched surface zone. The WC-grains have an average grain size in the range 1.0-3.5 &mgr;m, preferably 1.3-3.0 &mgr;m and the number of WC-grains larger than 2 times the average grain size is less than 10 grains/cm2 measured on a representative polished section 0.5 cm2 large, preferably less than 5 grains/cm2, and the number larger than 3 times the average grain size is less than 5 grains/cm2, preferably less than 3 grains/cm2. The cemented carbide is made by powder metallurgical methods and is in particular characterized in that the cooling rate, CR, from the sintering temperature, ST, exhibits the relationship 10
摘要翻译：本发明涉及具有粘结相富集表面区域的涂覆硬质合金刀片。 WC颗粒的平均晶粒尺寸在1.0-3.5μm，优选1.3-3.0μm的范围内，并且大于平均晶粒尺寸的2倍的WC晶粒数小于10个晶粒/ cm 2，在典型的抛光部分 0.5cm 2大，优选小于5粒/ cm 2，并且平均粒径的3倍以上的数小于5粒/ cm 2，优选小于3粒/ cm 2。硬质合金通过粉末冶金方法制成，其特征在于，烧结温度ST的冷却速率CR表现出10

4. 发明授权

US06673307B1 Method of making cemented carbide 有权
标题翻译：制造硬质合金的方法
公开(公告)号：US06673307B1
公开(公告)日：2004-01-06
申请号：US09743090
申请日：2001-03-28
申请人： Mikael Lindholm , Mats Waldenström , Mats Ahlgren
发明人： Mikael Lindholm , Mats Waldenström , Mats Ahlgren
IPC分类号： B22F100
CPC分类号： C22C1/051 , B22F2998/00 , B22F2998/10 , B22F2999/00 , B22F9/026 , B22F1/0014 , B22F2207/03 , B22F1/0003 , B22F1/025 , B22F3/105 , C22C29/08
摘要： The present invention relates to a method of making a cemented carbide by mixing powder of WC and possibly other powders forming hard constituents and binder phase and pressing agent, drying, pressing and sintering whereby; the mixing is wet mixing with no change in grain size or grain size distribution of the hard constituent powders; the WC grains are coated with binder metal and deagglomerated prior to the mixing. The sintering is made by microwave sintering at 1325-1410° C. with a holding time of 5-15 min. As a result a cemented carbide with improved properties is obtained.
摘要翻译：本发明涉及通过混合WC的粉末和可能的其它形成硬成分的粉末和粘结相和压制剂，干燥，压制和烧结来制造硬质合金的方法; 混合是湿混合，硬组分粉末的粒度或粒度分布没有变化; WC颗粒在粘合剂金属之前被涂覆并在混合之前被解聚。通过微波烧结在1325-1410℃进行烧结，保持时间为5-15分钟。结果得到具有改进性能的硬质合金。

5. 发明授权

US06214287B1 Method of making a submicron cemented carbide with increased toughness 有权
标题翻译：制造具有增强韧性的亚微米硬质合金的方法
公开(公告)号：US06214287B1
公开(公告)日：2001-04-10
申请号：US09544171
申请日：2000-04-06
申请人： Mats Waldenström
发明人： Mats Waldenström
IPC分类号： B22F102
CPC分类号： C22C1/051 , B22F2005/001 , B22F2998/00 , C22C29/08 , B22F1/025 , B22F9/026
摘要： The present invention relates to a method of making a cemented carbide comprising WC, 6-12 wt. % Co and 0.1-0.7 wt. % Cr, wherein the WC-grains are coated with Cr prior to mixing and no milling takes place during the mixing step. As a result a cemented carbide with improved properties is obtained.
摘要翻译：本发明涉及一种制造硬质合金的方法，所述硬质合金包括WC，6-12wt。％Co和0.1-0.7wt。％Cr，其中在混合之前，将WC颗粒涂覆有Cr，并且在混合步骤期间不进行研磨。结果得到具有改进性能的硬质合金。

6. 发明授权

US07514061B2 Method of making submicron cemented carbide 失效
标题翻译：制造亚微米硬质合金的方法
公开(公告)号：US07514061B2
公开(公告)日：2009-04-07
申请号：US10833187
申请日：2004-04-28
申请人： Rickard Sandberg , Mathias Tillman , Mats Waldenström
发明人： Rickard Sandberg , Mathias Tillman , Mats Waldenström
IPC分类号： C01B31/34
CPC分类号： C22C1/055
摘要： The present invention relates to a method of making tungsten carbide powder by dissolving at least one organic or inorganic metal salt or compound of at least one of the groups IV, V, and VI of the periodic system preferably Cr, V, Mo and W in at least one polar solvent. Powder of WO3 is added to the solution, the solvent is evaporated, the remaining powder is heat treated in reducing atmosphere, mixed with carbon and carburized.
摘要翻译：本发明涉及通过将周期性系统中优选为Cr，V，Mo和W的IV，V，和VI族中的至少一种的至少一种的有机或无机金属盐或化合物溶解在其中来制备碳化钨粉末的方法至少一种极性溶剂。将WO3粉末加入到溶液中，蒸发溶剂，剩余的粉末在还原气氛中进行热处理，与碳混合并渗碳。

7. 发明授权

US06352571B1 Method of making metal composite materials 失效
标题翻译：制作金属复合材料的方法
公开(公告)号：US06352571B1
公开(公告)日：2002-03-05
申请号：US09204354
申请日：1998-12-04
申请人： Mats Waldenström , Rolf Svensson
发明人： Mats Waldenström , Rolf Svensson
IPC分类号： B22F924
CPC分类号： C22C1/051 , B22F1/025 , B22F2998/10 , B22F2999/00 , B22F9/24 , B22F9/22
摘要： One or more metal salts of at least one iron group metal containing organic groups are dissolved in at least one polar solvent and complex bound with at least one complex former comprising functional groups in the form of OH or NR3, (R═H or alkyl). In addition, at least one insoluble, reducible salt of at least one iron group metal is suspended in the solution. Hard constituent powder and, optionally, a soluble carbon source are added to the solution. The solvent is evaporated and the powder mass is heat treated in inert and/or reducing atmosphere. As a result, a powder mixture is obtained which, after addition of a pressing agent, can be compacted and sintered according to standard practice to form a body containing hard constituents in a binder phase.
摘要翻译：至少一种含有机基团的铁族金属的一种或多种金属盐溶解在至少一种极性溶剂中，并且与至少一种包含OH或NR 3（R = H或烷基）形式的官能团的络合物结合，。此外，将至少一种铁族金属的至少一种不溶性可还原的盐悬浮在溶液中。将硬组分粉末和任选的可溶性碳源加入到溶液中。蒸发溶剂，粉末物质在惰性和/或还原气氛中进行热处理。结果，得到粉末混合物，在加入压制剂之后，可以根据标准做法压实和烧结以形成含有粘结相中的硬组分的体。

8. 发明授权

US06294129B1 Method of making a cemented carbide body with increased wear resistance 有权
标题翻译：制造具有增加的耐磨性的硬质合金体的方法
公开(公告)号：US06294129B1
公开(公告)日：2001-09-25
申请号：US09482083
申请日：2000-01-13
申请人： Mats Waldenström
发明人： Mats Waldenström
IPC分类号： B22F102
CPC分类号： C22C1/051 , B22F2005/001 , B22F2998/00 , B22F2999/00 , C22C29/08 , B22F9/026 , B22F1/0014
摘要： The present invention relates to a method of making a cemented carbide body with a bimodal grain size distribution by powder metallurgical methods including wet mixing, without milling, of WC-powders with different grain size distributions with binder metal and pressing agent, drying, pressing and sintering. The grains of the WC-powders are classified in at least two groups, a group of smaller grains and a group of larger grains. According to the method of the present invention, the grains of the group of smaller grains are precoated with a growth inhibitor with or without binder metal.
摘要翻译：本发明涉及一种通过粉末冶金方法制造具有双峰粒度分布的硬质合金体的方法，包括：不研磨具有不同粒度分布的粘结金属和压制剂的WC粉末的湿混合，干燥，压制和烧结。 WC粉末的颗粒分为至少两组，一组较小的颗粒和一组较大的颗粒。根据本发明的方法，用具有或不具有粘结剂金属的生长抑制剂预涂一组较小颗粒的颗粒。

9. 发明授权

US06273930B1 Method of making a cemented carbide powder with low compacting pressure 有权
标题翻译：制造具有低压实压力的硬质合金粉末的方法
公开(公告)号：US06273930B1
公开(公告)日：2001-08-14
申请号：US09543101
申请日：2000-04-04
申请人： Mats Waldenström
发明人： Mats Waldenström
IPC分类号： C22C2902
CPC分类号： C22C1/051 , B22F2998/00 , B22F2998/10 , C22C29/08 , B22F9/026 , B22F9/04 , B22F1/0003
摘要： The present invention relates to a method of making a cemented carbide with submicron WC grain size with a powder metallurgical technique including milling, pressing and sintering. The method includes milling all components except WC for about three hours, then adding the WC powder and milling for about ten additional hours. In this way a cemented carbide powder with acceptable low compacting pressure is obtained.
摘要翻译：本发明涉及一种通过粉末冶金技术制造具有亚微米WC晶粒尺寸的硬质合金的方法，包括研磨，压制和烧结。该方法包括除WC以外的所有组分研磨约3小时，然后加入WC粉末并研磨约10小时。以这种方式获得具有可接受的低压实压力的硬质合金粉末。

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