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1. 发明专利

JP2012162753A Cemented carbide and method of manufacturing the same, and micro drill 审中-公开
标题翻译：碳化硅及其制造方法和微型钻头
公开(公告)号：JP2012162753A
公开(公告)日：2012-08-30
申请号：JP2011022109
申请日：2011-02-03
申请人： Sumitomo Electric Hardmetal Corp , Sumitomo Electric Ind Ltd , 住友電工ハードメタル株式会社 , 住友電気工業株式会社
发明人： HAYAKAWA TOMOKO , YAMAMOTO EIJI , UCHINO KATSUYA , IIHARA JUNJI
IPC分类号： C22C29/08 , B22F3/10 , B22F3/15 , B23B51/00
摘要： PROBLEM TO BE SOLVED: To provide a cemented carbide having high toughness and strength and having excellent chipping resistance and breaking resistance, to provide a method of manufacturing the same, and to provide a micro drill.SOLUTION: The cemented carbide has a hard phase mainly composed of WC particles and a bonded phase mainly composed of Co. Then, the hard phase is formed by a solid solution of Cr in the WC particles, and the average particle diameter of the WC particles is 0.5 μm or smaller. Furthermore, in the local structure of a Cr atom by an X-ray absorption spectrum method, the Cr atom is bonded to a W atom, and the ratio of (number of the W atoms/{number of the Cr atoms+number of Co atoms}) obtained by dividing the number of the W atoms present within 300 pm from the Cr atom by the sum of the number of the Cr atoms and the number of the Co atoms present within 300 pm from the Cr atom is 0.3 or larger.
摘要翻译：要解决的问题：提供一种具有高韧性和强度并且具有优异的耐崩裂性和抗断裂性的硬质合金，以提供其制造方法，并提供微型钻头。解决方案：硬质合金具有主要由WC颗粒和主要由Co组成的键合相组成的硬相。然后，通过在WC颗粒中的Cr的固溶体形成硬相，并且平均粒径 WC颗粒为0.5μm以下。此外，通过X射线吸收光谱法在Cr原子的局部结构中，Cr原子与W原子键合，（W原子数/ Cr原子数与Co原子数之比由Cr原子存在300μm之内的W原子数与Cr原子之间存在的Co原子数与Cr原子之间在300μm以内的数目之和为0.3以上而得到的W原子数为0.3以上。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2006131974A Cemented carbide 审中-公开
标题翻译：硬质合金
公开(公告)号：JP2006131974A
公开(公告)日：2006-05-25
申请号：JP2004324214
申请日：2004-11-08
申请人： Sumitomo Electric Hardmetal Corp , Sumitomo Electric Ind Ltd , 住友電工ハードメタル株式会社 , 住友電気工業株式会社
发明人： YAMAMOTO EIJI , UCHINO KATSUYA , KITAGAWA NOBUYUKI , HIROSE KAZUHIRO
IPC分类号： C22C29/08
摘要： PROBLEM TO BE SOLVED: To provide a cemented carbide having excellent wear resistance, strength and toughness, and to provide a microdrill composed of the cemented carbide.
SOLUTION: The cemented carbide has a composition comprising, by mass, 5 to 15% Co, at least one kind of additional element selected from V and Cr by 0.5 to 2.0% in total, and the balance WC with inevitable impurities, and in which the average particle diameter of WC is ≤0.3 μm. In the cemented carbide, compounds of the above additional element(s) are not precipitated, and the additional element(s) is made into solid solution in Co. Then, provided that the content (mass%) of Co is defined as (x), and Rockwell hardness (HRA) as (y), y≥ax+b is satisfied; wherein, -0.25≤a
摘要翻译：要解决的问题：提供具有优异的耐磨性，强度和韧性的硬质合金，并提供由硬质合金组成的微型钻头。解决方案：硬质合金具有以质量计含有5至15％Co，至少一种选自V和Cr的额外元素总计为0.5至2.0％，余量为不可避免的杂质的组合物，其中WC的平均粒径≤0.3μm。在硬质合金中，上述附加元素的化合物不析出，并且将附加元素制成固溶体。然后，将Co的含量（质量％）定义为（x ），洛氏硬度（HRA）为（y），y≥ax+ b; 其中，满足-0.25≤a<-0.2,95

3. 发明专利

JP2006117974A Cemented carbide 有权
标题翻译：硬质合金
公开(公告)号：JP2006117974A
公开(公告)日：2006-05-11
申请号：JP2004304944
申请日：2004-10-19
申请人： Sumitomo Electric Hardmetal Corp , Sumitomo Electric Ind Ltd , 住友電工ハードメタル株式会社 , 住友電気工業株式会社
发明人： HIROSE KAZUHIRO , YAMAMOTO EIJI
IPC分类号： C22C29/08 , B23B27/14 , B23C5/16 , C22C1/05
CPC分类号： C22C29/08 , B22F2005/001 , B22F2998/10 , C22C29/067 , B22F3/15
摘要： PROBLEM TO BE SOLVED: To provide a cemented carbide having excellent strength and also toughness by uniformly refining WC therein and effectively suppressing its growth into the coarse one.
SOLUTION: The cemented carbide contains WC with a mean particle diameter of ≤0.3 μm as a hard phase and 5.5 to 15 mass% of at least one kind of iron group metal element as a bonded phase. In addition to the hard phase and the bonded phase, the cemented carbide comprises, by mass%, 0.005 to 0.06 Ti, and 0.04 to 0.2 Cr to the bonded phase by weight ratio, and the balance inevitable impurities. In particular, Ta is not contained.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：待解决的问题：通过在其中均匀地提纯WC并有效地抑制其生长成粗糙度，从而提供具有优异的强度和韧性的硬质合金。解决方案：硬质合金含有作为硬质相的平均粒径≤0.3μm的WC和作为键合相的至少一种铁族金属元素的5.5〜15质量％。除硬质相和结合相以外，硬质合金以重量比计，以键合相重量比计含有0.005〜0.06Ti，0.04〜0.2Cr，余量为不可避免的杂质。特别地，Ta不包含。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2011167777A Drill and manufacturing method for the same 有权
标题翻译：钻孔及其制造方法
公开(公告)号：JP2011167777A
公开(公告)日：2011-09-01
申请号：JP2010031682
申请日：2010-02-16
申请人： Sumitomo Electric Hardmetal Corp , 住友電工ハードメタル株式会社
发明人： HAYAKAWA TOMOKO , YAMAMOTO EIJI , KUROKAWA KAZUO , UCHINO KATSUYA
IPC分类号： B23B51/00
摘要： PROBLEM TO BE SOLVED: To provide a drill with a small diameter used for drilling a print substrate or the like and excellent in fracture resistance, and also to provide a manufacturing method for the same.
SOLUTION: The drill is made of cemented carbide mainly composed of WC and Co. The drill has a blade diameter D of ≤0.5 mm and includes a Co-reducing layer at least on the surface side of the blade groove of the drill and an circumferential part on the inner side. When Co content at the inner circumferential part is Co(i) (mass%) and Co content in the Co-reducing layer is Co(o) (mass%), the ratio of both Co(o)/Co(i) is ≥80% and ≤95% and the thickness of the Co-reducing layer is
摘要翻译：要解决的问题：提供一种用于钻孔印刷基板等的小直径的钻头，并且具有优异的耐断裂性，并且还提供其制造方法。解决方案：钻头由主要由WC和Co组成的硬质合金制成。钻头的刀片直径D≤0.5mm，并且至少在钻头的刀槽的表面侧包括Co还原层和在内侧的周向部分。当内周部的Co含量为Co（i）（质量％），Co还原层中的Co含量为Co（o）（质量％）时，Co（o）/ Co（i） ≥80％，≤95％，Co还原层的厚度<10μm。版权所有（C）2011，JPO＆INPIT

5. 发明专利

JP2006055929A Cermet plate-like body and superabrasive cutting wheel 审中-公开
标题翻译： CERMET板状体和超级切割轮
公开(公告)号：JP2006055929A
公开(公告)日：2006-03-02
申请号：JP2004238809
申请日：2004-08-18
申请人： Allied Material Corp , Sumitomo Electric Hardmetal Corp , 住友電工ハードメタル株式会社 , 株式会社アライドマテリアル
发明人： YAMAMOTO EIJI , YAMAMOTO YOSHIHITO
IPC分类号： B24D5/12 , B24D3/00 , C22C1/05 , C22C29/02 , C22C29/10
摘要： PROBLEM TO BE SOLVED: To provide a cermet plate-like body having high yield and excellent workability at the time of sintering.
SOLUTION: This cermet plate-like body is made by mixing and sintering starting raw material powder made of first hard phase powder, second hard phase powder and binder phase powder. The first hard powder is made of carbide powder of Ti and at least one of carbon nitride powder and nitride powder of Ti, and is included by 40 to 65 wt.% in the starting raw material powder. The second hard phase powder is made of carbide powder, nitride powder and carbon nitride powder of one or more kinds of elements belonging to 4a, 5a and 6a groups in a periodic table. The binder phase powder is made of powder of one or more kinds of Co, Ni and Fe, and is included by 10 to 25 wt.% in the starting raw material powder. The plate-like body contains nitrogen of 0.9 to 4.0 wt.%.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供在烧结时具有高产率和优异的可加工性的金属陶瓷板状体。解决方案：该金属陶瓷板状体通过混合烧结由第一硬质相粉末，第二硬质相粉末和粘结相粉末制成的起始原料粉末而制成。第一硬质粉末由Ti的碳化物粉末和Ti的氮化物粉末和氮化物粉末中的至少一种制成，原料粉末中含有40〜65重量％。第二硬质相粉末由周期表中属于4a，5a和6a族的一种或多种元素的碳化物粉末，氮化物粉末和氮化碳粉末制成。粘结相粉末由一种或多种Co，Ni和Fe的粉末制成，起始原料粉末中含有10〜25重量％。板状体含有0.9〜4.0重量％的氮。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2013060666A Cemented carbide 有权
标题翻译：硬质合金
公开(公告)号：JP2013060666A
公开(公告)日：2013-04-04
申请号：JP2012246788
申请日：2012-11-08
申请人： Sumitomo Electric Hardmetal Corp , 住友電工ハードメタル株式会社
发明人： KOYOSHI YUTA , YAMAMOTO EIJI , KUROKAWA KAZUO , UCHINO KATSUYA , KITAGAWA NOBUYUKI , KAWASHIMA MOTOYOSHI , MAKIHARA TORU , KANAYAMA TATSUYA , MINATO YOSHIHIRO
IPC分类号： C22C29/08 , B23B27/14 , B23B51/00 , C22C1/05
摘要： PROBLEM TO BE SOLVED: To provide a cemented carbide which is suitable for a tool raw material and achieves reduction in uneven wear of a tool thereby contributing to the extension of the life of the tool.SOLUTION: The cemented carbide is formed by bonding between tungsten carbide (WC) particles with a bonding phase mainly composed of cobalt (Co), and the average grain size of the WC particles is 0.1-0.5 μm, and the bonding phase contains 5 to 12 mass% of Co. The average thickness of the bonding phase is 0.14 μm or smaller. The ratio of the bonding phases each having a thickness of 0.5 μm or more is 0.15% or less of the whole bonding phase. In the cemented carbide, the bonding phases (black-colored parts in Fig.1(I)) exist between micro WC particles (gray-colored parts in the same figure) thinly and evenly, and do not agglomerate micro-wisely and do not exist unevenly. Uneven wear can be suppressed and working superior in positional accuracy can be performed over a long-period of time when the cemented carbide having the microstructure like this is utilized for a micro-drill.
摘要翻译：要解决的问题：提供一种适用于工具原料的硬质合金，并实现工具的不均匀磨损的减少，从而有助于延长工具的使用寿命。解决方案：硬质合金通过碳化钨（WC）颗粒与主要由钴（Co）组成的粘结相结合而形成，WC颗粒的平均晶粒尺寸为0.1-0.5μm，结合相含有5〜12质量％的Co。结合相的平均厚度为0.14μm以下。各自具有0.5μm以上的厚度的接合相的比例为整个接合相的0.15％以下。在硬质合金中，粘结相（图1（I）中的黑色部分））薄微均匀地存在于微WC颗粒（相同图中的灰色部分）之间，并且不会微观地聚集而不是存在不均衡。可以抑制不均匀磨损，并且当具有这样的微结构的硬质合金用于微钻时，可以在长时间内执行位置精度优异的工作。版权所有（C）2013，JPO＆INPIT

7. 发明专利

JP2012077353A Cemented carbide 有权
标题翻译：硬质合金
公开(公告)号：JP2012077353A
公开(公告)日：2012-04-19
申请号：JP2010223460
申请日：2010-10-01
申请人： Sumitomo Electric Hardmetal Corp , 住友電工ハードメタル株式会社
发明人： YAMAMOTO EIJI , UCHINO KATSUYA
IPC分类号： C22C29/08
摘要： PROBLEM TO BE SOLVED: To provide a cemented carbide having high hardness, high toughness, high strength and corrosion resistance, under good balance.SOLUTION: In the cemented carbide, a hard phase mainly comprises WC particles and a binder phase mainly comprises NixWyCz. The cemented carbide contains 0.2-0.9 mass% Ni and 0.2-1.5 mass% Cr, and the balance is composed of a binary compound of W and C with inevitable impurities. In the binary compound of W and C, the average particle size of the WC is 0.15-0.7 μm and the standard deviation σ of the particle size of the WC is ≤0.2. The toughness is secured and the corrosion resistance is raised by containing Ni in the range. Further, a sintering property is also raised and the sintering temperature can be made to be low temperature, and moreover, by containing Cr, the growth of WC can be effectively restrained, to obtain the cemented carbide in which WC having fine and uniform particle size exists. By the existence of Cr as the metallic composition, the lowering of the strength caused by the existence of Cr carbide can be restrained.
摘要翻译：要解决的问题：在良好的平衡下提供具有高硬度，高韧性，高强度和耐腐蚀性的硬质合金。
解决方案：在硬质合金中，硬质相主要包括WC颗粒，粘结相主要包括NixWyCz。硬质合金含有0.2-0.9质量％的Ni和0.2-1.5质量％的Cr，余量由W和C的二元化合物与不可避免的杂质组成。在W和C的二元化合物中，WC的平均粒径为0.15-0.7μm，WC的粒径的标准偏差σ为≤0.2。通过将Ni包含在该范围内，确保韧性并提高耐腐蚀性。此外，还提高了烧结性，并且可以将烧结温度设定为低温，此外，通过含有Cr，可以有效地抑制WC的生长，得到其中具有微细且均匀粒径的WC的硬质合金存在。通过存在Cr作为金属组成，可以抑制由Cr碳化物的存在引起的强度的降低。版权所有（C）2012，JPO＆INPIT

8. 发明专利

JP2011167776A Drill and manufacturing method for the same 有权
标题翻译：钻孔及其制造方法
公开(公告)号：JP2011167776A
公开(公告)日：2011-09-01
申请号：JP2010031681
申请日：2010-02-16
申请人： Sumitomo Electric Hardmetal Corp , 住友電工ハードメタル株式会社
发明人： HAYAKAWA TOMOKO , YAMAMOTO EIJI , KUROKAWA KAZUO , UCHINO KATSUYA
IPC分类号： B23B51/00
摘要： PROBLEM TO BE SOLVED: To provide a drill with a small diameter used for drilling a print substrate or the like and excellent in wear resistance, and also to provide a manufacturing method for the same.
SOLUTION: The drill is made of cemented carbide mainly composed of WC and Co. The drill has a blade diameter D of ≤0.5 mm and includes a Co-reducting layer at least on the surface side of the blade groove of the drill and an inner circumferential part on the inner side. When Co content at the inner circumferential part is Co(i) (mass%) and Co content in the Co-reducing layer is Co(o) (mass%), the ratio of both Co(o)/Co(i) is ≥50% and
摘要翻译：要解决的问题：为了提供用于钻打印基板等的小直径的钻头和耐磨性优良，并且还提供了用于其的制造方法。解决方案：钻头由主要由WC和Co组成的硬质合金制成。钻头的刀片直径D≤0.5mm，并且至少在钻头的刀槽的表面侧上包括Co还原层和内侧的内周部。当内周部的Co含量为Co（i）（质量％），Co还原层中的Co含量为Co（o）（质量％）时，Co（o）/ Co（i） ≥50％和<80％，并且Co还原层的厚度<10μm。版权所有（C）2011，JPO＆INPIT

9. 发明专利

JP2010248561A Cemented carbide 有权
标题翻译：硬质合金
公开(公告)号：JP2010248561A
公开(公告)日：2010-11-04
申请号：JP2009098422
申请日：2009-04-14
申请人： Sumitomo Electric Hardmetal Corp , 住友電工ハードメタル株式会社
发明人： UCHINO KATSUYA , YAMAMOTO EIJI
IPC分类号： C22C29/08 , C22C1/05
摘要： PROBLEM TO BE SOLVED: To provide cemented carbide which has high hardness, excellent strength and excellent toughness. SOLUTION: The cemented carbide has a hard phase that is mainly composed of WC particles and a binder phase that is mainly composed of WC-Co, and contains 0.2 to 0.9 mass% of Co and 0.2 to 1.5 mass% of Cr with the balance made up of a binary compound of W and C and impurities. In the alloy, Co is present mainly as a metal component. The average particle size of WC particles is 0.2-0.7 μm, and the standard deviation σ of the particle size of WC particles satisfies σ≤0.2. By containing Co in an amount within the above-specified range, the toughness is improved. In addition, by containing Co in an amount within the above specified range, sintering property is improved, and the sintering temperature is made lower. By containing Cr, growth of WC particles is effectively suppressed to obtain a cemented carbide in which fine WC particles having a uniform particle size are present. Since Cr is present as a metal component, decrease in the strength due to the presence of Cr carbide can be suppressed. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供硬度高，强度优异，韧性优异的硬质合金。解决方案：硬质合金具有主要由WC颗粒和主要由WC-Co组成的粘结相组成的硬质相，并且含有0.2〜0.9质量％的Co和0.2〜1.5质量％的Cr，余量由W和C的二元化合物和杂质组成。在合金中，Co主要作为金属成分存在。 WC粒子的平均粒径为0.2〜0.7μm，WC粒子的粒径的标准偏差σ满足σ≤0.2。通过将Co含量设定在上述范围内，韧性提高。此外，通过将Co含量设定在上述规定范围内，烧结性提高，烧结温度降低。通过含有Cr，有效地抑制WC颗粒的生长，得到其中存在具有均匀粒径的细WC颗粒的硬质合金。由于Cr以金属成分的形式存在，所以可以抑制由于Cr碳化物的存在导致的强度的降低。版权所有（C）2011，JPO＆INPIT

10. 发明专利

JP2010248560A Cemented carbide 有权
标题翻译：硬质合金
公开(公告)号：JP2010248560A
公开(公告)日：2010-11-04
申请号：JP2009098421
申请日：2009-04-14
申请人： Sumitomo Electric Hardmetal Corp , 住友電工ハードメタル株式会社
发明人： UCHINO KATSUYA , YAMAMOTO EIJI
IPC分类号： C22C29/08 , C22C1/05
CPC分类号： C22C29/08 , C22C29/005
摘要： PROBLEM TO BE SOLVED: To provide cemented carbide which has high hardness, and is excellent in strength and toughness as well.
SOLUTION: The cemented carbide has a hard phase that is mainly composed of WC particles and a binder phase that is mainly composed of CoxWyCz, and contains 0.2 to 0.9 mass% of Co and 0.2 to 1.5 mass% of Cr, and the balance a binary compound of W and C with impurities. The average particle size of WC particles is 0.2-0.7 μm, and the standard deviation σ of the particle size of WC particles satisfies σ≤0.25. By containing Co in an amount within the above-specified range, the toughness is improved. In addition, by containing Co in an amount within the above specified range, sintering property is improved, and the sintering temperature is made lower. By containing Cr, growth of WC particles is effectively suppressed to obtain a cemented carbide in which fine WC particles having a uniform particle size are present. Since Cr is present as a metal component, decrease in the strength due to the presence of Cr carbide is suppressed.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供硬度高，强度和韧性优异的硬质合金。解决方案：硬质合金具有主要由WC颗粒和主要由CoxWyCz组成的粘结相组成的硬质相，并且含有0.2〜0.9质量％的Co和0.2〜1.5质量％的Cr，平衡W和C的二元化合物与杂质。 WC粒子的平均粒径为0.2〜0.7μm，WC粒子的粒径的标准偏差σ满足σ≤0.25。通过将Co含量设定在上述范围内，韧性提高。此外，通过将Co含量设定在上述规定范围内，烧结性提高，烧结温度降低。通过含有Cr，有效地抑制WC颗粒的生长，得到其中存在具有均匀粒径的细WC颗粒的硬质合金。由于Cr以金属成分的形式存在，所以抑制了由于碳化铬的存在导致的强度的降低。版权所有（C）2011，JPO＆INPIT

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