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1. 发明专利

JPH10298696A TITANIUM-CARBONITRIDE-BASE ALLOY 失效
公开(公告)号：JPH10298696A
公开(公告)日：1998-11-10
申请号：JP10730297
申请日：1997-04-24
申请人： SUMITOMO ELECTRIC INDUSTRIES , HOKKAIDO SUMIDEN SEIMITSU KK
发明人： ISOBE KAZUTAKA , KITAGAWA NOBUYUKI , YAMAZAKI ISAO
IPC分类号： C22C29/04
摘要： PROBLEM TO BE SOLVED: To obtain a titanium-carbonitride base alloy for a cutting tool made of cermet having long service life by regulating respective areas of black core parts in hard-phase grains to specific values and regulating the proportion between the grain having larger area of black core part and the grain having smaller area of black core part to values in a specific range. SOLUTION: The cross section of a titanium-carbonitride-base alloy is observed under a scanning electron microscope. Black core parts 1, being enriched in Ti and showing black, are located in respective core parts of hard-phase grains A, B of the alloy, respectively, and a gray peripheral structure 2 is located in the peripheral part of each black core part 1. When a grain, in which the area of the black core part 1 comprises >=30% of the area of the grain as a whole, is called grain A, and a grain, in which the area of the black core part 1 comprises

2. 发明专利

JPH10298697A TITANIUM-CARBONITRIDE-BASE ALLOY 失效
公开(公告)号：JPH10298697A
公开(公告)日：1998-11-10
申请号：JP10730397
申请日：1997-04-24
申请人： SUMITOMO ELECTRIC INDUSTRIES , HOKKAIDO SUMIDEN SEIMITSU KK
发明人： ISOBE KAZUTAKA , KITAGAWA NOBUYUKI , YAMAZAKI ISAO
IPC分类号： C22C29/04
摘要： PROBLEM TO BE SOLVED: To obtain a titanium-carbonitride-base alloy for a cutting tool made of cermet having long service life by observing a titanium-carbonitride-base alloy under a scanning electron microscope and regulating respective areas of black core parts in hard-phase grains so that they distribute in a manner to form specific two peaks. SOLUTION: The cross section of a titanium-carbonitride-base alloy is observed under a scanning electron microscope. Black core parts, being enriched in Ti and showing black, are located in respective core parts of hard-phase grains in the alloy, and a gray peripheral structure is located in the peripheral part of each black core part. The distribution of the areas of the black core parts is regulated so that it has two peaks: a first peak lies where the areas of the black core parts ranges from 0.1 to 0.7 μm ; a second peak lies where the areas of the black core parts ranges from 0.8 to 2.5 μm . The grains at the first peak are increased in respective areas of the peripheral structures and contribute to breakage resistance. The grains at the second peak are increased in the areas of the black core parts and accordingly contribute to wear resistance. It is preferable to regulate the hard phase to 80-95 wt.%.

3. 发明专利

JPH10298695A TITANIUM-CARBONITRIDE-BASE ALLOY 失效
公开(公告)号：JPH10298695A
公开(公告)日：1998-11-10
申请号：JP10730197
申请日：1997-04-24
申请人： SUMITOMO ELECTRIC INDUSTRIES , HOKKAIDO SUMIDEN SEIMITSU KK
发明人： ISOBE KAZUTAKA , KITAGAWA NOBUYUKI , YAMAZAKI ISAO
IPC分类号： C22C29/04
摘要： PROBLEM TO BE SOLVED: To obtain a titaniumm-carbonitride base alloy for a cutting tool made of cermet having long service life by regulating respective areas of black core parts in hard-phase grains to specific values and regulating the proportion between the grain having larger area of black core part and the grain having smaller area of black core part to values in a specific range. SOLUTION: The cross section of a titanium-carbonitride-base alloy is observed under a scanning electron microscope. Black core parts 1, being enriched in Ti and showing black, are located in respective core parts of hard-phase grains A, B of the alloy, respectively, and a gray peripheral structure 2 is located in the peripheral part of each black core part 1. When a grain, in which the area of the black core part 1 comprises >=30% of the area of the grain as a whole, is called grain A, and a grain, in which the area of the black core part 1 comprises and 0.1-0.7 μm , respectively. It is preferable to regulate the hard phase, consisting of the grains A and the grains B, to 80-95 wt.%. Further, respective areas of the grains A and the grains B are in the ratio satisfying 0.3

4. 发明专利

JPH10287946A TITANIUM CARBONITRIDE-BASE ALLOY 失效
公开(公告)号：JPH10287946A
公开(公告)日：1998-10-27
申请号：JP10021797
申请日：1997-04-17
申请人： SUMITOMO ELECTRIC INDUSTRIES , HOKKAIDO SUMIDEN SEIMITSU KK
发明人： YAMAZAKI ISAO , ISOBE KAZUTAKA , KITAGAWA NOBUYUKI
IPC分类号： C22C29/04
摘要： PROBLEM TO BE SOLVED: To provide a titanium carbonitride base alloy, improved in breakage resistance as a defect of titanium carbonitride-base alloy and excellent in wear resistance. SOLUTION: This titanium carbonitride-base alloy has a composition consisting of, by weight, 80 to 95% of hard phase composed of the carbide, nitride, or carbonitride of Ti and at least one metal selected from the group IVa, Va, and VIa metals of the periodic table, other than Ti, and the balance binding phase composed essentially of Co and Ni with inevitable impurities. In this case, when observation is made by the scanning electron micrographs, a grain of the hard phase in the alloy consists of a black core part which looks black in its core and a peripheral structure which looks gray in its peripheral part (a structure with core). Further, when a grain, in which the area of the black core part comprises >=30% of the area of the entire grain, is represented by grain A and also a grain, in which the area of the black core part comprises

5. 发明专利

JPH08199283A TITANIUM CARBONITRIDE-BASE ALLOY 失效
公开(公告)号：JPH08199283A
公开(公告)日：1996-08-06
申请号：JP31552394
申请日：1994-11-25
申请人： HOKKAIDO SUMIDEN SEIMITSU KK , SUMITOMO ELECTRIC INDUSTRIES
发明人： TAKAHASHI KUNIHIRO , YAMAGUCHI KAZUHIRO , KITAGAWA NOBUYUKI
IPC分类号： B23B27/14 , C22C29/04
摘要： PURPOSE: To improve the performance of a titanium carbonitride-base alloy at the time of use as a cutting tool for high-speed cutting and high-feeding cutting by specifying a hard titanium carbonitride-base alloy, to which specific metals are added, and the grain sizes and contents of solid-solution grains, respectively. CONSTITUTION: This alloy consists of 80-95wt.% of hard phase consisting of the carbide, nitride, carbonitride of Ti and at least one metal, other than Ti, selected from the group IVa, Va, and VIa metals of the periodic table and the balance binding phase composed essentially of iron group metal with inevitable impurities. Further, when this alloy is observed by means of a scanning electron microscopic structure photograph, the grains of the hard phase in the alloy are essentially constituted of grain A whose core part has a black color enriched in Ti and grain B whose core part has a white color deficient in Ti, and the average grain size of the grains A and the average grain size of the grains B are regulated to 0.7-1.5μm and 0.1-0.7μm, respectively. Further, it is preferable to regulate the area ratio of the grains A comprising in the hard phase to 60-90%.

6. 发明专利

JP2009035810A Cemented carbide 审中-公开
标题翻译：硬质合金
公开(公告)号：JP2009035810A
公开(公告)日：2009-02-19
申请号：JP2008123926
申请日：2008-05-09
申请人： Hokkaido Sumiden Seimitsu Kk , Sumitomo Electric Hardmetal Corp , 住友電工ハードメタル株式会社 , 北海道住電精密株式会社
发明人： KOYOSHI YUTA , YAMAMOTO EIJI , KUROKAWA KAZUO , UCHINO KATSUYA , KITAGAWA NOBUYUKI , KAWASHIMA MOTOYOSHI , MAKIHARA TOORU , KANAYAMA TATSUYA , MINATO YOSHIHIRO
IPC分类号： C22C29/08 , B23B51/00 , C22C1/05
摘要： PROBLEM TO BE SOLVED: To provide a cemented carbide suitable for tool raw materials and capable of contributing to the reduction of uneven wear and the extension of the life of tools.
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 12 mass% or less of Co, excluding 0 mass% of Co. The average thickness of the bonding phase is 0.14 μm or smaller and 3σ
t is 0.2 or less when dispersion of the thicknesses is expressed by 3σ
t by using standard deviation σ
t of the thickness. In the cemented carbide of the invention, 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.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供适合于工具原料的硬质合金，并能够有助于减少不均匀的磨损和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12质量％以下的Co，不包括Co的0质量％。粘合相的平均厚度为0.14μm以下，3σ t 为0.2以下， 3σ t ，使用厚度的标准偏差σ t 。在本发明的硬质合金中，微观WC颗粒（相同图中的灰色部分）薄均匀地存在粘结相（图1（I）中的黑色部分）），并且不会微观聚集不平均不存在。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）2009，JPO＆INPIT

7. 发明专利

JP2000345206A METHOD FOR HEAT TREATING CEMENTED CARBIDE 失效
公开(公告)号：JP2000345206A
公开(公告)日：2000-12-12
申请号：JP16275699
申请日：1999-06-09
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： KITAGAWA NOBUYUKI , FUKUSHIMA KAZUHIKO
IPC分类号： C22C1/05 , B22F3/10
摘要： PROBLEM TO BE SOLVED: To provide a method for heat treating a cemented carbide excellent in wear resistance and deflective strength. SOLUTION: A WC-Co cemented carbide or a cemented carbide in which at least a part of WC is substituted with the carbide of transition metals such as TiC, TaC, NbC and HfC or the double carbide thereof (incudig WC) and the average free path of the bonding phase is >=0.3 μ is cooled from the temp. within the range of 1,000 to 1,500 deg.C to =30 deg.C/min in a reducing or inert atmosphere or in vacuum.

8. 发明专利

JPH091415A SURFACE COATING END MILL 失效
公开(公告)号：JPH091415A
公开(公告)日：1997-01-07
申请号：JP15193495
申请日：1995-06-19
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： SHIBATA AKIHIKO , NAKADO MASUO , KITAGAWA NOBUYUKI , SETOYAMA MAKOTO
IPC分类号： B23C5/16 , C22C29/00 , C23C14/06 , C23C16/30
摘要： PURPOSE: To obtain a surface coating end mill having high abrasion resistance, by making the hardness of the hard layer of an outer peripheral blade harder than that of the hard layer of a bottom blade, or making the hardness of the hard layer of the bottom blade harder than that of the outer peripheral blade. CONSTITUTION: When a coating layer 2 is formed by many layers on the surfaces of at least the bottom and outer peripheral blades of a surface coating end mill, the abrasion resistance of the coating layer is realized by using the carbide, nitride, or carbonitride of a metallic element composed of periodic tables 4a, 5a, 6a, and A1 as layers 4a-4i and 5a-5i for constituting plural periodic layers 3a-3i. The surfaces of the bottom and outer peripheral blades of the end mill are concurrently coated by the same coat material, and the hardness of the coating layer on the bottom blade surface is made harder by desired quantity than that of the outer peripheral blade surface. Consequently, the balance of the hardness and toughness of the coating layers on the respective surfaces can be optimized to end mill use.

9. 发明专利

JPH08229719A TOUGH CERMET DRILL 失效
公开(公告)号：JPH08229719A
公开(公告)日：1996-09-10
申请号：JP3346095
申请日：1995-02-22
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： KAMISHIRO MASAAKI , TAKAHASHI YOSHIHIRO , KITAGAWA NOBUYUKI
IPC分类号： B23B51/00 , B23B51/06 , C22C29/02 , C22C29/16
摘要： PURPOSE: To provide a cermet drill which has improved durability for providing improved finished surface accuracy by forming it out of cermet having a high fracture toughness value. CONSTITUTION: Cermet contains 80-95weight% hard phase which has Ti as a principal component and consisting of carbide, nitride, carbonnitride of periodic table 4a, 5a, 6a group metal and the remainder consists of bonding phase which has iron group metal as its principal component and unavoidable impurities. A solid drill or a tip solid drill with an oil hole is made of the cermet of which hard phase satisfies such both conditions that (Ti, M) 1 (CX, NY) Z M: at least one kind of metal selected from 4a, 5a, 6a group metal, x=(1-y)} and 0.2>=y>=0.6, 0.75>=Z>=0.95 in the above formula showing proportion of contained elements, so that a drill of even small diameter is efficiently used and surface roughness of hole surface is improved and reaming work is not needed.

10. 发明专利

JPH08176720A NITROGEN-CONTAINING SINTERED HARD ALLOY 失效
公开(公告)号：JPH08176720A
公开(公告)日：1996-07-09
申请号：JP32460394
申请日：1994-12-27
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： ISOBE KAZUTAKA , KITAGAWA NOBUYUKI , NAKADO MASUO
IPC分类号： B23B27/14 , B23P15/28 , C22C1/05 , C22C29/00 , C22C29/02 , C22C29/04 , C22C29/10
摘要： PURPOSE: To provide a nitrogen-containing sintered hard alloy for cutting tools usable with high reliability without applying a surface coating thereon even in working under conditions under which the alloy is subjected to severe thermal impact and under which only the costly coated and sintered hard alloys are usable. CONSTITUTION: This nitrogen-containing sintered hard alloy consists of 75 to 95wt.% hard phase consisting of the carbide, nitride and carbonitride of Ti and transition metals selected from group 4a, 5a, 6a of Periodic Table or their multi component carbonitride and 5 to 25wt.% bond phase including Ni, Co, etc. Two kinds of peaks of B1 structure are detected in X-ray diffraction measurement with this alloy. IH/IN, when the intensity of the peak of the lower intensity detected on the high angle side of the diffraction angle in X-ray diffraction measurement is defined as IS, the intensity of the peak of the higher intensity detected on the low angle side of the diffraction angle as IL and the peak intensity ratio expressed by IS/IL in the surface part of the alloy as IN and the peak intensity ratio of IS/IL within >=1mm of the alloy as IN, is 0.5 to 3.0.

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