公开(公告)号：US06544352B2

公开(公告)日：2003-04-08

申请号：US09870827

申请日：2001-06-01

申请人： Hiroyuki Mitani ,  Takehiro Tsuchida ,  Yuichi Seki ,  Akihiko Kagawa ,  Tetsuya Sawayama ,  Yoshikazu Seki ,  Masaaki Sato

发明人： Hiroyuki Mitani ,  Takehiro Tsuchida ,  Yuichi Seki ,  Akihiko Kagawa ,  Tetsuya Sawayama ,  Yoshikazu Seki ,  Masaaki Sato

IPC分类号： H01F124

CPC分类号： H01F1/24 ,  H01F41/0246

摘要： Disclosed is a method for the compaction of a soft magnetic powder capable of manufacturing a green compact which has attained high density and high strength, is excellent in mechanical properties and magnetic properties, and does not cause a reduction in electrical resistance. Soft magnetic powder particles individually surface-coated with an insulating vitreous layer containing P, Mg, B, and Fe as essential components are used, and a lubricant is applied to the inner wall surface of a compaction die. The soft magnetic powder is subjected to compaction at from not less than room temperature to less than 50° C. without mixing the lubricant with the soft magnetic powder, followed by annealing at from 50 to 300° C.

摘要翻译： 公开了一种能够制造具有高密度和高强度的生坯的软磁性粉末的压实方法，机械性能和磁特性优异，并且不会导致电阻降低。 使用以P，Mg，B，Fe作为必要成分单独表面涂覆有绝缘玻璃质层的软磁性粉末颗粒，并将润滑剂施加到压实模具的内壁表面。 将软磁性粉末在不低于室温至低于50℃下进行压实，而不将润滑剂与软磁性粉末混合，然后在50至300℃退火。

公开(公告)号：US06344169B2

公开(公告)日：2002-02-05

申请号：US09433071

申请日：1999-11-03

申请人： Takehiro Tsuchida ,  Hiroshi Yaguchi ,  Tetsuya Sawayama ,  Masaaki Sato ,  Yoshikazu Seki ,  Nobuaki Akagi

发明人： Takehiro Tsuchida ,  Hiroshi Yaguchi ,  Tetsuya Sawayama ,  Masaaki Sato ,  Yoshikazu Seki ,  Nobuaki Akagi

IPC分类号： B22F312

CPC分类号： H01F1/24 ,  B22F1/02 ,  B22F3/14 ,  B22F2003/023 ,  B22F2003/026 ,  B22F2003/145 ,  B22F2998/00 ,  B22F2999/00 ,  H01F41/0246 ,  B22F1/0059 ,  B22F3/02 ,  B22F2202/01

摘要： A method for compacting powders for powder metallurgy comprises packing powders for powder metallurgy formulated with a lubricant in a compacting die applied with a lubricant on inner wall surfaces thereof, and subjecting the powders to warm or hot compaction. The powders contain the lubricant in an amount up to 0.2 wt %, non-inclusive of 0%, based on the total of the powders and the lubricant.

摘要翻译： 压粉粉末冶金粉末的方法包括：将粉末冶金用粉末冶金制成的粉末冶金粉末在其内壁表面上施加润滑剂的压实模具中填充润滑剂，并对粉末进行热压或热压实。 基于粉末和润滑剂的总和，粉末含有高达0.2重量％，不包括0％的量的润滑剂。

公开(公告)号：US20100116088A1

公开(公告)日：2010-05-13

申请号：US12573275

申请日：2009-10-05

申请人： Masaaki SATO ,  Satoshi Furuta ,  Takahiro Kudo ,  Takehiro Tsuchida

发明人： Masaaki SATO ,  Satoshi Furuta ,  Takahiro Kudo ,  Takehiro Tsuchida

IPC分类号： B22F1/00 ,  C22C38/00

CPC分类号： C22C38/04 ,  B22F2003/023 ,  B22F2003/026 ,  C22C1/1084 ,  C22C33/0207 ,  C22C33/0264

摘要： A high-strength composition iron powder is prepared by mixing an iron base powder with 0.5 to 3.0 mass % of an Fe—Mn powder having a particle diameter of 45 μm or less and a Mn content in the range of 60 to 90 mass %, 1.0 to 3.0 mass % of a Cu powder, 0.3 to 1.0 mass % of a graphite powder, and 0.4 to 1.2 mass % of a powder lubricant for die-forming while adjusting the ratio of the amount of Mn contained in the Fe—Mn powder to the amount of the Cu powder in the range of 0.1 to 1. The high-strength composition iron powder is press-formed and sintered at a temperature equal to or higher than the melting point of Cu to produce a high-strength sintered part having a tensile strength of 580 MPa or higher without using expensive alloying elements such as Ni and Mo.

摘要翻译： 通过将铁基粉末与0.5〜3.0质量％的粒径为45μm以下的Mn-Mn粉末和Mn含量在60〜90质量％的范围内混合来制备高强度组合物铁粉末， 1.0〜3.0质量％的Cu粉末，0.3〜1.0质量％的石墨粉末和0.4〜1.2质量％的用于模具成形的粉末润滑剂，同时调节Fe-Mn粉末中含有的Mn的比例 与Cu粉末的量在0.1〜1的范围内。高强度组合物铁粉被压制成型，在Cu的熔点以上的温度下进行烧结，制成具有 拉伸强度为580MPa以上，而不使用昂贵的合金元素如Ni和Mo。

公开(公告)号：US08287615B2

公开(公告)日：2012-10-16

申请号：US12573275

申请日：2009-10-05

申请人： Masaaki Sato ,  Satoshi Furuta ,  Takahiro Kudo ,  Takehiro Tsuchida

发明人： Masaaki Sato ,  Satoshi Furuta ,  Takahiro Kudo ,  Takehiro Tsuchida

IPC分类号： B22F1/00 ,  C22C33/02

CPC分类号： C22C38/04 ,  B22F2003/023 ,  B22F2003/026 ,  C22C1/1084 ,  C22C33/0207 ,  C22C33/0264

摘要： A high-strength composition iron powder is prepared by mixing an iron base powder with 0.5 to 3.0 mass % of an Fe—Mn powder having a particle diameter of 45 μm or less and a Mn content in the range of 60 to 90 mass %, 1.0 to 3.0 mass % of a Cu powder, 0.3 to 1.0 mass % of a graphite powder, and 0.4 to 1.2 mass % of a powder lubricant for die-forming while adjusting the ratio of the amount of Mn contained in the Fe—Mn powder to the amount of the Cu powder in the range of 0.1 to 1. The high-strength composition iron powder is press-formed and sintered at a temperature equal to or higher than the melting point of Cu to produce a high-strength sintered part having a tensile strength of 580 MPa or higher without using expensive alloying elements such as Ni and Mo.

摘要翻译： 通过将铁基粉末与0.5〜3.0质量％的粒径为45μm以下的Mn-Mn粉末和Mn含量在60〜90质量％的范围内混合来制备高强度组合物铁粉末， 1.0〜3.0质量％的Cu粉末，0.3〜1.0质量％的石墨粉末和0.4〜1.2质量％的用于模具成形的粉末润滑剂，同时调节Fe-Mn粉末中含有的Mn的比例 与Cu粉末的量在0.1〜1的范围内。高强度组合物铁粉被压制成型，在Cu的熔点以上的温度下进行烧结，制成具有 拉伸强度为580MPa以上，而不使用昂贵的合金元素如Ni和Mo。

公开(公告)号：US06579385B2

公开(公告)日：2003-06-17

申请号：US09931093

申请日：2001-08-17

申请人： Hiroshi Yaguchi ,  Yosuke Shindo ,  Takehiro Tsuchida ,  Takahiro Kudou ,  Masato Kaiso ,  Masami Somekawa

发明人： Hiroshi Yaguchi ,  Yosuke Shindo ,  Takehiro Tsuchida ,  Takahiro Kudou ,  Masato Kaiso ,  Masami Somekawa

IPC分类号： C22C3814

CPC分类号： C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/60

摘要： Free machining steel for use in machine structures capable of stably and reliably providing excellent machinability (chip disposability and tool life) and mechanical characteristics (transverse direction toughness) comparable, in a Pb free state, with existent Pb-added steels the machining steel being manufactured so as to contain 0.0005 to 0.02 mass % of Mg and provide a distribution index F1 for the sulfide particles defined by the following equation (1) of 0.4 to 0.65 or a distribution index for the sulfide particles defined by the following equation (2) of 1 to 2.5: F1=X1/(A/n)½  (1), or F2=&sgr;F/X2  (2) as described in the specification.

摘要翻译： 用于能够稳定可靠地提供优良机械加工性（切屑可处理性和刀具寿命）和机械特性（横向韧性）的机器结构的自由加工钢在无铅状态下与现有的Pb添加钢相当，制造的加工钢 含有0.0005〜0.02质量％的Mg，并且由下式（1）定义的硫化物粒子的分布指数F1为0.4〜0.65，或者由下述式（2）定义的硫化物粒子的分布指数为 1至2.5：如说明书中所述。

公开(公告)号：US08192565B2

公开(公告)日：2012-06-05

申请号：US12665228

申请日：2008-06-23

申请人： Tomokazu Masuda ,  Takehiro Tsuchida ,  Masaki Shimamoto ,  Motohiro Horiguchi ,  Shinsuke Masuda ,  Koichi Akazawa ,  Shogo Murakami ,  Mutsuhisa Nagahama ,  Hiroshi Yaguchi ,  Koichi Sakamoto

发明人： Tomokazu Masuda ,  Takehiro Tsuchida ,  Masaki Shimamoto ,  Motohiro Horiguchi ,  Shinsuke Masuda ,  Koichi Akazawa ,  Shogo Murakami ,  Mutsuhisa Nagahama ,  Hiroshi Yaguchi ,  Koichi Sakamoto

IPC分类号： C21D6/00

CPC分类号： C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/18 ,  C22C38/22

摘要： The present invention provides a steel for machine and structural use which is capable of maintaining mechanical characteristics such as strength by reducing a S content as well as of exhibiting excellent machinability (particularly tool life) in intermittent cutting (such as hobbing) with the high speed tool, and a method useful for producing the steel for machine and structural use. The steel for machine and structural use according to the invention secures 0.002% or more of solute N in the steel and has a chemical composition which is appropriately adjusted and satisfies a relationship of the following expression (1): (0.1×[Cr]+[Al])/[O]≧150 . . . (1), in which [Cr], [Al], and [0] represent a Cr content (mass %), an Al content (mass %), and an O content (mass %), respectively.

摘要翻译： 本发明提供一种用于机械和结构用途的钢，其能够通过降低S含量以及在间歇切割（例如滚轧）中以高速度显示优异的机械加工性（特别是工具寿命）来保持机械特性，例如强度 工具和用于生产机器和结构用钢的方法。 根据本发明的机械和结构用钢，确保了钢中的溶质N的0.002％以上，并且具有适当调整的化学组成，并满足下述式（1）的关系：（0.1×[Cr] + [Al]）/ [O]≥150。 。 。 （1）中，[Cr]，[Al]和[0]分别表示Cr含量（质量％），Al含量（质量％）和O含量（质量％）。

公开(公告)号：US20120063945A1

公开(公告)日：2012-03-15

申请号：US13321902

申请日：2010-06-01

申请人： Takehiro Tsuchida ,  Tomokazu Masuda ,  Masaki Shimamoto ,  Mutsuhisa Nagahama

发明人： Takehiro Tsuchida ,  Tomokazu Masuda ,  Masaki Shimamoto ,  Mutsuhisa Nagahama

IPC分类号： C22C38/06 ,  C22C38/14 ,  C22C38/08 ,  C22C38/04 ,  C22C38/16 ,  C22C38/28

CPC分类号： C22C38/02 ,  C21D6/00 ,  C21D6/002 ,  C21D9/30 ,  C21D9/32 ,  C21D2261/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C22C38/20 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/50 ,  C22C38/54

摘要： Provided is a steel for machine structural use which has excellent machinability (particularly, with respect to tool life) for both intermittent cutting with a high-speed steel tool and continuous cutting with a cemented carbide tool while maintaining strength properties required of the steel for machine structural use. Specifically, the steel for machine structural use contains C: 0.05-0.9 mass %, Si: 0.03-2 mass %, Mn: 0.2-1.8 mass %, P: 0.03 mass % or less, S: 0.03 mass % or less, Al: 0.1-0.5 mass %, N: 0.002-0.017 mass %, and O: 0.003 mass % or less, and contains one or more selected from a group consisting of Ti: 0.05 mass % or less (excluding 0 mass %) and B: 0.008 mass % or less (excluding 0 mass %), with the remainder being iron and unavoidable impurities, and satisfies all of the following inequalities (1)-(3) below:(1): [N]−0.3[Ti]−1.4[B]

摘要翻译： 本发明提供一种机械结构用钢，具有优异的机械加工性（特别是相对于刀具寿命），用于高速钢工具的间歇切削和用硬质合金刀具的连续切削，同时保持机器钢所需的强度性能 结构用途。 具体而言，机械结构用钢的含有C：0.05〜0.9质量％，Si：0.03〜2质量％，Mn：0.2〜1.8质量％，P：0.03质量％以下，S：0.03质量％以下，Al ：0.1-0.5质量％，N：0.002-0.017质量％，O：0.003质量％以下，含有选自Ti：0.05质量％以下（不含0质量％）和B ：0.008质量％以下（不包括0质量％），其余为铁和不可避免的杂质，满足以下所有以下不等式（1） - （3）：（1）：[N] -0.3 [Ti] -1.4 [B] <（0.0004 / [Al]） - 0.002; （2）：[Ti] - [N] /0.3 <0.005; 当[Ti] - [N] / [N] / [3]时，[Ti] - [N] /0.3 <0和[B] <0.003时，[B] - （[N] -0.3 [Ti] 0.3≧0。

公开(公告)号：US20100193090A1

公开(公告)日：2010-08-05

申请号：US12665228

申请日：2008-06-23

申请人： Tomokazu Masuda ,  Takehiro Tsuchida ,  Masaki Shimamoto ,  Motohiro Horiguchi ,  Shinsuke Masuda ,  Koichi Akazawa ,  Shogo Murakami ,  Mutsuhisa Nagahama ,  Hiroshi Yaguchi ,  Koichi Sakamoto

发明人： Tomokazu Masuda ,  Takehiro Tsuchida ,  Masaki Shimamoto ,  Motohiro Horiguchi ,  Shinsuke Masuda ,  Koichi Akazawa ,  Shogo Murakami ,  Mutsuhisa Nagahama ,  Hiroshi Yaguchi ,  Koichi Sakamoto

IPC分类号： C21D6/00 ,  C22C38/00 ,  C22C38/22 ,  C22C38/20

CPC分类号： C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/18 ,  C22C38/22

摘要： The present invention provides a steel for machine and structural use which is capable of maintaining mechanical characteristics such as strength by reducing a S content as well as of exhibiting excellent machinability (particularly tool life) in intermittent cutting (such as hobbing) with the high speed tool, and a method useful for producing the steel for machine and structural use. The steel for machine and structural use according to the invention secures 0.002% or more of solute N in the steel and has a chemical composition which is appropriately adjusted and satisfies a relationship of the following expression (1): (0.1×[Cr]+[Al])/[O]≧150 . . . (1), in which [Cr], [Al], and [0] represent a Cr content (mass %), an Al content (mass %), and an O content (mass %), respectively.

摘要翻译： 本发明提供一种用于机械和结构用途的钢，其能够通过降低S含量以及在间歇切割（例如滚轧）中以高速度显示优异的机械加工性（特别是工具寿命）来保持机械特性，例如强度 工具和用于生产机器和结构用钢的方法。 根据本发明的机械和结构用钢，确保了钢中的溶质N的0.002％以上，并且具有适当调整的化学组成，并满足下述式（1）的关系：（0.1×[Cr] + [Al]）/ [O]≥150。 。 。 （1）中，[Cr]，[Al]和[0]分别表示Cr含量（质量％），Al含量（质量％）和O含量（质量％）。

公开(公告)号：US5538926A

公开(公告)日：1996-07-23

申请号：US360086

申请日：1994-12-20

申请人： Takehiro Tsuchida ,  Tsuneo Tatsuno ,  Moriyoshi Kanamaru

发明人： Takehiro Tsuchida ,  Tsuneo Tatsuno ,  Moriyoshi Kanamaru

IPC分类号： B23B27/14 ,  B23P15/28 ,  C04B35/10 ,  C04B35/117 ,  C04B35/80 ,  C04B35/76

CPC分类号： C04B35/803 ,  C04B35/117

摘要： A mixed powder containing: 5-30 wt % of SiC whiskers; 3-30 wt % of a sintering auxiliary agent composed of one kind or more of oxides of Mg, Si, Ca, Ti, Zr, Cr, Ni, Y and rare earth elements; and an Al.sub.2 O.sub.3 powder as a base material; or further containing 0.5-40 wt % of one kind or more of compounds composed of one kind or more of transient elements in the groups IVa, Va, and VIa of the periodic table and one kind or more of C, N and B, are compacted and subjected to pressureless-sintering in a nitrogen containing inert gas atmosphere at a temperature between 1500.degree. and 1900.degree. C. With this method, the SiC whiskers containing Al.sub.2 O.sub.3 based ceramic material, which is densified and has a sufficient strength and toughness, can be formed in a complex shape and a large size.

摘要翻译： 含有5-30重量％的SiC晶须的混合粉末; 3-30重量％由Mg，Si，Ca，Ti，Zr，Cr，Ni，Y和稀土元素的一种或多种氧化物构成的烧结助剂; 和作为基材的Al 2 O 3粉末; 或进一步含有0.5-40重量％的一种或多种由元素周期表IVa，Va和VIa族中的一种或多种瞬态元素组成的化合物和C，N和B中的一种或多种。 压制并在含氮惰性气体气氛中在1500〜1900℃的温度下进行无压烧结。通过这种方法，含有Al2O3基陶瓷材料的SiC晶须被致密化并具有足够的强度和韧性，可以 形成复杂的形状和大尺寸。

公开(公告)号：US20120168035A1

公开(公告)日：2012-07-05

申请号：US13395696

申请日：2010-09-30

申请人： Takehiro Tsuchida ,  Tomokazu Masuda ,  Mutsuhisa Nagahama

发明人： Takehiro Tsuchida ,  Tomokazu Masuda ,  Mutsuhisa Nagahama

IPC分类号： C22C38/02 ,  C22C38/06 ,  C22C38/20 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/04 ,  C22C38/08

CPC分类号： C23C8/22 ,  C21D1/06 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0205 ,  C21D8/06 ,  C21D9/30 ,  C21D9/32 ,  C21D2211/001 ,  C21D2211/004 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C22C38/20 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/50 ,  C22C38/54 ,  C23C8/30 ,  C23C8/80

摘要： Disclosed is a steel for machine structural use including 0.05-0.8% of C, 0.03-2% of Si, 0.2-1.8% of Mn, 0.1-0.5% of Al, 0.0005-0.008% of B, and 0.002-0.015% of N, and including 0.03% of P or less (excluding 0%), 0.03% of S or less (excluding 0%), and 0.002% of 0 or less (excluding 0%), with the remainder comprising iron and unavoidable impurities. The ratio of BN/A1N precipitated in the steel is 0.020-0.2. Also disclosed is a case hardened steel component in which the ratio of BN/AlN deposited on the carburized or carbonitrided component surface is 0.01 or less and a manufacturing method for same. The steel for machine structural use exhibits excellent machinability in continuous cutting at high speeds using cemented carbide tools, and in interrupted cutting at low speeds using high-speed steel tools, as well as excellent impact performance, even after being subjected to a heat treatment such as quenching and tempering. Furthermore, the case hardened steel component exhibits excellent fatigue resistance, and particularly excellent pitting resistance.

摘要翻译： 公开了一种用于机械结构用途的钢，其包括0.05-0.8％的C，0.03-2％的Si，0.2-1.8％的Mn，0.1-0.5％的Al，0.0005-0.008％的B和0.002-0.015％的 N，并且包括0.03％P以下（不含0％），0.03％以下（不含0％），0.002％以下（0％以下）（不包括0％），其余为铁和不可避免的杂质。 钢中析出的BN / AlN比为0.020-0.2。 还公开了沉积在渗碳或碳氮共混组分表面上的BN / AlN的比例为0.01以下的表面硬化钢部件及其制造方法。 机械结构用钢在高速连续切削中使用硬质合金工具，在使用高速钢工具的低速断续切削以及优异的冲击性能方面表现出优异的机械加工性，即使在经受热处理之后 作为淬火和回火。 此外，表面硬化钢部件表现出优异的耐疲劳性，特别优异的耐点蚀性。