公开(公告)号：US6126711A

公开(公告)日：2000-10-03

申请号：US313007

申请日：1999-05-17

申请人： Jun Kusui ,  Kazuhiko Yokoe ,  Kazuo Fujii ,  Kyo Takahashi ,  Kosuke Doi ,  Hiroyuki Horimura ,  Hisao Hattori ,  Toshihiko Kaji ,  Yoshinobu Takeda ,  Koji Yamada

发明人： Jun Kusui ,  Kazuhiko Yokoe ,  Kazuo Fujii ,  Kyo Takahashi ,  Kosuke Doi ,  Hiroyuki Horimura ,  Hisao Hattori ,  Toshihiko Kaji ,  Yoshinobu Takeda ,  Koji Yamada

IPC分类号： B22F1/00 ,  C22C1/05 ,  C22C1/10 ,  C22C21/00 ,  C22C32/00

CPC分类号： C22C32/0036 ,  B22F2998/10

摘要： A raw material for powder metallurgy contains at least 0.5 vol % and at most 10 vol % of alumina powder of which the sieve fraction with a sieve opening of 30 .mu.m is at most 0.1 wt %, and a remaining part of aluminum alloy powder. The moisture content of the alumina powder is at most 0.15 wt. % with respect to the alumina powder. Agglomeration of particles is thereby minimized or avoided. Highly reliable raw material for powder metallurgy having superior fatigue strength, impact resistance and wear resistance can be obtained. A method of preparing such a mixed powder raw material involves air classifying the powder materials, dry ball mixing the materials, and then annealing the mixed powder.

摘要翻译： 粉末冶金用原料含有至少0.5体积％，最多10体积％的筛孔为30μm以下的筛分级别为0.1重量％以下的氧化铝粉末，剩余部分为铝合金粉末。 氧化铝粉末的含水量为0.15重量％以下。 相对于氧化铝粉末为％。 从而使颗粒的聚集最小化或避免。 可以获得具有优异的疲劳强度，耐冲击性和耐磨性的高度可靠的粉末冶金原料。 制备这种混合粉末原料的方法包括将粉末材料进行空气分类，将该材料进行干球混合，然后对混合粉末进行退火。

公开(公告)号：US5709758A

公开(公告)日：1998-01-20

申请号：US664787

申请日：1996-06-17

申请人： Kenji Okamoto ,  Hiroyuki Horimura ,  Masahiko Minemi ,  Yoshinobu Takeda ,  Yoshishige Takano ,  Toshihiko Kaji

发明人： Kenji Okamoto ,  Hiroyuki Horimura ,  Masahiko Minemi ,  Yoshinobu Takeda ,  Yoshishige Takano ,  Toshihiko Kaji

IPC分类号： B22F3/02 ,  B22F3/00 ,  B22F3/17 ,  C22C1/04 ,  C22C21/00 ,  C22C32/00

CPC分类号： B22F3/006 ,  B22F9/082 ,  C22C1/0416 ,  C22C21/00 ,  C22C32/0036

摘要： An aluminum alloy structural member is crystalline. In producing this aluminum alloy structural member, a procedure is employed which includes forming a green compact by use of aluminum alloy having an amorphous phase, and subjecting the green compact to a powder forging technique. An aluminum alloy powder exhibiting an exotherm E smaller than 20 J/g at the time of the crystallization of the amorphous phases is used. By setting the exotherm E in such a range, cracking of the green compact due to a degassing can be avoided, even if the green compact is rapidly heated in a temperature-rising or heating course.

摘要翻译： 铝合金结构件是结晶的。 在制造该铝合金结构件时，采用包括通过使用具有非晶相的铝合金形成生坯的方法，并对生坯进行粉末锻造技术的方法。 使用在非晶相结晶时显示小于20J / g的放热E的铝合金粉末。 通过将放热E设定在这样的范围内，即使生坯在升温或加热过程中被快速加热，也可以避免由于脱气引起的生坯的破裂。

公开(公告)号：US5372775A

公开(公告)日：1994-12-13

申请号：US930187

申请日：1992-08-17

申请人： Tetsuya Hayashi ,  Yoshinobu Takeda

发明人： Tetsuya Hayashi ,  Yoshinobu Takeda

IPC分类号： C22C1/10 ,  C22C32/00 ,  B22F3/12

CPC分类号： C22C32/00 ,  C22C1/1042

摘要： To prepare an aluminum matrix particle composite alloy, a molten metal, mainly composed of aluminum, containing ceramic particles is disintegrated by atomization, to prepare atomized powder. The atomized powder is mechanically ground/reflocculated with a ball mill or the like, to prepare mechanically ground/reflocculated powder containing ceramic particles of not more than 8 .mu.m in maximum diameter and not more than 3 .mu.m in mean particle diameter. The mechanically ground/reflocculated powder is then warm-formed/solidified. Alternatively, an aluminum alloy molten metal containing dispersed particles is disintegrated by atomization, and thereafter the powder containing the dispersed particles of not more than 20 .mu.m in mean particle diameter is warm-formed/solidified by powder forging. Thus, it is possible to obtain an aluminum matrix particle composite alloy in which extra-fine ceramic particles are homogeneously distributed without segregation.

摘要翻译： 为了制备铝基质颗粒复合合金，主要由铝构成的含有陶瓷颗粒的熔融金属通过雾化而分解，以制备雾化粉末。 雾化粉末用球磨机等进行机械研磨/再凝结，制备平均粒径为最大直径为8μm以下，平均粒径为3μm以下的陶瓷微粒的机械研磨/再结晶粉末。 然后将机械研磨/再凝结的粉末热成型/固化。 或者，通过雾化将含有分散粒子的铝合金熔融金属粉碎，然后通过粉末锻造将含有平均粒径不大于20μm的分散粒子的粉末温和形成/固化。 因此，可以获得其中超细陶瓷颗粒均匀分布而不分离的铝基质颗粒复合合金。

公开(公告)号：US5338168A

公开(公告)日：1994-08-16

申请号：US82930

申请日：1993-06-29

申请人： Katsuyoshi Kondoh ,  Yoshinobu Takeda

发明人： Katsuyoshi Kondoh ,  Yoshinobu Takeda

IPC分类号： C22C1/04 ,  C22C21/02 ,  C22C45/08 ,  F04C2/08 ,  F04C2/10 ,  F04C29/00

CPC分类号： C22C1/0416 ,  C22C21/02 ,  C22C45/08 ,  F04C2/082 ,  F04C2230/22

摘要： An oil pump comprises a casing of aluminum alloy and at least one rotor housed therein. The rotor is produced by powder metallurgical with a rapidly solidified aluminum alloy comprising, by weight, of 5 to 25% of Si, up to 15% of one or more alloy elements selected from the group consisting of 3 to 10% of Fe, 3 to 10% of Ni and 1 to 8% of Cr, and the balance of Al and inevitable impurities. The casing may be produced by powder metallurgy or ingot metallurgy with an aluminum alloy consisting essentially, by weight, of 5 to 25%, preferably 5 to 17%, of Si, 1 to 5% of Cu, 0.2 to 1.5% of Mg, 0.2 to 1% of Mn, and the balance of Al and inevitable impurities. The rotor and casing are so combined that the sum of the Si content of said rapidly solidified aluminum alloy for casing and that of said rapidly solidified aluminum alloy for rotor being equal to or more than 15 percent by weight.

摘要翻译： 油泵包括铝合金壳体和容纳在其中的至少一个转子。 转子通过粉末冶金制成，其中快速固化的铝合金包含重量比为5％至25％的Si，最多15％的一种或多种合金元素，选自3％至10％的Fe，3 至10％的Ni和1至8％的Cr，余量为Al和不可避免的杂质。 壳体可以通过粉末冶金或铸锭冶金制造，铝合金基本上由5至25％，优选5至17％的Si，1至5％的Cu，0.2至1.5％的Mg， 0.2〜1％的Mn，余量的Al和不可避免的杂质。 转子和壳体的组合使得用于壳体的所述快速固化的铝合金的Si含量与用于转子的所述快速凝固的铝合金的Si含量之和等于或大于15重量％。

公开(公告)号：US5242513A

公开(公告)日：1993-09-07

申请号：US773636

申请日：1991-11-27

申请人： Kojiro Kobayashi ,  Yoshinobu Takeda

发明人： Kojiro Kobayashi ,  Yoshinobu Takeda

IPC分类号： C22F1/04 ,  B22F1/00 ,  B22F3/00 ,  B22F9/00 ,  C22C1/04 ,  C22C45/08 ,  C22F1/00

CPC分类号： B22F3/007 ,  B22F9/004 ,  B22F9/008 ,  C22C1/0416 ,  C22C45/08

摘要： An aluminum-chromium based alloy which has a high strength, an excellent heat resistance, corrosion resistance, and a light weight contains 10 to 25 atomic percent of Cr and 0.1 to 5.0 atomic percent of Fe and/or Ni. The total content of Cr, and Fe and/or Ni is not more than 30 atomic percent The remainder substantially consists of aluminum. The aluminum-chromium based alloy partially or entirely exhibits and amorphous state by X-ray diffraction. This aluminum-chromium based alloy is obtained by first preparing a powder by a rapid solidification method, then converting the powder raw material to an amorphous powder by performing a mechanical grinding treatment thereon, and then hot working the amorphous powder.

摘要翻译： PCT No.PCT / JP91 / 00336 Sec。 371日期1991年11月27日 102（e）1991年11月27日PCT 1991年3月13日PCT PCT。 WO91 / 14013 PCT出版物 日本1991年9月19日。具有高强度，优异的耐热性，耐腐蚀性和轻质量的铝铬系合金含有10〜25原子％的Cr和0.1〜5.0原子％的Fe和/或 倪 Cr，Fe和/或Ni的总含量不超过30原子％余量基本上由铝构成。 铝 - 铬基合金通过X射线衍射部分或全部显示和非晶状态。 该铝 - 铬基合金是通过首先通过快速固化法制备粉末，然后通过对其进行机械研磨处理将粉末原料转化为无定形粉末，然后热加工无定形粉末而获得的。

公开(公告)号：US4882117A

公开(公告)日：1989-11-21

申请号：US212149

申请日：1988-06-28

申请人： Yoshinobu Takeda ,  Kunio Yamamoto

发明人： Yoshinobu Takeda ,  Kunio Yamamoto

IPC分类号： B29C45/57 ,  B29C45/00 ,  B29C45/76 ,  B29C45/77

CPC分类号： B29C45/77 ,  B29C45/00

摘要： An injection molding process in which an injection of a molten resin into a cavity is performed under such a condition that an internal resin pressure upon filling of the cavity with the molten resin is lower than a maximum internal resin pressure required upon pressure holding after the filling.

公开(公告)号：US4660114A

公开(公告)日：1987-04-21

申请号：US699396

申请日：1985-02-07

申请人： Akira Yamakawa ,  Yoshinobu Takeda ,  Eiji Kamijo

发明人： Akira Yamakawa ,  Yoshinobu Takeda ,  Eiji Kamijo

IPC分类号： C04B35/48 ,  G11B5/31 ,  H01F10/26 ,  H01F10/28 ,  G11B5/22 ,  G11B5/14

CPC分类号： G11B5/31

摘要： A novel thin film magnetic head is provided characterized by the use of a new substrate material excellent in mechanical property as well as machinability. This substrate is composed of a ceramic compact comprising 4 to 45% by volume of Component A, 55 to 96% by volume of Component B and at most 3% by volume of unavoidable impurities:Component A: at least one member selected from the group consisting of carbides, nitrides, carbonitrides, carboxides, oxynitrides and carboxynitrides of Group IVa, Va and VIa elements of Periodic Table and mixtures or solid solutions thereof.Component B: ZrO.sub.2 consisting of at least 70% by weight of tetragonal and/or cubic system and the balance of monoclinic system, in which at least one member selected from the group consisting of oxides of Group IIIa elements of Periodic Table, CaO and MgO, and mixtures thereof is dissolved to form a solid solution.

摘要翻译： 提供了一种新颖的薄膜磁头，其特征在于使用机械性能和切削性优异的新型基材。 该基材由包含4至45体积％的组分A，55至96体积％的组分B和至多3体积％的不可避免的杂质的陶瓷压块组成：组分A：选自组中的至少一种 由元素周期表IVa族，Ⅴa和Ⅵa族元素的碳化物，氮化物，碳氮化物，羧基，氮氧化物和羧基氮化物组成，以及它们的混合物或固体溶液。 组分B：由至少70重量％的四方晶系和/或立方体系组成的ZrO 2，余量为单斜晶系，其中选自元素周期表Ⅲa族元素的氧化物，CaO和MgO中的至少一种 ，及其混合物溶解形成固溶体。