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43 条记录 (耗时 0.028 秒)

    Process for producing metal matrix composite materials
    2.
    发明授权
    Process for producing metal matrix composite materials 有权
    生产金属基复合材料的工艺

    公开(公告)号：US08282748B2

    公开(公告)日：2012-10-09

    申请号：US10577914

    申请日：2004-10-16

    申请人： Florian Moll ,  Lutz Oemisch ,  Ulrich Bischofberger ,  Karl Ulrich Kainer ,  Norbert Hort ,  Hajo Dieringa ,  Hagen Frank

    发明人： Florian Moll ,  Lutz Oemisch ,  Ulrich Bischofberger ,  Karl Ulrich Kainer ,  Norbert Hort ,  Hajo Dieringa ,  Hagen Frank

    IPC分类号： C22F1/06 ,  C22C23/00 ,  C22C1/04

    CPC分类号： B22D17/007 ,  C22C1/005 ,  C22C1/1036 ,  C22C32/0078 ,  C22C2001/1052

    摘要： The invention relates to a method for producing metal matrix composite materials, including at least one proportion of magnesium or one magnesium alloy and involving at least one production step in which a thixomolding ensues. According to the invention, an Mg2Si phase having a volume fraction of at least 2% is incorporated in a metal matrix preferably comprised of magnesium or of a magnesium alloy. The inventive method uses the thixomolding method for the in-situ production of a metallic composite material and is advantageous in that a broad range of adjustable volume fractions of the Mg2Si phase in the composite material results whereby enabling the properties of the composite material to be individually modified. The inventive metal matrix composite material is particularly suited for producing thermally stressed parts of motor vehicles such as pistons or the like.

    摘要翻译： 本发明涉及一种生产金属基复合材料的方法，该材料包括镁或一种镁合金的至少一部分，并涉及至少一个制造步骤，其中进行触变成型。 根据本发明，体积分数至少为2％的Mg 2 Si相被掺入优选由镁或镁合金构成的金属基体中。 本发明的方法使用触变成型方法用于金属复合材料的原位生产，并且有利的是，复合材料中的Mg2Si相的可调体积分数的宽范围的结果是使复合材料的性质能够单独地 改性。 本发明的金属基复合材料特别适用于制造机动车辆如活塞等的热应力部件。

    Neutron Absorption Effectiveness for Boron Content Aluminum Materials
    3.
    发明申请
    Neutron Absorption Effectiveness for Boron Content Aluminum Materials 审中-公开
    硼含量铝材料的中子吸收效果

    公开(公告)号：US20080050270A1

    公开(公告)日：2008-02-28

    申请号：US11568172

    申请日：2005-04-21

    申请人： Xiao-Guang Chen ,  Ghyslain Dube ,  Nigel Steward

    发明人： Xiao-Guang Chen ,  Ghyslain Dube ,  Nigel Steward

    IPC分类号： G21F1/08 ,  C22B21/00 ,  C22C21/00 ,  C22C32/00

    CPC分类号： C22C1/1036 ,  B22D21/007 ,  C22C32/0057 ,  C22C32/0073 ,  C22C2001/1052 ,  G21C7/24 ,  Y02E30/39

    摘要： A method is described for improving neutron absorption in aluminum-based cast composite material, which comprises preparing a molten composite from an aluminum alloy matrix and aluminum-boron intermetallics containing relatively large boron-containing particles, and either (a) heating the composite and holding for a time sufficient to partially dissolve the boron-containing particles and then adding titanium to form fine titanium diboride particles, and casting the composite, or (b) adding gadolinium or samarium to the molten composite or to the aluminum alloy matrix and casting the composite to precipitate fine particles of Gd—Al or Sm—Al within the cast composite, said fine particles filling gaps around the large boron-containing particles with neutron absorbing material. A neutron absorbing cast composite material is obtained comprising neutron absorbing compounds in the form of large particles comprising B4C or an aluminum-boron intermetallic and a distribution of fine particles or precipitates comprising TiB2 or (AlTi)B2, Sm-aluminum intermetallic compounds or Gd-aluminum intermetallic compounds.

    摘要翻译： 描述了一种用于改善铝基铸造复合材料中的中子吸收的方法，其包括从铝合金基体和含有相对较大的含硼颗粒的铝 - 硼金属间络合物制备熔融复合物，以及（a）加热复合材料和保持 足以部分溶解含硼颗粒，然后加入钛以形成细二硼化钛颗粒，并浇铸复合材料，或（b）向熔融复合材料或铝合金基体中加入钆或钐，并将复合材料 在铸造复合材料中析出Gd-Al或Sm-Al的细颗粒，所述细颗粒用中子吸收材料填充大的含硼颗粒周围的间隙。 获得的中子吸收铸造复合材料包括中子吸收化合物，其形式为包含B 4 C或者铝 - 硼金属间化合物的大颗粒，以及包含TiB 2 /（AlTi）B 2，Sm-铝金属间化合物或Gd-铝金属间化合物。

    Process for producing a solder preform having high-melting metal particles dispersed therein
    6.
    发明授权
    Process for producing a solder preform having high-melting metal particles dispersed therein 有权
    用于生产分散有高熔点金属颗粒的焊料预制件的方法

    公开(公告)号：US08790472B2

    公开(公告)日：2014-07-29

    申请号：US11628746

    申请日：2005-05-09

    申请人： Minoru Ueshima ,  Takashi Ishii

    发明人： Minoru Ueshima ,  Takashi Ishii

    IPC分类号： B22D17/00

    CPC分类号： B23K35/40 ,  B23K35/0222 ,  B23K35/025 ,  B23K35/22 ,  C22C2001/1052 ,  Y10T428/1216

    摘要： [Problems] A conventional process for producing a solder preform in which a predetermined amount of high-melting metal particles are directly put into molten solder and stirred, requires a long time for dispersing the high-melting metal particles by stirring. Therefore, in the conventional method for producing a solder preform, dissolution of the high-melting metal particles into the molten solder occurred during stirring, and their particle diameters became small. If a semiconductor chip and a substrate are soldered with a solder preform containing metal particles having such decreased diameters, the space between portions being soldered becomes narrow, and a sufficient bonding strength is not obtained.[Means for Solving the Problems] In the present invention, a premixed master alloy having a higher proportion of the high-melting metal particles in solder is first prepared, then the premixed master alloy is put into molten solder to disperse the high-melting metal particles. As a result, the high-melting metal particles can be uniformly dispersed in solder in a short length of time. Accordingly, a solder preform which is obtained by the process for producing a solder preform according to the present invention can maintain a predetermined clearance between portions being soldered, and a sufficient bonding strength is obtained.

    摘要翻译： [问题]将预定量的高熔点金属颗粒直接投入熔融焊料并搅拌的用于生产焊料预制件的常规方法需要长时间以通过搅拌分散高熔点金属颗粒。 因此，在以往的焊料预制体的制造方法中，在熔融焊料中溶解高熔点金属粒子发生搅拌，粒径变小。 如果半导体芯片和基板与含有直径减小的金属粒子的焊料预制体焊接，则被焊接的部分之间的间隔变窄，并且不能获得充分的接合强度。 解决问题的手段在本发明中，首先准备焊料中高熔点金属颗粒比例较高的预混合母合金，然后将预混合的母合金放入熔融焊料中以分散高熔点金属 粒子。 结果，高熔点金属颗粒可以在短时间内均匀地分散在焊料中。 因此，通过本发明的焊料预成型体的制造方法获得的焊料预成型体可以在被焊接的部分之间保持规定的间隙，并且获得充分的接合强度。

    Heat sink material
    7.
    发明申请
    Heat sink material 失效
    散热材料

    公开(公告)号：US20030082393A1

    公开(公告)日：2003-05-01

    申请号：US10279959

    申请日：2002-10-24

    申请人： NGK Insulators, Ltd.

    发明人： Shuhei Ishikawa ,  Tsutomu Mitsui ,  Hiroyuki Takeuchi ,  Seiji Yasui ,  Ken Suzuki ,  Nobuaki Nakayama

    IPC分类号： B32B009/00

    CPC分类号： C22C12/00 ,  C22C1/1036 ,  C22C9/10 ,  C22C2001/1021 ,  C22C2001/1052 ,  C22C2001/1057 ,  H01L21/4871 ,  H01L23/373 ,  H01L23/3736 ,  H01L2924/0002 ,  Y10T428/30 ,  H01L2924/00

    摘要： A mass of graphite is placed into a case, and the case is put into a furnace (step S301). The space in the furnace is heated to produce a porous sintered body of graphite (step S302). Thereafter, the case with the porous sintered body contained therein is removed from the furnace, and put into a cavity in a press (step S303). Then, a molten mass of a metal is poured into the case (step S304), and a punch is inserted into the cavity to press the molten metal into the porous sintered body in the case (step S305).

    摘要翻译： 将一块石墨放入壳体中，将壳体放入炉中（步骤S301）。 加热炉中的空间以产生多孔石墨烧结体（步骤S302）。 此后，将其中包含的多孔烧结体的情况从炉中取出并放入压机中的空腔（步骤S303）。 然后，将金属熔融物倒入到壳体中（步骤S304），并且在该情况下将冲头插入到空腔中以将熔融金属压入多孔烧结体（步骤S305）。

    Cast composite materials having an Al-Mg matrix alloy
    8.
    发明授权
    Cast composite materials having an Al-Mg matrix alloy 失效
    具有AL-MG MATRIX合金的CAST复合材料

    公开(公告)号：US5246057A

    公开(公告)日：1993-09-21

    申请号：US839835

    申请日：1992-02-21

    申请人： Inge L. H. Hansson ,  David J. Lloyd ,  Iljoon Jin ,  Michael D. Skibo

    发明人： Inge L. H. Hansson ,  David J. Lloyd ,  Iljoon Jin ,  Michael D. Skibo

    IPC分类号： C22C1/10 ,  C22C21/00 ,  C22C21/06 ,  C22C32/00

    CPC分类号： C22C32/00 ,  C22C1/1036 ,  C22C21/06 ,  C22C32/0036 ,  C22C2001/1047 ,  C22C2001/1052

    摘要： A method for preparing a composite material comprises the steps of providing a first mixture of a molten aluminum-base matrix alloy having at least about 4 percent by weight magnesium, and a mass of discontinuous reinforcing particles that are not soluble in the molten matrix alloy, and mixing the first mixture to wet the matrix alloy to the particles and to distribute the particles throughout the volume of the molten matrix alloy. The first matrix alloy is diluted to reduce the magnesium content of the mixture to less than about 4 percent by weight magnesium, to produce a second mixture, and the second mixture is cast. The second mixture has at least about 5 volume percent particles, and preferably has about 5-25 volume percent particles.

    摘要翻译： 制备复合材料的方法包括以下步骤：提供具有至少约4重量％镁的熔融铝基基质合金和不溶于熔融基质合金的不连续增强颗粒的质量的第一混合物， 并将第一混合物混合以将基质合金润湿至颗粒，并将颗粒分散在整个熔融基质合金的体积中。 将第一种基质合金稀释以将混合物的镁含量降低至小于约4％（重量）的镁，以产生第二种混合物，并将第二种混合物浇铸。 第二混合物具有至少约5体积％的颗粒，优选具有约5-25体积％的颗粒。