Method for producing hot forged material from powder
    22.
    发明授权
    Method for producing hot forged material from powder 失效
    从粉末制造热锻材料的方法

    公开(公告)号:US4321091A

    公开(公告)日:1982-03-23

    申请号:US76947

    申请日:1979-09-19

    摘要: A method for producing a powder forged material comprising 1.4.about.3.5% Si, 0.2.about.0.9% Mn and 1.0.about.2.0% C by weight, the remainder substantially consisting of iron is provided herein. This method consists in (a) pulverizing the swarf of an FCD cast iron mother material and separating and removing graphite microparticles from the mother material to produce a powder body of said mother material having a carbon content of 1.0.about.2.5%; (b) preforming the powder body having the reduced carbon content to a density lower than that of the mother material and applying a lubricant to the preformed body; (c) heating the preformed body at a temperature above the melting point of the mother material but below 1300.degree. C. in a non-carburizing atmosphere and then cooling the preformed body until the temperature of the body is lowered to 1000.degree..about.1100.degree. C. and forging the preformed body in a dye so that the specific gravity is the same or slightly higher than that of the mother material and, finally, (d) subjecting the forged body to a diffusion treatment by heating it above the austenitizing temperature. The present invention also relates to forged materials produced by this method.

    摘要翻译: 一种制造粉末锻造材料的方法,其包含1.4%的差3.5%Si,0.2%的差异为0.9%的Mn和1.0%的2.0重量%,其余基本上由铁组成。 该方法包括(a)粉碎FCD铸铁母材的切屑,并从母材中分离除去石墨微粒,以制备碳含量为1.0%的2.5%的所述母材的粉末体; (b)将具有降低的碳含量的粉末体预先形成的密度低于母材的密度,并将润滑剂施加到预成形体上; (c)在非渗碳气氛下,在高于母料熔点但低于1300℃的温度下加热预制体,然后冷却预成型体,直到体温降至1000℃。 并将预成型体在染料中锻造,使得比重与母材相同或略高,最后,(d)使锻造体通过在奥氏体化温度以上加热进行扩散处理。 本发明还涉及通过该方法制造的锻造材料。

    Valve gate device for use in an injection mold
    24.
    发明授权
    Valve gate device for use in an injection mold 失效
    用于注射模具的阀门装置

    公开(公告)号:US06179604B2

    公开(公告)日:2001-01-30

    申请号:US09041306

    申请日:1998-03-12

    申请人: Yoshinobu Takeda

    发明人: Yoshinobu Takeda

    IPC分类号: B29C4523

    摘要: An injection molding method, an injection mold and a valve gate device, in which a movable pin moves easily, without excess force being exerted thereto, to properly open and close a gate. Closing a gate 10B by a cylindrical movable pin 27 allows excess resin to easily return back to a resin conveying path side through an outer edge portion at the end of the movable pin 27, so that even a large-diameter gate 10B can be reliably closed by the movable pin 27 which can be easily moved due to reduced resin resistance on the movable pin 27.

    摘要翻译: 注射成型方法,注射模具和阀门装置,其中可移动销容易地移动,而不会施加过大的力来适当地打开和关闭闸门。 通过圆柱形可动销27封闭栅极10B允许多余的树脂容易地通过可动销27的端部处的外缘部分返回到树脂输送路径侧,使得即使大直径的门10B也可以可靠地闭合 通过可动销27由于可动销27上的树脂阻力降低而容易移动。

    Nitrogen-combined aluminum sintered alloys and method of producing the
same
    26.
    发明授权
    Nitrogen-combined aluminum sintered alloys and method of producing the same 失效
    氮组合铝烧结合金及其制造方法

    公开(公告)号:US5460775A

    公开(公告)日:1995-10-24

    申请号:US84947

    申请日:1993-07-02

    摘要: The invention provides aluminum sintered alloys with high dimensional accuracy and high density which are superior in mechanical and physical characteristics as well as wear resistance, and a method of producing such alloys not by plastic working but by atmospheric sintering with high economy. Rapidly solidified aluminum alloy powder resulting from solidifying aluminum alloy molten metal containing 0.4 to 4.0% by weight of Mg at a solidification rate of 10.sup.2 .degree. C./sec or more is press molded in the cold, after annealing in the temperature range of 250 to 450.degree. C. if necessary, and then the molded product is sintered by generating nitrogen compounds on the powder surface at atmospheric pressure with a nitrogen partial pressure of 0.8 atm or more and a steam partial pressure of 0.01 atm or less in which a reducing gas component has been added as a nitrogen-combining acceleration gas component by 0.01 atm or more. Thus, a nitrogen-combined aluminum sintered alloy containing 0.4 to 4.0% by weight and 0.2 to 4.0% by weight of nitrogen is obtained.

    摘要翻译: 本发明提供了具有优异的机械和物理特性以及耐磨性的高尺寸精度和高密度的铝烧结合金,以及不是通过塑性加工而是以高经济性的大气烧结制造这种合金的方法。 将固化的含有0.4〜4.0重量%Mg的铝合金熔融金属以固化速度为102℃/秒以上的快速固化的铝合金粉末在冷却后,在250〜 如果需要,然后通过在氮气分压为0.8大气压以上,蒸汽分压为0.01大气压以下的大气压下在粉末表面上产生氮化合物来烧结成型体,其中还原气体 作为氮合成加速气体成分添加0.01atm以上的成分。 因此,得到含有0.4〜4.0重量%和0.2〜4.0重量%的氮的氮组合铝烧结合金。

    Member for carrying a semiconductor device
    27.
    发明授权
    Member for carrying a semiconductor device 失效
    用于携带半导体器件的成员

    公开(公告)号:US5132776A

    公开(公告)日:1992-07-21

    申请号:US668794

    申请日:1991-03-06

    IPC分类号: H01L23/373

    摘要: A radiation member (10) for a semiconductor device is formed by an aluminum alloy member having a low thermal expansion aluminum alloy section (11) and a high radiation aluminum alloy section (12) which are joined and integrally formed with each other. A semiconductor device (13) is carried on the major surface of the low thermal expansion aluminum alloy section (11). The low thermal expansion coefficient aluminum alloy has an average thermal expansion coefficient of not more than 17.times.10.sup.-6 /.degree.C. The high radiation aluminum alloy is larger in thermal conductivity than the low thermal expansion aluminum alloy.

    摘要翻译: 用于半导体器件的辐射构件(10)由具有低热膨胀铝合金部分(11)和高辐射铝合金部分(12)的铝合金构件形成,所述铝合金构件彼此结合并整体形成。 半导体器件(13)被承载在低热膨胀铝合金部分(11)的主表面上。 低热膨胀系数铝合金的平均热膨胀系数不大于17×10 -6 /℃。高辐射铝合金的热导率比低热膨胀铝合金要大。

    Method of forming large-sized aluminum alloy product
    28.
    发明授权
    Method of forming large-sized aluminum alloy product 失效
    大型铝合金产品成型方法

    公开(公告)号:US4959195A

    公开(公告)日:1990-09-25

    申请号:US347879

    申请日:1989-05-04

    IPC分类号: B22F3/20 C22C1/04 C22C21/02

    CPC分类号: B22F3/20 C22C1/0416 C22C21/02

    摘要: The invention provides a process for preparing a large-sized P/M aluminum alloy product comprising:extruding at a temperature between 350.degree. and 500.degree. C. and at an extrusion ratio of 2 to 10, aluminum alloy powder consisting essentially of (a) 5 to 30% by weight of Si, (b) 0.5 to 10% by weight of at least one species selected from the group consisting of Cu, Mg, Fe, Ni, Cr, Mn, Mo, Zr and V with the proviso that the total amount of these species cannot exceed 30% by weight, and (c) aluminum in a remaining amount.

    摘要翻译: 本发明提供了一种制备大尺寸P / M铝合金产品的方法,包括:在350-500℃的温度和2-10的挤出比下挤出,基本上由(a)组成的铝合金粉末, 5〜30重量%的Si,(b)0.5〜10重量%的选自Cu,Mg,Fe,Ni,Cr,Mn,Mo,Zr和V中的至少一种,条件是 这些物质的总量不能超过30重量%,(c)剩余量的铝。

    Member for semiconductor device and method for producing the same
    29.
    发明授权
    Member for semiconductor device and method for producing the same 有权
    半导体装置用部件及其制造方法

    公开(公告)号:US06507105B1

    公开(公告)日:2003-01-14

    申请号:US09498338

    申请日:2000-02-04

    IPC分类号: H01L2912

    摘要: A member for semiconductor devices comprising a composite alloy of aluminum or an aluminum alloy and silicon carbide, wherein silicon carbide grains are dispersed in aluminum or the aluminum alloy in an amount of from 10 to 70% by weight, the amount of nitrogen in the surface of the member is larger than that in the inside thereof, and the ratio of aluminum or the aluminum alloy to silicon carbide is the same in the surface and the inside. The member is produced by mixing powdery materials of aluminum or an aluminum alloy and silicon carbide, compacting the mixed powder, and sintering the compact in a non-oxidizing atmosphere containing nitrogen gas, at a temperature between 600° C. and the melting point of aluminum. The member is lightweight and has high thermal conductivity as well as thermal expansion coefficient which is well matches with that of ceramics and others. Therefore, the member is especially favorable to high-power devices.

    摘要翻译: 包括铝或铝合金的复合合金和碳化硅的半导体器件的构件,其中碳化硅颗粒以10至70重量%的量分散在铝或铝合金中,表面中的氮的量 的构件比其内部大,铝或铝合金与碳化硅的比例在表面和内部相同。 该构件通过混合铝或铝合金的粉末材料和碳化硅,压制混合粉末,并在含有氮气的非氧化性气氛中,在600℃的温度和 铝。 该部件重量轻,导热系数高,热膨胀系数高,与陶瓷等相匹配。 因此,该会员特别有利于大功率设备。