公开(公告)号：US5427170A

公开(公告)日：1995-06-27

申请号：US272160

申请日：1994-07-08

申请人： Yasuyuki Arakawa ,  Tamotsu Hasegawa ,  Atushi Ota ,  Minoru Uozumi

发明人： Yasuyuki Arakawa ,  Tamotsu Hasegawa ,  Atushi Ota ,  Minoru Uozumi

IPC分类号： B22D17/22 ,  B22D18/02 ,  B22D18/06 ,  B22D18/04

CPC分类号： B22D18/06

摘要： A vacuum casting apparatus includes a plurality of pressure pins arranged in a molding cavity, and at least one pressure pin is located in a portion of the molding cavity farthest from a gate. The pressure pins are operated to pressurize the molding cavity in an order from the pressure pin located farthest from the gate to a pressure pin located nearest to the gate. A cross-sectional area reduced portion can also be formed in a portion of a runner connecting the molding cavity and the molten metal retaining dome. A molten metal in the molding cavity is thereby suppressed from flowing backward into the molten metal retaining dome when being pressurized by the pressure pins, so that the quality of the cast products is improved.

摘要翻译： 真空铸造装置包括布置在模制腔中的多个压力销，并且至少一个压力销位于距离浇口最远的模制腔的一部分中。 压力销被操作以从位于最远离门的压力销到位于最靠近门的压力销的顺序上的顺序对成型腔加压。 横截面减小部分也可以形成在连接模制腔和熔融金属保持圆顶的流道的一部分中。 由此，当通过压销加压时，模制腔中的熔融金属被抑制回流入熔融金属保持拱顶，从而提高了铸造产品的质量。

公开(公告)号：US5252150A

公开(公告)日：1993-10-12

申请号：US907618

申请日：1992-07-02

申请人： Isamu Yuki ,  Minoru Uozumi ,  Ryoji Nakamura

发明人： Isamu Yuki ,  Minoru Uozumi ,  Ryoji Nakamura

IPC分类号： C22C14/00

CPC分类号： C22C14/00

摘要： Disclosed are a Ti--Al alloy including aluminum (Al) in an amount of 30 to 38% by weight, nitrogen (N) in an amount of 0.2 to 1.0% by weight, and titanium (Ti), substantially the balance, and a process for producing the same. Since the Ti--Al alloy includes the nitrogen in the predetermined amount, the microstructure of the Ti--Al alloy can be micro-fined and made into a uniform one, and accordingly the shrinkage cavities can be reduced remarkably. Therefore, the strength, the ductility or the like of the Ti--Al alloy can be improved remarkably. With the production process, it is possible to produce the Ti--Al alloy including the nitrogen in the predetermined range.

摘要翻译： 公开了包含30〜38重量％的铝（Al），0.2〜1.0重量％的氮（N）和基本上为余量的钛（Ti））的Ti-Al合金，以及 生产方法 由于Ti-Al合金包含预定量的氮，因此可以将Ti-Al合金的微结构微细化并制成均匀的微细结构，因此可以显着地降低收缩空间。 因此，可以显着提高Ti-Al合金的强度，延展性等。 通过制造方法，可以制造包含氮的规定范围的Ti-Al合金。

公开(公告)号：US06217803B1

公开(公告)日：2001-04-17

申请号：US09142741

申请日：1998-09-15

申请人： Minoru Uozumi

发明人： Minoru Uozumi

IPC分类号： B29C3900

CPC分类号： B22D11/145 ,  B22D11/04

摘要： A partition member having partition walls arranged in a lattice is disposed in the vicinity of an upper surface of a molten metal mass. The upper surface is divided by the partition walls into a multiplicity of segmental surfaces. A forming starter member is brought into contact with the partition member so that the molten material adheres to a starter surface of the forming starter member, and is then separated from the partition member. The molten metal is drawn from each of the segmental surfaces, and the drawn metal is solidified to form a piece which has a cross sectional shape corresponding to the shape of the starter surface. With the use of forming starter members having respective starter surfaces which are different in shape from each other, it is possible to form pieces having various cross sectional shapes which correspond to the shapes of the starter surfaces.

摘要翻译： 具有排列成格子的隔壁的分隔构件设置在熔融金属块的上表面附近。 上表面被分隔壁分成多个分段表面。 成形引锭部件与分隔部件接触，使得熔融材料附着在成形引锭部件的起动面上，然后与分隔部件分离。 熔融金属从每个节段表面拉出，并且拉伸的金属被固化以形成具有对应于起动器表面的形状的横截面形状的片。 通过使用具有彼此不同形状的起动器表面的起动器构件，可以形成具有与起动器表面的形状对应的各种截面形状的片。

公开(公告)号：US5620041A

公开(公告)日：1997-04-15

申请号：US627329

申请日：1996-04-04

申请人： Mituyoshi Sato ,  Minoru Uozumi ,  Masao Nakayama

发明人： Mituyoshi Sato ,  Minoru Uozumi ,  Masao Nakayama

IPC分类号： B22D18/06

CPC分类号： B22D18/06

摘要： A vacuum casting apparatus secures gas tightness of the die cavity without welding together a straight-tubular stalk and a flange or flanges, thus permitting an excellent quality casting. A flange is mounted on an outer periphery of a stalk, and secured between a gas-tight chamber and a die, forming a recess bounded by the die, a surface of the flange, and an outer surface of the stalk. The space inside the chamber is evacuated to a first degree of vacuum so that molten metal is withdrawn into the stalk and overflows the end of the stalk, and flows into the recess. Molten metal in the recess cools and solidifies to form a gas-tight seal between the stalk and the flange. Then, the space inside the chamber is evacuated to a second degree of vacuum and molten metal is withdrawn through the stalk and into the cavity of the die.

摘要翻译： 真空铸造装置确保模腔的气密性，而不会将直管状的杆和法兰或凸缘焊接在一起，从而允许优质的铸造。 凸缘安装在杆的外周上，并且固定在气密室和模具之间，形成由模具限定的凹部，凸缘的表面和柄的外表面。 室内的空间被抽空到第一级真空度，使得熔融金属被抽出到柄中并使杆的端部溢出并流入凹槽中。 凹陷中的熔融金属冷却并固化，以在柄和凸缘之间形成气密密封。 然后，将腔室内的空间抽真空至第二度的真空度，并将熔融金属通过杆抽出并进入模具的空腔。

公开(公告)号：US5355934A

公开(公告)日：1994-10-18

申请号：US93585

申请日：1993-07-19

申请人： Minoru Uozumi ,  Mituyoshi Sato ,  Kunio Shimizu ,  Masao Nakayama

发明人： Minoru Uozumi ,  Mituyoshi Sato ,  Kunio Shimizu ,  Masao Nakayama

IPC分类号： B22D18/06

CPC分类号： B22D18/06

摘要： A suction casting apparatus is disclosed, which comprises a ventilating casting die, a chamber box and a surface peat for supporting the casting die and chamber box. The surface plate has a a through hole for passing a stalk therethrough, and its surface is formed with grooves which extend from the through hole to an area outside a die mounting area and inside a chamber box mounting area. External air entering through a sealed clearance between the surface plate and the stalk and combustion gas generated from the casting die are quickly led through the grooves into the chamber inner space to be quickly exhausted to the outside.

摘要翻译： 公开了一种吸入铸造设备，其包括通风铸模，室箱和用于支撑铸模和室箱的表面泥炭。 表面板具有用于使杆穿过的通孔，其表面形成有从通孔延伸到管芯安装区域外部的区域和室内安装区域内的槽。 通过表面板和杆之间的密封间隙进入的外部空气和从铸模产生的燃烧气体迅速地通过槽进入室内空间，以迅速地排出到外部。