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公开(公告)号：US5431212A
公开(公告)日：1995-07-11
申请号：US267901
申请日：1994-07-06
申请人： Yasuyuki Arakawa , Tamotsu Hasegawa , Atushi Ota , Minoru Uozumi
发明人： Yasuyuki Arakawa , Tamotsu Hasegawa , Atushi Ota , Minoru Uozumi
CPC分类号： B22D18/06
摘要： In a method of vacuum casting wherein when the molten metal previously introduced into a molten metal reservoir is fed into a cavity, the lowest head of the molten metal in the molten metal reservoir is held to be higher than the level of a sprue, so that the cycle time of casting may be shortened and the quality of cast products may be improved. To this end, the interior of the molten metal reservoir is held gas tight while the sprue is opened by a gate member of straight tubular shape.
摘要翻译： 在真空铸造的方法中，当将先前引入熔融金属储存器中的熔融金属进料到空腔中时，熔融金属储存器中的熔融金属的最低头部被保持为高于浇道的水平，使得 可以缩短铸造的循环时间，并且可以提高铸造产品的质量。 为此，熔融金属储存器的内部保持气密，同时浇口由直管状的浇口构件打开。
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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
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。
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3.发明授权Aluminum alloy casting having high strength and high toughness and process for producing the same 失效具有高强度和高韧性的铝合金铸件及其制造方法
公开(公告)号：US5298094A
公开(公告)日：1994-03-29
申请号：US799977
申请日：1991-11-29
申请人： Atushi Ota , Minoru Uozumi , Hirokazu Oonishi , Yoji Awano , Yoshihiro Shimizu , Hiroshi Kawahara
发明人： Atushi Ota , Minoru Uozumi , Hirokazu Oonishi , Yoji Awano , Yoshihiro Shimizu , Hiroshi Kawahara
摘要： Disclosed are an aluminum alloy casting having a high strength and a high toughness, and a production process for the same. The aluminum alloy casting comprises silicon (Si) in an amount of 2.5 to 4.4% by weight, copper (Cu) in an amount of 1.5 to 2.5% by weight, magnesium (Mg) in an amount of 0.2 to 0.5% by weight and the balance of aluminum (Al), and a matrix thereof includes a dendrite which has a size of 30 micrometers or less. Since the Si addition amount is suppressed as less as possible and since the size of the dendrite is micro-fined in the aluminum alloy casting, the toughness is improved remarkably. Further, since the Cu and Mg are added in the predetermined addition amounts, the strength is enhanced in the aluminum alloy casting. In addition, a solution treatment which is employed in the production process can further enhance the strength of the aluminum alloy casting.
摘要翻译： 公开了具有高强度和高韧性的铝合金铸件及其制造方法。 铝合金铸件包含2.5〜4.4重量％的硅（Si），1.5〜2.5重量％的铜（Cu），0.2〜0.5重量％的镁（Mg），0.2〜0.5重量％ 铝（Al）的平衡和其基体包括具有30微米或更小的尺寸的枝晶。 由于Si添加量尽可能少地被抑制，并且由于在铝合金铸件中枝晶的尺寸微细化，所以韧性显着提高。 此外，由于以规定的添加量添加Cu和Mg，所以在铝合金铸件中强度提高。 此外，在制造方法中使用的固溶处理能够进一步提高铝合金铸件的强度。
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公开(公告)号：US5423369A
公开(公告)日：1995-06-13
申请号：US75555
申请日：1993-06-24
CPC分类号： B22D18/06
摘要： In a method of vacuum casting molten metal sucked from a molten metal reservoir into a cavity held under a reduced pressure by opening a gate having been blocking the communication between the molten metal reservoir and the cavity, the trapping of gas and foreign matter in the cavity is effectively prevented. To this end, an accommodation space for accommodating gas and foreign matter is provided in the molten metal reservoir. The accommodation space is provided at a position from which the accommodated matter is not sucked into the cavity.
摘要翻译： PCT No.PCT / JP92 / 01387第 371日期：1993年6月24日 102（e）日期1993年6月24日PCT提交1992年10月26日PCT公布。 出版物WO / 9307977 日本1994年4月29日。在通过打开已经阻塞熔融金属储存器和空腔之间的连通的闸门的真空铸造熔融金属从熔融金属储存器吸入到减压保持的空腔中的方法中， 有效防止空腔内的气体和异物。 为此，在熔融金属储存器中设置有用于容纳气体和异物的容纳空间。 容纳空间设置在被容纳物未被吸入空腔的位置。
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公开(公告)号：US5385198A
公开(公告)日：1995-01-31
申请号：US104043
申请日：1993-08-18
申请人： Atsushi Ota , Minoru Uozumi , Hirokazu Onishi
发明人： Atsushi Ota , Minoru Uozumi , Hirokazu Onishi
摘要： A vacuum casting apparatus of the type wherein a gate mechanism (12 and 10) is closed to form a seal. The interior of a cavity (6) is evacuated by a vacuum pump. The side of the gate mechanism (12 and 10) opposite to the cavity is filled with molten metal. The gate mechanism includes a ring-shaped groove (10e) having a V-shaped cross section positioned on the side opposite to the cavity which extends towards the sealing portion of the gate mechanism (12 and 10). With this arrangement, the molten metal in passage (8) fills the ring-shaped groove (10e) and enters the small clearance which exists in the sealing portion of the gate mechanism. The molten metal solidifies both within the ring-shaped groove (10) and this small clearance formed in the sealing portion. The resulting solidified metal piece has generally a ring shape that can be readily peeled off from the gate mechanism (12 and 10) following die release.
摘要翻译： PCT No.PCT / JP92 / 01644 Sec。 371日期：1993年8月18日 102（e）日期1993年8月18日PCT提交1992年12月16日PCT公布。 出版物WO93 / 日期：1992年6月24日。一种其中门机构（12和10）关闭以形成密封的类型的真空铸造设备。 空腔（6）的内部通过真空泵抽真空。 与空腔相对的门机构（12和10）的一侧填充有熔融金属。 门机构包括一个环形槽（10e），其具有位于与腔体相对的一侧的V形横截面，该V形横截面向门机构（12和10）的密封部分延伸。 通过这种布置，通道（8）中的熔融金属填充环形槽（10e）并进入存在于门机构的密封部分中的小间隙。 熔融金属在环形槽（10）内固化，在密封部形成的小间隙固化。 所得到的凝固金属片通常具有环形形状，其可以在脱模后容易地从闸板机构（12和10）剥离。
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6.发明授权Continuous differential-pressure casting method wherein molten metal temperature is estimated from consumption amount of pouring tube due to immersion in molten metal 失效连续差压铸造方法，其中熔融金属温度由于浸入熔融金属中的浇注管的消耗量而被估计
公开(公告)号：US5385200A
公开(公告)日：1995-01-31
申请号：US77540
申请日：1993-06-17
申请人： Isamu Yuki , Minoru Uozumi
发明人： Isamu Yuki , Minoru Uozumi
摘要： A casting method wherein casting cycles are continuously performed with respective molds and a common mass of molten metal accommodated in a container, such that in each casting cycle, the mold cavity is filled with the molten metal through a pouring tube connected at one end to a sprue hole of the mold and immersed at the other end in the molten metal mass, due to a difference between pressures to which the mold and the container are exposed, and wherein the molten metal temperature is estimated from the detected amount of consumption of the immersed tube, and the actual molten metal temperature is regulated, on the basis of a difference between a predetermined desired temperature of the molten metal, and the estimated temperature which changes with the actual temperature.
摘要翻译： 一种铸造方法，其中铸造循环连续地用相应的模具和容纳在容器中的共同的熔融金属块进行，使得在每个铸造循环中，模腔通过一端连接到浇注管的熔融金属填充， 由于模具和容器暴露的压力之间的差异，模具的另一端浸入熔融金属块的另一端，并且其中熔融金属温度根据检测到的浸渍量的消耗量来估计 基于熔融金属的预定期望温度与随实际温度变化的估计温度之间的差异来调节实际熔融金属温度。
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公开(公告)号：US5555925A
公开(公告)日：1996-09-17
申请号：US307424
申请日：1994-09-19
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. Two flanges are mounted in a mutually spaced-apart relation on an outer periphery of a stalk, and secured between a gas-tight chamber and a die. The gas-tight chamber is fitted on the die from above to form a gas-tight space between the two flanges. The space is evacuated to a pressure close to an inner pressure formed in a cavity of the die during vacuum casting. Thus, air that intrudes into the cavity of the die through small gaps between the flanges and the stalk is reduced, thereby preventing casting defects which might otherwise result. An end of the stalk inserted into the die is also spread to bring an outer periphery of the stalk into close contact with an inner periphery of a flange mounted on the stalk. A first degree of vacuum is applied to the gas-tight chamber to draw molten metal through the stalk to a level above the insertion end of the stalk, and below an inlet of the die cavity, so that the molten metal cools and forms a gas-tight seal about the insertion end of the stalk, before a second degree of vacuum is applied to withdraw molten metal into the die cavity.
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。 两个凸缘以相互间隔开的关系安装在柄的外周上，并固定在气密室和模具之间。 气密室从上方安装在模具上，以在两个法兰之间形成气密的空间。 在真空铸造期间将空间抽真空至接近于在模具的空腔中形成的内部压力的压力。 因此，减小了通过法兰和柄之间的小间隙侵入模具的腔体中的空气，从而防止可能导致的铸造缺陷。 插入模具中的茎的端部也被扩展以使茎的外周与安装在茎上的凸缘的内周紧密接触。 将第一级的真空度施加到气密室，以将熔融金属通过杆拉出到杆的插入端上方并且在模腔的入口下方，使得熔融金属冷却并形成气体 在施加第二级真空以将熔融金属引入模腔之前围绕茎的插入端密封。
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8.发明授权
公开(公告)号：US5152960A
公开(公告)日：1992-10-06
申请号：US698096
申请日：1991-05-10
申请人： Isamu Yuki , Minoru Uozumi , Ryoji Nakamura
发明人： Isamu Yuki , Minoru Uozumi , Ryoji Nakamura
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 ally 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.
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公开(公告)号：US3942577A
公开(公告)日：1976-03-09
申请号：US489158
申请日：1974-07-17
申请人： Minoru Uozumi , Fumio Kawano , Norio Iwama
发明人： Minoru Uozumi , Fumio Kawano , Norio Iwama
IPC分类号： H02K44/06 , B22D7/00 , B22D9/00 , B22D11/10 , B22D11/103 , B22D11/18 , B22D37/00 , B22D39/00 , B22D27/02
CPC分类号： B22D39/003
摘要： A method of controlling electromagnetic casting for carrying out the pouring of molten metal is disclosed which utilizes an electromagnetic force generated by a travelling magnetic field. The apparatus for performing the method is constructed so that a single magnet coil for generating a travelling magnetic field is employed and the input current of one phase of the three-phase alternating current to be applied to the magnet coil is subjected to phase control, whereby the electromagnetic force of the travelling magnetic field is controlled so as to automatically effect compensation for the change of the molten metal level due to the decrease of the amount of molten metal remaining to be poured.
摘要翻译： 公开了一种利用由行驶磁场产生的电磁力来控制熔融金属浇注的电磁铸造的方法。 用于执行该方法的装置被构造成使得用于产生行进磁场的单个磁体线圈被施加到电磁线圈上的三相交流电的一相的输入电流进行相位控制，由此 控制行驶磁场的电磁力，以便由于剩余的待投入的熔融金属量的减少而自动地实现对熔融金属水平的变化的补偿。
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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。
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