公开(公告)号：US20040089435A1

公开(公告)日：2004-05-13

申请号：US10293778

申请日：2002-11-12

发明人： Shaupoh Wang

IPC分类号： B22D017/12 ,  B22D027/02

CPC分类号： B22D17/007 ,  B22D17/12 ,  B22D27/02

摘要： A die-casting method and a device for use in the die-casting method are disclosed. The casting material, which can be liquid metal, semi-solid metal or metal-matrix composite, in the shot chamber of a die-casting machine is driven to flow with high shear rate to mix homogeneously by the electromotive force induced with at least one low-frequency shifting electromagnetic field. The temperature and the microstructure of the casting material near the shot chamber are further controlled and perturbed by at least one high-frequency electromagnetic field to minimize the temperature difference or the growth of dendritic microstructure. To ensure the efficiency of the electromagnetic fields, the shot chamber is made of non-magnetic material and its wall thickness is less than three times the penetration depth of the electromagnetic fields. The shot chamber is surrounded by at least one solenoid coil, a conducting shield and at least one electric motor stator. The conducting shield, which that only allows the low-frequency electromagnetic field to penetrate, protects the stator from being over heated by the high-frequency electromagnetic field.

摘要翻译： 公开了一种压铸方法和压铸方法中使用的装置。 在压铸机的喷丸室中可以将液态金属，半固体金属或金属基复合材料的铸造材料以高剪切速率流动，以通过至少一个所引起的电动势均匀混合 低频电磁场。 通过至少一个高频电磁场进一步控制喷射室附近的铸造材料的温度和微观结构，以最小化温度差或树枝状微观结构的生长。 为了确保电磁场的效率，喷射室由非磁性材料制成，其壁厚小于电磁场穿透深度的三倍。 喷射室被至少一个螺线管线圈，导电屏蔽和至少一个电动机定子包围。 仅允许低频电磁场穿透的导电屏蔽保护定子免受高频电磁场的过度加热。

公开(公告)号：US20030141033A1

公开(公告)日：2003-07-31

申请号：US10066527

申请日：2002-01-31

申请人： THT Presses Inc.

发明人： Richard J. Kamm ,  John L. Jorstad

IPC分类号： B22D023/06 ,  B22D017/12 ,  B22D025/00

CPC分类号： B22D17/007 ,  B22D17/12 ,  Y10S164/90

摘要： A metal alloy is heated to a molten state, and a grain refiner may be added. The refined molten alloy is poured into a large diameter shot sleeve of a vertical die cast press and on top of a shot piston. The shot sleeve is transferred to an injection station while the molten alloy cools to a semi-solid slurry with approximately fifty percent solids and a globular, generally non-dendritic microstructure. A center portion of the slurry is injected upwardly by the piston through a gate opening into a die cavity while an outer more solid portion of the slurry is entrapped in an annular recess. After the slurry solidifies, the shot piston retracts, and the shot sleeve is transferred to a position where the residual biscuit is removed. A second shot sleeve filled with the molten alloy is transferred to the metal transfer station, and the process is repeated.

摘要翻译： 将金属合金加热至熔融状态，并且可以加入晶粒细化剂。 将精炼的熔融合金倒入垂直压铸机的大直径喷射套筒中并在射出活塞的顶部。 喷射套筒转移到注射站，而熔融合金冷却至具有约50％固体和球状，通常非树枝状微结构的半固体浆料。 浆料的中心部分被活塞向上注入，通过闸门开口进入模腔，同时浆料的外部更固体部分被截留在环形凹部中。 浆料固化后，喷射活塞缩回，喷射套筒转移到残留饼干被去除的位置。 填充有熔融合金的第二注射套筒被转移到金属转运站，并重复该过程。

公开(公告)号：US6068043A

公开(公告)日：2000-05-30

申请号：US578047

申请日：1995-12-26

申请人： William Eugene Clark

发明人： William Eugene Clark

IPC分类号： B22D17/00 ,  B22D17/12 ,  B22D23/00

CPC分类号： B22D17/007 ,  B22D17/12 ,  Y10S164/90

摘要： A method for the forming of semi-solid nucleated metallic alloys that have been sprayed in molten form into a container for intermediate casting. According to the present invention, a molten stream of metallic alloy is disrupted into a plurality of molten metallic alloy droplets, and the droplets are partially solidified as a plurality of degenerative dendritic globules so that approximately 5% to 60% by volume of each average degenerative dendritic globule is solid and the remainder is molten. The partially solidified globules are collected to form a semi-solid mass, and a portion of the semi-solid mass is forced into a die cavity prior to solidification to form a shaped metallic alloy.

摘要翻译： 用于形成已经以熔融形式喷射到用于中间铸造的容器中的半固体有核金属合金的方法。 根据本发明，金属合金的熔融流被破坏成多个熔融的金属合金液滴，并且液滴被部分地固化为多个退化的树枝状球，使得每个平均退化的约5〜60体积％ 树枝状球是固体，其余部分是熔融的。 收集部分凝固的球体以形成半固体物质，并且在固化之前将一部分半固体物质压入模腔中以形成成形金属合金。

公开(公告)号：US5971057A

公开(公告)日：1999-10-26

申请号：US28505

申请日：1998-02-24

申请人： Saburo Yukisawa ,  Shinji Akimoto ,  Tatsuyoshi Miyazaki

发明人： Saburo Yukisawa ,  Shinji Akimoto ,  Tatsuyoshi Miyazaki

IPC分类号： B22D17/02 ,  B22D17/12 ,  B22D17/20 ,  B22D17/32 ,  B22D17/04

CPC分类号： B22D17/12 ,  B22D17/32

摘要： An injection molding machine having a simple structure and adapted to quickly produce molded products without significant flaws on the surface is provided. It comprises a plunger being adapted to introduce the molten metal into the cylinder section, a nozzle for injecting the molten metal fed from the plunger into a metal mold and a piston arranged within a cylinder section of the plunger to slidingly reciprocate. It includes a piston drive unit for driving the piston to slidingly reciprocate, a stopper member for controlling the retracted position of the piston drive unit and a position selecting unit for defining a projected position and a retracted position for the stopper member.

摘要翻译： 提供了一种具有简单结构并适于快速生产模制产品而没有表面上明显缺陷的注射成型机。 它包括用于将熔融金属引入气缸部分的柱塞，用于将从柱塞进料的熔融金属喷射到金属模具中的喷嘴和布置在柱塞的气缸部分内以滑动地往复运动的活塞。 其包括用于驱动活塞滑动往复运动的活塞驱动单元，用于控制活塞驱动单元的缩回位置的止动构件和用于限定止动构件的突出位置和缩回位置的位置选择单元。

公开(公告)号：US5839497A

公开(公告)日：1998-11-24

申请号：US952790

申请日：1997-11-13

申请人： Kiyoshi Fujino ,  Minoru Okamura

发明人： Kiyoshi Fujino ,  Minoru Okamura

IPC分类号： B22D17/12 ,  B22D17/20 ,  B22D17/22 ,  B22D17/30

CPC分类号： B22D17/2236 ,  B22D17/12 ,  B22D17/2015 ,  B22D17/2038 ,  B22D17/30

摘要： An interior cooling inner plunger is caused to project from an outer plunger after casting. Alternatively, during casting, while it projects from the outer plunger, the inner plunger is inserted into a frustoconical gate. Subsequently, a pressure pin is moved downward from a movable mold side to a portion near a gate portion. When a melt solidifies, a casting sleeve and a casting plunger are moved downward, and a pressure pin is further moved downward to cut apart a biscuit from a mold product. An excellent product is produced and the cycle time is shortened by a good melt pushing operation.

摘要翻译： PCT No.PCT / JP97 / 00888 Sec。 371日期：1997年11月13日 102（e）日期1997年11月13日PCT 1997年3月19日PCT公布。 第WO97 / 34719号公报 日期1997年9月25日内部冷却内柱塞在铸造后从外柱塞突出。 或者，在铸造期间，当其从外部柱塞突出时，内部柱塞插入截头圆锥形门。 随后，压脚从可动模侧向下移动到靠近门部的部分。 当熔体固化时，铸造套筒和铸造柱塞向下移动，并且压力销进一步向下移动以将模具产品的饼干分开。 通过良好的熔融挤压操作，生产出优异的产品并缩短了循环时间。

公开(公告)号：US5632321A

公开(公告)日：1997-05-27

申请号：US606331

申请日：1996-02-23

申请人： Robert W. Hegel ,  Melvin C. Hawke

发明人： Robert W. Hegel ,  Melvin C. Hawke

IPC分类号： B22D17/12

CPC分类号： B22D17/12

摘要： A vertical die cast apparatus having a novel docking/shot assembly in which the docking and docking cylinder and shot cylinder are constructed in one compound cylinder. A novel construction for supporting the docking/shot assembly is also provided.

摘要翻译： 具有新型对接/射击组件的垂直压铸设备，其中对接和对接缸和喷射缸被构造在一个复合气缸中。 还提供了用于支撑对接/射击组件的新颖结构。

公开(公告)号：US5332026A

公开(公告)日：1994-07-26

申请号：US951804

申请日：1992-09-28

申请人： Ted H. Thieman ,  Richard J. Kamm

发明人： Ted H. Thieman ,  Richard J. Kamm

IPC分类号： B22D17/12 ,  B22D19/00

CPC分类号： B22D17/12 ,  B22D19/0054

摘要： An ingot having a predetermined amount of electrolytic copper and a small percentage of boron copper alloy is rapidly heated to about 2,100.degree. F. in a clay graphite crucible by induction coils surrounding the crucible. The crucible and the entire amount of molten copper are automatically transferred to a cavity defined within a shot cylinder above a vertically movable shot piston of a vertical die casting press. A shuttle moves a lower end ring mold and a stack of connected rotor laminations into a position above the shot cylinder, and the press moves an upper end ring mold downwardly to clamp the stack between the molds and against the cylinder. The molten copper is rapidly injected upwardly through gates within the lower mold and into end ring cavities within the molds and also through connecting aligned bar slots within the stack of laminations with a shot pressure of about 2250 psi. After the copper solidifies by circulating cooling water within the molds, the press opens and the die cast rotor and lower mold are transferred by the shuttle to a position where the rotor is ejected upwardly from the lower mold by a fluid cylinder. The copper rotor is annealed by induction heating the rotor to about 1,500.degree. F. and allowed to air cool.

摘要翻译： 具有预定量的电解铜和少量硼铜合金的锭通过围绕坩埚的感应线圈在粘土石墨坩埚中快速加热至约2100°F。 坩埚和熔融铜的总量自动转移到垂直压铸机的可垂直移动的喷射活塞上方的喷射缸内限定的空腔。 梭子将下端环模具和连接的转子叠片堆叠移动到喷射缸上方的位置，并且压力机将上端环模具向下移动以将堆叠夹在模具之间并且抵靠气缸。 熔融铜通过下模具内的闸板向上快速地注入模具内的端环空腔中，并且还通过以大约2250psi的喷射压力连接叠层体内的对准的杆槽。 铜通过在模具内循环冷却水而凝固，压力开启，压铸转子和下模通过梭子转移到转子从下模向上被流体缸向上喷射的位置。 铜转子通过将转子感应加热至约1500°F进行退火，并使其冷却。

公开(公告)号：US5211216A

公开(公告)日：1993-05-18

申请号：US764367

申请日：1991-09-23

申请人： Paul E. Drury ,  James M. Evans ,  Stephen W. Buckman ,  Roland N. Gibbs

发明人： Paul E. Drury ,  James M. Evans ,  Stephen W. Buckman ,  Roland N. Gibbs

IPC分类号： B22D17/12 ,  B22D17/14 ,  B22D17/32

CPC分类号： B22D17/12 ,  B22D17/14

摘要： An improved squeeze casting process is utilized to produce metal castings having superior mechanical properties. The process is particularly adapted for use in a vertical casting machine and is characterized by vacuum ladling, vacuum evacuated mold cavities, low metal temperatures, small metal feed gates and high gate velocities, application of high metal pressure on the metal filled cavity through the feed gate, and short processing times. When applied to aluminum alloy casting the squeeze casting process produces metal castings that can be heat treated at high temperatures to improve their mechanical characteristics.

摘要翻译： 利用改进的挤压铸造工艺来生产具有优异机械性能的金属铸件。 该方法特别适用于立式铸造机，其特征在于真空包扎，真空抽真空模具腔，低金属温度，小金属进料门和高门速度，通过进料在金属填充腔上施加高金属压力 门和处理时间短。 当应用于铝合金铸造时，挤压铸造工艺生产可在高温下进行热处理以提高其机械特性的金属铸件。

公开(公告)号：US4840557A

公开(公告)日：1989-06-20

申请号：US125549

申请日：1987-11-25

申请人： Kenji Ishimoto ,  Kouji Kawabata

发明人： Kenji Ishimoto ,  Kouji Kawabata

IPC分类号： B22D17/12 ,  B22D17/22 ,  B22D27/11

CPC分类号： B22D17/12 ,  B22D17/2236 ,  B22D27/11

摘要： A vertical injection apparatus is incorporated with a parting mold including upper and lower mold halves and defining a cavity to be filled with a melt. The lower mold half has a vertical sleeve hole at the outer side thereof and a vertical melt passage hold communicating between the cavity and the sleeve hole. The upper mold half has a vertically extending pin hole coaxial with the melt passage hole and open to the cavity and provided with a vertically extending mold pin movable through the pin hole. At least an upper part of the melt passage hole in the vicinity of the cavity has a diameter smaller than that of the sleeve hole but slightly large than the of the mold pin. Preferably, the cavity is designed for a disk wheel having a central hole through which the mold pin is allowed to pass, and the lower mold half forms a contoured inner surface corresponding to a decorated surface of the disk wheel. After the melt in a sleeve is injected by a plunger into the cavity through the melt passage hole, the mold pin is forced to move to a lower position so that a lower free end portion of the mold pin is inserted into the melt passage hole through the cavity, thus urging the melt filled in the cavity and the melt passage hole against the surface of the cavity.

公开(公告)号：US4690197A

公开(公告)日：1987-09-01

申请号：US736654

申请日：1985-05-21

申请人： Sadayuki Dannoura

发明人： Sadayuki Dannoura

IPC分类号： B22D11/10 ,  B22D17/12

CPC分类号： B22D17/12

摘要： A molten metal pouring device of the type having a stationary cover die and a movable rejector die which, when joined and held securely together in the horizontal direction, define a die cavity, a reduced-diameter restricted portion in communication with the bottom of the die cavity and an enlarged-diameter vertical bore in communication with the lower end of the reduced-diameter restricted portion; a vertical pouring sleeve for containing molten metal to be forced into the die cavity; and a plunger capable of vertically reciprocating in the vertical pouring sleeve to force the molten metal into said die cavity, characterized in that a stepped portion is formed in the inner wall surface surrounding the vertical bore.

摘要翻译： 一种熔融金属浇注装置，其具有固定盖模头和可移动的排料模头，当沿水平方向连接并牢固地固定在一起时，形成模腔，与模具的底部连通的减径限制部分 空腔和与缩小直径限制部分的下端连通的一个较大直径的垂直孔; 用于容纳被迫进入模腔的熔融金属的垂直浇注套筒; 以及柱塞，其能够在垂直浇注套筒中垂直往复运动，以迫使熔融金属进入模腔，其特征在于，在围绕垂直孔的内壁表面中形成台阶部分。