Semi-solid molding method and apparatus
    1.
    发明授权
    Semi-solid molding method and apparatus 失效
    半固体成型方法和装置

    公开(公告)号:US07441584B2

    公开(公告)日:2008-10-28

    申请号:US11366678

    申请日:2006-03-02

    IPC分类号: B22D17/12 B22D23/00 B22D25/00

    摘要: A metal alloy is heated to a molten state and then poured into a shallow shot chamber defined by a shot sleeve and a shot piston of a vertical die cast press. A homogenizing member having L-shape arms projecting outwardly from a vertical shaft is inserted into the molten metal, and the shaft and arms are simultaneously rotated and orbited by a six axes robot for moving more solidified semi-solid metal cooled by the shot sleeve and shot piston into a more liquified semi-solid metal within a central portion of the shot chamber to form a homogenizing slurry. The force required to move the homogenizing member is used to determine the solid fraction of the slurry and to stop the homogenizing process after a predetermined force is detected. A hydraulic cylinder actuates the piston to transfer the semi-solid slurry upwardly from the shot chamber into a die cavity.

    摘要翻译: 将金属合金加热至熔融状态,然后倒入由喷射套筒和垂直压铸机的射出活塞限定的浅射室中。 将具有从竖直轴向外突出的L形臂的均质构件插入到熔融金属中,并且轴和臂同时由六轴机器人旋转和旋转,以移动由喷射套筒冷却的更固化的半固体金属, 将活塞喷射到喷射室的中心部分内的更液化的半固体金属中以形成均质浆料。 使用移动均质构件所需的力来确定浆料的固体分数,并且在检测到预定力之后停止均质化过程。 液压缸致动活塞,将半固体浆料从喷射室向上运送到模腔中。

    Semi-solid molding apparatus and method
    2.
    发明授权
    Semi-solid molding apparatus and method 有权
    半固体成型装置及方法

    公开(公告)号:US06901991B2

    公开(公告)日:2005-06-07

    申请号:US10422333

    申请日:2003-04-24

    摘要: A metal alloy is heated to a molten state and is poured into a 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 is cooled to a semi-solid slurry and a globular, generally non-dendritic microstructure. A retractable cooling pin is temporarily inserted into a center portion of the slurry while in the shot sleeve to obtain optimum cooling. 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. Another shot sleeve filled with the molten allow is transferred, and the process is repeated.

    摘要翻译: 将金属合金加热至熔融状态,并将其倒入立式压铸机的注射套筒中并在注射活塞的顶部。 将熔融合金冷却至半固体浆料和球状,通常为非树枝状微观结构,将喷射套筒转移到注射站。 在喷射套筒中,可伸缩冷却销暂时插入浆料的中心部分以获得最佳冷却。 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。 另外装满熔融容器的注射套筒被转移,重复该过程。

    Vertical die casting press and method of producing die cast metal parts
    3.
    发明授权
    Vertical die casting press and method of producing die cast metal parts 失效
    立式压铸机及压铸金属件的生产方法

    公开(公告)号:US06745819B2

    公开(公告)日:2004-06-08

    申请号:US10274688

    申请日:2002-10-21

    IPC分类号: B22D1700

    摘要: A fiber reinforced porous preform is positioned within a die cavity defined by upper and lower die members, and the lower die member defines at least one gate opening in the center portion of a water cooled shot sleeve which receives a vertically moveable shot piston. The area of the gate opening is small relative to the area of the shot sleeve, and the lower die member defines an annular recess above the inner surface of the shot sleeve for entrapping a shell of pre-solidified metal. Air vent slots extend outwardly between the shot sleeve and lower die member and are closed by the shell of pre-solidified metal. In one embodiment, the shot sleeve and shot piston are non-circular or oval in cross-section; and the lower die member has a plurality of longitudinally space gate openings.

    摘要翻译: 纤维增强多孔预成型件定位在由上模具和下模构件限定的模腔内,并且下模构件限定在水冷喷枪套筒的中心部分中的至少一个门开口,其接收可垂直移动的喷射活塞。 门开口的面积相对于喷射套筒的面积小,并且下模具构件在喷射套筒的内表面上方限定一个环形凹槽,以捕获预固化的金属壳。 排气孔在喷射套筒和下模具构件之间向外延伸,并被预固化的金属壳体封闭。 在一个实施例中,喷射套筒和喷射活塞的横截面为非圆形或椭圆形; 并且下模构件具有多个纵向空间门开口。

    Vertical die casting press with indexing shot sleeves
    4.
    发明授权
    Vertical die casting press with indexing shot sleeves 失效
    立式压铸机,带分度镜筒

    公开(公告)号:US5660223A

    公开(公告)日:1997-08-26

    申请号:US559633

    申请日:1995-11-20

    CPC分类号: B22D19/0054 B22D17/12

    摘要: A vertical frame supports a rotary indexing table which carries a pair of vertical shot sleeves each having a shot piston with a depending shot piston rod. The shot sleeves are alternately indexed between a metal receiving station and a metal transfer station where a mold is supported above the table by a gate plate mounted on the frame. A hydraulic ejection cylinder and a substantially larger hydraulic shot cylinder are supported by the frame under the metal receiving and transfer stations, respectively, and laterally sliding couplings alternately connect the shot piston rods to the hydraulic cylinders when the table is indexed 180.degree.. Each shot piston and the gate plate form a biscuit which is retracted into the shot sleeve at the transfer station by the shot cylinder and is ejected at the receiving station by the ejection cylinder after the table and shot sleeves are indexed.

    摘要翻译: 垂直框架支撑旋转分度台,其携带一对垂直喷射套筒,每个垂直喷射套筒具有带有立体喷射活塞杆的喷射活塞。 喷射套筒在金属接收站和金属转运站之间交替地转位,其中通过安装在框架上的门板将模具支撑在桌子上方。 液压喷射缸和大体积较大的液压喷射缸分别由金属接收和转移站下方的框架支撑,当台面被分度180°时,横向滑动联轴器将喷射活塞杆交替地连接到液压缸。 每个喷射活塞和闸板形成饼干,该饼干在转运站处被喷射筒缩回到喷射套筒中,并且在台面和喷射套筒被分度之后由喷射滚筒在接收站处喷射。

    Vertical die casting press and method of producing die cast metal parts
    5.
    发明授权
    Vertical die casting press and method of producing die cast metal parts 有权
    立式压铸机及压铸金属件的生产方法

    公开(公告)号:US06913062B2

    公开(公告)日:2005-07-05

    申请号:US10858266

    申请日:2004-06-01

    摘要: A fiber reinforced porous preform is positioned within a die cavity defined by upper and lower die members, and the lower die member defines at least one gate opening in the center portion of a water cooled shot sleeve which receives a vertically moveable shot piston. The area of the gate opening is small relative to the area of the shot sleeve, and the lower die member defines an annular recess above the inner surface of the shot sleeve for entrapping a shell of pre-solidified metal. Air vent slots extend outwardly between the shot sleeve and lower die member and are closed by the shell of pre-solidified metal. In one embodiment, the shot sleeve and shot piston are non-circular or oval in cross-section; and the lower die member has a plurality of longitudinally space gate openings.

    摘要翻译: 纤维增强多孔预成型件定位在由上模具和下模构件限定的模腔内,并且下模构件限定在水冷喷枪套筒的中心部分中的至少一个闸门开口,其接收可垂直移动的喷射活塞。 门开口的面积相对于喷射套筒的面积小,并且下模具构件在喷射套筒的内表面上方限定一个环形凹槽,以捕获预固化的金属壳。 排气孔在喷射套筒和下模具构件之间向外延伸,并被预固化的金属壳体封闭。 在一个实施例中,喷射套筒和喷射活塞的横截面为非圆形或椭圆形; 并且下模构件具有多个纵向空间门开口。

    Semi-solid molding method
    6.
    发明授权

    公开(公告)号:US06808004B2

    公开(公告)日:2004-10-26

    申请号:US10700004

    申请日:2003-11-03

    IPC分类号: B22D1712

    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.

    Vertical die casting press and method of operation
    7.
    发明授权
    Vertical die casting press and method of operation 失效
    立式压铸机及其操作方法

    公开(公告)号:US5429175A

    公开(公告)日:1995-07-04

    申请号:US84136

    申请日:1993-07-01

    IPC分类号: B22D17/12 B22D17/22 B22D17/26

    CPC分类号: B22D17/12

    摘要: A vertical die casting press includes a frame supporting a stationary lower horizontal platen which supports a base plate attached to a lower mold. An upper horizontal platen is supported for vertical movement between vertical columns by corner lift cylinders mounted on the lower platen, and the upper platen encloses hydraulic cylinders for actuating blades for releasably locking the upper platen to teeth on the vertical columns at a selected height. The upper platen carries a relatively movable intermediate platen which supports a base plate attached to an upper mold. After the upper platen is locked to the columns, a hydraulic load cell or cylinder within the upper platen clamps the intermediate platen and upper mold to the lower mold and lower platen. Molten die cast material is transferred through a horizontal ceramic cylinder from a ladle inlet to a vertical shot cylinder within the lower platen and lower mold, and a shot piston injects the material upwardly from the shot cylinder through runners and into cavities defined by the molds. The intermediate platen and lower platen enclose hydraulic cylinders for extending and retracting a set of rollers which engage tracks within the corresponding base plates to provide for quickly removing and replacing a set of upper and lower molds and corresponding base plates.

    摘要翻译: 立式压铸机包括支撑固定的下水平压板的框架,其支撑附接到下模具的底板。 支撑上水平压板,用于通过安装在下压板上的转角提升缸在垂直柱之间垂直运动,并且上压板包围用于致动叶片的液压缸,用于将上压板可释放地锁定在垂直柱上的选定高度的齿上。 上压板承载相对移动的中间压板,其支撑附接到上模的底板。 在上压板锁定到柱之后,上压板内的液压称重传感器或气缸将中间压板和上模夹紧到下模和下压板。 熔融的压铸材料通过水平陶瓷圆柱体从钢包入口转移到下压板和下模具内的垂直喷射缸,并且喷射活塞通过流道将喷射材料从喷射缸向上注入到由模具限定的空腔中。 中间压板和下压板包围液压缸,用于延伸和缩回一组辊,其接合相应基板内的轨道,以提供快速拆卸和更换一组上下模具和相应的底板。

    Semi-solid molding method
    8.
    发明授权
    Semi-solid molding method 有权
    半固态成型法

    公开(公告)号:US07299854B2

    公开(公告)日:2007-11-27

    申请号:US11373565

    申请日:2006-03-10

    IPC分类号: B22D17/12 B22D23/00 B22D25/00

    摘要: A metal alloy is heated to a molten state, and a grain refiner may be added. The molten alloy is poured into a shallow chamber of a 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 a globular, generally non-dendritic micro structure. An inner portion of the shallow 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. The shot piston may have internal grooves to provide a large heat transfer area for cooling water to absorb heat from the molten alloy.

    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。 将熔融合金倒入垂直压铸机的喷射套筒的浅室中,并在射出活塞的顶部。 当熔融合金冷却成具有球形,通常非树枝状微结构的半固体浆料时,将喷射套筒转移到喷射站。 浅浆料的内部部分通过活塞通过闸门向上注入模腔,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。 喷射活塞可以具有内部凹槽,以提供大的传热区域用于冷却水以从熔融合金吸收热量。

    Vertical die casting press and method of producing fiber reinforced die cast metal parts
    9.
    发明授权
    Vertical die casting press and method of producing fiber reinforced die cast metal parts 失效
    立式压铸机和生产纤维增强压铸金属件的方法

    公开(公告)号:US06467528B1

    公开(公告)日:2002-10-22

    申请号:US09860088

    申请日:2001-05-17

    IPC分类号: B22D1700

    摘要: A fiber reinforced porous preform is positioned within a die cavity defined by upper and lower die members, and the lower die member defines a gate opening in the center portion of a water cooled shot sleeve which receives a vertically moveable shot piston. The area of the gate opening is small relative to the area of the shot sleeve, and the lower die member defines an annular recess above the inner surface of the shot sleeve for entrapping a shell of pre-solidified metal. Air vent slots extend outwardly between the shot sleeve and lower die member and are closed by the shell of pre-solidified metal. The structure prevents pre-solidified metal and air from entering the die cavity.

    摘要翻译: 纤维增强多孔预成型件定位在由上模具和下模具构件限定的模腔内,下模构件在水冷喷枪套筒的中心部分中限定出一个闸门开口,该水冷却喷射套筒容纳可垂直移动的喷射活塞。 门开口的面积相对于喷射套筒的面积小,并且下模具构件在喷射套筒的内表面上方限定一个环形凹槽,以捕获预固化的金属壳。 排气孔在喷射套筒和下模具构件之间向外延伸,并被预固化的金属壳体封闭。 该结构防止预固化的金属和空气进入模腔。

    Production of copper die cast rotors for electric motors
    10.
    发明授权
    Production of copper die cast rotors for electric motors 失效
    生产用于电动马达的铜压铸转子

    公开(公告)号:US5332026A

    公开(公告)日:1994-07-26

    申请号:US951804

    申请日:1992-09-28

    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。