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公开(公告)号：US4113001A
公开(公告)日：1978-09-12
申请号：US744095
申请日：1976-11-22
申请人： John Workman
发明人： John Workman
摘要： Moulding apparatus comprises a mould box support structure having spaced support members for receiving and supporting lug members formed at opposite ends of a mould box. The mould box is formed in two separable parts each incorporating at opposite ends thereof a lug member having a substantially semi-circular outside profile so that when the mould box parts are abutted the lug members of one box part register with the lug members of the other box part to provide a substantially circular surface which acts as a bearing for the mould box so that the box can be rotated on the support structure for convenience of handling. In one form the mould box is for use with the V-Process of moulding and suction is applied to the chambers within the walls of the mould box parts via conduits extending through the lug members of respective box parts. In one form the support structure includes a circular table which is indexed so that a mould box is sequentially processed through several processing stations.
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公开(公告)号：US4129164A
公开(公告)日：1978-12-12
申请号：US762184
申请日：1977-01-24
申请人： Kiyoshige Torikai
发明人： Kiyoshige Torikai
摘要： In a method for reduced-pressure mould production, a plurality of mould flasks are simultaneously evacuated by evacuating means, and in which production of the moulds is carried out while moving the mould flasks sequentially through a mould shaping position, a pouring position and a mould disintegrating position. Evacuation is effected by first evacuating means during a period from the beginning of mould shaping to the beginning of mould pouring and a period after pouring, and evacuation is effected more strongly by second evacuating means during the period of pouring.
摘要翻译： 在减压模具生产方法中，多个模具烧瓶通过排气装置同时排空，并且在模具的生产顺序地通过模具成形位置，倾倒位置和模具 分解位置 在模具成型开始到浇注开始期间和浇注之后的期间，通过第一抽空装置进行疏散，并且在浇注期间通过第二抽空装置更强烈地进行抽真空。
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公开(公告)号：US5896913A
公开(公告)日：1999-04-27
申请号：US959359
申请日：1997-10-28
申请人： Daniel B. Grandi
发明人： Daniel B. Grandi
摘要： A paper receptacle is disclosed designed to improve the investment casting process in vacuum machines. The paper acts as both a vacuum liner and splash guard. It is fabricated as a perforated paper sheet having hooks, which is inserted in a cylindrical manner into casting flasks in order to provide a liner for congealing islands of solid investment plaster onto the surface of the casting flask resulting from the plaster slurry entering the holes; and a splash guard for investment slurry. After burnout, the liner facilitates the production of high-density metal porosity free castings at lower temperatures and in less time and with easy break away of investment plaster from the flask. The splash guard feature eliminates congealed slurry cleanup and prevents vacuum slurry boilover. The space saving resulting from this prevention enables more wax modules to be inserted into flasks increasing production.
摘要翻译： 公开了一种设计用于改善真空机中熔模铸造工艺的纸容器。 该纸充当真空衬管和防溅罩。 它被制造成具有钩的穿孔纸，其以圆柱形方式插入铸瓶中，以便提供用于将固体投资石膏岛凝结在由石膏浆料进入孔的铸造表面上的衬垫; 和投资浆料的防溅板。 在烧尽之后，衬垫有助于在较低的温度和更短的时间内生产高密度金属孔隙度的铸件，并且容易地从烧瓶中分离投资石膏。 防溅功能消除了凝结的浆料清理，并防止真空浆料沸腾。 由此预防的空间节省使得更多的蜡模块能够插入烧瓶中，从而增加生产成本。
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公开(公告)号：US20180029410A1
公开(公告)日：2018-02-01
申请号：US15725990
申请日：2017-10-05
申请人： Rail 1520 IP Ltd.
发明人： Vaughn W. Makary
CPC分类号： B60B17/0006 , B22C9/03 , B22C9/086 , B22C9/28 , B22C21/01 , B22D15/005 , B60B17/0055
摘要： A cast metal railroad car wheel includes a hub section, a tread section, and an uninterrupted annular web extending between and supporting the tread section on the hub section. The web includes a disk-shaped surface that is continuously concave and that does not include a reversely curved portion. A V-process casting process casts railroad wheels using a vacuum-process casting mold with opposing halves each partially filled with unbonded sand and sand-retaining-plastic film and a vacuum application port and that, when positioned together with the unbonded sand held to shape by vacuum and the film, define a cavity shaped to form a railroad car wheel. The V-process includes feeding molten metal into the cavity, cooling the molten metal, and releasing a vacuum to cause the sand to fall away from the railroad car wheel.
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公开(公告)号：US3952793A
公开(公告)日：1976-04-27
申请号：US527368
申请日：1974-11-26
申请人： Itsuo Hijikata , Hideto Terada
发明人： Itsuo Hijikata , Hideto Terada
CPC分类号： H01P11/002 , B22C21/01 , B22C9/03 , B65H54/84 , B65H2701/31
摘要： Moulding flask adapted to be used in a process for forming a mould comprising steps of disposing, at the opening of the moulding flask, a pattern having a shield membrane of synthetic resin on the outer surface thereof, filling the space defined between the moulding flask and the pattern with particulate filler material such as sand, and applying negative pressure to the filler material so that the filler material is subjected to an external pressure to make a mould, said moulding flask having at least one surface on an intermediate partition surface formed by an impervious resilient membrane which is supported by a support member whereby, when the filler material is subjected to the negative pressure, the external pressure is applied to the resilient membrance which then presses the filler material so as to enhance compacting of the mould thus producing a strong and precise casting mould.
摘要翻译： 适于用于成形模具的成形烧瓶包括以下步骤：在模型烧瓶的开口处设置在其外表面上具有合成树脂屏蔽膜的图案，填充模型瓶和 具有诸如砂等颗粒填料的图案，并且向填充材料施加负压，使得填充材料经受外部压力以制成模具，所述模制烧瓶在由中间分隔表面形成的至少一个表面上形成 不透水的弹性膜，其由支撑构件支撑，由此当填充材料承受负压时，将外部压力施加到弹性膜上，弹性膜然后挤压填充材料，以便增强模具的压实，从而产生强的 和精密铸模。
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6.发明授权
公开(公告)号：US5219014A
公开(公告)日：1993-06-15
申请号：US824075
申请日：1992-01-23
申请人： Jean-Jacques Mazeran
发明人： Jean-Jacques Mazeran
CPC分类号： B22C9/03
摘要： The invention concerns a device and method for continuous fabricating of foundry molds from granular material.The device consists of a frame (10) with lights (11) supporting through swivels (31) caissons (30, 40) with large partitions (42) provided with grooves (421) into which pattern-plates (60) are inserted, and with small partitions (43) provided with suction holes (431); the caissons being connected to a vacuum source through flexible hoses controlled by solenoid valves; the whole assembly being placed after heat-forming of a polymer film (92) around a grid (70) with a hollow rib (74) and filter (741) connected to a vacuum source through a connector (75).
摘要翻译： 本发明涉及一种用于从颗粒材料连续制造铸造模具的装置和方法。 该装置由具有通过旋转件（31）支撑的灯（11）的框架（10），沉箱（30,40）具有设置有插入有图案板（60）的凹槽（421）的大分隔件（42），以及 具有设置有吸孔（431）的小隔板（43）; 沉箱通过由电磁阀控制的柔性软管连接到真空源; 在通过连接器（75）连接到真空源的中空肋（74）和过滤器（741）围绕格栅（70）热成形聚合物膜（92）之后放置整个组件。
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公开(公告)号：US3970139A
公开(公告)日：1976-07-20
申请号：US538794
申请日：1975-01-06
申请人： Herbert Grolla
发明人： Herbert Grolla
摘要： A vacuum control valving apparatus for a vacuum sealed molding apparatus. The control valving apparatus is located between a pair of mold members, one stacked upon the other, and a mating surface on a rail conveyor truck. The valving apparatus provides a controlled communication of a first vacuum source to an evacuation chamber on the mold members. The valving arrangement also effects a connection of the evacuation chambers on each of the mold members to a second vacuum source connection of the rail conveyor truck when the mold members are vertically stacked one on the other and in the appropriate location on the rail conveyor truck.
摘要翻译： 一种用于真空密封成型设备的真空控制阀装置。 控制阀装置位于一对模具构件之间，一对堆叠在一起的模具构件和轨道输送车上的配合表面。 阀装置提供第一真空源与模具构件上的抽空室的受控连通。 当模具构件彼此垂直地堆叠在轨道输送车上的适当位置时，阀装置还实现了每个模具构件上的排气室与轨道输送车的第二真空源连接的连接。
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公开(公告)号：US3872915A
公开(公告)日：1975-03-25
申请号：US29410472
申请日：1972-10-02
申请人： AKITA KK
发明人： NAKATA KUNII , HONDO MASAO
CPC分类号： B22C9/03
摘要： A mold producing apparatus comprising a pattern, at least one shield member, at least one flask, a filler material in particulate form filled in said flask, and means for evacuating the interior of said flask, with the flask having mounted therein at least one evacuating line.
摘要翻译： 一种模具制造装置，包括图案，至少一个屏蔽构件，至少一个烧瓶，填充在所述烧瓶中的颗粒形式的填充材料，以及用于抽出所述烧瓶内部的装置，所述烧瓶已安装在其中至少一个抽空 线。
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