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公开(公告)号：US08672017B2
公开(公告)日：2014-03-18
申请号：US13190070
申请日：2011-07-25
申请人： Hiroyasu Makino , Ramrattan Sam
发明人： Hiroyasu Makino , Ramrattan Sam
IPC分类号： B22C9/02
摘要： The present invention provides a method for green sand molding that prevents a bad casting by producing a mold that does not have a brittle surface. The method has the steps of filling the green sand into a flask while fluidizing the green sand by aeration at a pressure between 0.05 and 0.18 MPa, and squeezing the green sand that has been filled in the flask, wherein a mold is produced so that the friability of the mold is 10 or less. The friability is calculated by the following steps: putting the mold in a rotating cylindrical sieve that has a diameter of 177.8 min and. USA, sieve size No. 8, rotating the cylindrical sieve at 57 rpm for 60 seconds, dividing the weight of the sand that has passed through the sieve by the weight of the sand and multiplying the quotient by 100.
摘要翻译： 本发明提供了一种通过生产不具有脆性表面的模具来防止不良铸造的生砂砂铸造的方法。 该方法具有以下步骤：将生砂填充到烧瓶中，同时通过曝气在0.05至0.18MPa的压力下流化绿砂，并挤压已经填充在烧瓶中的生砂，其中制造模具，使得 模具的脆性为10以下。 通过以下步骤计算脆性：将模具放入直径为177.8分钟的旋转圆柱形筛子中。 USA，筛8号，将圆筒筛以57rpm旋转60秒，将通过筛子的砂的重量除以砂的重量，并将商乘以100。
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公开(公告)号：US5601777A
公开(公告)日：1997-02-11
申请号：US327321
申请日：1994-10-21
申请人： Kurt Fischer , Hans Leutwiler
发明人： Kurt Fischer , Hans Leutwiler
摘要： A process for compacting foundry molding material is proposed, the molding material being introduced into a molding device with a pattern plate with a pattern frame and a molding and filing frame mounted on it, by means of a compressed gas, the compressed gas being used at least for precompaction, the pressure surge used for the precompaction being released into the molding floor with a low, then a higher pressure gradient.
摘要翻译： 提出了一种用于压制铸造成型材料的方法，将成型材料引入具有图案板的模制装置的模制装置中，并且通过压缩气体将压缩气体用于压缩气体 至少对于预压缩，用于预压缩的压力波动以低的压力梯度释放到成型地板中。
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公开(公告)号：US5476136A
公开(公告)日：1995-12-19
申请号：US330011
申请日：1994-10-27
申请人： Hans Leutwiler , Kurt Fischer
发明人： Hans Leutwiler , Kurt Fischer
摘要： The device comprises a pressure housing for storing a gaseous medium under pressure, a pattern plate for supporting a pattern, and a molding box of height H associated with the pattern plate and defining therewith a molding space for receiving the granular molding material to be compacted. A valve separates the pressure housing from the molding space, and selectively communicates the gaseous medium in the pressure housing with the molding space for compacting the granular molding material. A mechanical compaction plate is mounted in the molding space and defines with the pattern plate a volume of dead space. An adjustment element varies the volume of the dead space.
摘要翻译： 该装置包括用于存储压力下的气体介质的压力壳体，用于支撑图案的图案板和与图案板相关联的高度为H的模制盒，并且限定用于接收要压实的颗粒成型材料的模制空间。 阀将压力壳体与模制空间分开，并且将压力壳体中的气态介质与用于压缩颗粒成型材料的模制空间选择性地连通。 机械压实板安装在模制空间中并且与模板一起限定一定数量的死空间。 调节元件改变死区的体积。
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公开(公告)号：US5261479A
公开(公告)日：1993-11-16
申请号：US962137
申请日：1992-10-16
申请人： Ernst O. Kruse , Kurt Fischer
发明人： Ernst O. Kruse , Kurt Fischer
CPC分类号： B22C15/00
摘要： An apparatus for producing sand mold employing compressed air comprises a sand molding apparatus for use in making sand molds by employing compressed air. The apparatus includes, in the preferred embodiment, a pattern plate carrier having a top surface for supporting a pattern plate thereon. A molding box is positioned on the top surface of the pattern plate carrier and surrounds the pattern plate so as to define between the pattern plate and the interior surface of the molding box a peripheral area on the top surface of the carrier. Vents are provided on either the peripheral area define above or the pattern plate or both and extend around the pattern plate for allowing compressed air which is injected into the molding box during compression of the molding sand to escape on the pattern side of the molding box. A chamber is defined within the carrier beneath the pattern plate and is communicated with the vent structure by means of bores. The chamber is thereafter communicated with a conduit for removing the compressed air to a remote location.
摘要翻译： 用于生产使用压缩空气的砂模的设备包括用于通过使用压缩空气制造砂模的砂模设备。 在优选实施例中，该装置包括具有用于在其上支撑图案板的顶表面的图案板载体。 成型箱定位在图案板载体的顶表面上并围绕图案板，以在模板和模制箱的内表面之间限定载体顶表面上的周边区域。 通风口设置在上面限定的外围区域或图案板或两者上，并且围绕图案板延伸，用于允许在模型箱压缩期间注射到模制箱中的压缩空气在模制盒的图案侧上逸出。 腔室在图案板下面的载体内限定，并且通过孔与通气结构连通。 然后，该腔室与用于将压缩空气移除到远程位置的导管连通。
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公开(公告)号：US5024161A
公开(公告)日：1991-06-18
申请号：US149975
申请日：1988-01-26
申请人： Kurt Fischer , Georges Louys
发明人： Kurt Fischer , Georges Louys
摘要： A forming apparatus for the manufacture of casting molds made from sand or another moldable mixture by means of a pressure shock wave from a gaseous medium is proposed. The forming apparatus comprises a structural frame constructed from columns, cross beams, and longitudinal beams, a forming combination within the structural frame, and a pressure vessel for producing the pressure shock wave. The pressure vessel is located above the forming combination and is supported by the cross beams of the structural frame. The forming apparatus also includes a filling vessel containing a supply of sand or other moldable mixture for delivery to the forming combination. The filling vessel is located above the forming combination and is supported by the cross beams of the structural frame is such manner that the topmost edges of these cross beams lie in substantially the same plane as the bottom of the filling vessel. This arrangement results in the center of gravity of the apparatus lying within the range of the forming combination. With such a forming apparatus, the pressure vessel can be exchanged for other pressure vessels of even larger size without incurring major expenses.
摘要翻译： 提出了一种用于通过来自气体介质的压力冲击波制造由砂或另一可模制混合物制成的铸模的成型装置。 成形装置包括由柱，横梁和纵梁构成的结构框架，结构框架内的成形组合和用于产生压力冲击波的压力容器。 压力容器位于成形组合的上方并由结构框架的横梁支撑。 成型设备还包括容纳供应砂或其它可成型混合物以用于输送到成形组合的填充容器。 填充容器位于成形组合之上，并且由结构框架的横梁支撑，使得这些横梁的最顶边处于与填充容器的底部基本相同的平面上。 这种布置导致装置的重心位于成形组合的范围内。 通过这样的成形装置，可以将压力容器更换为更大尺寸的其他压力容器，而不会产生重大的费用。
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公开(公告)号：US4592406A
公开(公告)日：1986-06-03
申请号：US607116
申请日：1984-05-03
申请人： Norbert Damm
发明人： Norbert Damm
CPC分类号： B22C15/00
摘要： In an apparatus for the compaction of foundry sand by the impact of pressurized gas on the foundry sand as filled into a flask over a pattern plate with a pattern therein, a specially designed diaphragm is used to get an even and constant hardness of the mold in every horizontal plane thereof and/or to put an end to the formation of shear cracks in the mold between different parts of the volume of the sand. This diaphragm is placed over the so far uncompacted surface of the foundry sand and it has a permeability to gas varying with the height of the sand to be compacted so that such permeability is less in the parts with high and/or plateau-like pattern contours than in parts where there is no pattern on the pattern plate.
摘要翻译： 在用于通过加压气体对铸造砂的冲击的铸造砂的压实的装置中，通过在其中具有图案的图案板上填充到烧瓶中，使用专门设计的膜来获得模具的均匀且恒定的硬度 其每个水平面和/或结束在砂体积的不同部分之间在模具中形成剪切裂纹。 该隔膜放置在铸造砂的迄今未压实的表面上，并且其具有随待压实的砂的高度变化的气体的渗透性，使得在具有高和/或平台状图案轮廓的部分中这种渗透性较小 比在图案板上没有图案的部分。
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公开(公告)号：US4425957A
公开(公告)日：1984-01-17
申请号：US341011
申请日：1982-01-20
申请人： Kurt Fischer , Franz Mueller
发明人： Kurt Fischer , Franz Mueller
CPC分类号： B22C15/00
摘要： In a molding machine for producing foundry sand molds the sand is compressed or packed by means of a pressure wave acting on the sand surface produced by explosive combustion of a mixture of fuel and air. The dosing of the fuel to be burned is carried out by a pressure regulated supply pipe, in which a dosing container is filled with fuel, e.g., gas, up to an exactly defined excess pressure. This fuel or gas is thereafter fed to the combustion chamber under relief of the gas pressure in the dosing container down to a lower pressure level.
摘要翻译： 在用于生产铸造砂模的成型机中，砂通过作用在由燃料和空气的混合物的爆炸性燃烧产生的砂表面上的压力波压缩或包装。 要燃烧的燃料的计量是通过压力调节的供给管进行的，其中定量给料容器充满燃料，例如气体，直到精确限定的过量压力。 此后，该燃料或气体在释放给料容器内的气体压力的同时进入燃烧室，直到较低的压力水平。
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公开(公告)号：US3233291A
公开(公告)日：1966-02-08
申请号：US22693062
申请日：1962-09-28
申请人： OSBORN MFG CO
发明人： MILLER LEON F , ELLMS ROBERT W
CPC分类号： H01C1/1413 , B22C15/00 , B22C15/12 , H01B1/04
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公开(公告)号：US3170202A
公开(公告)日：1965-02-23
申请号：US21863962
申请日：1962-08-22
IPC分类号： B22C15/00
CPC分类号： B22C15/00 , Y10T29/49806
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公开(公告)号：US1083546A
公开(公告)日：1914-01-06
申请号：US1912728433
申请日：1912-10-29
发明人： MACDONALD HARRY P
CPC分类号： B22C15/00
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