公开(公告)号：US5348070A

公开(公告)日：1994-09-20

申请号：US27359

申请日：1993-03-08

申请人： Kurt Fischer ,  Hans Leutwiler

发明人： Kurt Fischer ,  Hans Leutwiler

IPC分类号： B22C15/02 ,  B22C15/00 ,  B22C15/08 ,  B22C15/28

CPC分类号： B22C15/00 ,  B22C15/28

摘要： The invention relates to a process for the compression of molding sand in casting molds having a pattern plate with a pattern arranged therein. The molding sand is introduced loosely into the molding space located above the pattern plate and is thereafter fluidized to a final pressure of 20 bar maximum by means of a compressed-air surge acting on the molding sand followed by compression, by mechanical pressing. The process of the present invention provides a smooth pressure surge which is subdivided into at least a two part gradient in its pressure-rise time curve, so that the first part of the pressure-rise gradient takes place from 0.3 to 18 bar/sec to a pressure P.sub.1 and the second part has an increased pressure-rise gradient which takes place from 18 to 95 bar/sec. to a pressure P.sub.2 where P.sub.1

摘要翻译： 本发明涉及一种用于在具有布置在其中的图案的图案板的铸模中压缩型砂的方法。 将型砂松散地引入位于图案板上方的模制空间中，然后通过作用在型砂上的压缩空气浪涌，然后通过机械压制而压缩，将其流化至最大压力为20巴。 本发明的方法提供平滑的压力浪涌，其在其上升时间曲线中被细分为至少两部分梯度，使得压力升高梯度的第一部分从0.3至18巴/秒发生到 压力P1和第二部分具有增加的压力梯度，其发生在18至95巴/秒。 压力P2，其中P1

公开(公告)号：US4915159A

公开(公告)日：1990-04-10

申请号：US205436

申请日：1988-06-10

申请人： Norbert Damm ,  Ernst Schmitt ,  Thomas Parr

发明人： Norbert Damm ,  Ernst Schmitt ,  Thomas Parr

IPC分类号： B22C15/02 ,  B22C15/08 ,  B22C15/14

CPC分类号： B22C15/08

摘要： To permit close matching of compaction pressure being applied to foundry mold making material, such as foundry sand, to the shape of a mold pattern (2) in a pattern box (3, 4), individual fluid pressure is applied to a plurality of press plungers (7) located on a pressure plate which is moved towards the sand in the mold box at a high rate of speed, the press plungers being biassed by fluid pressure to have a maximum difference (.DELTA.H) in stroke of penetration depth of at least 30% of the height (H) of the mold box; individual valves (14) can apply compressed air to individual cylinders under control, for example, of a microprocessor; the valves can be located in a matrix arrangement (FIG. 3). The method and apparatus can be used in combination with explosion or pressure impulse compaction and fluidizing of the foundry sand.

摘要翻译： 为了允许将紧密匹配的压实压力施加到诸如铸造砂的铸造模具制造材料到图案盒（3,4）中的模具图案（2）的形状，将单独的流体压力施加到多个压力机 柱塞（7）位于压力板上，该压板以高速度移动到模具箱中的沙子上，压力机柱塞受到流体压力的偏压，以使得穿入深度的行程具有最大差异（DELTA H） 模具盒高度（H）的至少30％; 单个阀（14）可以将压缩空气施加到例如微处理器的控制下的各个气缸; 阀可以位于矩阵排列（图3）中。 该方法和装置可与爆炸或压力冲击压实和铸造砂流化结合使用。

公开(公告)号：US4860817A

公开(公告)日：1989-08-29

申请号：US292775

申请日：1989-01-03

申请人： Alfred Joern ,  Wendelin Weimann

发明人： Alfred Joern ,  Wendelin Weimann

IPC分类号： B22C15/02 ,  B22C15/00

CPC分类号： B22C15/00

摘要： An apparatus for compacting granular materials comprises a rack having a pedestal for supporting the mold which contains the granular material to be compacted. A compacting mechanism for applying a compacting force to the granular material is mounted for vertical movement above the mold and is provided with a seal for sealing the mold when applying a compacting force to the granular molding material.

摘要翻译： 用于压实颗粒材料的装置包括具有用于支撑模具的基座的齿条，其包含要压实的颗粒材料。 安装用于对颗粒材料施加压实力的压实机构用于在模具上方垂直运动，并且在将压实力施加到颗粒成型材料时设置有用于密封模具的密封件。

公开(公告)号：US4828007A

公开(公告)日：1989-05-09

申请号：US279505

申请日：1988-12-05

申请人： Kurt Fischer ,  Hans Leutwiler

发明人： Kurt Fischer ,  Hans Leutwiler

IPC分类号： B22C9/02 ,  B22C15/00 ,  B22C15/02 ,  B22C15/08 ,  B22C15/24

CPC分类号： B22C15/00

摘要： Granular material is selectively compressed in a molding box by a series of pressure surges applied over the granular material.

摘要翻译： 颗粒材料通过施加在颗粒材料上的一系列压力冲击在成型箱中选择性地压缩。

公开(公告)号：US4442884A

公开(公告)日：1984-04-17

申请号：US416967

申请日：1982-09-13

申请人： Robert Kunsch

发明人： Robert Kunsch

IPC分类号： B22C1/00 ,  B22C5/00 ,  G01N3/02 ,  G01N3/24 ,  B22D46/00 ,  B22C15/02 ,  B22C19/00

CPC分类号： B22C5/00 ,  G01N3/24 ,  G01N2203/0206 ,  G01N2203/0218 ,  G01N2203/0248 ,  G01N2203/0284

摘要： Process for automatically measuring the shearing resistance of green sand used in a repetitive sand molding process using pattern plates, and for using the measurements in such a way as to modulate the various parameters of the process in which a measuring ring is placed upon one of the pattern plates. The measuring ring has an opening and stress gauges fastened within narrowed sections of said measuring ring on either side of said opening. The gauges are connected electrically through the pattern plate to an electronic measurement and operation device within which various physical measurements are computed, including the shearing resistance of the test sample of sand compressed within said opening. The result of said measurements is processed by a computer to determine the magnitude of modulations to be made, particularly that pertaining to the replenishment of agglomerating agents for the recycled sand.

摘要翻译： 用于自动测量在使用图案板的重复砂型模制过程中使用的绿砂的抗剪切性的方法，以及用于以这样的方式使用测量，以便将测量环的各个参数调节到其中一个 图案板。 测量环具有开口和紧固在所述开口的任一侧的所述测量环的狭窄部分内的应力计。 计量器通过图案板电连接到电子测量和操作装置，其中计算各种物理测量值，包括在所述开口内压缩的砂的测试样品的剪切阻力。 所述测量的结果由计算机处理以确定要进行的调节的大小，特别是涉及再循环砂的附聚剂的补充。

公开(公告)号：US4262730A

公开(公告)日：1981-04-21

申请号：US113510

申请日：1980-01-21

申请人： Earl W. Powers

发明人： Earl W. Powers

IPC分类号： B22C5/12 ,  B22C15/08 ,  B22C19/00 ,  B22C25/00 ,  B22C15/02 ,  B22C11/02

CPC分类号： B22C19/00 ,  B22C15/08 ,  B22C25/00 ,  B22C5/12

摘要： The specification discloses a strike off apparatus for leveling and compacting mounds of sand extending above the upper edges of open-top mold boxes of varying heights carried in succession along a pathway. A pair of pivotally supported rollers extend across the pathway. A sensor determines the height of a sand mound in a mold box before it reaches the rollers. An elevating mechanism responsive to the sensor adjusts the rollers to a height so that they level and compact the sand mound as the mold box is carried thereunder. A control system including electrical and hydraulic circuits is provided for automatically controlling the cyclical operation of the apparatus.

摘要翻译： 该说明书公开了一种用于使沿着路径连续承载的不同高度的敞开式模具箱的上边缘上方延伸的沙子的平整和压实砂的装置。 一对可枢转地支撑的辊子跨过通道延伸。 传感器确定模具盒中的沙丘到达滚筒之前的高度。 响应于传感器的升降机构将辊子调整到一个高度，使得当模具盒被运送到其上时，它们使砂土平整并压实。 提供了包括电气和液压回路的控制系统，用于自动控制装置的循环操作。

公开(公告)号：US4210194A

公开(公告)日：1980-07-01

申请号：US842724

申请日：1977-10-17

申请人： Ronald A. Cina ,  Albert D. Kluge

发明人： Ronald A. Cina ,  Albert D. Kluge

IPC分类号： B22C9/12 ,  B22C15/28 ,  B22C15/02

CPC分类号： B22C9/123 ,  B22C15/28

摘要： An automatic method for producing molds using chemically bonded sands which consists of a molding machine adapted to produce either honeycomb (horizontally parted) or controlled contour (vertically parted) mold elements. The molding machine is provided with a venturi-type blow head having dual blow valves and an integral air chamber. Carriage means are provided to selectively move a sand magazine and catalyst manifold between their respective fill and work stations on the molding machine. A hydraulically actuated mold receiver, trunnion rollover and shuttle car means are provided to selectively receive the completed molds from the molding machine and transport them to associated mold finishing and closing means. A hydraulically actuated pattern clamp table is provided with an enclosed pattern and stripper pin stool having a separate hydraulically actuated stripper pin plate. The enclosed pattern and stripper pin stool is an integral catalyst exhaust manifold. A mold squeeze method is provided to selectively permit compression of the sand mold prior to the gassing of the chemically bonded sand mold.

摘要翻译： 一种使用化学粘合砂制造模具的自动方法，该方法由适于产生蜂窝（水平分割）或受控轮廓（垂直分割）模具元件的成型机组成）。 该成型机设置有具有双吹气阀和整体气室的文丘里型吹头。 提供支架装置以选择性地将砂仓和催化剂歧管移动在成型机上的它们各自的填充和工作站之间。 提供液压致动的模具接收器，耳轴翻转和穿梭车装置以选择性地从成型机接收完成的模具并将它们运送到相关联的模具精加工和关闭装置。 液压致动图案夹具台设有封闭图案和剥离器销凳，其具有单独的液压致动剥离销板。 封闭图案和脱模针脚是整体式催化剂排气歧管。 提供了一种模压挤压方法，用于选择性地允许在化学粘合的砂模的放气之前对砂模进行压缩。

公开(公告)号：US4037642A

公开(公告)日：1977-07-26

申请号：US608337

申请日：1975-08-27

申请人： Marius Gunnergaard

发明人： Marius Gunnergaard

IPC分类号： B22D46/00 ,  B22C11/00 ,  B22C11/10 ,  B22C15/02 ,  B22D33/00 ,  B22D47/00

CPC分类号： B22D33/005

摘要： In a casting apparatus using a mould which comprises a horizontal series of identical mould parts and presents at least one casting cavity at each joint between successive mould parts, the mould is advanced stepwise through a pouring station with a length of step that equals a multiple of the thickness or axial length of each mould part.

摘要翻译： 在使用包括水平系列相同的模具部件并且在相继的模具部件之间的每个接头处呈现至少一个铸造腔的模具的铸造装置中，模具通过浇注站逐步前进，其长度等于 每个模具部件的厚度或轴向长度。

公开(公告)号：US4036277A

公开(公告)日：1977-07-19

申请号：US623411

申请日：1975-10-17

申请人： Kent Woonton ,  Jeffrey R. Short, III ,  Kenneth N. Roach

发明人： Kent Woonton ,  Jeffrey R. Short, III ,  Kenneth N. Roach

IPC分类号： B22C7/06 ,  B22C9/12 ,  B22C15/02 ,  B22C15/08

CPC分类号： B22C9/123 ,  B22C7/062

摘要： In the production of foundry mold parts by the method described in U.S. Pat. No. 3,739,834, the production rate is increased by employing a foundry sand mix which can be cured by means of a gaseous curing agent and carrying out curing of the pressed mold part while the mold part is supported at the pressing station.

摘要翻译： 在通过美国专利No. 通过使用可以通过气态固化剂固化的铸造砂混合物并且在模具部分被支撑在挤压工位的同时进行压制模具部件的固化来提高生产率。

公开(公告)号：US4000235A

公开(公告)日：1976-12-28

申请号：US577064

申请日：1975-05-13

申请人： Hendrik Van Leemput

发明人： Hendrik Van Leemput

IPC分类号： B30B11/00 ,  B22F3/04 ,  B22F3/12 ,  B29C33/00 ,  B29C43/00 ,  B29C43/02 ,  B29C43/10 ,  B29C43/12 ,  B29C43/14 ,  B29C43/34 ,  B29C43/36 ,  B29C43/50 ,  B29C43/56 ,  B29C43/58 ,  B22C15/02

CPC分类号： B22F3/1258 ,  B22F3/04 ,  B22F3/1216

摘要： An improved method for isostatically molding an elongated, cylindrical article from a powdered material. In accordance with the improved method, a mold, containing powdered material, is placed within a two-piece, perforated canister. The two pieces which form the canister are then resiliently clamped together. Thereafter, in accordance with conventional practice, the canister and the mold containing the powdered material are subjected to an isostatic pressing process. During the decompression step of this process, the mold may radially expand by pressing outwardly against the two-piece canister and thereby causing radial movement of the two-piece canister.By the use of this improved process, it has been found that long, slender rods can be isostatically molded whereas many prior art attempts to mold such rods have not been successful.