公开(公告)号：US06554054B2

公开(公告)日：2003-04-29

申请号：US09753676

申请日：2001-01-04

申请人： Charles H. Noble

发明人： Charles H. Noble

IPC分类号： B22D1310

CPC分类号： B22D13/102 ,  B22C9/22

摘要： A method and apparatus for use in centrifugal casting of metal articles forms a compacted lining of a particulate refractory material on an inner surface of the mold. An amount of a dry binderless particulate refractory material is dispensed on the inner surface of a rotating mold body to form a centrifugally densified layer. A plowing tool is brought into contact with a layer of refractory material while continuously rotating the mold body to plow and compact the layer of particles. The tool is oriented at an angle with respect to the direction of travel of the layer of particles to penetrate the layer and compact the particles toward the inner surface of the mold body. The combination of the centrifugal force and the mechanical compaction of the particles results in a dense, air impervious, compacted mold lining having interlocked particles and voids between the particles that are not interconnected with an adjacent void. The mold is formed with at least one air inlet and at least one air outlet communicating with an inner surface of the mold. A porous lining is formed on the inner surface of the mold in communication with the air inlet and the air outlet. Rotation of the mold draws air through the inlet and the porous lining and out through the outlet to cool the lining during casting.

摘要翻译： 用于金属制品的离心铸造的方法和装置在模具的内表面上形成颗粒状耐火材料的压实衬里。 将一定数量的无干粘合剂颗粒耐火材料分配在旋转模具体的内表面上以形成离心致密层。 使犁耕工具与耐火材料层接触，同时连续旋转模体以犁压并压实颗粒层。 工具相对于颗粒层的行进方向成一角度以穿透该层并将颗粒压向模体的内表面。 颗粒的离心力和机械压实的结合产生致密的，不透气的，压实的模具衬里，其在颗粒之间具有互锁的颗粒和空隙，其不与相邻的空隙互连。 模具形成有至少一个空气入口和与模具的内表面连通的至少一个空气出口。 在模具的内表面上形成多孔衬里，与空气入口和空气出口连通。 模具的旋转通过入口和多孔衬里吸入空气，并通过出口排出，以在铸造过程中冷却衬里。

公开(公告)号：US06932143B2

公开(公告)日：2005-08-23

申请号：US10815945

申请日：2004-04-02

申请人： Charles H. Noble

发明人： Charles H. Noble

IPC分类号： B22D13/02

CPC分类号： B22D13/02

摘要： A method and apparatus for centrifugal casting of metal articles uses a rotating mold body that can be pivoted from a vertical orientation to a horizontal orientation during the centrifugal casting of the metal article. The resulting metal article has a closed end and an open end defining a hollow cavity. The mold body has a closed end that is oriented in a vertical position with the longitudinal axis extending vertically. While the mold body is rotated, an amount of molten metal is introduced into the mold body so that the molten metal is distributed along the closed end of the mold body. In one embodiment, the bottom end of the mold body has a frustoconical shaped surface defining the mold cavity. The mold body is then pivoted to a horizontal position while continuously rotating to distribute and cast the metal against the inner surface of the mold body. In one embodiment, the mold body has a refractory lining of a compacted refractory material. The refractory material is introduced into the rotating mold and a blade is contacted with the layer of the refractory material formed on the inner surface while the mold is rotated in a first direction to compact and densify the layer of particles with a flat end of the blade. The rotation of the mold body is then reversed and the sharp edge of the blade is contacted with the compacted layer to shape and contour the mold lining.

摘要翻译： 用于金属制品的离心铸造的方法和装置使用旋转模具本体，其在金属制品的离心铸造期间可以从垂直取向枢转到水平取向。 所得的金属制品具有限定中空腔的封闭端和开口端。 模具主体具有纵向轴向垂直延伸的垂直位置的封闭端。 当模具体旋转时，一定量的熔融金属被引入到模具体中，使得熔融金属沿着模体的封闭端部分布。 在一个实施例中，模体的底端具有限定模腔的截头圆锥形表面。 然后将模具主体枢转到水平位置，同时连续旋转以将金属分布和铸造抵靠模具体的内表面。 在一个实施例中，模具主体具有压实的耐火材料的耐火衬里。 将耐火材料引入旋转模具中，并且使刀片与形成在内表面上的耐火材料层接触，同时模具沿着第一方向旋转以致压缩并使刀片层的平坦端部致密化 。 然后模具体的旋转被反转，并且刀片的锋利边缘与压实层接触以使模具衬里成形和轮廓。

公开(公告)号：US4628984A

公开(公告)日：1986-12-16

申请号：US802440

申请日：1985-11-27

申请人： Charles H. Noble

发明人： Charles H. Noble

IPC分类号： B22D13/10 ,  B22C13/00

CPC分类号： B22D13/104 ,  B22D13/102

摘要： Method and apparatus for establishing a layer of particulate material on at least a portion of the internal surface of a centrifugal casting mold by confining a quantity of the particulate material in a cavity, inserting the cavity into the mold, rotating the mold and the cavity at substantially the same rate adequate to apply substantial centrifugal force to the particulate material in the cavity, and opening the cavity to release the particulate material while continuing to rotate the mold and the cavity.

摘要翻译： 用于通过将一定数量的颗粒材料限定在空腔中，将空腔注入到模具中，使模具和空腔旋转的方式和设备，用于在离心铸模的内表面的至少一部分上建立颗粒材料层 基本相同的速率足以对空腔中的颗粒材料施加显着的离心力，并且打开空腔以释放颗粒材料，同时继续旋转模具和空腔。

公开(公告)号：US4124056A

公开(公告)日：1978-11-07

申请号：US778705

申请日：1977-03-17

申请人： Charles H. Noble

发明人： Charles H. Noble

IPC分类号： B22D13/02 ,  B22C9/06 ,  B22D13/10 ,  B22C3/00 ,  B22C13/10

CPC分类号： B22D13/102 ,  B22D13/108

摘要： Tubular metal articles are produced by centrifugal casting in a rotary metal mold lined by centrifugally distributing a quantity of a dry finely particulate free flowing refractory material on the active mold surface with the quantity being in excess of that required for the lining, densifying the layer by rotating the mold at a rate such that the refractory layer is subjected to centrifugal force adequate to establish an equivalent specific gravity of at least 7.5, determined by multiplying the actual specific gravity of the refractory material by the number of gravities of centrifugal force, contouring the densified layer and removing the excess refractory material, rotating the mold at the casting rate and then introducing the molten metal for casting while continuing to rotate the mold at least that rate. Articles so cast have relatively smooth outer surfaces which require only finish machining. The invention employs no additives and thus eliminates the need for venting the metal mold, provides a relatively thick lining of predetermined insulating capability so as to control the grain structure of the cast metal, eliminates the usual end cores, and allows the refractory material to be recycled. The invention is particularly useful for casting articles, such as cylinder liner blanks, from grey iron, such articles having an outer enlargement, typically a transverse outer end flange. Cast according to the invention, such articles have Type A graphite throughout the entire inner surface and for at least a substantial portion of the thickness of the flange or other outer enlargement.

摘要翻译： 管状金属制品通过在旋转金属模具中离心铸造制造，该金属模具通过在活性模具表面上离心分配一定数量的干燥的微粒自由流动的耐火材料，其量超过衬里所需的量，通过 以使得耐火层经受足够的离心力以使建立至少7.5的等效比重的速率旋转模具，其通过将耐火材料的实际比重乘以离心力的重力数来确定， 去除多余的耐火材料，以铸造速度旋转模具，然后引入用于铸造的熔融金属，同时继续使模具旋转至少该速率。 如此铸造的制品具有相对光滑的外表面，仅需要精加工。 本发明不使用添加剂，因此不需要排气金属模具，提供具有预定绝缘能力的相对较厚的衬里，以便控制铸造金属的晶粒结构，消除通常的端芯，并允许耐火材料为 回收。 本发明特别适用于铸铁制品，例如气缸衬套坯料，由灰口铁制成，这种制品具有外部增大，通常为横向外端凸缘。 根据本发明的铸造，这些制品在整个内表面上具有A型石墨，并且至少大部分厚度的凸缘或其它外部扩大件。

公开(公告)号：US4632168A

公开(公告)日：1986-12-30

申请号：US534614

申请日：1983-09-22

申请人： Charles H. Noble

发明人： Charles H. Noble

IPC分类号： B22D13/10 ,  B22C9/24

CPC分类号： B22D13/10

摘要： Reduction of porosity and control of graphitization in the centrifugal casting of tubular metal articles are achieved providing on the active surface of a metal mold by a densified and contoured lining of binderless particulate refractory material, at least 20% by weight of the particles in all of the lining being angular particles, at least 25% by weight of the particles in that portion of the lining in contact with the metal mold having predetermined particles size and/or thermal conductivity. The lining may comprise both a primary layer, formed of particles having good thermal conductivity and/or a relatively larger particle size, and a facing layer formed, e.g., of a milled refractory flour.

摘要翻译： 在管状金属制品的离心铸造中减少孔隙率和控制石墨化实现通过致密化和轮廓的无粘合剂颗粒耐火材料的衬里在金属模具的活性表面上提供，至少20重量％ 所述衬里是有角度的颗粒，所述衬里的与所述金属模具接触的部分中的所述颗粒的至少25重量％具有预定的颗粒尺寸和/或导热性。 衬里可以包括由具有良好导热性和/或相对较大颗粒尺寸的颗粒形成的主层和由例如碾磨的耐火面粉形成的面层。

公开(公告)号：USRE31482E

公开(公告)日：1984-01-03

申请号：US202755

申请日：1980-10-31

申请人： Charles H. Noble

发明人： Charles H. Noble

IPC分类号： B22D13/10

CPC分类号： B22D13/108 ,  B22D13/102

摘要： Tubular metal articles are produced by centrifugal casting in a rotary metal mold lined by centrifugally distributing a quantity of a dry finely particulate free flowing refractory material on the active mold surface with the quantity being in excess of that required for the lining, densifying the layer by rotating the mold at a rate such that the refractory layer is subjected to centrifugal force adequate to establish an equivalent specific gravity of at least 7.5, determined by multiplying the actual specific gravity of the refractory material by the number of gravities of centrifugal force, contouring the densified layer and removing the excess refractory material, rotating the mold at the casting rate and then introducing the molten metal for casting while continuing to rotate the mold at least that rate. Articles so cast have relatively smooth outer surfaces which require only finish machining. The invention employs no additives and thus eliminates the need for venting the metal mold, provides a relatively thick lining of predetermined insulating capability so as to control the grain structure of the cast metal, eliminates the usual end cores, and allows the refractory material to be recycled. The invention is particularly useful for casting articles, such as cylinder liner blanks, from grey iron, such articles having an outer enlargement, typically a transverse outer end flange. Cast according to the invention, such articles have Type A graphite throughout the entire inner surface and for at least a substantial portion of the thickness of the flange or other outer enlargement. .Iadd.

公开(公告)号：US4260009A

公开(公告)日：1981-04-07

申请号：US89306

申请日：1979-10-30

申请人： Charles H. Noble

发明人： Charles H. Noble

IPC分类号： B22D13/02 ,  B22D13/10 ,  B22C13/10 ,  B22D29/04

CPC分类号： B22D13/108 ,  B22D13/02

摘要： Centrifugal casting apparatus for casting cylinder liners and other tubular articles, characterized by recovery of at least a major portion of the particulate refractory material used to line the mold, with the recovered refractory material being suitable for re-use. The apparatus provides a chamber having aligned openings through which the cast article moves as the article is withdrawn from the mold by a puller. Particulate refractory material from within the mold and from the surface of the cast article is collected in the chamber and conveyed from the chamber to separator means for removal of debris.

摘要翻译： 用于铸造汽缸衬套和其它管状制品的离心铸造装置，其特征在于回收至少大部分用于排列模具的颗粒状耐火材料，回收的耐火材料适于重复使用。 该设备提供具有对准开口的腔室，当制品通过拉拔器从模具中取出时，铸造件移动通过该腔室。 模具内和铸造表面上的颗粒状耐火材料被收集在腔室中并从腔室输送到分离器装置以除去碎屑。

公开(公告)号：US4040875A

公开(公告)日：1977-08-09

申请号：US682251

申请日：1976-05-03

申请人： Charles H. Noble

发明人： Charles H. Noble

IPC分类号： B21C1/26 ,  B21C5/00 ,  B21C23/08 ,  B21D41/04 ,  B21K21/12 ,  C21D8/10 ,  C22C37/10

CPC分类号： C21D8/105 ,  B21C1/26 ,  B21C23/085 ,  B21C5/00 ,  B21C5/003 ,  B21D41/04 ,  B21K21/12 ,  Y10T428/12292

摘要： Articles of manufacture in the form of an annular ductile iron piece at least a portion of which has its carbon content in the form of flattened bodies disposed in planes parallel to the central axis of the piece and normal to the outer surface of the piece, the iron grains of the piece being extended significantly both in a direction parallel to the central axis and in directions which are transverse to the central axis and parallel to planes occupied by the flattened carbon bodies, the outer surface of the piece being smooth and uninterrupted without machining and the article being free from structural failure discontinuities.

摘要翻译： 环形球墨铸铁件形式的制品，其至少一部分的碳含量为扁平体形式，平面呈平行于该件的中心轴线并平行于该件的外表面的平面， 该片的铁颗粒在平行于中心轴线的方向上和在横向于中心轴线并且平行于扁平碳体所占据的平面的方向上显着延伸，该零件的外表面在没有加工的情况下是平滑且不间断的 并且该物品没有结构性故障不连续性。

公开(公告)号：US3977227A

公开(公告)日：1976-08-31

申请号：US564608

申请日：1975-04-03

申请人： Charles H. Noble

发明人： Charles H. Noble

IPC分类号： B21C1/26 ,  B21C5/00 ,  B21C23/08 ,  B21D41/04 ,  B21K21/12 ,  C21D8/10 ,  B21D3/00

CPC分类号： B21K21/12 ,  B21C1/26 ,  B21C23/085 ,  B21C5/00 ,  B21C5/003 ,  B21D41/04 ,  C21D8/105 ,  Y10T29/49988 ,  Y10T29/49989

摘要： Annular articles are produced by cold extruding a tubular ductile cast iron piece through a female die to desirably change the shape of at least an axial portion of the piece. The invention is based on the discovery that the nodular carbon content of ductile cast iron, amounting to, e.g., 10-12% by volume, represents voids of no structural strength in the metal and aids in working the metal in the cold, without damage, to that extent required for extrusion. Application of an extrusion load adequate to bring the metal to the yield point results in all of the metal in the die exhibiting plastic flow. Since the metal is in an annular configuration of decreasing diameter during extrusion, it is subjected to large hoop compression forces which cause the carbon modules to flatten and be arranged in planes which, in the case of an article of circular transverse cross section, are substantially radial relative to the extrusion axis. The iron grains are similarly reshaped and oriented. The extruded articles have increased longitudinal tensile strength and hardness, but ductility is restored by heat treatment.