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| Number | Title | Issue Date |
| 7779662 | Extruder and pipe extruder The invention relates to an extruder and pipe extruder (1), comprising a press frame (3) consisting of a cylinder bar and a counter bar (2) connected thereto, wherein a linear displaceable receiver carriage (5) is arranged, said carriage ... | 08/24/2010 |
| 7594419 | Thermal control extrusion press container A subliner for use in a metal extrusion press, the subliner comprising an elongate annular body having an outer surface dimensioned for placement within an outer mantle, and an inner surface dimensioned to receive an inner liner. The subliner further comprises at le... | 09/29/2009 |
| 7272967 | Thermal control extrusion press container A subliner for use in a metal extrusion press, the subliner comprising an elongate annular body having an outer surface dimensioned for placement within an outer mantle, and an inner surface dimensioned to receive an inner liner. The subliner further comprises at le... | 09/25/2007 |
| 7216522 | Extruding and pipe press A metal extrusion press has a pair of fixed crossheads spaced along a press axis from each other and a plurality of elongated upper and lower members extending axially between and rigidly connected to the crossheads. Each member includes a rod axially tensioned betw... | 05/15/2007 |
| 7096705 | Shear-extrusion method A shear-extrusion method of severe plastic deformation for fabrication of metal shapes with ultra-fine structures is described. The improvements of the method include unidirectional shear of any required intensity during one step processing and under high hydrostati... | 08/29/2006 |
| 6976380 | Developing the texture of a material Developing a texture of a material includes receiving a billet of material having an initial texture. The billet is associated with an extrusion procedure having extrusion routes executed as passes. The following is repeated for each pass to transform the initial te... | 12/20/2005 |
| 6904657 | Brittle wire extrusion method and apparatus A method and apparatus is presented for the manufacture of brittle wire by the co-extrusion, or filled billet method. The invention involves a step by step method by which a billet can is specially prepared with a chamfered front end and a concave, collapsible front... | 06/14/2005 |
| 6883359 | Equal channel angular extrusion method According to one embodiment of the present invention, an equal channel angular extrusion (ECAE) method includes extruding a billet of material along a first axis in a first orientation through an ECAE die, extruding the billet along the first axis in a second orient... | 04/26/2005 |
| 6637250 | Device for manufacturing a metal profile An extrusion device for manufacturing a profile from an extrusion block (36), which is at least in part of metallic material, contains a container (10) with container bore (12) to accommodate an extrusion block (36), a stem (32), a shaping chamber and/or ... | 10/28/2003 |
| 6399215 | Ultrafine-grained titanium for medical implants We disclose ultrafine-grained titanium. A coarse-grained titanium billet is subjected to multiple extrusions through a preheated equal channel angular extrusion (ECAE) die, with billet rotation between subsequent extrusions. The resulting billet is cold p... | 06/04/2002 |
| 6209379 | Large deformation apparatus, the deformation method and the deformed metallic materials The present invention relates to a large deformation apparatus for metal-based materials that comprises a mold (A), a support mechanism (B) for supporting the mold (A), and a rotary mechanism (C) for rotating the mold (A), wherein the mold (A) comprises a... | 04/03/2001 |
| 6000269 | Method of forging and forging equipment Forging equipment and techniques prevent damage to the die set while also preventing abnormal flow of the material used in the forging process. In one embodiment, the forging equipment comprises a die set with a holding portion, constructed separate from ... | 12/14/1999 |
| 5964120 | Hot extrusion forging die for use in titanium alloy When used, a hot extrusion forging die for use in titanium alloy according to the present invention extrusion works a heated titanium alloy-made billet in such a manner as to diameter-reduce the billet. The hot extrusion forging die for use in titanium al... | 10/12/1999 |
| 5904062 | Equal channel angular extrusion of difficult-to-work alloys A method is described for producing homogeneous wrought microstructure during equal channel angular extrusion of difficult-to-work high temperature alloys that exhibit a high degree of flow softening at hot-working temperatures, wherein flow non-uniformit... | 05/18/1999 |
| 5896772 | Extruder An extruder is formed of a container having a container liner for receiving a billet therein, an extrusion stem situated near the container for disposing the billet into the container, and a two-piece seal block installed between the container and the ext... | 04/27/1999 |
| 5855135 | Horizontal metal extrusion press A horizontal metal extrusion press has a pair of relatively stationary end plates spaced apart relative to a press axis and a plurality of spaced parallel tie rods extending parallel to the axis between the end plates, fixing same axially together, and ea... | 01/05/1999 |
| 5678442 | Extruder An extruder has a cylindrical container into which a billet is loaded; a two-piece seal block disposed on an end surface of the container at an extruding stem side; a vacuum deaerating hole formed in the seal block; and a fixed dummy block, having an inte... | 10/21/1997 |
| 5657661 | Working method for loading an extrusion billet and metal extrusion press A work method for loading an extrusion billet using a billet loader into the billet chamber of a metal extrusion press and a metal extrusion press for extruding sections through a die using an extrusion ram. Whereby the loading can be carried out regardle... | 08/19/1997 |
| 5613393 | Metal extrusion process and extrusion press A process for extrusion of a metal billet placed in a container delimiting a housing for the billet. One end of the container is closed by a closing bottom and the other end by a dummy block. Before extrusion, the billet is pre-compressed in order to appl... | 03/25/1997 |
| 5461899 | Sealing device for an extruder An extruder with an air evacuation mechanism includes a cylinder with a die mounted at an outlet end and a piston movable between a position outside an opposite inlet end and a position inside the cylinder. A separate sealing device is mounted at the inle... | 10/31/1995 |
| 5454250 | Method for controlling die-retaining force of extruder A method and apparatus for controlling the die-retaining force of an extruder is disclosed. In the operation of an extruder adapted to retain a die with a container actuated by a container cylinder and effect extrusion of a billet readied for use in the c... | 10/03/1995 |
| 5445004 | Extrusion method with gas evacuation, and extrusion press In a billet-fed extrusion press, the movement of the container towards and against the die contained in the die slide at the beginning of an extrusion operation is opposed by auxialiary jacks (40), which maintain a gap of small thickness between the conta... | 08/29/1995 |
| 5400633 | Apparatus and method for deformation processing of metals, ceramics, plastics and other materials Unique methods and apparatus are provided for deformation processing of advanced materials using this invention. Enhanced physico-mechanical properties are obtained by extrusion through a die assembly with two channels having equal cross sectional areas u... | 03/28/1995 |
| 5392628 | Press assembly for extruding a billet An extrusion press has a sealing and suction device (30; 230; 330) mounted around a plunger (18; 118) with the possibility of sliding axially along the same; the device creates an airtight seal against a back face (25) of a container (20) for a billet (B)... | 02/28/1995 |
| 5352539 | Extruder housing for double-screw extruder having an annularly stepped internal bore covered by a hot isostatically-pressed structure, and method of making same An extruder housing is formed for a double-worm or double-screw extruder by providing a steel body with a seamless one-piece structure and hot-isostatically pressing the body and the powder-metallurgical wear-resistant material lining the preferably conic... | 10/04/1994 |
| 5103664 | Self-sealing extrusion die and die ring and associated extrusion process The die and die ring and the associated extrusion process of the invention comprises providing an extrusion press including a billet container which holds a billet of material to be extruded and a die assembly which holds a die ring. The die ring is adapt... | 04/14/1992 |
| 5062285 | Horizontal metal extrusion press A horizontal metal extrusion press has a single press cylinder, (13) consistsing of an open-ended sleeve (13M), and a cylinder head (13B) at one end. The cylinder head (13B) has a plug (13S) located within the open end of the sleeve (13M) and a flange (13... | 11/05/1991 |
| 4862721 | Multiple cylinder extrusion apparatus and method A structure comprised of a plurality of material cylinders, a ram head or heads for extrusion, and a mechanism for transferring the material cylinders into alignment with a ram head. The plural cylinders allow an operator to manually load one cylinder of ... | 09/05/1989 |
| 4829802 | Method and apparatus for extruding of metals, especially light-weight metals such as aluminum To increase the extrusion speed for extrusion of light-weight metal such as aluminum, without incurring hot short cracks, or fissures, and retaining high-quality smooth surface of the extruded material, the region of the extrusion chamber immediately ahea... | 05/16/1989 |
| 4787234 | Method and apparatus for extruding superalloy material The present invention provides a method and apparatus for a forwardly extruding superalloy parts. The method provides for extruding metal parts from a superalloy material in an extrusion press having a lower press table assembly accommodating the extruded... | 11/29/1988 |
| 4781053 | Indirect extrusion process and machinery therefor An indirect extrusion process, and apparatus therefor, for producing an extrusion product from a hot metal billet. A press container is mounted to be substantially axially stationary during extrusion of a billet. A hot billet, a die and a pressure disc ar... | 11/01/1988 |
| 4703642 | Process and device for manufacturing a section, in particular a hollow section, via extrusion A process and device for manufacturing a section, in particular a hollow section, especially from light metal billets. To this end a plurality of billets is simultaneously forced through the shape-giving cross-section of a die and united to form the matri... | 11/03/1987 |
| 4699657 | Manufacture of fine grain metal powder billets and composites Very fine grain metal billets are produced by loading alloy metal powder of desired composition into a metal extrusion container in successive layers of two or four inches deep. Each layer after loading is compacted by a high energy rate forming ram so as... | 10/13/1987 |
| 4694673 | Container guidance system for extrusion press A container guidance system for extrusion presses wherein heat-induced misalignment of the container and container holder from the press centerline axis is prevented or rendered negligible by the substantially diametric positioning of the container holder... | 09/22/1987 |
| 4632702 | Manufacture and consolidation of alloy metal powder billets Metal powder of the desired composition having a particle size of -80 mesh is charged into an extrusion container, preferably a piece of carbon steel pipe, in successive layers about two inches thick. Each layer is compacted after deposition by a high ene... | 12/30/1986 |
| 4606210 | Extrusion press for manufacturing extruded sections from metal billets A process and apparatus for the indirect extrusion of hollow sections over a mandrel having a diameter dD from a plurality of billets each having a diameter don wherein the volume throughput of metal is greater than that obtained by ... | 08/19/1986 |
| 4604882 | Forming apparatus for production of stranded conductor A rotary head for use in an apparatus for forming a stranded wire, the apparatus including an inner rotating body rotating about a predetermined axis, an outer rotating body surrounding the inner rotating body to define an annular space between the two bo... | 08/12/1986 |
| 4602952 | Process for making a composite powder metallurgical billet A process for producing a composite billet employing powder metallurgical techniques in which a first alloy powder of a preselected composition is compacted in a tubular container producing a preliminarily compacted tubular mass which thereafter is finish... | 07/29/1986 |
| 4592224 | Process and device for extruding a hollow section A process for extruding a metal billet, in particular a light metal billet in an extrusion container, into the form of a hollow section through a shape-giving orifice in a die having a mandrel which determines the inner contour of the hollow section, and ... | 06/03/1986 |
| 4425775 | Methods for extrusion Two elongated gripping members (12,12) cooperate to form a closed pressure chamber about a waxed billet (61). The gripping members are reciprocated relative to an extrusion station (13), such reciprocation first moving the pressure chamber toward and past... | 01/17/1984 |
