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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...
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7591163 |
Extrusion molding method and apparatus of extrusion press
An extrusion molding method of an extrusion press includes a first step of loading a billet, the outer surface of which is subjected to a barking treatment, into a container, and extruding the...
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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...
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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...
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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...
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7069760 |
Device and method for manufacturing a curved metal tube or rod
The purpose of the present invention is to propose a new way of manufacturing curved metal tubes or rods with arbitrary sections and eliminating the conventional bending defects such as thinning...
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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...
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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...
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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...
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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...
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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)...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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....
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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...
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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...
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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),...
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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...
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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...
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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...
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5237746 |
Method of preparing cylindrical aluminum substrate for electrophotographic photoreceptor
A method for preparing a drum comprising a cylindrical aluminum substrate coated with an electrophotographic photoreceptor having reduced streak defects which comprises forming the cylindrical...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 d D from a plurality of billets each having a diameter d on wherein the volume throughput of...
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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...
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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...
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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...
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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...
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4416139 |
Guiding a mandrel or punch for piercing or cold-extrusion
A piercing mandrel or punch, particularly for backward extrusion, is guided by a member which centers the mandrel or punch in the upper die cavity and is coupled thereto until abutting a centering...
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4345450 |
Reverse extrusion press
In an indirect extrusion drawing press comprising a fixed crosspiece to which is fixed a tubular ram which is perforated by an axial orifice for the removal of the wire, a fixed bearing member, a...
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4342211 |
Process and apparatus for extruding a composite section
A composite section comprises a beam-like section which may in particular be made of a light-weight metal, and a facing of at least a part of at least one face of the beam-like section made of...
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4332156 |
Method for the manufacture of pipes by means of extrusion as well as for providing one flange on at least two pipes, and device to carry out the said method
The invention is related to the integral extrusion of at least two pipes and a common flange to an extruding device and to a flange with at least two pipes integral with said flange. The method is...
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4319476 |
Methods and apparatus 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...
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4308742 |
Method of and machine for extruding
Metal billets to be used for extrusion are cast and quickly cooled to their solidifying temperature to minimize grain growth and are delivered to a tempering oven where they cool to the temperature...
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4305270 |
Hydrostatic pressing apparatus
A hydrostatic pressing apparatus comprising a container having a cavity for accommodation of a blank and communicating with a high pressure source, and a die and a plug which seal the cavity on...
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RE30688 |
Extrusion press for indirect extrusion
An extrusion press for indirect extrusion has a sealing plate at one end of the bore of the billet container. This sealing plate extends a certain distance into the bore where it provides a seal...
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4244205 |
Apparatus for aligning extrusion producing members of a press
An arrangement for obtaining proper alignment of parts and proper sealing of parts in an extrusion press having an offset supporting shaft rotatably carrying a container holder assembly and two or...
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4231245 |
Indirect extrusion apparatus
A die holder has adjacent to its front end an annular step portion comprising a steep wall and a gradual wall tapered from the steep wall to the front end, the annular step portion being adapted to...
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