63results about "Extrusion containers" patented technology

The short-process magnesium alloy wire continuous extrusion preparation method comprises the following steps that a, magnesium alloy extrusion materials are prepared, the thickness of the extrusion materials is 0.03-0.1 mm, and the length of the extrusion materials is 0.3-5 mm; b) preheating an extrusion wheel, wherein the preheating temperature is 250-500 DEG C; c) continuous extrusion: continuously introducing inert gas into an extrusion cavity, then feeding the magnesium alloy scraps into the extrusion cavity, and driving the magnesium alloy scraps to pass through an extrusion die along with rotation of an extrusion wheel to extrude a wire; and d) shaping and sizing: carrying out shaping and sizing treatment on the obtained wire material to obtain the magnesium alloy wire material with the final required diameter. According to the method, the problem of lengthy magnesium wire processing flow is solved, the problem of single type of magnesium alloy wires is solved, and the problem of efficient batch production of magnesium welding wires and wires for additive manufacturing of different component systems is solved, so that industrial production of the magnesium alloy wires is realized.

The invention discloses an extrusion forming device and method, the extrusion forming device comprises an extrusion container assembly, a mold assembly and an extrusion assembly, the extrusion container assembly is provided with at least two mutually independent blank cavities, and the cross section of at least one blank cavity is non-circular; the mold assembly comprises a gradual change type flow channel structure, a welding chamber structure and a mold outlet structure, the gradual change type flow channel structure comprises at least two mold flow channels, and the inlet ends of the at least two mold flow channels are in butt joint with the outlet ends of the at least two blank cavities in a matched mode; the at least two mold runners are used for carrying out plastic deformation on the metal blanks in the blank cavities and guiding the metal blanks to the welding chamber structure, and the welding chamber structure is used for carrying out interface welding on metal from the different mold runners; and the extrusion assembly is used for extruding the metal blanks in the at least two blank cavities. The extrusion force can be obviously reduced, the material flow uniformity is improved, the die complexity and material waste are reduced, the profile forming quality is improved, and the service life of the die is prolonged.

The invention discloses a profile extrusion container capable of achieving gradient differential temperature of a magnesium alloy round ingot blank and an optimized heating method, and relates to the field of magnesium alloy machining forming, the profile extrusion container comprises an inner layer, a middle layer, an outer layer, an induction heating coil, a ceramic curing sleeve and a cooling water circulation channel, and the optimized heating method specifically comprises the steps that a constant-temperature blank is repeatedly extruded; obtaining a target blank heating temperature and an extrusion rod speed set value; extrusion is conducted according to the target blank heating temperature and the extrusion rod speed set value, and distribution data of the average section temperature # imgabs0 # of the outlet profile along with the stroke x of the outlet profile are obtained through calculation; according to an extrusion outlet temperature optimization model, the actual heating temperature of the blank in each axial length range is solved by combining a metal volume invariant principle; axial temperature gradient control is carried out on a blank through partition heating of the extrusion container, and isothermal rapid extrusion is achieved. According to the method, the problems that a large amount of friction heat and plastic deformation heat are easily generated during extrusion production of the ultra-long profile, and the consistency of the structure and the performance of the extruded profile in the length direction is reduced are solved, guidance can be provided for isothermal controllability in the rapid extrusion process of the magnesium alloy profile, and the forming quality and the production efficiency of the magnesium alloy profile can be effectively improved.

A process for forming extruded products using a device having a scroll face configured to apply a rotational shearing force and an axial extrusion force to the same preselected location on material wherein a combination of the rotational shearing force and the axial extrusion force upon the same location cause a portion of the material to plasticize, flow and recombine in desired configurations. This process provides for a significant number of advantages and industrial applications, including but not limited to extruding tubes used for vehicle components with 50 to 100 percent greater ductility and energy absorption over conventional extrusion technologies, while dramatically reducing manufacturing costs.

A process for forming extruded products using a device having a scroll face configured to apply a rotational shearing force and an axial extrusion force to the same preselected location on material wherein a combination of the rotational shearing force and the axial extrusion force upon the same location cause a portion of the material to plasticize, flow and recombine in desired configurations. This process provides for a significant number of advantages and industrial applications, including but not limited to extruding tubes used for vehicle components with 50 to 100 percent greater ductility and energy absorption over conventional extrusion technologies, while dramatically reducing manufacturing costs.

The extrusion die comprises a blocking plate, one end face of the blocking plate is connected with the flat extrusion container, the flat extrusion container is filled with a blank, the other end of the flat extrusion container is fixedly provided with a large-head die, the center of the large-head die is provided with a deformation cavity with a circular transverse plane, and the deformation cavity is provided with an extrusion area inlet and an extrusion area outlet. The circular radius r of the cross section of the deformation cavity is gradually reduced from the extrusion area inlet to the extrusion area outlet, the end face, close to the extrusion area outlet, of the large-head die and the end face of the flat extrusion cylinder are located on the same horizontal plane, and the end face, close to the extrusion area outlet, of the large-head die is fixedly installed on the flat extrusion cylinder. The invention further discloses a design method of the bar extrusion die. According to the bar extrusion die for the flat extrusion container and the design method of the bar extrusion die, blanks flow through the die at the equal strain rate, and the quality of extrusion products made of materials difficult to deform is improved.

The invention belongs to the field of metal plastic processing equipment, and discloses a novel structure extrusion container and a pre-tightening method.The extrusion container is of a multi-layer container structure, an annular cavity exists between every two adjacent containers, liquid is filled through a one-way liquid supplementing valve, the liquid filling pressure and exhaust are set through a high-pressure overflow valve, and the cavities are filled with high-pressure liquid; and the pre-stress required by assembly is further generated.

The present invention provides a manufacturing method for a metal part manufactured by hot extrusion that can ensure the quality of the metal part. The material (1) includes a tip surface (11), an outer peripheral surface (12), and a chamfered surface (13). When the glass disk 4 and the raw material 1 are loaded into the container 2 at the start of extrusion, as viewed in vertical cross section, the outer diameter Db of the leading end surface 11 of the raw material 1 satisfies formula (1) in relation to the maximum radial dimension Dd of the die hole 31 and the inner diameter Dc of the container 2. When an imaginary line (L1) is defined connecting a connection point (P1) between the leading end surface 11 and the chamfered surface 13 and a connection point (P2) between the chamfered surface 13 and the outer peripheral surface 12, the inclination angle θb of the imaginary line (L1) with respect to a perpendicular line (VL) to the axis center (CL) of the container 2 satisfies formula (2). Furthermore, the inclination angle θb, the outer diameter Db, the maximum dimension Dd, and the inner diameter Dc satisfy formula (3). Dd≦Db≦Dd+0.8×(Dc-Dd) (1) 45°≦θb≦65° (2) [Equation 1] TIFF0007755226000007.tif37157

The invention relates to a forming tool (46) for a forming tool arrangement (12) for the multi-stage production of a cylindrical workpiece with a spiral outer contour by rotary swaging, comprising a force application side (62), a forming side (64) opposite the force application side (62) and a cam structure (70) formed on the forming side (64). The cam structure (70) has a first forming cam (72; 72a, 72b) and a second forming cam (72; 72a, 72b) which are arranged one behind the other in a longitudinal direction (74) of the forming tool (46) perpendicular to the forming direction (58), wherein the forming cams (72; 72a, 72b) have different cam heights (116) and the forming cams (72; 72a, 72b) have a cam direction (94) in an orthogonal view on the forming side (64) which is inclined to the longitudinal direction (74) of the forming tool (46).The invention also relates to a forming tool arrangement (12), a forming machine (10), a forming process and a computer program.

The present disclosure provides a shear assisted extrusion press comprising a stem and plunger assembly comprising a main piston configured to generate an extrusion force, a stem assembly comprising a stem having a first end and a second end, wherein the second end connects to a rotary piston that connects to the stem and plunger assembly, wherein the main piston exerts the extrusion force on the stem such that the stem moves axially, and at least one piston motor coupled with the stem and configured to drive a rotational movement of the rotary piston and the stem, and a container assembly comprising a container holder, a container configured to receive a billet and the first end of the stem, and at least one hydraulic motor positioned in the container holder with the container, wherein the at least one hydraulic motor is configured to drive a rotational movement of the container.

A screw extruder for extrusion of materials with high viscosity, comprises a screw (9) rotationally arranged in a bore (16) within a housing. The housing comprises a base section (11) having a material feed inlet (2), an extrusion section (14) having a compacting chamber (7) and an extrusion die opening (6), and one or more transport and compaction sections (12, 13) arranged between the base section (11) and the extrusion section (14). At least one of the housing sections (11-14) comprises one or more fluid conduits (4) and one or more fluid connectors (10) for connection to a fluid supply and circulation system, whereby the temperature in said at least one housing section may be controlled individually.

The present disclosure provides a shear assisted extrusion press comprising a stem and plunger assembly comprising a main piston configured to generate an extrusion force, a stem assembly comprising a stem having a first end and a second end, wherein the second end connects to a rotary piston that connects to the stem and plunger assembly, wherein the main piston exerts the extrusion force on the stem such that the stem moves axially, and at least one piston motor coupled with the stem and configured to drive a rotational movement of the rotary piston and the stem, and a container assembly comprising a container holder, a container configured to receive a billet and the first end of the stem, and at least one hydraulic motor positioned in the container holder with the container, wherein the at least one hydraulic motor is configured to drive a rotational movement of the container. The rotary piston and the stem are configured to rotate and move axially such that the stem moves the billet through the container to extrude a part, and the container and the billet are configured to rotate together while the container does not move axially.

The invention provides hot extrusion forming equipment for I-shaped aluminum alloy profile production, and relates to the technical field of aluminum alloy forming machining. The hot extrusion forming equipment for I-shaped aluminum alloy profile production comprises an extrusion cylinder, a separation type extrusion rod is arranged on the rear side of the extrusion cylinder, the separation type extrusion rod is installed on a hydraulic driving part, a heat preservation end is rotationally connected to the front side of the extrusion cylinder, and a discharging cylinder is rotationally connected to the front side of the heat preservation end. A flow storage box is installed at the position, close to the rear side, of the outer side wall of the discharging barrel, an extrusion mold is installed in the outer side wall of the discharging barrel, and a trimming and pressurizing assembly is installed on the outer side wall of the extrusion mold. The problem of poor combination of continuous forming of the two sections of aluminum blanks is solved, and extrusion force in the radial direction and the axial direction is applied to the combination position of the two sections of aluminum blanks through the separated extrusion rod and the hammering assembly, so that the strength of the combination position of the two sections of aluminum blanks is obviously improved.

The present disclosure provides a shear assisted extrusion press comprising a stem and plunger assembly comprising a main piston configured to generate an extrusion force, a stem assembly comprising a stem having a first end and a second end, wherein the second end connects to a rotary piston, wherein the main piston exerts the axial extrusion force on the stem, and at least one piston motor to drive a rotational movement of the rotary piston and the stem, and a container assembly comprising a container holder, a container configured to receive a billet and the first end of the stem, and at least one hydraulic motor positioned in the container holder with the container configured to drive a rotational movement of the container. The rotary piston and the stem are configured to rotate and move axially such that the stem moves the billet through the container to extrude a part, and the container and the billet are configured to rotate together.

This invention discloses a profile extrusion cylinder and optimized heating method for achieving gradient differential temperature in magnesium alloy round ingots, relating to the field of magnesium alloy processing and forming. The cylinder includes an inner layer, middle layer, outer layer, induction heating coil, ceramic curing sleeve, and cooling water circulation channel. The optimized heating method specifically includes obtaining the target billet heating temperature and extrusion rod speed setpoints by repeatedly extruding a constant-temperature billet; performing extrusion based on the target billet heating temperature and extrusion rod speed setpoints, and calculating the distribution data of the average temperature of the exit profile cross-section as a function of the exit profile stroke x; determining the actual heating temperature of the billet in each axial length range based on an optimized extrusion exit temperature model and the principle of constant metal volume; and controlling the axial temperature gradient of the billet using zoned heating within the extrusion cylinder to achieve isothermal rapid extrusion. This method solves the problem of excessive frictional heat and plastic deformation heat generated during the extrusion production of ultra-long profiles, reducing the consistency of the microstructure and properties of the extruded profiles along the length direction. It provides guidance for achieving isothermal controllability in the rapid extrusion process of magnesium alloy profiles and can effectively improve the forming quality and production efficiency of magnesium alloy profiles.

The present disclosure provides a shear assisted extrusion press comprising a stem and plunger assembly comprising a main piston configured to generate an extrusion force, a stem assembly comprising a stem having a first end and a second end, wherein the second end connects to a rotary piston that connects to the stem and plunger assembly, wherein the main piston exerts the extrusion force on the stem such that the stem moves axially, and at least one piston motor coupled with the stem and configured to drive a rotational movement of the rotary piston and the stem, and a container assembly comprising a container holder, a container configured to receive a billet and the first end of the stem, and at least one hydraulic motor positioned in the container holder with the container, wherein the at least one hydraulic motor is configured to drive a rotational movement of the container.

The present disclosure provides a shear assisted extrusion press comprising a stem and plunger assembly comprising a main piston configured to generate an extrusion force, a stem assembly comprising a stem having a first end and a second end, wherein the second end connects to a rotary piston that connects to the stem and plunger assembly, wherein the main piston exerts the extrusion force on the stem such that the stem moves axially, and at least one piston motor coupled with the stem and configured to drive a rotational movement of the rotary piston and the stem, and a container assembly comprising a container holder, a container configured to receive a billet and the first end of the stem, and at least one hydraulic motor positioned in the container holder with the container, wherein the at least one hydraulic motor is configured to drive a rotational movement of the container.

A system for performing shear-assisted extrusion can include a die tool, a headstock, a midstock, and a tailstock. The die tool can include a face configured to engage and plasticize a portion of feedstock material engaged with the face. The die tool can define an opening to receive plasticized feedstock material therethrough. The headstock can be secured to the die tool. The headstock and the die tool can be together rotatable about a central axis to generate a rotation-induced shear force between feedstock material and the die tool to extrude the feedstock material through the opening of the die tool. The midstock can be configured to support the feedstock material at least partially therein. The tailstock can be configured to translate along the central axis relative to the headstock and the headstock to generate an axial extrusion force between the feedstock material and the die tool.

The invention discloses a metal wire forming device and method, and relates to the field of metal forming manufacturing. The problems that according to an existing magnesium alloy wire preparation method, the preparation process is tedious, the magnesium alloy wire preparation efficiency is low, internal stress exists in the plastic deformation process, and the service life of a magnesium alloy wire is affected are solved. The device comprises a smelting furnace and a shaping wheel, the smelting furnace is configured to perform melting treatment on metal raw materials to form molten metal, the smelting furnace is provided with a wire outlet channel, and the molten metal can be discharged from the wire outlet channel; the shaping wheel is provided with a shaping groove, a cooling oil film is arranged on the inner surface of the shaping groove, and a wire outlet channel of the smelting furnace is arranged in the shaping groove; and the shaping wheel rotates, the wire outlet channel sprays the molten metal wire to the bottom of the shaping groove, and the cooling oil film cools the molten metal wire, so that the molten metal wire is solidified into the metal wire in the shaping groove. The method is mainly used for preparing metal wires.

The present disclosure provides a shear assisted extrusion press comprising a stem and plunger assembly comprising a main piston configured to generate an extrusion force, a stem assembly comprising a stem having a first end and a second end, wherein the second end connects to a rotary piston that connects to the stem and plunger assembly, wherein the main piston exerts the extrusion force on the stem such that the stem moves axially, and at least one piston motor coupled with the stem and configured to drive a rotational movement of the rotary piston and the stem, and a container assembly comprising a container holder, a container configured to receive a billet and the first end of the stem, and at least one hydraulic motor positioned in the container holder with the container, wherein the at least one hydraulic motor is configured to drive a rotational movement of the container.

Provided is a manufacturing method capable of ensuring the quality of a metal member manufactured by hot extrusion. A material (1) includes a tip surface (11), an outer peripheral surface (12), and a chamfered surface (13). At the start of extrusion, in a vertical cross-sectional view in a state in which a glass disk (4) and the material (1) are loaded into a container (2), an outer diameter Db of the tip surface (11) of the material (1) satisfies formula (1) in relation to a maximum dimension Dd in the radial direction of a die hole (31) and an inner diameter Dc of the container (2); when a virtual straight line (L1) connecting a connection point (P1) between the tip surface (11) and the chamfered surface (13) and a connection point (P2) between the chamfered surface (13) and the outer peripheral surface (12) is defined, an inclination angle θb of the virtual straight line (L1) with respect to a perpendicular line (VL) of an axial center (CL) of the container (2) satisfies formula (2); and the inclination angle θb, the outer diameter Db, the maximum dimension Dd, and the inner diameter Dc satisfy formula (3). (1): Dd ≤ Db ≤ Dd + 0.8 × (Dc - Dd), (2): 45° ≤ θb ≤ 65°

The utility model belongs to the technical field of feeding equipment, and particularly discloses an anti-oxidation heat preservation feeding device which comprises a transfer unit, a material supporting frame, a material storage barrel and a blocking unit. The transferring unit is used for transferring the material supporting frame, the material storage barrel is fixed to the material supporting frame, a feeding port is formed in the material storage barrel, and the blocking unit can seal the feeding port; a heat preservation layer is arranged in the material storage barrel, and the heat preservation layer and the heated blank do not generate chemical reaction; a gas inlet is formed in the material storage barrel and is connected with a protective gas storage device. According to the scheme, heat preservation can be conducted on a heated blank in the feeding process, temperature drop is greatly reduced in the feeding process, and stable extrusion force is guaranteed; and the exposure time of the blank in the air can be controlled.

The extruding machine comprises a machine base, an extruding mechanism and a power mechanism, a front beam is installed at the front end of the machine base, a die holder is installed between an ingot containing barrel and the front beam and can slide to one side of the front beam, and the ingot containing barrel is installed at the position, close to the front beam, of the middle of the machine base and can be movably connected in a front-back positioning mode. A rear beam, a main cylinder, a main plunger and an extrusion rod are installed at the rear end of the machine base, the front beam and the rear beam are fixedly connected through a tension column, a movable sliding block can be installed between the ingot containing barrel and the mold base through a mechanical arm to be tightly pressed and connected in a sealed mode, and the surface of the end, close to the ingot containing barrel, of the movable sliding block is sprayed with a high-temperature-resistant release agent. According to the method, the defects of tail shrinkage, interlayer and looseness of the extruded profile can be effectively reduced, the density of a metal matrix of a normal high-extrusion-ratio product is achieved, a small-tonnage extruder can be used for producing a product of a high-tonnage extruder, and the production and investment cost is greatly reduced.

A shear assisted extrusion process for producing cladded materials wherein a cladding material and a material to be cladded are placed in sequence with the cladded material positioned to contact a rotating scroll face first and the material to be cladded second. The two materials are fed through a shear assisted extrusion device at a preselected feed rate and impacted by a rotating scroll face to generate a cladded extrusion product. This process allows for increased through wall strength and decreases the brittleness in formed structures as compared to the prior art.

Operational safety during operation of an extrusion press (10) can be increased by virtue of the specialization of the electrical drives (50) that act upon the receiving container (13) in order to operate the extrusion press.

Extrusion press (10) for pressing a material to be pressed (11) through a die (12) with a receiver (13) receiving the material to be pressed (11) and with a press ram (14) displaceable with respect to the receiver (13), characterized by a receiver seal (30) which can be opened and closed by an electric motor.

The invention belongs to the technical field of metallurgical equipment, and particularly relates to an ultra-wide flat aluminum profile flat extrusion die and a production method.The ultra-wide flat aluminum profile flat extrusion die comprises a flat extrusion container lining, a rectangular hole part is formed in the flat extrusion container lining, and a buffer structure is arranged at the rectangular hole part; the outer side of the flat extrusion container lining is sleeved with the multi-layer prestress assembly, and the multi-layer prestress assembly is used for supporting the flat extrusion container lining; and the broadening mold is fixedly mounted at the outlet end of the flat extrusion container lining. The extrusion force in the extrusion process can be reduced by about 30%, so that a wider flat extrusion cylinder is used on an extruder with the same tonnage, the ultra-wide flat aluminum profile can be extruded by equipment with the same tonnage, the ultra-wide flat aluminum profile can be extruded and formed at a time, the energy consumption is reduced, meanwhile, the stress concentration value of the flat extrusion cylinder can be effectively reduced, and the production efficiency is improved. The bearing capacity and the anti-fatigue performance are improved, the service life is prolonged, and the stability and continuity of the production process are guaranteed.

A preparation apparatus for a lithium metal material, comprising a lithium storage tank (1), an extrusion barrel (2), an extrusion mechanism (3), and a frame (5). The lithium storage tank, the extrusion barrel, and the extrusion mechanism are all mounted on the frame. The extrusion barrel is arranged vertically and has an opening facing upwards, the extrusion mechanism is provided with a vertically arranged push rod, the push rod extends into an inner cavity of the extrusion barrel through the opening on the upper end of the extrusion barrel, and a lower end of the push rod is connected to an extrusion plate (301) matched with the inner cavity of the extrusion barrel. An openable and closable lithium material outlet (801) is provided on a bottom plate (8) of the extrusion barrel. A first lithium conveying pipe (16) is mounted at a feeding port of the lithium storage tank, and a discharging port of the lithium storage tank is communicated with a feeding port of the extrusion barrel by means of a second lithium conveying pipe (17). An initial position of the extrusion plate is located above the feeding port of the extrusion barrel. A first gate valve (14) is mounted on the second lithium conveying pipe. Further provided is a preparation method for a lithium metal material using the preparation apparatus. According to the apparatus and the method, an ingot casting process of a metal lithium can be reduced, so that the metal lithium can be effectively prevented from being oxidized or nitrided, the resources are saved, and the efficiency is improved.

A screw extruder for extruding a material having a high viscosity comprises a screw (9) rotatably arranged in a bore (16) within a housing. The housing comprises a base section (11) having a material supply inlet (2), an extrusion section (14) having a compaction chamber (7) and an extrusion die opening (6), and one or more transport and compaction sections (12, 13) arranged between the base section (11) and the extrusion section (14). At least one of the housing sections (11-14) comprises one or more fluid conduits (4) and one or more fluid connectors (10) for connection to a fluid supply and circulation system, whereby the temperature in the at least one housing section can be individually controlled.

The present invention provides a novel flat extrusion cylinder structure. The extrusion cylinder is a multi-layer cylinder structure. The inner cylinder has a flat and elongated extrusion hole. The layers of cylinders are assembled in an approximately rectangular manner. The long and short sides of the rectangles are fitted with different interference fits to generate different assembly prestresses in the vertical and horizontal directions. Combined with the approximately rectangular or approximately hexagonal outer contour structure of the outer cylinder, the uncoordinated deformation and local stress concentration during the operation of the flat extrusion cylinder are reduced, thereby improving the service life of the flat extrusion cylinder.