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Invention relates to compaction of metal scrap and pressing of broken-down carriers. Press comprises bottom plate with smooth surface and top pressure plate with bulged working surface. Top plate is coupled with crank gear drive. Con-rod is rigidly coupled with top plate and articulated with swinging slider. Said slider is secured at stationary strut. Crank articulated with con-rod is arranged to turn ay bottom plate base. Centre of curvature of top plate bulged working surface is located at extension of con-rod axis on swinging slider side. |
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Press comprises a loading chamber, a premoulding chamber, a stamp chamber to form briquettes. The stamp chamber is designed in the form of a socket. An actuator mechanism for pressing in the form of a hydraulic cylinder with a rod and an actuator mechanism of raw supply in the form of a pneumatic cylinder with a piston are provided in the press. The stamp chamber is equipped with a flap in the form of a wedge, having the actuator mechanism of its lifting and lowering. The press is equipped with a device, designed to coordinate operation of the actuator mechanisms of the flap, pressing and supply of raw. |
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Invention relates to portable roller press. Said press with load-bearing frame with two opposed posts, feed roller assembly with top and bottom rolls extending between said propos and articulated therewith to run therewith, two opposed flaps articulated with load-bearing frame to displace between closed and open positions. Besides, this press comprises the guide roller arranged every flap to spin thereabout. Said flaps have recessed parts that cover feed rollers at closed position of said flaps. Besides, at closed flaps, guide rollers move in free space between top and bottom rockers. |
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Invention relates to gripper feeders of multiposition processes, mainly, crank die-forging presses. Proposed feeder comprises stationary bed, claws, claw actuator to displace the claws along press positions, claw vertical drive and mechanisms to extend, clamp and unclamp the claws. claw actuator to displace the claws along press positions and vertical drive are composed by the frame with grippers secured thereto. Said frame can be swung by links articulated therewith. Hinge linked with crank is arranged at the centre of one of said links. Mechanisms to extend, clamp and unclamp the claws are equipped with motors. Said motors have disc rotor and stator mounted at fixed bed in the zone of operation of appropriate drive. |
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Hydraulic press comprises a moving beam and a fixed beam, two actuating cylinders and two return cylinders, a pump station and a system of distribution and directional control equipment. The said system comprises sixteen back pressure valves, fourteen two-way cut-off slides, a four-way three-position reverse slide, a four-way two-position slide, a main doser and an additional doser installed coaxially. Each doser is made with two identical high pressure dosing cylinders and two identical low pressure dosing cylinders. The cylinders' plungers form movable units rigidly fixed to each other and fitted by a bar to switch the four-way two-position slide. One input of the said slide is connected to the drain and the other - to the output of the four-way three-position slide. The high pressure dosing cylinders of the dosers are of periphery mounting and are connected to one of the power cylinders pairwise. The low pressure dosing cylinders of both dosers are connected to the pump station fluid tank separately via the back pressure valves. |
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Hydraulic press comprises an actuating cylinder, main and additional hydraulic intensifiers, a pump station, a system of distributors. The intensifiers are made as high and low pressure cylinders with plungers forming movable plunger blocks which are rigidly connected to each other. The system of distributors consists of a four-way three-position reversing slide valve and a three-way two-position slide valve. A system of eight back pressure valves, a system of six two-way two-position cut-off slide valves and a four-way two-position slide valve are provided in the press. The cavities of high pressure cylinders of each intensifier are separately connected to the piston cavity of the actuating cylinder through the sequentially installed back pressure valves and normally closed cut-off slide valves. One of the outputs of the four-way two-position slide valve is connected to the low pressure cylinder cavity in the main intensifier through the normally closed cut-off slide valve and to the high pressure cylinder cavity in the additional intensifier through the parallel installed back pressure valve and normally closed cut-off slide valve. The second output of the said slide valve is connected to the low pressure cylinder cavity in the additional intensifier through the normally closed cutoff slide valve and to the high pressure cylinder cavity through the parallel installed back pressure valve and normally open cut-off slide valve. The result is expanded process capabilities of the press and simplified control circuit for the main intensifier. The inputs of the said slide valve are connected to the drain and one of the outputs of the three-way two-position slide valve. Additionally the cavities of low pressure cylinders of both intensifiers are separately connected to a fluid tank and the piston cavity of the actuating cylinder through the back pressure valves. |
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Platen press, assembly of caul plate and press pad Invention relates to presses to be used for application of amino-aldehyde resin coating on chipboards. Platen press comprises at least one heating plate, at least one caul plate to face pressed material and at least one press pad arranged between caul plate and heating plate. Said pad incorporates tight membrane (3) filled with resilient polymer material and connected with caul plate (5) to form closed space there between. Said space is filled with pad ply material liquid at, at least, platen plate operating temperature. |
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High-pressure moulding machine Invention relates to high-pressure moulding equipment. Proposed machine comprises high-pressure vessel arranged around high-pressure chamber with working medium, fan connected motor, housing wall section cooler, pump and guide. Housing is arranged inside said chamber. Fan is arranged in chamber outside said housing to circulate working medium contained thereon. Pump is designed to circulate fluid inside said housing by said housing wall cooled section. Said guide is located inside said housing to guard said motor. Said element has fluid inlet and outlet for motor cooling purposes. |
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Method of producing circular oxide compacted material Invention relates to powder metallurgy, particularly, to production of circular oxide compacted article. It can be used for production of catalyst stationary bed used in shell-and-tube reactor pipes. Powder material containing at least one metal compound to be converted into metal oxide by heat treatment, or at least one metal oxide , or at least one metal oxide and at least one metal compound, are placed in loading chamber. Mechanical compaction is performed to preform ring-like article with side surface shaped to truncated cone expanding upward. Preformed article is heat treated at ≥100°C to destruct and/or chemically convert the article components with production of gas compound and final ring-like oxide article. |
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Tool for charge material compaction Proposed tool comprises pot, female die and coupled dummy block and stem. Screw coupling is tightly secured in said stem by thread joint and key. Dummy block is jointed with screw coupling by bayonet joint composed of ledges on screw coupling and recesses in dummy block and locked by resilient split pin. |
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Hydraulic screw press consists of a hydraulic motor with its rotor being fitted with a flywheel and directly connected to a screw. The screw is set in supports placed in the upper cross-piece of a frame with the possibility of rotation in respect to a nut. The nut is installed in a slider with the possibility of travelling along the screw axis and is movably connected to the slider by a screw joint. |
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Hydraulic drive of press moving beam Hydraulic drive of a moving beam of a press comprises a power and a kicker hydraulic cylinder, a hydraulic distributor, a filling tank, a pressure hydraulic line connected to a pump-and accumulator-station, a drainage hydraulic line connected to the tank and a decompression unit for the fluid in the power cylinder. The decompression unit consists of a hydraulic motor and an adjustable pump with proportional electric control with their shafts being connected by a coupling. The inlet channel of the hydraulic motor is connected to the working cavity of the power hydraulic cylinder by a controlled valve. The outlet channel is connected to the tank. The inlet pump channel is connected to the filling tank. Its outlet channel is connected to the pressure hydraulic line by a check valve. Electric control unit of the pump is connected to the outlet of the controller included in the press control system. The controller inputs are connected to the outputs of the pressure sensor in the working cavity of the power hydraulic cylinder, those of the position sensor of the pump adjusting unit and of the angular velocity sensor for the rotation of hydraulic machines' shafts. |
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Conveyor to feed biomass into pressure chamber Two separate-control augers are arranged in screw conveyor pipe (6). Between primary auger drive by motor (12) and secondary auger driven by motor (11) biomass is compacted at higher pressure due to difference in rpm of said motors to make gastight plug (13). |
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Machine for forging with twisting Invention relates to press forging, particularly, to presses for forming with twisting. Proposed machine comprises bed to accommodate the drive, sleeve, brake, flywheel, slier with bottom centre pad and top centre pad. Slider, flywheel and both centre pads are aligned. Flywheel has central threaded bore for screw with noncircular head. Said head is fitted in appropriate noncircular bore of top centre pad to make a sliding pair. Screw opposite part is bolted to bottom centre pad to make therewith a ball joint. Two cylindrical thrusts are rigidly fitted in bottom centre pad. Fee ends of said thrusts slide in appropriate bores of flywheel. |
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Method of thermostatting of hot isostatic press and hot isostatic press Invention relates to equipment for pressing under high pressure and at high temperature. A hot isostatic press comprises a reservoir for development of pressure, inside of which there is a loading space. Between the reservoir and the loading space there is insulation. The loading space is surrounded with a convection cartridge for formation of a convection gap. A fluid medium is supplied into the loading space at least via one nozzle for development of the vortex flow. The specified fluid medium is mixed with the fluid medium available in the loading space. At the same time the fluid medium simultaneously forms a circulating cartridge around a convection cartridge and arrives from the convection gap into the loading space. Inside the reservoir for development of pressure there is at least one line for fluid medium, which is connected at least with one nozzle inside the reservoir. The angle of nozzle output is made as capable of development of the vortex flow inside the loading space. |
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Invention relates to metallurgy and cab be used at 650 MN hydraulic presses. Hydraulic press comprises bed frame composed of C-like plate cramps. Every cramp is composed by top and bottom semi-cramps rigidly interconnected to make the bed load-bearing strut. Plates are arranged between plates semi-cramps to close the joints there between. Cylindrical rolls are used for rigid attachment of semi-cramp with plates. Oval bores to receive spacers are made in abutting parts of semi-cramps and plates. Said elements are composed of split wedge rolls composed by two parts. Every plate in stack is arranged with shift of the axis of their oval bores relative to those of abutting parts of semi-cramps. One of split wedge roll parts abuts on plates by its cylindrical surface. Another part of said roll is coupled with abutting part of semi-cramp. |
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Invention relates to machine building and can be used in pyroelements shaped to tapered tablets. Proposed press comprises pyromix batcher, compacted tablet discharge flute and rotor equipped with tool frames. Every said frame comprises top and bottom male dies aligned to displace in synchronism opposite each other. Female dies with bottom composed by bottom male dies are arranged between male dies. This press incorporates a control system. Pyromix batcher is composed of rotary disc articulated with rotor provided with metering through holes arranged along the edges and top table with discharge hole secured under the disc. Said discharge hole is inclined through angle larger than that of natural slope of pyromix. Female dies are shaped to cone inversed to pressing direction. Female die taper K=(D-d)/2h is selected from enclosed relationship. |
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Invention relates to metal forming equipment, particularly, to presses with electromagnetic transfer of pressure to plunger or plate. Electric press comprises bed, stator with excitation winding, slide, rod and reverse stroke system. Stator consists of transverse rod carrying excitation winding and two lengthwise round-section rods. Armature winding is arranged on lengthwise rods. Slider is composed by two parts embracing lengthwise rods and interconnected by crossbar. Said parts feature external envelope with its coordinate in polar system of coordinates satisfies the enclosed relationship. Stator can comprise two guide rods from nonmagnetic material. Slider is equipped with guide bushes embracing guide rods. Bearing plate is made of nonmagnetic material. |
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Invention relates to powder metallurgy, particularly, to production of brushes from carbon-based powders. Brush workpiece is made in multicavity mould by vertical compaction. After vertical compaction, horizontal reduction force is applied from the side of the bush working end to make 10-15 % of vertical compaction at specific force of horizontal compaction 30-40% larger than specific vertical compaction force. Multicavity mould comprises female die 1, top vertical male die 2, chase 3, fixed male dies 4, set of cavity inserts to male cavities 6 to be filled with powder. Horizontal male die 8 and extra vertical male die 10 are conjugated in inclined surface 9 with inclination angle α=10…15 to the mould vertical axis. This mould incorporates the element designed to return horizontal male die to initial position and composed by resilient element. |
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Mould for making pellets from powders Invention relates to powder metallurgy, particularly, to equipment for compaction of powders. It can be used for making the pellets from fine powders to be added to metal melts as allying additive. This mould comprises upper bed 2 with top male die 4, lower bed 1 with bottom male die 3. Lower bed accommodates opposed side male dies 5, 6 to displace towards each other. Note here that every pair displaces in its plane. Male die cavity is composed by top plate 10, bottom plate 9 and four side plates 12, 13, each stating in contact with working surface of one of male dies to reciprocate towards the center of male die coupled therewith and to displace in the plane perpendicular to male displacement owing to displacement of side plates adjacent therewith. |
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Press with connectable-detachable collection truck Press comprises said truck to collect material to be compacted. Truck has accumulation space with bottom and walls. After connected of said truck to press material accumulated in the truck can be displaced to the press compaction chamber. To empty the truck its bottom can displace up-down and vice versa. Note here proposed assy comprises conveyor to convey material accumulated inside truck into press compaction chamber at truck bottom up motion. Truck detached from the press is filled with material to be compacted and spaced from said press. Said conveyor grips material in accumulation truck at bottom up motion and feeds it into press. |
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Method to briquette biowaste of animals and birds and device for its realisation Invention relates to a device for briquetting of biowaste of animals and birds, comprising a loading hopper, a conical auger installed in the hollow body, a scraper conveyor arranged in the lower part of the body, a spring-loaded plate in the form of a ski is installed at the side of the conical auger top at the outlet from the body. It additionally comprises a mixer made of a body, nozzles for input of a filler and an aggregate, besides, along the vertical axis of the mixer body there is a rotor with blades arranged at the angle to each other, the lower part of the mixer via the gate and the pipeline is connected to the lower part of the device for mixing of the material with the binder made of a body and a nozzle of binder injection, inside the body on its opposite sides there are two augers in the form of a spiral with the opposite winding rotating with the help of electric motors, at the outer side of the device body for mixing along its perimeter there is a coil with a coolant. Blades installed on the rotor of the mixer have the shape of a rectangular triangle. Application of the proposed device makes it possible to use biowaste of animals (manure, dung), and also to use local resource in the form of easily available and environment-safe materials. |
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Invention relates to metal forming. Proposed extruder comprises frame-type composite bed supporting crossbar with ram assy and hydraulic cylinders, piercing crossbar and fixed crossbar. Said fixed crossbar carries horizontally displacing table with die tooling and table for female die units with piercing and die tooling. Container holder with container is arranged between moving crossbar and said tables to displace vertically there between. Container holder is displaced by hydraulic drive composed of two piston-type hydraulic cylinders secured at fixed crossbar on both sides of the tables. Container holder comprises two stationary units and replaceable unit. Every stationary unit is rigidly secured at appropriate hydraulic cylinder piston. Replaceable units is arranged between stationary units, its axial position being adjusted by wedges. |
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Press anti-overload protection device Invention relates to forging equipment and can be used for protection against overload on the press incorporating con-rod and slider. Said slider accommodates the support to allows joint displacement of both in direction of slider motion. Said support is articulated with press con-rod to get in contact with safety. The latter is arranged in said slider and aligned with said support and consists of cylinder and external ring assembled with interference fit. Said cylinder and ring are spring loaded relative to each other. One of safety part is made from material with shape memory and incorporates built in electric heaters. |
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Invention relates to forging equipment and can be used in crank presses. Crank press clutch comprises pressure, thrust and driven plates. Pressure disc is driven by modular drive. Every module includes rod, motor with rotor and torque converter. Rod displaces to transmit torque to pressure disc. End motor rotor runs on shaft and is magnetically coupled with inner and outer stators mounted at press bed. Torque converter is engaged via planetary reduction gear with rotor shaft and rod. |
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Invention relates to machine building and may be used in crank press brakes. Said brakes serve to absorb energy of press clutch drive part after clutch is disengaged and to retain actuator jointly with drive part in position that corresponds to press slider to position. Brake comprises bearing, drive and pressure plates, pressure plate drive and cover. Drive is composed of modules. Every module comprises slider and end motor with inner and outer ring-like stators. Stators are mounted at press bed to get in magnetic contact with disc rotor. Rotor shaft is engaged via planetary reduction fear and torque converter with slider. |
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Screw extruder to make briquettes from sawdust Invention relates to machine building and can be used in extruders intended for production of compacted fuel from, mainly, the mix of peat with sawdust. Screw extruder comprises bed to support intake hopper and housing with matrix channel, carrier and screw. Carrier has cylindrical insert with splitters arranged radially. Said carrier can feature conical shape with taper angle of 6 degrees. This allows making the cylindrical briquettes with cylindrical bore with radial channels. |
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Invention relates to forging equipment. Two top eyes are articulated with press bed and, in pairs, with bottom eyes by ball joints. Bottom eyes are articulated by ball joints with said bed that can translate. Every said bottom eye is articulated by ball joint with appropriate tie rod. Said tie rods are articulated with air cylinder rod, air cylinder being mounted at the bed to rotate in the plane tie rods. |
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Invention relates to powder metallurgy, particularly, to compacting presses. Press comprises column-type foundation with top and bottom booms, top and bottom male dies secured thereat, container with powder located in vacuum chamber and container drive. Vacuum chamber comprises cover with opening accommodating top male die and bottom sealed at press bottom boom. Cover and bottom are rigidly interconnected by four L-like posts. Side surface is composed by sections one of which being rigidly connected with cover, bottom and two posts and including pipe for connection for evacuation system. Other sections are mounted at said columns to turn thereabout. Container drive comprises hydraulic cylinder secured at bottom boom, bearing frame arranged to displace relative to bottom male die including top crossbar with four links rigidly secured thereat to support said container and bottom male die opening, and bottom crossbar rigidly connected with top crossbar by said columns. Columns can displace in openings of bottom boom. Top crossbar is arranged inside vacuum chamber while hydraulic cylinder is mounted between press bottom boom and bearing frame bottom crossbar. |
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Manipulator to feed thixo solid-fluid workpiece into mould Invention relates to metallurgy and can be used at line for pressing articles from solid-fluid workpiece in production of railway car boxes. Support frame is equipped with guide rails to support carriage for lengthwise displacement thereon. Crank pair driven by hydraulic cylinder is mounted at said carriage. Casing with grippers is coupled with said crank pair. Said grippers are shaped to thixo workpiece barrel and articulated with hydraulic cylinder secured in said casing. |
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Method of pelletising polydisperse loose materials for making bulk weight for furnaces Invention relates to machine building and can be used in pelletising carbon-bearing and other polydisperse loose materials for use in shaft furnaces, blast furnaces, cupolas and nonferrous metallurgy furnaces. Briquette mix prepared for compaction is fed in between press rolls and compacted by roll forming cells. Said cells are made at roll sleeves in the form of symmetric half-molds of would-be pellets. Said symmetric semi-molds differ in sizes and/or shape. |
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Expeller for pelletising timber wastes Invention relates to woodworking and can be used for pelletising of timber wastes. Expeller comprises housing consisting of intake zone and zones of material compaction, forming of pellets and curing. Housing accommodate driven compaction screw with forming ledge. Hollow screw is furnished with tube for feeding of hot heat carrier for heating said screw and timber wastes in contact with its surface. Temperature gage is used to measure heating temperature. |
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Hydraulic powder compacting press Invention relates to metal forming, particularly, to compaction of powder by upsetting with twisting. Proposed press comprises bed with crossbars with hydraulic cylinder secured in one of them. Cylinder piston is engaged with slider fitted in bed guides. Shaft with die holder secured at its one end is fitted at the bed other crossbar. Said shaft runs alternately in opposite directions, being driven by two-arm rocker. Rocker arms are engaged via con-rods with crankshaft cams. Said shafts are arranged in symmetry about two-arm rocker and are drive by motor via appropriate gearing. |
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Invention relates to machine building and may be used in woodworking and in radiators for uniform distribution of heat over radiator or board entire volume. Heating board comprises carcass and manifold connected therewith. Carcass is composed of metal sheet with rectangular-cross-section structural tubes arranged there atop. Said manifold consists of two parallel rectangular cross-section circuit tubes and straight lengths of rectangular cross-section manifold tubes. Aligned lengths of structural tune are arranged between manifold tubes. Carcass and manifold aligned at their top are covered by upper metallic sheet every second manifold pipe is elongated starting from hear carrier flow inlet and has chamfer made at the angle directed to heat carrier flow. Said manifold tube covers cross-section of structural tube to divide heat carrier flow into two equal flows. Said flows are directed to opposite structural tune up to heat carrier flow outlet. |
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Invention relates to equipment intended for extrusion of stock comprising several components to be used in processing branches. Extruder consists of a cylinder with loading opening, vaned screw arranged in said cylinder and outlet female die. At least, one compression gate is rigidly secured on said screw. Said gate features stepped shape with ribs for separation of materials forced toward compression gate in separate flows and for enlargement of the area of contact with the gate. |
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Invention relates to equipment intended for extrusion of stock comprising several components to be used in processing branches. Extruder consists of a cylinder with loading opening, vaned screw arranged in said cylinder and outlet female die. Said extruder incorporates, at least, one compression gate shaped to truncated ribbed cone. Said gate is rigidly fitted on the screw. Material forced towards the gate is separated into separate flows to increased are of its contact therewith. |
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Roller press with two moving rolls Invention relates to equipment for compaction of pelletised materials. Roller press comprises two moving rolls separated by roll space. Said rolls are fitted on shafts to revolve and displace in opposite horizontal directions thereat. Roll shafts run in bearing housings fixed in the bed. Two housings of bearings for different rolls mounted on their sides are connected via, at least, one press cylinder with, at least, two working chambers. Forces in said working chambers act in different directions. Note here that said chambers are communicated for pressurised working medium circulation. |
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Invention relates to pelletising pre-ground vegetable, animal and mineral materials. Mixer-granulator comprises active circular female die mounted on turntable and equipped with passive compaction rollers arranged on carrier. Female die inner cylindrical surface is perforated to make extrusion holes. Female die supports cone to feed material in compaction zone. Replaceable limit rings composed of toothed crowns with inner teeth are secured to turntable and said cone. Side contact surfaces of limit rings make, together with female die inner cylindrical surface, an annular chamber with compaction rollers extending therein. Every roller on end sides is furnished with replaceable spur gears rigidly fixed therewith. Gearing between limit rings and gears makes rigid engagement between female die and compaction rollers. |
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Invention relates to machine building, particularly, to pelletisers to be used in chemical and pharmaceutical, electrochemical and other industries. Rotary pelletiser comprises bed, rotor with dies mounted at die table and collecting blade. To remove excess pelletised material from die table surface, circular groove is made along the edges of said table. Collecting blade is fixed at said circular groove and secured to support. Said support is mounted at said bed. Tray to collect excess pelletised material is arranged under die table at collecting blade zone. |
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Invention relates to machine building, particularly, to pelletisers to be used in chemical and pharmaceutical, electrochemical and other industries. Bin with outlet pipe, rotor with female dies and male dies and feeder are mounted on rotary machine bed. Intake barrel with wall inclined relative to vertical and opening at its bottom shaped to sector is arranged at said feeder. Besides, said feeder has opening communicated with that of intake barrel. Said intake barrel can rotate about its axis. |
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Method of producing polyolefin films Invention relates to production of films from superhigh-molecular polyolefin. Proposed method comprises affecting initial superhigh-molecular polyolefin with weighted mean molecular weight of, at leas 500000 g/mol in the form of compacted powder by isobaric press. Besides, compacted polyolefin of rolling stage is subjected to definite processing. Also, it is stretched at such conditions whereat polymer processing temperature does no up to magnitude exceeding its fusion point at no point whatsoever. |
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Invention relates to machine building, particularly, to pelletisers to be used in chemical and pharmaceutical, electrochemical and other industries. Rotary pelletiser comprises rotor with female dies, aligned top and bottom male dies, and feeder. Said feeder has casing its inner space being formed by communicated chambers of turners. Said casing has a grove communicated with rotor female dies in rotation. Collector of excess material being pelletised is arranged at casing bottom. Said collector is communicated with turner chambers. Collector intake is composed of channel directed toward rotor rotation and communicated with aforesaid groove. |
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Invention relates to production of articles from polymer materials, fusible metals and alloys with reinforced parts. Proposed mould consists of female and male dies, gate system, forming insert and resilient holder. Said holder serves to level and lock armature relative to mould in its closure. At least, one of the main parts has recesses for access of moulding material to resilient clamp. Note here that additional pressure is created to resilient clamp for it to take up the shape that rules out flash formation at armature parts extending beyond dimensions of formed part. Elastic coating is applied to connecting surfaces of male and female dies and forming insert. Said coating prevents penetration of moulding material into gaps in mould closure. |
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Invention relates to extruders of energy-bearing materials and may be used for making pyrotechnical cords from pre-compacted pellets. Proposed device comprises container with central guide channel and blind spline. Male die is arranged coaxially in said container. Reducing female die with through forming orifice adjoins the container end. Detachable ring is provided for geometrical closure of container with female die. Replaceable cardboard tube is fitted coaxially in container blind axial groove for gapless fitting of preformed pellet in press toolage axis. |
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Invention relates to press equipment designed, mainly, to remove fluid from carried material. Proposed expeller comprises screw shaft to support helical worm arranged in casing. Material transfer channel is formed between screw shaft, transfer worm and said casing. Screw shaft features surface profile at, at least, one section of transfer channel. |
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Method of forming powder materials with liophobic fluid and device to this end Invention relates to powder metallurgy, particularly, to forming hollow microspheres in the presence of fluid in production of porous structural ceramics. Hollow microspheres are mixed with fluid in the form of aqueous solution of sulfides in chamber for separation of microspheres and separation of integral microspheres from broken microspheres and/or those of different density. Forming is performed in two steps in female die including cylindrical part and conical part shaped to cone with through hole at its vertex. At first step, liquid level is decreased by lowering bottom male die. Thereafter, female die is lowered at decreased liquid level. Top and bottom male dies are lifted at a time to compact microspheres by female die conical part. Microspheres and chloride solution are transferred into female die cylindrical part by lifting top male die to effect compaction by bottom male die. Broken microspheres are removed via discharge chamber. |
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Method to manufacture cylinders for cartridge cases and appropriate composition Composition (2), preferably of plant origin, with accurate volume and mass, is supplied to seats (3) of cylindrical forms (4), designed for cylinders (1). Then to produce a cylinder, the composition is pressed in the seat (3) between an upper puncheon (7) and two lower coaxial cylindrical puncheons, one of which is peripheral (6), and the second one - central (5). The peripheral (6) puncheon is installed with the capability of axial sliding in the form (4). The central (5) puncheon is installed with the capability of independent axial sliding in the puncheon (5). The distance between puncheons (5) and (7) determines height of the cylinder. |
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Mould and method of its production Inventions relate to mould intended for moulding antireflection structure on moulded product. Proposed mould comprises flexible polymer film, layer of cured resin arranged thereon and layer of porous aluminium oxide made on aforesaid layer. Porous aluminium oxide layer has reverse prominent surface structure. Said structure has multiple recesses. Size of said recesses, if seen in perpendicular direction to said surface, varies between 10 nm and 500 nm. Flexible roller-shaped mould can be arranged on substrate outer surface. Said mould is used to form antireflection structure on polarisation plate. For this, said plate is displaced relative to mould. Note here that prior to forming said structure, polarisation plate axis is properly arranged parallel with roller perimetre, roller length making 2πr, where r is roller radius. |
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Invention to material forming and may be used for making pellets from coal fines, peat grit, chips, etc. Proposed press comprises casing to house shaft with forming wheel mounted off-center. Said wheel is arranged between top and bottom flanges. Top flange has offloading opening and check opening arranged there above in bottom flange. Forming wheel is rigidly fitted on shaft, its axis being offset relative to casing axis. Said shaft is installed at plates with bearings, adjustment links and oval holes. Said plates are secured by means of studs and nuts at top and bottom flanges. Flanges are secured to casing. Plate teeth are regularly located on forming wheel outer side. Teeth side surfaces are inclined toward pellet exit through a definite angle to interact with plate teeth of second forming wheel. Second wheel is arranged in casing between top and bottom flanges with minimum clearance to run free therein. Second wheel teeth are regularly spaced on inner surface at the same spacing and with the same inclination at angle a to direction of rotation. |
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Invention relates to metal forming equipment, particularly, to presses with electromagnetic transfer of pressure to plunger or plate. Electric press comprises bed, stator with excitation winding, slide, rod and reverse stroke system. Stator consists of transverse rod carrying excitation winding and two lengthwise round-section rods. Armature winding is arranged on the latter. Said slide is composed of two cylinders with round bores. Said cylinders are jointed by cross-arms. Axes of round bores are shifted relative to those of cylinders toward slide edges. |
Another patent 2513885.