Abstract: A primary object of this invention is to provide a continuous casting method by which a slab of excellent internal quality can be obtained even if the casting speed is changed. In this invention, upon continuous casting with two pairs of the reduction rolls arranged along a casting direction and support rolls arranged between the reduction rolls, when a casting speed is reduced compared to a state where combination of reduction with reduction rolls at a first stage on an unsolidified portion of the slab and reduction with reduction rolls at a second stage on a solidified portion thereof is employed, the combination is switched to combination of reduction with the reduction rolls at the first stage on a portion of the slab at an end of solidification and the reduction with the reduction rolls at the second stage on the solidified portion thereof.

Abstract: A control device (1) for an oscillating table (6), comprising: —a closed and pressurized hydraulic circuit (20), —a hydraulic actuator (21) connected to said hydraulic circuit (20) and adapted to be connected to the mobile part of the oscillating table (6) to adjust the position thereof, in which said hydraulic actuator (21) is a double-acting cylinder having a first chamber (21a) and a second chamber (21b) delimited from each other by a sliding piston (22) rigidly connected to a first rod (31a) which is rigidly restrainable to said mobile part, in which said hydraulic circuit (20) comprises at least one reversible hydraulic pump (9) directly connected to at least one of said first chamber (21a) and second chamber (21b).

Abstract: A system comprising at least one furnace including a melt containing vessel; an intermediate casting product station coupled to the at least one furnace and operable to receive a molten metal from the at least one furnace, the intermediate casting product station including a casting pit, at least one moveable platen disposed in the casting pit, an array of exhaust ports about at least a top periphery of the casting pit, and an array of gas introduction ports about at least the top periphery of the casting pit; and an inert gas source operable to supply an inert gas to the array of gas introduction ports.

Abstract: A rotary roller surface cleaning method and a rotary roller surface cleaning apparatus which, when foreign matter is detected on a surface of a rotary roller of a quenched ribbon manufacturing apparatus, remove the foreign matter by irradiating the foreign matter with a laser having an output value corresponding to a thickness of the foreign matter. At least one of a rotation speed of the rotary roller and a laser response time is adjusted such that the rotation speed of the rotary roller and the laser response time satisfy a relational expression V×S?D/1000 (D?0.1 mm), where the rotation speed of the rotary roller is V (m/sec), the laser response time is S (sec), and a length of the foreign matter along a circumferential direction of the rotary roller is D (mm).

Abstract: A device is provided for controlling the advancing movement of a casting plunger in a casting chamber of a cold-chamber die casting machine by way of an actuating signal, the advancing movement comprising a chamber filling movement phase from a partial filling position, with a partially filled casting chamber starting volume, to a full filling position, with a filled casting chamber remaining volume. In the device, a respective associated progression of an actuating signal is provided for different specified sets of values of a plurality of process parameters that influence the movement of the molten material in the casting chamber during the chamber filling movement phase, which progression is defined as the most suitable actuating signal progression for the particular set of parameter values.

Abstract: The Present invention provides an arc melting furnace apparatus and a method of controlling arc discharge, in which a melt material having been melted can be stirred efficiently, avoiding labor intensive work. The furnace is provided with a mold 3 having a recess 3a and provided in a melting chamber 2, a non-consumable discharge electrode 5 for heating and melting a melt material accommodated in the recess 3a, a power source unit 10 for supplying electric power to the non-consumable discharge electrode 5, and a control device 11 which controls the power source unit to control output intensity of the arc discharge from the non-consumable discharge electrode. The control device 11 controls output current from the power source unit 10 and its current frequency to vary the output intensity of the arc discharge from the non-consumable discharge electrode 5 and stir a molten metal resulting from heating and melting the melt material.

Abstract: The inflow of liquid metal into a continuous casting mold is set by a closure device. A measured actual meniscus value is fed to a controller determining a closure device target position on the basis of the actual and a corresponding target value. The measured actual value is fed to a disturbance variable compensator. The target position/corrected target position or a corresponding actual value are further fed to the disturbance variable compensator which determines the disturbance variable compensation value. The disturbance variable compensator has a model of the continuous casting mold for determining an expected value. A number of oscillating compensators determine a frequency disturbance proportion. The sum of the frequency disturbance proportions corresponds to the disturbance variable compensation value. The disturbance variable compensator has a jump determiner, by which it determines the jump compensation value by integrating the difference.

Abstract: A process is provided for forming an airfoil for a gas turbine engine involving: forming a casting of a gas turbine engine airfoil having a main wall and an interior cavity, the main wall having a wall thickness extending from an external surface of the outer wall to the interior cavity, an outer section of the main wall extending from a location between a base and a tip of the airfoil casting to the tip having a wall thickness greater than a final thickness. The process may further involve effecting movement, using a computer system, of a material removal apparatus and the casting relative to one another such that a layer of material is removed from the casting at one or more radial portions along the main wall of the casting.

Abstract: A system for storage and retrieval of items includes a shelving rack configured to store the items. The shelving rack has a plurality of vertical levels. The system includes at least one robotic carriage operable to move horizontally. The robotic carriage includes an extendable arm that extends horizontally and vertically to lift the items from an input slot and to carry and place the items on the shelving rack. The robotic carriage is also operable to lift the items from the shelving rack and to carry and place the items on a workstation. The workstation is positioned in close proximity to the shelving rack. By locating the workstation in close proximity to the shelving rack, the items may be transferred from the shelving rack to the workstation without requiring conveyors and ram drives.

Abstract: An article includes a first portion having a first grain pattern and a second portion having a second grain pattern different from the first grain pattern. The article is a cast article such as a turbine engine blade.

Abstract: A device and method are disclosed for positioning at least one of two casting rolls in a continuous casting process for producing a metal strip. The device and the method allow adjusting or modifying the casting gap between the casting rolls during the ongoing operation, thereby having an influence on the strip thickness and the strip profile of the produced metal strip.

Abstract: Surface 27 of molten metal within a mold is constantly monitored by camera 25. Camera 25 records the surface from an obliquely upward position of the mold in an area that does not affect the casting process. Various analyzing frames such as analysis band 35, molten metal pattern 37, and injection monitoring part 43, are set with respect to the information recorded by the camera 25. The analysis band 35 includes the surface (molten metal part 31c), and is set to a predetermined width so that the direction of surface change is in the longitudinal direction. The width of the analysis band 35 is set as wide as possible in a range that does not block the discharge part (molten metal part 31a). Inside the analysis band 35, the rate of change of the binary data is calculated by the analyzing part.

Abstract: A die casting process using pattern recognition techniques to identify those die castings manufactured under conditions likely to produce a die casting which would subsequently prove unacceptable for use. By promptly identifying such die castings, they may be discarded before being shipped to a remote facility for further processing. As a result, the rejection rate of die castings at the remote facility may be reduced and the raw materials used to form the discarded die castings may be more readily recycled.

Abstract: A method for loosening a jacket includes the steps of pouring a molten metal into a mold having a jacket attached on its outer surface, while conveying the mold; cooling the mold after pouring while conveying the mold, after the step of pouring; and applying vibration to the jacket after the step of cooling.

Abstract: A device that holds and replaces a casting plate in a continuous casting installation metallurgical vessel contains a detector-limit switch assembly that automatically moves a casting plate to the casting position or to the sealing position, depending on whether a replacement plate is on standby on the device or not. Casting plates used with the invention are provided with a metallic casing. The casting plates and metallic casing are configured to interact with the detector contained in the device.

Abstract: An ingot includes at least two metals selected from copper, tin, zinc and bismuth, wherein: (a) the ingot is a mechanical ingot, the at least two metals are 40-95 wt. % copper, 3-80 wt. % tin, 1-40 wt. % bismuth and/or 1-80 wt. % zinc, and other metals are present in a collective amount of 0-2 wt. %; or (b) the ingot is a cast ingot, the at least two metals are 40-80 wt. % copper, 3-80 wt. % tin, 1-40 wt. % bismuth and/or 1-80 wt. % zinc, and other metals are present in a collective amount of 0-2 wt. %, provided that when copper is present in the cast ingot in an amount greater than 69 wt. %, zinc is present in an amount less than 30 wt. %. Methods for preparing and casting the ingot are also disclosed, as is a system for casting a copper-bismuth alloy.

Abstract: A casting method to produce a casting and a press used for the casting method, using a mold which forms a cavity in a shape of a casting, so as to produce a casting by overlapping a lower mold with an upper mold, which molds are molded by a molding method, the casting method comprises the steps of: pouring into the lower mold a quantity of molten metal required to produce a casting; lowering the upper mold at a predetermined first speed until the upper mold reaches a predetermined position just before the upper mold starts contacting a surface of the molten metal; lowering the upper mold at a predetermined second speed after the upper mold is further lowered beyond the predetermined position; detecting and obtaining information on the status of the upper mold which overlaps the lower mold; and stopping the lowering of the upper mold when detecting the information on the status of the upper mold that shows that the predetermined conditions are met.

Abstract: An investment casting system includes a computer controlled mold transfer device movable between at least three stations, including a mold receiving station. A mold transfer station includes a mold suspended from a first horizontally extending arm of the mold transfer device engaging an intermediate transfer device to transfer the mold to the intermediate transfer device. A storage station has a storage rack receiving the mold following a material coating phase. A robot in communication with the intermediate transfer device is programmed to position the mold in any of multiple material coating stations during the material coating phase. The mold is accessible for removal from the system at any stage of completion by direction of a computer control system.

Abstract: A device for determining the integrity of a greensand mold comprising two or more measurement sensors or plates on a support or supports. The support may comprise a frame straddling a mold production line between the mold machine and the pour station. When the production line is stopped, the measurement sensors or plates are extended to contact opposing sides of a mold and determine electrical characteristics of the mold, including capacitance and inductance. By comparing the electrical characteristics of the mold to the electrical characteristics of recently tested molds in the production line, a determination can be made whether the mold should be used at the pour station.

Abstract: A die casting process using pattern recognition techniques to identify those die castings manufactured under conditions likely to produce a die casting which would subsequently prove unacceptable for use. By promptly identifying such die castings, they may be discarded before being shipped to a remote facility for further processing. As a result, the rejection rate of die castings at the remote facility may be reduced and the raw materials used to form the discarded die castings may be more readily recycled.

Abstract: An investment casting system includes a computer controlled mold transfer device movable between at least three stations, including a mold receiving station. A mold transfer station includes a mold suspended from a first horizontally extending arm of the mold transfer device engaging an intermediate transfer device to transfer the mold to the intermediate transfer device. A storage station has a storage rack receiving the mold following a material coating phase. A robot in communication with the intermediate transfer device is programmed to position the mold in any of multiple material coating stations during the material coating phase. The mold is accessible for removal from the system at any stage of completion by direction of a computer control system.

Abstract: A rolling mill for producing rolled rolling stock is operated in a continuous manner by integrally forming the rolling stock during scheduled operation from a supply device which supplies the stock to the rolling mill to one finishing rolling train arranged downstream of the rolling stock supply device by guiding the stock into the finishing rolling train continuously and rolling it to form a first outflow product. The operation is monitored for a deviation from the scheduled operation that influences the rolling process, wherein in case of a deviation measures are taken to examine whether a second outflow product, which is different from the first outflow product, can still be produced. If the second outflow product cannot be produced, the operation of the rolling mill is altered from a continuous operation to a discontinuous operation, whereby production failures caused by undesired process deviations in a rolling mill can be reduced.

Abstract: An apparatus for continuously casting thin strip includes a caster having a pair of casting rolls having a nip there between capable of delivering cast strip downwardly from the nip and an first enclosure capable of forming a protective atmosphere into which the strip can be formed in loop to extend over a plurality of rollers into pinch rolls with the strip having a strain of less than 0.4%, which may be provided by a plurality of rollers at entry of the strip into the pinch rolls to carry the strip into the pinch rolls, with at least a first entry roller having a diameter between 200 and 650 millimeters and being below a majority of other rollers.

Abstract: A method of and a device for determining the position of the solidification point (1a) in a strand (1) during continuous casting of liquid metals, in particular of steel, lead to precise results, while an indirect measurement of a movable amount of a core liquid volume per unit of length is carried out by direct measurement of generated process parameters by force and/or path signals on fixed or adjustable individual support rollers or groups of fixed or adjustable support roller pairs, and based on the measurement values, a calculation model for a momentary position of the solidification point (1a) is produced, based on which, changeable casting parameters are continuously adjusted.

Abstract: A die casting process using pattern recognition techniques to identify those die castings manufactured under conditions likely to produce a die casting which would subsequently prove unacceptable for use. By promptly identifying such die castings, they may be discarded before being shipped to a remote facility for further processing. As a result, the rejection rate of die castings at the remote facility may be reduced and the raw materials used to form the discarded die castings may be more readily recycled.

Abstract: A twin roll caster and a method for operating comprising two casting rolls that delimit a casting gap on its longitudinal sides; two side plates that delimit the casting gap on its narrow sides; and at least one axial actuator associated with one of the side plates and impacting the respective side plate on its rear turned away from the front sides of the casting rolls with a force axially aligned toward the casting gap pressing the side plate against the front sides of the casting rolls. An axial actuator acts on the rear side of the side plate by means of a joint provided to adjust an angular offset between the normal level relative to the effective direction of the force applied by the axial actuator to the side plate and the normal level relative to the axes of rotation of the casting rolls.

Abstract: A method of controlling composition of a molten copper or a molten copper alloy during continuous cast, comprising the steps of determining continuously specific resistance of the molten copper or the molten copper alloy; calculating the composition of the molten copper or the molten copper alloy based on relationships between specific resistance of the molten copper or the molten copper alloy and each constituent which are preliminarily comprehended; and controlling the composition of the molten copper or the molten copper alloy based on the calculated composition. It is possible to consider temperature or content of dissolved oxygen to calculate the composition.

Abstract: This invention provides a casting method for a casting of high quality and a press for casting such a casting by controlling the speed of the press that presses a mold in the pressing process, after a upper mold overlaps a lower mold. The invention provides a casting method for a casting and the press for that casting method. They use the lower mold having a concave portion that has a shape of a casting, and the upper mold having a convex portion that has a shape of the casting, which convex portion forms a cavity to produce the casting by overlapping the lower mold.

Abstract: A continuous casting plant in particular for long steel products is provided with a mould (1), from which a cast strand (2) is continuously cast. The cast strand (2) is guided along a, in particular curved, guideway formed by guide rollers (11, 12, 13, 14) arranged one after the other, and at the same time in a cooling chamber having spray members. The guide rollers (12, 13, 14) and/or the spray members are contained in a plurality of centring modules (10) or spray modules (3) arranged one after the other and are adjustable in a controlled manner substantially concentrically with respect to the desired axis of the cast strand. As a result, on the one hand, the risk of thermally overloading the rollers and damaging the strand surface is considerably reduced and symmetrical cooling is ensured.

Abstract: A die casting process using pattern recognition techniques to identify those die castings manufactured under conditions likely to produce a die casting which would subsequently prove unacceptable for use. By promptly identifying such die castings, they may be discarded before being shipped to a remote facility for further processing. As a result, the rejection rate of die castings at the remote facility may be reduced and the raw materials used to form the discarded die castings may be more readily recycled.

Abstract: A method of continuously casting thin strip dynamically controlling roll casting surface configuration by controlling the temperature of water flowing through the longitudinal water flow passages in a cylindrical tube thickness of no more than 80 millimeters of counter rotated casting rolls, and varying the speed of the casting rolls with attenuation of the ends of the casting rolls with a casting roll drive system responsive to electrical signals received from sensors during a casting campaign.

Abstract: A method of continuously casting thin strip dynamically controlling roll casting surface configuation by controlling the temperature of water flowing through the longitudinal water flow passages in a cyclindrical tube thickness of no more than 80 millimeters of counter rotated casting rolls, and varying the speed of the casting rolls with attenuation of the ends of the casting rolls with a casting roll drive system responsive to electrical signals received from sensors during a casting campaign.

Abstract: A method for producing a casting die by simple work without requiring any high work skill in which the working days required for producing the casting die can be shortened greatly. A die model suitably employed in this production method, an NC processing system and a processing robot are also provided.

Abstract: To provide an apparatus for cast-product production line that can separate cast product and casting sand without ever using a jumbolized casting-mold disassembling device, and additionally that can intend the downsizing of mold-disassembling unit. An apparatus for cast-product production line has the following jointly: a kneader 94 for kneading casting sand for making mold; a mold maker 3 for making a sand casting mold 2 from the casting sand for making mold, the sand casting mold 2 being provided with a molding cavity 23 for forming a singular cast product or plural products 27; a molten-metal pourer 4 for pouring molten metal into said molding cavity 23 of the sand casting mold 2; and a mold disassembler 5 for disassembling the sand casting mold 2 having undergone molten-metal pouring. Upon disassembling the sand casting mold 2 by the mold disassembler 5, the sand casting mold 2 is disassembled in such a state that the cast product 27 is supported by means of a cast-product supporter element 52.

Abstract: A continuous casting furnace includes a temperature control mechanism for controlling the temperature of a metal casting as it exits a continuous casting mold in order to provide improved characteristics of the metal casting. The temperature control mechanism includes a temperature sensor for sensing the temperature of the metal casting, and a heat source and cooling device for respectively heating and cooling the metal casting in light of the temperature of the metal casting. A control unit determines if the temperature of the metal casting is within a predetermined range and controls the heat source and cooling device accordingly. The heat source may double as a cooling device or the cooling device may be separate from the heat source.

Abstract: The invention relates to a production line for the production of cast parts (M) from a metallic melt, in particular a light molten metal, which takes place in a continuous cycle, comprising a plurality of functional units, including a core production unit (2) for the production of casting cores, a mould assembly unit (3) for assembling casting moulds (G) formed as core packages, a casting unit for filling the molten metal into the casting moulds (G), a cooling unit (5a) for cooling the molten metal respectively contained in the casting moulds (G), and a demoulding unit (5b) for destructive removal of the casting mould (G) from the cast part (M).

Abstract: A device for control of bubbling of a metal bath in a ladle or in another similar metallurgical vessel including a bottom injector linked to a source of supply of pressurized stirring gas to be injected with aid of a pipe provided with a facility for adjusting flow rate, at least one vibration sensor mounted on the vessel itself or on a support frame, a signal processing unit processing a vibratory signal gathered by the sensor, and wherein the signal processing unit includes at least, and in successive order of processing of the vibratory signal, a high-pass analog filter, a digitizer, a digital filter calibrated on vibratory responses of the ladle, and a computer for computing a sliding temporal quadratic mean of RMS type.

Abstract: A continuous casting apparatus having a pair of drums rotating in opposite directions, and bearing housings for rotatably supporting drum shafts protruding from opposite end surfaces of the drums, the continuous casting apparatus comprising, on a side of at least one of the drums: a base portion; an arm having an end portion on which the bearing housing is installed fixedly, and having an opposite end portion pivotably supported by the base portion; and an adjusting device for pivoting the arm to move the pair of drums toward or away from each other.

Abstract: A mold handling system for carrying and transporting sand molds comprises a mold handling conveyor with multiple mold exits to provide different outputs for the sand molds. The mold handling system may include flags which can be used to mark selected molds to segregate the sand molds into different groups. A control system responds to flag sensors and tracks the molds to selectively control output of sand molds through the mold exits. Methods of handling sand molds using a mold handling system are also disclosed.

Abstract: A method of and a device for determining the position of the solidification point (1a) in a strand (1) during continuous casting of liquid metals, in particular of steel, lead to precise results, while an indirect measurement of a movable amount of a core liquid volume per unit of length is carried out by direct measurement of generated process parameters by force and/or path signals on fixed or adjustable individual support rollers or groups of fixed or adjustable support roller pairs, and based on the measurement values, a calculation model for a momentary position of the solidification point (1a) is produced, based on which, changeable casting parameters are continuously adjusted.

Abstract: A controller for at least one heater utilized in an injection molding system, which includes a regulated voltage supply that is electrically connected to the at least one heater utilized in an injection molding system, at least one sensor operatively associated with at least one heater and utilized in an injection molding system, at least one digital signal processor that is operatively connected to the at least one heater utilized in an injection molding system, the regulated voltage supply and the sensor operatively associated with the at least one heater utilized in an injection molding system based on feedback from the at least one sensor.

Abstract: A die opening and closing system includes a fixed die plate holding a fixed die, a moveable die plate holding a moveable die able to move in a horizontal die opening and closing direction with respect to said fixed die plate, only one ball-screw feed mechanism moving said moveable die plate in a die opening and closing direction, and only one balance cylinder system reducing a load of said ball-screw feed mechanism and a die opening and closing method related to the same.

Abstract: A method of operation for an apparatus for making an upper and a lower mold and the apparatus therefore that can prevent a mold from having a wrap or a match plate from being damaged. The apparatus for making an upper and a lower mold of the present invention controls the forward movement of an upper and a lower squeeze member such that when they each move forward to the match plate by means of the squeeze means of the upper and lower molds the difference in the squeeze forces imparted by the upper squeeze means to the upper squeeze member, and the squeeze force imparted by the lower squeeze means to the lower squeeze member, is kept within the predetermined tolerance.

Abstract: The invention provides a gas supply device designed to supply a combustion preventing gas (mixed gas) in which a cover gas for suppressing combustion of molten magnesium held in a melting furnace and a diluting gas for diluting the cover gas are mixed with each other, the gas supply device including a carbon monoxide concentration meter for detecting combustion of a molten metal. The gas supply device further includes a gas introduction device for supplying the combustion preventing gas to the melting furnace in case it is determined that combustion of a molten metal is present, and halts supply of the combustion preventing gas to the melting furnace in case it is determined that combustion of a molten metal is absent.

Abstract: A die casting process using pattern recognition techniques to identify those die castings manufactured under conditions likely to produce a die casting which would subsequently prove unacceptable for use. By promptly identifying such die castings, they may be discarded before being shipped to a remote facility for further processing. As a result, the rejection rate of die castings at the remote facility may be reduced and the raw materials used to form the discarded die castings may be more readily recycled.

Abstract: The present invention relates to a method of production of functionally graded materials based on an incremental melting and solidification process. Its operation principle can be described as follows: the materials (metal elements, alloys or ceramics) are melt by the induction heating in the mould, and the continual granules, powders or wire, or even liquid materials, of another metal alloys are fed to the mould. The heating zone is limited to a small part of the mould. The incremental melting and solidification process proceeds from the bottom to the top of the mould by changing the relative position between the mould and the heating apparatus. Usage of this method ensures the obtainment of components with no particular alloy composition, but with a gradual changing of the chemical composition along the casting.

Abstract: A method to detect the distribution of service temperatures in a technological process that includes the automatic and programmable performance of explorative excursions done by means of an adjustable equipment (1) connected to a structure (2) provided with shutter (3) which contains a pointer device (5) and a radiations sensor (4), which after having detected the thermologic parameters of the process, sends them to computer (9) which processes, visualizes and registers them to control and regulate the distribution of the service temperatures in the course of the process.

Abstract: In an injection mold including at least two mold sections which are movable relative to one another for opening and closing the injection mold and an electronic counter with an actuator and a sensor element supplying, influenced by the actuator, a signal indicative of the number of closings of the injection mold, the sensor element is disposed in a first housing and the electronic counter is disposed outside the first housing and connected to the sensor element via an electrical communication line.

Abstract: An automated reciprocator for applying lubricant to the cavity of a die casting system having a safety bar for preventing the reciprocator from injuring a person or damaging equipment which may be present in the reciprocator travel path. The safety bar is movably carried on the lower side of the reciprocator and includes a sensor to detect relative movement between the safety bar and the reciprocator. The proximity sensor is coupled to a control system. If the safety bar contacts an object as the reciprocator is moving down, the sensor signals the control system and the reciprocator is stopped.

Abstract: A protective gas device for the melting furnaces of pressure die-casting machines, in particular for processing a magnesium melt. A collection container of a mixing device for the components of a protective gas, which covers the melt to prevent oxidation or other damage, is configured as a pressure accumulator and the orifices for feeding the protective gas into the melting furnace are provided with inlet nozzles. Gas flow to the inlet nozzles is regulated by metering devices. The operating pressure is equal to or less than the pressure in the pressure accumulator of the mixing device, but high enough to atomise the jets and produce a turbulent inflow behind the inlet nozzles. Said pressurized protective-gas distribution permits the metering of gas into various furnace chambers or furnaces without repercussions. A uniform concentration of the protective gas can be achieved in all areas by the selective arrangement of the inlet nozzles.