摘要:
Methods and apparatus for programming and sensing a bi-nitride layer trapped-charge memory device in one of a first and second programmed states or one of a first and second erased states, where the first and second programmed states correspond to first and second uniform trapped charge distributions of a first charge type and the first and second erased states correspond to first and second uniform trapped charge distributions of a second charge type.
摘要:
An automotive vehicle having an aperture in the vehicle body in which a glazing, comprising a switchable film laminated between at least two plies of an interlayer material is fitted is disclosed. The plies of interlayer material are laminated between a first ply of glazing material, preferably glass,facing out of the vehicle and a second ply of glazing material, preferably glass, facing into the vehicle. The switchable film comprises first and second electrodes, both in electrical connection with a power supply. The first electrode is capacitively connected to electrical ground on the vehicle body.
摘要:
A power semiconductor component includes a semiconductor body having a beed peripheral surface, a cathode electrode and an anode electrode. A materially joined connection between at least the anode electrode and the semiconductor body is not produced by alloying. The anode electrode has a diameter being greater than the cathode electrode and smaller than the semiconductor body.
摘要:
The invention refers to a method for the reduction of the sag and/or of the different stress profile of a flattened tubular film web produced by a blown film process and made of thermo-plastic synthetic resin, transversely to its longitudinal direction. For the solution of the problem to provide a method according to which the sag and/or the different states of tension transversely to the tubular film web can be easily reduced or eliminated to a maximum degree, the tubular film web is heated along its width and then cooled and/or stretched. Furthermore, the invention refers to an apparatus for carrying out the method.
摘要:
To avoid punch-through breakdown in conventional thyristors in off-state condition, the central zone (1) must be made so thick that at nominal off-state voltage a sufficient distance remains between the space charge region and the opposite pn junction. Contact regions are provided in the invention for drawing off the charge carriers produced during an off-state load condition. These contacts are disposed on the anode and cathode side at the central zone in the vicinity of the anode-side emitter zone (2) and the cathode-side base zone (3). As a result, the space charge region is allowed to be moved closer to the pn junction without the occurrence of a punch-through breakdown.
摘要:
The apparatus includes a spray chamber having a transport device for positioning a billet adjacent a nozzle for spraying a stream of molten metal onto the surface of the billet. The billet is engaged by a tandem arrangement of holding devices which are attached to driven ring gears. With the holding devices engaging the billet rotation of the ring gears rotates the billet about its longitudinal axis as the billet is sprayed with molten metal from the nozzle. As the billet is rotated it is also moved longitudinally by servo-cylinders attached to the ring gears. The servo-cylinders advance and retract in sequence as the ring gears rotate to generate combined longitudinal and rotational movement of the billet adjacent the nozzle. Thus a uniform layer of metal is deposited over length of the billet to form a round billet exclusively by spray-casting.
摘要:
A horizontal continuous casting apparatus for metals, particularly steel, having a supply container in the metal outlet opening of which there is arranged a nozzle brick against which a separation ring rests in sealing manner, and having a continuous casting mold which is connected to the supply container and rests with the edge sides of its side walls in sealing manner against the separation ring. A reliable changing of the passage cross-section of the mold before, during and after the casting is possible in a structurally simple manner. The passage cross-section (A) of the continuous casting mold (30) is adjusted and displacement elements (40) are provided by means of which the position of the side walls (31 to 34) of the continuous casting mold (30) is adjusted. At least one side wall (31 to 34) is moveable parallel and transverse to the center line I of the outlet opening 11.
摘要:
A method for continuous casting of steel in a horizontal casting mode and using a cycle being comprised of an extraction stroke, a holding period, a retraction stroke and another holding period, the retraction speed, the retraction length and the holding period between an extraction stroke and a retraction stroke are maintained constant; and extraction speed and extraction length as well as the holding period between a retraction stroke and the next following extraction stroke are varied for adaptive purposes.
摘要:
A method of horizontal continuous casting of thin and wide ingots. The method includes providing a withdrawal or extraction length of 50 to 300 mm at a speed in excess of 3 meters per second up to 20 meters per second and holding the ingot for 1 to 5 seconds. Further, the ingot can be retracted to correspond to the length reduction due to cooling. The effect of the invention is an improvement in ingot quality.
摘要:
An electrode assembly for a furnace having a refractory lining. The electrode assembly has a conductive casing which houses a replacement body. The casing is sheathed by a conical refractory component with the broad end of the component disposed at the exterior of the furnace and the narrow end adjacent the head of the electrode. The replacement body of the electrode has a central bore, a chamber at the head of the electrode, an annular slit defined between the replacement body, and an outlet through which a cooling fluid is circulated by a suction pump connected to the electrode through the outlet. The electrode head is arranged in the refractory lining of the furnace to provide a space for the deposit of solidified molten melt which forms a protective layer over the electrode head.