摘要:
The invention relates to a method for lubricating rollers, particularly for lubricating the nip in a roll stand for a rolled strip, wherein water is supplied via at least one first supply line (1), and oil is supplied via a second supply line (2) to at least one mixing element (3). The water and oil are mixed in the mixing element (3), and the mixture of water and oil is supplied to a spraying element (4), by means of which the mixture is sprayed onto at least one working roller (5, 6) or support roller (12, 13) of a roll stand (7). In order to ensure a reproducible supply of the rollers with the water/oil mixture in an efficient manner, the invention proposes that a cleaning medium, such as hot water or water vapor be supplied via at least one third supply line (8) of one of the two other supply lines (1, 2), and/or of the mixing element (3) at defined time intervals, or as a function of a process status of the rolling process. The invention further relates to a device for lubricating rollers, particularly for carrying out the method.
摘要:
The invention relates to a strand guiding device and a method for guiding a metal strip, in particular a metal strip that has not yet solidified right through, in a continuous casting installation. Known strand guiding devices comprise a segment frame and at least one pair of opposing guiding rollers, between which the metal strip is guided. At least one of the guiding rollers takes the form of at least two part-rollers 122, 124 arranged next to each other. The part-rollers are mounted on the segment frame 110 by means of two outer bearings 132, 134 and at least one common intermediate bearing 133. To provide at least partial compensation for the segment frame 110 springing up or bending, caused indirectly by the ferrostatic pressure in the interior of the metal strip that is not yet solidified right through and occurring in particular in the region of the intermediate hearing 133 during the transport of the metal strip between the guiding rollers 120, three different means are proposed according to the invention, means which can also to used in combination will one another. These means are a bowing of the intermediately mounted guiding roller and/or a more yielding form of the outer bearings 132, 134 in comparison with the intermediate bearing 133 and/or a greater distance A1 between the segment frame 110 and the centre axis M of the part-rollers 122, 124 in the case of the intermediate bearing 133 in comparison with the outer bearings 132, 134.
摘要:
A method of fabricating a steel strip (1) including a) providing a functional relationship in a machine controller (8) between a slab casting speed (v) or the mass flow as a product of casting speed and strip thickness or as a product of strip speed and strip thickness and the strip temperature (t) downstream of the last rolling stand (7) for a different number (n) of active rolling stands (7) and different final thicknesses, b) determining or specifying the casting speed (v) or the mass flow (v×H) and feeding the determined value into the machine controller (8), and c) determining the optimum number of active rolling stands (7) and the final thicknesses and thickness reductions which can be rolled with them in the rolling train using the functional profiles.
摘要:
A radar device, particularly for measuring a speed above ground, includes a high-frequency circuit and an antenna. It is provided that the high-frequency circuit is arranged as a high-frequency chip, which has a plurality of antenna outputs, which are connected to the horn antennas via the antenna lines.
摘要:
The invention pertains to a method for manufacturing a metal strip (1) by means of continuous casting and rolling, wherein a thin slab (3) is initially cast in a casting machine (2) and this thin slab is subsequently rolled in at least one rolling train (4, 5) by utilizing the primary heat of the casting process, wherein a continuous manufacture of the metal strip (1) (continuous rolling) can be realized in a first operating mode by directly coupling the casting machine (2) to the at least one rolling train (4, 5), and wherein a discontinuous manufacture of the metal strip (1) (batch rolling) can be realized in a second operating mode by decoupling the casting machine (2) from the at least one rolling train (4, 5). In order to increase the flexibility of the system, the invention proposes that cast slabs (3) or preliminary strips (3′) are removed from the main transport line (6) downstream of the casting machine (2) referred to the strip transport direction (F) in the discontinuous manufacture of the metal strip (1), stored and subsequently transported back into the main transport line (6), wherein the removed slabs (3) or preliminary strips (3′) are heated to a desired temperature or maintained at a desired temperature prior to the transport back into the main transport line (6). The invention furthermore pertains to a device for manufacturing a metal strip (1) by means of continuous casting and rolling.
摘要:
A method and a device for adaptively controlling power in a radar device having a radar transmitter and a radar receiver are provided, in particular for applications in vehicles. The radar signals are emitted, and radar signals reflected off of target objects are received and checked for irregularities. The transmitting power of the radar transmitter is reduced when irregularities occur which are attributable to interference caused by neighboring radar transmitters.
摘要:
The present invention relates to a method for sensing information about the position and/or movements of the body of a living being or a part of the body inside the body, in particular for use in a motor vehicle. The method includes the steps: Send (18) an electromagnetic signal (15) that includes, according to the invention, frequencies in the radar range, to a predetermined area of the body of a living being, Receive (20) an electromagnetic signal (22) reflected from the area of the body, Evaluate (30) the captured receive signal (22) with regard for the difference in delay time and/or frequency relative to the transmit signal (15) to determine the information. With the method according to the present invention, the breathing and heart rate and the position of the body of a driver of a motor vehicle can be monitored in contactless fashion during the drive.
摘要:
In order to produce a planar antenna array in a radar sensor with a multitude of microstrip feeder lines and a multitude of coupling slots for emitting microwave energy into open space, which achieves a favorable antenna efficiency when embodied in a planar design using LTCC technology, the invention proposes embodying the feeder lines and the coupling slots in a multilayer ceramic substrate produced by means of the LTCC thick layer technique with an upper and a lower grounded layer, as well as enclosing the feeder lines and the coupling slots with plated-through contacts from the upper grounded layer to the lower one.
摘要:
A circuit is provided for generating a modulated laser diode control signal from a laser diode control signal, the circuit having an RF modulator for modulating the laser diode control signal with a modulation signal; the circuit having adjustment means for adjusting the RF modulator; the adjustment means being configured or configurable as a function of at least one laser diode operating information item. Furthermore, a laser diode receptacle is described as having such a circuit, a projector, particularly an image projector having such a laser diode receptacle, an image projector having such a laser diode receptacle and a laser diode, as well as a method for adjusting an RF modulator of such a circuit and a method for producing such a laser diode receptacle.
摘要:
A method is described for determining information about a rotational speed of a compressor, in particular a turbocharger, by providing a measuring signal, in particular a microwave measuring signal, which is directed at a compressor impeller of the compressor, so that the measuring signal is reflected on revolving blades of the compressor impeller, detecting the measuring signal reflected by one or more blades, and determining the information about the rotational speed as a function of the reflected measuring signal.