32results about How to "Keep the structure" patented technology

The invention relates to a method for quickly eliminating waste materials and remaining iron in a furnace during blast furnace overhaul. The method is a quickly eliminating method for mechanically detaching waste materials and carbon bricks in a furnace on the premise that a blast furnace shell is locally changed, particularly for mechanically detaching and cleaning furnace materials and carbon brick refractory materials on the premise that the blast furnace shell is locally changed, and moreover synchronously knocking and crushing remaining iron clots in the furnace by means of detaching and falling of the upper cooling wall, and removing both remaining iron clots and waste materials out of the furnace by virtue of a grab excavator. The method has the characteristics of use of few labors, high detaching speed, convenience in operation, quick construction, safe construction and the like, and can be used for increasing the speed for cleaning waste materials in the furnace in the process of blast furnace overhaul. Compared with traditional manual detaching and cleaning mode, the method has the advantages that the speed for cleaning waste materials and remaining iron in the furnace during blast furnace overhaul can be increased and the safety factor of the process of constructing in the blast furnace can be improved.

The invention provides an air valve steel for an internal combustion engine. The air valve steel comprises the following components in percentage by weight: 22-24 percent of Cr, 13-15 percent of Ni, 3.5-4.5 percetn of Mn, 2-3 percent of Nb, 1.5-2 percent of Mo, 0.1-0.2 percent of Si, 1.5-2 percent of Si-B-C-N, 0-0.1 percent of C, 0-0.1 percent of N, 0-0.02 percent of P, 0-0.02 percent of S and the balance of Fe. The air valve steel for the internal combustion engine provided by the invention is austenitic steel into which 1.5-2 percent by weight of Si-B-C-N is added, so that the high-temperature strength, oxidation resistance, corrosion resistance and abrasion resistance of the austenitic steel can be enhanced by using the Si-B-C-N, and the austenitic steel can reach the using performance of a high-load air valve of an internal combustion engine.

The invention relates to a flexible tool for cementing and crimping of aerospace power transformers, and belongs to the technical field of flexible tooling. Including bottom plate, spacer, pressing block, screw, locking piece, upper plate, slider, handle and column; the spacer is placed on the bottom plate; the lower surface of the pressing block is facing the upper surface of the The transformer magnetic core is placed between the blocks; the upper plate is fixedly connected to the pressing block; the column is fixedly connected to the upper plate, and the column is fixedly connected to the bottom plate. The position of the tooling of the present invention is accurately placed; the locking block of the present invention can satisfy various directions of rotation adjustment of the pressing block before pressing, and the pressing block is locked after pressing; the tooling of the present invention is easy to operate and has strong practicability. It is reusable and economical; on the premise of ensuring the quality of cementation, it can improve production efficiency, reduce production error rate, improve product reliability and reduce costs.

The invention provides an air valve steel for an internal combustion engine. The air valve steel comprises the following components in percentage by weight: 22-24 percent of Cr, 13-15 percent of Ni, 3.5-4.5 percetn of Mn, 2-3 percent of Nb, 1.5-2 percent of Mo, 0.1-0.2 percent of Si, 1.5-2 percent of Si-B-C-N, 0-0.1 percent of C, 0-0.1 percent of N, 0-0.02 percent of P, 0-0.02 percent of S and the balance of Fe. The air valve steel for the internal combustion engine provided by the invention is austenitic steel into which 1.5-2 percent by weight of Si-B-C-N is added, so that the high-temperature strength, oxidation resistance, corrosion resistance and abrasion resistance of the austenitic steel can be enhanced by using the Si-B-C-N, and the austenitic steel can reach the using performance of a high-load air valve of an internal combustion engine.

The present application provides an image feature extraction method, which first receives an image input by a user; then performs registration on the image input by the user to obtain a registered image; and then constructs multiple structured structures for the registered image sub-image; then adopt the feature model obtained by multi-model training to extract the visual features of each of the structured sub-images; then carry out structural fusion of the visual features of the multiple structured sub-images to obtain structured feature data; finally A model obtained through structured model training is used to perform operations on the structured feature data to obtain image feature data. Compared with the prior art, the image feature data obtained in this application are feature vectors. Since the feature vector and the model maintain the structural characteristics of the image during the training process, the image feature data has higher accuracy and reliability. Recognition, the application in image recognition, especially face recognition, will have higher accuracy, so as to obtain better recognition effect.

The invention relates to an aluminum-wood composite profile, which comprises an aluminum substrate and a wooden substrate. The aluminum substrate is provided with a groove for accommodating the wooden substrate. The groove is surrounded by a bottom plate, a first side plate and a second side plate. In this way, the first side plate is provided with a first bend that bends inward, and the inner side of the second side plate is provided with a first protrusion and a second protrusion, and the first protrusion is located between the second side plate and the bottom plate. One end of the connection; the second protrusion is located in the groove, and there is a distance from the first protrusion; the length of the second protrusion is smaller than the length of the first protrusion; a gap is provided on the outside of the second side plate; the wooden base material One side is provided with a protruding outward protruding corner that cooperates with the bending, and the other side is provided with a first concave surface and a second concave surface that cooperate with the first protrusion and the second protrusion. When installing the aluminum-wood composite profile provided by the present invention, it is only necessary to open the first side plate, fill the wooden base material into the groove and press the second side plate. The actual operation is simple, time-saving and labor-saving.

The invention discloses a host identity legality detection method, a detection device and an identity detection device, wherein the host identity legality detection method includes the following steps: acquiring the time offset of several moments of the host to be detected; The corresponding time offset obtains the time offset rate of the host to be detected; the identity legitimacy of the host to be detected is detected according to the time offset rate. Because the clock oscillation frequency of different hosts is different, each host on the network has a unique and fixed clock skew rate, and the clock skew rate of the host has nothing to do with the host's location, IP address, network topology and measurement time , has a certain stability. Therefore, detecting the legality of the host's identity through the clock skew rate of the host can solve the problem in the prior art that the reliability of identifying the legality of the host's identity with the IP address or MAC address is relatively low. low problem.

The invention discloses a novel efficient protection information substation based on IEC61850 standard and an implementation method thereof. A spacer-layer network interface of an information substation receives an uplink MMS message of a relay protection device; a server process replaces a domain name element in an uplink MMS original message with a domain name of the dispatched-distributed protection information substation; a gateway network interface sends the uplink MMS message to dispatch; the gateway network interface receives a downlink MMS message of the dispatch; the server process converts the domain name element in the downlink MMS message into a corresponding relay protection device domain name; and the spacer-layer network interface directly sends the downlink MMS message to the relay protection device. The novel efficient protection information substation based on IEC61850 standard and the implementation method thereof in the invention greatly improve the data processingefficiency and processing capacity of the protection information sub-station; true to the original message sent on the relay protection device, the structure of the original message is kept unchanged;faults can be located rapidly; moreover, the memory resource used is less; configuration update and re-debugging are not required in extension and renovation of a transformer substation.

The invention discloses an internal field intensity balancing method for medium-voltage mutual inductor. The method comprises the following steps: performing region partition according to a field intensity distribution situation between a primary winding and a secondary winding obtained through structural analysis of the mutual inductor; winding the outermost layer of the primary winding with semiconductor crinkled paper of different surface resistance values, wherein the semiconductor crinkled paper of lower surface resistance values is wound in regions with higher field intensities between the primary winding and secondary winding, and the semiconductor crinkled paper of larger surface resistance values is wound in regions with lower field intensities between the primary winding and secondary winding; and assembling the primary winding and the secondary winding, and filling the space between the primary winding and the secondary winding with a main insulator. Through adoption of the method, the field intensities between the primary winding and the secondary winding can be balanced; the partial discharge amount is reduced; the original structures of the primary winding and the secondary winding are kept constant; and the parameters of the medium-voltage mutual inductor are not reduced.

The invention discloses a HEMT-based annular opening terahertz amplitude modulator and a manufacturing method thereof. Electrodes; the modulation array is composed of M×N modulation array elements arranged periodically, the modulation array element is composed of 4 open circular structural units, and the opening of the structural unit is matched with a high electron mobility transistor, the high electron mobility transistor The gate of the gate is connected to the Schottky electrode through the gate feeder and then connected to the negative electrode of the power supply. The source and drain of the high electron mobility transistor are respectively connected to both sides of the opening of the structural unit, and the structural unit is connected to the ohmic electrode through the source-drain feeder. Positive power supply. The supersurface resonant mode is converted by controlling the high electron mobility transistor with an external bias voltage, and the fast amplitude modulation of the terahertz wave propagating in free space is realized, and the different modes of the structural unit are mutually converted to achieve the modulation of multiple frequency points.

The invention relates to a method for quickly eliminating waste materials and remaining iron in a furnace during blast furnace overhaul. The method is a quickly eliminating method for mechanically detaching waste materials and carbon bricks in a furnace on the premise that a blast furnace shell is locally changed, particularly for mechanically detaching and cleaning furnace materials and carbon brick refractory materials on the premise that the blast furnace shell is locally changed, and moreover synchronously knocking and crushing remaining iron clots in the furnace by means of detaching and falling of the upper cooling wall, and removing both remaining iron clots and waste materials out of the furnace by virtue of a grab excavator. The method has the characteristics of use of few labors, high detaching speed, convenience in operation, quick construction, safe construction and the like, and can be used for increasing the speed for cleaning waste materials in the furnace in the process of blast furnace overhaul. Compared with traditional manual detaching and cleaning mode, the method has the advantages that the speed for cleaning waste materials and remaining iron in the furnace during blast furnace overhaul can be increased and the safety factor of the process of constructing in the blast furnace can be improved.

The invention relates to a miniaturized constant-flow water distribution structure and a detection device with the same, and belongs to the technical field of oilfield fine layered water injection. The miniaturized constant-flow water distribution structure provided by the invention comprises a pipe body, a constant-flow elastic part and a valve part, wherein the pipe body is internally provided with a flow passing channel; the constant-flow elastic part comprises a body, an elastic part, a transmission part and an opening part, wherein the body is internally with a compressible pressure cavity, the opening part and the transmission part are located in the pressure cavity, the elastic part is located in the pressure cavity, one end of the elastic part is connected with the inner wall of the pressure cavity, the other end of the elastic part is connected with the transmission part, and the transmission part can extend out of or retract back to the pressure cavity through the elastic part; and the interior of the flow passing channel communicates with the outer surface of the transmission part of the constant-flow elastic part, and the transmission part is in transmission connectionwith the valve part. The constant-flow water distribution structure is designed in a miniaturized mode, the original structure of a water distributor is kept unchanged, and the miniaturized constant-flow water distribution structure can be matched with other testers in use, and is reliable and convenient to use on site.

The invention discloses an identity legality detection method and device of a host and identity detection equipment. The identity legality detection method of the host comprises the following steps: acquiring time offsets of a to-be-detected host at a plurality of moments; Obtaining the time migration rate of the to-be-detected host according to the plurality of moments and the time migration corresponding to each moment; And detecting the identity legality of the to-be-detected host according to the time migration rate. The clock oscillation frequencies of different hosts are different. eachhost on the network has a unique one; Fixed clock offset rate, the clock offset rate of the host and the position of the host are increased; The IP address, the network topology and the measurement time are irrelevant, and certain stability is achieved, so that the identity legality of the host is detected through the clock offset rate of the host, and the problem that in the prior art, the reliability is low when the identity legality of the host is recognized through the IP address or the MAC address can be solved.

The invention provides a connecting bracket for automobiles. The connecting bracket comprises a suspension bracket mounting seat and an air bag mounting seat, wherein the suspension bracket mounting seat consists of a suspension bracket lower mounting plate, a suspension bracket upper mounting plate connected with the suspension bracket lower mounting plate in a welding manner, and a suspension bracket upper reinforcing plate welded to the suspension bracket upper mounting plate; and the air bag mounting seat consists of an air bag mounting plate and an air bag mounting supporting seat connected with the air bag mounting plate in a welding manner. Compared with correlation techniques, the connecting bracket disclosed by the invention has the beneficial effects that by adopting the structure, the assembly is convenient, no welding deformation exists, the interchangeability is high, and different air suspensions can be matched by replacing different suspension bracket mounting seats and air bag mounting seats under the condition that the structure of a crossbeam is guaranteed unchanged.