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38results about How to "Short connection time" patented technology
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Assembling corridor for vacuum pipe traffic
InactiveCN101054087AReduce volumeImprove operational efficiencyRailway tunnelsRailway componentsCar doorEngineering
The invention discloses a plugging corridor used for the vacuum pipe traffic, which comprises: a tube-shape fixed corridor (6) is equipped in station department with one end embedded in a vacuum pipe (1), and another end is connected with the station platform, junction of the fixed corridor (6) and vacuum pipe (1) is sealed; a telescopic corridor (9) is sealing nested in anterior inner wall of the fixed corridor (6); One end of the flexible mechanism (10) is linked with the telescopic corridor (9), and another end is connected with the fixed corridor (6), and the front end of telescopic corridor (9) fits the peripheral shape around the door (3) of the train carriage (2) and is equipped with sealing strip (11); The middle rear part of the fixed corridor (6)is equipped with a sealing door (7), one pneumatic valve (8)is provided on the sealing door (7) or the fixed corridor (6) wall before the sealing door (7). Within a short period of time, it can accomplish getting on or off of passengers in vacuum pipe, and improves the running efficiency of train with little power consumption and simple structure.
Owner:SOUTHWEST JIAOTONG UNIV
Network connecting method, device and system
InactiveCN105657790AFast connectionShort connection timeAssess restrictionConnection managementNetwork connectionComputer terminal
The invention is suitable for the field of communication and provides a network connecting method, device and system. The method comprises the steps that a stationary network information acquiring request is sent, wherein the stationary network information acquiring request carries terminal state information; stationary network information sent by a server is received, wherein the stationary network information includes network information of a terminal accessable network and a stationary network strategy and is obtained according to the terminal state information; a stationary network process of the terminal accessable network is initiated according to the stationary network strategy and the network information of the terminal accessable network so as to achieve network connection. By means of the network connecting method, device and system, the terminal can quickly initiate the stationary network process on the terminal accessable network according to the stationary network strategy sent by the server and the network information, sent by the server, of the terminal accessable network; in addition, it is not needed to search all frequency bands, so that the network connecting speed is high, and the network connecting time is short.
Owner:SHENZHEN YOUKE YUNLIAN TECH CO LTD
Intelligent access control system and control method
InactiveCN107705399AShort connection timeWith distance recognition functionSubstation equipmentIndividual entry/exit registersMicrocontrollerWireless internet access
The invention discloses an intelligent access control system and a control method. The system comprises a power supply, a microcontroller, a bluetooth module, a wireless internet access module, a datatransmission module and a door lock control module. The power supply, the bluetooth module, the wireless internet access module, the data transmission module and the door lock control module are allconnected to the microcontroller. The intelligent access control system searches for bluetooth signals, automatically judges the distance from a mobile phone and the access control system after havingresearched an authorized bluetooth signal, and automatically opens the gate when the distance reaches a threshold value. The intelligent access control system supports mobile phone unlocking. Users don't need to equip special-purpose terminal equipment, and there is no need to install any APP on a mobile phone of a user for unlocking. In addition, user operation is simple, and the user only needsto open the bluetooth of a mobile phone and arrange the bluetooth to be visible. The opening of a door is also automatically controlled by the system, and users don't need to do any operation. The system of the invention is convenient and efficient.
Owner:南京右转信息科技有限公司
Terminal device automatic anti-theft alarm method and terminal device
ActiveCN103634454AGuaranteed triggerGuaranteed timelinessNear-field transmissionSubstation equipmentShortest distanceTerminal equipment
The invention relates to the file of communications, and discloses a terminal device automatic anti-theft alarm method and a terminal device. According to the invention, the terminal device will try to establish communication connection with an external tag by periodically utilizing the self-provided NFC function when being in the anti-theft state. If the establishment is failed continuously for many times, then a preset alarm ringtone will be played automatically. The communication connection established by utilizing the NFC function has a short distance limit, so once the distance between the terminal device and the external tag exceeds the distance limit, the establishment of the communication connection will be failed, and after the establishment of the communication connection is failed continuously for many times, the alarm function will be triggered automatically so as to achieved the mobile phone anti-theft purpose.
Owner:SHANGHAI SIMCOM LTD
System and method for instant voice-activated communications using advanced telephones and data networks
InactiveUS20090310762A1Short connection timeAudible coordination of tasks is made extremely efficientAutomatic exchangesSpeech recognitionSystem configurationBiological activation
Instant communications with voice activated connections by both initiating and responding individuals are disclosed using advanced telephones and data networks. A users' speech is captured through an advanced telephone and is automatically recognized to initiate communications with another individual or a group over a data network. The system forwards a predefined communication alert to the designated individual or group. Recipients of the communications alert can indicate acceptance of the communication attempt by speech which is also automatically recognized. Two way communications are instantly established upon acceptance. System configuration, group definitions, user's access permissions, voice activation phrases, and communication alerts are managed through software in a user-accessible network-based service.
Owner:VELIUS GEORGE ALFRED
Fast connection method of carbon/carbon composite material
InactiveCN103232257AThe interface is tightly combinedEnables high temperature applicationsCarbon compositesMetal sheet
The invention discloses a fast connection method of a carbon / carbon composite material. The method includes the steps of: (1) preparation of an X-Si (X=Ni, Co, Ti or Cr) alloy paste; (2) pretreatment of the carbon / carbon composite material; (3) pretreatment of a middle layer metal sheet (including Mo or Ti sheet); (4) coating of a composite material connection surface with the X-Si alloy paste; and (5) assembling and quick connection: arranging two X-Si alloy coatings and one middle layer metal sheet in the middle of the connection surface of two carbon / carbon composite components so as to form an X-Si / middle layer metal sheet / X-Si sandwich structure, with the Si atomic percentage content of the X-Si alloy being 40-80%, under the conditions of 10-40MPa pressure assembling, vacuum protection and a heating rate of 100-300DEG C / min, conducting heating to 1200-1600DEG C, and performing heat preservation for 1-10min. The method disclosed in the invention can realize liquid phase connection of carbon / carbon composite materials. The process is simple, and the prepared connecting piece has a reliable structure and can be used in load bearing and high temperature application occasions.
Owner:XI AN JIAOTONG UNIV
Method for quickly connecting a steam generator
ActiveUS20140000259A1Reduce complexityImprove cost effectivenessSteam engine plantsCombined combustion mitigationPower stationEngineering
A method is provided for connecting at least one further steam generator to a first steam generator in a power plant. The power plant includes at least two steam generators and a steam turbine, in which a fluid used to drive the steam turbine is conveyed in a fluid circuit having a plurality of steam systems. The steam systems are assigned individual steam generators and are able to be separated from one another by shut-off valves. The fluid of at least the first steam generator is connected to the steam turbine. The method involves opening the shut-off valve of at least one first steam system of the at least one further steam generator before the steam of the at least one further steam generator has reached approximately the same steam parameters as the steam of the first steam generator, so that steam can flow into the further steam generator.
Owner:SIEMENS ENERGY GLOBAL GMBH & CO KG
Anti-freezing type wireless network device for mobile communication base stations
ActiveCN110209219AImprove battery lifeThe operation process is simpleTemperatue controlSelection arrangementsEngineeringElectrical and Electronics engineering
The invention discloses an anti-freezing type wireless network device for mobile communication base stations. The device comprises an upper cover, a built-in box, a fixed box and a base, wherein a solar panel is arranged above the upper cover; an upper heat insulating layer is arranged inside the upper cover; the fixed box is arranged below the upper cover; an operating panel is arranged at one side of the fixed box; a locking piece is arranged above the operating panel; lateral heat insulating layers are arranged inside both sides of the fixed box; a lateral heat insulating layer is also arranged at the lower part inside the fixed box; the built-in box is arranged inside the fixed box; and the base is arranged at the lower part inside the built-in box. The device has the beneficial effects that: 1, the device is equipped with the solar panel and a backup power source, so that the device can be in a heating state for a long time and the endurance ability is increased; and 2, the deviceis equipped with a signal enhancing antenna, so that the problems that the device signal is poor and the use of staff is affected when the wireless network device is in an enclosed space are prevented.
Owner:陕西专壹知识产权运营有限公司
Portable device for communication among multiple parties
ActiveCN1713757AShort connection timeEliminate the hassle of password authenticationSpecial service for subscribersRadio/inductive link selection arrangementsTelecommunications linkCommunication link
The invention consists of: multi communication link modules used to implement communication between multi communication terminals, each communication link module includes an RF module and a base band module; an audio input and output module connecting to multi communication link module and base band module; audio link unit used to build multi audio link between multi communication link and base band module. The RF module above receives external audio signal and retransmits it to all base band module in communication link module through audio link unit. The audio signal is sent out through relevant RF module.
Owner:LENOVO (BEIJING) LTD
LTP asynchronous accelerated retransmission strategy-based deep space file transfer method
ActiveCN106100797ARecover as soon as possibleImprove transmission efficiencyError prevention/detection by using return channelChannel coding adaptationSingle sessionData segment
The present invention belongs to the data transmission field and relates to an LTP asynchronous accelerated retransmission strategy-based deep space file transfer method. According to the LTP asynchronous accelerated retransmission strategy-based deep space file transfer method of the invention, based on an LTP single-session retransmission mode, an ahead-of-time acceleration retransmission strategy initiatively triggered by a receiving end is adopted, namely, in the initial transmission stage of red data, the receiving end generates a receiving report according to an actual receiving condition, a retransmission process is started in advance. Based on asynchronously accelerated retransmission, lost data can be recovered as soon as possible, so that file transmission efficiency can be improved; the dependence of retransmission startup on EORP data segments can be decreased, and so that file transfer time can be shortened. This strategy is very suitable for short-connection time, long-connection and high-bit error rate conditions.
Owner:ZHAOQING UNIV
Method for realizing seamless roaming between routers
ActiveCN111586676ASolve the situation of network lagShort connection timeTransmissionNetwork data managementData packTelecommunications
The invention discloses a method for realizing seamless roaming between routers. A plurality of sub routers are respectively in wireless bridge connection with a main router; then, each sub-router respectively receives the IP address sent by the main router, each sub-router respectively closes the DHCP server at the same time, and the main router opens the DHCP server to ensure that the network segments of the IP addresses allocated by the main router are the same, so the roaming devices can communicate with each other; further, the main router detects a PING time value of each sub-router andreply PING time data of the main router; the shortest PING connection time of the roaming equipment in which router is located is obtained; meanwhile, whether the router is in wireless network connection with the roaming equipment or not is judged: if not, responding to a roaming equipment data information simulation instruction sent by the main router, and establishing virtual data information ofthe roaming equipment, so the router normally receives and sends a WIFI data packet of the roaming equipment, thereby finishing a seamless roaming process.
Owner:HUIZHOU GAOSHENGDA TECH CO LTD
Assembling corridor for vacuum pipe traffic
InactiveCN100484812CReduce volumeImprove operational efficiencyRailway tunnelsRailway componentsEngineeringPneumatic valve
The invention discloses a plugging corridor used for the vacuum pipe traffic, which comprises: a tube-shape fixed corridor (6) is equipped in station department with one end embedded in a vacuum pipe (1), and another end is connected with the station platform, junction of the fixed corridor (6) and vacuum pipe (1) is sealed; a telescopic corridor (9) is sealing nested in anterior inner wall of the fixed corridor (6); One end of the flexible mechanism (10) is linked with the telescopic corridor (9), and another end is connected with the fixed corridor (6), and the front end of telescopic corridor (9) fits the peripheral shape around the door (3) of the train carriage (2) and is equipped with sealing strip (11); The middle rear part of the fixed corridor (6)is equipped with a sealing door (7), one pneumatic valve (8)is provided on the sealing door (7) or the fixed corridor (6) wall before the sealing door (7). Within a short period of time, it can accomplish getting on or off of passengers in vacuum pipe, and improves the running efficiency of train with little power consumption and simple structure.
Owner:SOUTHWEST JIAOTONG UNIV
Portable device for communication among multiple parties
ActiveCN100334909CShort connection timeEliminate the hassle of password authenticationSpecial service for subscribersSubstation equipmentTelecommunications linkCommunication link
The invention consists of: multi communication link modules used to implement communication between multi communication terminals, each communication link module includes an RF module and a base band module; an audio input and output module connecting to multi communication link module and base band module; audio link unit used to build multi audio link between multi communication link and base band module. The RF module above receives external audio signal and retransmits it to all base band module in communication link module through audio link unit. The audio signal is sent out through relevant RF module.
Owner:LENOVO (BEIJING) LTD
Biaxial tensile mechanical property testing device and method for multi-configuration test piece
PendingCN113405910AReduce in quantityImprove general performanceMaterial strength using tensile/compressive forcesStructural engineeringMachine
The invention provides a biaxial tensile mechanical property testing device and method for a multi-configuration test piece, relates to the technical field of material mechanical property tests under complex stress loading, and particularly relates to the biaxial tensile mechanical property testing device and method for the multi-configuration test piece. The device comprises an upper clamp and a lower clamp which are connected with a testing machine and correspondingly arranged vertically. The upper clamp comprises an upper clamp body of an orthogonal cross structure, four extension arms of the upper clamp body are upper supporting arms, the center lines of the four upper supporting arms are located in the same plane, an upper clamping part used for being connected with the testing machine is fixedly arranged at the center of the upper clamp body, and the upper clamping part extends out in the direction away from the lower clamp. The biaxial stretching mechanical property testing device is high in universality, the number of testing devices needed for adapting to biaxial stretching mechanical property tests of test pieces of different configurations is reduced, cost is saved, and the requirement for the biaxial stretching mechanical property tests of the test pieces of different configurations and sizes can be met by adjusting the included angle formed by the supporting rod and the base.
Owner:中国人民解放军火箭军工程大学
Agent system of telephone conference
InactiveCN1713677AShort connection timeLow costSpecial service for subscribersMain processing unitTelephone network
The invention consists of multi external communication terminal, fixed telephone network and telephone conference server containing main processor. The telephone conference server also contains a exchange with multi-party call function. The exchange is set between fixed telephone network and main processor, and connects to main processor through CTI interface and to fixed telephone network through trunk line. The main processor make automatic dialing through request signal of telephone conference sent by external communication terminal
Owner:乐知新创(北京)咨询服务有限公司
Quick secondary-dialing method for telephone
InactiveCN102377854AShort connection timeShorten the timeSubscriber signalling identity devicesTelephone set constructionsKey pressingUser input
The invention relates to a quick secondary-dialing method for a telephone. A programmable telephone in which a memory and a microprocessor chip are built is chosen; a quick secondary-dialing program is put into the quick memory of the telephone; a telephone background is set to access a pre-dialing number; when the telephone is picked up and the handfree knob of the telephone is pressed, the microprocessor chip of the telephone switches on a communication module of the telephone; a telephone foreground waits and receives user keys and caches key a code; and after the background gets through the secondary-dialing platform, the microprocessor chip of the telephone immediately automatically sends the cached key code to the secondary-dialing platform according to a user input sequence in a dual-tone multi-frequency (DTMF) signaling mode on the background. According to the setting of the telephone with the quick secondary-dialing method, time for dialing and accessing into the platform is saved, and telephone cut-in time is greatly shortened.
Owner:DONGGUAN YOUXUN COMM
Strip connecting machine
InactiveCN106624829AQuick connectionSimple structure setupWork clamping meansOther manufacturing equipments/toolsDrive wheelEngineering
The invention discloses a strip connecting machine. The strip connecting machine is characterized in that the strip connecting machine comprises a machine base, traction driving wheel assemblies, driving wheels, a pressing and cutting-off assembly and a pressing and welding assembly; the traction driving wheel assemblies and the driving wheels are arranged at the two ends of the machine base, and the pressing and cutting-off assembly and the pressing and welding assembly are arranged on the portion, between the traction driving wheel assemblies and the driving wheels, of the machine base; and the pressing and cutting-off assembly comprises two or more strip clamping mechanisms and flat-cutting mechanisms, and the flat-cutting mechanisms are arranged between the strip clamping mechanisms. The strip connecting machine is simple in structure, easy and convenient to operate, the aluminum strip connecting time is short, and the working efficiency is high.
Owner:NANNING ANHE MECHANICAL EQUIP CO LTD
Educational administration information view method based on NFC
InactiveCN103413260AEasy to operateShort connection timeData processing applicationsTransmission rateInformation management
Owner:苏州跨界软件科技有限公司
A beneficiation method for dry separation and recovery of iron-bearing useful rocks
ActiveCN110026292BEfficient recyclingDoes not affect operationMagnetic separationAdhesive beltMining engineering
The invention discloses a beneficiation method for dry separation and recovery of iron-containing useful rock. An adopted dry separation recovery system is composed of an iron-containing useful rock dry separation recovery system material receiving part and an iron-containing useful rock dry separation and recycling dry separation part in a combined mode; a movable trolley (15) is arranged in thethrough-connection position of an original mining plant main adhesive tape (4) and an original soil-discharging field main adhesive tape (13); a vertically arranged rock-discharging chute (3) is arranged at the back end of the movable trolley (15); a vertically arranged dry separation chute (7) is arranged at the front end of the movable trolley (15); the iron-containing useful rock dry separationand recycling dry separation part comprises a material collecting type three-way material division funnel and two dry magnetic separators; a turn plate is arranged in the crotch of the material collecting type three-way material division funnel, and an electric hydraulic push rod pushes the turn plate; and the position of the movable trolley (15) is adjusted through a double-winding drum winch (1), so that different-grade iron-containing surrounding rocks can be treated in different ways. The method can adapt to different ore feeding conditions and can automatically switch the processing modes according to the high and low iron grade in the iron-containing surrounding rock feed.
Owner:包钢集团矿山研究院(有限责任公司) +1
A method of instantaneous liquid phase diffusion bonding for reliable joints of rafm steel
ActiveCN112388142BReduce distortionRelieve pressureWelding/soldering/cutting articlesNon-electric welding apparatusMechanical engineeringMechanical property
The invention discloses a method for obtaining instantaneous liquid-phase diffusion connection of reliable joints of RAFM steel, using iron-based alloy foil Fe-Si-B to perform instantaneous liquid-phase diffusion connection of RAFM steel samples, with a temperature rise of 5-20°C / min Raise the temperature to 800‑900°C, keep it warm for 20‑40min, then raise the temperature to 1185‑1215°C at a rate of 5‑20°C / min, apply a pressure of 0.2‑2MPa in the direction perpendicular to the surface to be connected, and keep it warm for 1‑ 60min, and finally lowered to room temperature 20-25°C at a cooling rate of 5-30°C / min. The invention utilizes the middle layer of the alloy foil and designs a thermal cycle process for instantaneous liquid phase diffusion connection, thereby obtaining a reliable joint of RAFM steel with uniform structure and good mechanical properties.
Owner:TIANJIN UNIV
Method for obtaining transient liquid phase diffusion bonding of RAFM reliable joint
ActiveCN112388142AReduce distortionRelieve pressureWelding/soldering/cutting articlesNon-electric welding apparatusFluid phaseMaterials science
The invention discloses a method for obtaining transient liquid phase diffusion bonding of a RAFM reliable joint. The method comprises the steps that transient liquid phase diffusion bonding is carried out on a RAFM sample using an iron-based alloy foil Fe-Si-B, the temperature is increased to 800-900 DEG C at the heating rate of 5-20 DEG C / min, the temperature is kept 20-40 minutes, then the temperature is increased to 1185-1215 DEG C at the heating rate of 5-20 DEG C / min, 0.2-2 MPa pressure is applied in the direction perpendicular to a to-be-connected face, the temperature is kept 1-60 minutes, and finally, the temperature is reduced to the room temperature of 20-25 DEG C at the cooling rate of 5-30 DEG C / min. According to the method for obtaining transient liquid phase diffusion bonding of the RAFM reliable joint, an alloy foil intermediate layer is utilized and a thermal cycle process of transient liquid phase diffusion bonding is designed, so that the RAFM reliable joint with uniform structure and good mechanical properties is obtained.
Owner:TIANJIN UNIV
A multi-degree-of-freedom quick connection device
ActiveCN110005697BMeet the rigid fixed connectionFirmly connectedPivotal connectionsControl theoryScrew thread
Owner:YANSHAN UNIV
Mobile phone scrambler and its privacy communication method
InactiveCN100576856CShort connection timeCall reliableEavesdropping prevention circuitsSecret communicationComputer hardwareSupply management
This invention relates to a mobile phone crypto suitable for realizing security voice and data communication of mobile communication network and PSTN including a handheld terminal set integrating a voice IO unit, a voice code and decode unit, a voice post process unit, a primary control unit, a supply management unit, a man-machine interface unit, a connection-expansion unit, a ciphere / de-ciphere unit and a security management unit, a special connection cable and special interface fittings. When a security communication is needed, the crypto of said mobile phone can cut in the mobile communication net or the PSTN quickly in the way of wire or wireless to ensure the security voice session or data communication by end to end and ciphering every time under the internal control of the crypto.
Owner:深圳市颂雅科技有限公司
Intelligent installation device for live-line work special-shaped parallel groove clamp
PendingCN114221145AShort connection timeFixed fastClamped/spring connectionsMultiple conductors connectorStructural engineeringElectric motor
The invention relates to a live-line work special-shaped parallel groove clamp intelligent installation device which comprises a clamp body, a slave line clamping mechanism, a main line clamping mechanism and a bolt fastening mechanism, a parallel groove clamp is placed in the clamp body, then a main line and a slave line are placed in the parallel groove clamp, and then installation work of the parallel groove clamp is completed. A slave wire is fixed in the drawing pipe, a parallel groove clamp is placed in the clamp body along the placing frame, the parallel groove clamp is clamped by the push plate, when the parallel groove clamp is connected with a main wire, the grip is held tightly to slowly move the clamp body upwards from the lower side of the main wire, the main wire enters the wire clamping plate through the guide frame to be clamped and fixed, the wire clamping block is moved rightwards, and the slave wire is driven by the drawing pipe to enter the sliding barrel. At the moment, the main wire and the auxiliary wire both reach the installation position, a motor is started through a controller, the motor drives a sleeve and a clamping head to rotate, bolts on the outer side of the parallel groove clamp are fastened, and installation is completed; the device has the advantages of being convenient to carry and use, high in stability and high in safety coefficient.
Owner:ZHUMADIAN POWER SUPPLY ELECTRIC POWER OFHENAN
Agent system of telephone conference
InactiveCN100464556CShort connection timeLow costSpecial service for subscribersMain processing unitTelephone network
The invention consists of multi external communication terminal, fixed telephone network and telephone conference server containing main processor. The telephone conference server also contains a exchange with multi-party call function. The exchange is set between fixed telephone network and main processor, and connects to main processor through CTI interface and to fixed telephone network through trunk line. The main processor make automatic dialing through request signal of telephone conference sent by external communication terminal
Owner:乐知新创(北京)咨询服务有限公司
Screwing type steel wire throat hoop
InactiveCN101235933AImprove binding forceEnhanced binding effectHose connectionsEngineeringStraight segment
The invention relates to a screw-type steel wire hose clamp used in sealing fixation of flexible pipes and rigid pipes in pipeline connection. The screw-type steel wire hose clamp comprises a screw block and fixed connection steel wires, wherein at least one pair of through holes is arranged on the screw block. The middle portion of the steel wire is a circular arc segment, two folded ends are a neck straight segment, the fixed connection steel wires form the shape of a flask, the neck straight segment of the fixed connection steel wires penetrate the through holes of the screw block, the tail end of the neck straight segment is a spherical head, and the size of the spherical head is larger than that of the through holes. The screw-type steel wire hose clamp has the advantages of simple structure, high strength, speedy fixed connection and convenient utilization.
Owner:武希盛
Novel external thread loose joint device
InactiveCN106439281AGuaranteed work performanceFirmly connectedScrew threaded jointsPipe fittingEngineering
A novel external wire loose joint device comprises a connecting head and a connecting cavity. The connecting head is connected with the connecting cavity. A connecting pipe is connected with the rear portion of the connecting cavity. A sleeving component is arranged outside the connecting cavity. A cushion layer is arranged between the sleeving component and the connecting cavity. A fixing screen is arranged in the connecting cavity. A protective layer is arranged outside the fixing screen and is a copper protective layer. A protective layer is arranged in the loose joint device and capable of protecting the inner side of the loose joint device from being corroded by conveyed matter, and the actual working effect of the loose joint device can be guaranteed; and the connecting pipe is arranged in the loose joint device, connection of the loose joint device and a hose can be facilitated, the connecting time is short, the connecting effect is good, connection of the loose joint device and other pipe fittings is improved, and the connecting efficiency is improved.
Owner:YANGZHOU HUAYE METAL PROD CO LTD
Fast connection method of carbon/carbon composite material
InactiveCN103232257BThe interface is tightly combinedEnables high temperature applicationsCarbon compositesMetal sheet
The invention discloses a fast connection method of a carbon / carbon composite material. The method includes the steps of: (1) preparation of an X-Si (X=Ni, Co, Ti or Cr) alloy paste; (2) pretreatment of the carbon / carbon composite material; (3) pretreatment of a middle layer metal sheet (including Mo or Ti sheet); (4) coating of a composite material connection surface with the X-Si alloy paste; and (5) assembling and quick connection: arranging two X-Si alloy coatings and one middle layer metal sheet in the middle of the connection surface of two carbon / carbon composite components so as to form an X-Si / middle layer metal sheet / X-Si sandwich structure, with the Si atomic percentage content of the X-Si alloy being 40-80%, under the conditions of 10-40MPa pressure assembling, vacuum protection and a heating rate of 100-300DEG C / min, conducting heating to 1200-1600DEG C, and performing heat preservation for 1-10min. The method disclosed in the invention can realize liquid phase connection of carbon / carbon composite materials. The process is simple, and the prepared connecting piece has a reliable structure and can be used in load bearing and high temperature application occasions.
Owner:XI AN JIAOTONG UNIV
A Dry Separation Recovery System for Iron-Containing Useful Rock
ActiveCN110026409BEfficient recyclingDoes not affect operationSolid waste disposalMagnetic separationAdhesive beltMining engineering
The invention discloses a dry separation recovery system for useful rock containing iron, which is composed of a material receiving part of the dry separation recovery system for useful rock containing iron and a dry separation part for dry separation recovery of useful rock containing iron: the main tape (4 ) and the former main adhesive tape (13) of the dump site are provided with a mobile trolley (15); a rock discharge chute (3) is vertically arranged at the rear end of the mobile trolley (15), and a vertically arranged front end of the mobile trolley (15) The dry separation chute (7); the iron-containing useful rock dry separation recovery dry separation part contains the aggregate type three-way distribution funnel and 2 dry magnetic separators; The flap is pushed by an electro-hydraulic push rod; the position of the mobile trolley (15) is adjusted by the double-drum winch (1), and different grades of iron-containing surrounding rocks are treated in different ways. The invention can adapt to different ore supply conditions, can automatically switch processing according to the iron grade in the iron-containing surrounding rock feed material, and can adapt to various ore supply conditions and changes in ore supply volume.
Owner:包钢集团矿山研究院(有限责任公司) +1
Universal quick connecting and disconnecting connector device for large pipeline
PendingCN114294496AQuick releaseEnable connectivityAdjustable jointsEngineeringStructural engineering
According to the universal quick connecting and disconnecting connector device for the large pipeline, quick connecting and disconnecting of the pipeline connectors are achieved through folding and unfolding of the connecting rod mechanism, and universal adjustability of the pipeline connectors before connection is achieved through multi-direction hinge connection of the connecting rods and multi-direction hinge connection between the connecting rods; meanwhile, due to the self-positioning and self-sealing structure of the connector, the convenience of pipeline connection is greatly improved; compared with a joint device and a connection mode of a traditional large-scale pipeline, the joint device can provide enough locking force to ensure the connection reliability, and can also realize quick connection and disassembly of the pipeline; and pre-connection and pre-disassembly are quickly realized by virtue of universal adjustability of the connecting rod group and the joint, so that the difficulty in connection and disassembly of the large pipeline is greatly reduced, the connection and disassembly time is shortened, and the use requirements of the large pipeline which needs to be frequently connected and disassembled can be well met.
Owner:徐德富
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