123results about How to "Achieve controllability" patented technology

The invention discloses a spring wheat planting method by trickle irrigation spring wheat, which mainly contains the steps of flattening soil, sowing, laying pipes and managing in a prophase, a metaphase and an anaphase in the yield. Compared with a conventional technology for planting general spring wheat, the method for planting the wheat can save water, land, fertilizer, power, mechanical force and seeds, achieve good effect of favorable irrigation and fertilization and even growth of wheat grass.

The invention relates to the field of thermal performance test and cooling efficiency test of thermal protection systems of aircraft, in particular to a combined loading test device. The combined loading test device comprises a test platform, a gas heating component which is used for heating a test piece, an air flow cooling component which is used for cooling the test piece, a temperature monitoring device which is used for acquiring the temperature information of the test piece in real time, and a control device which is used for controlling the gas heating component and the air flow cooling component according to the temperature information. According to the combined loading test device, the test piece is heated by the gas heating component, so that the disadvantages in the conventional heating mode are overcome; the shear effect caused by high-temperature air flow convection heating environment and air flow scouring, and the oxidation corrosion effect of a combustion product on the surface coating of a component when the test piece is used are truly simulated, and the working environment of the test piece can be truly simulated.

The invention discloses a steel rail switch twisting device. A first unit body and a second unit body are fixedly connected by a middle connecting plate into a whole; the first unit body and the second unit body respectively comprise two separated substrates, installing blocks are symmetrically mounted between the two substrates of the first unit body, a fixture sliding channel and a plug pin hole are formed in each installing block, a fixture is mounted in the fixture sliding channel, one ends of the left fixture and the right fixture are respectively fixedly connected with a piston rod of a clamping oil cylinder; a lock mechanism is mounted on the bottom of each installing block; the second unit body has the same structure with that of the first unit body, an inner flange and an outer flange are mounted on the substrate of the second unit body, the outer flange is fixedly connected with the outer wall of the substrate, the outer flange is supported against the outer circular face of the inner flange, the inner flange is fixedly connected with the outer walls of the installing blocks; the installing blocks are fixedly connected with one end of a twisting arm, the other end of the twisting arm is hinged with a twisting oil cylinder, a sensor is mounted on the twisting oil cylinder, and the other end of the twisting oil cylinder is hinged between the two substrates of the second unit body. The steel rail switch twisting device realizes controllability of the processing angle of a steel rail.

The invention discloses a polymer / graphene foamed material with electromagnetic shielding performance, and a preparation method and an application thereof. The method is characterized in that a thermoplastic polymer / graphene micro-foamed film is produced mainly by using a solution blending and phase separation technology, and the thermoplastic polymer / graphene micro-foamed film and a wave transmitting material are bonded by glue to form the integral material with a sandwich structure. The polymer / graphene foamed material has good application prospect in the electromagnetic shielding field.

The invention discloses microencapsulated crude oil transportation drag reducer slurry. The surfaces of alpha-olefin drag reducing polymer particles which are pulverized at low temperature are coated with hydrophobic nano silicon dioxide films with mass of 0.5-2.0 percent of that of the particles to form the drag reducing polymer into slow-release microcapsules; the slow-release microcapsules are mixed with assistants such as solvent water, a surfactant, a thickener, an anti-freeze agent and a bacteriostatic agent to prepare stable drag reducer slurry. The microencapsulated drag reducer fundamentally eliminates the spontaneous coagulation of the drag reducing polymer particles, so that the storage stability of the drag reducer slurry is obviously improved; the content of the drag reducing polymer is high, the controllable release and a sustaining drag reducing function of the drag reducer are realized, the shear resistance and the average drag reduction rate are improved, and the drag reducer slurry is particularly suitable for drag reduction of long-distance crude oil transportation pipelines.

The invention discloses a preparation method of a composite microbial starter culture and application thereof. The method is characterized by comprising the following steps: separating out lactobacillus plantarum, lactobacillus sake, lactococcus lactis and leuconostoc mesenteroides from a fermentation liquor of natural fermentation sauerkraut, producing strains by taking dabaryomyces hansenii as a leavening agent; independently producing the leavening agent, so that the viable count is greater than or equal to 10<9> per ml, and then respectively preparing freeze drying powder from different strains; evenly mixing according to the mass ratio of the lactobacillus plantarum to the lactobacillus sake to the lactococcus lactis to the leuconostoc mesenteroides to the dabaryomyces hansenii being (2-3):(2-3):(1-2):(1-2):(1-2), so as to prepare the composite microbial starter culture. The composite microbial starter culture is applied to a fermented vegetable product, so that growth of infectious microbes and harmful bacteria can be avoided, the quality of the fermented vegetable product can be improved, meanwhile, compared with a single strain starter culture, more flavor substances can be generated by adopting the composite microbial starter culture of the saccharomycetes and the lactic acid bacteria, the flavor is closer to the traditional natural fermented vegetable products, and production controllability and modern production are achieved.

The invention discloses a preparation method for a Szechuan pickled tuber vegetable fermentation composite microbial agent. The microbial agent comprises microbe powder 1, microbe powder 2 and microbe powder 3; the microbe powder 1 is prepared by inoculating 10L of Bacillus coagulans CICC 10144 strain culture solution in a logarithmic metaphase into a 1,000L airlift fermentor for high-density culture; the microbe powder 2 is prepared by inoculating 10L of Leuconostoc mesenteroides CGMCC 1.20 strain culture solution in a logarithmic metaphase into a 1,000L fermentor for culture; the microbe powder 3 is prepared by inoculating 5L of Lactobacillus plantarum CICC 6067 culture solution, 5L of Lactobacillus brevis CICC 6042 culture solution and 5L of Pediococcus acidilactici CGMCC 1.4 culture solution in a logarithmic metaphase into a 1,000L fermentor for co-culture; and the three kinds of microbe powder are mixed in a ratio of 2:5:5 and the mixture is subjected to vacuum packaging to form the Szechuan pickled tuber vegetable fermentation composite microbial agent. The problem that a microbial agent for producing Szechuan pickled vegetables at present is lacked is solved, and productioncontrollability and standard operation for industrially producing the Szechuan pickled vegetables are realized.

The invention discloses a convenient rapid supporting loading and unloading mechanism and a supporting loading and unloading method. The supporting loading and unloading mechanism comprises a hydraulic oil cylinder, an oil cylinder piston rod and a steel supporting sleeve, wherein the hydraulic oil cylinder is provided with an oil inlet pipe orifice and an oil return pipe orifice, the hydraulic oil cylinder with a built-in distance sensor and a pressure sensor is fixed inside the steel supporting sleeve, and the oil inlet pipe orifice and the oil return pipe orifice of the hydraulic oil cylinder are installed at the outer side of the steel supporting sleeve. A movable control plate is connected with an industrial personal computer in a cabled way or a wireless way, when in supporting installation; and workers under the foundation pit can control the supporting loading and unloading mechanism to perform different actions and to display the supporting pressure and relevant information through the movable control plate. Therefore, a complete supporting loading and unloading mechanism system can be formed. The supporting loading and unloading mechanism can conveniently and rapidly realize the loading and the unloading construction of the steel support, has the advantages of high construction efficiency, time and labor conservation, safety and reliability, and can be conveniently installed on the present steel support.

The invention discloses a pH responsive nanometer carrier as well as a preparation method and application thereof, and belongs to the field of medicine delivery. Biomacromolecule is loaded to a pore canal of pH responsive mesoporous silica nanoparticles, a hole plugging agent is used for plugging the pore canal of the mesoporous silica nanoparticles, and the pH responsive mesoporous silica nanoparticles are mesoporous silica nanoparticle surface grafted acidic sensitivity molecules, wherein the diameter of the nanoparticle pore canal is 5-50nm. Under the condition that the pH value is smallerthan or equal to threshold, an acidic sensitivity chemical bond is ruptured, and charge on the surfaces of the nanoparticles is turned into positive charge from negative charge; and under the action of electrostatic repulsion, the hole plugging agent with the positive charge is separated from the surfaces of the mesoporous silica nanoparticles, the pore canal is exposed, and the biomacromolecule is quickly released. The pH responsive nanometer carrier can effectively solve the problems that the biomacromolecule leaks before arriving at target cells or cannot be controllably released under thespecific condition in cells, and controlled release under the specific pH condition of the loaded biomacromolecule is realized.

The invention relates to an ion beam emission source capable of outputting single iron energy so as to solve the problems of the prior art that the extracted ion does not have single energy, the quality of the film is greatly influenced and the repeatability of ion beam assistance is difficult to realize. The technical proposal is as follows: the emission source comprises a gas discharge chamber, a focusing magnetic field generating unit, an ion energy selector and a beam expanding magnetic field generating unit; the gas discharge chamber comprises an anode, a cathode and an extracting grid plate; the ion energy selector comprises an upper magnetic polar plate and a lower magnetic polar plate which are oppositely arranged, and a selecting cylinder which is formed by a first electrode plate and a second electrode plate which are oppositely arranged; polar plate insulating members are arranged among the upper magnetic polar plate, the first electrode plate, the lower magnetic polar plate and the second electrode plate; and the centers of an inlet cover plate and an outlet cover plate at two ends of the selecting cylinder are respectively provided with an energy band limit through hole. Compared with the prior art, the emission source has the advantages that: 1. ion with single energy can be generated and extracted; 2. the energy of the ion is adjustable; and 3. the manufacture process is simple.

The invention relates to a dynamically-monitored high-frequency ultrasound atomized nanoparticle preparation system. The system mainly comprises a high-frequency ultrasound nano-atomizing device, a multipoint dynamic nanoparticle particle size and particle shape real-time monitoring device, an efficient laminar-flow electrostatic collecting device, an inert gas circulating and organic solvent recovering device and a software automated-controlling and data integrated-processing module. The equipment can achieve the nano preparation of trace samples, and the yield is extremely high; and meanwhile, the real-time dynamic monitoring device is introduced, and the influence on the quality of nanoparticles caused by each parameter can be monitored timely through a data integration module or software, so that the whole preparation process can be controllable, and the rapid optimization of parameters is facilitated.

The invention discloses a threat information exchange sharing method based on a block chain, and the method comprises the steps: 1),a threat information block chain system is set with the system comprising comprises a threat information block chain, a synchronization node, and a plurality of maintenance nodes; a user registers as a threat information block chain user, and obtains a corresponding public key and a corresponding private key; 2) a threat information producer sets intelligent contract content on the system, signs the intelligent contract content with a private key and then issues the intelligent contract content to a threat information block chain; 3) the intelligent contract content signed issued by the information consumer synchronously is threatened, a private key used to sign and the content is broadcast through the system; 4) a maintenance node analyzes the content in the smart contract and packages the content into a new threat information block A; 5) a block A is broadcasted to the system, the maintenance node adds the block A to the threat information block chain after consensus of the block A is achieved, and 6) the maintenance node achieves consensus after confirming the effectiveness of the smart contract, creates a new block B and broadcasts a new block B through the system.

The invention, relating to the field of cell manufacturing and energy storage, discloses a surface modification method for raising the activity of an electrode material of a vanadium cell, comprising the following steps: firstly cleaning the electrode material of the vanadium cell to remove surface impurities, then carrying out modification treatment of the electrode material by using plasma, reacting the gas which generates plasma with the electrode surface under ionization state to generate polar functional groups; and finally carrying out ultrasonic cleaning on the modified electrode material for 5-30 min and drying at 60-120 DEG C. According to the invention, by using the method of the invention to carry out surface modification on the electrode material of the vanadium cell, the hydrophilcity of the electrode surface is enhanced, partial polar functional groups has good catalytic influence on electrode reaction, and the energy storage efficiency of the cell is expected to increase. The method can be used for processing material surfaces with various morphologies and can keep mechanical properties and the like of material matrixes, the experiment condition are easy to control and the method has no pollution to environment. The method is efficient and environmentally friendly.

The invention discloses a VCM (Voice Coil Motor) testing mechanism, a testing system comprising the VCM testing mechanism and a testing method. The VCM testing mechanism comprises a testing fixture for mounting a motor, a lens capable of self positioning, and a lens taking and placing assembly of the motor, wherein the lens taking and placing assembly is used for mounting the lens into or taking the lens out of the testing fixture and at least comprises a pressing plate which can be used for selectively clamping or loosening the lens, and a positioning assembly for resetting the lens. By arranging the positioning assembly, the position consistency of the lens after the lens is mounted into or taken out each time can be guaranteed; compared with the traditional technology, the scheme provided by the invention has the advantages that the full automation is realized, and the batch testing work becomes possible. The testing system comprises the VCM testing mechanism and a material taking mechanism for mounting the lens into or taking the motor out of the testing fixture; the material taking mechanism comprises a motor nozzle; a positioning structure for positioning the motor is arranged on the motor nozzle. The positioning structure is arranged for accurately positioning the position of the motor.

The invention discloses a multi-parameter adjustable operating mechanism based on a dual-coil structure, belonging to the field of a switch apparatus, to solve the problems that there is no test technological reserve for a high-voltage direct current relay at present, and design and verification of different models of relay products are short of analysis theory and evaluation data. The multi-parameter adjustable operating mechanism comprises an electromagnetic system, a contact system, a magnetic quenching system and a base; the magnetic quenching system is arranged at the two sides of the contact system; both the electromagnetic system and the magnetic quenching system are fixed on the base through bolts; a contact clamping mechanism is arranged on the contact system for clamping a movable contact and a static contact; and the electromagnetic system drives the contact system to realize on / off operations of the movable contact and the static contact as a power source. The multi-parameter adjustable operating mechanism is used for an arcing test, provides a test platform for arc characteristic analysis and arc mechanism exploration, and provides a verification platform for design of a relay product acting mechanism and an arc extinguishing system.

The invention discloses a ferroferric oxide @ silicon dioxide magnetic single-hole hollow microsphere and a preparation method thereof. The ferroferric oxide @ silicon dioxide magnetic single-hole hollow microsphere is characterized in that a hollow microsphere shell is a mixture of silicon dioxide and ferroferric oxide nano particles; the ferroferric oxide nano particles are dispersed in silicon dioxide substrate randomly; the shell is provided with a large hole; an empty chamber which is in an exocentric structure is formed inside the microsphere; the large hole which is formed in the shell is communicated with the microsphere empty chamber; the average grain diameter of the above hollow microsphere is between 200 and 2Mum; the size of the large hole which is formed in the shell is between 16 to 500 nm; a distribution range of the size of the empty chamber is between 50 and 1.5Mum. The preparation method of the ferroferric oxide @ silicon dioxide magnetic single-hole hollow microsphere comprises adding hydrophobization ferroferric oxide nano particles which contain hydrophobic organic polymers and an organic solution of a silicon dioxide precursor into water, mixing with catalyzer, generating into the polymer- ferroferric-oxide nano particle- silicon-dioxide composited microsphere after standing reaction for a period of time, separating the composited microsphere and removing the organic polymers to obtain the ferroferric oxide @ silicon-dioxide magnetic single-hole hollow microsphere. The ferroferric oxide @ silicon dioxide magnetic single-hole hollow microsphere can be used for embedding and conveying macromolecules and nano particles and has vast application prospect in biomedical fields such as targeted drugs and biological macromolecular carriers.

The invention discloses a preparation method of organic modified graphene and belongs to the field of preparation of two-dimension nano material graphene. The method is characterized by taking low-cost raw graphite as the raw material, adding different masses of dry ice for creating high-pressure and high-energy environment, preparing graphene via a ball milling method, simultaneously introducing nitrogenous organic matters in the ball milling process, taking nitrogenous organic matters as friction agents and modifiers for simultaneously preparing graphene and carrying out in-situ modification to prepare a nitrogenous organic matter modified graphene structure. Through the preparation method of organic modified graphene, graphene with a circular microstructure is prepared by controlling reaction time, reaction pressure and the ratio of the raw graphite to the nitrogenous organic matters; a low-cost and high-efficiency method for preparing graphene with organic modified surface and complete body structure is developed; the problems of high cost, long preparation cycle, low dispersibility and poor interfacial adhesion caused in large-scale application of graphene are solved; the method has a great significance in industrial production and application of graphene.

The invention discloses a photocurable polyetheretherketone oligomer. The photocurable polyetheretherketone oligomer has molecular weight of 1000 to 10000 and has a general structural formula shown inthe description. In the formula, n is greater than or equal to 1 and less than or equal to 10, R1 represents one or more of groups shown in the description, R2 represents one or more of groups shownin the description, R3 represents one or more of O and groups shown in the description and R4 represents one of H and CH3. The invention also discloses a preparation method of the photocurable polyetheretherketone oligomer. The preparation method improves the solubility of polyetheretherketone in an active diluent, realizes the unsaturation and molecular weight controllable preparation of the polyetheretherketone oligomer and solves the problems of dissolution difficulty and melting difficulty. Through use of the active double bond, the polyetheretherketone resin can be directly and fast curedand molded without the conventional high-temperature molding method.

The invention provides a droplet generator and a droplet preparation method and relates to the technical fields of liquid micronization and droplet preparation. The droplet generator comprises a droplet generator main body, a normal-bright point light source, a photodetector, electrode plates and a high voltage pulse power supply; the droplet generator main body contains a grounded stainless steel capillary tube; sealed water baths are arranged at the periphery of the stainless steel capillary tube; the normal-bright point light source shares one wire with the stainless steel capillary tube and the photodetector; the electrode plates are fixed on the two sides of an outlet of the stainless steel capillary tube through insulation connecting rods respectively; and the high voltage pulse power supply can send out transient pulse voltage through an external trigger signal of the photodetector and transfers the transient pulse voltage to the two electrode plates at the same time, and polar droplets rapidly drop when growing to fixed size. The droplet generator and the droplet preparation method can be suitable for controlling generation of signal droplet under extreme environment conditions.

The invention discloses a suction type two-stage shock wave focusing ignition engine combustion chamber and a working method thereof, and belongs to the technical field of detonation engines. The combustion chamber comprises a first cavity body, a first combustion chamber shell, a first shock wave focusing concave surface, two rotating valve flaps, a pre-cooling chamber concave surface, a second shock wave focusing concave surface, a divergent section, a second combustion chamber cavity body, a cold oil pipe, a first heat oil pipe, a second heat pipe and a rotary fuel atomization nozzle. By rotating the rotating valve flaps, intermittent jet flow of air is controlled, so that intermittent shock wave focusing ignition detonating mixed combustible gas in a shock wave focusing chamber is realized, and the reliability of detonation of the engine combustion chamber is further improved through the forward and reverse arranged two-stage shock wave focusing concave cavities. According to the combustion chamber and the working method, the combustion chamber can stably realize high-frequency shock-wave-focused ignition while axially air sucking like a traditional engine, the engine combustion chamber quality is effectively improved, the thrust performance of the engine is improved, and a new technical way is provided for developing a practical high-power detonation engine.

The invention relates to gravity filling mortar, which is characterized by consisting of the following components in percentage by weight: 40 to 60 percent of sulphoaluminate cement, 0.05 to 1 percent of water reducing agent, 0.01 to 0.1 percent of retarder, 0.005 to 0.05 percent of early strength agent, 0.001 to 0.01 percent of stabilizer, 0.01 to 0.1 percent of antifoaming agent and the balanceof aggregate. The various performance indexes of the gravity filling mortar are superior to those of the traditional filling mortar and other similar products; and initial fluidity is more than or equal to 360mm, the retention value of 30mm fluidity is more than or equal to 340mm, 2h compressive strength is more than or equal to 20MPa, 1d compressive strength is more than or equal to 50MPa, 28d compressive strength is more than or equal to 60MPa, 56d compressive strength is not less than 28d strength, 90d compressive strength is not less than 56d strength, 1d vertical expansivity is more thanor equal to 0.02 percent, 28d shrinkage is less than or equal to 0.1 percent, and bleeding and settlement are avoided.

The invention discloses a data security protection system and method based on the Internet of Things. The system comprises an Internet of Things terminal identity authentication module, a terminal network traffic encryption module, a background traffic decryption module, a background identity authentication module, a traffic protocol analysis module, a sensitive data detection module and a physical encryption machine control module. According to the invention, multiple data security software and hardware are combined, so that more transparent sensitive data protection and automatic data desensitization which are non-inductive to a user under the scene of the Internet of Things are realized, and the effect of data security protection is achieved.

The invention discloses a laser micro-propelling device and method based on nanometer fluid micro-droplet work mediums. The device comprises a thruster shell body, a work medium cabin body, an auxiliary gas storage tank and a microflow control assembly; the auxiliary gas storage tank and the work medium cabin body adopt an integrated design, and the auxiliary gas storage tank is communicated withthe work medium cabin body through an adjusting valve; the work medium cabin body is tightly connected with the thruster shell body, and the microflow control assembly penetrates through the work medium cabin body and the thruster shell body; the auxiliary gas storage tank is communicated with the microflow control assembly; the work medium cabin body is communicated with the microflow control assembly. Generation and manipulation of nanometer fluid micro-droplets are achieved through the microflow control assembly; focusing of incidence laser beams is achieved through a reflecting mirror of the inner surface of the thruster shell body, the nanometer fluid micro-droplets enhance absorption of irradiation laser and causes intensive crushing, and a counteractive propelling force is generatedon the surface of the thruster shell body. Structural integration and functional characteristics are remarkable, selection of the propelling work mediums is unique, and correspondingly the laser micro-propelling device has the propelling effects of high specific impulse, a high impulse coupling coefficient and high energy conversion efficiency and meanwhile makes a propelling process controllable.

The invention discloses a method for intelligently finding and locating address translation equipment. Monitoring equipment hardware bypasses on a core switch of a management and control network; a core monitoring program, a data analyzing program and an equipment scanning program are embedded in the monitoring equipment hardware; the core monitoring program is used for mirroring all communication data packets passing through the core switch to a local server in real time; the data analyzing program is used for unpacking the communication data packets mirrored to the local server, acquiring characteristic information and analyzing the IP address of suspicious NET equipment; and the equipment scanning program is used for independently scanning the suspicious NET equipment and directly obtaining information of the suspicious NET equipment. The method for intelligently finding and locating the address translation equipment disclosed by the invention has the function of independently finding the NET equipment; by means of characteristic modelling analysis and a similarity weighted algorithm, the high-efficiency controllability and the manageability of a network boundary can be realized; the network stability is improved; and the information security in a special network environment can be enhanced.

The invention discloses a difficult-to-dispose soil impurity separating device. The difficult-to-dispose soil impurity separating device comprises a base, the right side of the upper end face of the base is fixedly provided with a mixing box, the mixing box is internally provided with a mixing space, a rotating disc box is arranged in the center of the upper end face of the mixing box, and the rotating disc box and the center of the upper end face of the mixing box are integrally connected; a water tank is fixedly arranged on the right side of the upper end face of the mixing box, the left side of the upper end face of the base is provided with a load-bearing base, and the upper end of the load-bearing base is fixedly provided with a grinding box which is internally provided with a grinding space; and the right end face of the grinding box is provided with a motor box, and the motor box and the grinding box are of an integrated structure. During working of the difficult-to-dispose soilimpurity separating device, large soil blocks are squeezed and crushed, so that the solution forming efficiency is increased, the time cost is saved, the flow-in and flow-out speeds are controlled through a solenoid valve, the adding proportion of a solvent is ensured, the controllability in the technology process is achieved, interference is reduced, and the high efficiency of soil impurity separating is ensured.

The invention discloses a window light control method and device of a virtual building model, a processor and a terminal. The method comprises the steps that in the process of obtaining and generatinga virtual building model according to a preset rule, window texture data and window index data are generated, and the preset rule is used for defining hierarchical building description logic; and window light is rendered by adopting the window texture data and the window index data. According to the invention, the technical problems of high operation complexity, high development cost and low development efficiency of the provided method for controlling the lighting of the virtual building model at night in the related art are solved.

The invention discloses a method for solving IP address conflicts when SLB performs SNAT, and relates to the technical field of network clusters. The method comprises the steps that an SDN controllerconfigures an address pool in advance; when the virtual service IP is created, the SDN controller takes out the IP with the minimum id from the IPs in the unallocated state according to the state of the IP address in the address pool and stores the IP in storage for later use; when a real server group is created, the IP is added into the SNAT_Pool to replace the original VIP; an address of an entry on the Border is added as an IP of SNAT_Pool; after the LB instance is safely released, the IP in the SNAT_Pool is recycled by the address pool. According to the method, the IP address is automatically distributed to the SNAT_Pool through the SDN controller, and the IP address in the SNAT_Pool can be dynamically maintained, so the high controllability is achieved; the problem of IP address conflict when SNAT_Pool is configured on LB equipment is solved.

The invention discloses a temperature control device for refining a metal solidification structure by use of pulse current, and belongs to the field of metal solidification control. The temperature control device mainly comprises temperature measurement thermocouples, a temperature control and data acquisition device, and displacement and guiding devices. The device is mainly characterized in that the process temperature is controlled and measured when a metal melt is processed by use of pulse current. The temperature measurement thermocouples measure the temperature of a metal melt in real time, and the temperature control and recording device controls the temperature of the metal melt and acquires data of the temperature. The device has outstanding advantages in application of metal melt processing by pulse current under heating of a tubular resistance furnace. By adopting the device, the temperature of a metal melt can be measured accurately, operation is simple, the error is small, and the influence of pulse current to the process of metal solidification can be analyzed based on acquired data. The device has positive significance to accurate control of metal melt temperature and controllability of the processing process during metal solidification structure refining by use of pulse current.

The invention provides a Co(II)-based crystalline catalyst with a layer pillaring structure. A mixed ligand is formed by 2,3,6-tri(4-pyridyl)-1,3,5-triazine(tpt) and a 5-substituted isophthalate derivative; Co(II) is used as a center ion, and the mixed ligand and the CO(II) are assembled into the Co(II)-based crystalline catalyst with the layer pillaring structure. The invention also provides a preparation method of the catalyst. The preparation method comprises the following steps of mixing the mixed ligand and cobalt nitrate hexahydrate, so as to prepare into a Co(II)-tpt precursor solution; transferring the precursor water solution into a hydrothermal kettle, performing solvent thermal reaction, sucking and filtering, washing, drying, and separating, so as to obtain the Co(II)-based crystalline material with the layer pillaring structure. The Co(II)-based crystalline material has the advantages that the specific surface area is larger, the conjugate system is larger, the catalysis activity on the Knoevenagel condensation is higher, and the maximum catalysis efficiency is 99%.

The invention provides an intelligent production management method for a balance-axle bracket through lost-foam casting. The method specifically comprises the following steps that (1) a production management system server terminal product is used for issuing a production plan to a production workshop central control machine; (2) a production workshop divides the production plan into a plurality ofworking procedure plans, and issues the working procedure plans; and (3) all working procedure information is issued to a production management system server terminal and the production workshop central control machine for storage through a mode combining laser code marking with two-dimensional code scanning or through central control machines in all lower production working procedures. Accordingto the method, the production management system server terminal, the production workshop central control machine and the production working procedure central control machines communicate with one another through a local area network, the mode combining the laser code marking with the two-dimensional code scanning is adopted, so that intelligent production management is realized; and the production management quality is controlled in a centralized manner, data and information of a production process are displayed in real time, collection and processing of quality data and information of castings are ensured, and the controllable and traceable purposes of the product quality are realized.