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65results about How to "Effective control quantity" patented technology

Method for producing steel plate of petroleum storage tank by using direct quenching process

ActiveCN102230057AImprove hardenabilityEffective control typeHeat-affected zoneHigh energy
The invention discloses a method for producing a steel plate of a petroleum storage tank by using a direct quenching process. The invention provides a chemical composition of special petroleum storage tank steel and adopts a direct quenching process. The method comprises the following steps of: heating a steel blank to 1100 to 1280 DEG C, rolling into a steel plate in re-crystallization and non-recrystallization stages; carrying out on-line quenching operation under the conditions that the temperature of the steel plate is between 780 DEG C and 900 DEG C, the average cooling rate ranges from 25 DEG C / s to 60 DEG C / s, the cooling terminal temperature is less than or equal to 350 DEG C, and performing off-line tempering on the steel plate subjected to quenching. Compared with the conventional high-energy-consumption hardening process based on the combination of off-line tempering and tempering, the method provided by the invention has the advantages of short production flow and low energy consumption and the prepared steel plate has good general mechanical properties and high heat input welding property. The yield strength of the steel plate is more than 490 MPa and the tensile strength of the steel plate is more than 610 MPa. In case of high heat input welding (less than or equal to 400 KJ / cm), a welding heat affected zone maintains excellent low-temperature toughness, and the mean value of work done by impact at -20 DEG C is more than 50 J.
Owner:HUNAN VALIN XIANGTAN IRON & STEEL CO LTD +1

Fixture for milling end faces of workpieces in batches

InactiveCN105269356AEffective control quantityEasy to control the number of milling operationsPositioning apparatusMetal-working holdersBall screwOperation mode
The invention relates to a fixture for milling end faces of workpieces in batches. The fixture mainly comprises a workbench, wherein four sliding grooves are formed in the workbench in front and back; a positioning plate block is arranged at the right ends of the sliding grooves; clamping plates are mounted in the sliding grooves in a sliding manner; the lower ends of the clamping plates are connected with ball screws horizontally arranged; the left ends of the ball screws are connected with bevel gears I; the bevel gears I are meshed with bevel gears II; the bevel gears II are connected with rotating shafts; the lower parts of the rotating shafts are connected with clutch gears; the right ends of the clutch gears are meshed with a double-side rack mounted below the workbench in the manner of sliding front and back; the right end of the double side rack is meshed with a driving gear; and the driving gear is connected with a rotary table. The fixture provided by the invention not only has the function of quickly clamping multiple workpieces at one time in a convenient and rapid operation mode and a gear meshing transmission mode, but also can effectively control the number of clamped workpieces and further can indirectly realize the effects of controlling milling number of workpiecess and increasing the processing speed.
Owner:WUHU TAINENG ELECTRIC APPLIANCES

Photovoltaic cell appearance defect classification method based on multi-channel residual neural network

The invention relates to a photovoltaic cell appearance defect classification method based on a multi-channel residual neural network. The method classifies the photovoltaic cell appearance defects based on a depth learning algorithm of a multi-channel input residual neural network. Firstly, the acquired photovoltaic cell sheet appearance image is preprocessed. 20% of that target image are randomly selected as a t sample set, the remaining target images are manually sorted, label are added, the size of the target images is quantized and multi-channel information in the target images is extracted, so that the training sample sets with fixed scales are obtained respectively, and the sample sets are verified. The training set is inputted into the residual neural network, and the multidimensional output eigenvalue matrix of the image is obtained. According to the extracted multi-dimensional eigenvalue matrix, the verification set image features are loaded into softmax classifier for classification, and the classification results are compared with the labels, and the test data and multi-dimensional eigenvalue matrix are loaded into the classifier to obtain the final classification. Thisapplication has high accuracy and high speed.
Owner:HEBEI UNIV OF TECH

Inkfish egg attaching frame

ActiveCN110338109AEffective control quantityAvoid the problem of severely reduced hatchabilityClimate change adaptationPisciculture and aquariaBiologyEgg laying
The invention discloses an inkfish egg attaching frame, and aims at providing the inkfish egg attaching frame which can effectively control the number of each string of eggs of inkfish eggs, and effectively solve the problem that a large quantity of the inkfish eggs are stacked together, and the inkfish eggs surrounded in the middle suffer from development retardation or even rot and die. The inkfish egg attaching frame comprises a supporting framework and several inkfish egg laying mechanisms. The supporting framework comprises a bottom frame, a top frame and supporting rods connecting the bottom frame and the top frame, wherein the supporting framework sinks to the seabed and is supported on the seabed through the bottom frame. Each inkfish egg laying mechanism comprises a mounting frame, several induction bodies simulating the shapes of inkfish eggs, a vertical guide cover arranged on the mounting frame, a vertical guide rod slidably arranged in the vertical slide cover, an annularmounting plate which is arranged on the vertical guide rod and located below the vertical guide cover, and several interference stop rods uniformly distributed in the circumferential direction of thevertical guide rod; the mounting frame is suspended below the top frame through a connecting rope, so that the inkfish egg laying mechanisms are suspended below the top frame.
Owner:MARINE FISHERIES RES INST OF ZHEJIANG

Hearing recognition sensitivity testing method

InactiveCN107049333AAvoid prolonged stimulationAvoid Threshold ErrorsAudiometeringSensorsTime historySensitivity testing
The invention discloses a hearing recognition sensitivity testing method. The method comprises the steps of a, setting testing parameters of a tested sound, wherein the testing parameters comprises a frequency value, a loudness value, stimulus time-history and stimulus interval time; b, determining a testing sequence of the tested sound; c, giving the tested sound, and conducting a test, wherein the frequency value is bigger than or equal to 1 Hz, the loudness value is bigger than equal to 1 dB, and the stimulus time-history is smaller than 1000 ms. In the hearing recognition sensitivity testing method, a digital technology is utilized to avoid inaccuracy of manual control operation, so that the tested sound is compared and tested on a lot of frequencies and loudness, a the situation that the stimulus time-history is too long can be avoided, the number of hair cells (bandwidth) participating in excitement is effectively controlled, a threshold value error caused when the stimulus of inner ear hair cells corresponding to a tested frequency point is too long is avoided, the frequency recognition ability, the loudness recognition ability and the time recognition ability of a testee are quickly detected, the accuracy of detection is improved, the obtained testing structure comprises a lot of detail information, and a more complete basis is provided for diagnosis of diseases.
Owner:FOSHAN BOZHI MEDICAL TECH CO LTD

Tea seedling black film mulching cultivation method

The invention discloses a tea seedling black film mulching cultivation method. The method comprises the steps that soil preparation is carried out in a conventional mode, and base fertilizer is applied sufficiently; earthing towards the center along fertilization furrows is carried out after fertilization to form planting ridges which are about 0.6 m wide and 0.10 m to 0.15 m high; the planting ridges of tea lines are covered with black mulching films flatly and tightly before tea seedlings are transplanted; black polyethylene blow molding agricultural films which are good in toughness, ageing resistant and good in shading effect are requested, the thickness of the films is 0.015 mm to 0.020 mm, the width is 0.8 m to 0.9 m, and the using amount of the mulching films is 5 to 6 kg in net weight per mu; tea seedling transplanting, seedling management, weeding, prevention and cure of diseases and pests and topdressing are carried out; the mulching films are recycled. The tea seedling black film mulching cultivation method can improve the survival rate of newly planted tea seedlings, tea gardens can be formed ahead of time for benefit acquiring, fertilizer and water can be utilized efficiently, weeds, the diseases and the insect pests can be controlled effectively, the investment of labor force and production management can be reduced, and production cost can be lowered.
Owner:贵州省现代农业发展研究所

A kind of liquid magnesium treatment process for ship plate steel

The invention discloses a liquid steel magnesium treatment process for ship plate steel and belongs to the field of clean steel smelting. The process comprises the following steps that firstly, the station and time for magnesium treatment are determined, wherein Mg-Al-Fe alloy core-spun yarn is added after an LF procedure alloy is slightly adjusted or after RH procedure vacuum treatment is carried out; secondly, according to the content of acid dissolved aluminum in steel, on the premise of guaranteeing the magnesium treatment effect of the Mg-Al-Fe alloy core-spun yarn, the aluminum feeding amount and the magnesium treatment wire feeding amount are coordinately configured; and next, magnesium treatment is carried out, wherein in the LF or RH procedure, a core-spun yarn feeding method is adopted to add the Mg-Al-Fe alloy core-spun yarn into liquid steel of the ship plate steel, and finally, the finished product liquid steel is obtained. The liquid steel magnesium treatment process for the ship plate aluminum deoxidizing steel is applied to the ship plate steel refining process, and the cleanliness of the ship plate steel and the ingredients, number, particle size and distribution of inclusions in the steel can be controlled; and by means of the method, the cleanliness of the ship plate steel and the control level of nonmetallic inclusions are improved, and therefore the mechanical performance and the stability of the ship plate steel are improved.
Owner:NORTHEASTERN UNIV LIAONING

Control method of demand response management platform based on block chain technology

The invention relates to a control method of a demand response management platform based on a block chain technology. The control method comprises the following steps: enabling a smart power grid to issue a DR event signal; broadcasting a DR event signal through the intelligent terminal; broadcasting redundancy and demand quantity; constructing a block chain electric power distributed account book; and performing user matching and resource integration of the DR event, and constructing a point-to-point transaction smart contract. The design is reasonable, the method is used for distributed management, control and DR verification in an intelligent power grid. Traceable and tamper-proof flexible transaction and nearly real-time DR verification are realized through the characteristics of the block chain. High reliability and decentralized operation are ensured; the whole demand response management platform is composed of a plurality of peer nodes including a power producer, a power company, a user, a load integrator, a supervision mechanism and the like, all stakeholders can carry out interaction coordination through an architecture platform based on a block chain, comprehensive and scattered energy demand and power generation cooperation are supported, and stable operation of a power grid is ensured.
Owner:STATE GRID TIANJIN ELECTRIC POWER +3

Cold-rolled silicon steel convexity and wedge shape dynamic setting control method

ActiveCN107127214AInhibit the impact of poor quality on the same boardSolve the problem of low control accuracy of transverse thickness uniformityRoll mill control devicesMetal rolling arrangementsLoop controlClosed loop
The invention relates to a cold-rolled silicon steel convexity and wedge shape dynamic setting control method. The method includes the steps that (1) a convexity and wedge shape preset control model is built; (2) the roller bending and pressing inclination of a rack S1 is adjusted; (3) the roller bending and pressing inclination of a second rack S2 and the roller bending and pressing inclination of a third rack S3 are adjusted; and (4) a convexity and wedge shape closed loop control model is built, wherein convexity and wedge shape closed loop control is achieved by adjusting the roller bending and pressing inclination of the rack S1 according to the convexity and wedge shape deviation actually measured by an outlet edge dropping instrument of a fifth rack S5, and please see the computational formula in the specification, wherein deltaF<w,1>=W<5m,a0>*K<ws,5>. According to the cold-rolled silicon steel convexity and wedge shape dynamic setting control method, convexity and wedge shape dynamic setting control over rolling mill inlet and outlet instrument detecting strip steel fracture surface measured data is used, and influences of the convexity and wedge shape deviation on the final intra-plate deviation quality are effectively restrained; and the outlet edge dropping instrument is used for cooperating with feedback control, the strip steel transverse thickness uniformity control accuracy in the cold-rolled silicon steel production process is improved, the lamination rate and the permeability of silicon steel products are accordingly improved, and the aim of improving the finished product quality and market competitiveness is achieved.
Owner:ANGANG STEEL CO LTD

Crataeguspinnatifida bunge alpha hydroxyl acid beverage and preparation method thereof

ActiveCN108065155AMake sure it's authenticEnsure naturalnessFood ingredient as colourFood preservationFruit juiceVitamin C
The invention discloses a preparation method of a crataeguspinnatifida bunge alpha hydroxyl acid beverage. The crataeguspinnatifida bunge alpha hydroxyl acid beverage comprises adding crataeguspinnatifida bunge oligosaccharide with a polymerization degree of 12-14 into crataeguspinnatifida bunge juice instead of saccharides, sweetening agent and preservative agent, performing low-temperature short-time sterilization at 65-75 DEG C for 5-10 minutes to obtain the crataeguspinnatifida bunge alpha hydroxyl acid beverage. The preparation method of the crataeguspinnatifida bunge alpha hydroxyl acidbeverage is simple in process and convenient to operate, can effectively protect activity of vitamin C to fully retain nutrition and flavor of crataeguspinnatifida bunge and effectively prolong the shelf life of the crataeguspinnatifida bunge alpha hydroxyl acid beverage. According to the prepared crataeguspinnatifida bunge alpha hydroxyl acid beverage, the raw materials of both juice and additives are from crataeguspinnatifida bunge, and both the content and the nutritional value are high, so that the crataeguspinnatifida bunge alpha hydroxyl acid beverage is rich in flavor and taste and wellachieves the functions of reducing blood pressure and fat, promoting digestion to eliminate stagnation, guiding qi, invigorating blood circulation, dissipating blood stasis and resisting radiation and aging as well as good healthcare effects of improving body immunity.
Owner:承德怡达食品股份有限公司

Method for killing limnoperna lacustris in long-distance raw water conveying pipe through hydrogen peroxide

The invention discloses a method for killing limnoperna lacustris in a long-distance raw water conveying pipe through hydrogen peroxide, and relates to a method for killing the limnoperna lacustris in a raw water conveying pipe. The method comprises the steps that the hydrogen peroxide is thrown in the long-distance raw water conveying pipe at the temperature of 20 DEG C to 30 DEG C for 4 to 14 days, and the concentration of the hydrogen peroxide in the raw water is controlled to be 1 to 10 mg/L. According to the method for killing the limnoperna lacustris in the long-distance raw water conveying pipe through the hydrogen peroxide, the hydrogen peroxide not only has the effect of killing the limnoperna lacustris, but also has the good pre-oxidation effect as pre-oxidant. The hydrogen peroxide has the good removing effect on turbidity, algae, bacteria and coilform groups, and the difficulty of the follow-up water processing technology is not increased. The method for killing the limnoperna lacustris in the long-distance raw water conveying pipe through the hydrogen peroxide can effectively control the amount of the limnoperna lacustris in raw water and in the pipe, and by means of the method, operation is safe and convenient, and the feasibility is high.
Owner:HARBIN INST OF TECH

Punching and sowing integrated machine for tea planting

The invention discloses a punching and sowing integrated machine for tea planting, which comprises a box body. A plurality of first grooves are formed in the bottom end of the box body at equal intervals, second grooves are formed in the groove walls of the two sides of each first groove, electric hydraulic cylinders are fixedly installed at the top ends of the two second grooves, connecting blocks are connected to the output ends of the two electric hydraulic cylinders, and one sides of the two connecting blocks are fixedly connected with the two sides of a punching cylinder correspondingly.According to the punching and sowing integrated machine for tea planting, the connecting blocks installed on the two sides of the punching cylinder are pushed through the electric hydraulic cylinders,the ground is effectively punched through the punching cylinder, and therefore tea seeds are sown. Sliding blocks are pushed to move through electric telescopic rods, the punching diameter is effectively controlled, and through installed limiting barrels, the quantity of the tea seeds put into the holes is effectively controlled, resource waste caused by excessive putting of the tea seeds is prevented, and the situation that the germination rate of the tea seeds is affected due to putting of too few tea seeds is avoided.
Owner:新沂经济开发区建设发展有限公司

Controllable milling end face clamp for batches of workpieces

InactiveCN105269372AEasy to control the number of milling operationsEffective control quantityWork clamping meansPositioning apparatusGear wheelEngineering
The invention relates to a controllable milling end face clamp for batch of workpieces. The controllable milling end face clamp comprises a workbench, wherein four sliding grooves uniformly distributed in the workbench on the horizontal direction; a positioning plate is arranged at the right end of each sliding groove, and a clamping plate is mounted in each sliding groove in a sliding manner; the lower end of each clamping plate is articulated with a connecting rod, and a gear is arranged on the left side of each connecting rod; the left end of each connecting rod is articulated at the edge end of each gear, and the left side of each gear is meshed with a rack; a fixing plate for longitudinally mounting each rack in a sliding manner is arranged on the left side of each rack, and an adapter plate is arranged under each rack; a transiting extending end is mounted at the rear end in each adapter plate in a sliding manner, a push plate for fixedly mounting the adapter plate is arranged at the lower end of each adapter plate, and the lower end of the push plate is connected with an air cylinder. The controllable milling end face clamp can quickly clamp multiple workpieces in one time in a high automation way, and can also effectively control the quantity of the clamping workpieces through the fore-and-aft sliding of the transiting extending ends, therefore indirectly achieving the effects that the milling quantity of workpieces is conveniently controlled and the processing speed is increased.
Owner:WUHU TAINENG ELECTRIC APPLIANCES

Method for killing fresh water moule in raw water transportation pipeline by utilizing potassium permanganate

The invention discloses a method for killing fresh water moule in a raw water transportation pipeline by utilizing potassium permanganate and relates to a method for killing the fresh water moule in the raw water transportation pipeline, solving the problems that the existing method for killing the fresh water moule in the raw water transportation pipeline is complicated in operation and is poor in feasibility, disinfection byproducts are generated by using a killing method in which a chloride-containing disinfector is used so as to threaten the safety of drinking water. The method comprises the step of continuously adding the potassium permanganate in the raw water transportation pipeline for 5-12 days, wherein the concentration of the potassium permanganate in each L of raw water is controlled to 1.2-1.5 mg, so that the fresh water moule in the raw water transportation pipeline is killed. The potassium permanganate can oxidize and kill the fresh water moule, the mortality of the fresh water moule is above 70%; and simultaneously, the potassium permanganate can remove fume in water and can exert a nuclear coagulation effect of manganese dioxide, thus the purposes of flocculation and precipitation are achieved in advance, and the difficulty of subsequently water treatment process is not increased. According to the invention, operation is simple, safe and stable, and no disinfection byproducts are generated, thus the method has an extremely high practicability.
Owner:HARBIN INST OF TECH

Nickel strip manufacturing process method capable of reducing generation of internal bubbles

The invention discloses a nickel strip manufacturing process method capable of reducing generation of internal bubbles, and belongs to the technical field of non-ferrous metal material processing. Thenickel strip manufacturing process method comprises the following process flows: S1, firstly, an electrolytic nickel plate which is not smelted is baked, and then cooling is conducted in an atmosphere of inert gas to obtain a pure blank; S2, the obtained pure blank is put into a smelting furnace to be smelted, and a pure nickel ingot is obtained; and S3, primary hot rolling is conducted on the obtained pure nickel ingot by using microwave rolling equipment. According to the method, through the designed microwave rolling equipment, hot rolling equipment, primary hot rolling, secondary hot rolling, warm rolling and annealing processes, on the basis that the compactness of a nickel plate can be improved and the number of micropores and bubbles in the nickel plate and on the surface of the nickel plate can be effectively controlled, a large number of bubbles can be further eliminated, the micropore number can be reduced, and new microscopic cracks and bubbles cannot be generated, so thata metal nickel strip is more compact in structure, high in rolling precision and good in effect.
Owner:无锡腾达海川新材料有限公司
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