105results about How to "No additional investment" patented technology

The invention provides an anti-counterfeiting method by utilizing an intelligent mobile phone to identify code saw-teeth. The method comprises the steps of amplifying and photographing saw-teeth of a product code and image-text margin; storing the photographed saw-tooth characteristic information into an anti-counterfeiting system database to be used as anti-counterfeiting characteristic filing information. The method is simple and easy to implement, and for the user product of the existing drug electronic supervision code, the amplified picture of the saw-teeth is stored when the product is under the automatic quality inspection and is used as the anti-counterfeiting characteristic filing information to be stored. By implementing the method, the equipment investment is not increased, the procedure is not increased, the cost is not increased, an effective anti-counterfeiting function of the product can be realized, and the bug of the digital anti-counterfeiting technology such as the telegram code anti-counterfeiting technology can be blocked up.

The invention relates to method for producing strengthen macromolecule polyethylene coil tube, which uses at least one layer of macromolecule polyethylene section material as coil material alternatively or irregularly arranged, and nearby side walls are fused to connected or adhered by fused material, to be screwed to form tube wall. The coil material is drawn to direct the molecule longitudinally. The macromolecule polyethylene base material is added with strength material and/or flameproof material and/or static resistance composed. The fusing connecting material is plastic polymer or added with strength material and/or flameproof material and/or static resistance, to form plastic fused material. The strength material is distributed in the coil material and/or fusing connecting material, directionally distributed along the screw of high-strength coil tube. The invention has high strength, flameproof property and static resistance.

The invention provides a traction power supply system resonance suppression method and device based on an adaptive notch filter. By adding the adaptive notch filter in a locomotive network-side rectifier control method, a control instruction at oscillation frequency is allowed to be attenuated greatly, and thus generation of system resonance is suppressed through control ability of a locomotive itself; and under the condition of not increasing extra investment, safe and stable operation of a power supply system is ensured. Through the adaptive notch filter, a low-frequency resonant component in a grid-connected current is extracted and multiplied by an appropriate proportion coefficient for attenuation, and then, a component, obtained after low-frequency resonance attenuation in the grid-connected current, is subtracted from a grid-connected instruction current obtained by a DC voltage regulator, so that effects of stabilizing the grid-connected current and voltage and suppressing oscillation are achieved, suppression effect is good, hardware cost is not increased, and no extra investment is caused.

The invention provides a bicrystal structure anticorrosion hard alloy and a preparation method thereof. The hard alloy is prepared by the following steps: taking hard tungsten carbide (WC) and binding phase nickel (N) as the matrix, and then subjecting the matrix to steps of blending, ball-milling, pressing, and sintering so as to obtain the hard alloy; wherein the tungsten carbide (WC) is composed of coarse particles and fine particles, and the weight ratio of the coarse WC particles to the fine WC particles is 7:3. The preparation method has the advantages of simple technology and low cost, and the prepared bicrystal structure anticorrosion hard alloy has the advantages of wear resistance, impact resistance, corrosion resistance, good comprehensive property, and suitability for being applied to fields such as petroleum exploitation, water treatment, and the like.

The invention provides a method for preparing a foamed aluminum composite material, relates to the manufacturing of alloy with open or closed pores, and specifically relates to a method for compounding dispersed embedded manganese particles and closed-pore foamed alumium. The method comprises the following steps of: smelting commercially pure alumium into alumium melt and preserving heat, tackifying the alumium melt, adding manganese particles, foaming the alumium melt with manganese and preserving heat, cooling in air so that the foamed alumium is solidified and formed, and then cooling by wind, thereby obtaining the closed-pore foamed alumium composite material high in compression strength, and high in porosity and ductile fracture finally. The method provided by the invention overcomes the shortcomings of low compression strength of the commercially pure alumium-based foamed alumium composite material prepared by the prior art and easy brittle fracture in the compression process.

The invention discloses a coagulating agent for coking wastewater treatment and a process for applying the same. The coagulating agent for coking wastewater treatment is compounded by using ferrous sulfate, aluminium sulfate, ferric chloride, polysilicate and zeolite powder as raw materials; and the coagulating agent comprises the following raw materials in percentage by mass: 30 to 70 percent of the ferrous sulfate, 20 to 60 percent of the aluminium sulfate, 3 to 10 percent of the ferric chloride, 1 to 5 percent of the polysilicate and 1 to 5 percent of the zeolite powder. The application process comprises that: in a coagulating treatment stage after coking wastewater is subjected to A/O biological treatment, the PH value of the coking wastewater subjected to A/O biological treatment is regulated to be between 6 and 9; and the coagulating agent for coking wastewater treatment is added into the coking wastewater for coagulation treatment so that the final concentration of the coagulating agent for coking wastewater treatment in the coking wastewater is between 900 and 1,500 mg/L. Compared with the other coagulating agents, the coagulating agent has high efficiency, economization and excellent coagulating effect; and the application process is simple and has low investment cost.

The invention provides a preparation method of a high-solid content catalytic cracking catalyst. The method comprises the following steps: (1) mixing pseudo-boehmite, a binder and water and stirring evenly; (2) adding a soluble salt of which an anion is selected from Cl<->, NO3<->, ClO4<->, CH3COO<-> or HCOO<->, stirring evenly and standing; (3) adding an acid to the slurry obtained in the step (2), stirring and adding the acid in multiple times; and (4) adding a molecular sieve and the clay to the slurry obtained in the step (3), pulping and mixing evenly to prepare catalyst slurry, carrying out spray drying, solidification roasting, water adding and stirring, filtering and drying to prepare the high-solid content FCC catalyst. In the process of preparing the high-solid content catalyst by adopting the preparation method, the peptization speed is controllable and the mobility of the slurry is good; and heating and warming are not needed in the peptization process and a hydrochloric acid is replaced with other acids in the acidifying peptization process, so that the damage of a hydrochloric acid gas to the molecular sieve in the catalyst roasting process is avoided and the activity of the catalyst is improved.

The invention relates to a nitrogen making system for a ship. The nitrogen making system comprises a compressor, a nitrogen making machine and/or a nitrogen buffer tank as well as a flow pressure regulating device which are sequentially connected through pipelines, wherein the compressor comprises at least one compression unit and is used for providing compressed air; the nitrogen making machine comprises at least two nitrogen making units and is used for making nitrogen; the nitrogen buffer tank is used for storing and buffering the nitrogen; the flow pressure regulating device is used for regulating flow and pressure. Compared with a conventional nitrogen making system, the nitrogen making system is not equipped with an air dryer, an air buffer tank or a nitrogen buffer tank and can output the small-flow and high-pressure nitrogen, and the pressure of the nitrogen is higher than the highest output pressure of an air compressor. With the adoption of the means, the structure of the nitrogen making system in the prior art is simplified, device operation and nitrogen yield cannot be influenced, and device investment and energy are saved.

The invention discloses a new hard alloy material and a preparation method thereof. The hard alloy is prepared from the following components in percentage by weight: 9.0-10.0% of Ni powder, 0.8-1.2% of Cr powder, 0.2-0.3% of Cr3C2 powder and the balance of WC (wolfram carbide) powder. By adopting the proportional hard alloy mixture and the compound addition mode of Cr and Cr3C2, the carburization and/or decarburization defect of the product can be improved, thereby enhancing the corrosion resistance of the binding phase Ni and the hard phase WC, and refining the alloy grains. The hardness, wear resistance and corrosion resistance of the alloy are enhanced. The hard alloy product prepared by the method disclosed by the invention can satisfy the requirements for long-term water flow erosion endurability and low metallic element precipitation amount.

The invention discloses a method for suppressing vehicle network low-frequency oscillation and a system thereof. The method comprises the steps that a network side voltage instantaneous value, a network side current instantaneous value, DC side output voltage, DC side output current, a DC side output voltage given value, a network side filtering inductance value and a network side equivalent resistance value are acquired; a first initial modulation signal is obtained according to the network side voltage instantaneous value, the DC side output voltage, the DC side output voltage given value, the network side filtering inductance value and the network side equivalent resistance value; a second initial modulation signal is obtained according to the network side current instantaneous value, the resistance value of a preset virtual resistor and the network side voltage phase obtained according to the network side voltage instantaneous value; and difference processing is performed on the first initial modulation signal and the second initial modulation signal so that a difference value is obtained, and the difference value acts as an output PWM signal to the modulation signal of the PWM generator of a network side rectifier. The low-frequency oscillation of the vehicle network system can be effectively suppressed so that the stability of the vehicle network system can be enhanced without increasing hardware cost.

The invention discloses Fusarium fujikuroi GA-251 and applications thereof, wherein the Fusarium fujikuroi GA-251 is a Gibberella fujikuroia mutant strain and has high yield of gibberellin GA3. The Fusarium fujikuroi GA-251 is preserved in China Center for Type Culture Collection, wherein the address is Wuhan University, Wuhan, China, the postal code is 430072, the preservation number is CCTCC NO:M 2019201, the preservation date is March 25th, 2019. The strain is obtained by carrying out radiation composite mutagenesis on protoplasts through lithium chloride and cobalt 60, and gibberellin GA3production of the strain is improved by 20%. The method has the advantages of high titer and easy extraction of the final product, and overcomes the defects of low fermentation titer and high cost oforiginal processes.

The invention relates to a method for determining and maintaining the defect of a servo valve. In the method, the defect type is determined according to the static characteristic curve test result of the servo valve or the roller gap change condition of a rolling mill; the displacement of a valve plug is determined according to the hydraulic output power change of the servo valve, and the abrasion loss of a valve sleeve and the valve plug is determined according to the numerical value fluctuation degree of an internal leakage curve; fit clearance is reduced by improving the assembly accuracy of the valve plug and the valve sleeve; and the electrical zero of the servo valve is adjusted, and the relative position of a valve core and the valve sleeve is adjusted, so that the internal leakageof the servo valve and the abrasion of the valve core and the valve sleeve are reduced, the service life of the servo valve is prolonged, the reserve of spare parts and cost are reduced, and the thickness control accuracy of a steel plate and the qualification rate of a product are improved.

The invention discloses a saw tooth code anti-counterfeiting method. The saw tooth code anti-counterfeiting method comprises the following steps: printing codes or/and images and texts on an object to be printed by utilizing a printing machine, and forming individualized saw tooth edges at the edges of the codes or/and the images and texts; photographing and acquiring the individualized saw tooth edges of the codes or/and the images and texts; storing characteristic information of the photographed and acquired individualized saw tooth edges and coding information into a computer anti-counterfeiting inquiry system database accessed into the Internet and taking the information as anti-counterfeiting characteristic filing information for distinguishing the true from the false through checking by the public. According to the saw tooth code anti-counterfeiting method disclosed by the invention, the edges of the codes or/and the images and texts of a product are slightly deformed and are prepared into the individualized saw tooth edges; only pictures of the saw tooth edges are conveniently preserved when a product is automatically checked, and the pictures are used as the anti-counterfeiting characteristic filing information and are stored in the database, so that the investment is hardly increased, procedures are not increased and the cost is not increased; however, an anti-counterfeiting function is given to the product; the vulnerability that a thieve in the family is difficult to find of digital anti-counterfeiting technologies including electronic code counterfeiting prevention and the like is prevented.

The technological process of desulfurizing coking benzene to co-produce refined benzene and nitro benzene includes the following steps: adding (68-80) % concentration sulfuric acid solution, nitric acid and coking benzene in the volume ratio of (1-5) to (0.01-1.1) to 1 into a nitrifying reactor and continuous nitrification at 5-75 deg.c; separating the resultant in a separator before neutralizing and water washing; rectifying in a rectifying tower with top temperature 50-80 deg.c and top pressure of 0.05-0.1 MPa to produce nitro benzene in the tower bottom; desulfurizing the mixture of benzene and CS2 from the top of the rectifying tower in a desulfurizing tower with top temperature of 35-75 deg.c to produce benzene in the tower bottom while eliminating CS2 from the top; and other steps. The process has less benzene loss and high economic utility.

The invention discloses an easy-to-draw tire cord steel coil rod and a production method. According to the tire cord steel coil rod and the method, rough drawing speed of the tire cord steel coil rodis 8-10 m/s, intermediate drawing speed is 18-22 m/s, wet drawing speed is 18-20 m/s, the wire breakage rate is less than or equal to 1 time/100 t, the quality of molten iron entering a furnace and the quality of scrap steel are strictly controlled, the superheat degree of the molten steel, the continuous casting cooling strength, the heavy-pressure downward pressing amount, the grinding process and the high-speed wire rod rolling cooling system are set to be reasonable, the coil rod network cementite is less than or equal to 1.0 grade, the sorbitizing rate is greater than or equal to 95%, theproeutectoid ferrite is less than 0.5%, the intensity fluctuation range is less than or equal to 15 MPa, the surface defect depth is less than or equal to 0.05 mm, and the defect ratio is less than or equal to 0.8%.

The invention discloses a preparation method of a polyolefin pipe with high strength and high oxygen barrier properties. The preparation method comprises the steps of uniformly blending 100 parts of a polyolefin basal body and 1 to 60 parts of fiber-forming-phase resin, placing the mixture into a double-screw extruder, and extruding the mixture in a rotating extrusion mode at the temperature of a melting section of 180 to 280 DEG C and the temperature of an extrusion die of 170 to 280 DEG C, wherein the ratio of the diameter of the extrusion die to the diameter of a sizing sleeve is 1.25 to 4, and the ratio of the extrusion speed to the traction speed is 20 to 200 rpm:0.2 to 6.5 m/min in the stretching molding process. The annular tensile strength of the prepared pipe is improved by 7.0 to 69 percent compared with that of a traditional extruded pipe, and the oxygen permeability of the prepared pipe is reduced by 7 to 47 percent compared with that of the traditional extruded pipe. Since a melt convergence traction-cooling sizing way is adopted on the basis of the prior art, a fiber forming phase can be deformed, converged and formed in situ to form the fiber inside the pipe, the microfiber with the corresponding length-diameter ratio and content can be obtained, so that the annular tensile strength and the oxygen barrier property of the pipe can be simultaneously greatly improved.