20results about How to "Address mechanical properties" patented technology

The invention relates to a preparation method of a high-performance soybean protein emulsion film, which comprises the step of carrying out fibrosis denaturation on soybean protein by adopting an acetic acid-water binary solution, so that the hydrophobic property, the film-forming ability and the environmental interference resistance of the soybean protein can be remarkably improved. And further starting from a protein self-assembly fibrosis principle and a protein film forming theory, a soybean protein-based biological membrane with certain mechanical strength and flexibility is constructed through self-assembly fibrosis denaturation of protein molecules in an aqueous solution, so that the problems of poor mechanical property and high solubility of the existing protein-based biological membrane are effectively solved.

The invention relates to the technical field of winding wires, and provides a damp-proof high-voltage submersible motor winding wire and a preparation method thereof.The damp-proof high-voltage submersible motor winding wire sequentially comprises a conductor and insulating layers from inside to outside, the conductor is a round copper wire, the insulating layers comprise the first insulating layer, the second insulating layer and the third insulating layer, the first insulating layer wraps the conductor, the second insulating layer wraps the first insulating layer, and the third insulating layer wraps the second insulating layer. The third insulating layer wraps the outer side of the second insulating layer, the first insulating layer is a polyimide film I, the second insulating layer is fluoroplastic, and the third insulating layer is a polyimide film II. According to the technical scheme, the problem that in the prior art, a submersible motor winding wire is poor in insulativity and mechanical performance is solved.

The present invention discloses a strong and tough soy protein isolate-based film and its preparation process and application using a pulsed electric field for precise control. The strong and tough soy protein isolate-based film is prepared by mixing a soy protein isolate solution, a dialdehyde starch solution and a polyvinyl alcohol solution, adjusting the pH to 8.5-11, reacting for 10-50 minutes at 60-100°C and under the action of a pulsed electric field, and pouring the product into a culture dish, and drying the obtained product; the soy protein isolate-based film prepared by the present invention has excellent mechanical properties compared to other biomass film materials (cellulose, starch and chitosan films), the tensile strength of the material can reach 18.3MPa, and the elongation at break can reach 240.5%, which is 631% and 654% higher than the tensile strength and toughness of the soy protein isolate film with the addition of a traditional glycerol plasticizer; the obtained soy protein isolate-based film can block 97%-100% of the ultraviolet transmittance (≤400nm).

The utility model discloses a concrete supporting beam soil falling prevention device, which relates to the field of building construction devices, and comprises a supporting plate mechanism and a traction hanging ring arranged on the supporting plate mechanism, the supporting plate mechanism comprises a first supporting plate and a second supporting plate, the first supporting plate and the second supporting plate are both inclined downwards, and the traction hanging ring is arranged on the first supporting plate. The upper end of the first supporting plate is connected with the upper end of the second supporting plate, the first supporting plate and the second supporting plate jointly form a covering space with a downward opening, and the lower end of the supporting plate mechanism can cover a building supporting beam; when the supporting plate mechanism covers the building supporting beam, the supporting plate mechanism is isolated from the building supporting beam through a plurality of rolling wheels, and the rolling wheels are installed on the supporting plate mechanism. The first supporting plate and the second supporting plate incline downwards and then are combined, and are matched with the rolling wheels and the traction hanging ring, so that the aim of avoiding the falling risk after accumulation of muck on the building supporting beam due to the fact that the muck cannot be cleared away in time is achieved.

The utility model relates to filter press technical field discloses a kind of sludge dewatering filter presses, including filter frame, the filter frame upper slide connection has walking support, fixed assembly is provided on the walking support;The fixed assembly includes flush support, the flush support lower surface is fixedly connected with water sprayer, the water sprayer lower surface is fixedly connected with cleaning brush, the flush support upper end is fixedly connected with water pipe, water tank is provided at one end of the water pipe, the water tank upper surface is screw thread connection with motor two, the motor two output end is fixedly connected with water pump, the walking support inside rotationally connected with gear, the gear is fixedly connected with shaft in, and the shaft one end is fixedly connected with motor one output end.In the utility model, through the cooperation between water pump, water tank, water pipe, flush support and water sprayer and cleaning brush, the effect of automatically cleaning filter cloth is achieved, and the problems of mechanical injury and incomplete cleaning caused by manual cleaning are solved.

This invention relates to an energy dispatching method and system for a gravitational potential energy power generation system, belonging to the field of power generation system technology. The method includes: calculating the power gap by measuring the power of grid nodes and comparing it to a baseline, and then converting this into the target height of the gravity block. Based on this, the potential energy power generation capacity is deduced, the gravity block lifting and lowering sequence is planned, and the motor torque is allocated. Finally, based on the torque curve, the frequency converter and speed are adjusted to drive the gravity block, achieving dynamic conversion and balance between gravitational potential energy and grid electrical energy. This solves the technical problems of traditional solutions, which result in a disconnect between mechanical action and grid demand, inaccurate power output adjustment, and the generation of useless power surges or vacuum periods during acceleration and deceleration, which can worsen the power quality of the local grid.

The invention relates to the technical field of manufacturing of metal composite materials, and discloses a corrosion-resistant and wear-resistant bimetal composite cylinder liner which is prepared through the following steps that the inner wall of an outer-layer matrix steel pipe is pretreated and coated with an interface activation flux; raw materials containing waste steel, ferrochrome and the like are molten, ferrotitanium and ferroboron are sequentially added for alloying, then ferric oxide powder and metal yttrium are added for modification treatment, and inner-layer alloy liquid is obtained; the preheated outer-layer matrix steel pipe is placed in a rotating state, and the inner-layer alloy liquid is poured; and after the to-be-solidified pipe fitting is cooled to the room temperature, the pipe fitting is heated to the austenitizing temperature, heat preservation is conducted, and then isothermal quenching treatment is conducted. According to the method, interface oxides are effectively removed and firm metallurgical bonding is promoted by utilizing the interface activation flux; a core is formed through in-situ reaction of metal yttrium and ferric oxide so as to refine grains; and a lower bainite and retained austenite mixed structure is obtained through isothermal quenching, the comprehensive mechanical property of the cylinder sleeve is improved, and the service life of the cylinder sleeve is prolonged.

The invention discloses an orally disintegrating tablet and a preparation method thereof, and belongs to the technical field of pharmaceutical preparations. The orally disintegrating tablet comprises 0.5-30 wt% of an active component, 25-35 wt% of an adhesive, 25-65 wt% of a filler and 1-10 wt% of a suspending aid, the active component comprises an antipsychotic raw material medicine and / or an antiepileptic raw material medicine. The void ratio of the orally disintegrating tablet is controlled to be 40-90%, even if the active ingredient is a low-solubility raw material medicine, the orally disintegrating tablet also has the fluffy feeling like puffed food, good taste and pleasant experience, meanwhile, the provided orally disintegrating tablet enables the medicine to be rapidly released in the oral cavity, the disintegration time in the oral cavity is shorter than 5 s, and the orally disintegrating tablet is suitable for oral administration. Compared with the oral cavity disintegration time of about 20s of disintegrating tablets and the oral cavity disintegration time of about 15s of oral soluble films in the prior art, the tablet has remarkable advantages, improves the compliance of patients, and greatly reduces the possibility of Tibetan medicine and vomiting of the patients especially for patients with dysphagia.

The present invention proposes a repairable and recyclable fiber-reinforced resin-based composite material with damage reporting and a preparation method thereof, which belongs to the technical field of fiber-reinforced resin-based composite materials. The resin matrix of the composite material is composed of epoxy resin, curing agent, and microcapsules. A repairable and recyclable fiber-reinforced resin-based composite material with damage reporting is formed through a composite material molding process. The epoxy resin system of the present invention has the advantages of low viscosity and easy molding. At the same time, the composite material exhibits a strong color change under the action of external force, and can realize the damage self-reporting function; the composite material can also repair cracks, gaps and other difficult-to-detect damage multiple times to meet the performance requirements of continued service. In addition, epoxy resin energy and fiber energy can be completely separated. The fiber-reinforced epoxy resin-based composite material prepared by the present invention effectively saves a large amount of fiber resources and has practical application value under the concept of circular economy.

The present invention relates to the field of cable technology, and a high-voltage cable and a preparation method thereof are proposed. The high-voltage cable includes a cable core, a shielding layer, an inner sheath layer, an armor layer, and an outer sheath layer from the inside to the outside. The cable core is formed by twisting a plurality of conductor cores, and the conductor core includes a conductor and an insulating layer. The outer sheath layer includes the following raw materials in parts by weight: 30 to 40 parts of polyethylene, 45 to 55 parts of ethylene-butyl acrylate copolymer, 3 to 6 parts of compatibilizer, 1 to 3 parts of antioxidant, 20 to 30 parts of flame retardant, 15 to 25 parts of filler, 0.5 to 1 part of lubricant, and 0.3 to 0.5 parts of heat stabilizer; the filler is sericite modified with potassium acetate and 3-amino-2-cinnamyl butenoate. Through the above technical scheme, the problem of poor flame retardancy and mechanical properties of high-voltage cables in related technologies is solved.

The invention relates to an energy storage converter system configuration method, which comprises the following steps of: respectively acquiring converter current and converter voltage output by a PCS (Power Control System), grid-side current and grid-side voltage, and an inductance value of a power element in the PCS, and outputting a first voltage instruction and a second voltage instruction; calculating an instantaneous active power value and an instantaneous reactive power value according to the collected grid-side current and grid-side voltage; outputting a voltage amplitude and a power angle according to the network side voltage, the active power reference value, the reactive power reference value, the instantaneous active power value and the instantaneous reactive power value; outputting an SPWM instruction according to the second voltage instruction, the first voltage instruction, the voltage amplitude and the power angle; and S5, controlling the PCS according to the SPWM instruction, and the method has the beneficial effects that by introducing the VSG algorithm module, the problem that the power electronic converter does not have the mechanical inertia and damping characteristics of a traditional synchronous generator and cannot provide inertia and damping for a system is solved.

The present application relates to the technical field of automobile oil pump equipment, and particularly relates to a magnetic drive non-contact rotating inductive oil pump assembly. The present application comprises a pump shell, a one-way valve, a filter element, an oil pump base, a brushless rotor and a brushless shell; the one-way valve is arranged on the bottom surface of the pump shell, the filter element is installed in the pump shell, the oil pump base is in communication with the top surface of the filter element, the bottom end of the brushless rotor is arranged in the oil pump base, the bottom end of the brushless rotor is conical, and the brushless shell is sleeved on the brushless rotor; the present design is provided with a cage-shaped air gap between the brushless rotor and the inner shell, and the rotating magnetic field generated by the energized electromagnetic coil drives the rotor through the air gap, so that the outer wall of the rotor and the inner wall of the inner shell are always not in contact during the rotation process; the power transmission mode of the magnetic field is matched with the air bearing effect or the magnetic field force to maintain centering, and physical contact is completely eliminated, and zero mechanical wear is realized.

The application belongs to the technical field of lighting lamps, and particularly relates to a three-dimensional full-space wireless sliding table lamp with anti-dazzle and eye protection, which comprises a supporting frame, a lifting mechanism, a horizontal adjusting mechanism, a wireless sliding connecting assembly, a balance structure and a bidirectional light-emitting anti-dazzle assembly. A placing seat is fixedly connected to the bottom of the supporting frame, and a first sliding groove is formed in the vertical direction in the middle of the supporting frame. The lifting mechanism comprises an adjusting plate arranged at the end of a fixed cylinder, and a positioning rail is fixedly connected to the outer wall of the adjusting plate. The adjusting plate is clamped on the inner wall of the first sliding groove through the positioning rail. The LED upper lamp plate with a front inclination angle is arranged to effectively supplement the background light of the working environment. The bidirectional light-emitting mode significantly reduces the brightness ratio between the center of the working area and the surrounding environment, reduces the light-dark contrast, relieves the visual fatigue caused by frequent pupil adjustment of the human eye, and prevents myopia from the optical and physical aspects.

The invention relates to a method comprising the following steps; the preparation method comprises the following steps: S1, proportioning raw materials: 99.10 to 99.53 percent by weight of Al, 0.2 to 0.5 percent by weight of Fe, 0.25 to 0.32 percent by weight of Si, 0.01 to 0.05 percent by weight of Cu, 0.008 to 0.012 percent by weight of Zr, 0.005 to 0.008 percent by weight of B, 0.005 to 0.008 percent by weight of RE and 0.001 to 0.003 percent by weight of Ti; wherein RE is selected from at least one of La, Ce, Pr, Ho and Lu; s2, the mixed raw materials obtained in the step S1 are smelted, and alloy liquid is obtained; s3, homogenizing treatment is conducted, specifically, the cast bar is subjected to homogenizing treatment; s4, the homogenized aluminum alloy material is extruded; s5, cooling treatment is conducted on the profile obtained after extrusion forming; and S6, solution treatment is conducted on the aluminum alloy material. The method solves the problem that the mechanical property and the service life of the material are influenced because the traditional homogenizing process and the extrusion process cannot effectively control the grain growth of the aluminum alloy material.

This invention belongs to the technical field of thermoelectric materials and functional polymer materials, specifically relating to a thermoelectric hydrogel based on the synergistic enhancement of zwitterionic and polar solvents, its method, and applications. The thermoelectric hydrogel is obtained by polymerizing a precursor solution to form a gel matrix, followed by immersion in an immersion solution to introduce a potassium ferrocyanide / potassium ferrocyanide redox couple. The precursor solution is prepared by mixing acrylamide, N-isopropylacrylamide, dimethyl sulfoxide, N,N-dimethylformamide, 1-ethyl-3-methylimidazolium tetrafluoroborate, the zwitterionic monomer [2-(methacryloyloxy)ethyl]dimethyl-(3-sulfonic acid propyl)ammonium hydroxide, the crosslinking agent N,N'-methylenebisacrylamide, a photoinitiator, and deionized water. This invention prepares a thermoelectric hydrogel with high mechanical strength, high ductility, and a high Seebeck coefficient, and also exhibits good temperature resistance.

The invention provides an aluminum alloy plate and a preparation method thereof. The aluminum alloy plate comprises the following elements in percentage by mass: 0.90-1.50 wt% of Si element, 0.20-0.50 wt% of Fe element, less than or equal to 0.15 wt% of Cu element, 0.20-0.40 wt% of Mn element, 0.30-0.50 wt% of Mg element, less than or equal to 0.15 wt% of total content of inevitable impurities, less than or equal to 0.05 wt% of single impurity and the balance of Al element, the sum of the content of Mn element and the content of Fe element is 0.40-0.80 wt%, and the balance is Al element. The content ratio of the Mn element to the Fe element is (0.78-1.30): 1. The aluminum alloy plate has high surface quality and mechanical property under the condition of high iron content.

The invention provides a colored cutter coating design method, which belongs to the technical field of cutter coatings, and comprises the following steps: firstly, analyzing the requirements of a cutter substrate and a coating; processing conditions and performance requirements are analyzed, a tool base body material and surface parameters of the tool base body material are determined, and mechanical performance parameters of the hard coating and color space parameters of the color coating are determined; then designing a hard coating; selecting a hard coating material according to the mechanical property parameters of the hard coating; designing a color coating; and selecting a chemical color mechanism or a structural color mechanism according to the color space parameters. When the cutter is prepared, the coated cutter comprises a cutter base body, a hard coating and a color coating, the hard coating is deposited on the cutter base body, and the color coating is deposited on the hard coating. According to the invention, independent optimization and collaborative improvement of wear resistance and color function of the cutter coating are realized, and the problem of performance contradiction of the traditional coating is solved.

The present application relates to the technical fields of industrial fluid control and valve automation, in particular to a stop valve multi-target collaborative control optimization system based on industrial data processing, comprising a multi-dimensional data acquisition step: a multi-dimensional data acquisition center calls real-time operation parameters of the stop valve; a flow resistance characteristic coupling analysis step: a fluid state observation unit calculates the current flow coefficient and the transient pressure difference value based on the parameters; a risk discrimination and decision step: a working condition risk assessment unit quantifies the water hammer and cavitation indexes, obtains a comprehensive risk evaluation value by weighting, and outputs a smooth control or ultra-fast response signal accordingly; a trajectory planning step: a trajectory planning unit respectively generates a nonlinear damping velocity curve or a linear step velocity curve according to the signal type; a flexible execution step: a flexible execution unit drives the stop valve to act, and monitors the closing contact state to realize the switching of the velocity and torque control modes; the present application solves the problem that the traditional control ignores the fluid dynamics risk, and prolongs the service life of the equipment.

The utility model discloses a combined type double-track gantry crane, and relates to the field of large prefabricated part yards in highway engineering, in particular to the combined type double-track gantry crane which comprises a plurality of pressing plates, bolts are embedded in the upper surfaces of the pressing plates, positioning plates are fixedly installed on the pressing plates through the bolts, one side of each positioning plate is fixedly connected with a track, and the other side of each positioning plate is fixedly connected with the corresponding track. Four walking mechanisms A are embedded in the upper surfaces of the two outer side rails, and four walking mechanisms B are embedded in the upper surfaces of the two outer side rails. According to the scheme, double rails and double cranes are adopted, the large gantry crane and the small gantry crane do not influence each other in walking operation, the situation that collision and even derailing occur when the gantry cranes are poor in operation during construction is reduced, meanwhile, multiple procedures such as reinforcing steel bar binding, formwork mounting and dismounting, concrete pouring, beam moving storage and hanging beam transportation can be connected in series, and the use efficiency of the gantry cranes is improved; and the hoisting and transferring time of the template is shortened, and the influence of hoisting cross operation of a conventional gantry crane in a beam yard is fundamentally solved.