53results about How to "Address manufacturing costs" patented technology

The invention provides a lithium battery hard carbon microsphere cathode material with core-shell structure and a preparation method thereof. The lithium battery hard carbon microsphere cathode material with core-shell structure is formed by starch and a graphitized layer as coating. The surface of the material is subjected to catalytic graphitization treatment to form the graphitized layer, and the inside of the material maintains the hard carbon structure. The product is made by preparing a starch-based hard carbon microsphere and performing catalytic graphitization treatment. Owing to the highly-graphitized coating layer, the first charge/discharge efficiency of the prepared carbon microsphere with core-shell structure is higher than the conventional hard carbon-based materials; and owing to the hard carbon inner structure, the capacity is higher and the magnification property is excellent.

The invention discloses a method for hard carbon negative electrode materials of a lithium ion battery and belongs to the technical field of hard carbon negative electrode materials of the lithium ion battery. By means of the method, one or several kinds with any proportion of sulfuric acid, sulfate, boric acid, borate, phosphoric acid, phosphate, muriatic acid, muriate and ammonia or ammonium salt is/are chosen as a catalyst/catalysts for preparing the hard carbon negative electrode materials of the lithium ion battery in a catalysis method, and compared with the catalysts used in the prior art, the catalysts used in the preparing process of the materials are reduced in low-temperature section stabilized heat treatment temperature, the time is shortened by nearly 10 times, a large number of resources are saved, production cost is reduced, and capacity is improved.

The invention belongs to the technical field of silicon dioxide, and particularly relates to a preparation method of silicon dioxide for low-specific-surface-area high-density thickening type toothpaste. The silicon dioxide for the low-specific-surface-area high-density thickening type toothpaste is prepared by the following steps: taking a sodium sulfate solution with the mass concentration of 10-12% as a mother solution, dripping a sodium silicate solution with the molar concentration of 1.25-1.5 mol/L and a sulfuric acid solution with the molar concentration of 6-7mol/L at the same time, and carrying out a reaction at a segmented temperature and a segmented pH value. When the silicon dioxide for the thickening type toothpaste prepared by the preparation method provided by the inventionis applied to the preparation process of the toothpaste, the time can be shortened, the dust can be reduced, the cost can be saved in the transportation process, and the cleaning effect of the toothpaste cannot be reduced when the silicon dioxide is compounded with the friction type silicon dioxide in the toothpaste body.

The invention provides a harmonic mixer with low local oscillator power in an embodiment. The harmonic mixer comprises a mixer diode DC bias circuit and a low-loss local oscillator intermediate-frequency duplexer, wherein the mixer diode DC bias circuit comprises a diode pair (2) composed of two diode junctions, two structurally symmetrical low-loss thin-film capacitors (6), a DC decoupling filter circuit composed of two decoupling capacitors (3), two plate capacitors (4) and two high-capacitance broadband capacitors (5) of a symmetrical structure, and a DC resistance bias network (11); the low-loss local oscillator intermediate-frequency duplexer comprises a local oscillator matching filter (10), a local oscillator input waveguide (8) to a suspended stripline waveguide probe transition circuit (9) and an intermediate-frequency low-pass filter (7), all of which are orderly connected with each other. The harmonic mixer with low local oscillator power is capable of realizing low variable-frequency loss and noise coefficient properties under the condition of low local oscillator power; as a result, the problems of technical indices of the existing solutions and the manufacturing difficult and the cost of a local oscillator frequency doubling chain are solved.

The invention provides a soft-packed battery heat control device, particularly relates to the soft-packed battery heat control device capable of being soaked in cooling water and provides a corresponding package material in allusion to the defect of low corrosion resistance of the battery package material in the prior art. The package material is formed by an aluminum foil layer with resistance to corrosion of cooling water and a plastic layer on the surface of the aluminum foil layer.

The invention discloses a buckling structure of a mobile terminal. The buckling structure comprises a display screen assembly, a middle frame, and a rear case for carrying the middle frame. The middle frame is used for carrying and fixing the display panel assembly; a buckle is arranged at the side of a contact surface, in contact with the rear case, of the middle frame; and a buckle groove is formed in the inner side of the rear case side wall. The buckle and the buckle groove correspond to each other. A bolt bar is arranged in the buckle groove; and a protruding wing is arranged at the bolt bar. The middle frame and the rear case are fixedly connected based on buckling of the buckle and the protruding wing. In addition, the invention also provides an assembling method of the mounting structure and a mobile terminal including the mounting structure or using the assembling method to assemble the mounting structure. Therefore, technical problems of complicated manufacturing process and low cost of the buckling structure of the mobile terminal in the prior art can be solved.

The invention provides a high-stability hemodialysis membrane. The high-stability hemodialysis membrane is a hemodialysis membrane prepared by preparing a membrane casting solution through only takinga polysulfone-based amphiphilic block copolymer as a membrane forming material and by carrying out a phase inversion process; and the molecular weight of the polysulfone-based amphiphilic block copolymer is 20-240 kDa, wherein a mass ratio of a polysulfone block to a hydrophilic block is 2.4-8.2. The invention also provides a preparation method of the high-stability hemodialysis membrane. The preparation method comprises the following steps: preparing the membrane casting solution from the polysulfone-based amphiphilic block copolymer, and carrying out the solution phase inversion process toprepare a membrane that is the high-stability hemodialysis membrane. The hemodialysis membrane has a good permeability to small and medium molecular toxins, also can completely eradicate dissolution,and has permanent hydrophilicity. The preparation method has a simple process, does not need to use any additive, and fundamentally solves the problem of appearance of dissolved matters in the use process of the hemodialysis membrane.

The present invention discloses a touch detection method and apparatus for a touch screen and the touch screen. The apparatus comprises a display panel, a sensing circuit and a control circuit, wherein the sensing circuit comprises at least two sensing loops. The method comprises: performing charging and discharging potential detection on each sensing loop in the sensing circuit at a preset frequency, and acquiring potential values of both ends of each sensing loop; comparing a variation value, when each potential value changes, with a preset threshold, and determining whether an object touches the touch screen; and when the variation value of each potential value exceeds the preset threshold, carrying out calculation to obtain a sensing capacitance value of a sensing capacitance formed between the object and the touch screen when the object touches the touch screen, and a resistance value between the contact point and the sending port in the sensing circuit. According to the touch detection method and apparatus for the touch screen and the touch screen provided by the present invention, the technical problem in the prior art of high manufacturing cost and manufacturing difficulty caused by a large number of sensing loops, sending ports and receiving ports on the touch screen is solved.

The invention discloses a carboxylated banyan aerial root fiber adsorbent and preparation method and application thereof. The preparation method of the carboxylated banyan aerial root fiber adsorbentcomprises the steps that a banyan aerial root is subjected to washing, drying, pulverizing, and sieving to obtain pretreated fibers; the pretreated fibers are added to a citric acid solution for mixing, heating, filtering, washing, and drying to obtain the carboxylated banyan aerial root fiber adsorbent. According to the preparation method, the adopted raw material of banyan tree roots is cheap, easy-to-obtain, and environment-friendly, high temperature conditions are not required during the preparation, safety is high, meanwhile the material is not carbonized, and the yield rate is also relatively high. When the adsorbent is used for adsorbing ciprofloxacin in water, the advantages of being environment-friendly, simple in operation, low in cost, high in adsorption efficiency and the likeare achieved. The adsorbent contains a large number of carboxyl surface functional groups, and can enhance the effective binding with ciprofloxacin molecules and generate strong electrostatic interaction, the emerging pollutant ciprofloxacin in a water body can be effectively adsorbed and removed, and the adsorbent is further suitable for removal of other pollutants in the water.

The invention discloses a preparation method and the application of a Fe4I3O24H15 visible-light-induced photocatalyst. The preparation method comprises the steps of dissolving a certain amount of Fe (NO3)3. 9H2O into deionized water, and then feeding a certain amount of concentrated nitric acid into the deionized water to obtain acidic ferric nitrate solution; dissolving a certain amount of NaIO4 into the deionized water to obtain sodium metaperiodate solution; heating the obtained ferric nitrate solution and sodium metaperiodate solution up to 80 DEG C, and mixing the two solutions in a stirring state to obtain earthy yellow precipitate; separating out the precipitate, and drying for 5 hours at the temperature of 60 DEG C to obtain the Fe4I3O24H15 sample. The Fe4I3O24H15 visible-light-induced photocatalyst prepared by the method is capable of degrading rhodamine B dye under the visible light, and the activity of the Fe4I3O24H15 visible-light-induced photocatalyst is superior to those of commercial titanium dioxide P25 and high-activity AgI photocatalyst. The Fe4I3O24H15 compound is high in visible-light catalytic activity, simple and convenient in preparation process, low in cost, good in durability, non-toxic and beneficial to large-scale popularization and application.

The invention discloses a rendering synthesis method for converting a three-dimensional model into a two-dimensional ink animation. The method comprises the following steps: presetting a figure line;firstly, knowing line distribution of a model, classifying that lines of the same type, such as clothing lines, include jackets, underwear, shawl and lower hems, are used for clothing, and except forsome places where the map lines are drawn by ps, presetting of the lines needs to be loaded basically; classifying the models of all clothes into Toons of the same type, and paying attention to two sets of clothes: Thick and Dry lines. According to the rendering synthesis method for converting the three-dimensional model into the two-dimensional ink animation, software such as Maya, 3dsMax and AfterEffect is used, and the effect of simulating the two-dimensional ink animation through three-dimensional rendering is achieved through operation of modifying material nodes and computing languages.

The invention provides a photographic fixing device which includes a heating element and a roller, the heating element is arranged for emitting heat energy, and the roller comprises a hollow tube body and an air turbulence structure. The hollow tube body is annularly arranged on the outer side of the heating element, and at least partially coats the heating element, an annular region is defined between the hollow tube body and the heating element, and the air turbulence structure is formed on the inner wall of the hollow tube body, and is arranged for disturbing air to convect in the annular region during rotation of the hollow tube body to promote heat transfer efficiency of heat transfer to the hollow tube body, so that the effects of improvement of the heat transfer efficiency and homogeneous temperature distribution of the roller surface can be achieved so as to effectively reduce the power wattage and energy consumption of the heating element.

The invention provides a growth method of an AlGaN material. The method comprises the following steps: introducing nitrogen into a reaction chamber containing an AlGa solution; the nitrogen is ionized, so that part of nitrogen ions obtained through ionization is dissolved in the AlGa solution; the AlGaN material is obtained from an AlGa solution in which nitrogen ions are dissolved by adopting a crystal pulling method. Compared with an AlxGa1-xN material prepared through MOCVD, MBE and other methods in the prior art, nitrogen ions generated through nitrogen ionization reaction are dissolved in the AlGa solution to generate the AlGaN material, the method is simple in required condition, low in preparation cost and low in required reaction temperature, the preparation speed of the single AlGaN material is high, the yield is high, and the method is suitable for industrial production. The problems of high preparation cost and low preparation speed of the AlGaN material in the prior art are well solved, and industrial large-scale production and preparation are facilitated.

The invention discloses a dust box structure applied to a floor mopping robot and capable of preventing garbage from falling. The dust box structure comprises a sweeper dust box lower cover and a dust baffle, wherein a dust box garbage inlet is formed in one side wall of the sweeper dust box lower cover, the dust baffle is connected with a first rotating rod, and the dust baffle is used for closing or opening the dust box garbage inlet as the dust baffle is rotationally connected with the inner wall of the sweeper dust box lower cover through the first rotating rod. According to the above scheme, a dust baffle structure is additionally arranged on the basis of the open type dust box garbage inlet, so when the dust box is pulled out of a sweeper, dust cannot fall on the ground, and secondary pollution is avoided; the design of the dust baffle at the dust box opening simplifies an independent protection door structure, and the problem that garbage falls off from an open type dust box opening is solved, the garbage containing capacity of a dust box is increased, and use by a user is more reliable; and the dust baffle is very simple in structure, so problem in manufacturing cost of an independent protection door is solved, and the use experience of the user is better.

The invention discloses a composite bow integrated double-main-string static force symmetrical balance hanging string pulley block system, and relates to the technical field of composite bow design, production and manufacturing and debugging detection. The composite bow integrated double-main-string static force symmetrical balance hanging string pulley block system comprises an overall assembly, wherein the overall assembly comprises a first pulley block and a second pulley block, and placing grooves are formed in the surfaces of the outer walls of the first pulley block and the second pulley block. According to the composite bow integrated double-main-string static force symmetrical balance hanging string pulley block system, hanging points of the first pulley block and the second pulley block are newly designed, so that only one integrated bowstring is used for being converted into two integrated bowstrings which are symmetrical left and right in a penetrating mode, so that distinguishing is not needed during production, manufacturing and assembling, and the cost is reduced; and one integrated bowstring is used, the structural layout of the two integrated bowstrings is achieved, the limitation of the left-right and deflection freedom degrees of the integrated bowstring is achieved, and the same tensioning degree of the two integrated bowstrings can be achieved without using an additional floating balance block, so that the problems of shooting precision caused by the freedom degree of the integrated bowstring, the number of the integrated bowstring, the manufacturing cost of the floating balance block and the assembling and debugging difficulty are solved.