30results about How to "Sufficient uniformity" patented technology

Method of manufacturing liquid crystal display element includes disposing adhesive on at least one of first and second substrates; disposing spacer particles on at least one substrate; supplying liquid crystal material onto at least one substrate; and fixing the substrates together with adhesive spacer particles and liquid crystal material therebetween. The substrates are fixed together by applying pressure and/or heat to the substrates from an end portion toward the other end portion thereof. An impulse applied to each spacer particle can be between 0.001 gf.sec and 0.1 gf.sec in substrate fixing step. Parameter X relating to heating in fixing step can satisfy 200<=X<=3000, where X=(T-20)/(V.D), T is temperature (°C), V is fixing speed (mm/sec) of substrates, and D is diameter of spacer particles (mm). The spacer particles can occupy an area ratio of 0.003 or more to unit area of the substrate.

A catalyst layer including: (i) a platinum-containing electrocatalyst; (ii) an oxygen evolution reaction electrocatalyst; (iii) one or more carbonaceous materials selected from the group consisting of graphite, nanofibres, nanotubes, nanographene platelets and low surface area, heat-treated carbon blacks wherein the one or more carbonaceous materials do not support the platinum-containing electrocatalyst; and (iv) a proton-conducting polymer and its use in an electrochemical device are disclosed.

The invention discloses a preparation method for a high-uniformity WSTi62441S titanium alloy ingot. The preparation method comprises the following steps of mixing 6.0 to 7.0 mass percent of Al, 1.0 to 2.5 mass percent of Sn, 3.5 to 4.5 mass percent of Mo, 3.0 to 4.5 mass percent of Zr, 0.20 to 0.25 mass percent of Si, 0.4 to 1.5 mass percent of W and the balance of Ti based on the total amount of 100 percent, performing electrode pressing and welding on the mixture to obtain a consumable electrode, and performing vacuum smelting on the consumable electrode for many times to obtain the high-uniformity WSTi62441S titanium alloy ingot. According to the preparation method, the problems of composition segregation, poor controllability in the content of impurities and an interstitial element and poor batch stability of the conventional preparation method are solved, the prepared WSTi62441S titanium alloy ingot is uniform in element composition and high in batch stability, and the preparation method is applied to the industrial production of WSTi62441S titanium alloy ingots in specifications of Phi560 to Phi720mm.

The invention discloses a method for preparing a tetrodotoxin positive quality control sample. The method comprises the steps of selecting muscular tissues from fresh fugu rubripes, homogenizing, and measuring the content of tetrodotoxin in the muscular tissues to verify whether the muscular tissues contain the tetrodotoxin; if the muscular tissue is a positive sample, diluting the positive sample containing toxin with a negative sample and a dispersant, mixing uniformly, continuously measuring the content of the toxin in the sample, packaging the sample after the sample meets requirements, preserving at an appropriate temperature, and performing uniformity verification and stability analysis on the sample; if the muscular tissue is a negative sample, adding a tetrodotoxin standard solution into the negative samples, adding a dispersant, mixing uniformly, measuring the content of the tetrodotoxin in the sample, packaging the sample after the sample meets requirements, preserving at an appropriate temperature, and performing uniformity verification and stability analysis on the sample. The quality control sample is simple to operate, and has enough stability and uniformity and long preservation time, so that the quality control sample can be used for laboratory quality control.

The invention provides a lime slaking steam treatment device. According to the device, steam in a slaking tank can be smoothly discharged, so that the steam does not enter a lime discharging device, smooth discharging of the lime discharging device is ensured, the discharged steam is purified and discharged into an ambient environment, and environment friendliness is ensured. The lime slaking steam treatment device comprises a quick lime slaking tank, wherein a stirrer is arranged in the quick lime slaking tank; a feeding pipe, a water inlet pipe and a steam exhaust smoke pipe are respectively arranged on the quick lime slaking tank; and an outlet is formed in the bottom of the quick lime slaking tank and is communicated with a lime slurry storage tank. The lime slaking steam treatment device is characterized in that a lime guide tube structure which is closed up from top to bottom is formed in the middle of an inner cavity of the feeding pipe; an air supply hole is formed in an outer wall of the feeding pipe corresponding to the lime guide tube structure; an external air supply pipe is communicated with the air supply hole; the lime slaking steam treatment device further comprises a smoke washing tank which is of a closed structure; and the steam exhaust smoke pipe is communicated with the bottom of the smoke washing tank by virtue of an air delivery pipeline.

The invention relates to a standard steel wire and a manufacturing method thereof. The standard steel wire has enough uniformity and rod smoothness; different force values can be obtained through manufacturing steel wires of different diameters, namely one or more measuring value(s) can be used as a standard value(s); a simple and reliable standard sample is provided for daily inspection, stability tracking study, MSA (measurement systems analysis) and cross-over test among test rooms; the accuracy of tensile test data can be systematically ensured, so that the wrong action caused by inaccurate test data is avoided.

A small, low-enriched, passively safe, low-power nuclear reactor comprises a core of target and fuel pins that can be processed to produce the medical isotope ⁹⁹Mo and other fission product isotopes. The fuel for the reactor and the targets for the ⁹⁹Mo production are the same. The fuel can be low enriched uranium oxide, enriched to less than 20% ²³⁵U. The reactor power level can be 1 to 2 MW. The reactor is passively safe and maintains negative reactivity coefficients. The total radionuclide inventory in the reactor core is minimized since the fuel/target pins are removed and processed after 7 to 21 days.

The invention discloses a plasma display panel (PDP) terminal hot-pressing head structure, which relates to the PDP terminal hot-pressing head structure realizing hot-pressing pressure and temperature control by distributing a plurality of pressing heads. The PDP terminal hot-pressing head structure provided by the invention aims to overcome the shortcomings of the prior art, and can effectively solve the problem of pressing head pressure and heating distribution and improve pressing head regulation processibility and pressing head maintenance operability. To fulfill the aims, the technical scheme adopted by the invention is that: the PDP terminal hot-pressing head structure comprises a base and the pressing heads; a bottom plate is detachably connected to the base by a connecting device;the PDP terminal hot-pressing head structure further comprises the plurality of pressing heads; the rear ends of each pressing head are connected with a pressure device; and the pressure devices control the actions of the pressing heads, can output constant pressure according to a set value, and are fixed on the bottom plate. The PDP terminal hot-pressing head structure is applied to tape carrierpackage (TCP) hot-pressing.

The invention discloses a high-strength Al-Zn-Mg-Cu aluminum alloy and a preparation method thereof, and relate to the field of aluminum alloy. The aluminum alloy comprises, by weight, less than or equal to 0.5% of Si, less than or equal to 0.5% of Fe, 5.0%-7.0% of Zn, 2.0%-3.0% of Cu, 1.5%-3.0% of Mg, 0.15%-0.35% of Sc, 0.1%-0.2% of Zr, 0.1%-0.3% of Y, and the balance aluminum and non-impurities.The preparation method comprises the following steps of smelting, die, refining and impurity removal and gas removal, pouring, homogenizing heat treatment, three-dimensional large deformation forgingpre-deformation, isothermal deformation processing and heat treatment. A casting mold adopts a metal mold as an inner mold, the casting mold is surrounded by a cooling pipe, a sand mold is used as aspecial combination mold of an outer mold, and a high-quality and high-performance casting is obtained; and the heat treatment comprisessolution treatment+gradient aging treatment. According to the prepared Al-Zn-Mg-Cu aluminum alloy, the strength reaches 650 MPa, the elongation is 10%-13%, the elongation is improved while the strength is improved, and the service life is prolonged; and the Al-Zn-Mg-Cu aluminum alloy has important value in the field of high-strength aluminum alloy.

There is provided a plasma-enhanced chemical vapor deposition apparatus including a reaction chamber into which a process gas is introduced and from which an exhausted gas is discharged, a susceptor having a first region on which a semiconductor substrate is to be placed and a second region other than the first region, and an electrode located in facing relation with the susceptor and cooperating with the susceptor to generate plasma therebetween for forming a thin film on the semiconductor substrate placed on the first region of the susceptor, characterized by a ceramics insulator located between the second region of the susceptor and the plasma.

The invention discloses an anticorrosion processing method used for surface of a metal member, which is used for anticorrosion processing of surface of a photovoltaic flat rack. The anticorrosion processing method comprises the steps of cleaning, drying, galvanizing and cooling in order, and the cleaning step comprises the steps of degreasing, examining, pickling and washing in order, the drying and galvanizing steps also comprise an assistant leaching step, the assistant leaching step is characterized in that the photovoltaic flat rack is immersed into a plating auxiliary for 5-8 minutes, the temperature of the plating auxiliary is between 50-57 DEG C, the plating auxiliary contains zinc chloride and ammonium chloride, the mass ratio of zinc chloride to ammonium chloride is between 1 and 4 to 1 and 10, and the plating auxiliary also contains glycerin. According to the invention, the technology route is simple, and the method is benefit for obtaining smoother galvanizing layer surface layer and more uniform galvanizing layer composition.

The invention discloses a preparation method of a low-density Nb-Ti-Al-V-Zr-C niobium alloy bar. The method comprises the following steps: 1, carrying out primary extrusion on a low-density Nb-Ti-Al-V-Zr-C niobium alloy ingot to obtain a primary extruded bar; 2, performing secondary extrusion to obtain a secondary extrusion rod; 3, quenching treatment; 4, free forging processing; and fifthly, vacuum annealing is conducted, and the low-density Nb-Ti-Al-V-Zr-C niobium alloy bar is obtained. According to the method, the low-density niobium alloy bar is prepared through the technology of two-time extrusion, quenching and forging, the quenching treatment technology and the secondary extrusion technology are added, the carbide reinforced phase TiC is separated out and nucleated again after redissolution and is dispersed and distributed in a matrix, the size of the carbide reinforced phase is effectively reduced, and the dispersity of the carbide reinforced phase is improved; the elongation after fracture of the low-density niobium alloy bar is improved, so that the low-density niobium alloy bar shows room-temperature high-strength and high-plasticity mechanical properties.

The invention discloses a galvanizing technology good for uniformity of galvanizing layer thickness, which is used for anticorrosion processing on the surface of a photovoltaic flat rack. The technology comprises the steps of cleaning, drying, galvanizing and cooling in order, and the cleaning comprise comprises the steps of degreasing, examining, pickling and washing in order, the degreasing step employs a water-based metal degreasing agent for removing oil on the surface of the photovoltaic flat rack, the pickling step is characterized in that when the temperature scope is between 30-35 DEG C, a pickle containing hydrogen chloride, hexamethylene tetramine and corrosion inhibitor are employed for washing the photovoltaic flat rack; the corrosion inhibitor contains a nitrogen compound-containing corrosion inhibitor and a sulfur compound-containing corrosion inhibitor; the galvanizing step is characterized in that zinc liquid is heated to 455-480 DEG C, the photovoltaic flat rack is placed in the zinc liquid for keeping for 1-1.5 minutes and then is taken out, and the zinc liquid contains aluminium. The galvanizing technology has simple process, and a galvanizing layer with better combination quality, thickness quality and uniformity quality can be conveniently obtained.

A water-based liquid cosmetic containing diethylhexyl sodium sulfosuccinate, an inorganic coloring pigment, a water-soluble dispersant, and a film-forming polymer emulsion, wherein a content of diethylhexyl sodium sulfosuccinate is 0.01 to 1 mass % and a content of the inorganic coloring pigment is 3 to 20 mass %, based on a total amount of the cosmetic, and wherein the inorganic coloring pigmentcontains carbon black.

The invention discloses a preparation method of a separation membrane composite support body, which comprises the following steps: 1. feeding hollow polyoxadiazole fibers and high-crystallinity polyester fibers according to a certain ratio at one time, defibering to prepare slurry, purifying, removing impurities, and dispersing to obtain slurry; 2, sequentially papermaking, squeezing and drying onthe pulp, and obtaining paper sheets; and 3, carrying out hot rolling on the paper sheet, and finishing by a calender to obtain the separation membrane composite support body. The preparation methodhas the beneficial effects that the preparation method is simple, the two raw materials are low in cost and easy to obtain, the two raw materials have high heat resistance and melting point, the high-crystallinity polyester fiber can be bonded and melted at high temperature to form a unique hole structure, and meanwhile, enough homogeneity can be kept; and the hollow polyoxadiazole fiber is used as a skeleton to provide enough mechanical strength, and the separation membrane composite support body has excellent uniformity, mechanical strength, heat resistance and air permeability.

The invention discloses a chemical production reaction kettle, which comprises a casing, wherein foot margins are fixedly arranged at the two sides of the bottom end of the casing; a first motor is arranged in the center of the top of the casing; a feeding pipe and an air compression valve are respectively arranged at the top of the casing and positioned at the left side and the right side of the first motor; the bottom of the feeding pipe penetrates through the casing and extends into the casing; the top of the feeding pipe is connected with a feeding opening; a valve is arranged on the air compression valve; the bottom of the first motor is connected with a fixed shaft arranged inside the casing; the bottom of the fixed shaft is connected with a first rotating shaft arranged under the fixed shaft through the shaft coupler; a reaction cylinder is arranged in the center position inside the casing; the first rotating shaft penetrates through the reaction cylinder to extend into the reaction cylinder; a rotor arranged inside the reaction cylinder is fixedly arranged on the bottom of the first rotating shaft; a second motor is connected with the center of the bottom of the casing. The chemical production reaction kettle has the beneficial effects that the structure is simple; the operation is convenient; the reaction is sufficient; after the reaction, the media diameter is smaller; the effect is good; the work efficiency is high.

The invention provides a formula and preparation method of Gui powder for freshwater fish culture, and relates to the technical field of freshwater fish culture. The formula of the Gui powder for freshwater fish culture comprises magnesium, calcium, potassium, phosphorus, sulfur, carbon, zinc, sodium, folic acid, nicotinamide, calcium pantothenate, biotin, vitamin D3, vitamin E, vitamin K3, vitamin B1, vitamin B2, vitamin B6, vitamin B12, vitamin C and vitamin A. According to the invention, by selecting the phosphorus component raw material, the stability of the properties of the selected phosphorus in the processing and using processes is ensured, radioactive elements are not generated, the safety of the raw material of the Gui powder is further ensured, and 10% of water is retained in the finished product of the Gui powder, so that the finished product of the Gui powder has better water melting performance, the Gui powder can uniformly act on the culture water area of freshwater fish, and in terms of the quality of the finished product, the dosage of the finished product of the Gui powder is small, the proportion is reasonable, and the function is relatively good.