13results about How to "Guarantee uniformity" patented technology

The present application relates to the technical field of metal material heat treatment, in particular to a heat treatment furnace device and method capable of controlling temperature and cooling speed, wherein the furnace body is internally constituted as a hearth, the output end of the air supply system is located at the lower region of the hearth through the furnace body; the flow equalizing system is arranged at the lower region of the hearth and is in communication with the output end of the air supply system; the workpiece is placed on the flow equalizing system; the circulation and exhaust system is arranged at the upper region of the hearth and is in communication with the interior of the hearth, the temperature monitoring system is arranged on the circulation and exhaust system and is directly above the workpiece; the control system is electrically connected with the air supply system, the circulation and exhaust system and the temperature monitoring system. The present application effectively solves the problems of insufficient cooling speed and poor cooling uniformity in the prior art.

This invention relates to the field of lithium battery technology, and in particular to a method for preparing a lithium-ion battery cell. The invention discloses a method for preparing a lithium-ion battery cell, comprising: first, preparing a positive electrode slurry containing modified titanium aluminum carbide, graphene oxide, etc., and a negative electrode slurry containing aminated carbon nanotubes, zinc aluminum spinel, etc., both processed according to specific proportions and processes; second, coating the positive and negative electrode slurries separately onto a current collector, and obtaining positive and negative electrode sheets through drying, coating with a coating agent, etc.; next, preparing a composite separator coated with a separator coating agent and curing it; finally, winding the separator in a positive-separator-negative-separator sequence, and obtaining a lithium-ion battery cell through drying, encapsulation, electrolyte injection, formation, etc.

The application discloses a nitrogen-oxygen composite rare earth ceramic riser base and a preparation process thereof, and relates to the technical field of coke oven riser. The riser base comprises a base and a riser cylinder, the riser cylinder is fixedly arranged on the upper portion of the base, and the riser cylinder and the base are both circular in cross section and concentrically arranged. The base comprises the following components in parts by weight: 40-50 parts by weight of silicon carbide powder, 12-13 parts by weight of industrial silicon powder, 8-10 parts by weight of silicon micro powder, 2-3 parts by weight of additives and 33-36 parts by weight of a binding agent. A decoking assembly for cleaning graphite and tar attached to the inner wall of the base is arranged in the base. The preparation process comprises the following steps: S1, mixing; S2, forming; S3, sintering; and S4, installation. The application selects high-purity silicon carbide as the main raw material, guarantees excellent thermal shock stability of the product, adds rare earth oxides to improve the toughness of the riser base material, and further improves the wear resistance and oxidation resistance of the riser base.

This invention relates to the field of electronic materials technology, specifically disclosing a copper-based varistor chip electronic paste and its preparation method. The paste is composed of a specific ratio of sheet-like and nano-copper powder, a glass binder phase, an organic carrier, and functional additives. The preparation method employs a multi-stage vacuum dynamic degassing device. This device gently releases large bubbles through a pretreatment chamber, and utilizes a dynamic stirring mechanism with combined revolution, rotation, and reciprocating motions within the main degassing chamber to achieve strong shearing and agitation of the paste across its entire surface. Combined with ultrasonic cavitation, this deeply breaks down bubbles, thereby efficiently and thoroughly removing them. Simultaneously, the device integrates an online viscosity monitoring and intelligent solvent vapor compensation system, enabling real-time adjustment and stabilization of the paste's rheological properties. This invention effectively solves the problems of incomplete bubble removal and performance fluctuations caused by solvent evaporation, significantly improving the density, uniformity, and production consistency of the paste product.

This application discloses a spin-coating carbon composition, a semiconductor fabrication method, and a semiconductor device. The spin-coating carbon composition comprises a cyclic phenolic resin. The cyclic phenolic resin used in this invention has the characteristics of small molecular weight, narrow molecular weight distribution, and active crosslinking groups distributed on the resin periphery. The spin-coating carbon composition based on the cyclic phenolic resin of this invention, while maintaining excellent coating performance, can significantly improve the thermal stability, etching resistance, and pattern fidelity of the thin film, providing a new generation of hard mask materials for advanced semiconductor manufacturing.

This invention relates to the field of polymer material synthesis technology, specifically disclosing a water-dispersible cationic polyacrylamide material and its preparation method. The material is composed of the following raw materials in parts by weight: 45-50 parts modified acrylamide, 15-20 parts cationic monomer, 5-10 parts N-vinylpyrrolidone, 0.8-1.2 parts surfactant, 90-100 parts deionized water, 0.1-0.5 parts crosslinking agent, 3-8 parts hyperbranched polyester Boltorn (H₂O), 0.08-0.12 parts ammonium persulfate, 0.03-0.05 parts sodium bisulfite, and 0.5-0.8 parts aluminum citrate. The preparation process of this invention is simple and highly operable. The provided polyacrylamide material has a high specific surface area, excellent water dispersibility, good stability, and salt resistance, making it suitable for various industrial applications such as water treatment and papermaking, exhibiting good flocculation performance and reinforcing effects.

This invention discloses a single-unit cascaded three-dimensional recirculating aquaculture system and method for giant freshwater prawns, comprising several vertically stacked three-dimensional aquaculture units and a recirculating water treatment unit. The three-dimensional aquaculture unit is constructed by directly stacking several boxes from bottom to top using an edge-supported method. Each box has a small feeding door on its front side wall. The boxes are divided into type A and type B. The top of the uppermost box is connected to an inlet pipe, and the bottom is a water collection unit connected to a return pipe and the recirculating water treatment unit to form a closed-loop circulation. This invention uses a support-free stacking method, significantly saving space and cost. The innovative diagonal cascaded staggered hydrodynamic design forces thorough mixing of water flow, eliminating short-circuiting problems. Individual isolation aquaculture completely solves the cannibalism problem among giant freshwater prawns, achieving a 100% survival rate and significantly improving the efficiency of factory-style aquaculture.

The invention discloses a liquid biopsy device for breast cancer drug-resistant pathway detection, belongs to the technical field of liquid biopsy sampling, and provides the following scheme that the liquid biopsy device comprises a tool mechanism, a biopsy storage mechanism is arranged above the tool mechanism, and the biopsy storage mechanism comprises an external cold storage cavity and a circular flow assembly; a refrigeration assembly is arranged on the external cold storage cavity, a mounting frame is fixedly connected to the interior of the external cold storage cavity, and a plurality of tooth sections are arranged on the upper portion and the lower portion of the mounting frame in a staggered mode; test tube samples are stored in the limiting assembly, then the test tube samples are driven by the circulating flow assembly to be transferred to the sealed inner cavities, and as the external cold storage cavity is divided into a plurality of inner cavities by the sealing partition plates, when one sample is taken and put down, only the corresponding independent inner cavity is opened, and the other inner cavities are kept in a sealed state, so that the consumption of cold air is greatly reduced; the circular flow assembly controls circular flow of test tube samples, so that all the samples are always in a stable low-temperature environment, and the sample activity is effectively guaranteed.

The invention belongs to the technical field of traditional Chinese medicine analysis, and particularly relates to a construction method and application of a specific chromatogram of an achyranthes aspera throat-clearing mixture. According to the invention, the spanning from single index control to overall quality evaluation is realized; the specific characteristic spectrum method for the achyranthes aspera throat-clearing mixture is established for the first time, and the limitation that only the content of a single component is measured in the prior art is broken through. By simultaneously monitoring the five key characteristic peaks of chlorogenic acid, caffeic acid, bergenin, geniposide and catechin and the consistency of the overall spectrum of the five key characteristic peaks, the basic material feeding condition and the matching stability of the monarch, minister, assistant and guide medicines in the preparation can be comprehensively reflected, so that the overall quality and the uniformity of the curative effect of the product are more scientifically guaranteed.

The invention relates to the technical field of nanometer materials, in particular to a synthesis method of gold nanoclusters and application of the gold nanoclusters in food pigment detection.The gold nanoclusters are prepared with natural plant protein ginger protease containing sulfydryl and reducing amino acid as an exclusive template through the following steps that an enzyme solution and a chloroauric acid solution are prepared and mixed and stirred in proportion to form colloid; and adding NaOH to adjust the pH so as to unfold the protein structure, carrying out microwave treatment after constant volume and uniform mixing, cooling, and storing in a dark place. The ginger protease is innovatively selected as a template, microwave synthesis is adapted, the synthesis period is shortened, and the product performance is improved; the detection system is high in specificity, good in interference resistance, mild in reaction condition, simple and convenient to operate, suitable for rapid detection of target pigments in various foods, and high in application value.

The utility model provides a kind of electrospinning equipment for large-scale mass production nanofiber, including liquid supply system, spinning system, collection system, environmental control system and central control system;Liquid supply system includes liquid storage tank and the film-forming liquid supply motor connected therewith;Spinning system includes nozzle part, nozzle conveying motor, nozzle combination left and right transfer sliding rail and nozzle combination movement carrier plate, realize the reciprocating motion of nozzle part in horizontal direction;Collection system includes high-speed rotating hollow metal film-forming drum, film-forming drum drive motor and the pulse type electrostatic eliminator arranged in the side of film-forming drum;Environmental control system includes machine cover, heating sheet, dehumidifier and temperature and humidity sensor.By multi-jet array design, single-point spinning mode is changed into planar array output, realize the growth of production capacity from linear to geometric progression, unit time yield far exceeds traditional single needle and simple amplification multi-needle equipment, meet the demand of large-scale mass production.

The invention discloses an automatic raw material feeding batching device for brickmaking, and belongs to the technical field of brickmaking processing. Hoppers rotate to a lower raw material storage area for digging, the hoppers full of raw materials can rotate upwards for conveying and fall into a material guiding assembly to complete quantitative discharging, and subsequent empty hoppers continue to move downwards along with a rotating chain; material digging, rotary conveying and discharging actions are sequentially and circularly completed, continuous and quantitative feeding of raw materials is achieved, a material guiding box receives falling raw materials, a connecting rod drives a spiral blade to rotate, the raw materials in the material guiding box are conveyed towards a bottom discharging opening through spiral thrust, and the spiral blade forms shearing and stirring acting force on the raw materials in the rotating process; according to the invention, cakes formed by damping and extrusion in the raw materials are thoroughly scattered, so that the raw materials are in a loose and uniform state, a traditional volumetric batching mode is abandoned, and the situation that the concentration of local raw materials is too high or too low and the preset proportion is damaged is prevented through quantitative feeding and scattering modes, so that the raw material proportioning precision is improved.

The invention provides a production process of a water-soluble fertilizer with an anti-freezing function, and relates to the field of fertilizer preparation, and the production process comprises the following steps: a, mixing main raw materials except water of the water-soluble fertilizer with the anti-freezing function with part of water to form a mixed solution 1; b, respectively adding water to dissolve a surfactant and an anti-freezing synergistic auxiliary agent to form a surfactant solution and an anti-freezing synergistic auxiliary agent solution; c, mixing the surfactant solution and the anti-freezing synergistic additive solution, adding an anti-freezing agent, homogenizing and emulsifying uniformly to form a mixed solution 2, and cooling; and d, mixing the mixed solution 1 and the mixed solution 2, and cooling to obtain the water-soluble fertilizer with the anti-freezing function. In the step d, a liquid inlet pipe of the mixed liquid 1 and a liquid inlet pipe of the mixed liquid 2 converge to a mixing inlet shell, and then are input into a stirring device for stirring and mixing through the mixing inlet shell; the preliminary uniform mixing of the raw materials is realized in the premixing stage, and only short-time fine mixing is required after the raw materials enter the stirring device, so that the stirring time is shortened, and uniform mixing is ensured.