7results about How to "Smooth preparation process" patented technology

This invention provides an open-type internal extrusion forming die and a forming process for large-size blind hole shells, including a die cavity, a forming punch, and an extrusion punch. A laterally movable inner die is provided on the die cavity, and an ejector rod is provided on the inner die. The die cavity and the inner die cavity together form a workpiece cavity with a variable shape. The inner die has a vertically arranged first chamber and a second chamber, both of which can connect with the die cavity. The process steps include: pulling the pressure block upwards so that the distance between the two clamping plates is greater than the outer diameter of the blank; feeding the blank from the top of the die cavity; controlling the forming punch to move downwards until the blank fills the workpiece cavity under the action of the forming punch; controlling the forming punch to return; controlling the ejector rod to move upwards until the top flange of the preform is above the clamping plates. This invention can not only smoothly and quickly produce large-size blind hole shells, but also significantly reduce the end allowance of the blank required during the forming process.

This invention discloses an apparatus and method for preparing composite thin films for solar cells. The apparatus includes a lower conveying mechanism, a middle coating mechanism, and an upper adsorption mechanism. A friction mechanism generates static electricity on the surface of a lifting slide to adsorb the thin film. A cutting blade cuts the film to be processed, which is then transferred to the lifting slide surface by a film suction cup. An internal electric cylinder pushes the film off and onto a conveyor belt for automatic unloading. The method includes: electrostatic preparation, lifting slide resetting, film cutting, film adsorption and transfer, film unloading and conveying, and end clamping preparation. This invention achieves automatic cutting, electrostatic adsorption, transfer and bonding, and continuous conveying of the thin film through an integrated design, improving the efficiency and positioning accuracy of thin film composite preparation, and is suitable for the automated production of solar cell materials.

The invention discloses a seamless chain and a preparation method thereof. The technical problems that in the prior art, the mechanical property of a weld joint is weak, and the fatigue life is short are solved. The preparation method comprises the steps that a chain ring piece is obtained, the chain ring piece is an integrated chain ring, or the chain ring piece is a semi-finished chain with at least two integrated chain rings; metal powder is used as a raw material, laser energy deposition is carried out in the direction from bottom to top, and a first half ring with an upward opening is obtained; and the chain ring piece is nested with the first semi-ring through the opening of the first semi-ring, laser energy deposition continues until a second semi-ring is formed, and a finished chain is obtained. In the seamless chain preparation method provided by the invention, each chain ring is an integrated chain ring, so that weak points are avoided, and the fatigue life is long.

This invention discloses a method for preparing Zr-2.5Nb alloy by hot-pressing sintering coarse-grained pre-alloyed spherical powder below the β phase transformation temperature. The method includes: 1. Selecting coarse-grained spherical Zr-2.5Nb alloy pre-alloyed powder prepared by the plasma rotating electrode method as raw material; 2. Placing the raw material into a mold and placing it in a hot press furnace under vacuum; 3. Heating to a temperature below the β phase transformation temperature of Zr-2.5Nb alloy and holding at that temperature for hot-pressing sintering; 4. Cooling to room temperature to obtain a dense Zr-2.5Nb alloy. This invention utilizes the characteristics of coarse-grained spherical Zr-2.5Nb alloy pre-alloyed powder—namely, its fine grain structure, crystal defects, and metastable α′ martensitic phase transformation activity—to achieve efficient densification at lower temperatures and suppress grain coarsening, resulting in a Zr-2.5Nb alloy material with uniform structure, high density, and excellent overall performance, suitable for the field of biomedical implants.

The application provides a kind of carotenoid Pickering emulsion microcapsule and its preparation method, belong to food microcapsule preparation technical field.The application uses octenyl succinic acid starch microparticle as the emulsifier of Pickering emulsion, its interface stability relies on the steric hindrance between microparticles, can adapt to high homogeneous pressure processing, so that the emulsion particle size can be further reduced;By pre-dissolving sucrose, malt dextrin and other hydrophilic macromolecules in water, the solubility of octenyl succinic acid starch in water can be effectively reduced, so that the Pickering emulsion can be successfully prepared;By reducing the ratio of crystallization and oil, the shearing time can be shortened;By improving the viscosity of emulsion, the contact time of material and oxygen can be effectively reduced during high-speed shearing and homogenization, so as to improve the crystallization yield and reduce the production cost.

This invention discloses a novel use of Artemisia annua seeds, a medicinal and edible compound composition for relieving hangovers and protecting the liver, chewable tablets, and their preparation process. This invention is the first to discover that the mucilage in Artemisia annua seeds slows down ethanol diffusion through a dual mechanism of physical adsorption and three-dimensional network blockage, thus slowing down the rate of ethanol absorption in the digestive tract, reducing the peak blood plasma concentration, and delaying or prolonging the time of intoxication. Therefore, it can be used in the preparation of health products / functional foods that protect the stomach, prevent intoxication, and delay alcohol absorption. Based on this discovery, this invention provides a medicinal and edible compound composition for relieving hangovers and protecting the liver, composed of 10-15 parts by weight of Pueraria lobata, 10-15 parts by weight of Hovenia dulcis, 8-10 parts by weight of Lilium brownii, 4-8 parts by weight of Poria cocos, 4-8 parts by weight of Dioscorea opposita, and 4-8 parts by weight of Artemisia annua seeds. Furthermore, to balance rapid effectiveness and compliance, it is formulated as a chewable tablet. This chewable tablet can significantly prolong the time of intoxication and shorten the sobering-up time, and is significantly superior to the group lacking Artemisia annua seeds in terms of antioxidant indicators (SOD, GSH, MDA) and hangover relief effect.

The utility model relates to the technical field of reagent preparation devices, in particular to an absorbent formula preparation device which comprises a reaction mechanism, a temperature control mechanism, a water supply mechanism and a conveying mechanism, the reaction mechanism comprises a reaction container and a stirring structure arranged at the top of the reaction container, and an output port of the water supply mechanism is located above the reaction container; the temperature control mechanism comprises a temperature measuring part and a heat exchange part, the heat exchange part is arranged at the bottom of the reaction container, and the temperature measuring part is arranged in the reaction container; the conveying mechanism comprises a solid conveying mechanism used for conveying solid raw materials and a liquid conveying mechanism used for conveying liquid solvents. The automatic continuous production system comprises a preparation device, a monitoring mechanism and a centralized control box, the monitoring mechanism is used for monitoring internal parameters of the reaction container, and the centralized control box is used for receiving data signals of the monitoring mechanism and controlling the temperature, the stirring rate and the reagent density in the preparation device according to the data signals. By implementing the scheme, the preparation quality and yield of the absorbent can be effectively improved.