25results about How to "Stable content" patented technology

The invention provides a hot-melt bismaleimide resin matrix, a prepreg, a composite material and a preparation method thereof, and the hot-melt bismaleimide resin matrix is characterized by comprising the following preparation raw materials by mass: 70-100 parts of a bismaleimide resin monomer, 50-65 parts of a process modifier, 20-35 parts of an active diluent, 10-15 parts of a toughening modifier, and 10-20 parts of a heat-resistant modifier; wherein the bismaleimide resin monomer is one or a mixture of two of a diphenylmethane diamine type bismaleimide monomer and a diphenyl ether diamine type bismaleimide monomer. The hot-melt bismaleimide resin prepreg prepared by the method is stable in resin content, uniform in resin distribution, low in volatile matter content and good in laying property; and the prepared double-horse-based prepreg is suitable for various composite material forming processes, and the application field of the prepreg is expanded.

The invention relates to the field of modernization of traditional Chinese medicines, in particular to a method for identifying a Dayuan liquid preparation. The invention respectively provides thin-layer chromatography identification methods for pogostemon cablin, bupleurum chinense and glabrous sarcandra herb in the daoyuan liquid preparation, the thin-layer chromatography identification methods for the three components are good in specificity, repeatability and stability, and effective quality control of the daoyuan liquid preparation can be realized.

The invention discloses a separation and purification method of phytosterol ester, and particularly relates to the field of fine chemical engineering. The method comprises the following steps: firstly removing a phytosterol crude product from a plant deodorized distillate, then carrying out solvent crystallization on a phytosterol ester concentrated solution from which natural vitamin E is removed, carrying out column chromatography on a crystallized product, and separating to obtain a phytosterol ester product, wherein the filler of the chromatographic column is a mixture of modified silica gel and porous graphene; wherein the modified silica gel is prepared by the following steps: firstly, putting silica gel into a hydrochloric acid aqueous solution for activation to obtain activated silica gel; and carrying out reflux reaction on the activated silica gel, anhydrous toluene and 3-(trimethoxysilyl) propyl methacrylate, and drying to obtain the silica gel modified by the silane coupling agent. According to the separation method disclosed by the invention, the phytosterol ester with high purity and stable content can be separated.

The invention discloses a preparation method of a high-heat-resistance aluminum alloy, and belongs to the technical field of nonferrous metal manufacturing. Copper-clad aluminum composite powder, iron-clad aluminum composite powder and nickel-clad aluminum composite powder are prepared through a chemical plating method, the powder is mixed according to a certain proportion, slightly oxidized in air and then subjected to vacuum sheathing, and a sheathing powder billet is subjected to hot isostatic pressing or hot extrusion densification treatment; in the densification process, a dual process of internal oxidation and nano heat-resistant phase precipitation is further carried out, and finally two nano heat-resistant phases, namely Al2O3 and an AlFeNiCu intermetallic compound, are formed in the aluminum alloy, so that the heat resistance of the aluminum alloy is remarkably improved.

The invention is suitable for the technical field of mineralized water purification, and discloses a filter element component and a mineral spring water purifier. The first filter body used for pre-filtration and the mineralization filter body used for mineralizing the water body are arranged in the filter element component, a proper amount of mineral substances can be dissolved out in the water body, a user can supplement the mineral substances through drinking water, the filter element component can be installed on a water purifier provided with a pre-filter element and an RO membrane filter element, the original pre-filter element is directly replaced for use, and the water purification efficiency is improved. An original water purifier is upgraded into a mineral spring water purifier with a mineralization function, a user can use the mineral spring water purifier conveniently, the second filter body further comprises the rear filter body, the mineralization filter body is far away from the area, with the high water flow speed, in the shell relative to the rear filter body, and the problem that the service life of mineralization substances is shortened due to the fact that the mineralization substances of the mineralization filter body are excessively consumed due to the too high water flow speed is solved; meanwhile, the situation that the content of mineral substances in the mineralized water fluctuates greatly due to uneven water flow is avoided, and the content of the mineral substances in the mineralized water is relatively stable.

The invention discloses carotenoid composite particles with a low contact angle as well as a raw material composition, a preparation method and application of the carotenoid composite particles. According to the method, the problems that carotenoid is poor in water solubility and easy to degrade are solved, and the use risk of organic reagents is reduced. The composite particles contain 5-20% of carotenoid (such as lutein, beta-carotene and the like), a carrier, an emulsifier, a small molecule filler and an antioxidant. Through multiple times of low-temperature co-grinding, the contact angle is gradually reduced, and it is ensured that the particles have excellent hydrophilicity and stability. According to the process, the production process is simplified, the energy consumption is reduced, the stability of the product during rapid dissolution and dispersion in cold water and high-temperature sterilization is ensured, and the floating oil or layering phenomenon is avoided. And the final product is suitable for various foods and health-care product preparations such as solid beverages, liquid beverages, tablets and the like, as well as skin care products and cosmetic products, is particularly suitable for application scenes needing high-temperature treatment, and provides better stability and safety guarantee.

The utility model relates to the technical field of pearl extracting solutions, in particular to a pearl extracting solution concentration device which comprises a base, a heating concentration tank is fixed at the top of the base, a liquid inlet pipe is communicated with the top of the heating concentration tank, a filter frame is fixed in the heating concentration tank, a filter screen is clamped in the filter frame, and a liquid outlet pipe is communicated with the liquid inlet pipe. A rotatable rotating rod is arranged in the heating concentration tank, a circular truncated cone is fixedly sleeved outside the rotating rod, a stirring rod is fixed at the bottom of the circular truncated cone, and the end part of the heating concentration tank is communicated with a liquid outlet pipe. According to the concentration device for the pearl extracting solution, through rotation of a stirring shaft and a stirring rod, the extracting solution in the concentration tank is fully stirred, the interior of the tank is in a flowing state, it is guaranteed that the content of the pearl solution is stable, the extraction effect is improved, and the pearl extracting solution is filtered in the concentration process through shaking of a filter screen; impurities in the extracting solution can be removed, and the concentration quality of the cooking extracting solution is improved.

The invention relates to the technical field of concentration equipment, and particularly discloses equipment and a method for concentrating a ginsenoside extracting solution. A concentration unit; a dispersing unit; an eccentric suction unit; and a heating unit. According to the invention, through circumferential stirring of the dispersing unit and reciprocating circulation action of the eccentric suction unit, multi-dimensional space turbulent flow is realized for extracting solutions of different levels in the concentration container, the layering phenomenon of heavy component sinking and light component floating is forcibly broken, and high homogenization of the extracting solutions in the whole concentration process is ensured, so that the concentration effect consistency is improved, and the concentration efficiency is improved. The stability of the content of ginsenoside in different batches of products is ensured; meanwhile, heat is quickly and uniformly distributed in the liquid due to continuous physical disturbance, so that degradation or charring of a heat-sensitive ginsenoside component caused by local overheating is avoided, and the activity of a target component is reserved to the greatest extent.

The present invention discloses a continuous series operation and circulating saturated ion exchange system. The present invention realizes regeneration after the resin is fully saturated by setting up a series continuous operation of exchange columns and a countercurrent circulation saturation system. At the same time, through the design of multiple pipelines and multiple valves, the resin columns can form a series continuous operation with each other, so that uninterrupted separation, regeneration, cleaning and other operations can be achieved. The automatic operation and control of the system can be achieved through the design of multiple online detection devices. The present invention can be used for surface treatment such as electroplating, metallurgy, electronics, new energy, new materials, chemical industry, pharmaceuticals and other industrial fields. The present invention can achieve the separation, recovery, enrichment, purification, etc. of metal ions and other substances. While realizing the separation and enrichment of target objects by ion exchange method and obtaining high-purity and high-content target solution, it can also ensure the recovery rate or removal rate of the target object and the automatic and continuous operation of the system.

The invention discloses a preparation method of a decitabine impurity III, and belongs to the field of chemical pharmacy. The decitabine impurity III belongs to a degradable impurity and can be subjected to material conversion in synthesis, transportation and storage processes, and the decitabine impurity III obtained by alkali degradation, separation and purification, desalination and freeze-drying has the advantages of high yield, high purity and simple preparation method. A reliable impurity reference substance can be provided for quality research of decitabine, so that the product quality is ensured, and the medication safety of decitabine is improved.

The present invention relates to the technical field related to aluminum ash processing devices, and specifically to a dust-free secondary aluminum ash processing device and a processing method thereof, comprising a material receiving box, a heating and screening structure, an angle adjustment mechanism, a vibration mechanism and an air selection structure; the material receiving box is arranged horizontally; the heating and screening structure is arranged above the material receiving box, the heating and screening structure comprises a sieve plate and a dust cover, and the dust cover is arranged above the sieve plate; the angle adjustment mechanism is arranged between the material receiving box and the sieve plate, and the angle adjustment mechanism is used to adjust the inclination angle of the sieve plate; the vibration mechanism is arranged on one side of the sieve plate, and the vibration mechanism is used to drive the sieve plate to move back and forth up and down in the inclined plane where it is located; the air selection structure is arranged between the sieve plate and the dust cover, and the air selection structure is used to extract useless aluminum ash from the surface of the sieve plate; the present invention arranges a heating and screening structure, an angle adjustment mechanism, a vibration mechanism and an air selection structure, so as to achieve the goal of maintaining the processing efficiency and processing difficulty unchanged during the long-term processing of aluminum slag.

The invention discloses a concrete mixer for cantilever concrete member construction, the mixer comprises a support, the bottom of the support is provided with a mixing drum, one side of the top of the support is provided with a primary material distribution hopper, and the other side of the top of the support is provided with a secondary material distribution hopper; all liquid concrete raw materials, foam groups and solid concrete raw materials with the amount lower than the required amount are filled into the stirring barrel through the primary material distribution hopper, and a secondary material distribution hopper is arranged on one side of the top of the support. The foam group is firstly filled into the concrete slurry with the solid material amount smaller than the rated amount, so that the concrete slurry with the relative moisture content increased and the viscosity reduced is firstly stirred and dispersed with the foam group, the foam group is more easily dispersed, the contact area between the foam and slurry particles is reduced, and in cooperation with the rotation of the stirring barrel, the stirring efficiency is improved. The solid material is subsequently supplemented for multiple times, so that the foam loss in the subsequent filling process is reduced, and the use reliability of the stirring equipment is further improved.

The invention relates to the technical field of starch gelatinization, and in particular to a modified starch gelatinization device and method thereof. The modified starch gelatinization device comprises an outer cylinder and an inner cylinder, the outer cylinder and the inner cylinder are connected at the bottom by a support rod, a heat storage space is provided between the outer cylinder and the inner cylinder, the heating and heat preservation of the material in the gelatinization cylinder is achieved by the heat storage space, a water inlet pipe and a water return pipe are connected to the upper side of the heat storage space, during the heating gelatinization process, the water vapor in the gelatinization cylinder can be extracted by a pumping mechanism, and then sent out by a rotating shaft and refluxed to the bottom end of the rotating shaft and discharged upward again by a bottom plate, the water vapor discharged by the bottom plate passes through the gelatinization liquid and rises to the inner side of the top end of the gelatinization cylinder again, so as to realize the circulation of water vapor, on the one hand, this arrangement can avoid the water loss problem caused by gelatinization through an open boiling pot in the prior art, so that the overall water content in the gelatinization cylinder is kept stable, and the starch can be prevented from being excessively gelatinized at high temperature and causing coking.

The invention discloses a selenium-rich enterococcus faecium microbial inoculum and a preparation method thereof.The selenium-rich enterococcus faecium microbial inoculum is prepared through a biological fermentation technology and contains organic selenium capable of being absorbed by organisms, the content of nano-selenium in the microbial inoculum is 10-120 micrograms / gram, and the number of active colonies of selenium-rich enterococcus faecium is 1 * 10 < 9 >-5 * 10 < 10 > CFU / gram. By adding the nano-selenium, the acid resistance and bile resistance of the enterococcus faecium are improved, and the survival rate of the enterococcus faecium in the digestive tract is increased, so that the bioavailability of the microbial inoculum is improved. Nano-selenium has antioxidant, anti-inflammatory and immunoregulation biological activities and the like, and after the nano-selenium is combined with enterococcus faecium, the overall functionality of the microbial inoculum can be enhanced, and more comprehensive health management is provided for hosts.

The utility model discloses a silicone sealant production device relates to sealant production technical field, including the reation kettle, the inlet of reation kettle is respectively through pipeline communication to have silica rubber jar, white carbon black jar, calcium carbonate jar, anti -settling agent jar, plasticizing agent jar, crosslinking agent jar and catalyst jar, the outlet of reation kettle is through pipeline communication to have double screw extruder, the outlet of double screw extruder is through pipeline communication to have product jar. Through adding anti -settling agent (such as organic bentonite) to reation kettle, with silica rubber, filler (white carbon black, calcium carbonate), plasticizing agent synchronous mixing, anti -settling agent can form three -dimensional net structure, prevent filler and settle in the subsequent storage and construction process, and the uniformity of silicone sealant is good, and the product quality is high.

The present invention belongs to the technical field of pharmaceutical preparations, and specifically relates to a sodium creatine phosphate injection for myocardial protection. The sodium creatine phosphate injection of the present invention comprises a sodium creatine phosphate inclusion compound, a buffer solution, an isotonicity regulator, and water for injection. The sodium creatine phosphate is encapsulated by the inclusion technology, which solves the problem that sodium creatine phosphate is difficult to dissolve in water, significantly improves the stability of the sodium creatine phosphate injection, and reduces the content of related substances.

The invention belongs to the technical field of pharmaceutical preparations, and particularly relates to a lamidetan solid preparation and a preparation method thereof. The lamidetan solid preparation is prepared from the following raw materials: lamidetan, absolute ethyl alcohol, an absorbent, a filler, an adhesive, a disintegrating agent and a lubricant, the preparation method is anhydrous granulation. According to the lamidetan solid preparation, the lamidetan is uniformly dispersed in the absolute ethyl alcohol, moisture is not introduced, meanwhile, the wettability of API is improved, the problem of raw material adhesion is solved, the absorbent in the solid preparation can preferentially lock the moisture, and the influence of the moisture on a medicine crystal form is avoided; meanwhile, the lamidetan solid preparation disclosed by the invention also has the advantages of quick response, high bioavailability, simple preparation process and the like.

The invention provides a carboxamide triazole water-soluble ointment and a preparation method thereof, and relates to the technical field of pharmaceutical preparations. The water-soluble carboxamide triazole ointment comprises carboxamide triazole and polyethylene glycol, and further comprises an antioxidant, and / or a pH regulator, and / or a penetration enhancer. Wherein the polyethylene glycol is a mixture of low-molecular-weight polyethylene glycol and high-molecular-weight polyethylene glycol, the low-molecular-weight polyethylene glycol is PEG400, and the high-molecular-weight polyethylene glycol is selected from at least one of PEG6000 and PEG8000. According to the water-soluble carboxamidotriazole ointment, polyethylene glycol with different molecular weights is used as a matrix and is matched with other auxiliary material components, so that the water-soluble carboxamidotriazole ointment is moderate in viscosity, convenient to smear and good in chemical stability, the medicine can be quickly released from the preparation, the in-vitro release capacity and the in-vitro skin penetration amount are improved, and the treatment effect on psoriasis is improved.

This invention provides an extract of *Lycopodium clavatum*, its preparation method, and its application. The preparation method includes the following steps: *Lycopodium clavatum* powder is extracted with alcohol; the resulting extract is concentrated under reduced pressure to obtain a crude extract; the crude extract is centrifuged, and supernatant I is collected; the precipitate is reconstituted and centrifuged again to collect supernatant II; supernatant I and supernatant II are combined to obtain a purified solution; the purified solution is eluted in stages using a macroporous resin, and the last eluent is collected, concentrated, and dried to obtain the *Lycopodium clavatum* extract. The preparation method provided by this invention can effectively enrich saponins, flavonoids, polyphenols, and lycoclavanin in *Lycopodium clavatum*, allowing for precise control and stable content of active ingredients; the prepared *Lycopodium clavatum* extract has good antioxidant and soothing effects and can be used in cosmetics.

The utility model discloses electronic atomization equipment. The electronic atomization equipment comprises an oil storage bin, an atomization assembly, an oil supply bin, an oil conveying pipe, an electric control device and a liquid pumping device. The atomization assembly is arranged in the oil storage bin; the oil supply bin is located below or on one side of the oil storage bin. Two ends of the oil conveying pipe are respectively connected and communicated with the oil storage bin and the oil supply bin; the liquid pumping device comprises a piezoelectric ceramic assembly and an electric connection assembly, the piezoelectric ceramic assembly is arranged in the oil supply bin, the two ends of the electric connection assembly are electrically connected with the piezoelectric ceramic assembly and the electric control device respectively, and the piezoelectric ceramic assembly is controlled by the electric control device to vibrate unidirectionally so as to pump the atomized matrix in the oil supply bin to the oil storage bin through the oil conveying pipe. The oil supply bin of the electronic atomization equipment can automatically inject oil into the oil storage bin.

The invention relates to the technical field of oral liquid extracting and processing devices, in particular to an extract mixing device for processing archaea oral liquid, which comprises a device box, a plurality of material conveying pipes are fixedly mounted at the left end of the inner side of the device box, the material conveying pipes correspond to raw material barrels, and the material conveying pipes are fixedly connected with a mixing pipe; a plurality of discharging pipes used for extracting raw materials in the raw material barrel are fixedly installed at the upper end of the inner side of the device box and correspond to the raw material barrel, the upper ends of the discharging pipes penetrate through the interior of the raw material barrel, and pushing pipes are fixedly installed at the ends, away from the raw material barrel, of the discharging pipes. The end, close to the mixing pipe, of the propelling pipe is fixedly connected with a weighing pipe used for detecting the mass of the raw materials, a mass detection device is arranged in the weighing pipe, the raw materials are weighed according to the proportion before mixing, it is ensured that the content of each component in a product is kept stable, product component fluctuation caused by inaccurate raw material amount is avoided, and the product quality is improved. Therefore, the consistency of product quality is improved.

The invention discloses a nickel-plated copper wire continuous nickel plating device, and relates to the technical field of nickel-plated copper wire processing, the nickel-plated copper wire continuous nickel plating device comprises a mounting plate, winding assemblies are arranged at the positions, close to the edges of the two sides, of the top of the mounting plate, and a purification assembly is arranged at the position, close to one winding assembly, of the top of the mounting plate. According to the continuous nickel plating device for the nickel-plated copper wire, when the copper wire needs to be subjected to nickel plating treatment, firstly, the copper wire penetrates through a nickel plating pool, and a driving pump is started, so that a nickel plating solution enters a temporary storage barrel through an output pipe; firstly, a conductivity sensor and a laser-induced breakdown spectrometer are used for detecting whether the content of each substance in the nickel liquid meets the standard or not, when it is detected that the content of a certain substance in the nickel plating liquid is reduced, a signal is transmitted to a controller, and an electromagnetic valve on the surface of a storage tank storing the substance is opened through the controller; therefore, the stability of the content of the nickel liquid is ensured.

The invention discloses a method and device for regulating and controlling the performance of a laser cladding wear-resistant coating containing multiple strengthening phases, and belongs to the technical field of laser cladding. The regulation and control method comprises the steps that the corresponding relation between the rotating speed and the powder feeding amount of each powder feeding unit is obtained, and the rotating speed of the powder feeding unit corresponding to each strengthening phase powder particle is regulated based on the preset powder feeding amount of each strengthening phase powder particle in the wear-resistant coating; the powder feeding gas flow is adjusted based on the density, the decomposability and the powder structure of each strengthening phase powder particle; the strengthening phase powder particles enter a powder feeding nozzle through a plurality of powder feeding units at the corresponding powder feeding air flow and are mixed at the outlet focus of the powder feeding nozzle; and the uniformly mixed strengthening phase powder particles are subjected to laser cladding, and the wear-resistant coating is prepared. According to the method and the device, the powder feeding gas flow of different types of powder is precisely regulated and controlled in a targeted manner, so that regulation and control of the structure and the performance of the high-hardness and high-wear-resistance cladding layer containing multiple strengthening phases are realized.

The present application relates to a nicotine pellet composition, a nicotine pellet pouch and a preparation method thereof. The nicotine pellet composition comprises nicotine, a blank pellet core, a binder, a sweetener, a pH regulator, cellulose and cellulose derivatives, a high-molecular coating material, a lubricant, a flavoring agent and a solvent. The blank pellet core is loaded with the nicotine, and the high-molecular coating material forms a single layer or multiple layers of drug loading or coating on the blank pellet core. When the high-molecular coating material forms multiple layers of drug loading or coating, it comprises, from inside to outside, a separation layer, a drug-containing layer, a protective layer and a drug-loading layer. The present application provides a nicotine pellet composition and a nicotine pellet pouch with good fluidity, stable nicotine release and stable aroma release, which can be used for the treatment of smoking cessation or nicotine dependence.

This utility model relates to the technical field of content optimization enhancement devices, and discloses an enhancement device for optimizing the content of selenium compounds. It includes a support plate, a servo motor fixedly connected to one side of the support plate, the output end of the servo motor penetrating the support plate and fixedly connected to a worm gear, which is rotatably connected to the support plate. A disc is rotatably connected through the center of the top of the support plate, a worm wheel is fixedly connected to the bottom of the disc, and the worm wheel meshes with the worm gear. A first housing is fixedly connected to one side of the top of the support plate, and the first housing is rotatably connected through the disc. Uniformly distributed sliding rods are fixedly connected to both ends of the interior of the first housing. In this utility model, the linkage between the worm gear, disc, worm wheel, pressure plate, sliding rods, first spring, first sealing plate, and ultraviolet lamp ensures the stability of the support body during detection, preventing sample displacement or leakage.