8results about How to "Avoid volatile loss" patented technology

The present invention discloses a method for preparing a molybdenum-sodium alloy target with high coating performance, and the steps are as follows: 1. preparing a mixed powder; 2. sintering the mixed powder using a medium frequency sintering furnace to obtain a Mo-Na alloy sintered powder for standby use; 3. grinding, stirring and screening the Mo-Na alloy sintered powder to obtain a Mo-Na alloy powder for standby use; 4. pressing the Mo-Na alloy powder to obtain a target blank for standby use; 5. turning the target blank to obtain a finished Mo-Na alloy tube target. Step 6: cleaning, inspecting and packaging the product after turning to obtain a Mo-Na tube target with high coating performance. The method of sintering first and then pressing can improve the uniformity of the distribution of Na elements in the molybdenum-sodium alloy, and ensure the normal alloying process of the molybdenum-sodium alloy target while controlling the proportion of the Na element, thereby laying a theoretical and practical foundation for the coating application of the molybdenum-sodium alloy target in the target field.

The present application belongs to the field of inorganic metal hydrogen storage material preparation and processing technology, and particularly relates to an activation method of deactivated Ti-Mn-based AB2 type hydrogen storage alloy. The present application co-dopes a small amount of LaNi5 alloy and metal V in the long-stored and deactivated Ti-Mn-based AB2 type hydrogen storage alloy, grinds and mixes, manually press-molds, smelts, and then crushes to obtain a new type of high-performance Ti-Mn-based AB2 type composite hydrogen storage alloy, which can efficiently activate the existing deactivated Ti-Mn-based AB2 type hydrogen storage alloy, restore good initial kinetics and hydrogen storage capacity, and activate a large amount of long-stored and deactivated Ti-Mn-based AB2 type alloy without significantly affecting the cost of the alloy, thereby promoting the wide use of Ti-Mn-based AB2 type alloy in solid-state hydrogen storage devices.

The invention belongs to the technical field of traditional Chinese medicine health-care products, and particularly relates to a health-care traditional Chinese medicine foot bath bag and a preparation method thereof.The traditional Chinese medicine foot bath bag comprises an enzymolysis extract, a volatile oil clathrate compound, slow-release disintegrating particles and non-woven fabric, the enzymolysis extract is prepared from traditional Chinese medicine rich in flavonoid and alkaloid through an enzymolysis technology, and the extraction efficiency and the utilization rate are improved; the volatile oil clathrate compound is prepared by a supercritical CO2 extraction method and an embedding technology according to the characteristic that traditional Chinese medicines are rich in volatile oil, has stability and permeation promotion effects, and has the effects of promoting blood circulation to remove blood stasis, dredging channels and activating collaterals, warming yang and dispelling cold and the like; the sustained-release disintegration particles are prepared by a modern granulation technology, and the added disintegration promoting agent can generate an effervescent effect, so that active ingredients in the traditional Chinese medicine foot bath bag can be dissolved out more easily and can be absorbed by a human body; all the components interact, so that the sleep quality and the skin state are improved, and meanwhile, the gout can be effectively prevented and relieved.

The application discloses an atomization pressure skin allergen delivery sealing test device, and relates to the field of sealing test equipment, which comprises a sealing box and a base, a test cavity is arranged in the sealing box, a sealing ring is arranged outside the sealing box, the sealing ring surrounds the outside opening position of the test cavity, an observation window and a connecting disc are arranged outside the sealing box, a reagent delivery bayonet is arranged on the connecting disc, a pressure scale is arranged on the top of the sealing box, a test device body and a supporting plate are arranged on the base, a liquid inlet pipe is arranged on the test device body, one end of the liquid inlet pipe is connected with the reagent delivery bayonet, the test cavity is communicated with the test device body through the reagent delivery bayonet and the liquid inlet pipe, and test reagents are delivered into the skin through appropriate pressure. The operation steps are simple, the device is convenient to use, the atomization enables the test reagents to quickly enter the skin, the test time is reduced, and the medical treatment time is improved.

The invention discloses a method for determining boron in soil by acid-soluble inductively coupled plasma mass spectrometry. The method comprises the following steps: decomposing a soil boron detection sample by hydrochloric acid, hydrofluoric acid and nitric acid, adding ammonium chloride and mannitol to protect B, evaporating to remove a large amount of hydrofluoric acid, dissolving soluble salts by aqua regia, adding an internal standard solution, shaking well, taking a portion of the clarified solution, diluting, and determining by plasma mass spectrometry. The method adopts the joint protective effect of ammonium chloride and mannitol, avoids the volatilization loss of B, removes hydrofluoric acid, effectively reduces the detection limit of B, and improves the accuracy. The detection limit of B is 0.7 μg / g.

This invention discloses a method for preparing a microcapsule-structured specialty coffee extract, the extract itself, and its applications, belonging to the field of fragrance and flavor technology. The method includes: adding an emulsifier to the specialty coffee extract and emulsifying it at 1530°C to obtain an emulsion; preheating a melamine resin prepolymer to 4045°C and adding it to the emulsion; raising the temperature to 4550°C within 15 minutes and adjusting the pH to 4.5-5.5 for the first stage reaction; then raising the temperature to 6080°C for the second stage reaction; and finally cooling and adjusting the pH to 7.5-8.5 to terminate the reaction, thus obtaining the microcapsule-structured specialty coffee extract. This invention, through room-temperature emulsification and a two-stage temperature-controlled process, effectively preserves the complex aroma of the specialty coffee extract. The resulting microcapsule structure is dense and stable, possessing both sustained-release and rapid aroma release via friction, significantly extending the aroma retention time. This invention also provides the application of the microcapsule-structured specialty coffee extract in the preparation of pet products.

The invention relates to the technical field of distilled liquor brewing and post-processing, and discloses a method for accelerating white liquor ester increasing through temperature-controlled plasma excitation, which comprises the following steps: S1, pretreatment: putting raw liquor into a processing container, introducing carbon dioxide gas into the raw liquor, and carrying out micro-nano bubbling treatment, dispersing and dissolving carbon dioxide in the wine body in the form of micro-nano bubbles to obtain pretreated white wine liquid; s2, plasma alcoholization: putting the pretreated white spirit liquid into a plasma reactor, starting a circulating pump to enable the white spirit liquid to circularly flow, and controlling the temperature of the white spirit liquid to be within a preset range; and S3, excitation treatment: starting a nanosecond pulse square wave power supply. A nanosecond pulse square wave power supply is matched with a carbon dioxide micro-nano bubble pretreatment technology, and transient self-induced electromotive force is induced on a gas-liquid interface by utilizing high-change-rate current generated by a nanosecond rising edge. And a high-specific-surface-area and subacid conductive environment is constructed in combination with micro-nano bubbles.

The application belongs to the technical field of hydrogen storage materials, and relates to a La-Y-Ni series hydrogen storage alloy and a preparation method thereof, and a preparation method of a hydrogen storage alloy matrix, which comprises the following steps: (1) taking La, Ce, Y, Ni, Mn and Al raw materials according to a stoichiometric ratio to perform vacuum induction smelting, and after casting and cooling, a master alloy is obtained; (2) after the master alloy is ground into master alloy powder, the master alloy powder is ball milled with Mg2Ni powder under a protective gas; and (3) after the composite alloy powder is subjected to vacuum annealing treatment, the composite alloy powder is cooled in a furnace. The Ce element partially replaces the La, optimizes crystal defects and improves corrosion resistance; the in-situ generated Mg-containing nanophase and the Ce element synergistically act, significantly optimize the hydrogen storage capacity and cycle stability of the alloy, and greatly improve the electrochemical performance of the hydrogen storage alloy.