53results about How to "Prevent excessive volatilization" patented technology

The invention discloses a method for preparing an Al0.5CoCrFeNi high-entropy alloy. An intermediate alloy serves as a raw material, and volatilization of a low-melting-point element Al in the smelting process is greatly reduced. Meanwhile, a vacuum induction heating device is adopted, the electromagnetic stirring effect of the induction heating device is utilized, and therefore the component uniformity of a cast ingot is guaranteed. According to the method, the melting point difference between the lowest-melting-point metal Al and the highest-melting-point metal Cr is indirectly reduced, the problem of excessive volatilization of the low-melting-point Al simple substance in the smelting process is solved, and the component uniformity of the multi-element high-entropy alloy is guaranteed through the electromagnetic stirring effect existing in induction heating. Through reasonable designing of the atmosphere, the air pressure, the die preheating temperature, the smelting temperature, the heat preservation time, the casting speed and other parameters in the smelting process, a large Al0.5CoCrFeNi high-entropy alloy cast ingot is successfully prepared.

The invention discloses a method for preparing a multilayer ceramic capacitor. The method includes the steps that an isolation thin film is prepared; ceramic thin films are prepared; the ceramic thin films are stacked, and a first substrate is obtained; the ceramic thin films on which inner electrode patterns are printed are prepared; the ceramic thin films on which the inner electrode patterns are printed are stacked, a stacking unit is obtained, the ceramic thin films are stacked on the two sides of the stacking unit respectively, and a second substrate is obtained; the first substrate, the isolation thin film and the second substrate are sequentially stacked and then laminated, and a third substrate is obtained; the third substrate is cut, and the second substrate is completely cut off to form multiple stacked bodies; adhesion removal and sintering are conducted on the third substrate, and the stacked bodies are sintered into a ceramic body; the ceramic body is separated and then chamfered, and two outer electrodes are attached to the two ends of the ceramic body. According to the method for preparing the multilayer ceramic capacitor, in the sintering process, sintering additives in the first substrate volatilize, so that the local atmosphere with high volatilization concentration is formed around the stacked bodies, and the sintered ceramic body is uniform, compact and good in uniformity.

The invention provides an in situ observation device of a pitting forming process. The device comprises an atomic force microscope, a sample table, an electrolytic tank, an upper cover plate and a test sample, wherein the electrolytic tank further consists of a bottom plate of the electrolytic tank, a positioning pin, a cylinder of the electrolytic tank, a sealing washer, an upper panel, a soaking liquid, a compressing bolt and a compressing nut. The invention further provides an in situ observation device of the pitting forming process using the device. The method comprises the following steps: combining the atomic force microscope with the electrolytic tank for soaking test; fixing the test sample; scanning and imaging the surface of the test sample by using the atomic force microscope periodically under a touch model to form an image file to carry out in situ dynamic tracking and observation to the test sample; and carrying out in situ dynamic observation to the topographic characteristic of the pitting forming process so as to obtain the topography and phase diagram of the pitting forming process to promote development of pitting research.

The present invention provides a facial mask composition, comprising by weight percentage, the following ingredients:

• • (a) 0.01% to 30% of emollient oil;
  • (b) 0.01% to 20% of moisturizer;
  • (c) 0.01% to 10% of thickening polymer;
  • (d) 0.01% to 10% of skin conditioner; and
  • (e) 10% to 90% of deionized water;

wherein, the skin conditioner comprises, by weight parts: Radix Astragali 20, Aloe vera 30, Radix Angelicae Dahuricae 20 and Poria cocos 30.

The invention discloses a mild-type mite-killing anti-itching shower gel and a preparation method thereof. The shower gel contains the following components in percentages by weight: 3-6% of sodium palmitoyl sarcosinate, 4-7% of sodium myristoyl methyl beta-alanine, 3-6% of sodium lauroyl aspartate, 3-6% of an emollient, 3-6% of ceteareth-60 myristyl glycol, 4-7% of a conditioning agent, 0.1-1% ofmagnesium nitrate, 0.5-1% of sodium chloride, 0.05-1% of a chelating agent, 0.005-0.1% of a preservative, 0.005-0.1% of essence, and the balance of deionized water. The shower gel provided by the invention has the advantages of mild nature, low irritation, fine foam, easy flushing and good cleaning power, and has the functions of bacteriostasis, mite killing and skin moisturizing, and enhances skin health while effectively nourishing skin.

The invention discloses a preparation method of a multilayer ceramic capacitor. A sintered block and a laminated body are mixed together and placed on a sintered plate, and then the laminated body issintered, so that the sintered component in the sintered block volatilizes to form a local atmosphere with high volatilization concentration around the laminated body, thereby preventing the excessivevolatilization of the sintered component in the laminated body, and making the sintered ceramic body uniform, compact and uniform. Each surface of the sintered block is inwardly concave. When the sintered block and the laminated body are mixed together, the sintered block and the laminated body cannot form large area contact, so the sintered ceramic body is not easy to adhere to the sintered block. The adhesive removing of the laminate body having smaller volume can be achieved completely, and the density and dielectric properties of the ceramic body are better.

The invention belongs to the technical field of polyester catalytic synthesis, particularly relates to a method for synthesizing polylactic acid by catalyzing lactide ring-opening polymerization witha novel catalyst, and solves the problems of low reaction rate, poor product performance, poor stability of a catalyst for reaction and the like in the process of synthesizing polylactic acid by lactide ring-opening polymerization in the prior art. The method comprises the following steps: S1, dehydrating and degassing raw material lactic acid, and adding a catalyst I for prepolymerization to obtain a lactic acid oligomer; s2, jointly adding the lactic acid oligomer and the mixture I into a depolymerization kettle for depolymerization to generate lactide; and S3, jointly adding lactide and a catalyst II into the polymerization kettle, and carrying out ring-opening polymerization to synthesize polylactic acid. The raw materials are easy to obtain, the synthesis method is simple, the synthesis cost is low, industrial production is easy, the synthesized polylactic acid is high in yield, high in molecular weight and narrow in distribution, and the polylactic acid has good biodegradabilityand biocompatibility and can be widely applied.

The invention discloses flocculus processing equipment. The flocculus processing equipment comprises an electrostatic field unit, a cotton laying unit, an internal environment regulating and controlling unit and a liquid delivering unit. According to the processing equipment, electrostatic spinning, electrostatic spraying and vacuum liquid absorption are combined, fibers are fluffed by utilizing charge repulsion force, an adhesive is uniformly dispersed in the processing course, the static electricity is easy to conduct and release, processing raw materials can be flexibly selected, and the processed floccules are fluffed without static accumulation. The invention also discloses a flocculus processing method. The method can be flexibly operated according to the properties of the raw materials, and is suitable for natural cotton, chemical fibers and modified cotton, and the processed flocculus has good bulkiness and wide application range. In addition, the invention also discloses the flocculus processed by using the equipment and the method, the raw materials used for the flocculus can be flexibly selected and proportioned as required, and the bulkiness is good.

The invention discloses an extraction method of traditional Chinese medicinal materials. The extraction method concretely comprises the following steps: 1, screening Chinese herbal medicine raw materials to remove inferior products, cutting off the roots of the Chinese herbal medicine raw materials by using a small Chinese herbal medicine cutting machine, and manually removing surface dirt; 2, putting the selected high-quality Chinese herbal medicines into an ultrasonic cleaning machine, adding clear water and a sodium hydroxide solution, and quickly cleaning by utilizing ultrasonic waves; 3,quickly drying the high-quality Chinese herbal medicines cleaned in step 2 in warm air, putting the Chinese herbal medicines into a drying box, and performing high-temperature drying; and 4, grindingand crushing the dried traditional Chinese medicinal materials by using a crusher and a grinder, wrapping with 3-4 layers of filter cloth, adding clean macadam blocks with the same mass, and tightly wrapping. The extraction method provided by the invention can effectively extract the effective components in the traditional Chinese medicinal materials, not only fully utilizes the effective components in the substances of the traditional Chinese medicinal herbs, but also fully utilizes the resources.

A method for preserving aquatic products at sea includes the following steps: an on-board refrigeration system is used to refrigerate the antifreeze solution, and the antifreeze solution is used as a main cold source, and temperatures at centers of fish bodies drop rapidly to achieve rapid cooling and reduce activity of endogenous enzymes and inhibit proliferation of microorganisms by direct or indirect heat exchange with captured catches. The antifreeze solution contains edible alcohol, propylene glycol, glycerol, calcium chloride, sodium chloride, amino acids, Antarctic krill protein hydrolysate with average molecular weight of 50-100 KDa, surfactant and water, and the mass percentage of each component is as follows: edible alcohol 15%-30%, propylene glycol 10%-30%, glycerol 2%-15%, calcium chloride 1%-10%, sodium chloride 3%-10%, amino acid 0.1%-0.15%, Antarctic krill protein hydrolysate 0.01%-0.3%, surfactant 0.005%-0.5%, and the balance is water.

The invention discloses a floor treatment process with fine wire drawing effect. The floor treatment process comprises the following steps that a softening agent is coated on the surface of a floor through a coating roller, the coating amount of the softening agent is 15-20g/m<2>, then the floor is dried under the 70-80 DEG C environment, the drying time is 15-20 seconds, and the surface of the floor is subjected to wire drawing by a wire drawing roller to obtain a finished floor. The floor treatment process has the characteristics of good wire drawing effect, high wire drawing efficiency andlow wire drawing cost.

The invention discloses a lint filtering device of a clothes dryer and an application method of the lint filtering device. The lint filtering device comprises an air duct, a lint filter and a smell containing unit. The air duct is formed in the clothes dryer, designed to be connected to a hot air unit of the clothes dryer and used for conveying hot air generated by the hot air unit; the lint filter is arranged at an air duct outlet, mainly composed of a frame with a supporting function and a filtering screen for filtering lint and provided with the smell containing unit; the smell containing unit can absorb and store a smell additive, and in the drying process, smell is exhausted along with the hot air; the smell containing unit is detachably arranged on the frame of the lint filter. The clothes dryer is arranged on the lint filtering device, has a function of filtering lint, can also add a corresponding smell for dried clothes and is simple in structure and convenient to install; in addition, the lint filtering device can be detached and replaced according to the demand, and the smell additive is easy to store and cannot be easily volatilized. According to the lint filtering device of the clothes dryer and the application method of the lint filtering device, the lint filtering device is more durable and effective during use.

The invention provides medicine patch used for preventing and curing frostbite. The medicine sticking used for preventing and curing the frostbite comprises an upper elastic cloth layer and a lower elastic cloth layer, the two pieces of elastic cloth are same in size and shape, corresponding edges of the elastic cloth are sewed, and a medicine containing cavity is formed; the middle portion of the upper elastic cloth layer is provided with a zipper, the medicine containing cavity is divided into a plurality of semi-closed medicine containing units by a plurality of sewing threads which are perpendicular to the zipper, medicine bags are contained in the semi-closed medicine containing units, and two ends of the upper elastic cloth layer and the lower elastic cloth layer are provided with letter adhesive buckles which are matched with each other. By means of the structure, the medicine bags are contained in the medicine containing cavity, in the process of curing the frostbite, the inconvenience that medicine is directly laid on an affected part is avoided, the medicine containing cavity is divided into the semi-closed medicine containing units, the situation that the medicine in the integral medicine containing cavity is distributed unevenly is avoided, and by means of the arrangement of the semi-closed medicine containing units, taking and containing of the medicine bags are convenient.

The invention discloses an acupoint patch for treating bronchial asthma cold fluid accumulation in lung, and relates to the technical field of traditional Chinese medicine patches. The acupoint patch for treating the bronchial asthma cold fluid accumulation in lung comprises a base layer, a protective layer and a plaster, and is characterized in that the plaster comprises the following raw materials which are amplified or reduced in proportion: 60g of ephedra, 60g of cassia twig, 60g of raw radix paeoniae alba, 60g of dried ginger, 60g of schisandra chinensis, 60g of pinellia ternate, 60g of honey-fried licorice root, 30g of asarum, 60g of radix pseudostellariae, 150g of astragalus membranaceus, 90g of poria cocos, 100ml of table vinegar, 2500ml of sesame oil and 600-1200g of yellow lead powder. The acupoint patch has the advantages of being safe, free of toxic and side effects, fast in effect taking, fast in rehabilitation and high in cure rate; the preparation method is simple and low in cost; oral administration is not needed, and applicable groups such as infants who cannot take traditional Chinese medicine orally are expanded. The acupoint patch is matched with a medicine iontophoresis instrument for use so that the medicine can directly enter the body through the skin, and the bioavailability of the medicine is high.