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302results about How to "Fine powder" patented technology

Paint pulverizer

The invention discloses a paint pulverizer, and relates to the technical field of paint production equipment manufacture. The paint pulverizer comprises a pulverizing cylinder, whose bottom is provided with a first filtering screen, the pulverizing cylinder is connected to a feed hopper, a rotation shaft and a plurality of pulverizing blades are arranged in the pulverizing cylinder, the plurality of pulverizing blades are fixed on the rotation shaft, one end of the rotation shaft is connected to a first motor through mechanical transmission; a powder pressing box is arranged under the pulverizing cylinder, the powder pressing box is provided with a discharge opening provided with a second filtering screen, two press rollers, which rotate in the opposite directions, are arranged in the powder pressing box and connected through gear transmission, and one of the press rollers is connected to a second motor. The paint fed into the pulverizing cylinder is pulverized by the pulverizing blades, then screened by the first filtering screen, transported to the powder press box, rolled by two press rollers that rotate in the reverse directions, and finally screened by the second filtering screen, the paint is more radically pulverized, the powder is finer, and the paint luster is brighter, compared to the prior art.
Owner:WUZHOU WANGJIE MACHINERY MFR

Insulin Derivative

InactiveUS20090239785A1Prolonged profile of actionNo bluntingPeptide/protein ingredientsMetabolism disorderDrugHuman insulin
The present invention relates to novel human insulin derivatives which are soluble at physiological pH values and have a prolonged profile of action. The invention also relates to methods of providing such derivatives, to pharmaceutical compositions containing them, to methods of treating diabetes and hyperglycaemia using the insulin derivatives of the invention and to the use of such insulin derivatives in the treatment of diabetes and hyperglycaemia.
Owner:NOVO NORDISK AS

Heat treated polymer powders

The invention relates to heat treatment of polymorphic semicrystalline or crystallizable polymers to increase the content of the highest melting crystalline form. Such heat treatment results in a polymer powder that has a consistent, uniform melting range, improved flow and improved durability of the powder particle size for applications that require powder flow at elevated temperatures. In addition to improved powder properties, the articles produced from the powders also exhibit better physical properties in both appearance and in mechanical properties. Thus the invention also includes polymer powders and articles produced by the described processes.
Owner:ARKEMA INC

Lithium cobalt oxide, method for manufacturing the same, and nonaqueous electrolyte secondary battery

Lithium cobalt oxide, which can provide a nonaqueous electrolyte secondary battery having an excellent initial capacity and an excellent capacity retention, and a method for manufacturing the same are provided. The lithium cobalt oxide has a tap density of at least 1.7 g / cm3 and a pressed density of 3.5 to 4.0 g / cm3. A method for manufacturing the lithium cobalt oxide includes the step of selecting a lithium cobalt oxide (A) and a lithium cobalt oxide (B) so that a difference in the tap density between the lithium cobalt oxide (A) and the lithium cobalt oxide (B) is at least 0.2 g / cm3; and mixing the lithium cobalt oxide (A) and the lithium cobalt oxide (B).
Owner:NIPPON CHECMICAL IND CO LTD

AlSi10Mg powder material and preparation method and application thereof

The invention relates to an AlSi10Mg powder material for 3D printing and a preparation method and application thereof. The main alloying elements of the powder material comprises, by mass, 9.0-11.5% of Si; 0.2-0.50% of Mg and the balance aluminum. According to the preparation method of the AlSi10Mg powder material, the powder material is prepared by adopting the method of inert gas atomization; high speed airflow is used to crush a high temperature melting fluid of the powder material into small liquid droplets to cool down the small liquid droplets rapidly and to make the small liquid droplets freeze into mental powder. The mental powder obtained is sieved and, size grading is conducted on the mental powder. The AlSi10Mg powder material is obtained. The AlSi10Mg powder material meets thequality requirements of industrial grade mental powder materials for 3D printing; and the AlSi10Mg powder material has the advantages of being high in purity, low in impurity content, even in alloyingcomponent, low in oxygen content, high in degree of sphericility, few in satellite ball, even in powder particle size distribution, controllable in quality and excellent in powder property.
Owner:BEIJING BAOHANG ADVANCED MATERIALS CO LTD

WC-Co hard alloy with binding phase enhanced by Ni3Al and preparation method thereof

ActiveCN102383021AGuaranteed temperatureTemperature does not exceedAl powderNon oxidative
The invention discloses a toughness-enhanced hard alloy with a Co binding phase enhanced by Ni3Al. The hard phase of the hard alloy is WC, and the binding phase is Co and Ni3Al of which the volume percent is 10-40%. The preparation method of the hard alloy comprises the following sequential steps of: uniformly mixing 2.07-16.05wt% of Ni powder and Al powder with WC powder according to a composition ratio of Ni25Al; placing the uniformly mixed powder in a graphite container at the thickness not more than 50 mm, heating to 1100-1200 DEG C in a non-oxidative atmosphere at a speed not more than 5DEG C/min, maintaining the temperature for more than 1 hour, and naturally cooling to obtain a mixture of WC and Ni3Al; grinding, pulverizing and screening to obtain mixed powder with a particle sizebelow 120 mu m; carrying out deoxidation pretreatment in 400+/-50 DEG C hydrogen; carrying out pre-wet-grinding and mixing on 83.26-97.62wt% of mixed powder obtained after deoxidation pretreatment for 6-12 hours, then adding the balance of Co powder, and carrying out wet grinding for 18-36 hours; carrying out spray drying and pressure shaping on the wet-ground mixed material; and carrying out low-pressure liquid-phase sintering on the pressed blank at 1350-1550 DEG C to obtain the WC-Co hard alloy with the binding phase enhanced by Ni3Al. The hard alloy has the advantages that: a gamma' phaseis dispersed and distributed in the binding phase, the binding phase is uniformly distributed, and the alloy has high compactness, high strength, good wear resistance and excellent high-temperature oxidation resistance and corrosion resistance.
Owner:ZHUZHOU HARD ALLOY GRP CO LTD

Method for preparing absorbing material based on modified konjac glucomannan

The invention discloses a method for preparing an absorbing material based on modified konjac glucomannan. The method is characterized by comprising the following steps of: soaking konjac glucomannan in mixed solution of an organic small molecular swelling solvent and water, swelling for 2 to 24 hours, performing vacuum filtration, and washing a solid by using an organic small molecular solvent to remove residual moisture; and adding the swollen konjac glucomannan into a heterocyclic or aromatic derivative which is dissolved by the organic small molecular solvent and has lone electron pairs or / and free electrons, stirring and reacting for 1 to 72 hours in the presence of a catalyst at the temperature of between 50 and 120 DEG C, precipitating a material obtained after the reaction by using a precipitation solvent, filtering, and washing and drying a solid to obtain modified konjac glucomannan powder. In the method, the modified konjac glucomannan has the characteristic of absorbing heavy metal ions; and the absorbing material can be widely used for treating heavy metal ions, radioactive nuclide wastewater and the like produced by mining industry, chemical industry, nuclear industry and the like.
Owner:SOUTHWEAT UNIV OF SCI & TECH

Nano mesoporous microspherical Bi5O7I photocatalyst and hydrothermal-thermal decomposition preparation method thereof

The invention relates to a nano mesoporous microspherical Bi5O7I photocatalyst and a hydrothermal-thermal decomposition preparation method thereof. The Bi5O7I photocatalyst is of a nano mesoporous microspherical shape; the average particle size of microspheres is 1 to 5 microns, and the average aperture of mesoporous on the surface of the microspheres is 7 to 9 nm. The method comprises the following steps: respectively dissolving bismuth salt and iodine salt into quantitative ethylene glycol, performing ultrasonic oscillation treatment, slowly adding iodine salt solution into bismuth salt solution after complete dissolving, performing magnetic stirring to obtain a precursor BiOI, performing hydrothermal reaction on the precursor to prepare BiOI powder, heating the powder body in a tubular furnace under high temperature for decomposition, and preserving the temperature for 2 h to prepare Bi5O7I powder. The Bi5O7I powder prepared by the hydrothermal-thermal decomposition method has the characteristics of uniform shape, high stability and good photocatalysis performance, integrates the advantages of the hydrothermal method and the thermal decomposition method, and is short in reaction time, simple in technological process, lower in raw material cost and suitable for industrial popularization and application.
Owner:SHAANXI NORMAL UNIV

Chinese yam full flour and preparation method thereof

The present invention discloses a Chinese yam full flour and a preparation method thereof, belonging to the technical field of food processing. The Chinese yam full flour is prepared by the following steps: (1) cleaned Chinese yams are placed into a boiling water bath for 10-40 min, the boiled Chinese yams are taken out and cooled, the cooled Chinese yams are drained and the drained Chinese yams are sliced for standby application; (2) the cut Chinese yam slices are placed in a color protection solution for 0.5-2 h and the soaked Chinese yams are taken out to be beat for standby application; (3) alpha-amylase is added into the beat Chinese yam pulp, the Chinese yam pulp is subjected to enzymolysis at a temperature of 45-85 DEG C under a pH of 5.0-7.5 for 30-120 min, and the enzymolyzed Chinese yam pulp is subjected to enzyme inactivation and filtration to obtain an enzymatic hydrolysate and residue for standby application; (4) the enzymatic hydrolysate is concentrated to a soluble solid content of 10-30%, an excipient is added, and the mixture is spray-dried to obtain a Chinese yam powder A; and (5) the residue is subjected to microwave vacuum freeze-drying to obtain a Chinese yam powder B, the Chinese yam powder B is mixed evenly with the Chinese yam powder A, and thereby the Chinese yam full flour is obtained. The Chinese yam full flour is nutrient-rich, has a bright color with a slight brown color, is mellow in sweet and fragrant taste, is uniform in texture, is fine in powder, and is good in reconstituability.
Owner:HENAN UNIV OF SCI & TECH

Blueberry chrysanthemum capsules and preparation method thereof

The invention discloses a blueberry chrysanthemum capsule consisting of the following components (mass percent): 15-30% blueberry powder; 25-35% chrysanthemum powder; 2-5% vitamin C; 35-50% starch. Powders of the components are mixed and loaded into empty capsule bodies of hard capsules, and then capsule caps are covered, thus the blueberry chrysanthemum capsules are obtained. Raw materials used in the invention are natural blueberry and chrysanthemum. In combination with the two natural substances containing anthocyanin and xanthin as well as vitamin C, natural pigments needed for eyes can be simultaneously supplemented with mutual synergistic effect so that teenager short-sightedness can be prevented and eye fatigue can be eased.
Owner:SHANGHAI INSTITUTE OF TECHNOLOGY

Composite traditional Chinese medicine composition and preparation method and application thereof

The invention discloses a composite traditional Chinese medicine composition which can stimulate the appetite and tonify the spleen, can effectively strengthen the physique of cultured animals and promote the rapid growth of the cultured animals, as well as belongs to the field of veterinary medicines. The composite traditional Chinese medicine composition comprises the ingredients of fructus crataegi cuneatae, pine needle, dried orange peel, garlic, radix astragali and sodium sulfate. The composite traditional Chinese medicine composition can be directly added into feeds of livestock and aquatic products, can promote the rapid growth of the cultured animals, and can also be processed into powdered drug, granules, tablets, pills and the like for treating diseases of poor growth of the livestock and the aquatic products and the rehabilitation of recovered cultured animals. The raw materials of the composite traditional Chinese medicine composition are Chinese medicinal plants, are convenient to obtain, and low in cost. The composite traditional Chinese medicine composition has remarkable treatment effect and medicine effect, little dosage, convenient use and rich means. In addition,the composite traditional Chinese medicine composition is environmental-friendly without containing antibiotics, and has no residue and little toxic and side effects.
Owner:BEIJING DABEINONG ANIMAL HEALTH TECH
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