63results about How to "Proportion design is reasonable" patented technology

The invention discloses a micron-sized metal powder metallic phase mounting method, comprising the following steps: 1, mixing powder, i.e. evenly mixing micron-sized metal powder to be mounted and fine black bakelite powder at the volume ratio of 1:1-1:2 to obtain blended powder; 2, powder loading, i.e. tiling the blended powder, tiling the fine black bakelite powder and filling thick black bakelite powder; and 3, mounting, i.e. additionally arranging the press block of a warmeinbettpresse, starting the warmeinbettpresse, and carrying out hot mounting on the micron-sized metal powder to be mounted by the conventional hot mounting method at the temperature of 120+/-20 DEG C for 40 min-50 min. The invention has reasonable design, simple operation, easy control, low requirements on devices and good use effect, and can finish simple, convenient and high-quality metallic phase mounting on various metal powders with the average grain size no larger than 200 mu m; and the test requirements of test methods of powder grain section tissue topography, components, hardness performance and the like on a sample can be satisfied after the metallic phase mounting is carried out.

The invention discloses a method for preparing a centrifugal nodular cast iron pipe. The method discloses the preparation process of the centrifugal nodular cast iron pipe of high quality, the preparation process comprises a series of operation processes of molten iron preparation, nodulizing of molten iron, centrifugal casting, annealing treatment, pipe body shaping and coating protection and the like. The method is suitable for preparation of cast iron pipes of the specification of DN 80-1000 mm, the application range is wide, and the preparation process is simple. The cast iron pipe prepared through the method has the characteristics of being high in appearance quality, fine in material structure, high in production efficiency, long in service life and the like, and compared with existing steel pipes and gray iron pipes, the cast iron pipe prepared through the method has better decay resistance and tensile property.

The invention relates to an ultra-thick high temperature-resistant steel for a pressure vessel and a preparation method thereof. After smelting and refining, the steel is subjected to continuous casting, hot rolling, normalizing and tempering. The steel comprises the following controlled chemical components in percentage by mass: 0.08-0.15% of C, 0.15-0.40% of Si, 0.40-0.70% of Mn, 0.90-1.20% of Cr, 0.15-0.30% of V, 0.25-0.35% of Mo, at most 0.025% of P, at most 0.010% of S and the balance of Fe and inevitable inclusions. The preparation method provided by the invention comprises the steps of smelting, heating, rough rolling, finish rolling, normalizing and tempering. The invention has the characteristics of appropriate design and proportion of the chemical components, simple manufacturing process, large thickness dimension (80mm), good heat resistance, stable product performance and the like.

An etch resistant tin brass alloy relates to the field of metallic material alloying and material corrosion prevention technology, which comprises the components of (by weight percentage) Cu 69.0-71.0%, Sn 0.8-1.3%, As 0.03-0.06%, Ti 0.01-0.10%, Ni 0.05-1.0%, Cr 0.01-0.50%, B 0.001-0.10%, balancing Zn and impurity whose total amount is less than 0.05%.

The invention discloses an industrial preparing method of a water-cooling metal mold centrifugal nodular cast iron pipe. According to the method, pig iron is used, the technologies of molten iron preparing, molten iron nodulizing, centrifugal casting, annealing, shaping and coating are carried out, and then the finished cast iron pipe is obtained. The preparing method is suitable for preparing the high-quality metal mold centrifugal nodular cast iron pipe of DN80-1000 mm. The preparing process comprises a series of operation procedures such as molten iron preparing, molten iron nodulizing, centrifugal casting, annealing, shaping and coating, the preparing technology is simple, the prepared cast iron pipe has the advantages of being high in appearance quality, fine in material structure, high in production efficiency, long in service life and the like, and compared with an existing steel pipe and an existing gray iron pipe, the water-cooling metal mold centrifugal nodular cast iron pipe has better corrosion-resisting performance and tensile performance.

The invention discloses needle-like petroleum coke and a processing process thereof. Raw materials of the needle-like petroleum coke include catalytic cracking clarified oil, heavy coker wax oil and cellulose. Catalytic cracking oil slurry is a heavy product at the bottom of a main fractionating column in FCC equipment, consists of unconverted hydrocarbons the boiling point of which is 383-593 DEGC, and is one of the best raw materials for preparing the needle-like petroleum coke at present, but is limited in amount, and needle-like coke prepared from the catalytic cracking oil slurry cannotmeet market demands. Our research puts emphasis on preparation of needle-like petroleum coke through co-carbonization of two different raw materials. The ratio is reasonable in design, the preparing process is optimized, so that impurity removing and purification of the catalytic cracking oil slurry can be achieved, the catalytic cracking oil slurry can be fully utilized, the yield of needle-likepetroleum coke is increased, and high-quality needle-like petroleum coke is prepared which has a wide application range and which is high in practicability.

The invention relates to a tundish permanent-layer casting material and a preparation method thereof, and belongs to the field of production of refractory materials. The tundish permanent-layer casting material is prepared from the following raw materials by weight: 40-60% of bauxite clinker particles, 10-30% of bauxite clinker fine powder, 5-15% of kyanite powder, 5-10% of alumina micro-powder, 5-15% of flint clay clinker particles, 2-8% of flint clay clinker fine powder, 2-7% of high-temperature cement, 1-5% of silicon micro-powder, 0.1-0.2% of sodium tripolyphosphate and 0.05-0.2% of sodiumhexametaphosphate.

The invention provides a concentrate supplement for dairy cows in a perinatal later period, containing 8% of premix and a preparation method thereof. Per ton of concentrate supplement comprises 80kg of premix in the perinatal later period, 326kg of corn, 40kg of rapeseed meal, 150kg of cottonseed meal, 150kg of wheat bran, 198kg of soybean meal, 26kg of fat powder, 20kg of baking soda and 10kg of magnesium oxide. The concentrate supplement has reasonable design of mixture ratio, is suitable for nutritional needs of the dairy cows in the perinatal later period, is convenient to purchase various component raw materials, convenient to use and easy to popularize, and has high practical values.

An etch resistant aluminium brass alloy relates to the field of metallic material alloying and material corrosion prevention technology, which comprises the components of (by weight percentage) Cu 76.0-79.0%, Al 1.8-2.5%, As 0.02-0.06%, Ti 0.01-0.10%, Ni 0.05-1.0%, Cr 0.01-0.50%, B 0.001-0.10% and balancing Zn and impurity whose total amount is less than 0.05%.

The invention relates to a traditional Chinese medicine composition and preparation for treating proliferative diseases of mammary gland and belongs to the technical field of traditional Chinese medicines. The traditional Chinese medicine composition comprises the following bulk drugs in parts by weight: 10-30 parts of Chinese angelica, 9-27 parts of the root of kudzu vine, 7.5-22.5 parts of the seed of Chinese dodder, 7.5-22.5 parts of the seed of cowherb, 6-18 parts of malt, 6-18 parts of kelp, 7.5-22.5 parts of corydalis tuber and 5-15 parts of ricepaper pith. The invention also relates to an extractive of the traditional Chinese medicine composition treating proliferative diseases of mammary gland. The invention further relates to a traditional Chinese medicine preparation including the extractive of the traditional Chinese medicine composition for treating proliferative diseases of mammary gland and a preparation method of the traditional Chinese medicine preparation which is an oral preparation. The traditional Chinese medicine preparation consists of the extractive of the traditional Chinese medicine composition for treating proliferative diseases of mammary gland and common medicine auxiliary materials of the corresponding dosage form, has the pharmacological function of resisting hyperplasia of mammary gland, resisting inflammation, relieving pain, promoting blood circulation and removing blood stasis without bringing no side effects; and the traditional Chinese medicine preparation can be used for treating female hyperplasia of mammary gland, breast lump and breast distending pain and has low dosage of medication, thereby having good market prospect.

The invention provides regenerated waterproof putty powder and an application method thereof, which belong to the technical field of building materials. The regenerated waterproof putty powder is prepared from the following components in parts by weight: 220 to 350 parts of Portland cement, 400 to 680 parts of waste aerated concrete micro powder, 50 to 150 parts of ash calcium powder, 50 to 150 parts of heavy calcium carbonate powder, 50 to 120 parts of talcum powder, 2 to 7 parts of hydroxypropyl methyl cellulose, 3 to 8 parts of dispersible latex powder, 3 to 7 parts of magnesium aluminum silicate and 2 to 8 parts of dry powder polycarboxylate superplasticizer. Waste aerated concrete micro powder is used as a main filler, heavy calcium carbonate powder and talcum powder are used as secondary fillers, white cement and ash calcium powder are used as main film-forming substances, hydroxypropyl methyl cellulose, dispersible latex powder, magnesium aluminum silicate and a dry powder polycarboxylate superplasticizer are used as functional aids, and the putty powder has the characteristics of good crack resistance, high bonding strength, favorable water resistance and favorable decorative effects.

The invention provides a total mixed ration for dairy cows in a later perinatal period and a preparation method thereof. Each 49kg of total mixed ration contains 12kg of concentrate supplement, 25kg of whole silage, 7kg of alfalfa, 1.5kg of whole cottonseed, 2kg of honey and 3kg of aneurotepidimu chinense. The preparation method of the total mixed ration comprises the following steps: firstly, mixing components of a premix after grinding, grinding the premix and other components, and then fully mixing the ground premix and the other ground components in a mixer, thereby obtaining the concentrate supplement; and mixing the concentrate mixture with the whole silage, the alfalfa and the chinese wildrye again, thereby obtaining the total mixed ration.

The invention relates to the technical field of welding wires, in particular to a self-shielded welding wire and a manufacturing method thereof. Through adding metal fluoride and limiting the carbon content of components of raw material, the spatter loss rate is decreased in the process of welding application, then waste of welding rods in welding treatment is avoided, and the toughness of welding seams is improved; especially, in combination with the reasonable proportion design of the components of the raw material, the welding wire can be applied under any conditions, and the requirement for strength can be met as well; when metal coating experiment treatment is performed at normal temperature or at the high temperature of 600 DEG C, the hardness (HRC) of the welding wire can reach above 60, the tensile strength of the manufactured welding wire reaches above 310 MPa, the elongation after breakage reaches above 41%, the hardness reaches 31 HRB-57 HRB, and the roughness reaches 0.2 micron-0.5 micron.

The invention discloses a processing process of a corrosion-resistant aluminum-magnesium alloy. The corrosion-resistant aluminum-magnesium alloy comprises melt, an additive and a treating agent. Rareearth metal La and alkali metal Be are added to the melt, wherein La and Be can improve the high temperature performance and hot cracking performance of the aluminum-magnesium alloy, the alloy grainsof the aluminum-magnesium alloy can be refined, and the wear resistance of the aluminum-magnesium alloy can be improved. By adding silicon, the fluidity of the aluminum-magnesium alloy can be improved, and the wear resistance of the aluminum-magnesium alloy is improved to a certain degree. Copper and magnesium are adopted as a wild phase to improve the mechanical performance of the aluminum-magnesium alloy. The processing process is reasonable in matching design, technological parameters are optimized, and the strength of an alloy matrix is improved; and meanwhile, the hydrophobicity of a surface film of the alloy matrix is improved, contact of corrosive liquid and the alloy matrix is effectively isolated, the anti-corrosion performance is better, and high practicality is achieved.

The invention relates to an alkali efflorescence inhibition perlite heat insulation plate and a making method thereof. The alkali efflorescence inhibition perlite heat insulation plate is made from the following raw materials: expanded perlite, water glass, a water repellent, an inhibitor, water and an adhesive. The method comprises the following steps: weighing the water glass, the water repellent and water, uniformly mixing the water glass, the water repellent and water, adding the obtained mixture to the expanded perlite, stirring obtained materials until uniformity, pouring the obtained mixture into a die, carrying out compaction molding to make a substrate wet blank, and carrying out microwave drying until constant weight in order to obtain a substrate; and mixing the inhibitor with the adhesive in advance until uniformity to obtain a mixture, spraying water to the surface of the substrate, and uniformly smearing the surface of the pretreated substrate with the mixture. The alkali efflorescence inhibition perlite heat insulation plate made in the invention solves the problem of alkali efflorescence of the surface of perlite heat insulation plates adopting the water glass as an adhesive without increasing the cost, improves the weatherability of the perlite heat insulation plates, improves the beauty of buildings in cities, and avoids accidents caused by spalling of external heat insulation layers of exterior walls.

The invention discloses a high-tensile-strength environment-friendly fiber composite and a processing technology thereof. The high-tensile-strength environment-friendly fiber composite is prepared, and a metal fiber composite is prepared from raw materials including composite fibers and an Al-based alloy; the Al-based alloy has the relatively high specific modulus and specific strength, has the advantages of low expansion coefficient, low heat conductivity and the like and is the most widely used one in metal-matrix composites nowadays; and according to the technical scheme, the composite fibers are prepared by mixing carbon fibers and glass fibers, so that the tensile strength and the ductility of the composite can be improved effectively. According to the high-tensile-strength environment-friendly fiber composite and the processing technology thereof, the ratio design is reasonable, the operation technology is optimized, the fiber composite is prepared, and meanwhile, the tensile strength and the ductility of the composite are improved, so that the problem about the wettability between the composite fibers and the Al-based alloy is solved effectively, and the composite has the relatively high practicability.

The invention discloses a high-temperature-resistant coating based on a new material and a processing technology thereof. In industrial production, a plurality of metal devices which need to work in ahigh-temperature corrosion environment often exist; however, the metal equipment is damaged due to high-temperature corrosion after being used for a period of time; therefore, the invention providesthe high-temperature-resistant coating based on the new material and the processing technology thereof. The high-temperature-resistant coating comprises organic silicon resin and epoxy resin, whereingamma-glycidyl ether propyltrimethoxysilane is used as a compatibilizer to prepare the organic silicon modified epoxy resin. The coating is reasonable in formula design and optimized in process parameters. The process not only realizes the preparation of the high-temperature-resistant coating, but also improves the cohesiveness between the coating and a metal matrix, so that the coating can be well attached to the metal matrix. The coating has excellent high temperature resistance, wear-resistance, aging resistance, corrosion resistance and the like, and has a high application prospect.

The invention provides a traditional Chinese medicine composition for treating primary sicca syndrome and application thereof. The traditional Chinese medicine composition is prepared from, by weight,10-30 parts of radix pseudostellariae, 10-30 parts of radix trichosanthis, 10-20 parts of rhizoma polygonati, 6-15 parts of schisandra chinensis, 8-16 parts of dendrobe and 10-20 parts of rhodiola rosea. The preparation form of the medicine can be capsules, granules, tablets, oral liquid and mixtures. Clinical research verifies that the pharmaceutical composition is safe and effective in treatingthe primary sicca syndrome, and the composition is few in medicine flavor, easy in quality control and low in cost. The scheme can be applied to preparation of a traditional Chinese medicine composition for treating the primary sicca syndrome.

The invention discloses low-radiation coated glass and a processing technology thereof. The coated glass comprises a glass substrate. The surface of the glass substrate is outwards successively provided with a first dielectric layer, a first blocking layer, a functional layer, a second blocking layer, and a second dielectric layer, wherein a preferable scheme is that the first blocking layer and the second blocking layer are a graphene layer, and the first blocking layer and the second blocking layer are 20-35 nm in thickness. The provided low-radiation coated glass is rational in matching design, and simple in technological operation. The low-radiation coated glass is effectively prepared by the processing technology, and a film layer of the coated glass is optimized and improved. Radiance of the coated glass is reduced, and light transmissivity and far-infrared reflectivity thereof are improved. The film layer is better in uniformity and more stable in performance, and service life of the coated glass is improved. The low-radiation coated glass has higher practicability.

The invention discloses a composite modified rubber asphalt mixture. The composite modified rubber asphalt mixture is prepared by the following raw materials by mass: 5-10 parts of waste tyre rubber, 10-15 parts of polyethylene wax, 30-40 parts of petroleum asphalt, 0.02-0.1 part of a thermoplastic resin and 30-45 parts of an aggregate. A preparation method of the composite modified rubber asphalt mixture comprises the steps of preparing improved rubber asphalt by using the waste tyre rubber, the polyethylene wax and the petroleum asphalt according to the above mass proportions under a certain condition; adding the thermoplastic resin to modify the improved rubber asphalt; and finally mixing the modified improved rubber asphalt with the aggregate thoroughly under a certain condition to obtain the composite modified rubber asphalt mixture. The composite modified rubber asphalt mixture is reasonable in proportions, and effectively increases the anti-aging performance, adhesive property and high temperature stability of the improved rubber asphalt. The preparation process is simple in flow, convenient for operations, wide in raw material resources and low in cost, reduces production cost and can be popularized in large scale easily.

The invention discloses an explosive composition and a preparation method thereof and belongs to the field of chemical industry. The explosive composition disclosed by the invention comprises: fuel oil, a throwing agent, ammonium nitrate particles, a cracking agent, an expanding agent and an electrolyte solution; the explosive composition comprises the raw materials in parts by weight: 10 to 20 parts of the fuel oil, 20 to 40 parts of the throwing agent, 20 to 30 parts of the ammonium nitrate particles, 10 to 30 parts of the cracking agent, 20 to 30 parts of the expanding agent and 50 to 70 parts of the electrolyte solution; the explosive composition disclosed by the invention adopts a reasonable proportion design; a combustible agent is selected from a mixture composed of wood charcoal, aluminum powder and magnesium powder; compared with a wood charcoal combustible agent, the aluminum powder and the magnesium powder have high combustion calorific value; compared with an explosive composition in the prior art, the explosive composition generates a relatively great impact wave component force in an explosion process; the explosion strength is ideal, and the explosion performance ofexplosive and solid fuel is stable; and the explosive composition and the preparation method thereof are worthy of being popularized and applied.