35 results about "Rare earth" patented technology

The present invention relates to a method for resisting high-temp. oxidation and thermal corrosion for high temp. alloy, and is characterized by that firstly, a McRAlY coating layer whose thickness is 10-100 micrometers is made on the surface of high-temp. alloy base body, in which M is selected from Ni, Co, or NiCo; then and enamel coating layer whose thickness is 20-100 micrometers is fired on the surface of MCrAl Y coating layer, in which the composition of the enamel coating layer includes (wt%) SiO2 55-63, Al2O3 3.4-9.7, ZrO2 3-6, ZnO 8-12, B2O3 3-10, CaO 3-6, Na2O 3-4, rare earth RuO, CeO and Y2O3 1-2 and the rest is MgO, NiO and CoO.

A deformable Al-Mn alloy contains Si (0-0.6%), Fe (0-0.7%), Cu (0-0.3%), Mn (0.3-1.6%), Mg (0-1.3%), Ti (0.005-0.15%), RE (0-0.4%), B (0-0.03%), impurities (0-0.7%) and Al (rest). Its preparing process includes such steps as smelting fine-crystal Al ingot, adding others, smelting Al-Mn alloy, and pressure machining.

The invention relates to an ecological slope protection structure for an ion rare earth mine. The ecological slope protection structure is characterized in that bamboo frames are distributed on an inclined slope surface of a side slope and are pressed into soil; each bamboo frame is prepared from bamboo frame strips in longitudinal and horizontal directions through fixing together, and the bamboo frame strips with upward concave surfaces are distributed on the inclined slope surface of the side slope; through holes are formed in the bamboo frame strips, and drain pipes are distributed at the through holes and inserted into the soil of the inclined slope surface of the side slope; slope base drainage ditches are distributed at the bottom of the inclined slope surface of the side slope, and side drainage ditches are distributed on the upper, left and right edges of the inclined slope surface of the side slope and communicate with the slope base drainage ditches; trees are planted on the step-slope leveled land; bamboo piles are beaten into the inclined slope surface of the side slope, the slope base and the step-slope leveled land respectively; a first section of bamboo joint is reserved at the upper part of each bamboo pile, an ecological planting bag is arranged in the bamboo pile above the first section of bamboo joint, and water seepage holes are formed in the bamboo pile walls; each ecological planting bag is formed by wrapping a grass seed base material into geotechnical cloth. The ecological slope protection structure can be used for preventing and controlling side slope landslide, is low in construction cost, and realizes ecological and environmental protection.

A fluorescent image-printed article including a substrate, and an image formed on the substrate, wherein the image is formed from a fluorescent ink containing a binder, and a fluorescent substance which is dispersed in the binder, is capable of emitting fluorescence when irradiated with ultraviolet rays, and is substantially transparent to visible light, the fluorescent substance being formed of a rare earth complex containing, as a ligand, a compound represented by the following formula (1):

The invention provides an alloying component and a preparation method thereof. The alloying component takes high-entropy alloy as a matrix, and uses a carbon nano tube and rare earth nano particles asreinforcements, wherein the expression of the atomic percent of the high-entropy alloy is LxMyNz(Fe2/3Nb1/6Ta1/6)100-x-y-z; L comprises at least one of B, Mg, Al, Si, Sr, Ga, Ge, Sn, Sb and Bi; M comprises at least one of Cu, Co, Cr, Ni, Mn, Ag, Zn, V, Ti, Zr, Mo, Hf and W; N comprises at least one of Er, Y, Sc, Nd, Dy, Tm and Gd; and x is larger than or equal to 0 and smaller than 100, y is larger than or equal to 0 and smaller than 45, z is larger than or equal to 0 and smaller than 10, and the sum of x+y+z is larger than or equal to 0 and smaller than 100. The invention can provide the alloying component which refines grains to enables material compositions to be distributed more uniformly, and improves the grain boundary performance and the grain boundary corrosion resistance and thepreparation method of the alloying component.

The present invention relates to a preparation method of low-temperature light radiation, which is used for preparing a ferroelectric film of bismuth titanate doped with rare earth. The method solves the problems of the ferroelectric film of bismuth titanate prepared with the existing methods, such as the poor anti-fatigue properties, the small value of remanent polarization, the low reliability of storage, and the excessively high temperature of crystallization in the crystallization process and so on. The preparation method comprises the following two steps: preparing precursory sol of bismuth titanate doped with rare earth and molding the precursory sol. The ferroelectric film prepared in the method has excellent anti-fatigue properties, higher intensity of polarization, higher reliability of storage, and lower temperature of crystallization. The preparation method has the advantages of simple process, simple equipment, short preparation cycle, cheap raw materials that can be purchased in the market, and low cost.

The invention relates to a tungsten-base composite material applied to ray shielding and a preparation method thereof. The tungsten-base composite material comprises the following components in parts by weight: 100 parts of rubber, 200-2000 parts of tungsten powder, 0.5-50 parts of tungsten fiber, 0.5-150 parts of barite powder and/or 0.5-250 parts of rare-earth oxide powder, 0.5-6 parts of compatilizer, 3-9 parts of activator, 0.5-50 parts of plasticizer, 0.5-3 parts of anti-aging agent, 0.05-0.5 part of anti-scorching agent, 0.5-3 parts of vulcanization accelerator and 0.5-3 parts of vulcanizing agent. The preparation method comprises the following steps: (1) proportioning and preparation of raw materials; (2) preparation of mixed filler; (3) mixing of rubber matrix; (4) extrusion and calendering; and (5) vulcanization molding and the like. The composite material is free of lead, and has the advantages of favorable ray shielding performance, favorable physical and mechanical properties and the like.

The invention discloses a magnetic bioreaction separation device for treating organic wastewater, which comprises a magnetic bioreactor and a rare-earth magnetic disc separation device, wherein the magnetic bioreactor consists of a reaction vessel, and microbe carrier magnetic species or magnetic zooglea formed by the microbe carrier magnetic species, which is placed in the reaction vessel; the magnetic bioreactor is connected with the rare-earth magnetic disc separation device by a flowing discharge pipeline; and the upper part of the rare-earth magnetic disc separation device is provided with a water outlet pipe, and the lower part thereof is provided with a sludge discharge valve. Since the invention utilizes the microbes attached to the microbe carrier magnetic species or magnetic zooglea to decompose the organic matter, while the magnetic zooglea and the treated water can be treated by the rare-earth magnetic disc separation device for solid-liquid separation, not only the cost on the investment and operation is lower than that of the membrane bioreactor, but also the separation efficiency is high, the energy consumption is low, and the effect on denitrification, phosphorous, SS, COD and BOD removal; and the invention is particularly suitable for treating the organic wastewater with large flow and high concentration.

The invention provides an aluminum profile chromate-free passivation agent. The chromate-free passivation treatment agent includes, by weight percent, one or more of hexafluorozirconic acid, hexafluorotitanic acid, zirconium tetrafluoride, potassium fluozirconate and fluosilicic acid, water soluble phenolic resin, carboxymethyl cellulose, a silane coupling agent, sodium nitrate, an alkaline adjusting agent, a rare earth additive, an auxiliary and deionized water. The auxiliary is one or more of a stabilizing agent, a pH adjusting agent, a thickening agent, a leveling agent, a coalescing agent, a wetting agent and an antioxidant. The metal surface treatment agent is used for treating a metal product, the antirust performance of the product can be obviously improved, especially, the surfaces of aluminum and aluminum alloy products can be treated.

The invention discloses a preparation method of a thiourea dioxide low-temperature reduction clearing catalyst for disperse dyes and a reduction clearing method. The thiourea dioxide low-temperature reduction clearing catalyst is obtained by complexing rare-earth chlorides and colorless nitroaromatic compounds of a relatively simple structure according to a certain molar ratio. Dacron fabrics dyedby the disperse dyes are subjected to reduction clearing through a solution prepared from thiourea dioxides, a catalyst and an alkaline agent, and the reduction clearing of the dacron fabrics dyed bythe disperse dyes is achieved under a low-temperature condition. The low-temperature reduction clearing of the dacron fabrics dyed by the disperse dyes is achieved, the reduction clearing temperatureis lowered, energy consumption is saved, the production efficiency is improved, and the dyefastness of the dacron fabrics after reduction clearing is very excellent.

The invention relates to a zinc alloy for steel component galvanizing, the ingot shape and the method. The comprised component and weight proportion are as follows: 0.008%-0.012%(wt)Al,0.02%-0.08%(wt)Bi, 0.006%-0.01%(wt)RE, the rest is zinc and unavoidable impurities. The ingot shape is'T'cuboid with two symmetrical ear-warps, the bottom of cuboid is plane, ear-warps are equipped with hoisting holes, and the four sides are inclined plane which is narrow-end-up shape. It is characterized by direct fusion of said alloy to zinc bath, simple utilization, stable and homogeneous aluminium, bismuth and rare earth content in zinc alloy, improved coating brightness and zinc flowability, decreased coating thickness, and saved zinc plating cost. The proper zinc alloy ingot shape and weight meets the demand of zinc addition for large-capacity galvanizing equipment, and it is convenient for hoisting and cross transportation, specific surface area is small, which is suitable for multi-layer stacking storage.

The invention discloses a postoperative incision patch, the bottom layer thereof is adhesive cloth (1), a water absorption pad (2) is arranged on the surface of the adhesive cloth (1), one surface of the water absorption pad (2) is connected with the adhesive cloth (1), a permanent magnetic disk (3) is arranged on the other surface, the permanent magnetic disk (3) is the rare earth magnetic disk, trace elements for promoting the wound healing are arranged on the surface of the rare earth magnetic disk, the trace elements comprise iron element, boron element and neodymium element, wherein, the neodymium element accounts for 33 to 35 percent, the boron element accounts for 1 to 1.5 percent and the iron element accounts for 64 to 65 percent; a spunlaced nonwoven fabric layer (5) is covered on the permanent magnetic disk (3), a surface layer (6) is covered on the spunlaced nonwoven fabric layer (5), an anti-adhesion film (4) is covered on the surface layer (6), and the both sides of the spunlaced nonwoven fabric layer (5), the both sides of the surface layer (6) and the both sides of the anti-adhesion film (4) are connected with the adhesive cloth (1). The postoperative incision patch can not only promote the wound healing, but can also have the effects of alleviating pain and reducing the scar formation.

The invention discloses a composite high-strength Nixing pottery material which is characterized by comprising, by weight, 3-6 parts of east mud, 3-6 parts of west mud, 2-3 parts of clinker after calcination of Nixing potteries, 5-9 parts of zinc oxide, 0.3-0.6 part of serpentine, 0.6-0.8 part of spodumene, 4-7 parts of fine silicon carbide powder and 2-4 parts of tungsten molybdenum rare earth alloy powder. Silicon carbide is added into the Nixing pottery material, so that a forged green body has high hardness, thermal shock resistance and an excellent heat conductivity coefficient, smaller heat stress is applied onto the green body in the heating or cooling process, and the green body has excellent abrasion resistance by a sprayed tungsten molybdenum rare earth alloy.

The invention discloses a smelting method for rare-earth microalloyed steel. The smelting method can be used for smelting the rare-earth microalloyed steel. By controlling the temperature, the vacuumdegree and the contents of sulfur, rare earth, oxygen, aluminum and phosphorus, high-precision and high-purity steel which is low in content of impurities and satisfies production requirements is obtained through twice smelting. In a smelting process, original vanadium (niobium, chromium, molybdenum and titanium) alloying elements in molten iron are effectively prevented from being oxidized and burnt, so that follow-up addition of vanadium (niobium, chromium, molybdenum and titanium) is reduced. Besides, the contents of sulfur, phosphorus, oxygen and aluminum in molten iron are reduced beforeadding of rare earth alloy, so that the amount of rare earth alloy which is oxidized and vulcanized is reduced, and the addition of rare earth alloy in steel is effectively reduced. Meanwhile, formation of aluminic acid rare earth, phosphoric acid rare earth or phosphoric rare earth occluded foreign substances is reduced, so that the quality of an end product is improved. By adoption of the smelting method, the smelting cost is lowered, and beneficial effects in smelting rare earth containing vanadium (niobium, vanadium, chromium, molybdenum and titanium) steel are improved.

The invention relates to a degradable capacitor plastic shell which is composed of the following components in parts by weight: 35 parts of polyvinyl alcohol resin, 15 parts of gelatin, 10 parts of methyl-silicone rubber, 5 parts of hyaluronic acid, 5 parts of tribasic lead sulfate, 5 parts of nano silicon dioxide, 5 parts of modified wood-plastic powder, 2 parts of chlorinated paraffin, 2 parts of propanediol, 2 parts of palm oil, 5 parts of carbon fiber, 5 parts of metallocene polyethylene, 2 parts of methylsilicone oil, 0.5 part of tobacco cellulose, 2 parts of plasticizer, 2 parts of oxidized polyethylene, 2 parts of dioctyl adipate, 2 parts of rare-earth light conversion agent, 2 parts of cotton fiber, 2 parts of corn starch, 2 parts of polyester rubber powder, 2 parts of butyl acetate and 2 parts of talcum powder. The method has the advantages of simple components and low cost; the finished product is degradable, has stable performance, and does not have toxicity or harm in a high-temperature environment; and meanwhile, by changing the traditional preparation technique and adding the refrigeration procedure, the product has higher safety and still has favorable stability at higher temperature.

The invention discloses a composite material for enhancing the photoluminescence of rare earth Er ions and a preparation method thereof. The composite material comprises an Er doped ferroelectric material and ZnO. The chemical formula of the Er doped ferroelectric material is xEr:0.94Bi<0.5>Na<0.5>TiO<3-0.06>BaTiO<3> (xEr:BNTBT for short), wherein x is the mole ratio of Er to BNTBT and is 0.0050, 0.0075, or 0.0100; and the mole ratio of ZnO to the Er doped ferroelectric material is 0.1, 0.2, 0.3, or 0.4. By doping rare earth Er ions into a ferroelectric material and further forming a composite material from the Er ion doped ferroelectric material and ZnO, the prominently enhanced photoluminescence of Er ions can be observed under the laser irradiation. Compared with other conventional methods, the provided composite material can prominently enhance the photoluminescence of rare earth Er ions.

The invention discloses chemical pump inner cavity insulated oil paint, and relates to the technical field of pump valve preparation. The chemical pump inner cavity insulated oil paint is prepared from the following raw materials in parts by weight: 50-60 parts of chlorinated rubber resin, 25-35 parts of butadiene styrene rubber resin, 30-40 parts of fluorocarbon resin, 6-8 parts of pentaerythritol, 3-5 parts of tall oil acid, 6-8 parts of castor oil, 10-20 parts of polyphenylene sulfide, 5-7 parts of polymerized rosin, 3-5 parts of sepiolite powder, 5-7 parts of wollastonite powder, 6-8 parts of epoxy linseed oil, 3-5 parts of sodium pyrophosphate, 6-8 parts of copper oxide powder, 3-5 parts of nanometer titania, 6-8 parts of kaolin, 5-7 parts of glass fiber, 6-8 parts of rare earth chloride, 20-30 parts of modified asphalt and 120-130 parts of water. The chemical pump inner cavity insulated oil paint has the beneficial effects that the prepared oil paint has excellent insulating property, the insulating property between a chemical pump body and a fluid can be effectively protected, normal operation of a chemical pump is guaranteed, and the service life of the chemical pump is prolonged.

The invention provides a high-strength rare-earth protein adhesive and a preparation method thereof. The high-strength rare-earth protein adhesive is prepared from a super positive charge protein andan anionic surfactant, wherein the anionic surfactant has a catechol structure. The super positive charge protein is adopted as a main component and is matched with the anionic surfactant with the catechol structure, the super positive charge protein and the anionic surfactant form a compound under an electrostatic action, metal ions can be further added to be chelated with the protein, the metalions are doped to form a complex under a non-covalent bond action, and thus the adhesiveness of the adhesive can be improved. Experiment results show that the rare-earth protein adhesive has excellentadhesiveness under different conditions (dry samples, wet samples and animal cuticles). In addition, the adhesive is simple in preparation process, needs no special equipment, is low in cost and is green and environment-friendly. Compared with the prior art, the adhesive has good biocompatibility and degradability.

The invention discloses a cold-proof double swing and a processing process thereof. The cold-proof double swing comprises a bearing beam and two single swings. The single swings are hung on the bearing beam, and the bearing beam comprises, by mass, 0.01-0.02% of Cr, 0.7-0.9% of Al, 1-3% OF Si, 0.05-0.08% of O, 0.11-0.12% of C, 1-3% of Si, 0.2-0.4% of Co, 0.0025-0.0030% of P, 0.002-0.003% of S, 0.1-0.3% of Mn, 0.4-0.5% of Ti, 0.002-0.004% of V, 0.1-0.3% of Cu, 0.001-0.003% of Nb, 0.04-0.05% of B, 0.01-0.02% of Mo, 0.2-0.4% of composite rare earth and the balance Fe and inevitable impurities, wherein the sum of mass percents of all components is 100%. The processing process is simple and feasible, the double wing is excellent in cold resistance, the service life can be prolonged, and cost reduction is realized.

Fire ion detector (ZVD) is made of natural quartz, rare earth, yttrium, iridium, ruthenium, calcium, zirconium, iridium, titanium, nickel, palladium, platinum, manganese, etc. detectors of different specifications. A is the tube wall, A1, A2, G is the electrode coating, A3 is the electronic chamber particle and electronic area; B is the temperature sensor; C is the quartz body; D is the air duct; E is the insulation layer; F is the heating resistance layer ; G electron oscillation area; G1 jet port electron emission area; LI, L2 are heating power supply terminals; M is constant temperature electronic block; H1, H3 are signal output terminals; H2 polarized pole; J is air inlet; Composition, stable work and high precision. It can detect trace amounts of hydrogen and organic gases, etc., and the detection limit can be as low as 0.1ppb. It is suitable for the analysis of environmental protection, gas, chemical, nuclear energy and other industries. The detector does not need combustion gas and combustion-supporting gas, and the carrier gas can be nitrogen or inert gas.

The invention discloses a nodular cast iron valve. The valve comprises, by mass, 0.15-0.18% of C, 0.5-0.7% of Mn, 0.20-0.22% of Si, 0.080-0.095% of Cr, 0.30-0.32% of V, 0.1-0.2% of Ti, 0.12-0.14% of Ni, 0.25-0.39% of Mo, 0.06-0.08% of Sn, 0.25-0.27% of Zr, less than or equal to 0.025% of S, less than or equal to 0.025% of P, 0.02-0.05% of lanthanide series rare earth and the balance waste, whereinthe percentage sum of the above components is 100%. The invention further designs a casting process of the nodular cast iron valve. The process is simple and easy to implement and low in cost, and the valve cast through the process is excellent in performance and has good corrosion resistance.

A high-temperature-resistant wear-resistant compound resin material table surface is characterized by comprising the following raw materials in parts by weight: 20-25 parts of high-temperature-resistant unsaturated resin, 200-210 parts of inorganic raw materials added with a functional modifier, and 0.05-0.1 part of rare earth oxide, wherein the inorganic raw materials comprise quartz sand of which the particle diameter is less than 5 mm, 150-200-mesh diatomite and 350-mesh silica powder; the functional modifier is a mixture of mono-alkoxyl titanate coupling agent, polytetrafluoroethylene and tert-Butylperoxy 2-ethylhexyl carbonate; the additive amount of the functional modifier is 0.4-0.7% of the weight of the inorganic raw materials. The adopted high-temperature-resistant unsaturated resin is better improved in high temperature resistance as compared with the unsaturated resin in the prior art, the high-wear-resistant functional modifier and the rare earth oxide are adopted to conduct wear-resistant and high-temperature-resistant modification on the compound resin material table surface, the high temperature resistance of the material is improved, and the product has better wear resistance.

The invention relates to a filter material used for sewage treatment and particularly relates to a high-efficient composite filter material prepared by blending melt-blown polypropylene with modified pseudo-boehmite and used for sewage treatment and a preparation method thereof. The filter material is prepared from following raw materials, by weight: 1-2 parts of manganese sand in 200-300 meshes, 15-18 parts of micro powder of pseudo-boehmite in 200-300 meshes, 30-35 parts of polypropylene, 1-2 parts of a titanate coupling agent, 0.4-0.5 parts of sodium lignin sulfonate, 1-2 parts of polyether-modified silicone oil, 8-10 parts of nano bamboo charcoal powder, 1-2 parts of yttrium sol being 8-10% in solid content, 0.01-0.02 parts of lanthanum-series rare earth salt and 30-40 parts of water. In the invention, the modified pseudo-boehmite-based composite micro powder is supported onto the modified polypropylene master batch melt-blown filaments to prepare the filter material having a stereoscopic network structure. The filter material is excellent in purification effect, is stable and high-efficient in performances, is changeable in shape, is not liable to damage and can be used repeatedly.

The invention discloses a preparation method of a graphene oxide and rare earth complex composite ultraviolet enhancement film. According to the method, a rare earth complex fluorescent material withthe absorption waveband of 240-400 nm and a PVA polymer are mixed in an ethanol aqueous solution, the efficient ultraviolet enhancement film is prepared, and a corresponding film enhanced CCD is prepared. On the basis, the ultraviolet enhancement film prepared through the method has wide application prospects in photoelectric detection, especially in ultraviolet detection.