33results about How to "Rich in mineral resources" patented technology

The invention discloses a pavement cooling material which is formed by mixing the following raw materials in part by weight: 45-55 parts of film forming matters, 35-45 parts of tourmaline and 4-8 parts of aids. Each film forming matter is prepared by mixing epoxy resin, polyamide curing agent and methanol diluent according to the mass ratio of 1:(0.3-0.5):(0.05-0.2); the tourmaline is tourmaline powder and / or tourmaline negative ion powder; and each aid is prepared by dispersing agent, defoaming agent and flatting agent according to the mass ratio of (0.5-1.5):(0.5-1.5):1. The pavement cooling material has the advantages that the tourmaline is taken as a main raw material, the excellent characteristics of the tourmaline is reasonably utilized, and the material converts heat energy into electric energy and other energies through a energy conversion principle, not only has a remarkable cooling effect, but also is low in cost, simple in process and convenient in construction and has the most prominent advantages of intelligence and environmental friendliness.

The invention discloses a samarium-based amorphous alloy, which is based on samarium as main component with SmaMbAlcCod as component, wherein metal element M is Y, Sc or Nd (40<=a<=55,0<=b<=16,22<=c<=25,20<=d<=22, a+b+c+d=100); the alloy possesses higher glass forming ability and heat stability with glass transition temperature at 541-584K and crystallizing temperature at 590-652K, whose breadth of cool liquid phase area is 49-89K; the alloy is easy to form large-size amorphous alloy with each dimension not less than 1mm, whose critical diameter is not less than 1mm.

The present invention relates to a method of preparing swelling fluor mica by kaolin pigment, which comprises the steps of evenly mixing kaolin pigment of 25~75 wt % with fluorine compounds of 10~35 wt % and magnesium compounds of 15~40 wt%, calcining for 4~12 hours at 850~900 DEG C; wherein the fluorine compounds are Na2SiF6 or NaF, the magnesium compounds are MgO, Mg(OH)2, brucite, MgCO3(including magnesium carbonate basic)or magnesite. The method of the present invention has the advantages of low cost, low temperature, no environment pollution and wide application prospect.

The invention discloses an attapulgite composite glass fiber core material and a preparation method thereof. The core material uses glass fiber as a matrix, and the mass fraction is 60% to 78%. Between the pores of the glass fibers, 15% to 25% of bird's nest nanorod crystal attapulgite, 5% to 10% of layer chain attapulgite aerogel and 2% to 5% of binder are doped. The composite core material of the present invention can effectively utilize the bird's nest microstructure of nano-rod crystal attapulgite and the layer-chain nanofiber structure of attapulgite airgel to optimize the micron-based microstructure of the glass fiber core material. By adjusting the pore classification and pore size of the glass fiber core material, the structural stability and thermal insulation performance are improved, while the air pressure sensitivity is reduced, and the service life of the vacuum insulation panel is prolonged. In addition, the nano-rod attapulgite has excellent properties such as corrosion resistance, high temperature resistance and environmental protection, so that the composite core material can be used at higher temperatures.

The invention discloses a preparation method of a gunning mix for kiln repair. The preparation method comprises the following steps in sequence: breaking dead burnt magnesia into large dead burnt magnesia particles; grinding the large dead burnt magnesia particles into small dead burnt magnesia particles; grinding part of the small dead burnt magnesia particles into dead burnt magnesia fine powder with a particle size of 0.088mm; breaking forsterite into large forsterite particles; grinding the large forsterite particles into small forsterite particles with particle sizes of 0.1-3mm; weighting borax, inorganic salt, sodium tripolyphosphate and sodium hexametaphosphate, premixing the materials and conveying the materials to a mixing system after premixing; screening the materials according to the difference of particle sizes; filling the small particles and the micro powder into a mixing system tank and conveying the materials to the mixing system after the materials are mixed; stirring dead burnt magnesia, forsterite, borax, inorganic salt, sodium tripolyphosphate and sodium hexametaphosphate in the mixing system simultaneously and then subpackaging the product, thus obtaining a finished product of the gunning mix. The preparation method has the beneficial effects that the formula is simple, thus reducing the inventory costs of the raw materials; the prepared product has a high adhesive rate, thus lowering the production cost.

The invention provides modified bituminous concrete with a self-regulating temperature function. The modified bituminous concrete is prepared from the following raw materials in parts by weight: 100 parts of mineral aggregate, 3-7 parts of asphalt, 0.2-2.4 parts of sepiolite powder, 0.1-2.0 parts of palygorskite powder, and 0.01-0.06 part of coupling agent, wherein the coupling agent is a titanate coupling agent or an aluminate coupling agent; the aggregate grading type of the mineral aggregate is AM-13, GAC-13, AC-13, SMA-13 or OGFC-13. According to the modified bituminous concrete provided by the invention, excellent characteristics of sepiolite and palygorskite are reasonably utilized; the usability of a bituminous concrete pavement can be effectively improved; the temperature of the bituminous concrete pavement can be reduced under a high-temperature condition; a track disease is reduced; the bituminous concrete pavement can keep high temperature to resist a low-temperature disease under a low-temperature condition.

The invention provides modified asphalt with high ultraviolet aging resistance, made from the following materials in percent by weight: 74.8-76.9% of base asphalt, 9.8-13.6% of obsidian, 5.2-7.6% of bauxite, 3.0-4.0% of hydrogenated castor oil, and 2.0-3.2% of aluminum-zirconium coupler, adding up to 100%. Mass researches and experiments show that the modified asphalt produced herein is applied to paving of asphalt pavements and may significantly improve ultraviolet aging resistance of a pavement, reduce cracking speed of active groups, inhibit aging action of ultraviolet upon asphalt to maintain its pavement performance, prevent cracking of the asphalt pavement due to crisping and hardening in later stage, and prolong the maintenance cycle and life of the pavement.

The invention discloses a preparation method of a large-area material for converter fettling, which adopts regenerated magnesia carbon bricks, regenerated silicon carbide and high-iron magnesia as main raw materials, and prepares the material by crushing and sieving regenerated magnesia carbon bricks, regenerated silicon carbide and high-iron magnesia, adding high temperature asphalt, urotropine and caprolactam, and fully stirring. When used in converter equipment, the large-area material for converter fettling prepared by the formula has the advantages of high adhesive rate, good anti-stripping performance, high sintering speed, erosion resistance, scouring resistance, and low high temperature expansion, and has an adhesive rate of more than 95%. The raw material of magnesia is rich in ore resources; the auxiliary raw materials are available everywhere; the formula is simple; the raw material stock-holding cost is decreased; the high adhesive rate of the product not only realizes the reduction of production cost, but also reduces adverse influence of residues on molten steel. Meanwhile, the work intensity is decreased; the construction progress is accelerated; the fettling time is shortened; the furnace service life is prolonged; and the consumption of refractory materials is reduced.

The invention relates to a holmium radical bulk non-crystal body alloy that the expression is HoaMbAlcCodTe, and 30 greater than or equal to a greater than or equal to 56, 0 greater than or equal to b greater than or equal to 26, 22 greater than or equal to c greater than or equal to 25, 20 greater than or equal to d greater than or equal to 23, 0 greater than or equal to e greater than or equal to 25, and a+b+c+d+e=100, M is Zr or / and Y, element T is Fe, Ni, Nb, Pd, Mo, Hf, Ta, or rare earth Ce, Tb, Dy, Gd, Er, and Sm. The alloy is made up from mixing the elements with purity over 99.9wt% according to the ratio, and taking multi times melting to gain mother alloy ingot bar, and re-melting the mother alloy, using casting adsorbing device in arc furnace to adsorb the melt into water cooledcopper mould. The invention has low critical cooling speed, strong anti oxygen ability, and strong anti crystallizing ability. It is easy to make and low cost, and has high thermal stability.

The invention relates to a copper-zirconium-based amorphous alloy, which is mainly composed of copper and zirconium, and whose composition is expressed by the following formula: (Cu1-xZrx)aAlbMc, wherein, 0.40≤x≤ 0.60, 80≤a≤100, 0≤b≤14, 0≤c≤20, and a+b+c=100; metal element M is Y, La, Ce, Pr, Nd, Gd, Tb, Dy, Ho , Er, Ti, Ag, Ga, Hf, Ta, Nb, Ni, Co, or Fe. The preparation of the alloy is to mix the above-mentioned components Cu, Zr, Al and M according to the required atomic ratio in an electric arc furnace with an argon atmosphere adsorbed by titanium, and then melt and cool to obtain a master alloy ingot; then use conventional The metal mold casting method is to remelt the master alloy ingot in the air and cast it in a water-cooled metal mold to obtain the alloy. The alloy has high glass-forming ability, strong ability to inhibit crystallization, and can be made into larger sizes at very low cooling rates.