395results about How to "Increase the amount of participation" patented technology

The present invention provides a magnetic powder core, composite powder used for the magnetic powder core, and a production method for the both. The composite powder is blended and formed by powder A and powder B, the content of which comprises 50-96wt percent of the powder A and 4-50wt percent of the powder B; wherein, the powder A is one out of iron powder, Fe-Si powder, Fe-Si-Al powder, Fe-based nanometer crystal powder, Fe-base amorphous powder, Fe-Ni powder and Fe-Ni-Mo powder; the powder B has different demand characteristics compared with the powder A and is selected from at least one out of iron powder, Fe-Si powder, Fe-Si-Al powder, Fe-based nanometer crystal powder, Fe-based amorphous powder, Fe-Ni powder and Fe-Ni-Mo powder. The powder B can be Fe-based soft magnetic amorphous powder as the insulating agent, which can reduce the wastage of magnetic powder core and make up for the declining magnetic conductivity of magnetic powder core caused by the traditional insulating agent. The excellent of soft magnetic properties of the insulating agent is utilized to improve frequency features of the magnetic powder core.

The invention discloses a bottom surface-integrated wear-resistant fluorosilicone-based super-amphiphobic coating, and a preparation method and application thereof. The preparation method comprises the following steps: 1) performing synergistic modification treatment on two or more nanoparticles to obtain modified blended particles; 2) adding the blended modified particles into a dispersing solvent, performing ultrasonic dispersion for 1 to 2 hours and then mechanically stirring; 3) adding a certain amount of tert-butyl acetate into fluoro-siloxane resin and performing shearing dispersion to obtain substrate material emulsion; 4) mixing the blended modified particle turbid liquid in the step 2 and the substrate material emulsion in the step 3, adding a coupling agent, heating, stirring anddispersing, and performing dispersion by a high-speed shearing dispersing machine to obtain super-amphiphobic coating; and 5) stirring the super-amphiphobic coating uniformly, spray-coating the surface of an object with the super-amphiphobic coating and drying at room temperature for 10 to 30 minutes to successfully prepare the wear-resistant integrated super-amphiphobic coating. The wear-resistant super-amphiphobic organic-inorganic hybrid coating is obtained by connecting a fluorine-silicon substrate and the blended modified particles through chemical grafting copolymerization reaction.

The invention discloses a non-steamed brick and a preparation method thereof. The non-steamed brick comprises the following components in percentage by weight: 60 to 85 percent of iron tailings, 5 to 18 percent of river sand, 8 to 20 percent of cement, and 0.5 to 3 percent of admixture, wherein the admixture is one or more of high-strength adhesive, water reducing agent and waterproof agent. The preparation method comprises the steps of proportioning, mixing, pressure molding and natural curing. Proved by practice, the non-steamed brick has simple component, low cost and excellent comprehensive performance; and the preparation method is mild in conditions and easy in operation.

The invention provides a graphene-modified conductive silver paste and a preparation method thereof. The graphene-modified conductive silver paste mainly comprises silver nanowires, graphene materials, a binder and a solvent. The graphene materials comprise one or a combination of at least two materials selected from graphene, a graphene nanosheet, biomass graphene or graphene oxide. According to the technical scheme of the invention, the silver nanowires and the graphene materials are adopted together as an electrically conductive agent, and the silver nanowires are filled into gaps among graphene material sheet layers. Therefore, the graphene material sheet layers are connected in series through the silver nanowires, and the above two parts play a synergistic effect to realize the conductive performance. Meanwhile, the graphene materials are covered on the surfaces of the silver nanowires, so that the oxidation of the silver nanowires is avoided. The system stability and the stable exertion of the conductive performance are better ensured. Moreover, by means of the binder and other components, the adhesive force of the system is improved obviously. The printability of the conductive silver paste is improved.

The invention discloses a method for preparing microcrystalline glass from kaolin-type coal gangue or fly ash and carbide slag. The method comprises the following steps of: (1) pre-treatment of raw materials: the coal gangue needs to be sequentially subjected to carbon removal and iron removal, the fly ash can be directly subjected to iron removal, and the carbide slag needs to be subjected to graphite electrode chip removal; (2) material proportioning: the refractory coarse slag obtained after burning the coal gangue needs to be added in the proportioned materials; (3) melting: melting is performed in a low-temperature range, a part of unmelted mass points is reserved, and air bubbles in melted solution are eliminated; (4) forming: forming is performed by adopting a calendaring method, a pouring method or a sintering method; and (5) heat treatment: a microcrystalline glass blank is obtained via heat treatment, and the finished product is obtained after finish machining. According to the invention, wastes such as the kaolin-type coal gangue or the fly ash and the carbide slag can be abundantly used for producing high-performance microcrystalline glass containing granular patterns, which is similar to natural stone, and even similar to natural jade.

A preparation method for wet acrylic fiber is characterized by including the following steps in turn: a, spinning and shaping; b, washing and drafting; c, oiling; d, drying; e, winding; f, shaping. Furthermore, compared with the prior art, the invention makes improvement on the shaping technique and post treatment technique through the specific design of a silk spray plate and selects proper spinning, shaping and post treatment condition technique parameters through a plurality of tests to improve the coagulation bath circulation amount, improve the adding amount and the drafting times of an oil agent and improve the winding door pressure. The acrylic fiber manufactured by the invention improves the shaping effect of the fiber.

A polyurethane polymer comprising 35 to 90 wt% of a poly(C2-4 alkylene oxide) based on the total weight of the polymer, wherein not less than 60% of the poly(C2-4 alkylene oxide) is poly Ethylene oxide, wherein at least 5% of the poly(C2-4 alkylene oxide) is bound to side chains based on the total weight of the polymer, and when the polyurethane contains 35 to 45% by weight of poly(C2-4 alkylene Oxygenation) such as by making di(hydroxymethyl)propionic acid, cyclohexanedimethanol, polypropylene glycol (1000), N-methylpyrrolidone and a Diol (750) and diethanolamine obtained α, α-dihydroxypolyethylene glycol reaction to produce a polymer, per 100g polymer contains 10 to 180 milliequivalents (meq) of acid groups.

The invention relates to a smelting technology method of a steel technological process and specifically relates to a method based on high-silicon high-phosphorus molten iron converter low slag material consumption to melt low-phosphorus steel. The method comprises the following steps: utilizing single-slag operation under the conditions that Si of molten iron putting into a furnace is larger thanor equal to 0.55% and smaller than or equal to 0.8% and P of molten iron putting into the furnace is larger than or equal to 0.17% and smaller than or equal to 0.22%; making a molten iron temperaturelarger than 1250 DEG C and a scrap steel ratio larger than 25%; utilizing a less-slag material, adding the less-slag material into a melting model and controlling the adding amount of an auxiliary material. When Si of general molten iron putting into the furnace is larger than or equal to 0.6% or P of the general molten iron putting into the furnace is larger than or equal to 0.12%, a duplexing method or a double-slag method is utilized by a converter. Under the situations of molten-iron-free three-removal pretreatment and converter duplexing method dephosphorization, operation of the method disclosed by the invention utilizes a single-slag method; under the premises that converter lime consumption is smaller than 40kg/t and a new slag material consuming total amount is smaller than 70kg/t, the condition that P is smaller than 0.012% when a smelting point C is larger than or equal to 0.065% is ensured at the same time. The method disclosed by the invention can effectively reduce novelslag material consumption of high-silicon high-phosphorus molten iron converter smelting, is favorable for reducing industrial waste generation and reduces production cost of per ton of steel.

The invention discloses a transparent reinforced filling mother stock which comprises the following materials in weight percentage: 10 to 25 percent of polythene, 65 to 85 percent of transparent glass powder, 3 to 7 percent of polyethylene wax and 1-3 percent of aluminic acid ester. The polythene is the low-density or linear low-density polythene, and the transparent glass powder is a nonmetal silicate. The transparent reinforced filling mother stock which has a higher addition level can reduce the contractibility of plastics and the deformation caused by contraction; the transparent reinforced filling mother stock can not only reinforce the rigidity of products but also increase the weight of the products. The filling mother stock has good dispersibility and good solubility with polypropylene and polyethylene. Even a great amount of filler stock is added, the products with good outside fineness can still be obtained. The filling mother stock can not only make the products keep good mechanical properties, but also prolong the service life of the products.

The present invention provides modified heavy calcium carbonate for a fire retardation electric cable material. The modified heavy calcium carbonate is prepared from the following raw material components, by weight: 95-100 parts of calcium carbonate, 1-2 parts of octylphenol polyoxyethylene ether, 0.2-0.3 part of peregal O, 1-1.5 parts of dioctyl maleate, 0.2-0.4 part of zinc stearate, 0.1-0.2 part of magnesium oxide, 0.1-0.3 part of polyethylene wax, 0.1-0.4 part of an ultraviolet absorber UV-P, 1-2 parts of chitosan, 1-1.5 parts of polyphosphoric acid, and 2-3 parts of methyltriethoxysilane. The preparation method comprises: drying calcium carbonate, adding other raw materials according to the ratio, completely mixing in a high speed stirrer, and carrying out drying and grinding to obtain the finished product. The obtained modified calcium carbonate has characteristics of good dispersity and good ultraviolet resistance, and can be used for fire retardation electric cable materials so as to reduce cost and improve various processing performances of the electric cable material.

The invention provides a rotary furnace cooling agent and a manufacturing method thereof. The cooling agent is a carbonic and ferreous conglomeration which mainly takes iron scale, carbonic waste material and ferreous waste material as raw materials, and prepared by additionally adding caking agent into the raw materials. The weight percentage of the main chemical compositions of the cooling agent meets the following condition: the carbon content is 5-25%, the content of TFe is more than or equal to 50%, the content of S is less than or equal to 0.50% and the content of P is less than or equal to 0.50%. The manufacturing method comprises: the wet materials in the carbonic waste material and the ferreous waste material are firstly dried and crushed by a crusher, and then enters a blending machine to be mixed together with the dry materials such as the iron scale and the like; the mixture is added with the caking agent to be evenly mixed, and the mixed material is sent into a mixing mill and then into a twin-roller ball press machine to be pressed into conglomeration; the pressed conglomeration is screened by a sieving machine, and the qualified screened conglomeration can be sent into a dry furnace to be dried, so that the finished product conglomeration can be obtained. The rotary furnace cooling agent completely uses the waste materials generated in the steel production, and can be used for replacing the common waste steel to be applied in smelting of a rotary furnace, so that no special reduction plant is needed for use, the process flow is short, the cost is low, the using method is flexible, the adding quantity is large, the recovery rate is high, the field operation is seldom affected, the economic benefit and the environmental protection benefit are remarkable, and the promotion and application values are excellent.

The present invention provides modified heavy calcium carbonate for a fire retardation electric cable material. The modified heavy calcium carbonate is prepared from the following raw material components, by weight: 90-100 parts of heavy calcium carbonate, 0.2-0.5 part of butyl naphthalene sulfonate, 0.5-0.8 part of sodium alcohol ether sulphate, 1-2 parts of epoxidized triglyceride, 0.1-0.2 part of stearic acid, 0.1-0.2 part of barium stearate, 0.2-0.3 part of dimethicone. 1-2 parts of carboxymethyl cellulose, 0.6-0.8 part of alumina, 1-3 parts of triphenyl phosphate, and 1-2 parts of distearoyl isopropoxy aluminate. The preparation method comprises: drying calcium carbonate, adding other raw materials according to the ratio, completely mixing in a high speed stirrer, and carrying out drying and grinding to obtain the finished product. The obtained modified calcium carbonate has characteristics of good dispersity and good fire retardation, and can be used for fire retardation electric cable materials so as to reduce cost and improve various physical properties of the electric cable material.

The invention discloses a cement-free iron runner castable. The cement-free iron runner castable is composed of 58-62% of a compact corundum aggregate, 6-10% of silicon carbide, 2-3% of spherical asphalt, 1.5-6% of silicon nitride powder, 6-10% of alumina micro powder, 3-6% of silicon dioxide micro powder, 0.2-0.4% of nano carbon black, 3-8% of silicon carbide powder, 0.2-0.4% of boron carbide powder, 0.5-1% of metal aluminum powder, 0.5-1% of metal silicon powder, 0.08-0.12% of explosion-proof fibers, 0.1-0.3% of a dispersing agent and 2-8% of compact corundum powder. According to the invention, an iron runner castable system is formed by combining high-purity silicon dioxide micro-powder and aluminum oxide micro-powder, so that the purity, refractoriness and compactness of the castable reach a new height. Through high-purity, high density and the like of the system disclosed by the invention, the heat-state rupture strength, which is the index with most high-temperature representativeness, after heat is preserved by 1 hour at 1400 DEG C reaches 10 MPa or above.

The invention discloses a roller way kiln firing method for lightweight foamed ceramic plates; the method comprises the steps: (1) heating up to T1 of 800-900 DEG C, and holding for 0-30 min at T1, wherein the heating rate of heating from 0 DEG C to 400 DEG C is 10-20 DEG C/min, and the heating rate of heating from 400 DEG C to T1 is 1-8 DEG C/min; (2) heating up to T2 of 1150-1220 DEG C, and holding for 0-60 min at the highest temperature, wherein the heating rate of heating from T1 to T2 is 1-8 DEG C/min; and (3) slowly cooling, wherein the cooling rate of cooling from T2 to 600 DEG C is 3-9DEG C/min, and the cooling rate of cooling from 600 DEG C to 50 DEG C is 1-4 DEG C/min. By adopting of the method, low temperature fast firing is realized, and the lightweight foamed ceramic plates obtained by firing have no difference in air holes from top to bottom in same cross-sections, and have high bubble uniformity.