49results about How to "Good environmental coordination" patented technology

The invention discloses an enhanced metal ceramic abrasion-resistant composite material and a preparation method thereof. The composite material is composed of, by mass, 25-35 parts of nano molybdenum carbide, 15-25 parts of nano ceramic powder, 10-15 parts of glass fiber, 5-10 parts of cobalt, 10-15 parts of chrome, 10-15 parts of titanium carbonitride, 1-3 parts of zirconium oxide, 3-5 parts of silicon oxide, 8-10 parts of cerium oxide, 1-3 parts of aluminium oxide, 5-10 parts of niobium carbide, 5-15 parts of silicon carbide, 1-3 parts of vanadium carbide, 4-9 parts of copper, 1-5 parts of titanium powder, 1-5 parts of coupling agents, 1-3 parts of antistatic agents and 1-3 parts of curing agents. The preparation method of the enhanced metal ceramic abrasion-resistant composite material just comprises mixing, drying, sintering and cooling. The metal ceramic composite material has good properties that the bending resistant strength is up to 2500 MPa and the Rockwell hardness is up to 93; in addition, the metal ceramic composite material also has good properties of abrasion resistance and high temperature resistance; the preparation method is simple and feasible and suitable for application and popularization on a large scale.

The invention belongs to the field of the preparation of ceramic matrix composites, and particularly relates to a SiC whisker reinforced SiC ceramic matrix composite and a preparation method thereof. The SiC whisker reinforced SiC ceramic matrix composite is prepared from a preform through a Si or Si alloy infiltration reaction, and the preform is prepared by compressing and molding a raw material comprising a rice hull SiC whiskerized product. By the method, the preparation process is simple, the temperature of the infiltration reaction is low, external pressure is not required, and the preform can be prepared into complicate shapes and can be used for preparing members with complicated shapes. A main composition phase SiC of the composite comes from rice hull, the raw material is rich, the cost is low, the manufacturing cost of the ceramic matrix composite can be remarkably reduced, the resource is saved and the environment is protected. The SiC ceramic matrix composite has good performance, SiC whiskers have the effect of strengthening materials, and the SiC whisker reinforced SiC ceramic matrix composite can be used for applicable occasions of SiC reaction sintering ceramic material products such as sliding bearings, corrosion-resistant and wear-resistant pipelines, valves and fan blades, military and civil body armors and the like.

The invention relates to a potassium niobate natrium series leadless piezoelectric ceramics and the manufacturing method. It is expressed by the general equation: (1-u)[(1-n)(LitNa1-w-t1Kw-t2)(Nb1-g-fTagSbf)O3+nBiMeO3]+uM. The invention has stable manufacturing technology and has great usefulness.

The invention relates to a multielement potassium niobate natrium series leadless piezoelectric ceramics and the manufacturing method. It is expressed by the general equation: (1-u)[(1-z-n)(LitNa1-w-t1Kw-t2)(Nb1-g-fTagSbf)O3+ z(Bi0.5Na0.5xK0.5 (1-x))TiO3+nBaTiO3]+uM. The invention has stable manufacturing technology and has great usefulness.

The invention discloses a thermally stable lead-free high-temperature piezoelectric ceramic and a preparation method thereof, which is characterized in that the thermally stable lead-free high-temperature piezoelectric ceramic consists of components expressed by the following general formulas: (Naa Kb Lic Agd Bie) (Nbu Tay) O3 +xM1 +yM2, M1 is titanate of the following metals: Mg, Ca, Ba and Sr; M2 is the carbonate or oxide of the following metals: Na, K, Li, A1, Cu, Fe, Mn, Zn, Pr, Nd, Sm, Gd, La, Dy, Er, Yb, Sc and Sb; x and y are the percentages for which the weights of M1 and M2 account in the overall weight of raw materials. The lead-free high-temperature piezoelectric ceramic of the invention is a lead-free, environmentally coordinative, high-temperature piezoelectric ceramic with low agglomerating temperature, high curie temperature, stable thermal performance of electricity, and high mechanical strength, and has stable preparation technique and can be obtained by adopting the preparation technique and industrial materials for traditional piezoelectric ceramics, so the invention is practical.

The invention discloses a FGD (flue gas desulphuration) gypsum-alkaline residue soil stabilizer, comprising the following ingredients: 12-30wt% of FGD gypsum, 20-50wt% of alkaline residue, 0-30wt% of slag, 0-5wt% of additive, and 0-20wt% of fly ash; wherein the summation in weight percentage of the ingredients is 100%. The soil stabilizer disclosed herein has the advantages of alleviating the environmental protection pressure of alkaline and power enterprises and resource shortage pressure of building material enterprises, reducing waste discharge burden of enterprises, increasing income, and improving ecological environment.

The invention discloses a potassium-bismuth titanate-based solid solution lead-free piezoelectric ceramic and a manufacturing method thereof. The components are represented by the general formula of (1-n){(1-u)(Bi0.5K0.5)TiO3+u[(1-z)Bi(CxDy)O3+zBiEO3]}+nM. The ceramic components of the invention have a morphotropic phase boundary of the rhombic ferroelectric phase and the cubic ferroelectric phase, good piezoelectric performance and higher Curie temperature. The ceramic components have the characteristic of environmental protection, can realize the replacement of a part of the traditional lead-containing piezoelectric ceramics, and can be manufactured by using the manufacturing method of the traditional piezoelectric ceramic and the industrial materials, thereby having practical application.

The invention discloses lead-free Bi0.5Na0.5TiO3-based magnetoelectric composite ceramic and a preparation method thereof. The lead-free Bi0.5Na0.5TiO3-based magnetoelectric composite ceramic is prepared from a modified Bi0.5Na0.5TiO3-based ferroelectric phase and spinel ferrite ferromagnetic phase through compounding, wherein a molar ratio range of the spinel ferrite ferromagnetic phase is 0.2 to 0.4. The preparation method of the lead-free Bi0.5Na0.5TiO3-based magnetoelectric composite ceramic adopts a modified sol-gel preparation technology and is characterized by soaking ferrite ferromagnetic phase particles into a ferroelectric precursor solution, heating and stirring, thus forming a ferroelectric sol coated ferromagnetic particle composite precursor; carrying out secondary presintering after drying, thus obtaining two-phase composite powder; pressing and then sintering the powder, thus obtaining the composite ceramic. Lead-free magnetoelectric composite ceramic particles prepared by the invention are uniform in dispersion, high in electrical resistivity, large in piezoelectric response and strong in magnetoelectric coupling performance. The lead-free Bi0.5Na0.5TiO3-based magnetoelectric composite ceramic is high in magnetoelectric energy conversion efficiency and simple in preparation technology, is environmentally friendly and harmless, and can be used in the fields of electronic devices such as a sensitive magnetoelectric sensor, an energy converter and a filter.

The invention discloses a preparation method of a grass planting and sand fixing brick. The preparation method is characterized by adopting the following materials in parts by mass: 5 to 15 parts of calcined desulfurization gypsum, 5 to 15 parts of sulfur-fixing ash, 60 to 80 parts of desert sand, 2 to 5 parts of crop straw powder, 0.05 to 0.15 part of a surfactant, 2 to 5 parts of an organic matter, 0.05 to 0.5 part of a water retaining agent, 0.1 to 0.5 part of herbaceous plant seeds and water of which a water-solid ratio is 0.55 to 0.7. The invention also discloses the grass planting and sand fixing brick prepared by adopting the preparation method. The grass planting and sand fixing brick disclosed by the invention is low in cost and convenient in production, the mechanical property meets the requirement of slope protection of a desert highway; the grass planting and sand fixing brick has the advantages that good environment coordination is obtained, and a suitable grass seed growth environment is provided; meanwhile, regeneration and cyclic utilization can be realized, the pavement stability is good, sand slope pavement and grass planting are facilitated, and the like.

The invention provides an energy-saving environment-friendly steel cord hot-dip coating copper-zinc alloy layer and a thermal treatment production process thereof in the process of steel cord production. The process comprises electrolytic degrading, washing, coating an assistant coating agent, drying, coating copper in hot-dip mode and austenitizing, coating zinc in hot-dip mode and isothermal treatment and diffusion annealing. The temperature for the process of coating the copper in hot-dip mode and austenitizing ranges from 1100 DEG C to 1140 DEG C, and the temperature for the process of coating the zinc in hot-dip mode and diffusion annealing ranges from 550 DEG C to 600 DEG C. After diffusion annealing, mass percentage of zinc in the copper-zinc alloy coating layer ranges from 30%-37%. The production process respectively utilizes the two procedures of coating the copper in hot-dip mode and austenitizing and coating the zinc in hot-dip mode and isothermal treatment to replace four procedures of austenitizing, copper coating, isothermal treatment and zinc coating, solves the problems of heavy metal iron sewage discharging, waste gas exhaust during austenitizing heating and lead and powder pollution during isothermal treatment in the existing production process, and has the advantages of being good in environment protection performance, high in production efficiency and low in production cost.

The invention discloses a coal slime drying system using electric power plant low-grade steam and solar energy. The system comprises coal slime conveying equipment used for conveying to-be-dried wet coal slime, a solar greenhouse used for providing coal slime drying and solar irradiation, a coal slime turning machine used for paving, turning throw, conveying and cutting the coal slime into fine coal slime particles, dried coal slime conveying equipment used for conveying dried coal slime, an electric power plant thermodynamic system used for proving low-grade steam, and a floor heating device used for absorbing the heat energy of the low-grade steam to supply heat energy required by coal slime drying. The invention also provides a coal slime drying method using electric power plant low-grade steam and solar energy. The method has the advantages of high system transparency, good environment coordination, stable and sate operation, low operation maintenance cost, energy source saving and the like.

The invention discloses a virtual three-dimensional reconstruction and scene creation method for a building, and belongs to the field of three-dimensional graphic design, and the creation method comprises the following specific steps: (1) collecting basic information and environment information of the building; (2) enabling the modeling software to start to construct a building model and an environment model; (3) receiving the scene information, and starting the virtual scene construction; (4) performing detail optimization on the constructed scene; (5) carrying out data annotation on the virtual model and generating a related design document. According to the method, coordination judgment and optimization can be automatically carried out on the building, scene design and environment, the environmental coordination between the building and scene design and the surrounding environment is improved, the requirement for harmonious development of people and the nature is met, the natural environment is protected, resources are saved, workers do not need to manually mark all parts of the building, the time for writing the design document by workers is saved, and the working efficiency of the workers is improved.

The invention provides a multifunctional ceramic composite material and a preparation method thereof. The ceramic composite material has the advantages of excellent performance and high strength. The preparation method has the advantages of simple process, low production cost, low energy consumption and suitability for industrial production. The multifunctional ceramic composite material comprises the following components in weight percentage: 25%-35% of SiC, 25%-35% of TiCN, 5%-10% of Si3N4, 0.5%-1.5% of V2O5, 1%-2% of BaO, 4%-6% of SiO2, 2%-5% of TiO2, 1%-3% of ZrO2, 0.10%-0.15% of La2O3 and the balance of Al2O3.

The invention discloses a net-rope-and-plug-linked-type landscape anchoring device used for preventing falling type dangerous rock. The net-rope-and-plug-linked-type landscape anchoring device is characterized by comprising a plurality of anchoring units distributed on the periphery of the dangerous rock, a protective net for covering the surface of the dangerous rock and landscape objects attached to the protective net; each anchoring unit comprises a plug and a reverse-pulling cylinder, wherein the plug is inserted and clamped into the reverse-pulling cylinder to achieve connection of the plug and the reverse-pulling cylinder; the reverse-pulling cylinders and a parent rock mass are connected in an anchored mode through mortar; each plug comprises a pencil-shaped body, and each body is provided with a plurality of barb grooves and a plurality of barbs at intervals; the barb grooves of the plugs are cuboid grooves, and the length of the barb grooves is coincident with the length of the barbs; the barbs are hinged to the sides of the barb grooves through studs and meanwhile elastically supported by stretchable devices; the reverse-pulling cylinders of the plugs are rectangular columns, a plurality of barb clamping grooves are evenly formed in each reverse-pulling cylinder, four penetrating reinforcing steel bar holes are preserved in each reversing-pulling cylinder, four penetrating reinforcing steel bars are arranged in each reversing-pulling cylinder, and the barb clamping grooves are wedge-shaped grooves. According to the net-rope-and-plug-linked-type landscape anchoring device, the rock mass of the dangerous rock is not damaged, and construction is rapid and convenient; the net-rope-and-plug-linked-type landscape anchoring device has the advantage of achieving landscape repairing.

The invention discloses a preparation method of an adhesive for artificial boards. The preparation method comprises the following steps: (1) adding talcum powder into a certain amount of water, and stirring to fully dissolve the talcum powder; (2) heating the solution obtained in the step (1), adjusting the pH, then adding starch and polyether polyol in sequence, and heating the solution under stirring; (3) adding sodium meta-borate and sodium benzoate into the solution obtained in the step (2), adjusting the pH, adding urea, and stirring the solution; and (4) adding high molecular weight thermoplastic resin, heating the solution under stirring, and naturally cooling the solution to obtain the adhesive. The adhesive does not release toxic gas, has good environmental coordination, avoids the formaldehyde pollution, has a lower content of VOCs, and is more environment-friendly, compared with the conventional adhesives.

The invention discloses aeolian sand cement stabilized graded broken stone. The aeolian sand cement stabilized graded broken stone comprises the following raw materials by mass percent: 4.2-5.2% of cement, 4.6-6.6% of water, and the balance of aeolian sand graded broken stone; the aeolian sand graded broken stone comprises the following raw materials by mass ratio, and the ratio of the aeolian sand to the stone chips to the broken stone is equal to (8-13):(17-26):(66-70). According to the aeolian sand cement stabilized graded broken stone, the capital input of the highway projects is relatively low, the cost of the raw materials for building the road is low, and the flexural-tensile strength and the crack resistant property of the cement stabilized graded broken stone are improved.

The invention discloses a novel adhesive for plywood. The novel adhesive for the plywood is prepared from the following raw materials in parts by weight: 2.5-4 parts of talcum powder, 4.5-8 parts of high molecular weight thermoplastic resin, 1.5-2.7 parts of pentaerythritol, 2.5-6 parts of starch, 2.3-4.2 parts of polyether polyol, 0.3-1.2 parts of propyl starch ether, 2-3.5 parts of hydroxyl-terminated polyester crico-polyol and 0.5-0.9 part of modified tree ash. Compared with an existing adhesive, the novel adhesive for the plywood has the advantages that the novel adhesive for the plywood can be produced by adopting the conventional adhesive production equipment without investing additional processing equipment; a method and a preparation technology are simple, reaction conditions are mild, and process stability is high; cheap and reproducible starch is adopted as a main raw material, and no hazardous gas is released, so that the novel adhesive for the plywood has good environmental friendliness; and the novel adhesive for the plywood is lower in total volatile organic compound content and better in environmental performance compared with common white latex.