58results about How to "Strong anti-penetration" patented technology

The invention discloses a torpedo tank lining gunning repairing material, a preparation method and applications thereof, wherein the torpedo tank lining gunning repairing material comprises, by weight, 60-67 parts of a Al2O3-containing fireproof material after-using regenerating material, 3-7 parts of fireproof clay, 2-5 parts of flaky graphite, 3-7 parts of silicon carbide, 10-15 parts of an alumina homogeneous material, 3-6 parts of kyanite, 2-5 parts of alpha-Al2O3 micro-powder, 3-11 parts of a binder, and 1.2-3.4 parts of an admixture. According to the present invention, the torpedo tank lining gunning repairing material has characteristics of low raw material cost, wide regeneration material source, convenient cold-hot state gunning repairing, excellent thermal shock stability, strong repairing layer interface bonding strength, strong slag iron corrosion resistance, high torpedo tank operation rate, long service life, and the like.

The invention relates to a nano titanium polymer inner wall anticorrosion oil pipe in the technical field of pipeline corrosion resistance. The technical scheme is as follows: the nano titanium polymer inner wall anticorrosion oil pipe comprises an oil pipe and an anticorrosion layer coated on the inner wall of the oil pipe. The anticorrosion layer is prepared by the following steps of: mixing and stirring 130-160 parts by weight of novolac epoxy resin, 20-40 parts by weight of nano-scale titanium powder and 10-30 parts by weight of diluent; sequentially adding 2-3 parts by weight of organosilicon leveling agent and 3-5 parts by weight of bentonite filler to adjust viscosity; screening with a sieve of 1,100-1,300 meshes to obtain an component A of a finished product; mixing and dispersing 15-18 parts by weight of curing agent, 4-6 parts by weight of titanate coupling agent and 6-8 parts by weight of butanone to obtain a component B of the finished product; and finally blending the component A and the component B by the diluent according to a ratio of (4.5-5.5):2:(1-2). Compared with other anticorrosion products, the product provided by the invention has unique advantages of static resistance, strong permission resistance and the like; and moreover, the construction equipment and technology are simple, and the product is easy to popularize.

The invention relates to quartzite, and discloses an ecological texture artificial quartzite sheet material and a preparation method thereof. The method comprises the steps of performing stirring, distributing, pressing, frame-drawing, thermocuring, thickness defining, cutting, polishing and inspecting on quartz sands, quartz powder, unsaturated resin, coupler, curing agent and pigment to prepare a finished product. The preparation process is simple and has high production efficiency and short pressing and stirring time, the production time can be reduced, production cost and product rejection can be effectively reduced, the color matching style is unique attractive and harmonious, and the texture types of quartzite can be greatly enriched; and the finished product has high density and strong infiltration resistance, and is easy to clean; and the manufactured quartzite sheet material has the advantages of no radioactive contamination, scratch prevention, burning prevention and recycling.

The invention discloses an outer wall waterproof coating. The outer wall waterproof coating is prepared from the following raw materials in parts by weight: 25-35 parts of silicon acrylate emulsion, 25-40 parts of filler, 1-8 parts of film forming additive, 1-5 parts of dispersant, 0.1-0.5 parts of thickener, 0.5-2 parts of flow agent, 1-5 parts of defoamer and 30-40 parts of dedeionized water. The outer wall waterproof coating is strong in the permeability resistance, obvious in the waterproofness, good in weatherability, and strong in acid-resisting, alkali-resisting and corrosion-resisting capability, has stronger high temperature resistance, does not have chemical odor which is harmful to a human body, is simply prepared and is an ideal outer wall waterproof coating.

The invention discloses a glass fiber double-layer oil tank which comprises two modified polyethylene ceramic double-layer half tanks in screw joint, wherein a glass fiber storage inner tank layer is adhered to the outer side of each modified polyethylene ceramic double-layer half tank, a glass fiber tube internally filled with a filler is wound on the outer wall of the glass fiber storage inner tank layer by a cloth winder, a glass fiber storage outer tank layer is adhered to the outer wall of the glass fiber tube, oil tank pipe orifices extending out of the glass fiber storage outer tank layer are formed at the upper parts of two extending shafts and the bottoms of the modified polyethylene ceramic double-layer half tanks, the lower parts of the two extending shafts are respectively provided with a base, and a hydraulic ejector rod capable of rotating along the base is arranged on the base; by adopting the structure, the effects of being high in safety, high in environment protection performance and low in cost and preventing moisture erosion and electrolytic etching can be achieved; and furthermore, the invention also discloses a device and a method for producing the glass fiber double-layer oil tank.

The invention discloses an efficient energy-saving magnesian ramming material prepared by recycling waste magnesite brick materials of a cement plant and a preparation technology. The efficient energy-saving magnesian ramming material is prepared from the recycled waste materials of the cement plant through the preparation technology processes of waste material selecting, classifying, crushing, particle size screening, analyzing, ingredient synthesizing, inspecting, packaging, qualified product warehousing and the like. The MgO content of the prepared efficient energy-saving magnesian ramming material is higher than or equal to 85%, and the product has the advantages of being good in chemical stability, uniform in structure of a pre-reaction sintering layer, high in compactness, good in erosion resistance, high in permeating resistance, good in material impact and wear resistance, high in softening temperature and the like. No bonding agent or water needs to be added in the construction process, blowing-in can be quickly conducted after furnace building, and the service life is 3 times that of magnesite bricks when the efficient energy-saving magnesian ramming material is applied to the furnace bottom of an ore-smelting electric furnace with the power of 16,500. According to the efficient energy-saving magnesian ramming material, the preparation technology procedures are simple, the raw materials are selected from the waste materials of the cement plant, secondary utilization of the waste materials is achieved, the environmental protection and energy saving call of the state is responded, the waste materials can be effectively utilized, natural resources are greatly saved, and the extremely high industrial application value is achieved.

The invention discloses a Glassine base paper production method, which comprises the following steps: a, bleached sulfate softwood pulp is selected and used as a raw material; b, an alkylketene dimmer synthetic glue and paper making special starch with a weight percentage of 5% are added in the bleached sulfate softwood pulp; c, a net part is formed via double-faced bidirectional dehydration, and positive contrast is reduced; d, press dewatering is performed after the formation; e, a front drying part performs drying after dewatering; f, a paper page enters a large roller radial pressing area and passes through a soaking solution, and a certain quantity of adhesive films cover the surface of the paper page; g, the drying part performs shaping and drying after film coating; h, the processed paper is further treated by a steel roller in high-temperature calendaring intermediate; y, the paper is cut and packed by a rewinding machine. Compared with the prior art, the Glassine base paper production method has the technical characteristics of strong infiltration resistance, reduction of the use amount of silicon oil, increment of the surface strength of the paper pages and low probability of linting, and can greatly improve the production efficiency.

The invention relates to a corrosion-resistant coating and a processing method thereof and belongs to the technical field of reprocessed raw materials. The corrosion-resistant coating is prepared from components in percentage by weight as follows: 40%-60% of asphalt, 22%-43% of resin, 15%-25% of a curing agent and 2%-3% of filler. The processing method is applicable to processing of the corrosion-resistant coating, and the corrosion-resistant coating has the advantages of high corrosion-resistant effect and the like.

The invention discloses a fire resistant material for a furnace wall mouth of a nonferrous smelting furnace. The fire resistant material is suitable for a furnace wall mouth position of the nonferroussmelting furnace and is prepared from electric smelting chromium corundum, chrome oxide and a gel binder. According to the fire resistant material, the electric smelting chromium corundum and the chrome oxide serve as raw materials, the content of MgO is reduced, so that related MgO dissolution and subsequent decomposition reactions which occur in the fire resistant material are greatly reduced,related thermal reactions are reduced, and the situation is avoided that the structure of the fire resistant material is damaged by frequent reactions. Due to the electric smelting chromium corundum,the fire resistant material is good in high-temperature performance, thermal vibration stability and corrosion resistance. Due to the chrome oxide, the penetration resistance of the fire resistant material is good.

The invention belongs to the technical field of equipment and materials of kitchens and bathrooms and particularly relates to a burst-proof non-toxic protective layer for a valve core of a water faucet. The burst-proof non-toxic protective layer for the valve core of the water faucet, provided by the invention, has the advantages that the valve core of the water faucet can be prevented from bursting and the surface of the valve core is prevented from corrosion. The burst-proof non-toxic protective layer for the valve core of the water faucet comprises a water faucet valve core and a protectivelayer, wherein the water faucet valve core is smeared with the protective layer; and the protective layer is prepared from the following raw materials in percentage by mass (100%): 10% of gypsum powder, 10% of talcum powder, 5% of blockage preventer, 25% of glass glue, 0.5% of strengthening agent and 49.5% of iron sand. The burst-proof non-toxic protective layer achieves the effects of preventingbursting, preventing corrosion and prolonging the service life of the valve core.

The invention provides self-crushing concrete based on magnetocaloric excitation, and preparation method and application thereof. The self-crushing concrete contains, by weight, of the components of 250-300 parts of sulfur, 100-150 parts of Portland cement, 150-200 parts of fine aggregate, 350-500 parts of coarse aggregate, 10-20 parts of paraffin, 30-50 parts of magnetic powder and 20-30 parts ofmineral filler; the density is 2050-2850 kilograms per cubic metre after the components are mixed. With the coordination and synergy of the components, the self-crushing concrete based on the magnetocaloric excitation has the advantages of having not only the characteristics of high strength, corrosion resistance, penetration resistance and rapid setting of existing sulphur concrete but also theadvantages of light weight and rapid expansion of heat volume of lightweight aggregate concrete, and being reasonable in design, low in cost and simple in preparation process. Furthermore, members made of the concrete have the advantages of being good in mechanical properties and capable of self expanding and crushing under the action of an external alternating magnetic field during demolition, reducing the difficulty of demolition construction, and being suitable for popularization.

The invention provides an anti-seepage stable cofferdam structure and a construction method thereof. The cofferdam structure comprises a cofferdam foundation, and further comprises a berm and a cofferdam body which are sequentially arranged from the upstream face to the downstream face; the cofferdam foundation is filled with the berm; the berm and the cofferdam foundation are filled with the cofferdam body; sand cushion layers are laid on the upstream face of the berm and the upstream face of the cofferdam body; mold bag concrete protection slopes are laid outside the sand cushion layers; an anti-seepage wall is arranged in the berm; a composite geomembrane is buried in the cofferdam body; the lower end of the composite geomembrane is connected to the upper end of the anti-seepage wall in a pouring manner; and the berm and the anti-seepage stable cofferdam structure are each of a trapezoid structure. According to the anti-seepage stable cofferdam structure and the construction method thereof, the stability of the cofferdam structure can be maintained without increasing the height of a cofferdam or decreasing the gradient of the cofferdam, the size of the cofferdam structure is reduced, the situation that the work amount of the cofferdam structure is sharply increased is avoided, and the project cost is remarkably reduced.

The invention belongs to the technical field of pipeline linings, and discloses an isobaric preparation process for a polytetrafluoroethylene lining of a pipeline. The process comprises the followingsteps of filling polytetrafluoroethylene powder between the inner wall of the pipeline and a rubber bag soft mold, sealing, putting into an autoclave, equally increasing the water pressure in a rubberbag and the autoclave to a specific high pressure, and expanding the rubber bag to compact polytetrafluoroethylene, so that forming the uniform and compact lining on the inner wall of a steel pipe. Compared with a traditional compression molding method, the isobaric molding process has the advantages that equipment and molds used are simple, operation is convenient, and the yield is high; the pressures inside and outside the pipeline are equal in the machining process, and the steel pipe is not damaged; and the lining is uniform and compact and low in shrinkage rate due to everywhere equal high pressure. The specific technological process comprises the steps of A, steel pipe inner surface treatment, B, rubber bag soft mold loading, C, polytetrafluoroethylene powder adding, D, sealing, E,water injection and pressurization in the autoclave, F, pressure relief and part taking, G, rubber bag soft mold removal, H, sintering and I, inner filler removal.

Disclosed is a corrugated paper based kitchen water purification machine cushion-packaging structure. The corrugated paper based kitchen water purification machine cushion-packaging structure comprises an outer packaging box, a bottom lining body, a main lining body and an accessory box; the space between the bottom lining body and the main lining body is used for clamping a filter drum and a main engine, and the accessory box and a pressure drum are placed at the top of the main lining body. By the design that a plurality of reverse-folded triangular-prism cushion structures are arranged on the periphery of the main lining body in the cushion packaging structure, characters which are stable and less prone to deformation, of a triangular are fully utilized, shock absorption can be achieved when the packaging box is shocked, protective effect on key cushion of the periphery of the main engine is realized, and internal products can be observed through windows formed in side walls of the main engine through the reverse-folded triangular-prism cushion structures. The lining structure is integrally highly resistant to knocking, protruding, penetrating and shocking, self-adaptability and safety reliability are good, and resources are saved.