40results about How to "Effective corrosion resistance" patented technology

The invention relates to a graphene high temperature resistant corrosion-resistant coating for a metallic material and a preparation method of the graphene high temperature resistant corrosion-resistant coating. The graphene high temperature resistant corrosion-resistant coating consists of the following components in parts by weight: 6-12 parts of graphene oxide, 20-45 parts of a phenolic resin,2-6 parts of polyvinyl butyral, 1-4 parts of rare earth chloride, 12-30 parts of graphene quantum dots, 2-5 parts of a heat conduction metallic powder, 3-6 parts of carbon nanotubes, 12-30 parts of asolvent, 2-6 parts of an antioxidant, 5-9 parts of a curing agent and 12-18 parts of a defoaming agent, wherein the graphene quantum dots is 2-4nm in size; the solid content of the phenolic resin is 45-55%. According to the graphene high temperature resistant corrosion-resistant coating provided by the invention, by the virtue of the good dispersibility of the graphene quantum dots in solvents andrelatively good non-covalent functions of the graphene quantum dots with graphene sheets, two-dimensional sheet structures of the graphene can be overlapped layer by layer in the coating, a compact physical insulating layer can be formed, and the corrosion resistance of the coating can be improved.

The invention relates to a manufacturing method of bamboo boards by side standing pressing of bamboo chips, including the following steps: bamboo chips or bamboo stripes initially processed according to required sizes are put into a kiering pool to be brewed with boiling water or are placed into a kiering pool with insect-resist agents, mold preventing agents, bleachers or coloring agents to be brewed with boiling water or placed into a dip bleaching pool with bleachers or coloring agents to be dip-bleached; the bamboo chips or bamboo stripes are directly placed into an autoclave for high temperature steam and sulfuration; a resin adhesive is uniformly coated on bottom surfaces and surfaces of the dried bamboo chips or bamboo stripes; the glued bamboo chips or bamboo stripes are sent into a hot-press to be hot-pressed until the glue is solidified; the chips or stripes are cooled to the normal temperature, then stored in a constant-temperature house for 30 days and then cut into finished products according to needed dimensions. The surfaces of the bamboo boards are natural textures formed by the lamination of sides of slices of bamboo chips and are beautiful without knots; the boards are larger in bearing capacity, little in gel content of finished products, more good for the environmental protection and hard to deform; and compared with the prior art, the method is high in efficacy, saves electricity, improves the utilization efficiency of original bamboos and saves cost.

The invention relates to a novel prestressed steel pipe-concrete composite beam, and belongs to the technical field of building structure engineering. The prestressed composite beam mainly comprises a steel beam (1) and a concrete floor slab (2) poured on the steel beam, and is characterized in that: a bottom flange of the steel beam is a steel pipe (3); a plurality of linear steel ropes (4) are arranged in the steel pipe; after the prestressed steel ropes are strained, two ends of the steel pipe (3) are sealed; and the concrete floor slab (2) is poured. Compared with a steel beam and a common composite beam, the novel composite beam has the advantages of great reduction of midspan deflection and steel beam section stress, easy strain of the steel ropes, effective anticorrosion and fire prevention, simple and convenient construction and remarkable economic benefits.

The invention relates to a multi-pipeline connecting flange which comprises a first flange body, a second flange body, a sealing gasket, fastening bolts and nuts. The sealing gasket is arranged between the first flange body and the second flange body. The corresponding positions of the first flange body and the second flange body are each provided with at least two pipe containing holes and are further each provided with at least two fastening through holes. The fastening bolts sequentially penetrate the fastening through holes of the first flange body and the fastening through holes of the second flange body to be in threaded connection with the nuts. According to the multi-pipeline connecting flange, due to the fact that the corresponding positions of the first flange body and the second flange body are each provided with the at least two pipe containing holes, multiple pipelines can be connected at the same time, the engineering efficiency is greatly improved, manpower and material resources are saved, and the construction progress is accelerated.

The invention discloses a steel-composite material wind-driven generator tower cylinder, which comprises an internal steel pipe and an external composite material pipe, a plurality of conical steel pipe sections are connected to form the internal steel pipe, and the external composite material pipe comprises a plurality of glass fiber composite material pipe sections; corrosion-resistant E-glass fiber cloth is stuck on the surface of each internal steel pipe, so that the steel-composite material combination section is formed; the steel-composite material combination section is circumferentially divided into two pieces; longitudinal reinforcing ribs are arranged along the longitudinal direction of each piece; each two pieces of steel-composite material combination sections are connected together by adopting high-strength bolts, so that a steel-composite material tower cylinder section is formed in the end; and each two steel-composite material tower cylinder sections are connected together through flanges, so that the steel-composite material tower cylinder for on-site installation is formed. Compared with conventional steel wind-driven generator tower cylinders, the steel-composite material wind-driven generator tower cylinder can effectively resist the hit of wind-blown sand and stormy waves, fatigue and corrosion, so that the life of the tower cylinder can be guaranteed.

The invention discloses a combined firework conformation body adopting a foamed material, which is used for fixed setting off of device firework inner barrel. The combined firework conformation body comprises a conformation body and barrel holes; the conformation body is processed and formed from foamed material; a plurality of closed barrel holes are formed in the conformation body, in which firework inner barrel can be fixedly connected; the quantity of barrel holes in the conformation body and the shape of the arrangement of the barrel holes are arranged according to the firework setting off requirement; and the outer shape of the conformation body is of a cube, a rounded body, a elliptical body, a fan-shaped body, a triangular body, a polygonal body or a specific body shape; and the conformation body is formed through integral molding. The combined firework conformation body adopting the foamed material has the advantages of simplicity in process technology, lightness, water-proofness, moisture-proofness, vibration-proofness and corrosion-proofness, is suitable for the one-step integral conformation of various firework outer barrels or inner barrels, can be processed into various shapes or specific shapes as needed, and is particularly suitable for mechanical manufacture and process.

The invention relates to an air injection device for a low-noise classroom. The air injection device for the low-noise classroom comprises a box body and an air pipe connector. A plurality of adjustable ball-shaped nozzles are installed on the side wall of the box body, the air pipe connector is installed at one end of the air pipe connector, and a silencing material layer is paved on the inner side wall of the box body. The air injection device for the low-noise classroom is easily combined combine with a building and can inject purified fresh air out, supplied air jets can reach all positions in the classroom after spreading, and noise is lowered.

A shale light perforated brick is disclosed. The perforated brick is prepared from following raw materials by weight: 35-45 parts of shale, 25-30 parts of gangue, 8-10 parts of corncob, 8-12 parts of fly ash, 3-5 parts of alumina, 2-4 parts of silica, 1-3 parts of magnesium oxide, 4-6 parts of ferrous ferric oxide, 5-7 parts of corundum, 3-6 parts of chromic oxide, 2-5 parts of silicon carbide and 5-8 parts of titanium dioxide. The beneficial effects of the perforated brick are that: after being fired, the perforated brick can be effectively resistant to heat and corrosion, fracture phenomena are prevented, and heat resistance is improved by 2-3 times.

The invention discloses an anti-corrosion and anti-moth manufacturing method for a composite solid wood floor. The manufacturing method comprises the following steps that a base material and a decorative layer material are selected and subjected to moth-proof pretreatment, and then the base material and the decorative layer material are manufactured into a base material plate and a decorative plate to be stacked and stored; a mothproof coating is prepared; mothproof coating is sprayed on the base material plate and the decorative plate correspondingly; flowing ultraviolet radiation sterilization is carried out, and the surface quality is manually re-inspected; low-temperature intermittent drying treatment, carbonization treatment and standing maintenance treatment are carried out; gluing treatment and press-fit treatment are carried out; and processing and forming, UV paint roller coating and ultraviolet light secondary irradiation are carried out. According to the anti-corrosion and anti-moth manufacturing method for the composite solid wood floor, the mothproof coating spraying, the flowing ultraviolet irradiation sterilization, the low-temperature intermittent drying treatment,the carbonization treatment and the standing maintenance treatment are carried out on the base material plate and the decorative plate so that the water content of the base material plate and the decorative plate can be stably controlled, it is guaranteed that the water content is in the most stable state, and corrosion prevention and moth prevention can be effectively carried out.

The invention discloses an environmentally-friendly wastewater treatment device. The device comprises a wastewater treatment system and a purification device arranged inside the wastewater treatment system. The purification device is composed of a filter net and filters. Anticorrosion agents and deodorant are arranged inside the filters. The whole device is simple in structure and convenient to operate, meanwhile, the anticorrosion agents and deodorant are added into the filters, in this way, wastewater can be effectively subjected to corrosion resistance and de-odorizing treatment while the wastewater is purified, it can be effectively prevented that in the process of wastewater treatment, deterioration causes foul smell, and then the requirements of customers can be better met.

The invention relates to the technical field of cables. The invention further discloses a high-temperature silicone rubber cable for the railway rolling stock current collector. The cable comprises aflexible memory metal tube with a hollow structure, and a heat insulation layer is arranged on the outer side of the flexible memory metal pipe; six connecting plates which are annularly and uniformlydistributed are fixedly connected between the inner ring of the heat insulation layer and the outer ring of the flexible memory metal pipe; a heat dissipation fiber layer is fixedly filled between the inner ring of the heat insulation layer and the outer ring of the flexible memory metal pipe; a cable core is arranged between two adjacent connecting plates, the cable core is fixedly embedded in the heat dissipation fiber layer, the outer ring of the heat insulation layer is fixedly connected with a shielding layer, the outer ring of the shielding layer is fixedly connected with an insulatinglayer, and the outer ring of the insulating layer is fixedly connected with a silicone rubber protective jacket. According to the high-temperature silicone rubber cable for the railway rolling stock current collector, heat generated by the cable core can be dissipated conveniently, a protective layer outside the cable is effectively prevented from melting, and the conductor of the cable core is not prone to damage due to heating.

A shale light hollow brick is disclosed. The hollow brick is prepared from following raw materials by weight: 35-45 parts of shale, 25-30 parts of gangue, 10-14 of straw, 5-7 parts of clay, 3-5 parts of alumina, 2-4 parts of silica, 1-3 parts of magnesium oxide, 4-6 parts of ferrous ferric oxide, 5-7 parts of corundum, 3-6 parts of chromic oxide, 2-5 parts of silicon carbide and 5-8 parts of titanium dioxide. The beneficial effects of the hollow brick are that: after being fired, the hollow brick can be effectively resistant to heat and corrosion, fracture phenomena are prevented, and heat resistance is improved by 2-3 times.

The invention discloses a biomass fuel combustion boiler, which comprises a bio-boiler body and a burner, a chimney is arranged at the upper end of the bio-boiler body, a boiler door is arranged at one end of the bio-boiler body, and a A fuel door, one side of the fuel door is provided with a fuel tank, one side of the bio-boiler body is provided with a ladder, the outer surface of the ladder is provided with a rubber sleeve, and the other end of the bio-boiler body is provided with a slag remover One side of the burner is provided with a reciprocating fire grate, and one end of the burner is provided with an igniter, and a dust collector is provided below the chimney. A biomass fuel combustion boiler according to the present invention is provided with a rubber sleeve, a fuel tank and a dust collector. The rubber sleeve can prevent slipping and corrosion and play a protective role. It is more convenient to add fuel through the fuel tank. Dust removal, reduce the dust emitted by the smoke exhaust, protect people's health, apply to different working conditions, and bring better prospects for use.

The invention discloses a high-elastic wear-resistant antibacterial regenerated polyester core-spun yarn and a production process thereof, and particularly relates to the technical field of polyestercore-spun yarns. The core-spun yarn comprises a polyester core-spun yarn A and a polyester core-spun yarn B. The polyester core-spun yarn A comprises boron fibers, carbon fibers and basalt fibers; andthe polyester core-spun yarns B take polyimide filaments as core yarns and take polyester staple fibers as covering yarns. The boron fibers, the carbon fibers and the basalt fibers are used in cooperation, so that the heat resistance and the flame retardance of the polyester core-spun yarn can be effectively enhanced, heat insulation and flame retardance treatment can be effectively conducted atthe sewing position of a garment fabric, and the safety performance is improved. A carbon fiber yarn made of the polyester core-spun yarn A material and polyester staple fibers in the polyester core-spun yarn B are matched to be used as covered yarns, and a composite bulked yarn made of the polyester core-spun yarn A material and polyimide filaments in the polyester core-spun yarn B are matched tobe used as core yarns, so that the heat-resistant strength and the flame retardant property of the polyester core-spun yarn can be further improved, and the safety performance is improved.

The invention provides a corrosion-resistant cut shot and a machining method thereof. A compound of the elements such as chromium, molybdenum and tungsten in the formula is effectively resistant to corrosion, is mainly resistant to acid, and particularly has an obvious resisting effect on monobasic acid like hydrochloric acid. The machining method of the corrosion-resistant cut shot is more refined, aerial fog machining is combined with cutting, quenching and tempering are integrated, and all indexes of a cut shot finished product are excellent.

The invention discloses a preparation method of an anti-corrosion and anti-impact PE composite pipe. The anti-corrosion and anti-impact PE composite pipe comprises polyethylene, color master batches, ceramic particles, a compatibilizer, rare earth porcelain sand, a polyolefin fiber fabric and a filler, the content of the polyethylene is 70%-90%, the content of the color masterbatch is 1%-2%, the content of the ceramic particles is 3%-7%, the content of the compatibilizer is 0.5%-0.8%, the content of the rare earth porcelain sand is 1%-3%, the content of the polyolefin fiber fabric is 10%-20%, the content of the lubricant is 1%-10%, the content of the filler is 10.5%-15%, and the content of the filler is 5%-20%. According to the preparation method of the anti-corrosion and anti-impact PE composite pipe, the wall thickness of the pipe body is adjusted for production, in a severe environment, the thickness of the pipe wall is about large, the anti-corrosion degree is higher, meanwhile, the anti-impact degree is also increased, and due to the use of the polyolefin fiber fabric and the ceramic particles of different components, the anti-corrosion and anti-impact PE composite pipe can be better manufactured. The corrosion resistance and the impact resistance of the pipe body are more effective.