43results about How to "Not easy to age and deform" patented technology

The invention relates to the technical field of aluminum alloy ladder preparation, and particularly relates to high-strength antibacterial aluminum alloy for an aluminum alloy ladder and a preparation method thereof. The aluminum alloy comprises a high-strength aluminum alloy matrix and a micro-arc oxidation film, wherein the micro-arc oxidation film is arranged on the surface of the aluminum alloy matrix, the weight of a hole sealing agent on the micro-arc oxidation film is 0.15 g / cm<2> to 0.90 g / cm<2>, and the hole sealing agent covers at least 92% of micropores in the micro-arc oxidation film. The preparation method comprises the steps of smelting metal, modifying, refining and degassing, pouring and forming and performing quenching treatment, aging treatment, micro-arc oxidation and hole sealing treatment, wherein in the step of modifying, nanometer modificators are uniformly dispersed into liquid alloy obtained by smelting; in the step of refining and degassing, 0.23% to 0.38% of hexachloroethane is added to the modified liquid alloy so as to refine and degas; and the aging treatment is divided into four-stage aging treatment. The aluminum alloy prepared by adopting the preparation method has the characteristics of high hardness, high strength, wear resistance, corrosion resistance, good anti-cracking performance, good antibacterial effect, difficulty in aging and deformation and long service life.

The invention relates to a repair method of the vehicle bump pavement of a bridgehead. The repair method comprises the following steps: detecting a disengaging position in an approach slab of a damaged bridge by a detection radar, marking the positions of grouting holes I on the surface of the approach slab and drilling, wherein the grouting holes I reach the hard layer and are distributed in an array manner, the center distance between the adjacent grouting holes I is 10-20 cm, and the disengaging position is enabled to fall into the array range; enabling grouting holes II to penetrate the soft layer and to be crossed with the grouting holes I, and arranging one-way valves for exhausting at two ends of the grouting holes II; grouting the grouting holes I and detecting the slurry filling conditions of the disengaging position, the grouting holes I and the grouting holes II in time by a three-dimensional detection radar, and stopping the grouting when the disengaging position, the grouting holes I and the grouting holes II are filled with slurry; detecting and rechecking the filled part by the detection radar after grouting stopping, and drilling and grouting parts which are not filled with slurry again. The method solves the problem of the difference between settling velocities of the hard layer and the soft layer.

The invention discloses light and thin multi-functional fabric with warm keeping, moisture absorbing and perspiring functions. The light and thin multi-functional fabric with warm keeping, moisture absorbing and perspiring functions has a double-layer structure, the inner layer is composed of hollow far infrared warm keeping fiber, hydrophilic moisture absorbing and perspiring fiber and cotton or viscose in a blending mode, and the inner layer has warm keeping, moisture guiding and perspiring functions; the surface layer is composed of elastic fiber and cotton or viscose in a blending mode, and the surface layer has durable elasticity and moisture absorbing and quick drying functions; a regular air heat insulation cavity is formed between the surface layer and inner layer after being connected, and the heat storage and warm keeping performances are reinforced. The fabric is light and thin and has warm keeping, moisture guiding and quick drying effects, durable size stability and good hand feel; the light and thin multi-functional fabric with warm keeping, moisture absorbing and perspiring functions is especially suitable for underwear, warm clothing and the like.

The invention refers to a kind of dental stone composite board which has fire resistance and waterproof function for decorating in clap and toilet field and the manufacturing method, the dental stone composite board is made up of fire resistance board, binding agent layer and dental stone board, the fire resistance board is on the surface, which is used as working face, the dental board is used as base layer, the binding agent layer is between the fire resisting board and dental stone board. The invention uses reasonable structure design and process of pressing the composite board in vacuum, thus the invention has excellent fire resisting and waterproof and surface wear-resistant performance.

The invention discloses a liquid crystal polyester molding composition and application thereof. The liquid crystal polyester molding composition is prepared from the following components: 30 to 100 parts of liquid crystal polyester, 0 to 30 parts of other thermoplastic polymers and 0 to 70 parts of enhanced packing; based on the total weight of the liquid crystal polyester molding composition, the weight content of a fluorine element is 50ppm to 2000ppm and the weight content of a magnesium element is 0.1ppm to 500ppm. According to the liquid crystal polyester molding composition, the content of the fluorine element in the liquid crystal polyester molding composition is controlled within a range of 50ppm to 2000ppm and the weight content of the magnesium element is controlled within a range of 0.1ppm to 500ppm, so that a fiber self-formation capability of the liquid crystal polyester can be effectively improved; self-formed fibers are induced by the fluorine element to be arrayed and have a direction disordered property; the two elements are synergistically combined so that the liquid crystal polyester molding composition has good high-rigidity performance and the difference of thermal expansibility in vertical and horizontal directions can be remarkably reduced; the liquid crystal polyester molding composition is used as an exhausting blade device material and a prepared product has the advantages of thin walls and light weight; the utilization stability of an exhausting blade device can be remarkably improved; the service life is prolonged in a severe environment; the exhausting blade device has the characteristics of uneasiness of being abraded, aged and deformed, small noises and the like.

The invention relates to a pavement restoration method. The pavement restoration method comprises the steps that a detection radar is utilized for detecting the void positions in a butting plate of a damaged bridge, the positions of grouting holes I are marked on the surface of the butting plate and are drilled, and the grouting holes I are deep to a hard soil layer, and are distributed in an array mode; the distance between the centers of the adjacent grouting holes is 10-20cm and the void positions fall in the array range; all grouting holes II penetrate through a soft soil layer and are intersected with the grouting holes I; the two ends of all the grouting holes are provided with exhausting one-way valves; grouting is carried out on the grouting holes I, and the three-dimensional detection radar is utilized for detecting the filling conditions of slurry in the void positions, all the grouting holes I and all the grouting holes II, and the grouting is stopped when the void positions, all the grouting holes I and all the grouting holes II are filled with slurry; after the grouting is stopped, the detecting radar is utilized for detecting and rechecking the filled parts, and drilling and grouting are carried out again on the parts without being filled with the slurry. The pavement restoration method has the advantage that the problem of the settling velocity difference between the hard soil layer and the soft soil layer is solved.

The invention belongs to the technical field of power switchesh, in particular to a power switch with waterproof and dustproof functions and an installation method thereof. The power switch comprisesa power switch body, one side of the power switch body is provided with a panel. An inner shell and an outer shell are arranged on the outer side of the power switch body; the openings of the inner shell and the outer shell are movably connected with a mask; one side of the mask is rotationally connected with a knob; one side, close to the mask, of the knob is fixedly connected with one end of a rotating shaft, the other end of the rotating shaft extends to the inner side of the inner shell and is fixedly connected with one side of a turntable, a pushing shaft is fixedly connected to the top of the other side of the turntable, a frame slidably sleeves the outer side of the pushing shaft, and the top end of a pressing rod is fixedly connected on the bottom side of the frame. The power switch is reasonable in design, the opening and the opening area of the mask are effectively reduced, the sealing part is conveniently arranged, the sealing part is not prone to aging and deformation, reliability is high, the service life of the power switch is prolonged, on-off action of the power switch is conveniently achieved, and the power switch is suitable for application and popularization.

The invention provides a benzophenanthrene derivative and an organic light-emitting device thereof, and relates to the technical field of organic photoelectric materials. The provided benzophenanthrene derivative has excellent hole transport performance and high heat resistance stability, needle holes cannot be formed in a formed film easily and the formed film cannot be aged or deform easily, thefilm is applied to the organic light-emitting device as a hole transport material, the light-emitting efficiency of the device can be improved, the service life of the device is prolonged, and furthermore, the driving voltage of the device can be reduced. The provided benzophenanthrene derivative can further serve as a covering layer, and thus, the light-emitting efficiency of the device is improved.

The invention relates to a dam reinforcement method and a reinforcing sizing agent. The dam reinforcement method comprises the following steps: selecting a section of dam needing to be reinforced, and manufacturing an enclosing cover adapting to a dam body according to the shape of the dam body; placing the enclosing cover on the outer side of the dam body, wherein the lower end of the enclosing cover is inserted in underwater silts and the upper end of the enclosing cover emerges from water, and side panels of the enclosing panel are arranged close to the outside surface of the dam body and cling to the outside surface of the dam body through sealing strips; placing a plurality of grouting lines in the enclosing cover in sequence, wherein the lower ends of the grouting lines extend into the bottom of the enclosing cover; grouting grouting holes and detecting the sizing agent filling condition immediately by an underwater camera, filling the inner space of the enclosing cover with the sizing agent from the bottom of the enclosing cover gradually, and draining water accumulated in the inner space from the top of the enclosing cover, and when the sizing agent overflows from the top of the enclosing cover, stopping grouting; after the sizing agent is fully solidified, taking down the enclosing cover and carrying out hole sealing on the grouting lines; forming a waterproof reinforcing structure layer on the outer side of the dam after the sizing agent is solidified to prevent water from seeping into the dam body or damaging the dam body due to erosion of water to the surface of the dam body.

The invention relates to a method for repairing a bridgehead abutment position of a road surface. The method comprises the steps that a detecting radar is used for detecting the void position in a damaged bridge approach slab, the positions of first injected holes are marked in the surface of the approach slab and are drilled, the first injected holes reach a hard soil layer, the first injected holes are arranged in an array way, the central distance of the adjacent first injected holes is 10-20cm, the void position drops in the array range, second injected holes communicate a soft soil layer and are intersected with the first injected holes, the two ends of each second injected hole are provided with an exhaust single-way valve respectively, the first injected holes are grouted, a three-dimensional detecting radar is used for detecting the void position and the slurry filling condition inside the first injected holes and the second injected holes in time, and when the void position, the first injected holes and the second injected holes are filled with the slurry, the grouting is stopped; the detecting radar is used again for detecting and re-checking the filling position after the grouting is finished, and the positions which are not filled with the slurry are drilled and grouted again. The method solves the problem that the hard soil layer and the soft soil layer are different in sinking speed.

The invention relates to rubber for shaft sleeves. The rubber is prepared from the following raw materials in parts by weight: 60-80 parts of butadiene-acrylonitrile rubber, 6-9 parts of softening plasticizer, 8-11 parts of foamer, 4-9 parts of nano white carbon black, 2-5 parts of catalyst, 3-6 parts of vulcanizing agent, 7-12 parts of naphthenic oil, 6-9 parts of zinc borate, 2-4 parts of sulfur and 1-3 parts of reinforcing powder. The rubber has the beneficial effects that the rubber material disclosed by the invention is good in heat resistance and is not prone to aging deformation.

The invention relates to the technical field of aluminum alloy ladder preparation, and particularly relates to high-strength antibacterial aluminum alloy for an aluminum alloy ladder and a preparation method thereof. The aluminum alloy comprises a high-strength aluminum alloy matrix and a micro-arc oxidation film, wherein the micro-arc oxidation film is arranged on the surface of the aluminum alloy matrix, the weight of a hole sealing agent on the micro-arc oxidation film is 0.15 g / cm<2> to 0.90 g / cm<2>, and the hole sealing agent covers at least 92% of micropores in the micro-arc oxidation film. The preparation method comprises the steps of smelting metal, modifying, refining and degassing, pouring and forming and performing quenching treatment, aging treatment, micro-arc oxidation and hole sealing treatment, wherein in the step of modifying, nanometer modificators are uniformly dispersed into liquid alloy obtained by smelting; in the step of refining and degassing, 0.23% to 0.38% of hexachloroethane is added to the modified liquid alloy so as to refine and degas; and the aging treatment is divided into four-stage aging treatment. The aluminum alloy prepared by adopting the preparation method has the characteristics of high hardness, high strength, wear resistance, corrosion resistance, good anti-cracking performance, good antibacterial effect, difficulty in aging and deformation and long service life.

The invention discloses light and thin multi-functional fabric with warm keeping, moisture absorbing and perspiring functions. The light and thin multi-functional fabric with warm keeping, moisture absorbing and perspiring functions has a double-layer structure, the inner layer is composed of hollow far infrared warm keeping fiber, hydrophilic moisture absorbing and perspiring fiber and cotton or viscose in a blending mode, and the inner layer has warm keeping, moisture guiding and perspiring functions; the surface layer is composed of elastic fiber and cotton or viscose in a blending mode, and the surface layer has durable elasticity and moisture absorbing and quick drying functions; a regular air heat insulation cavity is formed between the surface layer and inner layer after being connected, and the heat storage and warm keeping performances are reinforced. The fabric is light and thin and has warm keeping, moisture guiding and quick drying effects, durable size stability and good hand feel; the light and thin multi-functional fabric with warm keeping, moisture absorbing and perspiring functions is especially suitable for underwear, warm clothing and the like.

The invention discloses a high-watertightness solar module edge-sealing adhesive tape, comprising a base material layer, a functional adhesive layer and a release material layer arranged in succession from top to bottom.The functional adhesive layer is formed by: dissolving rubber adhesive in an organic solvent to form a solution and applying the solution to the release material layer; the adhesive tape is characterized in that the rubber adhesive is made from the following components according to parts by weight: 80-120 parts of a main agent and 20-30 parts of a viscosifier, wherein the main agent at least comprises butyl rubber.Since the rubber adhesive in the middle functional adhesive layer uses the butyl rubber of high watertightness as the main agent, watertightness of the whole adhesive tape is greatly enhanced; in the adhesive tape compared with original acrylic foam adhesive, the adhesive layer formed by curing of butyl rubber is better in softness and application performance, and thereby, this adhesive layer is imparted same bonding force through only half of usage of original acrylic foam adhesive, helping reduce overall thickness of the adhesive tape.

The invention discloses a corrosion-resistance ultrahard aluminum alloy material and a production process. The corrosion-resistance ultrahard aluminum alloy material comprises the following raw materials in percentage by mass: 1.5-3% of Cu, 1.8-2.5% of Mg, 7.5-8.4% of Zn, 0.03-0.06% of Ti, 0.55-2.5% of W, 0.05-0.25% of Zr, 0.05-0.08% of Dy, 0.05-0.15% of Gd, 0.3-0.45% of Er, 0.3-0.4% of Ce, 0-0.1%of Si, 0-0.15% of Fe, and the balance of aluminum. The corrosion-resistance ultrahard aluminum alloy material has the advantages of high hardness, high strength, wear resistance, corrosion resistanceand excellent crack resistance, can be used in an extreme environment, is not easy to age and deform, long in service life, and is suitable for producing aeroengine compressor parts, secondly structural parts of rockets, guided missiles and high-speed aircrafts.

Disclosed are a liquid crystal polyester molded composition and application thereof. The composition comprises the following components: 30-100 parts of liquid crystal polyester, 0-30 parts of other thermoplastic polymers, and 0-70 parts of reinforcing filler. On the basis of the total weight of the liquid crystal polyester molded composition, the weight content of fluorine is 50-2,000 ppm, and the weight content of magnesium is 0.1-500 ppm. According to the present invention, the content of fluorine in the liquid crystal polyester molded composition is controlled within the range of 50-2,000 ppm, and the content of magnesium is controlled within the range of 0.1-500 ppm, thereby effectively improving the autologous fiber ability of the liquid crystal polyester. Moreover, induced autologous fiber arrangement of fluorine has the directional disorder characteristic. Synergistic combination of the two elements can significantly reduce the difference of thermal expansion in vertical and horizontal directions while enabling the liquid crystal polyester molded composition to have excellent rigidity. Therefore, workpieces prepared from the liquid crystal polyester molded composition as the material of an exhaust blade are thin in wall, light in weight and low in noise, can significantly improve usage stability of the exhaust blade, prolong the service life in severe environment, and are not liable to wear, age or deform.

The invention discloses a pressure relief building board using modified expanded and vitrified beads and an installation structure thereof. The pressure relief building board includes a board body, the board body consists of a board skeleton, modified expanded and vitrified beads, basalt fiber, and a plate skeleton, and a cementing material coating the board skeleton and the components, and the cementing material is added with a high quality compound, low-alkali and low hydration heat permeation resistant agent, thus solving the problems of easy aging and deformation, high maintenance cost, difficult breakage, sharp fragment and large impact energy after breakage, and lack of processing and cutting ability according to the actual needs of project sites in existing pressure relief boards. The invention provides the novel pressure relief board with the advantages of light weight, pressure relief, no toxicity or harm, fire prevention, durability, friableness, thermal insulation, sound insulation, waterproofness and the like and certain bearing capacity.

The invention relates to the field of rubber, in particular to rubber used on a shaft sleeve assembly of a fan. The rubber is prepared by compounding and vulcanizing 100 parts by mass of nitrile rubber, 4-6 parts by mass of zinc oxide, 1-3 parts by mass of stearic acid, 0.5-0.8 part by mass of sulfur, 0.8-1.2 parts by mass of an accelerator TMTD (Tetramethyl Thiuram Disulfide), 1.3-1.8 parts by mass of a vulcanization accelerator, 35-40 parts by mass of semi-reinforcing carbon block, 10-15 parts by mass of carbon black 330, 18-22 parts of barium sulfate, 4-6 parts of vaseline and 0.8-1.2 parts of aging resistant 4010 NA. The rubber used on the shaft sleeve assembly of the fan has the advantages of high heat resistance, difficulty in causing aging and deformation of a rubber part and long service life of the shaft sleeve assembly.

The invention relates to the field of nuclear reactors, and provides a hydraulic cylinder and a control rod hydraulic drive system. The hydraulic cylinder includes an outer casing and an inner casing. The inner chamber of the outer casing includes an upper chamber and a lower chamber communicating with the upper chamber. A stepped surface is formed between the upper chamber and the lower chamber, and a hydraulic ring groove is opened on the stepped surface. , the side wall of the outer casing is provided with a water inlet channel communicating with the hydraulic ring groove; the inner casing includes an upper casing located in the upper cavity and a lower casing located in the lower cavity, and the outer walls of the upper casing and the lower casing are provided with The first ring groove, the first ring groove is provided with an elastic support ring and a piston ring assembly sequentially along its radial direction from inside to outside, and the elastic support ring is used to drive the piston ring assembly part out of the first ring groove, so that the piston ring The assembly is in sliding and sealing engagement with the inner wall of the outer casing. The control rod hydraulic drive system includes a hydraulic cylinder. The invention utilizes the elastic support ring to realize the suspension support for the inner sleeve cylinder, avoids direct contact and friction between the inner sleeve cylinder and the outer sleeve cylinder, and prolongs the service life of the hydraulic cylinder.

The invention provides a corrosion-resistant superhard alloy material, which comprise the following components in percentage by mass: 7.4-8.3% of Zn, 1.7-2.2% of Mg, 0.4-0.5% of Er, 0.03-0.06% of Ti,0.52-2.5% of W, 1.5-3% of Cu, 0.05-0.25% of Zr, 0.05-0.08% of Dy, 0.05-0.15% of Gd, 0.3-0.4% of Ce, 0-0.1% of Si, 0-0.16% of Fe and the balance of aluminum. The material has the advantages of high hardness, high strength and excellent wear resistance, corrosion resistance and crack resistance, and can be used in extreme environments.

The invention relates to a bridge-head vehicle bump road surface repairing method for solving the problem of the settling velocity difference between a hard soil layer and a soft soil layer. The bridge-head vehicle bump road surface repairing method comprises the steps that a void position in an access board of a damaged bridge is detected through detection radar, the positions of first grouting holes are marked on the surface of the access board, drilling is conducted on the positions of the first grouting holes, the first grouting holes are deep enough to reach the hard soil layer, the first grouting holes are arranged in an array mode, the center-to-center distance between every two adjacent first grouting holes is 10-20 cm, and the void position is made to be located within the array range; all second grouting holes penetrate through the soft soil layer and intersect with the first grouting holes, and exhaust one-way valves are arranged at the two ends of each second grouting hole; grouting is conducted on the first grouting holes, the void position and the internal grout filling conditions of all the first grouting holes and all the second grouting holes are detected immediately through three-dimensional detection radar, and grouting is stopped when the void position, all the first grouting holes and all the second grouting holes are filled with grout; and the filling positions are detected and re-checked again through the detection radar after grouting is stopped, and the positions which are not filled with grout are drilled and grouted again. By the adoption of the bridge-head vehicle bump road surface repairing method, the problem of the settling velocity difference between the hard soil layer and the soft soil layer is solved.

The invention relates to a processing method of a diffusion plate and belongs to the field of manufacturing of diffusion plates. The processing method of the diffusion plate comprises the steps of pretreatment, stirring treatment, extrusion treatment, impurity removal, die forming, diffusion plate forming and the like. In pretreatment, polymethyl methacrylate and diffusion powder are respectivelydried at a drying temperature of 80 DEG C; and in stirring treatment, 100KG of the pretreated polymethyl methacrylate and 0.8-2.8KG of the pretreated diffusion powder are taken for mixing stirring treatment at a stirring speed of 800 r / min. The processing method of the diffusion plate has the beneficial effects that the diffusion plate processed by the method is good in impact resistance, has theheat softening temperature reaching 100 DEG C or more, can adapt to high-temperature application environment and is not prone to aging or deformation.

The invention relates to a method for repairing tunnel damage, which includes: detecting the position of the void and water gushing channel in the damaged tunnel by using detection radar; drilling the lining surface at the void position to obtain a grouting hole and installing the Grouting pipe, the grouting pipe extends into the void, drills a hole at the outlet of the water gushing channel to obtain a grouting hole 1 whose diameter is larger than the outlet of the water gushing channel, and the inner seal of the grouting hole 1 is matched with the grouting pipe 1; for the grouting hole and the grouting hole 1 to perform grouting and use the detection radar to detect the slurry filling inside the void and water gushing channel in real time, and stop grouting when the slurry is full of the void and water gushing channel; after the slurry solidifies and reaches the final strength, A number of longitudinal and transverse grooves extending from the contour line to the surrounding surface are opened on the lining surface; all the above-mentioned grooves are filled with slurry and cured; the empty space and the surrounding adjacent parts are fixed and strengthened, and the accumulated water in the seepage channel is discharged .

The invention relates to a pavement rehabilitation method. The pavement rehabilitation method comprises the following steps that detection radar is used for detecting the disengagement position of a butt strap of a damaged bridge, the positions of first grouting holes are marked on the surface of the butt strap and are drilled, the first grouting holes reach a hard stratum and are arranged in an array mode, the center-to-center spacing of the adjacent first grouting holes is 10-20 cm, and the disengagement position falls into the array range; second grouting holes penetrate through the hard stratum and intersect with the first grouting holes, and the two ends of each second grouting hole are provided with one-way valves for exhausting air; the first grouting holes are grouted, the three-dimensional detection radar is used for detecting grout filling conditions in the disengagement position, the first grouting holes and the second grouting holes, and grouting is stopped when the disengagement position, the first grouting holes and the second grouting holes are full of the grout; and after grouting is stopped, the detection radar is used for detecting and examining the filling portions again, and the portions which are not filled with grout are drilled and grouted again. The problem that the sedimentation rates of the hard stratum and a soft soil layer are different is solved through the method.

The invention relates to a method for repairing a bridgehead abutment position of a road surface. The method comprises the steps that a detecting radar is used for detecting the void position in a damaged bridge approach slab, the positions of first injected holes are marked in the surface of the approach slab and are drilled, the first injected holes reach a hard soil layer, the first injected holes are arranged in an array way, the central distance of the adjacent first injected holes is 10-20cm, the void position drops in the array range, second injected holes communicate a soft soil layer and are intersected with the first injected holes, the two ends of each second injected hole are provided with an exhaust single-way valve respectively, the first injected holes are grouted, a three-dimensional detecting radar is used for detecting the void position and the slurry filling condition inside the first injected holes and the second injected holes in time, and when the void position, the first injected holes and the second injected holes are filled with the slurry, the grouting is stopped; the detecting radar is used again for detecting and re-checking the filling position after the grouting is finished, and the positions which are not filled with the slurry are drilled and grouted again. The method solves the problem that the hard soil layer and the soft soil layer are different in sinking speed.

The invention discloses a preparation method of an anti-impact damping rubber material and belongs to the technical field of preparation of rubber materials. The method includes the steps of: 1) stirring magnesium chloride, a surfactant OP-10, white carbon black, carbon black and the like and performing ultrasonic vibration, adding ammonia water and allowing the mixture to stand, and filtering the mixture and washing a filter residue to obtain a core-shell structure composite material; 2) drying and calcining the composite material to obtain a reinforcing filler, and mixing natural rubber, eucommia ulmoides gum and butadiene rubber, and heat-mixing the components with stearic acid, an anti-aging agent, an accelerant and the like, and adding the reinforcing filler and a silane coupling agent to mix the components to obtain a mixed rubber compound; and 3) finally shaping the mixed rubber compound into strips and vulcanizing the rubber strips to produce the anti-impact damping rubber material. The preparation method is simple. The anti-impact damping rubber material has high anti-impact strength, has damping function and excellent anti-wear property, is not liable to age and deform, is greatly improved in practicability and prolonged in service life, and has wide market application prospect.