47results about How to "With seal" patented technology

The invention discloses an inorganic nanocementing agent, which is characterized by corrosion prevention, fire- proof, wearing resistant, acid-resistant and alkali reisistant. It takes silicasol and potassium metasilicate as raw material, and produced by adding a little amount of organic raw material or inorganic raw material, and the comprised raw material and their proportion by weight are as follows: nanocolloidal silica 10 -15, potassium metasilicate 20- 30, polyvinyl alcohol 1- 5, nano titanium dioxide 3- 6, titanium dioxide titanium dioxide 7- 12, calcining porcelain clay 2- 6, porcelain clay 2- 6, silicon zirconite powder 10- 14, barium sulfate powder and water 8- 15; or as that: nanocolloidal silica 10 -15, potassium metasilicate 20- 30, polyvinyl alcohol 1- 5, mica titanium 20- 30, nano zinc oxide 7- 12, high-alumina powder 2- 6, charring silicon 10- 18, barite powder 8- 16, and clean water 8- 15. The product will not deform at 1200 Deg. C, it can form permeating high- rigidity compact coating on metal surface, and there is no permission, cracking and separation when the gelatin is heated to 300- 500 Deg. C for several hours and for more than fives times of shock cooling and heating.

The invention relates to a manufacturing method of a plant resin specimen for teaching. The method comprises the following steps that (1) plant specimens are collected and are subjected to conventional pretreatment; (2) anhydrous silica gel is ground into powder; the powdery anhydrous silica gel and aluminum oxide powder are uniformly mixed according to a certain proportion to obtain mixed drying powder; (3) the plant specimens are put into a drying box, are completely embedded by the obtained mixed drying powder, and are then subjected to drying treatment; (4) the dried and treated plant specimens are taken out from the drying box, the redundant mixed drying power on the surface is cleared away, and then, a 30W ultraviolet lamp is irradiated for 3 to 5 minutes for sterilization inactivation treatment; (5) the treated plant specimens are put into a mold to be subjected to epoxy resin glue embedding; (6) after the epoxy resin glue is solidified, the plant resin specimen is obtained. The specimen manufactured by the method has the characteristics of transparency, sealing, oxidation resistance, long-time color retention, lightweight, portability, no toxicity, no harm and the like; the problem that the existing resin specimen cannot perfectly protect the plant pigment can be solved.

A multifunctional paste-like waterproof agent specifically consists of a substrate and a composite additive; wherein, the possible components of the substrate comprise: a coagulant, an expansion agent, a reinforcing agent, magnesium stearate and/or sodium silicate. The coagulant is copper sulfate, the expansion agent is aluminium potassium sulfate, and the reinforcing agent is aluminium chloride. The ratio of the base material and the composite additive in the multifunctional paste-like waterproof agent by mass is 1:2 to 2:1. The invention further claims a preparation method for protecting the multifunctional paste-like waterproof agent, and the preparation method comprises the steps: the substrate and the composite additive are firstly respectively prepared; the two are mixed and then cooled; and the multifunctional paste-like waterproof agent is obtained. The waterproof agent has prominent effects of infiltration, sealing, hydrophobia, thermal insulation, and the like, thereby being significantly better than similar products in the prior art. The multifunctional paste-like waterproof agent has enormous predictable economic value and social value.

The invention provides a high-temperature ceramic-based abradable seal coating structure and a preparation method thereof. The coating structure comprises a base layer and an a surface layer, whereinNiCoCrAlTaY high-temperature antioxidant materials are sequentially laminated on the surface of a base body of a high-temperature alloy turbine outer ring part, and the surface layer is formed by mixing Sc2O3 and Y2O3 binary rare earth oxide with ZrO2 materials, CaF2 materials and polyphenyl ester materials; and in the surface layer materials, the polyphenyl ester is a pore-forming material, and CaF2 is a high-temperature antifriction self-lubricating ceramic material. The high-temperature ceramic-based abradable seal coating can be applied to sealing of gas paths of an aero-engine and a ground gas turbine high-pressure turbine, the working temperature can reach 1300 DEG C, and the requirement for sealing the gas paths of the aero-engine and the ground gas turbine high-pressure turbine.

The invention relates to a Luneberg lens reflector and a passive radar reflection ball comprising the Luneberg lens reflector. The Luneberg lens reflector is formed by printing through the 3D technology, the passive radar reflection ball comprises a wave lens reflector ball, the Luneberg lens reflector further comprises a chassis and a hollow shell, the chassis is fixedly connected to the bottom of the shell, and a handle is arranged on the outer wall of the shell; the luneberg lens reflector is arranged in the shell, the dielectric constant of the dielectric sphere layer is gradually reducedfrom the sphere center to the outside, and a reflection area is arranged at the bottom of the luneberg lens reflector. The Luneberg lens reflector has a better reflection effect, the passive radar reflection balls are high in anti-interference capability, a plurality of passive radar reflection balls are connected in series to form a passive cascaded radar reflection ball false target, and the problems that the reflection area is limited and reflection signals are interfered by the environment in passive radar signal simulation are solved.

The invention discloses an environment-friendly fragrant aluminum-wood composite board. The composite board comprises a first fragrance coating layer, a first paint coating layer, a first aluminum sheet, a first glue coating layer and a base board, wherein the first paint coating layer is arranged on one surface of the first aluminum sheet, the first fragrance coating layer is arranged on the first paint coating layer, and the other surface of the first aluminum sheet is connected with the base board through the first glue coating layer. The composite board also comprises a second fragrance coating layer, a second paint coating layer, a second aluminum sheet and a second glue coating layer, the first paint coating layer is arranged on one surface of the first aluminum sheet, the first fragrance coating layer is arranged on the first paint coating layer, and the other surface of the first aluminum sheet is connected with the upper surface of the base board through the first glue coating layer.,wherein the second paint coating layer is arranged on one surface of the second aluminum sheet, the second fragrance coating layer is arranged on the second paint coating layer, and the other surface of the second aluminum sheet is connected with the lower surface of the base board through the second glue coating layer. The composite board added with a fragrance has a lasting and controllable fragrant smell which is stronger after the composite board is rubbed, and also has a self-closing function.

The invention relates to a capacitive voltage divider, in particular to a high-voltage capacitive voltage divider used for 150kV, which belongs to the technical field of capacitive voltage dividers. The capacitive voltage divider comprises a high-voltage epoxy cylinder, wherein an upper flange and a lower flange are respectively hermetically connected to the upper end and the lower end of the high-voltage epoxy cylinder, a high-voltage polar plate is arranged on the inner side surface of the upper flange, and a led-out screw rod which is connected to the upper end of the high-voltage polar plate penetrates through the upper flange and is connected with a discharging ball. A sampling polar plate is arranged on the inner side surface of the lower flange, and a led-out screw rod which is connected to the lower end of the sampling polar plate penetrates through the lower flange and is connected with a capacitive voltage dividing plate. The lower end of the lower flange is connected with the base, a socket base is arranged on the base, and a socket is fixedly arranged on the socket base. The high-voltage capacitive voltage divider adopting the high-voltage epoxy cylinder as the cylinder has the advantages of seal property, little possibility of deforming, high voltage resistance, convenience in processing and cost saving. Due to the adoption of an oil immersion type structure, the voltage resistance can be improved, and the size can be reduced. The high-voltage capacitive voltage divider can measure high voltage which is lower than 150KV, the sampling non-load voltage ratio is adjustable, and the feasibility is strong.

The invention discloses high-wear-resistance lubricating oil, which is prepared from the following raw materials by weight: 80 to 90 parts of base oil, 2 to 3 parts of nano tungsten disulfide, 0.4 to0.6 part of a surfactant, 0.8 to 1 parts of a defoamer and 1.5 to 2 parts of an antiwear additive. The invention also discloses a preparation method of the lubricating oil. According to the lubricating oil, the nano tungsten disulfide is uniformly dispersed in the lubricating oil through the compounding of the nano tungsten disulfide and the surfactant, and the anti-wear and anti-friction effect of the nano-particles is exerted; by adding the anti-wear additive, a composite protective film is generated at the bearing friction interface and has excellent anti-wear and anti-friction performance;the lubricating oil is processed through special processing equipment, the lubricating oil can be fully, thoroughly and efficiently blended and processed so that components are evenly dispersed in the lubricating oil to exert corresponding effects and to ensure quality of the lubricating oil. The wear-resistant high-quality lubricating oil is obtained and suitable for tapered roller bearings, heavy-duty gear and other fields.

The invention relates to an engine packaging box with a sealing function, which comprises a box body (1), a fixed bracket (2) and a damping device (3), wherein the box body (1) comprises a box bottom (9) and a box cover (8) which are connected by a hasp; the fixed bracket (2) is arranged in the box body (1); the damping device (3) is arranged between the fixed bracket (2) and the box body (1); the box body (1) comprises a metal frame (4), a glass reinforced plastic inner layer (5), a glass reinforced plastic outer layer (6) and a thermal insulating layer (7); the glass reinforced plastic inner layer (5) is arranged inside the metal frame (4); and the thermal insulating layer (7) and the glass reinforced plastic outer layer (6) are arranged on the outer layer of the metal frame (4) from near position to far position. The engine packaging box with the sealing function, which is specially provided by the invention, has a humanized structural design; the protection level can be improved, so that the packaging box can be used for storing and transporting aircraft engines in various harsh environments (such as high temperature, high humidity and high salt mist) without being limited by the environmental conditions.

The present invention relates to the field of cables, in particular to a tensile power cable, include multiple groups of cable cores, the cable core comprises a tin-plated copper wire conductor, a polyether ether ketone insulating layer extruded on the outer part of the tin-plated copper wire conductor, and a tensile aramid round rope is arranged at the central position of the cable, the outer part of the tensile aramid round rope is extruded with a tensile device, the tensile device comprises a tensile layer 1 which is extruded outside the tensile aramid round rope, a tensile layer 2 extrudedoutside the tensile layer 1, and a tensile layer 3 which is extruded outside the tensile layer 2, the cable cores are twisted with the tensile device, the aramid braided tensile layer is wound aroundthe outer part of the cable cores, the aramid braided tensile layer is wrapped with a copper wire braided armour shielding layer, the copper wire braided armour shielding layer is extruded with a polytetrafluoroethylene outer sheath, and the tensile layer 1, the tensile layer 2 and the tensile layer 3 made of polyvinylamine improve the whole tensile and corrosion resistance of the cable.

The invention discloses a sock with the high breathable and air exchange functions. The sock comprises a sock body, a sock toe, a breathable net and a sock tail. The sock toe is arranged at one end of the sock body. The sock tail is arranged at the other end of the sock body. The breathable net is arranged in the middle of the sock body. A soft cushion is arranged at the end, close to the breathable net, of the bottom of the inner side of the sock toe. Two sets of first laces are arranged on the tops of the two sides of the sock tail, and a sock top is arranged on the top of the sock body. By adopting the three-section design, the breathable net is designed in the middle section, the breathability of the sock is effectively improved, the breathable effect of the sock can be further improved through cooperation of breathable layers of the sock toe and the sock tail, an annular cushion is arranged at the sock top at the top of the sock tail, and cushion protrusions are uniformly arranged on the inner side of the annular cushion, the sock is more comfortable to wear, and the sock has the certain breathable effect.

An explosion-proof conjunction box for electric heating belongs to the technical field of energy saving of electric heating. The conjunction box comprises a cylindrical casing with a cavity, an end cap in the top of the cylindrical casing, and a flange in the bottom; the flange is provided with terminals connected with electric heating tubes; a connecting line terminal row is arranged in the conjunction box, the bottom of the flange is connected with thermal-insulation sleeves which are penetrated by the terminals of the electric heating tubes, and an incoming cable compressing head is arranged outside the conjunction box; and a boss is arranged in the cylindrical casing, and the connecting line terminal row is mounted on the boss via bolts. The explosion-proof conjunction box is simple and reasonable in structure, easy to assemble, high in overpressure resistant, fastening, sealing and explosion proof performances, is designed and manufactured according to requirements in sections 1 and 2 for electrical equipment in the explosion environments of GB3836.1-2000 and GB3836.2-2000, and satisfies standards and requirements in the technical field of explosion-proof electric heating.

The invention discloses a program-controlled quantitative sealing machine for microbial detection, which includes a casing, a driving roller, a passive roller, a heat preservation cover, a temperature sensor, a temperature safety switch, an induction switch, a main control circuit board, a motor, a pulley, a synchronous belt, Slip rings, carbon brush holders, outlets, inlets, uprights and bottom plates, and the driving roller, driven roller, main control circuit board, pulleys, synchronous belts, slip rings and carbon brush holders are all arranged inside. The device has simple structure, simple and convenient operation, and is convenient for batch processing and production. It does not need manual intervention and adjustment. It has automatic sensing and sealing. After sealing, it will automatically stop and enter the standby state, saving energy and reducing power consumption. The device has cleaning windows and counting functions. , convenient for cleaning and counting; the device adopts modular design, low production cost and failure rate, easy to install, maintain and replace, with different rubber gaskets, it can be used for sealing various types of quantitative detection discs, and has a wide range of applications.

The invention discloses colorful crystal glass compounded with a plate layer. The colorful crystal glass compounded with the plate layer comprises a glass layer, wherein a first glue layer, colorful film layers, a second glue layer and a plate layer are sequentially arranged on the glass layer. As the plate layer is arranged on a contact surface, the tension generated by shrinking similar foaming materials can be effectively avoided in a sequent production process, so that the phenomenon that bubbles are generated in colorful films around the glass can be avoided, and thus the quality of products is correspondingly improved; due to the arrangement of the double-sided damping glue layer, the colorful crystal glass compounded with the plate layer has the advantages of damping, reducing noise, insulating heat, sealing and being anti-corrosion, waterproof, non-toxic, high in adhesion, anti-aging and stone-compact-resistant. The water-based silica gel colorful film layer has excellent weather fastness, resistance to ultraviolet radiation, is friendly to human body, and rejects and has no heavy metal harmful component, has no secondary pollution during use, can meet the individual and various decorative design requirements, is suitable for large-scale continuous production of production lines and can be used for reprocessing by cutting, grinding, drilling and laminating glue.

The utility model discloses a 1250A bus connecting device. The 1250A bus connecting device comprises a conductive block and more than one contact assembling assembly; the contact assembling assembly comprises a plurality of contact pieces A and contact pieces B which are arranged alternately; the plurality of contact pieces A and the plurality of contact pieces B are respectively connected with the conductive block in a clamping mode; the outer surface of the conductive block and the outer surfaces of the contact assembling assemblies are provided with a bus insulating sleeve; the bus insulating sleeve wraps the conductive block and the contact assembling assemblies. According to the 1250A bus connecting device, the effective area of electric contact between the contact pieces and the contact box of a ring main unit is increased; contact heating points are dispersed; local temperature rise is alleviated; conductive performance is improved; the bus contact piece groups can be in pressure connection with the conductive block, so that deviation can be allowed to occur when a bus connector is connected with the contact box.

The invention discloses a high flexibility sheath-free aluminum alloy conductor power cable. The high flexibility sheath-free aluminum alloy conductor power cable comprises cable cores, and each cablecore is twisted by several insulating line cores; the gaps of the cable cores are provided with high-flame-resistance pp net-shaped filling ropes, the cable cores are wound by glass fiber belts, theglass fiber belts are extruded by internal sheaths, fireproof heat insulating layers are arranged outside the internal sheaths, zinc steel belt armored layers are plated outside the fireproof heat insulating layers, high-flame-resistant belt rubber thermal shrinkage pipes are arranged outside the zinc steel belt armored layers, and the high flame resistant belt rubber thermal shrinkage pipes are coated with fireproof paint. The high flexibility sheath aluminum alloy conductor power cable has fire resistance, high temperature resistance, flame resistance, thermal insulating performance and thelike.

The invention belongs to the technical field of information equipment waterproofing, especially information equipment with good waterproofing performance. Aiming at the poor waterproofing effect of the existing information equipments, the following options are proposed: including hosts, a housing and a heat sink, the front surface of the shell is provided with a display screen, and the outer surface of the display screen is provided with a blue light shielding plate, the upper surface of the host computer is provided with a keyboard and a touch pad, the host computer is internally provided with a circuit board, the lower surface of the heat dissipation seat is provided with a base, and the interior of the heat dissipation seat is provided with an exhaust fan; grooves are arranged at both sides edge positions of the lower surface of the heat dissipation seat, and four sets of jacks are arranged at both sides edge positions of the upper surface of the base. In the invention, each waterproof part cooperates to form a multiple waterproof structure, which greatly improves the waterproof effect of the equipment, has good heat dissipation property of the information equipment, and can meet different use requirements by changing the placement angle.

The invention relates to a flexible connection device of air conditioner pipes. The flexible connection device of the air conditioner pipes comprises a first pipe, a second pipe, a clamping sleeve anda fastening device. A through hole is formed in the clamping sleeve. The first pipe and the second pipe are inserted into the through hole of the clamping sleeve from the two ends of the clamping sleeve. The fastening device is clamped to the clamping sleeve. The two ends of the fastening device are provided with a plurality of elastic bands. One end of each elastic band is fixedly connected withthe fastening device, and the other end of each elastic band is provided with a clasp. Buckling grooves matched with the clasps are formed on the first pipe and the second pipe. The clasps are hookedinto the buckling grooves. The clamping sleeve is made of a flexible material. When the fastening device is clamped, the clamping sleeve clamps and fixes the first pipe and the second pipe, and the clamping sleeve seals the first pipe and the second pipe. The flexible connection device of the air conditioner pipes is reasonable and simple in structure, easy to produce and manufacture and convenient to use. The flexible connection device enables the air conditioner pipes to be flexibly connected, and the flexible connection device has great market application and popularization value.