163results about How to "Free from wear and tear" patented technology

The invention discloses a fiber-woven flexible composite traction belt for an elevator and a manufacturing method thereof. The manufacturing method comprises the weaving mode of a fiber woven belt, the manufacturing method of the fiber-woven flexible composite traction belt and the manufacturing method of plastic coating layers. The composite traction belt is formed by weaving steel wires or synthetic fibers; closely adhered plastic coating layers are arranged at the periphery and the internal part of the composite traction belt; and the plastic coating layers are made of elastic thermoplastic plastic. The fiber woven belt (1) is in synthetic fiber weaving, and comprises any one material of aromatic polyamide fibers, glass fibers, ceramic fibers or carbon fibers, or is formed by weaving an optional combination of the aromatic polyamide fibers, the glass fibers, the ceramic fibers and the carbon fibers. The plastic coating layers protect the fiber woven belt from being worn and maintain the woven belt in a tensioned state. The fiber woven belt is in the form of a tiled flat belt, and has the advantages of flat belt structure, higher fatigue resisting performance after long-time bending, longer service life, lighter weight and higher bearing strength.

The invention discloses a large-scale open compound methane tank, including a fermenting tank (1), a gas collection and storage device (2), and an air feeder (3) connected with the fermenting tank, wherein, the fermenting tank includes a plurality of independent fermenting tanks which can be communicated or disconnected mutually. The methane tank also includes the gas collection and storage device, the air feeder, a solar warming device, a charging/discharging device and an anti-encrustation device of the methane tank. When in use, as the structure of the invention is provided with a plurality of independent fermenting tanks, the air can be fed continuously in the raw material renewal process; the charging/discharging device accelerates the material charging and discharging; the gas collection and storage device of the methane tank has low construction cost, a software cover can be opened or retracted according to gas production, a gas collection and storage chamber can be changed according to the methane quantity, the pressure in the gas collection and storage chamber can not be too high, and the solar warming device increases the temperature in the methane tank so as to lead the straw material to produce the methane under the suitable temperature in winter; and a circulating pump is used for spraying the methane fluid onto the straw material through a nozzle so as to avoid encrustation.

The invention discloses a cage type sea cucumber ecology cultivation net cage capable of sinking and floating, which is composed of a cage-type polygonal frame and a net cage cultivation net, wherein, the net cage frame is characterized in that the one end of a vertical buoyancy tube is welded with a vertical buoyancy tube connecting piece and the other end is welded with a vertical buoyancy tube connecting flange; the two ends of a top connection tube are welded with top connection-pegs; the two ends of a bottom connection tube are welded with bottom connection-pegs; the two ends of a bottom internal stretching branch pipe are welded with bottom internal stretching connection-pegs; the flat surface of a bottom anchor connecting piece assembly is designed with a flange plate connected with a vertical buoyancy tube flange, a pinboard connected with the connection-peg of the bottom connection tube in a plug manner, the pinboard connected with the connection-peg of the bottom connection tube in a plug manner, and the pinboard connected with the connection-peg of a bottom internal stretching branch pipe; the lower part of the bottom anchor flat surface is designed with three legs; a straight leg flat profile is of a cambered surface; a balancer is designed inside the vertical buoyancy tube the top connection piece of which is designed with connectors which are connected with air tubes; the cultivation net is designed into an internal hanging type; and the bottom of the net is designed with multiple ways of bar-type structure sea cucumber cultivation adherence with cambered sectional elevation.

The invention provides a system with a superconductive cable (KA) comprises a cable sheath (S) having a surface enclosed by a cryostatic temperature regulator (KR) and/or a cryostatic temperature regulator having an inner surface completely covered by a sliding layer (10) of a non-abrasive material with a lower friction coefficient than steel. A corresponding sliding layer surrounding the cable sheath is permeable to cooling medium. Preferred Features: The sliding layer is made of bronze. The sliding layer surrounding the cable sheath consists of a bronze sheet with holes wound around the sheath. At least the inner tube (7) of the cryostatic temperature regulator facing the cable sheath is corrugated perpendicularly to its longitudinal direction.

The invention provides abrasion-resistant agents. The abrasion-resistant agents are characterized by comprising modified inorganic fibers and nylon, the weight ration between the modified inorganic fibers and the nylon is (1-30) : 100, the modified inorganic fibers are obtained by modifying inorganic fibers through nanofiller, the weight of the nanofiller accounts for 5-40 % of the total weight of the nanofiller and the inorganic fibers, the weight of the inorganic fibers accounts for 60-95 % of the total weight of the nanofiller and the inorganic fibers, and the surface of the modified inorganic fibers is covered by poly-dimethyl diallyl ammonium chloride. The invention further provides a preparation method of the abrasion-resistant agents. The abrasion-resistant agents integrate the advantages of the nylon, the inorganic fibers, and the nanofiller, and have high abrasion-resistant performance. When the abrasion-resistant agents are added into coating, a coating film has good abrasion-resistant performance, and is protected from abrasion.

The invention provides novel non-sintered biological stuffing rapid in biofilm formation and a preparation method thereof, relating to biological stuffing and preparation methods thereof and solving the technical problems that the existing biological stuffing has long biofilm formation time and poor effluent quality in water treatment processes and preparation processes are high in energy consumption and pollute the environment. The biological stuffing is prepared from sepiolite, medical stone, cement, polyvinyl alcohol, sodium alginate, hydrogen peroxide, ferric chloride, manganese sulfate, cobalt chloride and agar. The method comprises the following steps: I. heating and dissolving polyvinyl alcohol and sodium alginate, adding hydrogen peroxide after cooling, and mixing the components uniformly, thus obtaining a liquid mixture; II. mixing the liquid mixture with other solid components, granulating the mixture, putting the granules at normal temperature, drying and sieving the granules, curing the granules at high pressure and low temperature, steam-curing the granules at constant temperature, and cooling the granules at normal temperature, thus obtaining the biological stuffing. Compared with the common ceramsite, the biological stuffing has short biofilm formation time, good effluent quality and coarse surface and is beneficial for microorganism growth. The biological stuffing is applied to the fields of environmental applied materials and sewage treatment.

The invention discloses a compound floor surface layer used for manufacturing a compound floor, a manufacturing process of a surface layer and a process using the surface layer to manufacture the compound floor, aiming at solving the problems of a surface wear-resistant layer of the prior compound floor that a pressing machine is easy to be damaged; the anti-dirt capability is low and the simulation degree is poor. The compound floor surface layer of the invention is formed by compounding a decorative wear-resistant paper and a surface anti-dust paper. A decorative paper dipped with resin is full of Al2O3 grains to form the decorative wear-resistant paper of which the surface is compounded with a wood fiber paper and the surface anti-dust paper which are dipped with resin. The invention has the advantages of high wear-resistance, high dust-resistance and high-simulation, and the damage to the pressing machine can be avoided.

The invention discloses a production method for compound blocking cloth, which relates to the technical field of non-woven fabrics. The production method comprises feeding each raw material, rough opening, fine opening, carding, pre-needling, finish needling and thermal setting, and is characterized in that: raw materials include glass fibers, high-performance stainless steel fibers, ceramic fibers and basalt fibers, and are subjected to PTFE (Polytetrafluoroethylene) treatment after thermal setting. In the invention, a high-performance and high-function fiber combination prepared by compounding the high-performance stainless fibers, ceramic fibers and basalt fibers is added, so that a compound high-temperature-resistant filtering material product with a better using effect is obtained, the suitable temperature can be up to 320 DEG C in maximum, and the warp-direction and weft-direction strength is improved. The product is subjected to the PTFE treatment at a later stage, so that the softness and wear resistance of the fibers are improved, the static electricity resistance of the fibers is enhanced, the bonding firmness between a carpet and base cloth is enhanced, the carpet and the base cloth are protected from being worn or corroded, and the dust stripping property of a carpet surface is improved.

The present invention relates to a method for producing a hot-forming tool and a hot-forming tool with wear protection. The hot-forming tool (1) for hot-forming processing plate-shaped members (2) has at least one cooled upper tool (3) and a lower tool (4). The upper tool or lower tool (3, 4) has a base body (6) equipped with a molded bellow (7). The base body (6) is optimally made of aluminum alloy, and the molded bellow (7) is optimally made of steel. The molded bellow (7) is optimally used as a wear protective plate (9) or a metal coating (18) applied to the base body (6) and can implement good heat transfer (W) to the upper tool or the lower tool (3, 4) through the plate-shaped member (2) in a less thickness as less as possible. To improve heat radiation capacity, the base body (8) corresponding to the upper tool or the lower tool (3, 4) is provided with a cooling channel (5). The cooling channel (5) is used for flow guide of a heat radiation liquid.

The invention relates to a method for interrupting and restoring the melt stream of iron and metal melts in melt channels, in particular tap hole channels, of blast furnaces and drainage channels of melt furnaces. The method is characterized by a transition of the melt stream in the melt channels to the solidified state through cooling so that the melt stream can be interrupted, and by a melting of the solidified melt and a restoration of the melt stream through heating, in particular for re-establishing tapping of blast furnaces.

The invention discloses a multifunctional super-powerful permanent-magnet drive motor with the automatic torque increase and decrease function, the power generation function and the charging function, belongs to the technical field of permanent-magnet motors, and mainly provides a permanent-magnet motor for a vehicle. The multifunctional super-powerful permanent-magnet drive motor with the automatic torque increase and decrease function, the power generation function and the charging function is mainly characterized in that inner layer shell bodies with different diameters and with outer end open are arranged in an outer shell, stator core winding bars which are attached to the inner wall of the outer shell and the inner walls of the inner layer shell bodies serve as stators, a main power shaft is provided with a main shaft magnetism isolation layer liner, main shaft integral rotor magnetic steel bodies and rare-earth permanent magnet stripes, layer integral rotor magnetic steel bodies are arranged between inner layer shell bodies, and between each inner layer shell body and the outer shell respectively, integral precision casting magnetism isolation layer liners are arranged on the inner walls of the layer integral rotor magnetic steel bodies respectively, layer rotor rare-earth permanent magnet stripes are installed in the integral precision casting magnetism isolation layer liners respectively, and the main power shaft is provided with tool driving wheels for vehicle and ship auxiliary equipment. The multifunctional super-powerful permanent-magnet drive motor with the automatic torque increase and decrease function, the power generation function and the charging function has the advantages of increasing driving force of climbing, starting and accelerating power torque, and is mainly applied to automobiles, bullet trains, ships and the like.

The invention relates to an uncoated zero-polar-distance ion exchange membrane and a preparation method thereof. The uncoated zero-polar-distance ion exchange membrane is formed by compounding of a perfluorinated ion exchange resin base film and a reinforcing material, wherein the perfluorinated ion exchange resin base film is prepared from at least four layers of film structure in a multi-layer co-extrusion manner; and the exchange capacities of the films on two sides of the outermost layer are not less than 1.15mmol/g, and the film on at least one side has a taper pin roughened surface of which the depth is 15-30 microns. The preparation method of the uncoated zero-polar-distance ion exchange membrane is also provided by the invention. By adopting the uncoated zero-polar-distance ion exchange membrane, the current efficiency is greatly improved under a high-current density condition; the bath voltage is reduced, and the service life is prolonged.

The invention discloses a coiling device for cable production, and relates to the technical field of cable processing equipment. The coiling device for cable production is used for achieving the purpose that a roller assembly can be independently taken out. The device specifically comprises a bottom plate. A supporting plate is fixedly connected to the outer wall of the top of the bottom plate, acantilever crane is fixedly connected to the outer wall of the top of the supporting plate, a supporting assembly is fixedly connected to the outer wall of the top of the cantilever crane, and a roller assembly is rotationally connected to the outer wall of the top of the supporting assembly. A stand frame is fixedly connected to the outer wall of the top of the bottom plate, a feeding assembly isfixedly connected to the top outer wall of the stand frame, and a connecting assembly is fixedly connected to the outer wall of the top of the bottom plate. According to the coiling device for cableproduction, because the supporting assembly is arranged, and a U-shaped groove is formed in the outer wall of the top of a fixed base, the roller assembly can conveniently go in and out of a device body vertically; and furthermore, because a first rotating wheel and a second rotating wheel are used in cooperation with trunnions, the roller assembly rotates on the outer wall of the top of the supporting assembly, and the roller assembly can be conveniently recycled after coiling work is completed.

The invention discloses a PDC drill bit for coal mine high-position directional drilling. The PDC drill bit comprises a drill bit body, a plurality of fixed cutter wings, movable cutter wings and PDCcutting teeth, wherein the drill bit body and the fixed cutter wings are integrally formed, the movable cutter wings are detachably installed on the drill bit body, and the PDC cutting teeth are welded to the fixed cutter wings and the movable cutter wings. Fixed cutter wing tooth distribution faces extend to the edge of the front end of the drill bit body from the center close to the front end ofthe drill bit body in the radial direction, and gauge protection face connecting tooth distribution faces extend to the side face of the front end of the drill bit body; intersecting lines of the tooth distribution faces and the second side surface are designed according to a corrected mole front paw toe outline fitting curve, and the PDC cutting teeth are distributed along the intersecting lines; the movable cutter wings are arranged between the adjacent fixed cutter wings, and each movable cutter wing comprises a movable cutter wing tooth distribution face on which PDC cutting teeth can bemounted; the heights of the parts, higher than the front end of the drill bit body, of the fixed cutter wings and the movable cutter wings are consistent; and main runner nozzles are arranged on the drill bit body, and side blade nozzles are arranged on the fixed cutter wings. The directional deflecting capacity of a drill bit and the drilling adaptive capacity of the drill bit in a complex hard stratum can be improved.

The present invention relates to a glass composition resistant to chemical media for the production of reinforcing yarns, said glass comprising the following constituents with the limits defined below, expressed in mol%: 67-72% SiO2; 5-9.5%, preferably > 7.5%, ZrO2; 11-17% R2O (R = Na, K and Li); 0-5.5% Li2O; 0-5.5% K2O; < 10% NA2O; and 3-9% CaO, the composition furthermore containing less 1% of impurities (AI2O3, Fe2O3, Cr2O3, TiO2, MgO, SrO, BaO and P2O5) and being free of F. The invention also relates to the glass yarns obtained from this composition and to composites based on an organic or inorganic material containing such yarns.

The invention discloses a manufacturing method of a water transfer keycap for a computer keyboard. The manufacturing method comprises the following steps that 1, a keycap injection mold is taken; 2, ABS raw materials are added into an injection molding machine to be subjected to temperature-preservation and pressure-preservation injection molding by means of the keycap injection mold to obtain a keycap; and 3, the keycap obtained in the step 2 is subjected to water transfer processing to obtain the finished keycap. According to the water transfer keycap which is used for computer keyboard andmanufactured by means of the method, the surface of the keycap is covered with a pattern, keycaps of the same keyboard are processed in the same batch, therefore, it is guaranteed that the pattern effects of the keycaps after water transfer are matched, and the usage requirement of daily life and work of people on the computer keyboard is met; and meanwhile, the surface of the keycap is provided with a protection layer which can prevent the pattern from being worn, and therefore the service life of the keycap is prolonged.

The invention relates to a sample injecting method, comprising the step of injecting a sample and a reagent into a sample injecting pipeline. The reagent comprises a carrying current, the carrying current pushes the sample out from the sample injecting pipeline, and the sample enters into a downstream sample injecting port. The invention also provides a water quality analyzing method and device. The invention has the advantages of accurate sample injecting and simple operation.