323results about How to "Not susceptible to moisture" patented technology

The invention relates to the technical field of high polymer materials, the technical field of 3D printing, and the field of 3D casting, in particular to a PLA modified material applied to 3D printing of large casting molds, and a method of the PLA modified material. The invention provides the PLA modified material applied to 3D printing of large casting molds, and the PLA modified material comprises the following components: polylactic resin, an inorganic filler, a plasticizer, a flexibilizer, a coupling agent, a chain extender, an antioxidant, an anti-hydrolysis agent, a compatilizer, and a lubricant. To overcome defects in the prior art, the invention creatively develops the PLA modified material specially applied to 3D printing of large casting molds, and the PLA modified material has the advantages of being low in shrinking percentage, good in dimensional stability, high in strength, not liable to be affected with damp, low in price, easy to degrade, environment-friendly, non-toxic, non-irritant, non-pollution and the like.

The invention provides a crack three-dimensional state monitoring method. The method includes the following steps that: (1) a laser range finder at one side of a crack is utilized to measure three vertexes of a triangular light reflection frame arranged at the other side of the crack, so that the distances, vertical angles and horizontal angles from the three vertexes of the triangular light reflection frame to the center of the probe of the laser range finder can be obtained; (2) the step (1) is repeated, data measured in different periods are obtained; (3) the position changes of the three vertexes of the triangular light reflection frame are calculated according to the data measured in the different periods, so that the space coordinate change of the crack can be obtained. The invention also provides a crack three-dimensional state monitoring system. The crack three-dimensional state monitoring system comprises a laser range finder and a triangular light reflection frame; the laser range finder and the triangular light reflection frame are fixed to the ground by monitoring piers; and the three vertexes of the triangular light reflection frame are provided with three total-reflection prisms respectively. The crack three-dimensional state monitoring system and monitoring method of invention have the advantages of structural simplicity, high precision, convenience, easiness in use and high reliability, and are suitable for three-dimensional monitoring of cracks caused by landslides or other geological disasters.

The invention discloses a bioorganic compound fertilizer and a preparation method thereof. The bioorganic compound fertilizer comprises, by weight, 10-15 parts of humic acid, 20-25 parts of crop waste, 5-10 parts of a biological agent, 10-15 parts of algae fat, 10-15 parts of filter mud, 5-15 parts of a synergist, 5-10 parts of a nitrogen fertilizer, 5-10 parts of a potassium fertilizer and 4-10 parts of chitin. The preparation method of the bioorganic compound fertilizer includes the following steps: preparing raw material mixture powder; fermenting to prepare a bioorganic compound fertilizer; and drying, granulating, screening, and carrying out aluminum foil vacuum packaging. Agricultural wastes are fermented by the microbial agent, and the fermented wastes are mixed with nutrients required by plants, so the prepared bioorganic compound fertilizer has the advantages of increase of the fertility of soil, the promotion of planting and the growth of plants on the soil, full recycling of the agricultural waste, reduction of the agricultural pollution, and promotion of the agricultural development.

The invention relates to the technical field of food additives, in particular to a microencapsulated acidity regulator and a preparation method thereof. The microencapsulated acidity regulator is composed of a wall material and an acidity regulator core material in a weight ratio of 1-30:3-1; the wall material wraps a swelling agent core material and is at least one of distilled glycerin monostearate, sorbitan monooleate, hydrogenated vegetable oil, glycerol monolaurate, diacetyl tartaric acid ester of mono(di)glycerides, polyglycerol fatty acid ester, sodium stearoyl lactate and calcium stearoyl lactate; the acidity regulator core material is at least one of gluconic acid-delta-lactone, malic acid, citric acid and fumaric acid. The microencapsulated acidity regulator has advantages that release speed of the acidity regulator can be controlled under certain conditions, and accordingly reactions of the acidity regulator with other substances in advance in certain environment can be reduced; the microencapsulated acidity regulator is less prone to damping and convenient to store and transport.

The invention relates to an unmanned rail electric vehicle and a sky-train system. Regarding the rail electric vehicle, a lane is laid by turnout-free light rails and an anti-impact vertical guide pavement closed and laminate lane, and the vehicle runs on the railway, thus being named as sky-train; the rail electric vehicle adopts unmanned driving, and a destination is found through addressing codes by a vehicular computer system and through road infrared remote control information; a rail electric vehicle monitor center, an automatic indoor parking lot, a high-rise high-capacity indoor parking lot, an indoor platform and a waiting room are arranged; a bus-type rail electric vehicle ticket can be booked by a method which sends a short message via an internet mobile phone, and a taxi-type rail electric vehicle or a household rail electric vehicle can be reserved for pickup on time at a right station; a steering mechanism does not have a steering wheel, the vehicle steering can be completed by a main steering wheel and an auxiliary steering wheel through guiding pavement; and the rail electric vehicle can be a bus type, a taxi type, a household type and an online goods delivery and receiving type.

The invention relates to a solid fertilizer fertilizing apparatus, in particular to a solid fertilizer rapid fertilizing apparatus for vegetables. The technical problem to be solved by the present invention is to provide a fast fertilizing apparatus for solid fertilizers for vegetables, wherein the fertilizing apparatus realizes even fertilization, can perform fertilization according to the growthconditions of vegetables and prevent fertilizers from being easily moisturized. In order to solve the above technical problems, the present invention provides the solid fertilizer rapid fertilizing apparatus for vegetables. The apparatus comprises a bottom plate, wheels, a push handle, a left bracket, a fertilizer box, a punching device, a first support rod, a first motor, a feeding device, a discharge pipe, a valve, a cover plate, etc.; and the push handle is arranged at the left end of the bottom plate, the wheels are arranged at the bottom of the bottom plate, the punching device is arranged at the right end of the bottom plate, and the left bracket is arranged at the left side of the top of the bottom plate. The apparatus achieves the effect of uniform fertilization, can perform fertilization according to the growing condition of the vegetables, and prevents the fertilizers from being easily moisturized, does not waste fertilizers because the rate of punching is the same as the speed of material dropping, thereby maximizing the effect of the fertilizers and enabling the vegetables to maintain sufficient nutrients.

The invention discloses an LED lamp bulb and a manufacturing method thereof. The method comprises the following steps: (a) preparing an integrated lampwick; (b), realizing welding of a lamp shade and a lamp pole at a sealing station of an incandescent lamp production line; (c), performing air suction and burning-sharpening at the stations of air suction and inflation and burning-sharpening of the incandescent lamp production line; and (d), realizing lamp holder mounting at the lamp holder mounting station of the incandescent lamp production line. According to the invention, through reasonably adjusting the mounting sequence and positions of drive power supply components and reasonably increasing and optimizing processing procedures, the steps of (b), (c) and (d) can be sequentially performed on the incandescent lamp production line so as to more fully utilize the incandescent lamp production line, and therefore, the subsequent three processing steps can be performed without adding other equipment, which reduces the equipment cost. Moreover, due to the adoption of the incandescent lamp production line with more mature technology, production mode of large scale and high efficiency can be realized.

The invention relates to a wall decorative plate assembly. The wall decorative plate assembly comprises a mounting assembly and a plurality of wall decorative plates, wherein the mounting assembly comprises a plurality of main fasteners and auxiliary fasteners which are mutually buckled with each other, and the wall decorative plate assembly also comprises a support member and an insertion member which are matched with each other; the auxiliary fasteners and the insertion member are fixed on the back surfaces of the wall decorative plates, the main fasteners and the support member are fixed on a wall, and the wall decorative plates can be fixed onto the wall by virtue of the buckling of the auxiliary fasteners and the main fasteners as well as the cooperation of the support member and the insertion member. Compared with the traditional way, the wall decorative plate assembly is simpler and rapider to install; and moreover, by adopting the mounting structure and the mounting way, mounting materials of the wall decorative plates can be simplified, the cost is reduced, and the selection range of materials of the decorative plates is wider. A space between the decorative plate and the ground facilitates better ventilation effect, so that the decorative plate made of the material such as wood is uneasy to wet in the wet weather. By adopting the buckling mounting structure, each decorative plate is independent to each other, and a small gap is provided between two adjacent decorative plates, so that the decorative plate is more convenient to disassemble.

The invention discloses a sisal hemp glass fiber composite reinforced organosilicone modified phenolic aldehyde molding material which comprises 35-70% of organosilicone modified thermoplastic phenolic resin, 5-45% of glass fiber and sisal hemp mixed fiber, 5-45% of packing material, 0.5-3% of demolding agent, 0.25-1.5% of coloring agent and 2-10% of curing agent. The invention further provides apreparation method of the sisal hemp glass fiber composite reinforced organosilicone modified phenolic aldehyde molding material. The sisal hemp glass fiber composite reinforced organosilicone modified phenolic aldehyde molding material is prepared by mixing the components, smashing or granulating and other working procedures. The phenolic aldehyde molding material prepared by using the method islong in storage time, not apt to become damp, excellent in weather fastness, small in relative density and low in production cost; and the cured material is excellent in toughness and heat resistance. Plastic parts made of the organosilicone modified phenolic aldehyde molding material have the characteristics of being long in storage time, good in toughness, small in relative density, and excellent in heat resistance.

The invention discloses environment-friendly mosquito-repellent incense and a preparation method thereof, and relates to the technical field of mosquito-repellent incense. The environment-friendly mosquito-repellent incense comprises the following raw material components in percentage by weight: 70-80% of artemisia annua residue powder, 2-5% of shaddock peel powder, 5-10% of wood charcoal powder, 8-12% of natural epidesmine powder, 4-5.95% of carboxymethyl starch and 0.05-0.1% of artemisia oil. Compared with current mosquito-repellent incense, the mosquito-repellent incense taking residues obtained by extracting artemisinin of artemisia annua as base materials adopts less and fine raw materials; the added artemisia annua residues, shaddock peel powder and artemisia oil have obvious effects in repelling mosquitoes; moreover, the artemisia annua residue powder is sufficiently utilized as a main raw material, so that the resources are utilized. The combustion type mosquito-repellent incense disclosed by the invention is sufficient in combustion, small in smoke, fragrant in smell and small in irritation to human body, further has functions of expelling flies and insects in addition to mosquitoes, has a special Chinese herbal medicine effect, and is a green and environment-friendly product.

The invention discloses a flocculant feeding device which includes a bin, an impeller rotor and a cooling dehumidification device, wherein a feeding hole is formed in the top of the bin; a discharge outlet is formed in the bottom of the bin; the impeller rotor is arranged in the bin, and when the impeller rotor does not rotate, the discharging outlet is blocked by the impeller rotor, and when the impeller rotor rotates, the impeller rotor drives the material to be discharged; the cooling dehumidification device is installed on the side wall, close to the feeding hole, of the bin and comprises an evaporator, a refrigeration chip and a water absorption layer. The refrigeration chip cools the air in the bin via the evaporator, and the water absorbing layer adsorbs the cooled water and discharges the water out of the bin. The flocculant feeding device has good seal performance, ensures the drying of a flocculant, reduces the agglomeration phenomenon caused by damp, can still run normally after affected with damp to further guarantee the accuracy of the dose of the flocculant, and is simple and reliable in structure.

The invention provides a container prefabricated-cabin transformer substation. The prefabricated-cabin transformer substation comprises a transformer which is in an outdoor use type, and is characterized in that the prefabricated-cabin transformer substation further comprises a high-pressure prefabricated cabin, a low-pressure prefabricated cabin and a secondary protection prefabricated cabin, wherein the high-pressure prefabricated cabin is provided with a cable which is connected with a high-pressure side of the transformer, and the high-pressure prefabricated cabin is made into a first container, the low-pressure prefabricated cabin is provided with a cable which is connected with a low-pressure side of the transformer, and the low-pressure prefabricated cabin is made into a second container; the secondary protection prefabricated cabin is provided with a cable which is connected with the transformer, and the secondary protection prefabricated cabin is made into a third container. Thereby, individualized design can be performed on devices required by the transformer substation according to actual demands, and the container prefabricated-cabin transformer substation is uniform in sizes, convenient to transport and easily extensible.

The invention discloses a cover glaze which is characterized in that: the constituents of the cover glaze are as follows by weight percentage: 90-96 percent of matte fusion cake, 4-6 percent of gas knife soil, 0.08-0.2 percent of sodium carboxymethylcellulose, 0.03-0.36 percent of industrial sodium tripolyphosphate, and 0.20-0.26 percent of ceramic dispergator, and water accounting for 20-26 percent of total proportion of the raw materials. The preparation process flows of the cover glaze are as follows: raw material incoming inspection--batching--ball milling--detection--deironing and sieving--decaying--warehousing and being sieved by 250 meshes of deironing oscillating screen. The ball milling time is 7-10 hours, and ball-milling glazeslip specific gravity is 1.4-1.9g / cm<3>, and the fineness is 0.6-1.0mm; the flowing speed of the ball-milling glazeslip is controlled above 55s. The cover glaze has the advantages of transparent and smooth performance, bright color and luster and wide market prospect.

The invention discloses a method for producing an aluminum foil eight-edge-sealed compound vacuum bag and relates to the technical field of packaging bag preparation. The method for producing the aluminum foil eight-edge-sealed compound vacuum bag disclosed by the invention comprises the following steps: preparing an aluminum foil coil, preparing a PET polyester film reel, preparing a PE protective film, shunt winding, thermally covering a PET film, online printing, rewinding, washing aluminum and hollowing, compounding a PE protective film, drying and curing, performing compound qualificationdetection, slitting rewinding, and producing the bag. According to the method disclosed by the invention, by respectively preparing the aluminum foil coil, the PET polyester film reel and the PET protective film, the operation of thermally covering the PET film is performed on the aluminum foil coil by utilizing a hot pressing roller, and the thermally covered PET film is subjected to printing, aluminum washing and hollowing out. By preparing the water-soluble laminated adhesive, the PE protective film is compounded on the aluminum foil coil, and slitting rewinding and bag production can be performed, so that the protectiveness, protective property and shading property of the eight-edge-sealed packaging bag are improved, and the contents are not easy to be affected with damp.

The invention discloses a fancy glaze and a preparation method thereof. The weight percentages of each component of the fancy glaze are 18 percent to 38 percent of potassium feldspar, 10 percent to 23 percent of calcite, 4 percent to 7 percent of talc, 3 percent to 7 percent of quartz, 4 percent to 10 percent of zirconium silicate, 2 percent to 5 percent of zinc oxide, 5 percent to 10 percent of alumina, 3 percent to 6 percent of barium carbonate, 6 percent to 10 percent of black mud, 0 percent to 0.3 percent of tripolyphosphate, 6 percent to 20 percent of water, 0 percent to 10 percent of squeegee oil and 0 percent to 10 percent of printing paste. The weight percentage of the glaze material fineness is that the 250 meshes sieve residue is 100 percent. The technical process of the method of manufacturing the fancy glaze is as follows: the raw material enters the factory for testing, proportioning, ball milling, detecting, removing iron, sieving and storing in a storehouse for using. The sintering temperature is 1195 DEG C to 1210 DEG C, and the sintering period is 50min to 65min. The application range of the invention is wide; the glaze surface is smooth; the sintering temperature range is wide; the chromatic aberration can not be produced easily; the finished product rate is high; the cost can be reduced by about 40 percent.

The invention discloses an organosilicone modified phenolic aldehyde injection molding material and a preparation method of the organosilicone modified phenolic aldehyde injection molding material. The phenolic aldehyde injection molding material comprises, by weight, of 40-70% of organosilicone modified thermoplastic phenolic resin, 5-30% of wood flour, 10-30% of packing material, 0.5-2% of release agent, 0.25-1.5% of coloring agent, 2.5-15% of curing agent and 0.25-5% of auxiliary curing agent. The organosilicone modified phenolic aldehyde injection molding material is prepared by mixing, smashing or pelleting the components. The phenolic aldehyde injection molding material is long in storage time, not apt to become damp, excellent in weather fastness, small in relative density and low in cost of production, and solidified materials are excellent in toughness and heat resistance. Plastic parts made of the organosilicone modified phenolic aldehyde injection molding material has the advantages of being good in toughness, small in relative density, high in volume mass resistivity and excellent in heat resistance.

The invention discloses a glass fiber reinforced organic silicon modified phenolic molding material and a preparation method thereof. The phenolic molding material comprises the following components in percentage by weight: 35-70 percent of organic silicon modified thermoplastic phenolic resin, 5-45 percent of glass fiber, 5-30 percent of wood powder, 5-45 percent of filling material, 0.5-3 percent of release agent, 0.25-1.5 percent of coloring agent and 2.5-10 percent of curing agent, and the above components are mixed, crushed or graduated and the like to obtain the phenolic molding material. The obtained phenolic molding material has the advantages of long storage time, uneasiness in wetting, excellent weathering resistance, small relative density, low production cost and excellent toughness and heat resistance of solidified materials. A plastic part made by utilizing the phenolic molding material has the characteristics of good mechanical property, good toughness, small relative density, high thermal deformation temperature and the like.

The invention provides a powder spraying desulfuration mechanism for performing RH (Ruhrstahl and Heraeus) on molten steel. The powder spraying desulfuration mechanism is composed of a desulfurizing agent delivery system and a spraying system, wherein the desulfurizing agent delivery system comprises a desulfurizing agent storage bin, a first rotary feeder, a physical strength sending tank, a receiving bin, a blowing assisting device, a spraying tank, a weighing device, an impulse type fluidifying device, a nitrogen module and an argon module, and the spraying system comprises a spray gun lifting mechanism, a spray gun and a vacuum groove. By virtue of calculating the resistance in the delivery process, the desulfuration device is specifically and additionally provided with the blowing assisting device, the stable transportation of a desulfurizing agent is guaranteed, a pipeline is easy to plug; and meanwhile, the position of the powder spraying of the spray gun is adjusted, the position of the spray gun is adjusted according to the pressure in the vacuum groove, the powder spraying penetrating power is enhanced, and the deep desulfuration purpose is achieved.

The invention provides a preparation method of particle shape teabag, which is characterized in that the raw materials of fresh tea leaves are bagged to become finished products after being treated in sequence by spreading, deactivation of enzymes, matching ingredients, crushing, pelleting, sieving, basic baking and full drying, moreover, the sweet atmosphere abstraction can also be proceeded after full drying. The preparation method of particle shape tea bag of the invention has good controllability, high automation degree, and is suitable for convenient and quick tea bag form packaging; the produced particle shape tea bag is not added with any additives and has good tea quality, even extraction, and no deterioration.

The invention discloses an acarbose chewable tablet comprising a bulking agent and a lubricating agent. The inventive acarbose chewable tablet overcomes the drawback that acarbose is not easy to make into chewable tablet and overcomes the shortcomings of acarbose common tablet including high moisture absorption liability and unpleasant feeling during administration by optimization of specific adjuvants, so as to remarkably improve the compliance of patients while ensuring the drug effect. The invention also discloses a preparation method of the acarbose chewable tablet, which has the advantages of good stability and feasibility, simple process, controllable product quality and applicability to industrial production.

The invention discloses finished product coloring equipment for automatic production of a leather product. The finished product coloring equipment comprises an efficient leather blow-dry device. The efficient leather blow-dry device comprises a mounting frame; a coloring device is arranged at the right end of the mounting frame and comprises a mounting shell; a cold wind blow-flattening device, anink jet device and a drying device are sequentially mounted at the top end inside the mounting shell from left to right; a leather conveying belt is mounted inside the mounting shell through two rollers; a leather clamp mounted on the inner wall of the mounting shell is arranged at the bottom end of the ink jet device; and the leather conveying belt is located at the lower right end of a straightplate conveying chain, and a leather-fabric sewing device is arranged at the lower right end of the leather conveying belt. Leather is subjected to blow-flattening by the cold wind blow-flattening device before being machined by the coloring device, and then the leather is colored by the ink jet device, so that the coloring quality is good; and the leather is heated and dried by infrared drying lamps after being colored, thus the air-drying time is saved, and the production efficiency of the leather product is improved.

The invention discloses high-temperature resistant anti-ageing straw treatment liquid, which is prepared from the following raw materials in parts by weight: 3 to 5 parts of polyethylene wax, 3 to 5 parts of nanometer aluminium oxide, 1 to 2 parts of simethicone, 0.4 to 0.6 part of peregal o-10, 0.3 to 0.5 part of rosin glyceride, 0.01 to 0.02 part of butylated hydroxyanisole, 10 to 15 parts of modified polyvinyl chloride emulsion, 0.3 to 0.5 part of triethanolamine borate, 0.3 to 0.5 part of pentaerythritol and 40 to 50 parts of water. The straw treatment liquid provided by the invention can form transparent and uniform coating on the surface of each straw, has excellent water resistance and moisture permeability, and has a good protective effect on the straw materials, so the straw materials are not liable to be affected with damp and mildew. The high-temperature resistant anti-ageing straw treatment liquid also has the characteristics of high temperature resistance and ageing resistance, can protect the straw materials from influencing the properties of the straw materials when the straw materials are used and stored for a long time at high temperature, and contributes to expanding the application range.

The invention relates to the field of new energy vehicles, and aims to provide a heat dissipation mechanism for new energy battery management. The heat dissipation mechanism comprises a box body, uniformly distributed heat dissipation plates are arranged in the box body, vacuum cavities are formed in the heat dissipation plates, and uniformly distributed battery bodies are arranged between every two adjacent heat dissipation plates; uniformly distributed left grooves are formed in the outer wall of one side of the heat dissipation plate, the battery body is matched with the left grooves, uniformly distributed right grooves are formed in the outer wall of one side of the heat dissipation plate, the battery body is matched with the right grooves, and heat dissipation pipes distributed at equal intervals are welded to the outer wall of the top of the heat dissipation plate. Refrigerants are injected into the vacuum cavity of the heat dissipation plate, so that the refrigerants are heated to be evaporated and absorb heat, the evaporated refrigerants are cooled and liquefied in the heat dissipation pipe outside the box body, the heat dissipation plate can continuously cool the battery body in a reciprocating mode, electric energy does not need to be consumed, and the battery body is not prone to being affected with damp; therefore, an energy-saving effect during heat dissipation of battery management is achieved.

The invention relates to an undercarriage device, in particular to a multifunctional unmanned aerial vehicle moving undercarriage device. The multifunctional unmanned aerial vehicle moving undercarriage device comprises a machine body mechanism, dehumidifying fan mechanisms, a lifting mechanism and unmanned aerial vehicle clamping mechanisms. The device can be moved. The device can clamp unmannedaerial vehicles. The device can clamp unmanned aerial vehicles with different transverse sizes, the device can clamp unmanned aerial vehicles with different longitudinal sizes, a device opening and closing door can be easily locked or unlocked, and the device can automatically open the opening and closing door. The device can ensure internal air circulation, so that the unmanned aerial vehicle isnot easily affected with damp. The dehumidifying fan mechanisms are arranged in a fuselage mechanism. The connection mode of the dehumidifying fan mechanisms and the fuselage mechanism is bolt connection. The lifting mechanism is arranged in the fuselage mechanism. The connection mode of the lifting mechanism and the fuselage mechanism is partial welding and partial clearance fit. The unmanned aerial vehicle clamping mechanisms are positioned above the lifting mechanism. The connection mode of the unmanned aerial vehicle clamping mechanisms and the lifting mechanism is welding.

The invention provides a wire mesh three-dimensional craft picture and a craftsmanshipmanufacture process thereof and belongs to the technical field of a decorative picture. The invention solves the problem that an existing three-dimensional craft picture cannot reflect the effect of a traditional Chinese painting. The wire mesh three-dimensional craft picture comprises a bottom plate, wherein a three-dimensional craft modeling constructed by wire mesh is fixedly arranged on the bottom plate, and a color layer on which craft patterns are formed is attached to the surface of the three-dimensional craft modeling. The three-dimensional craft picture is manufactured through the following processes: (1), split painting sketches are designed; (2), painting sketches are printed; (3), three-dimensional modeling is carried out ton the printed drawing sketches; (4), the printed drawing sketches after three-dimensional modeling are combined and spliced; and (5) the finished craft picture is framed by a picture frame. The wire mesh three-dimensional craft picture is manufactured by taking the wire mesh as the main body material and can reflect the spherical permeability of the traditional Chinese painting. According to the wire mesh three-dimensional craft picture, the three-dimensional effect of the picture is strong, the effect is vivid, and the collection value and decoration value are higher; and furthermore, the wire mesh three-dimensional craft picture cannot dye and yellow easily, cannot be eroded by insects and affected with damp easily and can be stored and collected easily.

The invention provides a moisture-proof and wear-resistant corrugated paper and a production method thereof. The moisture-proof and wear-resistant corrugated paper comprises, by mass, 200-250 parts of waste paper, 40-60 parts of a nonwoven fabric, 60-80 parts of superabsorbent resin, 70-90 parts of polyester staple fibers, 30-40 parts of oyster shell powder, 15-20 parts of dextrin, 1-2 parts of borax, 20-30 parts of a paraffin emulsion, 3-6 parts of silica, 2-4 parts of corundum powder, 5-8 parts of talcum powder, 3-5 parts of alumina, 30-45 parts of oxidized starch, 2-4 parts of allyloxy nonylphenol polyoxyethylene ether ammonium sulfate, 8-11 parts of styrene, 7-12 parts of butyl acrylate, 5-10 parts of potassium persulfate and 315-470 parts of water. The invention also provides the method for producing the moisture-proof and wear-resistant corrugated paper from above raw materials. The corrugated paper obtained in the invention has good moisture-proof and wear-resistant properties, has wide application fields and meets the packaging requirements of long-distance transportation and special commodities.

The invention discloses an explosion-proof type combined over-voltage protector large in energy capacitance and relates to an over-voltage protector. The over-voltage protector comprises a base, a fuse wire, a zinc oxide non-linear resistor, a discharging gap and porcelain rings. The base is provided with the porcelain rings. The discharging gap is formed between the porcelain rings and connected with the fuse wire through the zinc oxide non-linear resistor. Valve plates are arranged in the porcelain rings. The zinc oxide non-linear resistor is connected with the discharging gap in series. According to the over-voltage protector, by optimizing the performance index of the over-voltage protector, the over-voltage absorbing capacitance is increased; the over-voltage protector has the additional over-voltage action counting and automatic fault separating functions, the complex periodic detection work is omitted, and engineers do not need to worry about the safe operation of equipment.

The invention discloses a packaging structure of a luminous semiconductor chip and a packaging method thereof. The packaging structure of the luminous semiconductor chip comprises the luminous semiconductor chip and a lampshade, wherein the luminous semiconductor chip is fixed on the bracket of the luminous semiconductor chip; the lampshade and the bracket of the luminous semiconductor chip are fixedly connected and form a sealed cavity; and the luminous semiconductor chip is positioned in the cavity. The lampshade and the bracket of the luminous semiconductor chip of the invention form the sealed cavity to isolate the luminous semiconductor chip from outside and oxygen, so that the luminous semiconductor chip has less possibility of being affected with damp and oxidized, and the packaging structure can be in nude packing without encapsulation by epoxy resin, thus the luminous semiconductor chip can radiate the heat from each direction so as to greatly improve the heat dissipation environment of the luminous semiconductor chip, and the luminous semiconductor chip has normal working temperature without a radiator. Thus, the packaging structure has low manufacture cost, is favourable for popularizing and using products, has simple packaging technology and is favourable for the mass production of the product.

The invention provides a frequency conversion device mounting structure of a submersible pump, belonging to the technical field of submersible pumps. According to the invention, the problems that a frequency converter is independently arranged outside the submersible pump body and thus is easily damped and damaged, and potential safety hazard in electricity utilization exists and the like in the prior art are solved. The frequency conversion device mounting structure comprises a frequency conversion motor and a pump component connected to the frequency conversion motor, wherein the frequency conversion motor comprises a motor shell with a motor cavity; a frequency conversion motor component for driving the pump component to work is mounted in the motor cavity; the motor shell is in a sealed structure; a frequency conversion device connected with the frequency conversion motor is also arranged in the motor cavity; the frequency conversion device comprises a printed circuit board fixed in the motor cavity; and the printed circuit board is provided with a frequency conversion unit for converting the frequency of power-frequency electricity and then transmitting the electricity to the frequency conversion unit of the frequency conversion motor. In the frequency conversion device mounting structure, the frequency conversion device can be mounted in the motor cavity of the submersible pump.