551results about How to "Won't penetrate" patented technology

The invention discloses an energy saving device suitable for an accurate control air conditioner in a machine room; the energy saving device comprises a refrigerating compression unit, a hot and humidity control device, a loop heat pipe device, separating air flue type heat pipe exchangers, an air valve, a fan, an air flue and an electronic control system. In transitional seasons and winter, the electronic control system automatically controls the opening and closing of the valve so that indoor air passes through a separating air flue inside the room and outdoor cold air passes through a separating air flue outside the room; and air inside the machine room is cooled by using the cold energy of outer air through the arrangement of a middle separating air flue type heat pipe exchanger. The separating air flue type heat pipe exchangers are used for recycling the part of cold energy of exhaust air in a summer working condition through the arrangement of an air supply / exhaust pipeline to precool new air. Loop heat pipe devices arranged before and after an evaporator can recycle the part of energy consumption of electric heating, thereby the energy is saved. According to the energy saving device, the energy saving scheme of the air conditioner in the machine room is further perfected and provides a very good reference value for energy saving of the air conditioner in the machine room.

The invention provides acid-proof ink for protecting one glass solution (OGS) touch screens and a preparation method thereof, relating to ink. The acid-proof ink comprises 1-8 parts of curing agent, 5-50 parts of resin, 10-80 parts of solvents, 1-5 parts of emulsifier and 5-30 parts of filler by mass. The preparation method comprises the following steps: mixing natural resin, synthetic resin and the solvents, adding the emulsifier and heating the materials until the natural resin and the synthetic resin are totally dissolved, thus obtaining a mixture; stirring the prepared mixture under normal temperature and discharging the material when the temperature is cooled to the room temperature, thus obtaining mixed emulsion; adding the curing agent to the prepared mixed emulsion, adding the filler after stirring the materials and grinding the mixture, thus obtaining the liquid acid-proof ink for protecting OGS touch screens. The acid-proof ink has the advantages and technical effects that the ink has smaller particles and denser film, so that the ink can not permeate even if being strengthened; the ink has high particle packing density and is 5-10mu m thinner than the printing thickness of common protective ink; the stability of viscosity of the ink in the printing process can be maintained and the ink does not become dry easily, has good printing effects and does not stick to screen printing plates.

The invention discloses a piece of intelligent fresh air and indoor air synchronous purification equipment and an intelligent fresh air and indoor air synchronous purification method. The equipment comprises a main case 13. The main case 13 is equipped with a fresh air inlet pipe 2, and the fresh inlet air pipe 2 is equipped with a valve device 1 used for opening and closing the air inlet pipe. The main case 13 is further equipped with an exhaust pipe 6, and the exhaust pipe 6 is equipped with a valve device 5 used for opening and closing the exhaust pipe. The main case is internally provided with an intelligent detection component 8 for air detection, a control component 9, an intake fan 17, an exhaust fan 7, an indoor circulation purification fan 14, an indoor air filtration and purification component 15, a fresh air filtration and purification component 3, a heat exchange component 4, an operation display component 12, and an indoor air quality display component 10. The equipment and the method of the invention can achieve a better purification effect, and are suitable for air purification under the condition of serious outdoor air pollution in our country at present stage.

The invention discloses broad-spectrum antimicrobial fragrant polypropylene resin for a washing machine. The resin is prepared from the following raw materials in percentage by weight: 60-84 percent of polypropylene, 0.2-1 percent of small molecule organic antibacterial agent, 0.2-1 percent of inorganic antimicrobial agent, 0.1-1 percent of freshener, 10-30 percent of glass fiber, 5-10 percent of compatilizer, 0.1-2 percent of dispersing agent and 0.1-1 percent of antioxygen. The invention further provides a preparation method of the broad-spectrum antimicrobial fragrant polypropylene resin for the washing machine. The broad-spectrum antimicrobial fragrant polypropylene resin for the washing machine has a broad-spectrum, efficient and lasting antibacterial function, and is higher in safety; washing machine water stirring blades or an washing machine inner barrel made of the resin provide clothing with specific fragrance; as the adding of the glass fibers, the resin has a stronger comprehensive mechanical property, and has low probability of deformation in the using process; the preparation process of the resin is simple, convenient, clean and efficient.

The invention discloses a bushing for a pipe joint. The bushing comprises a bushing body which is provided with an axial channel internally; the bushing body comprises a joint connecting section which is butt joint with the joint body and a pipe connecting section which is butt joint with the pipe; the joint connecting section is provided with a first O-shaped seal ring; the pipe connecting section is provided with a second O-shaped seal ring; the first O-shaped seal ring is used for forming seal connection with the inner wall of the joint body after the butt joint of the joint connecting section and the pipe joint; the second O-shaped ring is used for forming seal connection with the inner wall of the pipe joint in the butt joint of the pipe connecting section and the pipe; the invention also discloses a pipe joint adopting the bushing; and after the liquid is introduced in the pipe, the pipe end surface does not contact with the liquid, thus the pipe joint can not cause harm to the health of people, and has high tightness.

The invention relates to a method for utilizing LED illumination light to realize wireless local area network communication, wherein the method is applied to a wireless local area network communication system. The wireless local area network communication system comprises an access terminal photoelectric transceiver, an LED lamp set and a user terminal photoelectric transceiver. The method comprises the following steps that: the access terminal photoelectric transceiver modulates data downloaded by an access terminal router on LED lights of the LED lamp set at a data rate that is greater than 1M bps; and the user terminal photoelectric transceiver receives the modulated LED lights that are sent by the LED lamp set and then the modulated LED lights are converted into ones with a level form and frequency, wherein the level form and the frequency can be accepted by a user terminal router. According to the invention, the method has the following beneficial effects that: data transmission as well as illumination and energy conservation can be realized simultaneously; because light waves are employed to carry out data transmission, there is no electromagnetic interference of radio frequency; because the light waves can not penetrate a wall, security of data transmission is strong; and no precious radio frequency resources are occupied, so that there is no need to apply for a frequency license.

The invention discloses a preparation method of a high-permeability mica tape. The high-permeability mica tape comprises: a mica paper layer (1) and a reinforcement material layer (4). The high-permeability mica tape is characterized in that: an adhesive layer (2) is sprayed between the mica paper layer (1) and the reinforcement material layer (4); the mica paper layer (1) is mica paper possessing the high permeability; the adhesive layer (2) is a solventless powdered resin which forms point distribution and a large amount of pore channels (3) exist between the pointlike resin. The method comprises the following steps: (1) respectively rewinding the mica paper and the reinforcement material and spraying the solventless adhesive resin powder on the mica paper; (2) after the mica paper sprayed with the adhesive resin powder is preheated, performing hot pressing and compositing, winding and cutting to the mica paper and the reinforcement material so as to obtain the high-permeability mica tape. The prepared mica tape possesses the high permeability. Adhesive contents are small. Flexibility is good. A caking property of the reinforcement material and the mica paper is good. The mica tape can be stored for a long time, can not harden and can not be crisp. A winding technology is good and the mica tape has many other advantages. The mica tape is suitable for insulation processing of various kinds of motors or electric appliance products and especially suitable for a large high-voltage generator set, whose voltage range is 13.8-27Kv. The mica tape is suitable for a main insulation VPI processing technology of a coil (stator bar) with a unilateral insulation thickness of 4-8mm. Soakage time can be shortened.

A control module includes a circuit board having conductor paths arranged on at least one plane and having at least one rigid, inflexible conductor path section. The control module also includes an electronic control circuit which electrically contacts the conductor paths and has electrical components. The control module also includes a pan-shaped cover part protecting the control circuit. The cover part is arranged over a part of the electronic control circuit and contacts a side of the circuit board in a sealing manner with a flat contact region aligned parallel to the side. At least part of the electronic control circuit is protectively arranged in a housing inner chamber between the cover part and the circuit board, and electrical contacts of the circuit board are provided outside of the housing inner chamber, which is covered by the cover part, to contact electrical components of the control module.

The invention discloses a coal mine gob area sealing method, and belongs to the technical field of coal mine gob area gas extraction. When retaining walls of a first sealing chamber or roadway surrounding rocks between the retaining walls are cracked, cracks can be rapidly filled by the aid of fine sand with flowability under the action of ground stress and mining dynamic stress, and tightness is ensured. By the aid of positive and negative differential pressure characteristics of a second sealing chamber, nitrogen pressure in the second sealing chamber is constantly higher than air pressure in a ventilating roadway, a gob area is separated from the ventilating roadway by the second sealing chamber, air in the ventilating roadway cannot enter the gob area, and gas in the gob area cannot permeate into the ventilating roadway. By double sealing of the first sealing chamber and the second sealing chamber, sealing reliability of the gob area is greatly improved, the probabilities of spontaneous combustion of float coal and gas explosion are minimized, and safety of nearby roadways or working faces is guaranteed.

The invention provides a 3D-printing wound dressing material based on silk microsphere bio-ink and a preparation method thereof. The preparation method includes the following steps: transferring silkmicrosphere bio-ink, which includes silk protein microspheres coating aspirin, silk protein water solution, ultraviolet initiator and polyvinyl alcohol ester, into a syringe of a 3D-printing machine;with a cotton gauze as a base printing cloth, printing the surface of the cotton gauze with the silk microsphere bio-ink according to a periodically circulated cross-network structure model; and rapidly curing and shaping the 3D-printing wound dressing material under ultraviolet irradiation. The product is based on 3D-printing technology, wherein the formed cross-network structure contains regularly arranged silk microspheres, and the silk microsphere bio-ink coating layer cures on the surface of the cotton gauze and does not completely penetrate through the cotton gauze. The 3D-printing wounddressing material has good mechanical performance and biocompatibility and excellent slow-release performance, can protect a wound for a long time and can accelerate healing of the wounding.

The invetion relates to a prosthetic heart valve system(10;200;300) and a delivery system(400) therefor, wherein the prosthetic heart valve system(10;200;300) comprises a heart valve element(20) with expandable generally tubular stent support (102)forming a wire frame, wherein the tubular stent support(102) comprises a plurality of adjacent rows of interconnected, substantially diamond-shaped cell structures(171) extending, along and in parallel to the longitudinal direction, between the proximal end and distal end, and wherein the stent support(102), in a medial portion(105), comprises a circumferential row of a plurality of wire anchor structures(171) which wire anchor structures are spaced from one another and attached to the wire frame and which, in respect to the longitudinal axis of the stent support(102), at least partially protrude outward at an angle [alpha]. The prosthetic heart valve system may also comprise a stent(graft)-element(310).

The invention relates to a boiler chimney and the method for forming inner-wall protective element. The inventive boiler comprises an outer frame and a liner. Wherein, said liner has a inner-wall protective, which is formed by a polymer silicate solidify layer, a epoxy paint solidify layer while said two layers can be resistant to acid and high temperature, and a strength layer; the polymer silicate solidify layer is fixed on the inner surface of liner; the epoxy paint solidify layer is fixed on the polymer silicate solidify layer; the strength layer is glass fiber grid cloth, which is extended and embedded into the polymer silicate solidify layer, or individually embedded into the polymer silicate solidify layer and the epoxy paint solidify layer to form the inner-wall protective element. Said invention has lower cost, the high temperature resistance, antisepsis property and the anti-leakage property.

A paper substrate for the crepe adhesive belt is made up of the conifer wood through breaching, pulping by sulfate, beating, adding wet strengthening agent, shaping paper, craping, drying, winding, coating impervious colloid, drying and winding.

The invention relates to a composting treatment system with an automatic deodorization capacity. The system comprises an outer film, an inner film, a gas-rib type framework and two deodorization bases, wherein the outer film and the inner film are propped open by the gas-rib type framework; two ends of the outer film and two ends of the inner film are fixed on the two deodorization bases respectively, so that a sealed space is formed between the outer film and the inner film; a heap is placed in the inner side of the inner film, odorous gas and water vapor produced by the heap enter the sealed space formed by the outer film and the inner film through the inner film, the water vapor is condensed into water in the sealed space, odorous gas molecules can be absorbed and dissolved in condensate water, and waste water is formed, slips into the deodorization bases at the bottom along the inner side of the outer film and the outer side of the inner film and is discharged through the deodorization bases. Compared with the prior art, the system is simple in structure, detachable and capable of isolating and removing putrid odor and water vapor produced through composting treatment of biomass waste.

The invention discloses a pile-forming method for a cast-in-place pile in a coral sand foundation. The method is characterized by comprising: reinforcing a piling position of a cast-in-place pile and the coral around by preliminary grouting, such that a column body isolated from the peripheral foundation and underwater is formed, then piling in the column body. The construction method is characterized in that after the grouting of certain depth is finished, a grouting pipe is lifted, and then the grouting process is repeated, such that reinforced areas of different depths are equal. According to the size of the area to be reinforced, single, three or a plurality of grouting pipes can be uniformly arranged symmetrically. The pile-forming method is easy to realize, simple and convenient to operate, low in cost, and capable of effectively reducing a side friction resistance caused by stressing and breaking of the coral sand and attenuation of a pile end bearing force, and is a good method for forming the cast-in-place pile on coral reef.

The invention provides a pre-graphitized polycrystalline diamond compact. A diamond single crystal polycrystalline layer covers a hard alloy substrate and is synthesized by a diamond single crystal and hard alloy at a high temperature under a high pressure. The process comprises the following steps: putting the diamond single crystal into a vacuum furnace, heating to 1350 to 1450 DEG C in a vacuum of 0.01 to 0.02Pa, and after pre-graphitizing the surface of the diamond single crystal, growing a polycrystalline diamond layer together with contacting single crystal graphite by use of the diamond single crystal and the hard alloy substrate while converting graphite into diamond under a pressure of 5 to 7GPa and at a temperature of 1000 to 1200 DEG C in a metal cup pyrophyllite synthesis cavity; and after growing the polycrystalline diamond layer, raising the temperature in the cavity to 1400 to 1500 DEG C, forming a surface adhesive layer which only has a bonding effect between the polycrystalline layer of the diamond single crystal and the hard alloy substrate, and bonding the polycrystalline diamond layer on the hard alloy substrate, thereby synthesizing the pre-graphitized polycrystalline diamond compact.

The invention relates to a colored soft hydrophilic contact lens and its making method. An organic film and a pigment layer are formed after the heating dye fixation stage through utilizing a film covering, printing and dyeing manner, so the organic film well blocks up the contact of the pigment layer and eyes. A mixture of the organic film, the pigment layer and a lens material monomer is molded, cured and turned to finally obtain the colored soft hydrophilic contact lens, so problems comprising pigment layer fading, weak wearing comfort level and the like are solved.

The invention provides a graphene conductive powder coating before wooden product coating as well as preparation and application thereof. The conductive powder coating is composed of the following components: epoxy resin, graphene, a dispersing agent, a filler, a silane coupling agent, a coupling agent of organic titanate, a flatting agent, a curing agent, an antifoaming agent and the like. The conductive powder coating can be applied to conductive treatment before wooden product coating, and the wooden product is treated and dried and cured to form a flat and dense conductive coating on the surface. The conductive powder coating is capable of closing pores on the surface of the wooden product base material and does not diffuse and permeate on the surface, so that the conductivity performance on the surface of the base material is improved, the electrostatic spraying coating quality of the wooden product is improved, phenomena such as pinholes, bubbles and cracking occurring in the coating flatting and curing process are avoided, and the adhesive force between the wooden product base material and the coating is promoted. The graphene conductive powder coating is excellent in hardness and resistance, is capable of improving the durability of the wooden products and can be widely applied to coating treatment industries of the wooden products.

The invention relates to a phenolic hydroxyl benzoate based macromolecular antibacterial material preparation method. A macromolecular antibacterial material is obtained by grafting of phenolic hydroxyl benzoyl chloride derivative containing monomer and an EVOH (ethylene-vinyl alcohol) copolymer to macromolecules through nucleophilic substitution. The phenolic hydroxyl benzoate based macromolecular antibacterial material has an excellent antibacterial effect on staphylococcus aureus, escherichia coli and mildew and not only has broad-spectrum high-efficiency lasting antibacterial functions but also is high in safety. Compared with nonpolar resin such as polyethylene and polypropylene and other resin such as EVA (ethylene-vinyl acetate) copolymer, the phenolic hydroxyl benzoate based macromolecular antibacterial material has advantages of high compatibility and promising application prospect.

The invention relates to a safe guarding system used in reinforced concrete supporting blasting engineering, which comprises a building safety net, a rubber protective blanket and a wire cable protective screening. The wire cable protective screening is connected with a stretch-draw anchor in a splicing way and is fixed on the upper part of a blasting reinforced concrete prop. An intermediate layer is the rubber protective blanket and an outermost layer is the building safety net. The system uses the wire cable protective screening to replace steel pipe scaffolds. The wire cable protective screening is flexible material and is not damaged after impact bending by slungshot. The covered rubber protective blanket is made of old and useless cover tyre bands of a bicycle, has toughness, flexibility and corrosion resistance which bamboo raft material does not have, and can fully absorbs impact energy of blasting slungshot. The rubber protective blanket also can reduce blasting noise, blocks dust, and furthest reduces various unsafe factors brought about by the reinforced concrete supporting blasting engineering. Steel pipe brackets do not need to be dismantled after blasting by using the blasting engineering; follow-up construction can be put into operation immediately, thus greatly accelerating the whole construction process and having immeasurable economic benefit.

The invention relates to the technical field of solar cells, in particular to a method for preparing a non-masked P-type full back electrode contact crystalline silicon solar cell. The method comprises the steps of: carrying out texturing; depositing tunneling silicon oxide and an intrinsic polycrystalline silicon film, and performing patterned implantation of phosphorus ions; then carrying out etching by using a TMAH solution at a concentration of 1-2% and a solution temperature of 25-80 DEG C, and etching away an intrinsic polycrystalline silicon layer in a non-n+ region and an intrinsic polycrystalline silicon layer on the front surface; then immersing the substrate in a 1-5% HF solution for 1 to 2 minutes to remove the tunneling oxide layer SiO2 in the region; then performing annealing; activating the phosphorus atoms in ion implantation to form even doping in the silicon, so as to form a pn junction region; and finally removing the phosphorosilicate glass on the surface of the pnjunction region, depositing a passivation layer, performing laser film opening, and carrying out screen printing. The method provided by the invention has the advantages of simple production process and high battery efficiency, does not have expensive processes such as boron diffusion, can greatly reduce the cost of the full back electrode contact solar cell, and is suitable for large-scale industrial application.

The invention discloses a power distribution cabinet. The power distribution cabinet includes an apparatus top rack. A lower part of the apparatus top rack is provided with a protective housing. An upper part of the apparatus top rack is provided with a lifting electric oily cylinder. The lifting electric oil cylinder is connected to a power distribution cabinet body which is sleeved inside the protective housing. The power distribution cabinet body is hinged to a cabinet door through a leaf. A lower part of the power distribution cabinet body is provided with a cabinet body pedestal. The cabinet pedestal is adhered to a sealing rubber pad thereon. The apparatus top rack is provided with a waterlogging sensor thereon. The waterlogging sensor is in electrical connection to a controller which is disposed on one side of the lower part of the apparatus top rack. The lower part of the power distribution cabinet body is connected to a telescopic sleeve. The telescopic sleeve cooperates with a fixing sleeve which is arranged on the ground. The power distribution cabinet can be lift above the ground, can prevent theft and damage, can prevent rain. The design of lifting can prevent moisture, and the power distribution cabinet can be automatically lifted in rainy days, and is easy to control, is compatible with practicality and safety.

The invention relates to a biodegradable composite material and to a method for producing same. The biodegradable composite material according to the invention is preferably a bone-building material that can be used in the field of regenerative medicine, particularly as a temporary bone defect filler for bone regeneration.

The invention relates to a transfusion container sealing cover with an easily-torn sealing membrane transfusion pipe and a drug feeding pipe, belonging to a liquid inlet and outlet pipeline and a pipeline sealing device of a transfusion bottle (bag). The easily-torn sealing membrane transfusion pipe and the drug feeding pipe are fixed on the same surface of a cover bottom sheet of a cover body in parallel; the easily-torn membrane transfusion pipe comprises an easily-torn sealing membrane transfusion needle guide pipe and an easily-torn sealing membrane; the drug feeding pipe comprises a drug feeding pipe body, a gasket, a gasket fixing ring and an easy-open cover, the gasket is arranged on a gasket membrane, and the gasket fixing ring is arranged on the gasket; and the cover body comprises the circular cover bottom sheet, a hollow cylinder formed by connecting the side walls of the cover, and a cylinder welding ring formed by outwards extending the edge of the hollow cylinder. The invention has the advantages that double-pipe combiner can realize two functions of drug feeding and transfusion, and has difficult scrap dropping and easy puncture in the process of transfusing puncture; and the transfusion container sealing cover also has lower production cost.

The invention relates to a high-strength pure polytetrafluoroethylene gradient coating filter material, which comprises base cloth, and is characterized in that the base cloth is a polytetrafluoroethylene base cloth; a polytetrafluoroethylene coarse fiber layer and a polytetrafluoroethylene superfine fiber layer are pricked on the polytetrafluoroethylene base cloth; and a polytetrafluoroethylene film is coated on the polytetrafluoroethylene superfine fiber layer. The high-strength pure polytetrafluoroethylene gradient coating filter material has the characteristics of high and low temperature resistance, high acid and alkaline resistance, high humidity resistance, good chemical stability, high filtration efficiency, quick filtration speed, long service life and the like, can be used in various bag-type dusters for flue gas purification, dust removal, dust treatment and material recovery, and has wide application scope.

The invention relates to a cooling method for an oil-immersed transformer and a system thereof, and aims at providing a two-cycle cooling method for the oil-immersed transformer; the transformer oil of the oil-immersed transformer transmits heat to liquid evaporation cooling medium with low temperature by a heat exchanger, and the liquid evaporation cooling medium is vaporized after the temperature thereof rises; gaseous evaporation cooling medium is condensed into liquid by a condensing device, and the liquid reflows to the heat exchanger; another purpose of the invention is a cooling system of the oil-immersed transformer, and the oil-immersed transformer, the heat exchanger and the condensing device are connected together by a pipeline; the transformer oil is stored in the oil-immersed transformer and passes through the oil line part full of the heat exchangers of the pipelines, and the liquid evaporation cooling medium is stored in the evaporation cooling medium part of the heat exchanger; the adopted evaporation cooling medium is fluorocarbon. The cooling method and the system for the oil-immersed transformer solves the problem of large occupying field of the transformer cooling device and outside natural environmental impact and have the advantages of small occupy area, low noise, low energy consumption, safety and reliability.

The invention relates to a portable heating lunch box which comprises a box body, a box cover, a water inlet, a sealing cover, a heating cavity, a reaction cavity and a heat conduction lug. The portable heating lunch box is characterized in that a heating agent which can send out heat while meeting water is contained in the reaction cavity, the heat conduction lug is arranged at the bottom of the heating cavity, the water inlet is arranged on the outer side of the box body, and the sealing cover is arranged on the water inlet. The portable heating lunch box is good in heating effect, heating solution cannot permeate into the meal, and the portable heating lunch box is safe and convenient to use.

The invention relates to an electromagnetic shielding material and especially relates to an electromagnetic shielding film and a preparation method thereof. The electromagnetic shielding film possesses a layer structure and is formed by an adhesive layer and a shielding layer. One side of the shielding layer which is combined with the adhesive layer possesses a smooth surface. And the other side possesses a suede structure. The preparation method of the electromagnetic shielding film comprises the following steps: S1. providing an original fabric; S2. coating UV; S3. electroplating; S4. gluing; S5. sticking a release film. The invention provides the electromagnetic shielding film which can save the coating materials and has no pollution, and also provides the preparation method of the electromagnetic shielding film.

The invention provides a rare earth aluminum alloy conductor and a preparation method thereof. The rare earth aluminum alloy conductor comprises the following components in percentage by weight: 0.5-1% of Fe, 0.07-0.1% of Zn, 0.05-0.1% of Si, 0.02-0.04% of Sb, 0.02-0.05% of Sn, 0.15-0.30% of Cu, 0.01-0.02% of Sr, 0.01-0.03% of Te, 0.03-0.05% of rare earth and the balance of aluminum and inevitable impurities. The rare earth aluminum alloy conductor provided by the invention is excellent in electric property and can be used for producing a cable.