50results about How to "No moisture" patented technology

The invention relates to a broadband radial pattern leaky coaxial cable used for subway and a manufacturing method thereof, and the leaky coaxial cable has the double functions of transmission line of information and duplexer. The structure of the leaky coaxial cable consists of an inner conductor, an insulation layer, an outer conductor and a jacket, wherein, the inner conductor is externally covered with the insulation layer which is externally covered with the outer conductor that is externally sheathed with the jacket, and the insulation layer that covers on the surface of the inner conductor adopts nitrogen or carbon dioxide physical foam to form a foamed polyethylene insulation layer; cambered slotted holes are opened on a clutch gold belt of the outer conductor covered outside the insulation layer. The manufacturing method comprises the steps: (1) a spiral wrinkle inner conductor is manufactured by longitudinal covering welding and embossing by using a copper strip; (2) the nitrogen or the carbon dioxide are adopted to be injected into the smelted polyvinyl plastics, and then the physical foamed polyethylene insulation layer is formed on the surface of the inner conductor by extrusion and cladding; (3) the slotted holes broken out by the clutch gold belt of the outer conductor are the cambered slotted holes; (4) the clutch gold belt of the outer conductor is covered on the insulation layer longitudinally, and the surface of the clutch gold belt of the outer conductor is crowded and covered with the jacket.

The invention discloses a vertical semi-solid state cast rolling device and method and relates to aluminum alloy cast rolling equipment and the technical field of manufacturing in order to solve the technical problems that an existing cast rolling method is low in production efficiency, a casting nozzle is prone to blockage, and serious macro segregation and micro segregation defects exist. The vertical semi-solid state cast rolling device comprises a platform, and a launder is arranged at the upper end of the platform; the lower end of the platform is provided with a casting nozzle which is communicated with the launder; the outlet position of the casting nozzle is horizontally and symmetrically provided with a left cast rolling roller and a right cast rolling roller; an outlet of the casting nozzle is higher than a center line of the left cast rolling roller and the right cast rolling roller; a flow dividing block is arranged in the casting nozzle in the width direction; and cooling water is introduced in a roller sleeve of the left cast rolling roller and a roller sleeve of the right cast rolling roller.

The invention relates to a decorative section which is prepared by the following raw materials by weight percent: 39%-71% of heavy calcium carbonate or mine tailing sand, 25%-50% of waste plastics and 4%-6% of chemical additives, wherein the chemical additives comprise the following components: heat stabilizer, stearic acid, chlorinated polyethylene, titanium dioxide, paraffin, antioxidant and anti-ultraviolet agent. The decorative section has the benefits of good heat conduction performance, good heat stability, good environmental protection performance, no thermal expansion and contraction, erosion resistance, antibacterial property, mothproof property, resistance to water soaking, fire resistance, flame retardancy, anti-skid property, no burst, good anti-deformation property, good electrostatic prevention, good elasticity, good product quality, greenness, environmental protection, capability of changing waste into treasure, and low cost.

A garment including a one-way inlet line including a desiccant to remove moisture from the user's breath, the inlet line being connected to a chamber formed by at least a portion of the front and back of the garment. The line extends through a portion of the garment to a designated location where warm air from the user's breath is distributed in the chamber. There is a second valve that the user operates to release the contained air, such as when one goes inside or when one wants to replenish the warm air after a period of time has passed.

The invention discloses a high-molecular copolymer dispersant for paint. The high-molecular copolymer dispersant is prepared by the following components in percentages by mass: 0.2-2% of an initiator, 0-2% of a chain transferring agent, 10-50% of a monomer A, 1-15% of a monomer B, 10-50% of a neutralizer, and 10-50% of water. Organic solvents are not added in a preparation process of the high-molecular copolymer dispersant, so recovery of the organic solvents is not needed, the technology is simple, the cost is low, and environment is not polluted. The paint is produced by utilization of the high-molecular copolymer dispersant, and the paint has the advantages of fast viscosity reduction speed for the powder and good viscosity reduction effects in the production process; water separation and agglomeration phenomenon of the paint does not disappear, an appropriate formula is used for preparing the paint, and after one year of storage, the water separation and agglomeration phenomenon does not disappear.

The invention discloses a process for synthesizing a doripenem lateral chain. According to the process disclosed by the invention, L-hydroxyproline is taken as a starting raw material, and the doripenem lateral chain is obtained through the following steps of: amino protection, carboxyl protection, hydroxyl activation, reduction reaction, acetyl vulcanization reaction and condensation reaction. The process provided by the invention has the advantages of simple and easily-obtained raw materials, no high-temperature and high-pressure reactions and no super-low-temperature reactions; the 'three wastes' generated in the production process mainly comprise waste liquid and the wastewater in the waste liquid is neutralized by appropriate acid and alkali and then is discharged after achieving the discharging standard; and the organic solvents in the waste liquid comprises dichloromethane, dichloromethane and alcohols and can be recycled to be reutilized so that the pollution on the environment is small.

The invention discloses electrostatic wrapping liquid of a vitreous enamel frit and electrostatic vitreous enamel powder and a preparation method thereof, and relates to the technical field of vitreous enamel. The electrostatic wrapping liquid is prepared from, by weight, 0.002-0.01 part of titanate coupling agents, 0.002-0.01 part of carboxyl modified-silicone oil, 0.002-0.01 part of silane coupling agents and 10-20 parts of industrial alcohol. The electrostatic vitreous enamel powder comprises the vitreous enamel frit and the electrostatic wrapping liquid, the electrostatic wrapping liquid accounts for 10%-20% of the total weight of the vitreous enamel frit, the vitreous enamel frit is smashed and then mixed with the electrostatic wrapping liquid by adding water, levigated and dried, and then the electrostatic vitreous enamel powder is prepared, The electrostatic wrapping liquid can wrap any vitreous enamel frit powder. The electrostatic vitreous enamel powder is easy to store, high in adsorption force, low in cost, high in non-flaming performance, free of volatility, resistant to dampness, acid and alkali, high in surface rigidity, good in toughness, high in impact resistance and durable in use. The preparation method of the electrostatic vitreous enamel powder is simple, and the production cost is saved.

The invention discloses a fracture sample preparation method based on the crack resistance of a basalt fiber and asphalt mixture. The fracture sample preparation method based on the crack resistance of the basalt fiber and asphalt mixture comprises the following steps: molding a basalt fiber and asphalt mixture test piece by adopting a Marshall standard compaction technology, performing asphalt mixture split test under different temperature conditions, selecting a Marshall test piece section and a typical small sample after the test is completed, and observing the indirect tensile section andthe microscopic morphology by a digital camera, a scanning electron microscope and other optical instruments in order to observe the fracture morphology characteristics of the basalt and asphalt mixture macroscopically and microscopically. A fracture obtained by the sample preparation method has various morphologies, is clean and pollution-free, and has no interference from external human factors,and the relationship between the crack resistance of the asphalt mixture and the morphology of the fracture can be analyzed in order to further analyze the improvement mechanism fo the crack resistance of the basalt fiber reinforced asphalt mixture.

The embodiment of the invention relates to a lime-based molten iron desulfurizer and a preparation method thereof. The desulfurizer comprises the following components in percentage by weight: 60-90% of lime and 8-40% of desulfurization additive, wherein the desulfurization additive comprises the following components in percentage by weight: 45-75% of Al2O3, 8-30% of Al, 2-8% of simple substance Si, 2-14% of MgO and 3-14% of SiO2. The molten iron desulfurizer provided by the invention adopts metallurgical common lime, and also adopts renewable resource materials which contain metal aluminum, silicon and activated alumina and can completely replace fluorite. The desulfurization effect of the molten iron desulfurizer provided by the invention is the same as that of the fluorite, and the molten iron desulfurizer is lower in cost and more environment-friendly.

The invention relates to a method used for treating highly concentrated ammonia-nitrogen in rare earth waste water, and belongs to the field of highly concentrated ammonia-nitrogen treatment. According to the method, a sticky solution is prepared from a prepared organic composite denitrfying agent modified magnesium aluminum iron hydrotalcite magnetic nano adsorption material and an adhesion agent at a mass ratio of 7:1; the surfaces of adsorption rods are coated with the sticky solution, and the adsorption rods are dried under ventilation states and are delivered into an adsorption tower; a rare earth waste water penetrating fluid is delivered through the adsorption tower so as to adsorb 8000 to 12000mg / L highly concentrated ammonia-nitrogen in the rare earth waste water, wherein aging of adsorption material surface layers can be realized via adsorption saturation; under action of applied magnetic field and current scour, layer-by-layer falling of the adsorption material surface layers is realized, and at last the ammonia-nitrogen content of the rare earth waste water is detected. The method is capable of realizing adsorption material renewal; regeneration is not needed; the ammonia-nitrogen concentration of discharged waste water is controlled to be lower than 0.7mg / L; ammonia-nitrogen removing rate is higher than 99.99%; and no secondary pollution is caused to the environment.

A hermetic damp-proof projection magic lantern comprising a luminous body in a lantern body, a picture sheet which is arranged on the front end of the lantern body, a lens drum which is arranged on the front end of the picture sheet, and a lens in the lens drum. The lantern body is a rectangular casing which is screwed together by a left lateral plate, a right lateral plate, a front end cap, a back end cap, an upper cover plate, and an end plate, and is sealed by a seal ring of the upper cover plate. A fan is arranged between the luminous body in the lantern body and the picture sheet, a lens drum seal ring is arranged between the fixing rings of the lens drum and the lens, and the lantern body is provided with a lantern body holdfast. The invention has the function of hermetic damp-proof function, can work permanently under the condition of 70% environmental moisture, and has non humidity in the lantern body and non rust spot on each component. The picture sheet in the lantern body is not deformed, and proofs moist, which is not affect the irradiated picture effect. Further more, the lens drum on the front end of the lantern body can be focused, and a hand button is arranged on the outer side of the lantern body to regulate irradiation angle according to requests. The invention has novel appearance, light volume, and convenient installation and carrying.

The invention discloses a cable forming device, which comprises at least two wire core rolls, a wire gathering mechanism, at least one filling wire roll, a first drying room and a second drying room arranged in sequence from left to right, the first drying room The first drying chamber and the second drying chamber 5 are all arranged on the base. There is a large inlet on the left side wall of the first drying chamber. The first drying chamber and the second drying chamber are connected by a partition on which a small inlet The wire mouth, the second drying chamber is provided with a wire mold base with a wire parallel mould, and the wire mold base is connected to the base through a bracket. In the scheme provided by the present invention, the core wire and filling wire entering the wire mold base are dried through a two-stage drying chamber to ensure that there is no moisture on the surface of the wire entering the wire mold base, and a humidity sensor is used in the drying chamber to control the drying of the hot air blower. , high efficiency, and constantly monitor the humidity in the drying room, which is energy-saving and worry-free, and is worthy of popularization and application.

The invention discloses a method used for treating high concentration ammonia nitrogen in metallurgical waste water, and belongs to the field of metallurgical waste water treatment. According to the method, an organic composite denitrification agent modified magnesium aluminum iron hydrotalcite magnetic nano adsorptive material is prepared via magnetization, modification, drying, and activation, and then adsorption rods are prepared and are arranged in an adsorption tower to treat high concentration ammonia nitrogen in metallurgical waste water. In removing processes, high concentration ammonia nitrogen in waste water is absorbed, after saturation, aging of the surface layer of the adsorption material is realized, and updating of the adsorption material is realized under the action of an applied magnetic field and flow scour, and regeneration is not needed. After shedding, an obtained residue is waterless, and is small in volume; no ammonia gas is generated or released into the atmosphere; no precipitate is obtained; and no environmental secondary pollution is caused. Separation can be realized under the action of the applied magnetic field; ammonia nitrogen concentration is reduce to 0.45mg / L from 2000-6000mg / L; ammonia nitrogen removing ratio is higher than 99.99%; and the method can be used for treating waste water with high concentration ammonia nitrogen, and possesses a promising prospect.

The invention discloses a laying method of a wall covering plate, and belongs to the field of decoration. The method comprises the following steps: 1, placing an auxiliary line; 2, placing and fastening a first pressing strip; 3, placing first pearl wool; 4, placing a first wall surface covering plate; 5, placing and fastening a second pressing strip; 6, placing second pearl wool; 7, placing a second wall surface covering plate; and 8, placing and fastening a second pressing strip. By adopting the method disclosed by the invention, the following beneficial effects can be achieved: 1, the hidden danger that the ceramic tile falls off to hurt people due to hollowing is completely eradicated; 2, no moisture is emitted indoors, and no moisture is generated; 3, no formaldehyde pollution exists;4, the ceramic tile has no load concentration point, so that the ceramic tile is not easy to crack when being impacted; 5, secondary utilization of the ceramic tile is facilitated, resources are efficiently utilized, and resource waste is eradicated; 6, the heat preservation performance and the sound insulation performance of the wall body are improved; 7, the wall body is thinner and lighter, sothat the load of a floor beam body is reduced; and 8, the loss of the use area in a building is reduced.

The invention discloses a method for treating highly concentrated ammonia nitrogen in petroleum refining wastewater and belongs to the field of environment-friendly ammonia nitrogen wastewater treatment. An organic composite denitrifier modified Mg-Al-Fe hydrotalcite magnetic nanometer adsorption material is obtained by steps of preparing, magnetizing, modifying, drying and activating Mg-Al-Fe hydrotalcite. The material is used for treating high-concentration ammonia nitrogen in the petroleum refining wastewater, the treatment efficiency is high, and ammonia gas and a precipitate are not generated; more importantly, after the modified hydrotalcite absorbs the ammonia nitrogen, the hydrotalcite can strip off automatically layer by layer without being regenerated, and the residue after stripping does not contain water and is small in size; the material is an environment-friendly ammonia nitrogen wastewater treating material; the finally measured ammonia nitrogen content in effluent of the wastewater is less than 0.2mg / L, and the denitrogenation efficiency is over 99.9 percent.

An external valve water cooling system cooling tower of a fan motor comprises a tower body, a fan cover is arranged at the top of the tower body, a fan is arranged in the fan cover, a rotary shaft of the fan is connected with a fixed plate, the fixed plate is connected with the outer wall of the tower body, a second rotary wheel is arranged on the rotary shaft, a motor is arranged on the outer portion of the tower body, a first rotary wheel is arranged on an output shaft of the motor, a through groove is formed in the tower wall of the tower body, and a belt is arranged between the first rotary wheel and the second rotary wheel and penetrates through the through groove. The fan motor is moved to outer portion of the cooling tower, and is completely isolated from moisture and humidity inside the tower, the motor works normally, and the motor is completely prevented from being damped.

The invention provides a hollow glass door and a manufacturing method thereof. The hollow glass door include a frame, an outer glass plate, an inner glass plate, and an air pressure balancing assembly; the outer glass plate and the inner glass plate are arranged on the frame; the air pressure balancing assembly includes a sealing partition bar and waterproof breathable film; the sealing partition bar is clamped between the outer glass plate and the inner glass plate; a plurality of vent holes are formed in the sealing partition bar; the waterproof breathable film is pasted on the sealing partition bar and covers the vent holes; the vent holes are covered by the waterproof breathable film; in actual use, when the pressure of a cavity formed between the glass plates is not equal to the ambient pressure, outside air can flow between the cavity and the outside environment through the vent holes, and then the air pressure in the hollow glass door and the air pressure outside the hollow glass door can be balanced, glass burst accidents due to over-high pressure difference can be avoided, and the safety and reliability of the hollow glass door can be improved.

The invention relates to a single point incremental forming hot air heating working table and a using method thereof, and belongs to the technical field of novel metal material processing. The singlepoint incremental forming hot air heating working table includes a base plate, wherein a supporting tube is arranged on the base plate, a supporting plate extending outwards is arranged on the circumferential part of the upper end of the supporting tube, a fixing plate provided with a mounting through opening is arranged on the supporting plate, a side edge air-out frame plate mounted on the supporting plate and used for supporting blank materials is arranged in the mounting through opening, a material pressing mechanism matched with the side air-out frame plate for pressing the blank materials is arranged on the upper side of the side air-out frame plate, a heating cavity is formed in the supporting tube, the lower part of the heating cavity is connected with a vent pipe, the vent pipe isinternally provided with a heating system and connected with a temperature control system, and a heat insulation structure is further arranged in the supporting tube. According to the single point incremental forming hot air heating system working table, cold air is blown in through an air blower, the air is heated by an electric resistance wire, heat exchange of panel veneers and the hot air isachieved, and the forming limit and forming precision in the process of forming are improved.

The invention belongs to the field of PDA (potato dextrose agar) culture medium preparing methods and discloses a high-transparency PDA culture medium preparing method.The method includes steps: A, potato dicing; B, stewing, to be more specific, stewing over strong fire and then slow fire to make potato dices thoroughly cooked but not mushy; C, filtering; D, material adding, to be more specific, adding 20g of glucose, 0.8-1.4g of monopotassium phosphate and 1.2-1.7g of magnesium sulfate into filtrate obtained at the step C, well mixing, and adding water to a constant volume of 1000mL; E, pH value regulation, to be more specific, using a hydrochloric acid and a sodium hydroxide solution for regulating the pH value to 6.5-7 to obtain a liquid culture medium, distributing 19-23g of high-purity agar powder into a plurality of mixing containers, then distributing the liquid culture medium into the mixing containers, and well mixing; F, transferring to flat-plate petri dishes; G, dehumidifying, namely putting the petri dishes over flame of an alcohol lamp to remove moistures; H, sealing and sterile testing.The high-transparency PDA culture medium preparing method has the advantages that raw materials can be proportionally mixed precisely and quickly, and system errors and operation errors are avoided; moistures in the petri dishes can be well controlled to avoid breeding of contaminating microorganisms.

The invention discloses a method for preparing a PCV antiskid floor. The PCV antiskid floor comprises the following components in parts by weight: 100-150 parts of polyvinyl chloride, 5-10 parts of an additive, 10-15 parts of dye and 5-10 parts of waterproof glue. The PCV antiskid floor has the advantages that the PCV antiskid floor is produced by environmentally-friendly renewable materials, is non-toxic, odorless, free of parasitic bacteria, environmentally-friendly, simple in construction and rapid to install, and can be recycled and reutilized, and can be laid after glue (special environmentally-friendly waterproof glue) is applied to a flat cement or asphalt pavement; the PCV antiskid floor is simple to maintain, free of waxing and low in maintenance cost, and just needs to be washed or cleaned with a mop; and the PCV antiskid floor has strong resistance to bactericides and chemical medicines, which are frequently used at the periphery of a swimming pool have strong and does not deform or change color and is not corroded after being soaked by chlorine water for a long period of time. Due to good drainage property and adoption of a concave and convex texture design on the surface, the skid resistance of the edge of the swimming pool is greatly improved; the occurrence rate of an accidental slip fall accident is effectively lowered; meanwhile, the concave and convex particles can play a role in massaging acupuncture points of feet; by adopting the latest wear-resisting layer design, the feet are tightly attached to the ground constantly; and strong motion power can be arbitrarily transmitted.

The glass pane has two glass panes (2,4) glued to each other on a surface. Each pane has an electro-conductive coating (5) over the entire surface that can be heated by an electrical voltage using electrodes (6). One of the panes has a cutout part (9) in a connecting region, through which external electrical connectors (12,14,15) can be passed. The connectors are brought into contact with the two coatings.

The invention discloses a decorative door-window side line. The decorative door-window side line comprises a pressing cover plate and a bottom plate; the pressing cover plate is provided with an uppergroove which is sunken towards the upper surface of the pressing cover plate and penetrates through the pressing cover plate in the length direction; the upper surface of the pressing cover plate iscorrugated; tenons are arranged on the two outer side faces of the pressing cover plate correspondingly; the bottom plate is provided with a lower groove which is sunken towards the lower surface of the bottom plate and penetrates trough the bottom plate in the length direction; the width of the lower groove corresponds to the width of the pressing cover plate, and the depth of the lower groove corresponds to the height of the pressing cover plate; and mortises matched with the tenons on the pressing cover plate are formed in the two side faces of the lower groove correspondingly so that the pressing cover plate can be mounted in the lower groove in clamped and embedded mode. Compared with the prior art, on one hand, the pressing cover plate and the bottom plate are of a clamping-embeddingstructure, therefore, mounting and demounting are convenient, the time and labor are saved, and construction is easy; and on the other hand, the upper surface of the pressing cover plate is designedto be of a corrugated curved surface structure, so that stress generated after the pressing cover plate is cooled or heated is symmetric and balanced , the shrinking percentage is small, and the defects of warping and the like are effectively prevented.

The invention relates to a small size air feeder, comprising a motor and an air making mechanism, which is characterized in that the outlet of the air making mechanism is connected with an air cylinder; the air making mechanism is arranged in parallel with the motor; both the air making mechanism and the motor are arranged in the casing; the air outlet of the outlet pipe on the air cylinder is arranged on the front of the casing and the handle is arranged on the casing top. The small size air feeder has the advantages that the stable and controllable airflow can be obtained and can be controlled with the pneumatic switch; during working, the air making mechanism can be automatically started or stopped depending on the internal air pressure; the air pressure can be constant without manual operation and the machine can not be started or stopped frequently due to actual need of the air source, so the operation is very easy. The whole structure is compact with beautiful appearance and convenient for carrying, the obtained air source is high quality without impurity and moisture content, The small size air feeder has little noise and thus can meet the standard requirement of below 47decibel stipulated in developed countries.

The invention belongs to the technical field of vehicle autobrakes, discloses an autobrake kinetic energy converter for an unmanned vehicle, and mainly provides a brake kinetic energy converter for active collision prevention. The kinetic energy converter is mainly characterized by comprising a main body, a piston core, an electromagnetic device, a spring and a sealing ring; the main body is provided with a cylindrical stepped cavity with one end open, the cylindrical stepped cavity is composed of an inner cavity and an outer cavity, the piston core is installed in the inner cavity, and the electromagnetic device is installed in the outer cavity; the piston core comprises an inner piston core, an outer piston core and a connecting shaft between the inner piston core and the outer piston core; the inner piston core and the outer piston core each sequentially comprise a guide groove disc, a first stop groove disc, a guide groove and a second stop groove disc, and each guide groove disc is provided with a trough type guide groove; the spring is installed at the inner end of the inner cavity; the outer end face of the outer piston core is provided with a fixed magnetic pole; the main body is provided with a first guide hole, a second guide hole, a third guide hole, a fourth guide hole, a fifth guide hole and a sixth guide hole. The kinetic energy converter has the advantages of lowfailure rate, no spark, moisture resistance and corrosion resistance, and is mainly used for automatic switching of liquids such as oil and gas of electrically controlled brakes and manual brakes.

The invention provides a sanitary towel preparing process, and relates to the technical field of hygienic products. A sanitary towel prepared through the process mainly comprises a water absorbing layer, a medicine layer, a fabric layer, a negative ion functional chip, an isolation layer, an aluminum-plated thin film sealed inner bag and a food-grade aluminum foil film outer bag. The water absorbing layer is prepared by cooling composite fibers, forming a net, conducting adhering, reinforcing, edge cutting and winding and filling in a super-water-absorbability material. The medicine layer is prepared by melting polyethylene and adding polyvinylpyrrolidone, ginger oil, vanillyl butyl ether, coco-betaine glyceride and edible decaldehyde-ethanol to be evenly stirred. The finally-obtained sanitary towel can generate warm feeling, has the effects of being comfortable, free of stuffy feeling and moist feeling, is high in water absorbability, high in breathability and good in sealing performance, gives the safety guarantees and has the good function of restraining the growth of bacteria and fungi.