68results about How to "Good firmness" patented technology

The invention discloses solar battery packaging glass plated with three layers of anti-reflection films. The solar battery packaging glass is characterized in that three layers of optical films are sequentially plated from inside to outside on the two outer surfaces of ordinary glass 1 in an overlapping way, the first layer is an SiO2 and TiO2 or ZrO2 or Ta2O5 composite film 2 with the refractive index being 1.58 to 1.85, the second layer is a TiO2 or ZrO2 or Ta2O5 film 3 with the refractive index being 1.91 to 2.52, the third layer is the SiO2 film 4 with the refractive index being 1.43 to 1.45, in addition, the average transmission rate of the packaging glass in a visible light region is higher than 98 percent, and the transmission rate reduction amplitude is lower than 1 percent after the friction for 3000 times on a friction resistance test machine. The invention also discloses a preparation method of the solar battery packaging glass. The packaging glass provided by the invention has the average transmission rate higher than 98 percent in the visible light region, so the utilization rate of the solar energy in the visible light region is furthest improved, in addition, the preparation method is simple, the operation is easy, and the industrialization is easy to realize.

The invention belongs to the technical field of barren mountain greening ecological protection, relates to a rock vegetation establishment and construction technology for barren mountain rock greening and preventing water loss and soil erosion, particularly to preparation and construction process of a barren mountain rock greening material. In the early stage, the barren mountain rock greening material is a liquid-solid mixture and comprises adhesives, organic soil, foam materials, plant seeds and the like. The barren mountain rock greening material is placed on barren mountain rocks or the outer wall of a building through spray-seeding, capable of foaming at normal temperature, and finally formed into an adhesive layer, an organic soil layer, a porous foam framework for fixing the organic soil layer and plant seeds and a phytocoenosium layer. The barren mountain rock greening material is pollution-free and capable of achieving natural degradation in a certain period of time. According to the barren mountain greening technology, establishment and construction can be successfully achieved through one-time spray-seeding, the construction technology is simple, later manual maintenance is not required, and the material is environment-friendly, can be firmly adhered to rocks or the surface of the building, resist rain impact, hold moisture, retain fertilizer and be high in air permeability.

The invention relates to a preparation method of molybdenum separation resin. The preparation method comprises the following steps of: (1) preparing a dispersing agent solution; (2) preparing an alpha-benzoinoxime contained organic phase; (3) preparing a styrene-divinylbenzene prepolymer; and (4) synthesizing the resin: adding the styrene-divinylbenzene prepolymer into the dispersing agent solution, stirring the mixture so that the styrene-divinylbenzene prepolymer is dispersed into bead bodiese, and slowly heating to 65-70 DEG C; adding the alpha-benzoinoxime contained organic phase, continuing to heat to 80-85 DEG C, reacting for 10-15h, stopping heating and naturally cooling the alpha-benzoinoxime contained organic phase; and when the temperature is reduced to 40-50 DEG C, filtering a reaction mixture, cleaning a sediment and naturally airing the sediment. The molybdenum separation resin obtained by using the method provided by the invention is stable in structure, firmness of an extraction color layer is good when the molybdenum separation resin is used for molybdenum extraction, and the selectivity of the alpha-benzoinoxime to molybdenum is greatly improved; and experiments and tests prove that the molybdenum separation resin provided by the invention has the saturation adsorption capacity as follows: 36-43mg of molybdenum is contained in each gram of dry resin.

The invention belongs to the technical field of machining, and discloses a cleaning device for an ore machining device, which comprises a left bracket and a right bracket, wherein the upper ends of the left bracket and right bracket are connected through a supporting plate, an illuminating lamp is arranged on the upper surface of the supporting plate, a first air cylinder and a second air cylinderare respectively fixed on the left bracket and right bracket below the supporting plate; the output end of the first air cylinder is hinged with a water spray gun; and heating wires are symmetricallyconnected with the left bracket and right bracket below the first air cylinder and second air cylinder. According to the invention, a magnet ring and an anti-slip ring are arranged on a turntable, sothat the machining device can be firmly adsorbed, the phenomenon that the position of machining device is shifted in the rotating process is avoided, the firmness is better, and the anti-slip ring isprovided with symmetrical water guide grooves, which are convenient for draining; the upper end of the water spray gun is hinged with the first air cylinder and the second air cylinder, and the firstair cylinder and the second air cylinder act simultaneously, so that the position and angle of the water spray gun can be moved, and the flushing range is enlarged.

The invention provides a glass passivation pellet (GPP) chip electrophoresis fluid, which comprises the following components in percentage by volume: 93.75 percent of isopropanol and 6.25 percent of acid surfactant. 375g of glass powders are added to every 10000ml of mixed liquor. By the technical solution, the content and the components of organic carriers are reduced, and isopropanol with less molecular weight of 60.1 is used; at the same time, the acid surfactant (EVO) is taken as a modifier. The formula of novel electrophoresis fluid enables directional performance of the electrophoresis fluid, and density and fastness of the glass powders to be better and the glass shape to be excellent. The organic residues and incompletely burnt carbon simple substance residues are less after the glasses are burnt, and the room temperature IR of a product is much smaller. Because the acid surfactant has strong adhesion to the glass powers, the suspension effect of the novel electrophoresis fluid is superior to that of traditional electrophoresis fluids.

The invention discloses a foldable clothes hanger. The foldable clothes hanger comprises a hanging hook, and a support rod which is movably connected with the hanging hook. The support rod comprises a left support rod, a right support rod which is hinged with one end of the left support rod, a main shaft which is used for installing the left support rod and the right support rod, and a locking mechanism which is used for fixedly connecting the left support rod and the right support rod. The left support rod comprises a left support rod body, and a left connection block which is located on one end of the left support rod body. The right support rod comprises a right support rod body, and a right connection block which is located on one end of the right support rod body. The left support rod and the right support rod are provided with containing grooves which are used for holding the hanging hook. The foldable clothes hanger is simple in structure and good in firmness; the clothes hanger is convenient to fold on travel; after folded, the clothes hanger is small to carry, and space is not occupied; when being not used at home, the clothes hanger can be folded to hang, which is clean and saves place.

The invention relates to devices in the field of firecrackers and particularly discloses a full-automatic reel forming machine for hexagonal firecracker reels. The full-automatic reel forming machine for the hexagonal firecracker reels is characterized by comprising a feeding unit, a reel forming unit and a clamping unit. The full-automatic reel forming machine for the hexagonal firecracker reels has the advantages that the machine completes full-automatic arranging, combining forming and clamping shaping of the hexagonal firecracker reel, is high in forming speed, firm in clamping shaping and good in clamping shaping effect and replaces manual strapping and fixing of a formed hexagonal firecracker reel, thereby greatly saving manpower resources, improving work efficiency and solving the problem of labor shortage; a new hexagonal quick disassembly and assembly clamp is used for replacing ropes for strapping and fixing the hexagonal firecracker reel so as to be repeatedly used, effortless in operation, high in automation degree and capable of greatly saving production costs and achieving the concept of environment-friendly automated production; every part is in modular design and mounting, adjustable in size according to products, easy to operate and quick in maintenance.

The invention discloses a grabbing mechanism for a special-shaped workpiece. The grabbing mechanism comprises a working support (1), a driving air cylinder (2) is arranged on the top face of the working support (1), a piston rod of the driving air cylinder (2) penetrates the working support (1) to be connected with a first lifting plate (12), a second lifting plate (23) is connected to the lower portion of the first lifting plate (12) through a connecting column (22), and a first sucking device (3) and a second sucking device (32) are symmetrically arranged on the bottom face of the first lifting plate (12). The grabbing mechanism has the characteristic that the workpiece is not prone to being damaged, the adsorption stability and firmness of absorption of the special-shaped workpiece arebetter, and the workpiece is not prone to falling.

The invention provides a transfer-printing method and a printed article. The transfer-printing method includes a transfer paper preparing step, a transferring step, and a releasing step. The transferpaper preparing step involves forming an image using transfer-printing ink containing a pigment and a fixing resin by ejecting the ink onto a transfer paper base and then drying at a temperature lowerthan the cross-linking temperature of the fixing resin to obtain transfer paper. The transferring step involves transferring the image formed on the transfer paper to cloth by pressing, while heatingat a temperature higher than the cross-linking temperature of the fixing resin. The releasing step involves releasing the transfer paper from the cloth having the image fixed to it. The layer thickness of the ink layer formed on the transfer paper base is 50 nm to 500 nm, and, in the transferring step, the ink layer is transferred in the form of film to the surface of the cloth.

The invention discloses a double compacting technical structure for a box molding machine, which comprises an upper pre-filling frame, an upper pre-filling frame oil cylinder, a sand box, a lower pre-filling frame, a lower pre-filling frame oil cylinder, a template, a template base, a template exchanging device, a compacting cylinder mechanism and a compacting element, wherein the sand box comprises an upper sand box and a lower sand box; the template comprises an upper template and a lower template; the template base comprises an upper template base and a lower template base; the upper pre-filling frame is supported by an oil cylinder, is mounted on the compacting element and is located above the sand box; and the lower pre-filling frame is supported by the oil cylinder, is mounted on the template base and is located under the sand box. A double compacting structure system with upper compacting technology and lower compacting technology is designed and arranged in a same molding machine, and the suitable molding technology can be selected according to the own characteristics and requirements of different product parts, so that the optimal compacting degree and sand molding quality are ensured.

The invention discloses a real stone paint coating with good firmness. The real stone paint coating comprises a putty layer, a prime coat, an alkali-resistant glass fiber grid reinforcing layer, a real stone paint layer, a waterproof film layer and a finishing coat which are sequentially arranged on the outer side of an outer wall base layer in a coated mode. A reinforcing steel wire penetrating through the putty layer is connected between the outer wall base layer and the alkali-resistant glass fiber grid reinforcing layer, one end of the reinforcing steel wire is inserted and fixed into theouter wall base layer, and the other end of the reinforcing steel wire is hooked on the alkali-resistant glass fiber grid reinforcing layer. According to the real stone paint coating with the good firmness, the structure is simple, design is reasonable, through design of the alkali-resistant glass fiber grid reinforcing layer and the reinforcing steel wire, the real stone paint layer can firmly adhere to the outer wall base layer, thus the adhering firmness between the real stone paint layer and the outer wall base layer is improved, the falling phenomenon of the real stone paint layer in thelater using process is avoided effectively, and the service life of the real stone paint coating is prolonged accordingly.

The invention discloses formed fermented glutinous rice and a production process thereof. The production process comprises the following steps: extruding soaked, cooked and twisted sticky rice in a packaging bottle into a sticky rice cake, providing a funnel-shaped groove in the center of the sticky rice cake by virtue of a former, directly fermenting and ageing the sticky rice cake after the groove is provided in the packaging bottle, and finally, covering and sterilizing to prepare the formed fermented glutinous rice. The formed fermented glutinous rice produced by adopting the production process can not be scattered in shape, has good forming effect and compactness, is attractive in appearance and excellent in color, and has a good taste; fermentation ventilation, oxygen consumption and temperature parameters can be accurately controlled, the fermentation efficiency is increased, and the fermentation time is shorted by 2-3 days in comparison with a conventional fermentation process up to 1 week.

The invention discloses an automatic glue spraying and compounding all-in-one machine and a manufacturing method for automobile trunk carpet production. A template of the automatic glue spraying and compounding all-in-one machine is moved by a horizontal sliding mechanism so that the purpose of horizontal displacement glue spraying of a polypropylene cellular board on the template can be achieved through a glue spraying device. The glue spraying device is moved by a vertical sliding mechanism so that the purpose of vertical displacement glue spraying of the polypropylene cellular board on the template can be achieved through the glue spraying device. Meanwhile, the glue sprayed polypropylene cellular board on the template is glued to a sound insulation felt. The glued sound insulation felt and the polypropylene cellular board on the template are quickly transferred to the position below a pressing plate by the horizontal sliding mechanism. The pressing plate is automatically activated and quickly pushed by a power unit so that further pressing, compounding and molding can be carried out on the glued sound insulation felt and the polypropylene cellular board. According to the automatic glue spraying and compounding all-in-one machine and the manufacturing method for the automobile trunk carpet production, the compounding fastness and the production efficiency of an automobile trunk carpet are improved, and the compounded and molded automobile trunk carpet is good in operation performance.

A ceramic metal anti-corrosion pipe, which is composed of an inner liner and an oil pipe. The inner liner is made of iron powder, simple aluminum powder and silicon powder in a ratio of 1-1.5:0.45-0.60:0.05-0.15, wherein the iron powder and elemental aluminum powder according to 2Al+Fe ₂ o ₃ =Al ₂ o ₃ The reaction products of +2Fe+836Kj/mol are stable a-Al2O3 and Fe, and a large amount of heat is released at the same time, which ensures the continuous progress of the reaction. The invention also provides a molding process of the ceramic metal anticorrosion pipe. The ceramic metal anti-corrosion pipe prepared by the molding process of the present invention can reach a length of 11 meters. The invention is a new type of cermet anticorrosion material, which is a perfect combination of non-metallic materials and metal materials. The ceramic metal anticorrosion pipe provided by the invention has good firmness. The determination of the proportion and composition of iron powder, elemental aluminum powder and silicon powder in the invention The prepared ceramic metal anticorrosion pipe has relatively long service life, relatively high mechanical properties of the product, high corrosion resistance, good wear resistance and high strength.

The invention relates to a slot mortise coupling structur, comprising a tenon and a groove which are oppositely arranged on two components; the invention is characterized in that: the concave part of the groove is provided with a tenon inside the concave part, correspondingly, the convex part of the tenon is provided with a groove arranged inside the convex part; the groove arranged inside the convex part is used for holding the tenon inside the concave part, and the tenon inside the concave part can be an independent part. After the double male and female tenon structure, namely, the tenon inside the concave part and the groove inside the convex part, are adopted and assembled, the tenon inside the concave part has the wedge-spreading effect, and by the wedge-spreading force of the tenon inside the concave part and the shrinkage force at the two sides of the groove, the pretightening force between the tenon and the groove is greatly enhanced, and the firmness is better. To the coupling of light and thin components, the engaged pretightening force between the coupled components can be enhanced by adopting the round log pin structure and utilizing the pull of vacuum, and the effect is more obvious if a plurality of the round log pins are arranged.

The invention discloses a reinforcing treatment method for non-uniform settlement of a foundation of a heavy equipment workshop foundation, and belongs to the technical field of foundation reinforcement. The reinforcing treatment method for non-uniform settlement of the foundation of the heavy equipment workshop foundation is characterized in that a point-of-point processing can be performed at the settling, heavy equipment is tilted by a jack and is separated from one settlement, a backfilling channel is excavated, the foundation settlement is reinforced from below, therefore, the operation of the mobile heavy equipment is effectively avoided, the difficulty of reinforcing the foundation at the settlement is reduced, the reinforcing layer which is filled with the hard soft soil and an arch supporting bridge and an inner surface reinforcing layer and a concrete layer of the settlement position surface can achieve the effect of reinforcing the foundation at the settlement position, thefoundation of the multi-position settlement is reinforced in sequence by repeating the above operations, the strength of the foundation below the settlement can be improved, and the situation that thefoundation is settled again at the settlement position after reinforcement is effectively reduced.

The invention discloses a sandstone wall surface and a construction method thereof. The sandstone wall surface comprises a wall surface body, a sandstone texture middle layer formed by sandstone texture coating and a sandstone texture facing layer formed by a facing coating, wherein the sandstone texture middle layer and the sandstone texture facing layer are sequentially arranged on the outer surface of the wall surface body. And the sandstone texture facing layer is formed by coating the facing coating, and carrying out texture effect treatment and drying. The sandstone wall surface and method have the advantages of on-site construction, no need of stone installation, high construction safety, waterproofness, breathability, good weather resistance, vivid sandstone effect and simple and efficient process.

The invention discloses a semitrailer suspension device in the technical field of communications and transport. The semitrailer suspension device comprises axles (10,13 and 16) and supports (2,4,6 and 7) which can be welded below a frame crossbeam, wherein the axles (10,13 and 16) are fixed on the middle parts of road springs (11,14 and 17) by U-shaped bolts (9,12 and 15); only one ends of the road springs are provided with spring eyes serving as pin roll holes, and the ends are arranged on the supports by pin rolls, wherein the front end of the front road spring (11) is arranged on the front support (2) by the pin roll; and the rear end of the rear road spring (17) is arranged on the rear support (7) by the pin roll. The invention effectively prevents the road springs from moving front and back, thereby avoiding the generation of tyre biting and shaft breaking phenomena of vehicles. Meanwhile, since pull rods are removed by the semitrailer suspension device, the cost is reduced; and the pull rods need not to be regulated in the use process of the vehicles, thereby lightening the work load for drivers.

The invention discloses a tapered-sleeve locking type folding handlebar standpipe which comprises an upper component, a lower component, a standpipe, a bolt with a handle, a guide pin and an inclined hook, wherein the lower part of a cylinder side of the upper component is provided with a linkage lug with a slotted hole, the upper component is provided with two opposite-through holes, the upper opposite-through hole is a guide pin hole for fixing the guide pin, the lower opposite-through hole is a rotating hole of the bolt with a handle, a straight-through hole and a tapered hole are arrangedin the upper component, and a locking surplus hole is arranged below the rotating hole of the upper component; the inclined hook is arranged on the guide pin and the bolt with a handle, and located in the straight-through hole and the tapered hole of the upper component; the upper part of the upper component is in cup joint with the standpipe; the lower component is in a shape with a tapered upper part and a cylindrical lower part; one side of a cylinder is provided with a pair of lug-shaped sheets, the upper and lower parts of the pair of ear-shaped sheets are respectively provided with a pair of opposite-through holes, the upper pair of opposite-through holes are connected with the slotted hole of the linkage lug of the upper component, and the lower pair of opposite-through holes connect the lower component with a front forked pipe of a bicycle in an embracing manner; the tapered head of the lower component is provided with a lock joint hole; and the lock joint hole is matched withthe inclined hook in the upper part.

The invention discloses an extrusion type lamination process for preparing a composite film, which comprises the following steps of: (1) film preparation; (2) dry lamination: coating a film A with an adhesive under the action of a roller, drying, curing, and forming a composite film with a film B under the action of the roller; (3) composite film printing: printing print ink on the composite film through a printing machine; (4) irradiating the print ink with ultraviolet rays emitted by a first group of ultraviolet lamps of the printing machine to have crosslinking reaction between the print ink and a printing layer; (5) irradiating the print ink with ultraviolet rays emitted by a second group of ultraviolet lamps of the printing machine to cure the printing layer on the composite film; (6) drying the printing layer with an infrared ray dryer arranged on the printing machine; and (7) carrying out UV glazing on the dried printing layer with an UV glazing device arranged on the printing machine. By adopting the extrusion type lamination process, the problem that the composite film prepared by adopting the existing composite film preparation process is low in fastness is solved.

The invention discloses a paper shredding cutting tool and a machining method thereof. A cutter shaft of the paper shredding cutting tool is provided with a spiral groove; blades or blade spacer rings are provided with protruding blocks; the protruding blocks are firmly fixed in the spiral groove in a riveting pressure machining mode and accordingly a paper shredding machine can be good in usage and firmness. The invention also discloses a machining device which is suitable for the machining method, particularly a riveting pressure module. Optimally, the riveting pressure module is arranged into two semi-circular rings and the inner lateral sides of the semi-circular rings are provided with protruded riveting pressure points to be beneficial to assembly of the riveting pressure module, riveting pressure implementation and detachment of the riveting pressure module. Accordingly, the process that the blades are fixed on the cutter shaft is greatly improved.

The invention discloses a metamaterial optical window and a preparation method thereof. The metamaterial optical window comprises a plurality of structure units which are periodically arranged. Each structure unit is composed of a transparent dielectric substrate, a mesh transparent resonance structure embedded in the upper deep surface of the transparent dielectric substrate, and a transparent metal mesh layer embedded in the lower deep surface of the transparent dielectric substrate. The mesh transparent resonance structure and the transparent metal mesh layer are both embedded in the deep surface of the optical window body (transparent dielectric substrate), so that the structure is difficult to rub off in practical application, and has excellent harsh environment applicability such as firmness, wear resistance, durability, laser damage resistance and thermal shock resistance; and the embedded grid transparent resonance structure can also realize high permeability in visible and middle and far infrared bands. The metamaterial optical window provided by the invention can realize broadband absorption at a radar microwave band of 1-18 GHz, and the absorption rate can reach 90% or above.

The invention discloses a repeatable filling split ink box adopting a parallel steering principle. The ink box is structurally comprises chip positions, a filling assembly, split plates, ink storage sub-boxes and an assembly guide seat, tops of the front ends of the ink storage sub-boxes are provided with the chip positions, the ink storage sub-boxes and the chip positions are of an integrated structure, and the filling assembly is arranged in the middle of the top ends of the ink storage sub-boxes in a buckled mode. According to the ink box, a parallel transverse plate serves as a split-pointtype guide rail, the ink storage sub-boxes can be guided by a filling head during filling, the filling head is movable and can move according to the required ink storage sub-boxes, in the moving process an internal steering mechanism can automatically rotate and switch ink distribution holes, and each ink distribution hole is uniformly and independently designed, so that and the situation that inks with different colors can be dyed is effectively avoided when the single filling head is used, the consumable cost is low, filling head opening does not need to be repeatedly carried out in the inkadding process, and the use is facilitated.

The invention discloses an adjustable automatic fastening splicing fixture, which comprises a left inserting block, a right inserting block, a fastening rod and a splicing block; a dovetail-shaped projection is arranged on the right side of the left inserting block; A dovetail-shaped groove is arranged on the left side of the right plug; the upper surface of the left plug and the upper surface of the right plug are both provided with chute; the chute is provided with a positioning slider ; The positioning slider is provided with a positioning through hole; the positioning slider is provided with a mobile positioning plate; the mobile positioning plate is provided with a positioning screw hole; the positioning nut passes through the positioning through hole and the positioning screw hole is threaded connection; the moving positioning plate is provided with a fastening rod; the rear side of the positioning slider is provided with a driving device; the four sides of the splicing block are respectively provided with dovetail-shaped bumps and dovetail-shaped grooves. The present invention adopts the splicing and inserting method to realize rapid assembly, and can also assemble the splicing block and the height of the fastening rod according to the size of the parts, so that the fastening is fast and the firmness is good.

The invention relates to an air blower and an assembling method thereof. The air blower and the assembling method thereof are designed for solving the technical problems that due to the fact that existing similar products are poor in structural design, production and assembling are inconvenient, and overall firmness, stability and safety are poor. The grab handle shell, the air inlet cover, the rear cover shell and the air duct shell of the air blower form a shell, a motor fan assembly is arranged in the grab handle shell of the shell, an inner sleeve in the air duct shell and the air duct shell are sleeved, buckled and fixed, and a heating frame is arranged in the inner sleeve; the key point is that the heating frame and the circuit board are connected into a whole; a display cover is arranged above the display screen of the circuit board; a sealing ring is arranged in a sealing groove in the outer diameter of the display cover; the display cover is positioned in the sleeve opening ofthe inner sleeve; keys on one side of the display cover extend out of key holes of the rear cover hood and the rear cover shell, electronic components of the circuit board are arranged on one side ofthe heating frame, the key switch of the circuit board is arranged in an arc shape, holes below the heating frame of the inner sleeve and the air duct shell are communicated with air holes in the grab handle shell, and a switch assembly is arranged on the grab handle shell on one side of the air outlet of the inner sleeve.

The invention relates to a hidden circular arc meshing knob locking-type riser for a folding handle which comprises an upper component, a riser, a lower component, a screw hole cylinder and a knob bolt. The lower part of the upper component is provided with a portal sunk part. The position of the portal sunk part is provided with a bulge which is of a shape of a lateral surface of a cylinder. Thebulge is provided with a slot hole. The slot hole of the upper component is provided with a through hole in the vertical direction. The screw hole cylinder is inserted in the through hole. The knob bolt is screwed in the screw hole cylinder. The upper part of the upper component is connected with the riser. The base of the upper component is provided with a pin seat. The upper part of the lower component is of a dustpan shape. The middle part and the lower part of the lower component are respectively provided with a pair of ear clips. The pair of ear clips at the middle part of the lower component is rotatablely connected with the pin seat of the upper component. The dustpan-shaped edge opening of the lower component is in fit with the portal sunk part of the upper component. The dustpan-shaped inner arc of the lower component is meshed with the bulge which is of the shape of the lateral surface of the cylinder at the portal sunk part of the upper component. The top of the lower component is provided with a U-shaped opening. The U-shaped opening of the lower component corresponds to the slot hole of the upper component. The upper component and the lower component can be locked or loosened by screwing the knob bolt.

The invention discloses a preparation method of a nanocrystallized cotton fiber super-hydrophobic composite material. The preparation method comprises the following steps that 1, alkali washing, primary ball milling, acid washing, secondary ball milling, washing, drying and crushing are carried out on cotton linters to obtain a nanocrystallized cotton fiber; 2, the nanocrystallized cotton fiber isfed into a sodium hydroxide solution, epichlorohydrin is added in the stirring state, and the temperature is adjusted to 65 DEG C-75 DEG C, stirring is carried out for 2-3 h, and filtering, washing and drying are performed to obtain an epoxidized nano-cotton fiber; 3, aminated beta-cyclodextrin and starch-based carbon microspheres are mixed, and wet ball milling, drying and crushing are performedto obtain a starch-based carbon microsphere-cyclodextrin compound; and 4, the starch-based carbon microsphere cyclodextrin compound is dispersed in water, the epoxidized nano-cotton fiber is added under the stirring state and stirred for 10-20 h at the temperature of 70 DEG C-80 DEG C, and filtering, washing and drying to obtain the nanocrystallized cotton fiber super-hydrophobic composite material.

The invention discloses a flange packaging structure provided with electric heating pipes. The flange packaging structure comprises the electric heating pipes, and also comprises a flange plate and seal rings, wherein a raised surface is arranged at the middle portion of the flange plate, the electric heating pipes are arranged on the raised surface, the seal rings are arranged at the periphery of the raised surface and provided with first through holes, and the flange plate is provided with second through holes corresponding to the through holes. According to the structure of the device, the problems that when drinking water is heating, the existing installation of the electric heating pipe and the flange may cause a health problem, and the flange is prone to contact the water to rust and corrode are solved.

The invention provides a splitting method of a basic unit of a honeycomb-shaped triangular conical mesh shell structure; when in splitting, first a unit to be split is determined; an upper chord ball and three lower chord balls which are connected with the upper chord ball form a triangular conical unit; then one adjacent upper chord ball and three web members form a triangular claw unit; finally, a whole honeycomb unit is changed into three triangular conical units and three triangular claw units; and similarly, the unit to be split is extended outwards, so that the three triangular claw units exist around any one triangular conical unit, and the three triangular conical units also exist around any one triangular claw unit. According to the method, a mesh shell is installed through units, so that the construction is more convenient and quicker.

The invention discloses a sand shooting device for manually manufacturing a long and thin sand core, and the device provided by the invention comprises a core box (3), a sand shooting cylinder (1) and an air conveying device, wherein the interior of the core box (3) is provided with a long and thin sand core cavity (35); the sand shooting cylinder (1) is filled with core sand; the air conveying device is communicated with an air source; the bottom of the sand shooting cylinder (1) is connected to the core box (3); the sand shooting cylinder (1) is communicated with the long and thin sand corecavity (35) of the core box (3); and the air conveying device is connected to the upper part of the sand shooting cylinder (1). With such a structure, the sand shooting device has the advantages that after two monomers composed of the core box are fastened, the core sand is shot into the cavity under the action of air pressure in the sand shooting cylinder, thereby avoiding the phenomenon of insufficient sand filling caused by manual sand-filling operation and achieving the manufactured sand core higher in compactness and strength.