62results about How to "Difficult to fall off" patented technology

The invention discloses a method for manufacturing a carbon fiber reinforced lead alloy plate grid and a winding lead-acid battery. The method comprises the following steps: (1) degumming carbon fiber sheets at a high temperature: arranging the carbon fiber sheets in an environment of 450-500 DEG C and roasting for 5-10 minutes to remove the epoxy resins, wherein the carbon fiber sheets are made from unidirectional long carbon fibers and epoxy resins; (2) soaking the carbon fibers: soaking the carbon fiber sheets in a liquid sodium-potassium alloy in an anhydrous and inert gas protection atmosphere and then taking out the carbon fiber sheets; (3) carrying out hot extrusion forming: quenching carbon fiber sheets and a lead or lead alloy liquid to below 200 DEG C, and extruding to manufacture a plate, wherein the lead or lead alloy liquid is at the temperature of 450-500 DEG C and the pressure of the lead or lead alloy liquid is 500-550Mpa; (4) rolling: rolling to form the plate; and (5) punching: punching to form holes. The prepared carbon fiber reinforced lead alloy plate grid is high in tensile strength, good in electroconductibility, light in weight and good in corrosion resistance, and can be coated with more active substances in unit area. The winding lead-acid battery prepared by the plate grid has the advantages of higher mass specific energy and volumetric specific energy.

The invention discloses a titanium dioxide / graphene nanocomposite, and a normal-temperature preparation method and application thereof. According to the invention, a titanium source and graphite oxide are used as starting raw materials, an organic solvent is used as a reaction solvent, and the nanocomposite formed by compounding of titanium dioxide nanometer rods and graphene is obtained through normal temperature reduction and hydrolysis; and in the nanocomposite, graphene accounts for 1 to 30 wt%, with the rest being titanium dioxide. The preparation method provided by the invention has the advantages of simple process, easy preparation, mild reaction conditions, etc. In the prepared nanocomposite, titanium oxide is uniformly distributed on the surface of graphene, so the nanocomposite can be perfectly applied to the field of photocatalysis of photoelectric materials.

The invention provides a melamine decorative veneer hot-pressing concavo-convex forming process. By the process, the problems that compaction degree of the product produced by the process is low, the melamine decorative veneer is easy to drop off, the product is fragile and is susceptible to bending deformation, a base plate generates displacement, and the melamine decorative veneer is bubbled easily caused by water vapor are solved. The process comprises the following steps of: softening the base plate; paving the melamine decorative veneer with double surfaces coated with melamine resin glue on the base plate; placing the base plate on a mould-pressing mould to perform mould pressing, wherein the mould-pressing mould comprises an upper template and a lower template, a convex plate is arranged on the upper template, and a groove is formed on the lower template; placing the base plate, where the melamine decorative veneer is paved, on the lower template of the mould-pressing mould; and settling the upper template to press until the convex plate on the upper template and the groove on the lower template are closed and pressed, so that the base plate with the melamine decorative veneer forms a concavo-convex shape under the action of the convex plate and the groove.

The invention discloses antiskid glass which comprises flat glass. An antiskid layer is formed on the surface of the flat glass in a sintering way, and is made of the following raw materials by weight percent: 50 percent to 80 percent of base glaze, 15 percent to 40 percent of sands, 0.15 permillage to 5 percent of active agent and 0.1 permillage to 6 percent of accelerator. In the technical scheme, the raw materials are reformed, the active agent and the accelerator with certain amount are added, and the materials, the active agent and the accelerator are uniformly mixed to be arranged on the flat glass by silk screen so as to form a firm and durable antiskid layer through tempering high-temperature sintering. The antiskid layer is completely combined with the glass, therefore, the antiskid glass is durable and difficult to fall off, has long service lift and no pollutant radiation, and cannot generate any hurt to a human, and is green and healthy. Compared with the prior antiskid glass, the invention has more excellent performance, better wear resistance and longer service life, efficiently puts an end to existence of sand holes and micropores, and improves the quality of a product.

The invention relates to a patch constrained porous carrier catalytic material and a preparation method and applications thereof. The patch constrained porous carrier catalytic material comprises a porous carrier and nanometer composite particles loaded onto the porous carrier; the nanometer composite particles are patches containing precious metal nanoparticles. In preparation, concentrated emulsion polymerization method is adopted to load the nanometer composite particles onto the porous carrier; the patch constrained porous carrier catalytic material is taken as a heterogenous catalyst, andis used for catalyzing chemical reaction in a water phase or oil phase reaction system. Compared with the prior art, the advantages are that: the precious metals nanoparticles with catalysis effect are constrained with patches composed of dendritical amphiphiles, and are loaded onto the surface of the porous carrier material, strong and weak ligand synergistic effect is adopted in regulation andcontrol of the stability and the catalytic activity of the precious metal nanoparticles, so that the catalytic material is more durable, and the stability of the precious metal nanoparticles is high.

The invention relates to a dyeing and finishing process for a cotton-plaited polyester one-way wet-permeable knitted fabric. The dyeing and finishing process for the cotton-plaited polyester one-way wet-permeable knitted fabric comprises the following specific steps: after only dyeing polyester of a cotton-plaited polyester knitted fabric in a dyeing machine, finishing the cotton-plaited polyesterknitted fabric by hair removal enzyme; and after finishing the cotton-plaited polyester knitted fabric by the hair removal enzyme, separately carrying out hydrophilic finishing and cotton surface water repellent finishing. The fabric has a one-way wet-permeable function, when a user takes strenuous exercises, sweat can rapidly permeate to the outside from the inner layer, thus, dryness and comfortableness of skin are maintained, bacteria are prevented from being bred, the fabric wears comfortably, and is suitable to be used as a fabric for autumn and winter sportswear or a fabric for school uniforms, moreover, dyeing defects such as polyester complexion, color spots, barriness and chicken claw grains can be avoided, dyeing difficulty is reduced, the dyeing effect tis improved, the dyeingquality is improved, dyeing is uniform, the function lasts for a long time, and the circumstance that color cannot be weaken sharply and even disappears along with increasing of washing times is avoided.

The invention relates to a nanoporous silver supported porous silver oxide nanorod composite material and a preparation method thereof. The composite material is a bar material, and comprises an amorphous matrix, nanoporous silver covering the amorphous matrix and porous silver oxide nanorods supported on the surface of the nanoporous silver and generated by in-situ oxidation; the amorphous matrixis a CuxZryAgz alloy ingredient, wherein x, y and z are separately an atomic percentage, and value ranges of the x, the y and the z satisfy relationships of 35 <= x <= 45, 35 <= y <= 45, 10 <= z <= 30, and x + y + z=100; the nanoporous silver has a layer thickness of 120-190 [mu]m, a tough band width of 20-120 nm and a pore size of 60-180 nm; and the nanorods gave a diameter of 0.1-1.5 [mu[m anda length of 0.5-12 [mu]m, and a size of nano holes in the nanorods is 10-100 nm. The composite material provided by the invention has a larger specific surface area, and the porous silver oxide nanorods are not easy to fall off, are easy to recycle after being used and can be recycled and reused; and the composite material has unique structural and performance advantages in the field of inorganicbacterium resistance.

Disclosed is a resin rotational body (1) configured by a ring-shaped resin ring (2), and a metal bush (3) fitted to the inner peripheral surface (2a) of the resin ring, wherein the metal bush is provided on its outer peripheral surface with a projection (3a) functioning as a rotation preventing means for connecting the resin ring and the metal bush while preventing mutual rotation. The resin ring is formed by thermal-compressing a blank body which is formed by laminating a plurality of resin sheets produced by a paper making process in the axial direction, and which is formed so that the diameter of its inner peripheral surface becomes substantially identical to the diameter of the outer peripheral surface of the metal bush, and the metal bush is integrally connected to the resin ring by press fitting the bush to the inner peripheral surface of the blank body along the axial direction. The projection of the metal bush is provided at a position forward biased in the press-fitting direction of the metal bush from the center in the axial direction of the metal bush. Provided is a resin rotational body which can be produced by simple steps, and can prevent the occurrence of dropping of the resin ring from the metal bush.

The invention relates to a preparation method of a Ruddlesden-Popper-like perovskite type catalytic material, and the method comprises the following steps: 1, respectively weighing a perovskite metalprecursor comprising a rare earth nitrate and a transition metal nitrate, a metal oxide precursor comprising a nitrate of one element of an alkaline earth element, a boron group element or a transition metal element, and a complexing agent; dissolving the rare earth nitrate and the transition metal nitrate and the nitrate in the metal oxide precursor into deionized water, and then adding the complexing agent; 2, stirring to form a wet gel; 3, standing to obtain a dry gel; 4, adding the dry gel to a reaction kettle, meanwhile adding a surfactant and deionized water to the reaction vessel, adjusting the pH, and reacting at 200 DEG C; 5, drying; and 6, roasting. The catalyst prepared by the method not only has the original advantages of high-efficiency catalysis of perovskite, but also achieves multi-metal synergistic catalysis, thereby more efficiently catalyzing the oxidation of VOCs and avoiding the amplification of defects of homogenous metals.

The invention provides a shifting fork of an engagement switching mechanism, which can reliably prevent a thin sheet disposed at the tail end of the fork part of the shifting fork from getting disengaged with a simple structure. A recess (14i) isolated from axial side faces (14e, 14f) is formed in an radial inner surface (14g) and a radial outer surface (14h) of a tail end (14d) of the fork part (14), and the thin sheet (15) made of resin is injection molded and covers the recess. Therefore, the resin flows into the recess and plays a role as an anchor bolt, thereby preventing the thin sheet from getting disengaged from the tail end of the fork part. Further, since the recess is disposed in the radial inner surface and the radial outer surface of the fork part, the recess is isolated from the axial side faces which mainly bear loads of strong force of inner side faces (16b, 16c) of a cylinder (16). As aresult, the resin in contact with the recess is prevented from getting broken due to stress concentration, and the thin sheet is further reliably prevented from getting disengaged from the tail end of the fork part.

The invention belongs to the technical field of water electrolysis, and particularly relates to a porous array electrode with a two-stage structure as well as a preparation method and application of the porous array electrode. The porous array electrode includes: a porous conductive substrate; a primary array structure grown on the porous conductive substrate; and a sheet-shaped, conical or spine-shaped secondary nano-structure growing on the surface of each unit of the primary array structure in a radial manner. The invention further discloses the preparation method and application of the electrode. The porous electrode structure is obtained for the first time; the surface of the conductive substrate is provided with an arrayed two-stage structure, so that firm combination with the conductive substrate can be achieved, damage and falling are not liable to occur, more active sites for electrochemical reactions are exposed, the electrochemical reaction efficiency is improved. More nanoscale hydrogen bubbles can be obtained when the porous array electrode is used as a cathode material for the water electrolysis hydrogen evolution reaction.

The invention discloses a graphene nanosheet porous photo-thermal conversion material as well as a preparation method and application thereof. The preparation method comprises the following steps: immersing a hydrophilic porous material in water, immersing the hydrophilic porous material in a polymer monomer oil phase dispersed with graphite powder, coating the water-containing surface of the porous material with graphene nanosheets, and fixing the graphene nanosheets on the surface layer of the porous material by polymerization of the polymer monomer on the outer layer, thereby obtaining the graphene nanosheet photo-thermal conversion material. According to the material, sunlight is efficiently converted into heat by utilizing the pore structure of the porous material and the light absorption and heat conversion properties of the graphene nanosheets, so that rapid evaporation of a small amount of local water or an organic solvent is realized, and the overall evaporation efficiency is improved. The raw materials used in the method are low in price and easy to operate, and the method has the advantages of being capable of being recycled on a large scale and good in recycling stability and is expected to be applied to seawater evaporation, industrial and domestic sewage treatment, rapid solvent evaporation, heavy metal recovery and the like.

The invention discloses a water-based surface treatment agent for synthetic leather and a preparation method of the surface treatment agent and relates to the field of water-based polyurethane. The water-based surface treatment agent for the synthetic leather comprises the following ingredients in parts by weight: 100-120 parts of water-based polyurethane, 0.4-0.8 parts of polydimethylsiloxane, 0.4-0.8 parts of defoaming agent, 1-2 parts of thickening agent, 1-3 parts of organosilicon hand feeling agent, 3-7 parts of matting agent and 4-6 parts of ultraviolet protection particle. The ultraviolet protection particle is a lignin / zinc oxide composite particle; a formed film layer has excellent ultraviolet protection capability; and the synthetic leather has low possibility of accelerated aging due to ultraviolet rays. Nano zinc oxide is a poor heat conductor, and can prevent heat transmission; at the same time, lignin quaternary ammonium salt has a synergistic effect in heat resistance; aformation speed of oxygen radicals and holes on the surface of zinc oxide under a high temperature condition can be effectively reduced; and therefore, the ultraviolet protection particle can improveheat stability of the formed film layer.

The invention provides a lens driver mounted on an optical part, comprising a leading screw rotating by utilizing the rotating of a motor, a lens carrier reciprocating along the a rotational axis leading screw by utilizing the rotating of the leading screw, a leading axle extending in parallel to the rotational axis and penetrating the lens carrier and guiding the lens carrier, and a lens mounted on the free end of the lens carrier in the cantilevering state. Thereby, in the lens driver, a part of frame part for forming the lens carrier is removed around the lens, thus the lens face can be big as far as possible.

The invention relates to a metallic inner-thread water pipe joint facilitating equipotential line connection. The metallic inner-thread water pipe joint comprises a water pipe joint, wherein a metallic internal-thread joint is arranged in the water pipe joint through integral injection molding, a metallic bump is integrally formed on the outer side surface of the metallic internal-thread joint, a tightening thread hole is formed in the outer end surface of the metallic bump in an axial direction, and a connection hole communicated with the inner end of the tightening thread hole is formed in the outer side surface of the metallic bump in a radial direction; during using, one end of a wire extends into the connection hole, the tightening wire is screwed into the tightening thread hole by a tightening screw, and the other end of the wire is connected with an equipotential device which is pre-embedded into the wall and is grounded. The connection structure is safe and reliable, the wire is not prone to falling off, and human body electric-shock safety accidents caused by electric leakage of an electric heater in a toilet, thunder and lightning, static electricity and the like are effectively prevented. The metallic inner-thread water pipe joint is firm in connection, safe, attractive, low in processing cost, easy to operate and suitable for being used on a plastic water pipe fitting.

The invention discloses a folding lead-acid storage battery, which comprises a casing, an end cover, a positive plate, a negative plate, a positive lug, a negative lug, a positive terminal, a negative terminal and an electrolyte solution. The casing is provided with at least one end opening, the end opening is packaged by the end cover, at least one of the positive plate and the negative plate is single pole plate, the positive plate and the negative plate are laminated and folded into a single battery cell after respectively coated by a separator, the single battery cell is installed in the casing, the electrolyte solution is poured into the casing, the electrolyte solution is fully attached to the positive plate, the negative plate and the separator, the positive plate and the negative plate are provided with the positive lug and the negative lug respectively, the positive lug and the negative lug are connected with the positive terminal and the negative terminal respectively, and the positive terminal and the negative terminal are led from the end opening of the casing. The folding lead-acid storage battery has the advantages of being novel in structure, large in capacity, high in specific energy, good in vibration resistance performance, good in large-current discharging performance, small in occupied space, low in internal resistance, long in service life, and the like.

The present invention provides a containing component with which the contained object is difficult to disengage. The containing component (11) is formed by continuously installing a plurality of baggy bag parts (23) provided with opening parts (22). The contained object (16) can be contained in the bag parts (23). The clearance between the opening parts (22) of the bag parts (23) is flexible. On at least one part which is nearer to the inner side compared with the edge part except the opening parts (22) on the bag parts (23), a soldering part (30) which is soldered with at least one part of the opposite internal side surface of the bag part (23) is formed. Through forming the bag part (23) of the containing component (11), when a card body (16) which is taken as the contained object is contained, a contacting state of the internal side surface and the card body (16) which is taken as the contained object with a mode that the internal side surface clamps the card body is formed in the bag part (23). Furthermore, the card body (16) is difficult to be disengage from the containing component (11) through friction generated by the contact of the internal side surface of the bag part (23).

The invention discloses a water-based surface treatment agent for synthetic leather and a preparation method thereof, and relates to the field of water-based polyurethane. The water-based surface treatment agent for synthetic leather comprises the following components in parts by weight: 100-120 parts of water-based polyurethane; 0.4-0.8 parts of polyurethane Dimethylsiloxane; 0.4-0.8 parts of defoamer; 1-2 parts of thickener; 1-3 parts of silicone feel agent; 3-7 parts of matting agent; 4-6 parts of UV-resistant particles. The anti-ultraviolet particles are lignin / zinc oxide composite particles, and the formed film layer has excellent anti-ultraviolet ability, so that the synthetic leather is not easy to accelerate aging due to ultraviolet rays. Nano-zinc oxide itself is a poor conductor of heat, which can prevent heat transfer. At the same time, lignin quaternary ammonium salt has a synergistic effect in heat resistance, which can effectively reduce the formation speed of oxygen free radicals and holes on the surface of zinc oxide under high temperature conditions. , so the anti-ultraviolet particles can improve the thermal stability of the formed film layer.

The invention discloses water-based hydrophobic slurry as well as a preparation method and an application thereof. The water-based hydrophobic slurry is prepared from silane modified nano cellulose, hydrophobic nano silicon dioxide, stearic acid substances and water. The preparation method comprises the following steps: mixing nano cellulose, hydrophobic nano silicon dioxide and stearic acid substances to obtain a silicon dioxide premix; and mixing the silicon dioxide premix, the nanocellulose dispersion liquid and a silane substance to obtain the water-based hydrophobic slurry. According to the method, the water-based hydrophobic slurry which is uniform in property, efficient, environment-friendly and good in stability can be provided, the method is simple and convenient, the cost is low, and high hydrophobicity and water-oil separation performance can be provided for a base material.

The invention discloses a pair of pincers, which comprises a pincer mouth and handles, wherein the handles are sleeved by handle sleeves; and anti-dropping structures for preventing the handle sleeves from dropping are arranged between the handles and the handle sleeves. The friction between the handles and the handle sleeves is increased by adopting the anti-dropping structures, so that the probability of dropping of the handle sleeves is greatly reduced, and the pair of pincers is used to the greatest extent.

The invention is aimed to provide an assembly structure of a lighter, in which a lower assembly and an upper assembly are assembled so that a joint part therebetween does not appear on a side wall surface. In an assembly structure of a lighter formed by preparing a lower assembly 10 formed by mounting a jet nozzle 4, a valve mechanism 5 and the like onto a tank upper lid 3A and an upper assembly 20 formed by mounting an ignition mechanism 7, a gas lever 8 and the like onto a bracket 6A, assembling the upper and lower assemblies, and attaching a cap 9 to the resultant assembly, a lower part ofthe bracket 6A in the upper assembly 10 is inserted into the tank upper lid 3A in the lower assembly 10, and they are then assembled and fixed inside the insertion part by hook engagements 11 to 14 or welding. The assembly structure is configured so that the upper part of the bracket 6A is covered by attachment of the cap 9 so that the bracket 6A is not exposed to a side wall surface of the lighter.

The invention discloses a concentrate product warehouse and a construction method thereof, and belongs to the technical field of concentrate product warehouses. According to the technical scheme, The concentrate product warehouse is characterized by comprising a warehouse bottom, namely the ground, a warehouse wall and a water filtering cushion layer; the warehouse wall is vertically mounted on the ground and is used as a fence of the concentrate product warehouse; the water filtering cushion layer is paved on the inner side of the warehouse wall and the ground and is paved on the inner side of the whole concentrate product warehouse, the water filtering cushion layer is used for stacking concentrate products, water in the concentrate products can permeate the water filtering cushion layer, but the concentrate products cannot penetrate through the water filtering cushion layer, wherein the ground is provided with a gradient, a trench is formed in the lowest point of the gradient, the trench extends from the interior of the concentrate product warehouse to the exterior of the concentrate product warehouse, and the bottom surface of the trench is also provided with a gradient. The concentrate product warehouse can be suitable for drainage of various newly-built and built metal and non-metal ore concentrate product warehouses, and is particularly suitable for drainage of the various metal and non-metal ore concentrate product warehouses with fine concentrate product granularity.

The disclosure discloses an atomizing assembly of an electronic cigarette and a preparation method thereof. The preparation method includes steps of: S1, providing a substrate; S2, plating a plurality of heating layers on a plurality of to-be-plated positions by vacuum plating according to the plurality of selected to-be-plated positions on a surface of the substrate; S3, cutting the substrate into a plurality of separated base bodies according to positions of the plurality of heating layers, each base body and the heating layer thereon form one atomizing assembly. The heating layers are attached to the substrate by vacuum plating, thus the plating is uniform and compact, high in size precision, strong in adhesive force and difficult to fall off. The substrate with the heating layers is cut into a plurality of separated atomizing assemblies, thus the production efficiency is higher, the product consistency is better and the product is more stable.

The invention discloses a preparation method of a freeze-proof moisture-proof label adhesive, and belongs to the technical field of polymer adhesives. According to the method provided by the invention, soybean dregs and soybean stalks are subjected to lye high-temperature water boiling to extract plant organic fiber components, a soybean protein in the soybean dregs is hydrolyzed to generate a large number of amino and carboxyl free radicals, so that the bonding properties of the label adhesive are improved, and the label adhesive is prevented from easily falling; and corn starch and organic fibers are mixed, microbial corrosion fermentation treatment is performed by xanthomonas campestris to generate xanthan gum, the xanthan gum component is a polysaccharide component with high viscosity,the main chain of the molecular has a regular curly double-helix structure, so that the molecular structure is stable, good bonding properties can be maintained in the low-temperature environment, the viscosity of the label adhesive can be greatly increased, the bonding degree among the molecules in the label adhesive is improved, and the label adhesive uneasily falls off.

The invention discloses a method for preparing a positive plate of a lead storage battery, which belongs to the technical field of storage batteries. The preparation method includes: (1) die-cutting the foamed lead material after several passes of rolling to obtain a grid grid body, die-casting a lead-tin alloy along a wide side of the grid grid body to form an upper frame and tabs, and obtain Positive grid; (2) Spray low-acid or acid-free lead paste on the positive grid, and then soak in acid; (3) Take the plate out of the acid solution, cover the surface of the plate with coated paper, and place it in a stack for curing chamber solidification to obtain the positive plate of the lead storage battery. The present invention utilizes the foamed lead material with high porosity and large pore diameter to realize the thinning of the pole plate through multi-pass calendering. At the same time, the pore structure is richer and more complex, which can realize the spraying of low-acid and low-viscosity lead paste, and the current distribution of the pole plate is more uniform. Significantly improve the utilization rate of active materials and high-current charge and discharge capabilities; lamination curing can achieve low-temperature and low-humidity curing, reducing energy consumption and difficulty in process control of the curing process.

The invention provides a shifting fork of an engagement switching mechanism, which can reliably prevent a thin sheet disposed at the tail end of the fork part of the shifting fork from getting disengaged with a simple structure. A recess (14i) isolated from axial side faces (14e, 14f) is formed in an radial inner surface (14g) and a radial outer surface (14h) of a tail end (14d) of the fork part (14), and the thin sheet (15) made of resin is injection molded and covers the recess. Therefore, the resin flows into the recess and plays a role as an anchor bolt, thereby preventing the thin sheet from getting disengaged from the tail end of the fork part. Further, since the recess is disposed in the radial inner surface and the radial outer surface of the fork part, the recess is isolated from the axial side faces which mainly bear loads of strong force of inner side faces (16b, 16c) of a cylinder (16). As aresult, the resin in contact with the recess is prevented from getting broken due to stress concentration, and the thin sheet is further reliably prevented from getting disengaged from the tail end of the fork part.

The invention relates to a nanoporous silver supported porous silver oxide nanorod composite material and a preparation method thereof. The composite material is a bar material, and comprises an amorphous matrix, nanoporous silver covering the amorphous matrix and porous silver oxide nanorods supported on the surface of the nanoporous silver and generated by in-situ oxidation; the amorphous matrixis a CuxZryAgz alloy ingredient, wherein x, y and z are separately an atomic percentage, and value ranges of the x, the y and the z satisfy relationships of 35 <= x <= 45, 35 <= y <= 45, 10 <= z <= 30, and x + y + z=100; the nanoporous silver has a layer thickness of 120-190 [mu]m, a tough band width of 20-120 nm and a pore size of 60-180 nm; and the nanorods gave a diameter of 0.1-1.5 [mu[m anda length of 0.5-12 [mu]m, and a size of nano holes in the nanorods is 10-100 nm. The composite material provided by the invention has a larger specific surface area, and the porous silver oxide nanorods are not easy to fall off, are easy to recycle after being used and can be recycled and reused; and the composite material has unique structural and performance advantages in the field of inorganicbacterium resistance.