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 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 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.

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.

A belt-like fabric for seat belts used to protect passengers on vehicles or airplanes from the impact of a collision. A propylene-based resin, characterized in that the propylene-based resin is cross-linked by a cross-linking agent having 3 to 5 functional groups to form a surface resin layer, and the propylene-based resin and the cross-linking agent are used in seat belts. Cross-linking reaction within the multifilament tissue of the fabric.

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 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 provides a constant force cupping. The constant force cupping comprises a cupping body which has certain elasticity and an elastomer which is used for enabling the cupping body to be rehabilitated is arranged inside the cupping body. When the constant force cupping is used, the cupping body is compressed with a certain degree through an operator, then the cupping body is buckled on the skin needs to be performed cupping and the cupping generates certain negative pressure under the function of the elastomer which is inside the cupping when a hand is loosen, so that the cupping is firmly absorbed on the skin and a constant absorption force is formed between the cupping body and the skin under the function of the elastomer to enable the cupping body not to fall off. The constant force cupping has the advantages of solving the problems that the cupping operation in the prior art is complex and is easy to lose effectiveness, being simple in operation and convenient to use, having no safety incidents and being capable of adjusting the size of suction according to the personal requirement of an operator and good in practicality.

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 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.