426results about How to "Prevent peeling" patented technology

The invention provides a preparation method of a high-temperature-resistant antioxidant chopped carbon fiber reinforced ceramic-based composite material, and relates to the field of ceramic-based composite material preparation, and the preparation method comprises the following steps: S1, selection and surface treatment of reinforced fibers: selecting chopped carbon fibers as a reinforced material, and carrying out surface modification treatment on the chopped carbon fibers to obtain the reinforced fibers; according to the present invention, the surface modification treatment is performed on the short carbon fiber, and particularly the SiC coating is coated on the fiber surface by using the chemical vapor deposition (CVD) method, such that the oxidation resistance of the carbon fiber under the high temperature condition is effectively improved. The coating enhances the stability of the fiber, reduces the oxidation loss of the fiber at high temperature, enhances the interface bonding force between the fiber and the ceramic matrix, and avoids stripping or interface failure in a high-temperature environment, thereby ensuring the overall stability and service life of the material.

The invention discloses an impact-resistant and distortion-resistant outdoor polyethylene power cable, and relates to the technical field of cables, the impact-resistant and distortion-resistant outdoor polyethylene power cable comprises a cable core, four annularly distributed wire cores are arranged in the cable core, each wire core is composed of an inner-layer conductor, an outer-layer conductor, a heat conduction enhancement layer, an inner enhancement layer and an inner insulation layer, a shielding combination layer is arranged outside a wrapping layer, and a shielding layer is arranged outside the wrapping layer. The shielding combination layer is composed of a high-conductivity metal thin film layer, a nanometer shielding layer and a protective coating, the anti-impact combination layer is arranged outside the shielding combination layer, the anti-impact combination layer is composed of an impact dispersion layer and an energy absorption layer, the anti-distortion combination layer is arranged outside the anti-impact combination layer, and the anti-distortion combination layer is composed of an impact dispersion layer and an energy absorption layer. The anti-distortion combination layer is composed of a core layer and an elastic buffer layer, an outer sheath is arranged outside the anti-distortion combination layer, and the outer sheath is composed of a reinforcing layer, a blocking layer and an outer protective layer, so that the problems that the power cable is poor in impact resistance and distortion resistance and inconvenient to maintain are solved.

The invention discloses an adsorption heat storage material with a multi-stage stepped pore structure and a preparation method of the adsorption heat storage material, according to the material, a metal foam matrix is combined with the multi-stage pore structure, and the storage and release efficiency of heat energy is remarkably improved. Specifically, the metal foam matrix is composed of a plurality of metal foam layers with different porosities, and the porosities are gradually increased in the heat source direction, so that the heat resistance is effectively reduced, and the diffusion of adsorbate is accelerated. The adsorbent coating is coated with an adsorption material mixture containing a template agent, and is subjected to drying and roasting treatment to form a multi-stage pore structure comprising macropores, mesopores and micropores, so that the adsorption diffusion speed and the adsorption capacity are improved. The material not only improves the heat energy storage and energy release capabilities, but also optimizes the diffusion rate of adsorbate. According to the preparation method, through simple and convenient processes such as splicing of the metal foam layer and coating of the adsorbent, the production cost is reduced, the preparation process is efficient and controllable, and wide application prospects are achieved.

The invention provides a silicon-based negative pole piece and a lithium ion battery comprising the same, and relates to the technical field of lithium ion batteries. Comprising a negative electrode current collector, a second active material layer arranged on at least one surface of the negative electrode current collector, and a first active material layer arranged on the surface of the second active material layer. The design of the two active material layers ensures high energy density, and meanwhile, the formula design is optimized by combining the bonding characteristic of the interface layer, so that large internal stress is prevented from being generated in the charging and discharging process; the organic porous cross-linked polymer is applied to the negative pole piece, and the polymer is loose and porous and can be subjected to cross-linked polymerization in a high-temperature process, so that negative pole particles are tighter, expansion of a silicon negative pole in a charging and discharging process can be buffered, and stripping and cracking of the pole piece are prevented.

The invention relates to a modified epoxy resin adhesive and a preparation method thereof, and belongs to the technical field of high polymer materials. The modified epoxy resin adhesive comprises the following components in parts by weight: 90-120 parts of epoxy resin, 8-25 parts of a curing agent, 1-3 parts of a diluent, 0.5-5 parts of a curing accelerator, 4-18 parts of graphite, 1-4 parts of a modified flexibilizer and 10-30 parts of nano diamond / boron nitride (PDA), a polyurethane single soft and hard segment structure and a high-temperature-resistant oxazolidinone ring in the modified toughening agent cooperate with poly (p-phenylene ether sulfone) resin, so that the toughness is effectively enhanced, and crack propagation is inhibited; boron nitride is modified by nano-diamond, wear resistance is optimized, good electric insulativity and chemical corrosion resistance are given to a matrix, polydopamine can promote a compound to be evenly dispersed in the epoxy resin matrix, wear resistance and adhesive force are improved, and the prepared modified epoxy resin adhesive has good toughening and wear-resisting effects and also has the advantages of being good in toughness, good in toughness and good in wear resistance. And the cable also has excellent high temperature resistance, corrosion resistance and electric insulation effects.

A solid aluminum electrolytic capacitor with good stability comprises a core package and a shell, the core package is arranged in the shell in a sealed mode through a rubber plug, the core package is formed by winding an anode foil, a cathode foil and electrolytic paper, and a conductive high-molecular polymer is formed between the anode foil and the cathode foil. The conductive high-molecular polymer comprises a first conductive high-molecular polymer layer and a second conductive high-molecular polymer layer, the first conductive high-molecular polymer layer comprises a first conductive high-molecular polymer and carbon microspheres wrapped with MnO2, and the carbon microspheres wrapped with MnO2 are wrapped with the first conductive high-molecular polymer. According to the invention, the carbon microspheres coated with MnO2 are added into the first conductive high-molecular polymer layer, so that a supporting effect can be achieved in the charge-discharge cycle of the solid aluminum electrolytic capacitor. And meanwhile, cracks on the carbon layers on the surfaces of the carbon microspheres can be beneficial to insertion of electrolyte, so that the damaged oxide film in the production process is repaired to a certain extent.

The invention provides a floating radio frequency connector and an elastic body thereof, and belongs to the technical field of coaxial connectors. The floating radio frequency connector comprises a fixed outer conductor, a floating outer conductor, a floating insulator and a floating inner conductor, the floating inner conductor comprises a contact body and an elastic body, the contact body is fixedly installed in the floating insulator, the elastic body comprises a welding foot part and a deformation part, at least part of the deformation part is of a spiral structure, and the welding foot part is located at one axial end of the deformation part. The contact body is located at the end, axially away from the welding foot part, of the deformation part, and the contact body and the elastic body are of a split structure or an integrated structure. The elastic body of the floating radio frequency connector comprises the elastic body. According to the invention, the deformation part of the floating inner conductor is designed into a spiral structure, so that the elastic deformation capability of the deformation part in each direction is enhanced, and the problems of fatigue fracture and connection failure of a welding pin and a substrate are avoided.

The invention relates to a surface treatment method for stainless steel coated tableware, and belongs to the technical field of metal surface treatment. The corrosion resistance and light weight of the stainless steel tableware are achieved through base material pretreatment, chemical cleaning, activating treatment, heating in a vacuum environment, ion bombardment cleaning, preparation of a bottom Ti layer through a physical vapor deposition method, preparation of a middle TiC layer through a chemical vapor deposition method, preparation of a surface TiO2 layer through high-temperature oxidation and preparation of a hydrophobic and oleophobic layer through a chemical vapor deposition method. A Ti layer is formed on the contact stainless steel bottom layer through multi-layer titanium plating, a TiC layer is formed in the middle, a TiO2 layer is formed on the surface layer, better corrosion resistance and abrasion resistance are achieved through the complementary characteristic of materials of all the layers, and then the hydrophobic and oleophobic properties of the TiO2 surface layer are enhanced through chemical vapor deposition of fluoride.

The invention discloses an enameled round aluminum wire production line suitable for an energy storage inverter, and belongs to the technical field of enameled round aluminum wire production.The enameled round aluminum wire production line suitable for the energy storage inverter comprises a paint box and a baking oven, and the two sides of the top of the paint box are fixedly connected with annular blowing mechanisms; and one side of one annular air blowing mechanism is fixedly connected with a baking box, and the interior of the paint box is fixedly connected with a splashing and coating mechanism. By adopting the splashing coating mechanism and the annular air blowing mechanism, the coating process can be continuously carried out in the linear movement process of the aluminum wire, it is ensured that the aluminum wire on a production line obtains a continuous and stable coating, frequent pause or adjustment is not needed, the overall production efficiency is improved, and through uniform blowing of annular air flow, the production efficiency is improved. The paint can be prevented from being accumulated too thick or non-uniformly at some positions, and the uniformity of the coating is ensured.

The invention discloses a titanium alloy material cutting tool and a machining method, and the machining method comprises the following steps: proportioning a hard phase WC, a binding phase and an additive according to a ratio, carrying out ball milling, spray drying and compression molding to obtain a tool blank, carrying out segmented sintering treatment, machining and molding to obtain the cutting tool, and then carrying out heat treatment to obtain the titanium alloy material cutting tool. Sequentially carrying out electromagnetic coupling strengthening treatment and surface coating plating treatment to form a TiN layer, a CrAlN layer, a CrAlSiN layer and a CrAlBN layer; the titanium-based alloy powder is added into the binding phase, so that the high-temperature strength, the heat resistance and the lightweight characteristic of the cutting tool can be enhanced; the modified CeO2 can improve the microstructure uniformity, the interface bonding force and the oxidation resistance of the cutter, so that the density and the crack resistance are improved; electromagnetic coupling strengthening treatment and multi-layer coating deposition treatment are carried out on the cutting tool, the hardness, wear resistance, oxidation resistance and high temperature resistance of the surface of the tool can be remarkably improved, and meanwhile coating stripping is effectively prevented.

The invention relates to the technical field of wire drawing machines, in particular to a continuous wire drawing machine with a wire tensioning device, the continuous wire drawing machine comprises an unwinding mechanism, a continuous wire drawing mechanism and a winding mechanism which are sequentially arranged from front to back, the continuous wire drawing mechanism comprises a rack, a winding drum and a lubricant box are arranged on the rack, and a wire drawing die assembly is arranged on the lubricant box; a wire tensioning device is additionally arranged between adjacent wire drawing units, and a split type drawing head is used for pre-drawing a wire completely covered by a lubricant, so that heat generated at an extrusion neck is dissipated in time, the mechanical properties of the inner layer and the outer layer of the wire are more uniform, the peeling phenomenon on the surface of the wire is avoided, and the service life of the wire is prolonged. And then the movable drawing head is used for further dynamically extruding and necking the protruding section of the wire rod which is not drawn in the pre-drawing process so as to finish the overall fine-drawing operation of the wire rod, and the movable drawing head and the split type drawing head in each wire drawing unit can be kept synchronous so as to be matched with the speed change of each wire drawing unit in the wire rod drawing process, so that the wire drawing quality is ensured.

The invention discloses a non-woven binding net and a net roll, and belongs to the technical field of net weaving. According to the non-woven binding net, multiple pieces of warp yarn are arranged in parallel in the warp direction, and weft yarn is folded back and forth between the warp yarn and extends in the warp direction; the warp yarns comprise lamellar first count yarns and lamellar second count yarns, the weft yarns are lamellar and stacked between the first count yarns and the second count yarns, and the lower surfaces of the first count yarns and the upper surfaces of the second count yarns are subjected to hot-pressing compounding, so that the weft yarns are fixed; the denier number of the first yarn and the denier number of the second yarn are both 350-560 deniers, the gram weight of the formed binding net is 4.5-7.0 g / m < 2 >, the interval between every two adjacent warp yarns is 10-35 mm, under a certain width, the tensile force capable of being borne in the warp direction is not smaller than 270 kg, and the limit of an existing warp knitting material is broken through. In addition, the bonding net does not have a warp winding structure, the strength can be remarkably improved, stripping of the warp and the weft is avoided through a compounding mode, and more materials are saved.

The present invention discloses an adhesive composition for fuel cells and a preparation method thereof, which relates to the technical field of fuel cells, and comprises a release layer I, a hot melt adhesive layer I, a hot melt adhesive layer II and a release layer II arranged in sequence; the hot melt adhesive layer I is an acid-modified polyolefin resin hot melt adhesive layer, and the hot melt adhesive layer II is a modified polyurethane resin hot melt adhesive layer. The single cell manufacturing process is simplified, the efficiency and yield are significantly improved, and the production efficiency is greatly improved. At the same time, only the adhesive layer is used during the battery packaging process, which effectively reduces the production cost.

The utility model provides a concrete laminated slab, which belongs to the field of fabricated buildings and comprises a bottom plate, longitudinal combined ribs and a cast-in-place layer. Wherein the longitudinal combined rib is arranged on the bottom plate and formed on the plate surface of the bottom plate, the longitudinal combined rib at least comprises two concrete rib sections and a steel rib section, the steel rib section is connected between the two concrete rib sections to form a full-length structure, and the steel rib section is located on the middle point of the plate length of the bottom plate, symmetrically extends towards the two ends and accounts for 2 / 3 of the total plate length; a pipe penetrating space is formed in the steel rib section; and the cast-in-place layer is cast on the bottom plate on a construction site and at least covers the concrete rib section and the steel rib section. According to the scheme, the longitudinal combined ribs of the concrete rib sections and the steel rib sections are arranged, and due to the fact that the compression resistance, especially the tensile strength, of steel is far larger than that of concrete, although the sectional area of the steel rib sections is far smaller than that of the concrete rib sections, the compression resistance and tensile bearing capacity is not reduced; therefore, sufficient pipe penetrating space can be provided, and the shear resistance effect of the structure can be kept.

The invention relates to a titanium carbide thin film material, a preparation method and a zinc ion hybrid capacitor, and the preparation method of the titanium carbide thin film material comprises the following steps: mixing titanium carbide nanosheets with an aqueous solution of ammonium salt, carrying out ultrasonic treatment, carrying out solid-liquid separation, and taking the supernatant liquid to obtain an intercalated titanium carbide nano colloid; adding a water-soluble salt into the intercalated titanium carbide nano colloid, reacting, carrying out solid-liquid separation, washing with water, and drying to obtain titanium carbide aerogel; and carrying out compression molding on the titanium carbide aerogel to obtain the titanium carbide film material. The super-wrinkled titanium carbide film prepared through a nanosheet distortion strategy has obviously improved compression resistance. Under the pressure of 1MPa, the microstructure of the electrode material does not change. In addition, the titanium carbide thin film material has lower tortuosity and can be directly used for constructing an electrode, ion transmission can be accelerated, the dynamic performance of the electrode is remarkably improved, and the requirement for high-quality load application is met.

The invention discloses a hydrogen-corrosion-resistant coating material for a hydrogen-rich electrolyte environment and a preparation method thereof, and relates to the technical field of hydrogen-corrosion-resistant coating materials, the coating material comprises the following components by weight: a metal matrix reinforcing material: 30%-50% of nickel and 5%-10% of cobalt; the ceramic particles comprise 10%-20% of aluminum oxide and 5%-15% of The coating material disclosed by the invention shows excellent corrosion resistance, wear resistance and hydrogen embrittlement resistance in a hydrogen-rich electrolyte environment. The nickel-cobalt alloy layer is kept stable at high temperature and high pressure, hydrogen permeation is blocked, and material degradation is prevented. Aluminum oxide and silicon carbide improve the hardness and wear resistance of the coating, and the coating is kept intact in temperature circulation. The rare earth elements yttrium oxide and cerium oxide enhance the oxidation resistance and hydrogen embrittlement resistance. And the dispersing agent and the cross-linking agent further improve the uniformity, compactness and adhesion of the coating, so that the coating is suitable for industrial parts in high-pressure and high-stress environments.

The invention relates to the technical field of superhard composite materials, in particular to a manufacturing method of a superfine diamond compact, which is characterized by comprising the following steps: S1, raw material selection and pretreatment: diamond particles: selecting high-purity diamond powder with the particle size of 0.1-1 mu m; a hard alloy, such as a cobalt-based alloy, is adopted as a matrix material; nanoscale ceramic particles such as silicon nitride and aluminum oxide are added to serve as the reinforcing materials, gaps between the base body and the diamond particles are filled, and the compactness of the materials is improved; and S2, diamond particle uniform distribution treatment is conducted, specifically, a mechanical stirring and ultrasonic dispersion combined method is adopted, the diamond particles and the matrix powder are fully mixed, the matrix powder and the diamond particles are stirred at a low speed through mechanical stirring, and the particles are preliminarily dispersed. And the uniformity is improved: mechanical stirring, ultrasonic dispersion and electrostatic dispersion are combined, so that the distribution uniformity of diamond particles in a matrix is remarkably improved.

The invention relates to the technical field of TRT blade surface laser cladding anti-corrosion and wear-resistant coating preparation, and discloses a TRT blade surface laser cladding anti-corrosion and wear-resistant coating preparation method which comprises the following steps: preparing a nickel-based alloy raw material, putting the nickel-based alloy raw material into a planetary ball mill to be subjected to ball milling treatment after being combined, and preparing a nickel-based alloy coating; the mixed powder is bonded on a steel base material base plate to form a TRT blade, the TRT blade is put into a drying oven to be dried, high-energy-density laser beams of laser cladding equipment are used for irradiating the powder coated on the surface of the TRT blade to enable the powder to be fused, then an anti-corrosion layer is formed, a metal ceramic gradient material is melted or softened, the metal ceramic gradient material is sprayed to the surface of the anti-corrosion layer, and the metal ceramic gradient material is sprayed to the surface of the anti-corrosion layer. Then the boron nitride coating and the anticorrosive layer are fused together through laser cladding equipment, a transition layer is formed, the boron nitride coating is prepared, the surface of the transition layer on the TRT blade is evenly coated with the boron nitride coating, the surface of the transition layer on the TRT blade is fused together through the laser cladding equipment, and a wear-resistant layer is formed; through the preparation method, the service life of the TRT blade is prolonged.

The invention discloses a display module and a display device.The display module is provided with a display area and a frame area which at least partially surrounds the display area, and the display module comprises a functional film layer which comprises a first film layer; the adhesive layer is at least partially arranged in the frame area and at least partially arranged on the side, in the thickness direction of the display module, of the first film layer, the first film layer comprises a first surface facing the adhesive layer in the thickness direction of the display module, and a buffer layer is arranged between the first surface and the adhesive layer; the elastic modulus of the material of the buffer layer is smaller than that of the material of the first film layer, and the elastic modulus of the material of the buffer layer is smaller than that of the material of the viscous layer. According to the display module, the deformation difference between the first film layer and the viscous layer is eliminated by arranging the buffer layer, generation of extra stress is avoided, stripping of the first film layer and the viscous layer or cracking of the viscous layer is avoided, and the use performance of the display module is improved.

The embodiment of the utility model belongs to the display technology, and provides display equipment and a manufacturing method thereof. The display device includes a substrate, a first terminal, a second terminal, and a conductive component. The substrate has a first surface, a second surface, and a side surface. The side surface is disposed between the first surface and the second surface. Grooves are formed in the side faces. The first terminal is arranged in the first binding area of the first surface. The second terminal is arranged in the second binding area of the second surface. The conductive assembly comprises a connecting piece and a conductive piece which are sequentially arranged in a stacked mode. At least part of the connecting piece is arranged on the side face. The first end of the connecting piece extends towards the first surface and is electrically connected with the first terminal; the second end of the connecting piece extends towards the second surface and is electrically connected with the second terminal. According to the display device, the groove is formed in the side face of the substrate, and at least part of the connecting piece extends into the groove, so that the connecting strength of the connecting piece and the side face of the substrate is improved, the conductive assembly located on the side face of the substrate is prevented from being peeled off, and the use performance of the display device is improved.

The invention discloses a perovskite solar cell with a passivated bottom. The perovskite solar cell sequentially comprises a transparent conductive substrate, a hole transport layer, a nanocrystalline mixed passivation layer, a perovskite light absorption layer, an electron transport layer and a back electrode from a light receiving front surface to a light receiving back surface, the nanocrystalline mixed passivation layer is made of insulating oxide and organic passivation molecules. According to the bottom nanocrystal passivation method, the nanometer oxide particles and the organic passivation molecules are combined and mixed to form the bottom nanocrystal, the passivation adsorption effect of the bottom can be enhanced, the passivation area is increased, more binding sites are provided, the internal stress of the bottom is effectively relieved, the mechanical adhesive force is enhanced, the stripping phenomenon is avoided, and the photoelectric conversion efficiency is improved.

The invention belongs to the technical field of preparation of electrolyzed water catalysts, and particularly relates to a preparation method and application of an anion intercalation r-Ru-NiFe-LDH catalyst. The foam iron is subjected to washing pretreatment and freeze drying; the preparation method comprises the following steps: putting foam iron into an alkaline aqueous solution of nickel salt, and carrying out hydrothermal reaction to obtain an anion intercalated NiFe-LDH precursor growing on the foam iron; and putting the anion intercalated NiFe-LDH precursor into a ruthenium chloride solution, carrying out hydrothermal reaction again, taking out, drying, and carrying out reduction treatment to obtain the anion intercalated ruthenium-loaded NiFe-LDH catalyst growing on the foam iron. The invention provides a new idea for research and development of a seawater electrolysis bifunctional catalyst with high activity and stability under high current density, and has a wide industrial application prospect.

The invention belongs to the technical field of catalyst preparation, and provides a water-sulfur-resistant monolithic catalyst and a preparation method and application thereof.The preparation method comprises the following steps that a carrier is placed in composite slurry, calcination is conducted after dipping is completed, the carrier containing a protective coating is obtained, and the composite slurry comprises titanium dioxide and a lanthanum nitrate-silica sol compound; s2, putting the carrier containing the protective coating obtained in the step S1 into a non-noble metal additive compound solution, and calcining after dipping to obtain a carrier containing a non-noble metal additive coating; and spraying Pd-coated SiO2 precursor aerosol on the carrier surface of the non-noble metal auxiliary agent coating obtained in the step S2, and calcining to obtain the water-sulfur-resistant monolithic catalyst. According to the preparation method, the catalytic performance and the stability of the catalyst are improved, and the preparation cost is reduced.

The invention discloses a pure metal / high-entropy amorphous alloy nano multilayer film with a three-dimensional interface and a preparation method, and belongs to the field of metal surface modification.The nano multilayer film comprises crystal layers and amorphous layers which are alternately stacked, the crystal layers are of a single-phase face-centered cubic structure, crystal grains are columnar crystals growing in the deposition direction and penetrating through component layers, and the amorphous layers are of a single-phase face-centered cubic structure. The amorphous layer keeps a long-range disordered structure, and an interface between the crystal layer and the amorphous layer is of a three-dimensional structure; different from a two-dimensional sharp interface, a three-dimensional interface has certain strength, movement of dislocation in the area is subjected to stress, and then the current situation that dislocation completes slippage, namely annihilation, is changed. According to the preparation method, dislocation is orderly arranged near a three-dimensional interface, so that accumulation occurs, heterogeneous deformation stress is remarkably enhanced through long-range ordered dislocation arrangement, and the strength of the material is effectively improved.

The utility model relates to the technical field of house repairing, in particular to a waterproof layer structure for repairing an old house, which comprises a base surface layer and a concrete mortar layer, and a waterproof layer is arranged between the base surface layer and the concrete mortar layer. The waterproof layer comprises a cement-based permeable crystallization self-healing coating layer, an asphalt waterproof coating layer is arranged on the cement-based permeable crystallization self-healing coating layer, and a gridding cloth layer is arranged on the asphalt waterproof coating layer. The utility model has the characteristics that the structure is simpler and more reasonable, blistering and peeling can be better avoided, the waterproof effect can be improved, and moisture overflow can be avoided.

The invention belongs to the technical field of alloy spraying processes, and discloses a process for spraying a special wear-resistant alloy. S1, base material surface treatment; s2, a spraying process; s3, carrying out a heat treatment process; S4, carrying out later inspection and performance testing; the base material surface treatment comprises base material surface cleaning, sand blasting treatment and drying treatment, and the spraying process comprises spraying equipment preparation. By introducing the heat treatment process, metallurgical bonding between the coating and the base material is further enhanced, the compactness and wear resistance of the coating are improved, oxidation, melting and deformation of the coating at high temperature are effectively prevented through heating and heat preservation under inert gas protection and the natural cooling process, and the wear resistance of the coating is improved. Meanwhile, the problem that the internal stress of the coating is too large due to rapid cooling is avoided, under the combined action of a series of measures, the coating has excellent wear resistance, corrosion resistance and high-temperature stability, the service life of the coating is remarkably prolonged, and the overall performance of a product is improved.

The invention relates to the technical field of motors, and discloses a deep-sea robot driving motor with multiple modular stators, the deep-sea robot driving motor comprises a casing, a rotor unit and multiple modular stators, a cavity is arranged in the casing, and cooling oil circularly flows in the cavity; a rotating shaft is arranged in the machine shell in the axial direction, the rotor unit is arranged on the rotating shaft, the multiple modular stators are arranged on the inner wall of the machine shell at intervals in the axial direction and correspond to the rotor unit, a heat dissipation cavity channel is formed in a clamping area between every two adjacent modular stators, and a heat dissipation channel is formed between each modular stator and the rotor unit. And the heat dissipation channel is communicated with the heat dissipation cavity channel and is used for allowing cooling oil to flow through. According to the invention, the cooling oil only needs to circularly flow in the cavity, so that effective heat dissipation and cooling can be carried out on the modular stator; therefore, on the basis that the weight of the deep-sea robot driving motor does not need to be obviously increased, the problem that the epoxy resin for insulation is stripped due to overheating of the modular stator can be effectively avoided.

The invention provides a protective layer for prolonging the service life of a blast furnace cooling wall and a preparation method, and belongs to the field of blast furnace ironmaking. The protective layer for prolonging the service life of the blast furnace cooling wall comprises a base coat, the surface of the blast furnace cooling wall is covered with the base coat, and coating of the base coat is nickel-based alloy powder; the transition layer covers the surface of the priming layer, and a coating of the transition layer comprises nickel-based alloy powder and blast furnace slag powder; the furnace slag layer covers the surface of the transition layer, and a coating of the furnace slag layer comprises blast furnace slag powder and a reinforcing material. The thermal expansion coefficient of each layer is gradually changed through the multi-layer design, the slag layer is prevented from peeling off, the bonding strength of the slag layer is improved, the protective layer prepared through the method is far thicker than a common coating, the situation that the protective layer is completely abraded is not prone to occurring in the abrasion and corrosion environment, the cooling wall is more effectively protected, and the service life of the cooling wall is prolonged. The service life of the blast furnace cooling wall is prolonged.

The invention discloses a high-weather-resistance self-cleaning nano silicon coating and a preparation process thereof, and relates to the technical field of coatings. In order to improve the stain resistance of the coating, the nano silicon polyester resin which can be cured by moisture and has a relatively strong self-cleaning effect is prepared, firstly, 3-amino-4-fluorobenzoic acid, tetramethoxysilane and the like are used as raw materials for reaction, and by controlling the reaction conditions, the nano silicon polyester resin is prepared. A nano silicon resin polymer containing nano silicon dioxide is generated; the existence of nano silicon dioxide can effectively improve the micro-nano structure of the coating and control the contact angle between water drops and the surface of the coating, and then the obtained nano silicon resin polymer reacts with isocyanate substances and the like, so that the final synthetic resin contains part of free isocyanate groups, and the surface of the coating is protected. The isocyanate groups can be combined with water molecules in air, so that the moisture curing effect is realized, the construction difficulty of the coating is effectively reduced, and the coating can be used for protection and self-cleaning maintenance of building exterior walls.

The invention belongs to the field of paper products such as paper and paper plastic, and particularly relates to an oil-proof coating composition for paper products and application of the oil-proof coating composition for the paper products, the coating composition comprises a component A and a component B, the component A is one or more of a biomass material with a dendritic or network structure or a cationized biomass material with a dendritic or network structure; the component B is selected from one, two or more of polyhydroxyalkanoate, alkyl ketene dimer, polyglycolide, polylactide, copolymer of butylene adipate and butylene terephthalate, cellulose ester and cellulose ether; the component C is selected from one, two or more of beewax, palm wax, vegetable wax, modified starch, montmorillonite and lamellar clay. The oil-proof coating composition disclosed by the invention does not contain non-degradable petroleum-based high polymer materials, and the components of the oil-proof coating composition are degradable materials in a natural environment, so that the oil-proof coating composition is relatively environment-friendly.