58results about How to "Full play to enhance" patented technology

The present invention discloses one kind of carbon fiber reinforced Ni-base composite material and its preparation process, and relates to metal-base composite material. The carbon fiber reinforced Ni-base composite material consists of carbon fiber 30-35 vol%, Cu 6-8 vol %, and Ni 57-64 vol %. The technological process of preparing the composite material includes the steps of: pre-treatment of carbon fiber, electrodepositing Cu, washing, neutralizing, electrodepositing Ni, electrodepositing Ni to form, washing, stoving, cutting, vacuum hot pressing in mold, and cooling in the furnace. The present invention prepares the composite material in a three-step electrodepositing process, and the composite material has high heat strength, high elastic modulus, low density, high smelting point and other advantages, and may be used in the vane of gas-burning turbine engine, etc.

The invention discloses a truss framework composite material product, and a flowing medium forming mould and a forming method thereof. The truss framework composite material product consists of a framework reinforcing material, a skin material and a filling material, wherein the framework reinforcing material is formed by fixedly connecting rods and has the profile of the product; the skin material is attached to nodes of the framework reinforcing material, which serve as an outer profile; the filling material is embedded between the rods of the framework reinforcing material in the skin material; the flowing medium forming mould of the truss framework composite material product comprises a container, a cavity, a potting device and a flowing medium; and the forming method of the truss framework composite material product comprises the steps of potting the filling material into the cavity and curing the filling material to obtain the product. In the invention, the step of manufacturingthe mould cavity is saved, so that the manufacturing cost can be greatly reduced and the reinforcement function of the framework material can be fully exerted. The size of the product can be very large and is not limited to the conventional machining equipment, the length and the number of the rods of the reinforcing material are changed, and the skin material and the reinforcing material can very easily form the new cavity, so that the upgrading speed of the product is increased.

The invention belongs to the technical field of composite materials and relates to a thermoplastic polyester composite material and a preparation method thereof. The composite material consists of the following components in parts by mass: 50-60 parts of continuous glass fiber, 100 parts of thermoplastic polyester resin, 0.5-1.5 parts of a compatilizer and 0.7-0.9 part of an antioxidant. The composite material disclosed by the invention has the advantages that the composite board is light in weight, has high heat resistance and high mechanical property, particularly, has obvious bending performance, is environmental friendly and has recyclability.

The invention provides a g-C3N4/CNT nanohybrid material modified PPESK lubricating film and a preparation method thereof, and belongs to the technical field of film material preparation. Urea and CNTare calcined to prepare g-C3N4/CNT nanohybrid material modified PPESK resin, and then the modified PPESK lubricating film with high performances is prepared. The prepared film has high strength and toughness and outstanding tribological properties, and the preparation method is mild in reaction conditions, simple in preparation process, easy to operate, low in cost and suitable for large-scale production of polymer self-lubricating composite films.

A wood-plastic flooring structure convenient and quick to install comprises a supporting body, wood-plastic flooring unit bodies and rotatable buckles. Multiple parallel protruding guide rails are arranged on the supporting body in the length direction of the supporting body. Multiple inserting connecting grooves adjacent to the corresponding guide rails are evenly formed in the direction of the guide rails. Guide grooves are formed in the bottoms of the wood-plastic flooring unit bodies in the length direction of the wood-plastic flooring unit bodies and matched with the guide rails on the supporting body. The spliced sides where the wood-plastic flooring unit bodies are spliced with one another are provided with grooves in the long edge direction of the wood-plastic flooring unit bodies. Each rotatable buckle is in a T shape and comprises a horizontal clamping board and a vertical clamping board. Each horizontal clamping board is clamped in the grooves of the corresponding two adjacent wood-plastic flooring unit bodies. The bottom of each vertical clamping board is clamped in the corresponding inserting connecting groove in the supporting body. By the adoption of the provided wood-plastic flooring structure, the structural form that the supporting body and the wood-plastic flooring unit bodies are combined is adopted, dampness can be effectively prevented, installation is convenient and quick, and in the installation process, the labor cost and later maintenance cost can be saved.

The invention discloses a method for preparing a nano quasi-crystal reinforced Mg-Zn-Y alloy through reciprocation extrusion. The method comprises the following steps: A, preparing cast Mg-Zn-Y alloyaccording to atom percentages of set component elements as follows: 0.5-6% of Zn, 0.08-1.2% of Y and the balance of Mg, and the content ratio of atoms of Zn and Y is (5-7):1; B, annealing the cast Mg-Zn-Y alloy for 8-20 hours at 380-420 DEG C, and performing furnace cooling; C, keeping the temperature of the annealed Mg-Zn-Y alloy at 300-400 DEG C for 2-4 hours, and performing thermal extrusion, wherein the extrusion temperature is 300-400 DEG C, and the extrusion ratio is (9-60):1; D, putting the Mg-Zn-Y alloy after thermal extrusion processing in the step C into a thermal treatment furnace,heating to 540-600 DEG C, keeping the temperature for 5-20 minutes, and performing quenching; and E, keeping the temperature of the Mg-Zn-Y alloy obtained in the step D at 200-380 DEG C for 2-4 hours,and performing reciprocation extrusion, thereby obtaining the alloy. By adopting the method, a magnesium alloy which is excellent in yield strength, tension strength and ductility can be prepared.

The invention provides a polypropylene composite cable material and a preparation method thereof. The polypropylene composite cable material is prepared by, by weight, 100 parts of polypropylene resin, 0.5-1 part of nucleating agent, 0.4-0.9 part of antioxidant, 1-2 parts of lubricating agent, 3-4 parts of impact modifier, 10-15 parts of flame retardant, 5-10 parts of compatibilizer, 0.6-1.1 part of anti-ultraviolet agent and 14-19 parts of modified pottery clay. The polypropylene composite cable material is high in mechanical performance.

The invention discloses a natural silk-reinforced hydroxyapatite/chitosan composite film and a preparation method thereof. The composite film is obtained by a method of combining solution-casting andfiber in-situ reinforcement. The preparation method of the composite film comprises the following steps: firstly preparing a uniform composite liquid from nano-hydroxyapatite and chitosan; then casting a half of the nano-hydroxyapatite/chitosan composite solution into a film; thirdly laying natural silk on the film; and finally casting the remaining half of the nano-hydroxyapatite/chitosan composite solution on the silk and naturally drying to obtain the composite film. The novel composite film has rich sources of the raw materials, and the preparation method is simple. In addition, mechanicalproperties, degradation performance, osteoconductivity and antibacterial properties of the composite film can be regulated and controlled by component contents of the composite film, and the composite film with excellent performance is expected to be obtained for guiding bone tissue regeneration membranes.

The invention discloses a device for preparing a 3D printing oriented steel fiber reinforced cement-based composite material. The device comprises a motor, a linkage gear set, a primary steel fiber orientation unit, a secondary steel fiber orientation unit, a material conveying hopper and an auxiliary vibrator, wherein the linkage gear set comprises a driving gear and a driven gear; the primary steel fiber orientation unit comprises a steel fiber hopper, push type stirring blades, a rotating vertical shaft, propeller blades and a vertical rod; the material conveying hopper comprises a material storage bin, an extrusion pipe and an extrusion opening; and the secondary steel fiber orientation unit is a cylindrical permanent magnet. According to the device, directional distribution of steel fibers in the 3D printing steel fiber reinforced cement-based composite material in the printing direction is achieved, the steel fibers are distributed more evenly, the reinforcing effect of the steel fibers is fully achieved, the technical problems of material extrusion smoothness, printing material compactness, fiber protrusion on the surface of a printing test piece and the like during 3D printing of the composite material are solved, and the structural mechanical property of the composite material is improved.

A preparation method of anti-aging foamed styrene-butadiene rubber is disclosed. The preparation method comprises the following steps: step 1, preparing materials comprising 90-100 parts of styrene butadiene rubber, 45-50 parts of modified white carbon black, 8-10 parts of carbon black, 1.6-2 parts of zinc oxide, 12-15 parts of a coupling agent, 3-4 parts of an accelerant, 1.8-2 parts of sulfur and 2.7-3 parts of a foaming agent; step 2, internal mixing; 3, mixing; 4, vulcanizing and foaming. According to the invention, the modified white carbon black is adopted to reinforce the foamed rubber;the surface of the white carbon black is grafted with a modified anti-aging agent through the silane coupling agent, a non-polar silane molecular chain and a modified anti-aging agent molecular chainare attached to the surfaces of white carbon black particles to form an organic layer, so that the compatibility with a rubber matrix can be improved, the agglomeration between the white carbon blackcan be weakened, and the white carbon black is uniformly distributed in the rubber matrix; besides, the modified anti-aging agent molecules have excellent anti-aging performance and are uniformly distributed in the rubber matrix along with the white carbon black, so that the anti-aging performance is fully exerted.

The invention discloses SW-CNTs fiber-reinforced magnesium alloy-based composite wire material, which is composed of the following raw material components by weight percentage: 0.5-1.5% of SW-CNTs short fibers, the balance is magnesium alloy powder, and the weight percentages of the above components The sum is 100%. The wire avoids the problem of weak interfacial bonding strength caused by poor wettability between SW‑CNTs fibers and magnesium alloy matrix, and gives full play to the comprehensive mechanical properties and physical and chemical properties of SW‑CNTs reinforced magnesium alloy matrix composites. The preparation method is as follows: step 1, high-energy ball milling; step 2, preparation of billet by semi-solid injection pressing; step 3, extrusion preparation of ultra-fine diameter wire.

The orthogonal wound composite high-pressure gas cylinder has inner lining and reinforcing fiber wound to the outer surface of the lining. The reinforcing fiber is first wound axially to constitute axial reinforcing layer and then circumferential to constitute circumferential reinforcing layer with the two reinforcing layers being orthogonal. Onto the two semi-spherical end covers of the lining, there are upper and lower outer covers contacting with the end covers closely and the outer covers have notches with hooks for the reinforcing fiber to be wound axially. The cylinder is light and highpressure resistant.

The invention discloses a silicotungstic acid intercalated multi-component hydrotalcite-like lightweight thermal insulation material and a preparation method thereof. The preparation method comprisesthe steps: preparing a multi-component hydrotalcite-like precursor by a coprecipitation method; dropwise adding a silicotungstate solution into the multi-component hydrotalcite-like precursor slurry by an ion exchange method, and modifying the multi-component hydrotalcite-like precursor to obtain silicotungstic acid-multi-component hydrotalcite; and mixing the obtained silicotungstic acid-multi-element hydrotalcite, nano cellulose and an adhesive, and carrying out freeze drying to obtain the silicotungstic acid intercalated multi-element hydrotalcite lightweight thermal insulation material. The environment-friendly lightweight foam refractory material lightweight in weight, highly porous, low in heat conductivity coefficient and excellent in flame retardant effect is obtained; the nano-crystalline cellulose lightweight foam is endowed with excellent heat-conducting property and flame-retardant and heat-insulating effects by utilizing the synergistic flame retardancy of multi-componentmetal elements of the multi-component layered metal hydroxide and causing guest silicotungstic acid anions with a flame-retardant effect between layers of layered metal hydroxide.

The invention relates to a manufacture method of a high-performance recyclable airscrew for unmanned aerial vehicles. The manufacture method includes: making a core with 15-30% by weight of cork wood,evenly and tightly wrapping the surface of the core with 30% by mass of carbon fiber cloth, adding carbon fiber PA66 modified material, and performing high pressure resin transfer molding. The manufacture method has the advantages that the cord wood is used herein as a base, giving the advantages of light weight and easy attraction for other materials; carbon fiber is used as a basic reinforcingmaterial; the carbon fiber PA66 modified material is used as a filling dispersive material; the three materials provide an interface of certain binding strength; load that a resin base bears is transferred to reinforcing fibers through the interface so that the reinforcing effect of the reinforcing fibers is given to full play and the overall strength of the composite herein is improved; an airscrew manufactured herein has integrated structure made by one-off mold pressing and features high strength, light specific weight, recyclability and the like.

The invention discloses a GR reinforced magnesium alloy-based composite material wire. The GR reinforced magnesium alloy-based composite material wire comprises the following raw materials in percentage by weight: 0.5-1.5% of GR powder and the balance magnesium alloy powder, and the sum of the weight percentages of the components is 100%. The problems of multiple stratification and burning loss ofGR are avoided, the problem of the interface between single-layer graphene GR and magnesium alloy grains is solved, the reinforcing effect of the GR on a matrix is fully exerted, and interface microcracks are avoided. The invention also provides a preparation method of the composite material wire. The method comprises the following steps: 1, high-energy ball milling; and 2, extrusion forming, specifically, extrusion forming is carried out on the GR powder and the magnesium alloy powder subjected to ball milling in the step 1 in two steps, firstly reciprocating extrusion is carried out, and then normal forward extrusion is carried out, so that the graphene-reinforced magnesium alloy-based composite material wire is prepared.