173results about How to "Improves Strength and Toughness" patented technology

The invention relates to a preparation method of a flexible binding agent-free self-support combination electrode, comprising the following steps of: adding active electrode materials into flexible conductive material-containing even dispersion liquid according to specified proportion or generating electrode precursor materials of active electrode materials in the manner of proper reaction; sufficiently stirring, so that the active electrode materials are evenly dispersed among the active electrode materials or the surfaces of the active electrode materials; and adding third phase material-containing even dispersion liquid according to specified proportion, stirring, filtering, washing, and drying.

The invention relates to aluminum alloy for high-pressure casting. The aluminum alloy for high-pressure casting comprises, by weight percentage, 4.5-7.5 % of silicon, 0.5-1.0 % of copper, 0.5-1.0 % of magnesium, 0.3-1.0 % of iron, 0.3-0.5 % of zinc, 0.3-0.5 % of manganese, 0.3-0.5 % of nickel, 0.13-0.15 % of strontium, 0.01-0.003 % of titanium, less than 0.003 % of boron, and lead as the rest. The aluminum alloy for high-pressure casting effectively improves the strength and tenacity of aluminum alloy, grains in the aluminum alloy microstructure are refined evenly, and the high-pressure casting performance of the aluminum alloy is effectively improved.

The invention provides bone china and a preparation method thereof and relates to chain forming products characterized by components. The bone china is sepiolite mineral nanofiber toughened bone china and comprises the following components in percentage by weight: bone powder 30-40%; Laiyang soil 9-15%; albite 15-20%; Datong soil 5-8%; Fangzi soil 5-10%; Longyan soil 15-20%; and sepiolite mineral nanofiber 2-8%. The preparation method comprises the following steps: treating sepiolite by a jet mill to obtain the sepiolite mineral nanofiber which is used as raw materials of blank materials by required weight percent; and preparing the raw material into the blank materials by adding water for ball-milling, sieving, deironing and aging and rotting; carrying out blank forming, drying and fettling on the blank materials to obtain a blank body; and then porcelainizing to prepare the sepiolite mineral nanofiber toughened bone china. The bone china has higher toughness, simple preparation process and low preparation cost.

The invention discloses a preparation method of a graphene alloy nanocomposite and an SLM (Selective Laser Melting) forming process. According to the preparation method, turbid liquid is prepared through the ultrasonic vibration of anhydrous ethanol, so that the graphene is uniformly dispersed in the anhydrous ethanol, the graphene is uniformly dispersed, then after the graphene anhydrous ethanolturbid liquid is mixed with high-temperature alloy in proportion, the graphene and partial residue are distributed in the grain boundary and crystals by participating in the interfacial reaction, so that the strength and toughness of a formed part are improved, and the hot cracking tendency is reduced; the addition of graphene changes the organization form of the material; and in the SLM forming process, the graphene in the graphene high temperature alloy nanocomposite is used as a heterogeneous nucleating agent, and increases the nucleation rate in the solidification crystallization process.The graphene high temperature alloy nanocomposite is prepared by the dielectric barrier discharge plasma-assisted ball milling technique. The plasma enhances the activity of powder, so that columnar crystals preferentially growing change to isometric crystals, grains are refined and the performances are improved.

The invention discloses a machining method of wear-resistant cutters, which includes steps of pretreating; cleaning bases of the cutters in an ionized manner; depositing a Ti transitional layer on the surface of the bases of the cutters by means of multi-arc ion plating; depositing a TiN bottom layer on the Ti transitional layer by means of multi-arc ion plating; and depositing a TiN layer on the TiN bottom layer by means of unbalanced magnetron sputtering. Since coating layers are prepared and deposited by means of multi-arc ion plating and unbalanced magnetron sputtering, strength and ductility of the coating layers can be improved evidently, impact resistance and wear resistance of the cutters are better and the service lives of the cutters in mechanical engineering devices are prolonged effectively.

The invention relates to a polyurethane modified epoxy resin grouting material. The grouting material is characterized in that: the grouting material comprises an adhesive and a solid material according to a weight ratio of 1:4-8, wherein the solid material comprises coarse quartz sand, high aluminum cement, middle quartz sand, a pigment and fine quartz sand; and the adhesive comprises a polyurethane modified epoxy resin, a curing agent, an epoxy-based reactive diluent, a leveling agent, a defoamer and a dispersant. Compared with grouting materials prepared with the prior art, the polyurethane modified epoxy resin grouting material provided by the invention allows the toughness and the strength of the grouting material to be improved, the impact and the shock of mobile equipment to the base to be effectively reduced, the service life of the equipment and the base to be prolonged, better water resistance and oil resistance to be possessed and the cost to be reduced by about 50%.

The invention relates to a high-wet-strength wound dressing. Specifically, the wound dressing is formed by three layers of structures, outer layer material is sol fiber, middle layer material is woven fabric or knitted fabric or other nonwoven fabric, and the three layers of structures are connected together in a physical or chemical mode. The wound dressing can be used for nursing wounds of chronic ulcers such as a vein blood stasis ulcer, a stress ulcer, a diabetic foot ulcer and other chronic ulcer wounds including cave type or depressed type or the like ulcer wounds.

The invention provides a metal wire. The problem of easy breaking of the metal wire is solved while the technical problems of complex preparation process, high production cost and the like in the prior art are also avoided. The invention also provides a flexible display panel; at least one metal layer is formed by the metal wire; the technical problems of instable display performance, low reliability, short service life and the like of the display panel are solved; the metal wire provided by the invention comprises sub wires and stress barrier materials which are arranged in a stacked manner alternatively; the sub wires and stress barrier materials are the same in extension directions, wherein the number of the sub wires is at least two; the flexible display panel provided by the invention comprises a substrate; an insulating layer and a metal layer are alternately arranged on the flexible substrate; and at least one metal layer is formed by the metal wire.

The invention relates to the technical field of pultrusion PU (polyurethane) resin, in particular to a pultrusion PU resin composite material and a preparation method thereof. According to the pultrusion PU resin composite material, reinforced fibers and PU resin in a proper ratio are adopted, wherein the PU resin adopts aliphatic isocyanates to replace conventional aromatic isocyanates, further, primary hydroxyl polyether or primary hydroxyl polyester capable of improving mechanical strength of aliphatic PU and having a terminal group capable of reacting with isocyanates is added to form prepolymers, primary hydroxyl polyether or primary hydroxyl polyester having the terminal group capable of reacting with the isocyanates can improve the mechanical strength of aliphatic PU, and the aliphatic isocyanates have low probability of photooxidation, so that the service life of the composite material in wild and outdoor application is prolonged.

The invention discloses thin-gauge 1180MPa-grade dual-phase steel and a processing method thereof, and belongs to the technical field of steel rolling. The dual-phase steel comprises the following components in percentage by mass: 0.19%-0.23% of C, 0.10%-0.50% of Si, 0.60%-1.00% of Mn, not greater than 0.015% of P, not greater than 0.004% of S, 0.30%-0.70% of Cr, 0.020%-0.060% of Als, and the balance Fe and inevitable impurities. The dual-phase steel is produced through a continuous casting and rolling process for a sheet billet, and the processing method comprises the processes of smelting, refining, continuous casting and rolling for a sheet billet, cooling, coiling and leveling; and batch stable manufacturing for the thin-gauge 1180MPa-grade dual-phase steel with a thickness of 1.0-3.0mm is finally achieved, the production cost is lowered, and moreover, excellent comprehensive mechanical property is achieved, and the thin-gauge 1180MPa-grade dual-phase steel is capable of replacingcold-rolled dual-phase steel for manufacturing a vehicle body structural member of a passenger vehicle.

The invention discloses a method for preparing polyurethane elastic fibers through mixed polyol. The method comprises the following steps: 1) mixing diethylene glycol phthalic anhydride polymer, polytetramethylene ether glycol and polyethylene glycol so as to form the mixed polyol, and adding diisocyanate into the mixed polyol to form a prepolymer; 2) dissolving the prepolymer into dimethylacetamide or dimethylformamide to react with monamine and furadiamine substances to generate a polyurethane urea stock solution, and adding an antioxidant, an anti-ultraviolet agent and a yellowing-resistant agent into the polyurethane urea stock solution, storing, curing and preparing into a spinning solution; 3) performing dry spinning so as to obtain polyurethane elastic fibers. The strength and toughness of the polyurethane elastic fibers prepared through the method are superior to other general products.

The invention discloses an automobile sound insulation pad and a preparation method thereof. The sound insulation pad comprises a finish coat layer, a first sound insulation layer, a blend fiber mat, a second sound insulation layer and a honeycomb bottom layer which are arranged in sequence from top to bottom, the finish coat layer is made of PC/ABS alloy, the first sound insulation layer and the second sound insulation layer are both made of PP/PET composite short fiber, the inner wall of the honeycomb bottom layer is coated with an inorfil coating layer, the inorfil coating layer is a plant fiber coating layer, and the thickness of the plant fiber coating layer ranges from 20 mm to 35 mm. The automobile sound insulation pad obtained through the preparation method is low in weight, good in sound absorption effect, environment friendly and capable of being recycled and reused, can satisfy use requirements of customers well and conforms to the requirements of light weight, environment friendliness and comfort for modern automobiles.

The invention discloses glass fiber mat-reinforced silica aerogel and a preparation method thereof. The glass fiber mat-reinforced silica aerogel comprises, by weight, 40-70 parts of a glass fiber mat, 4-30 parts of a silica aerogel solution, 2-10 parts of a modifier and 0.5-1 part of a water soluble phenol-formaldehyde resin solution. The preparation method comprises 1, sol solution preparation, 2, mixed solution preparation, 3, glass fiber cotton mat preparation, 4, glass fiber and mixed solution mixing, 5, aging and 6, aging. The glass fiber mat-reinforced silica aerogel improves silica aerogel toughness and strength, has flexible treatment aging and drying processes so that aerogel continuous production is realized, has excellent adsorbability, is soft and has good hydrophobicity.

The invention relates to a copper-based friction material suitable for a carbon ceramic brake disc and a preparation method thereof. The friction material comprises the following components in percentage by mass: 52-60% of copper powder, 12-20% of iron powder, 2-4% of molybdenum disulfide powder, 5-9% of granular graphite powder, 3-6% of flake graphite powder, 1-4% of ferrochrome powder, 1-4% of ferrosilicon powder, 2-6% of ferroboron powder, 4-8% of ferromanganese powder, and 1-3% of ferrovanadium powder. The copper-based friction material is prepared by proportioning, mixing, pressing and pressure sintering. The copper-based friction material adopts prealloyed powder comprising ferrochrome, ferrosilicon, ferromanganese, ferroboron and ferrovanadium as a friction component, the good heatconductivity, high hardness and high toughness of the prealloyed powder are fully utilized, the heat conductivity of the friction material is further improved, the comprehensive mechanical property ofthe friction material is improved, higher friction coefficient and good wear resistance are obtained when the friction material is matched with the carbon ceramic brake disc, and the excellent braking effect is ensured.

The invention relates to an inner heater protection tube made of silicon carbide ceramic composite material and a preparation method thereof. The inner heater protection tube made of silicon carbide ceramic composite material comprises an outer silicon carbide layer, an inner silicon carbide layer and a carbon fiber reinforced layer; the outer silicon carbide layer is arranged on the outer surface of the carbon fiber reinforced layer, and the inner silicon carbide layer is arranged on the inner surface of the carbon fiber reinforced layer. The invention also relates to a preparation method of the inner heater protection tube made of silicon carbide ceramic composite material. The inner heater protection tube made of silicon carbide ceramic composite material prepared by the invention has high thermal conductivity, good thermal shock resistance, corrosion resistance, and long service life; when used in the metal smelting field, the inner heater protection tube of the invention can reduce the number and cost of equipment shutdown maintenance and replacement, significantly improve the production efficiency, and reduces the production cost.

The invention discloses a wear-resisting corrosion-resistant antibacterial aqueous coating which comprises the following raw materials in parts by weight: 50-55 parts of epoxy resin emulsion, 25-30 parts of acrylic emulsion, 20-28 parts of polystyrene emulsion, 10-15 parts of shell-lac tablet, 40-45 parts of natural latex, 3-6 parts of hydroxyethyl cellulose, 2-5 parts of carboxymethyl cellulose, 1-3 parts of fumed silica, 15-20 parts of styrene-butadiene thermoplastic elastomer, 10-15 parts of polyamide emulsion, 15-20 parts of sodium dodecylbenzene sulfonate, 10-15 parts of lauryl silver sulfate, 5-10 parts of nano-silver, 5-10 parts of titanium nitride, 5-10 parts of aluminum nitride, 10-15 parts of sepiolite powder, 10-15 parts of blast furnace slag powder, 2-4 parts of cerium oxide, 10-14 parts of a defoaming agent, 25-28 parts of a leveling agent, 2-4 parts of an aluminum-zirconium coupling agent TL-3, 3-4 parts of a filming cosolvent. 5-10 parts of a curing agent and 90-105 parts of water.

The invention relates to the technical field of PVC (Polyvinyl Chloride) plates, in particular to a PVC building template. The PVC building template comprises a plurality of layers of PVC sheets and one or more of reinforced layers arranged among the PVC sheet layers, and the PVC sheet and the reinforced layer are integrated into a whole structure by hot pressing. The PVC building template has low production cost, favorable strength and toughness, convenient mounting and dismounting and a lot of turnover number, saves the working hour of construction, is water proof and corrosion proof, can be recycled and processed for reuse, has little influence on environment and solves the technical problems of high construction cost in a building and bridge construction project, great consumption of natural resources and non-ideal quality and progress of a construction project.

The invention provides large-scale non-quenched-and-tempered steel rolling equipment and a rolling production method thereof. Through rolling with temperature control, the finish rolling temperature of large-scale non-quenched-and-tempered steel bars is controlled stably, low-temperature deformation is achieved, and grains are refined, so that plasticity and toughness are obviously improved whilethe high strength of large-scale non-quenched-and-tempered steel is ensured; and by intervening control cooling after rolling, precipitation strengthening, segregation strengthening and change of microstructure of micro alloying elements in large-scale non-quenched-and-tempered round steel are controlled, so that a stable metallographic structure and comprehensive mechanical properties are obtained. According to the rolling production method, the product surface quality is ensured, meanwhile, the defects that controlled rolling and controlled cooling cannot be achieved by a large-scale round steel production line; as for the large-scale non-quenched-and-tempered round steel obtained through the method, scratch on the surface of rolled pieces by a traditional water tank is avoided, oxidizedscale is controlled, and the surface quality of a rolled material is improved; and the mechanical property of the steel is stable, the requirements of controlled rolling and controlled cooling of thenon-quenched-and-tempered steel are met, and thus the mechanical property of the large-scale non-quenched-and-tempered steel is stabilized.

The invention relates to steel for an oil casing pipe. The steel comprises the following chemical components by weight percent: 0.25-0.35% of C, 0.1-0.6% of Si, 0.8-1.5% of Mn, not more than 0.015% of P, not more than 0.003% of S, 1-1.5% of Cr, 1-1.5% of Mo, 0.05-0.12% of V, 0.02-0.04% of Nb, 0.01-0.04% of Ti, 0.01-0.08% of Al, 0.0005-0.005% of Ca and the balance of Fe and inevitable impurities. A steel pipe which is obtained through smelting, continuously casting, perforating and hot-rolling by using the components is insulated for 30-60 minutes at an austenitizing temperature of 880-930 DEG C, is cooled with air to 830-850 DEG C after discharged and undergoes water quenching, undergoes high-temperature tempering at 580-620 DEG C and is insulated for 40-80 minutes to obtain the oil casing pipe. The steel grade of the obtained oil casing pipe can be above 160ksi and the impact energy is above 70J. The obtained oil casing pipe has high strength and toughness.

The invention provides an inflation forming die used for concrete padding, comprising a flexible die wall (1) and an inflation plug-in module (2), wherein the flexible die wall (1) is closed to form a forming die. The invention is characterized in that the inflation plug-in module (2) is an inflation connector which can automatically close when a plug-in module is drawn out, and the flexible die wall (1) is provided with the inflation connector. Therefore, an inflation mandrel can be transported under a deflated state, and can be inflated and mounted at the construction field, thereby facilitating the transportation and greatly reducing the transportation cost; moreover, the inflation connector which is arranged on the forming die and can automatically close when the plug-in module is drawn out is advantageous to the prevention of gas leakage for the forming die on the position of the inflation connector; meanwhile, a padding component has the characteristics of light self-weight, low cost, good shakeproof performance, simple, convenient and quick production, convenient transportation and so on so as to achieve the aim of the invention, is applicable to a cast-in-situ concrete hollow floor, a cast-in-situ concrete roof, a cast-in-situ foundation slab, a cast-in-situ concrete wall body and a cast-in-situ concrete hollow bridge, in particular to a cast-in-situ concrete hollow flat slab.

The invention provides a stoneware sheet and a preparation method thereof. The stoneware sheet comprises the following chemical components in percentage by weight: 55-68% of SiO2, 14-28% of Al2O3, 0.5-1.8% of Fe2O3, 0.2-1.5% of TiO2, 1-12% of CaO, 0.3-1% of MgO, 2-5% of K2O and Na2O and 5-30% of fiber reinforcer. The preparation method comprises the following steps: independently ball-milling and pulping the fiber reinforcer, mixing with other pulping raw materials, carrying out spray granulation, and dry-pressing to obtain the green body. The stoneware sheet has the advantages of favorable adhesiveness, high strength, favorable flatness, high resilience and flexibility, high abrasive resistance, favorable anti-fouling performance, fire resistance, high temperature resistance, long service life, no radioactive contamination, light weight and the like.

The invention relates to super-high temperature resistant ceramic and a preparation method thereof, in particular to a Zr2[Al(Si)]4C5- ZrB2-SiC composite material and a preparation method thereof. The composite material is characterized by comprising a Zr2[Al(Si)]4C5 matrix and two reinforced phases of ZrB2 and SiC, wherein the ZrB2 accounts for 7.5-22.5 percent based on total volume of the material, and SiC accounts for 2.5-7.5 percent based on the total volume of the material. The preparation method comprises the following steps of: weighing ZrH2 powder, Al powder, C powder, graphite powder and B4C powder according to mole ratio of 2: (2.1-2.6): (0.47-0.71): (2.92-3.54): (0.12-0.41); uniformly mixing original materials for 10 to 24 hours by a physical mechanical method; loading into a graphite mold for cold press molding; heating in a hot pressing furnace which Argon gas is introduced and serves as a protective gas to 1800 to 1900 DEG C; and performing in-situ reaction and hot pressing sintering for 1 to 2 hours, wherein the sintering pressure is between 25 and 30MPa. The preparation method is simple, and the e performance of the material is excellent.

The invention relates to a special fruit bag for a pomegranate and a preparation method of the fruit bag. The special fruit bag is prepared from the following components in parts by weight: 70-80 parts of linear low-density polyethylene resin, 20-30 parts of low-density polyethylene resin, 5-8 parts of antibacterial masterbatch, 2-3 parts of pest control masterbatch, 15-20 parts of antifog masterbatch, 15-20 parts of calcium carbonate masterbatch, 1-2 parts of ultraviolet absorbent, 0.1-0.5 part of antiblocking agent, 1-2 parts of antistatic agent, 1 part of liquid paraffin and 1-2 parts of foaming agent. The preparation method comprises the steps of uniformly stirring and mixing all the components in parts by weight, then, pouring the mixture into a film blowing machine to prepare a film bag with the thickness of 0.02-0.03mm, and sleeving a paper bag outside the fruit bag. The fruit bag is of a double-layer structure that the paper bag is sleeved outside a polyethylene bag, so that the strength and toughness of the fruit bag are enhanced, and the defects that the surface of the paper bag is rough to scratch the surface of a fruit and the paper bag is easy to tear and difficult to bag are overcome; in addition, the polyethylene bag is modified, so that the air and moisture permeability as well as pest control, antibacterial and anti-fog performances of the fruit bag are enhanced.

The invention discloses a method for preparing a geopolymer rubber composite material by utilizing a spent FCC (fluid catalytic cracking) catalyst. According to the method, spent FCC catalyst powder and fly ash serve as raw materials, an alkali activator is added to stimulate the activity of the spent FCC catalyst powder and the fly ash, waste rubber powder serves as filler, a proper amount of water is added, and stirring, forming and curing are carried out so as to prepare the geopolymer rubber composite material. The prepared geopolymer rubber composite material has the advantages that toxicand harmful substances such as heavy metal ions can be efficiently cured, meanwhile, toughening materials such as waste rubber are added, so that the disposal amount of the spent FCC catalyst is increased, and the toughness and strength of geopolymer are improved. The method has the advantages that the spent FCC catalyst which pollutes the environment can be safely disposed, the waste rubber is fully utilized, and in addition, the toxic and harmful spent FCC catalyst and the waste rubber which pollutes the environment are turned into wealth.

The invention discloses a formula and a making method of a plastic tube. The formula comprises 80-120 parts of PVC resin, 8-20 parts of a filler, 4-12 parts of a flexibilizer, 1-6 parts of a compositestabilizer, 0.5-2 parts of ACR, 0.1-0.5 part of a lubricant and 0.01-0.1 part of a colorizing agent. The addition of MBS and ACR to the formula of the plastic tube remarkably improves the strength and the toughness of the plastic tube and enhances the strength and the toughness of the plastic tube; the composite stabilizer is a liquid calcium-zinc composite stabilizer, contains no lead element, and reduces environment pollution generated by burying; and the plastic tube has the advantages of reasonable formula, high strength, good toughness, small environmental pollution, and realization of wide promotion and application.

The invention provides a cavitation-resistant and energy-saving modification method of a water turbine. The method provided by the invention comprises the following steps: (1) carrying out sand blasting on the whole rotating wheel, blades and the lining of a draft tube and requiring to reach an Sa2.5 level; (2) repairing cavitation pits on the rotating wheel of the water turbine, the blades and the draft tube by adopting a titaniferous stainless steel inlaying method or a nano plastic steel polyurethane elastomer scraping method after nails are planted; and (3) coating a nano plastic steel 8103 wear-resistant and cavitation-resistant coating and a nano plastic steel 8102 ultra-smooth coating. The cavitation-resistant and energy-saving modification method provided by the invention is used for repairing the abrasion-resistant and cavitation-resistant components of the water turbine and coating the whole flow passage component, thereby improving the cavitation-resistant and abrasion-resistant capabilities of the water turbine, increasing the power execution and prolonging the overhaul period.

The invention discloses ultrahigh-strength and high-toughness steel for a pumping rod, which comprises the following chemical components in percentage by mass: 0.32-0.38% of C, 0.17-0.37% of Si, 1.60-1.80% of Mn, 1.10-1.30% of Cr, 0.20-0.30% of Mo, 0.20-0.30% of V, 0.015-0.035% of Al, no more than 0.020% of P, no more than 0.010% of S, no more than 0.002% of [O], no more than 0.0002% of [H] and the balance of Fe. The production process comprises the following steps: smelting in a conventional converter, refining in a refining device, performing silicon-calcium-barium end deoxidation in the late stage of the refining process, performing RH degasification and inclusion removal after refining, casting molten steel into a continuous casting blank, and rolling into phi19-25mm round steel. The invention is reasonable in component design and advanced in process; compared with ultrahigh-strength steel for a pumping rod available on the existing market, the steel disclosed by the invention has higher strength and toughness, the tensile strength Rm is no less than 1200 MPa, the extension percentage delta5 is no less than 12%, the percentage reduction in area Z is no less than 48%, accidents of pumping rod breakage in a high-load environment can be effectively decreased, and the economic loss can be obviously reduced.

The invention relates to a cable reinforcing rib which comprises the following components in percentage by weight: 35-48% of continuous basalt fiber, 2-8% of glass fiber, 6-12% of carbon fiber and 37-62%. The continuous basalt fiber, glass fiber and carbon fiber are compounded on the resin matrix. The cable reinforcing rib greatly enhances the strength and flexibility of the cable, thereby satisfying the requirements for submarine cables.

The invention discloses a flow guiding ring reinforced type ring type cooled fan for car engine cooled system, which is characterized by the following: comprising with tray, boss, fly and flow guiding ring; connecting the fly and the flow guiding ring together; embedding metal mesh ring into the flow guiding ring with modified reinforced nylon as material; embedding the metal mesh ring on the outer rim of the flow guiding ring. This metal mesh can increase durability, tenacity and intensity of the flow guiding ring greatly.

The invention provides an ultrahigh-strength high-toughness high-conductivity copper-nickel-tin alloy which contains nickel, tine, yttrium, niobium, scandium and cerium elements. The total mass of theyttrium, niobium, scandium and cerium elements is less than or equal to 0.5 percent of the mass of the copper-nickel-tin alloy. The copper-nickel-tin alloy has high strength, toughness and conductivity, and is wide in application range. The invention further provides a preparation method of the copper-nickel-tin alloy. The preparation method of the copper-nickel-tin alloy concretely comprises thesteps of preparing materials according to the mass percent of element compositions, and adopting a gas atomization method for preparing to obtain alloy powder; adopting hot isostatic pressure sintering on the alloy powder to obtain a copper-nickel-tin alloy ingot blank; and carrying out solution treatment and warm deformation strengthening treatment on the copper-nickel-tin alloy ingot blank so as to obtain the ultrahigh-strength high-toughness high-conductivity copper-nickel-tin alloy. According to the preparation method, multiple compound factor strengthening and toughening copper alloys are implemented and utilized, and the obtained copper-nickel-tin alloy has the characteristics of refined crystalline strengthening, strain strengthening, dispersion strengthening and precipitation hardening at the same time so as to obtain high strength, toughness and conductivity.