46results about How to "Increased Diffusion Enhancement Effect" patented technology

The invention relates to hot-work die steel for an extrusion wheel and a manufacturing method of the die steel. The invention adopts the technical scheme that the manufacturing method comprises the following steps: hot-forging after scrap steel or molten iron and scrap steel are smelted in an electric furnace and are subjected to electroslag remelting or vacuum induction melting and then carry out spheroidizing annealing at a temperature of 700-880 DEG C; quenching at a temperature of 1,020-1,120 DEG C and tempering at a temperature of 530-650 DEG C, wherein the hot-work die steel has a hardness of up to 40-52HRC and a tensile strength of up to 1,850-1,955MPa. The hot-work die steel comprises the following chemical components in percentage by weight: 0.30-0.50wt% of C, 0.80-1.20wt% of Si, 0.2-0.5wt% of Mn, 3.00-5.00wt% of Cr, 1.00-1.50wt% of Mo, 0.70-1.20wt% of V, 0.005-0.03wt% of N and less than 0.030wt% of P, less than 0.030wt% of S and the balances of Fe and inevitable impurities. The steel has the characteristics of low cost, good thermal fatigue property, high heat stability and excellent comprehensive property and can be used for manufacturing the extrusion wheel of a continuously-extrusion-molded coating machine and other hot-work dies.

The invention relates to a thermal treatment process for a TC18 titanium alloy and belongs to the technical field of materials. A method comprises the following steps: preserving heat of the TC18 titanium alloy at the temperature between Tbeta-60 DEG C and Tbeta-100 DEG C (Tbeta is the beta-phase transition temperature of the alloy) for 2-8 hours, and cooling to the room temperature through air cooling or water cooling; aging the alloy at the temperature of 540-600 DEG C for 4-12 hours, and cooling to the room temperature through air cooling. By selecting the heat-preserving temperature, time and cooling way, the microscopic structure of the alloy can be regulated and controlled effectively, a microscopic structure in which an equiaxial phase alpha (the content is higher than 10 percent by volume, and the size is greater than 2 microns), a flaky phase alpha (the thickness is greater than 0.5 micron) as well as a large number of fine needle phase-alpha and phase-beta substrates are matched is realized, the TC18 titanium alloy is high in strength, plasticity and toughness, and the problems of poor alloy strength in a dual annealing process and difficulty in meeting the use requirements on the plasticity and toughness of the alloy in a solid solution-aging process are solved. The method is suitable for industrial application.

The invention discloses an oxide dispersion reinforced platinum-based alloy, which comprises a platinum alloy base material and a dispersion reinforcing phase dispersed in the platinum alloy base material, wherein the dispersion reinforcing phase consists of an oxide of boron, an oxide of erbium and an oxide of at least one of lanthanum and zirconium; and elements except oxygen in the dispersion reinforcing phase accounts for 0.015 to 0.8 percent of the total weight of the oxide dispersion reinforced platinum-based alloy, wherein at least 85 weight percent of dispersion reinforcing phase is dispersed in the platinum alloy matrix in a nano granule state. The invention also discloses a preparation method for the platinum alloy material. The platinum alloy material has the characteristics of excellent high-temperature mechanical property, short production period and the like, and is particularly suitable for manufacturing a porous dense large-sized glass fiber leakage plate (3,200 to 8,000 holes) and other required platinum-based high-temperature alloy structural materials.

The invention provides WC particle reinforced composite brazing filler metal used for brazing hard alloy and a preparation method thereof, and relates to a brazing material and a preparation method thereof. The invention aims to solve the technical problems that a hard alloy brazed joint is easy to wear, relatively low in working strength and poor in wettability. The brazing filler metal provided by the invention is prepared from Al, Ti, Ni, W, Co, Cr, B, Fe, Si powder and WC particles. The preparation method comprises the following steps of weighing of raw materials, mechanical alloying of composite brazing filler metal, smelting and preparing of composite brazing filler metal foils. After going through a ball-milling process, a high-temperature smelting process and an ultrasonic vibrating process, the WC particles generate obvious refining behaviors, so that the dispersivity of WC particle reinforced phases in a brazing filler metal substrate is better, the uniformity of the whole brazing filler metal is improved, and therefore the performance stability of the brazing filler metal is ensured. The invention belongs to the field of brazing filler metal preparation.

The invention discloses a high-strength and high-toughness hypoeutectic aluminum-silica casting alloy and a preparation method thereof. The alloy comprises the chemical compositions of, by mass, 6.5-7.0% of Si, 0.45-0.65% of Mg, 0.1-0.15% of Cu, 0.05-0.06% of Be, 0.2-0.3% of Sc, 0.2-0.3% of Zr, 0.02-0.04% of Sr, no more than 0.1% of Fe, and the balance Al; after being subjected to Sc, Zr and Sr complex refinement modification treatment, 545-548 DEG C*12h solid solution and two-stage aging (120-130 DEG C*4 h low-temperature pre-aging, 170-175 DEG C*5-6 h final aging) heat treatment, the tensilestrength of the alloy reaches 366 MPa, the elongation rate is 6.5%, and compared with a commercial alloy A357 with equal components, the tensile strength and the elongation rate of the casting alloyare greatly improved.

The invention discloses a zirconium-containing copper silver titanium solder alloy. The zirconium-containing copper silver titanium solder alloy comprises the following components by mass percent: 10-45% of Ag, 1-4% of Ti, 0.5-5% of Zr and Cu for the rest. A vacuum melting and argon shield casting mode is adopted, silver and copper are molten at first and then titanium and zirconium are added. The zirconium-containing copper silver titanium solder alloy can be used for directly soldering copper alloys, iron steel, ceramics and diamonds. The zirconium-containing copper silver titanium solder alloy has the advantages as follows: the cost is low; a connector is high in mechanical strength, has smooth surface, is stable in quality and is good in uniformity after the copper alloys are soldered by the zirconium-containing copper silver titanium solder alloy; and the joint clearances can be fully filled up. The zirconium-containing copper silver titanium solder alloy can replace the conventional copper silver titanium solder and is suitable for large-scale industrial application.

The invention discloses a low-cost high-plastic-deformation magnesium alloy. The magnesium alloy comprises the following components in percentage by mass: 0.5-4.0% of Mn, 0.1-0.5% of Al and the balance of magnesium and inevitable impurities. In an Mg-Al-Mn ternary system, elements manganese and aluminum define an aluminum-manganese phase, and a rich manganese element defines an elemental manganesephase. In a preparation process, an extrusion process at a relatively low temperature is adopted to prepare a high-plasticity magnesium alloy material which is suitable for 3C product shells, bearingstructures for leisure goods as well as aerospace parts and the like; and the material is simple in preparation process, is low in cost, and has a very good industrialized prospect.

The invention provides a method for improving the low-temperature impact toughness of a high-strength steel hot rolled plate coil for engineering machines, which belongs to the technical field of steel for engineering machines. The method adopts a hot feeding and hot loading process, and the control technical parameters in the process include a hot loading temperature, a pouring superheat degree and a drawing speed, wherein the hot loading temperature is 500 to 600 DEG C, the pouring superheat degree is 18 to 20 DEG C, and the drawing speed is controlled to be 1.2 to 1.4m / min. Production is carried out in a mode of coarsely rolling by two machine frames and finely rolling by six machine frames, six-pass rolling is adopted in a coarse rolling phase, six-pass fine rolling is adopted in a fine rolling phase, and the rolling reduction in a non-recrystallized areas of austenite is 65 to 70 percent. A front-end laminar flow cooling mode is adopted for quickly cooling to a target temperature after fine rolling, and the cooling speed is improved to 10 to 15DEG C / s. After being removed from the production line, the plate coil is cooled by wind to 100 DEG C and then by air to room temperature. The method has the advantages of ensuring high strength and high toughness at the same time, saving consumption and improving production efficiency.

The invention discloses a high-strength and high-conductivity copper alloy wire material and a preparation method thereof. The high-strength and high-conductivity copper alloy wire material comprises,by mass percent, 0.2-0.6% of Ni, 0.1-0.4% of Fe, 0.07-0.17% of Mg, 0.10-0.15% of Ca, 0.01-0.09% of Ag, 0.1-0.3% of La, 0.01-0.03% of P, 0.01-0.03% of Sn, 0.1-0.5% of Ti and the balance Cu. By means of Ni solution strengthening, a microalloying refine structure and a second phase, the high-strength and corrosion-resistant Cu-Ni alloy wire material with excellent comprehensive performance is obtained.

The invention discloses a preparation method of a high-strength and wear-resistant copper alloy pipe. A high-strength and wear-resistant copper alloy pipe comprises following components in percentageby weight: 14 to 16 percent of nickel, 7 to 9 percent of tin, 0 to 0.2 percent of niobium, 0 to 0.8 percent of manganese, and the balance being copper and inevitable impurities. The invention furtherdiscloses the preparation method of the high-strength and wear-resistant copper alloy pipe. The preparation method of the high-strength and wear-resistant copper alloy pipe comprises the steps of carrying out compounding, smelting, casting, coping, forging, solution treatment, machining, cold rolling, sizing and detecting, and processing a banner, thus obtaining the high-quality copper-nickel-tinalloy pipe. The preparation method has the advantages that an ingot casting can be quickly heated to the temperature required for a process by adopting high-frequency induction heating, so that the defect of segregation caused by too slow heating speed is prevented; by controlling the heating speed, the final forging temperature and the cooling speed, the defect of segregation in a pipe blank is forbidden; and the complete copper-nickel-tin alloy pipe processing method is provided and is suitable for multi-specification copper-nickel-tin alloy pipe production in small quantities at the same time.

The invention relates to a method for preparing a nano spherical oxide dispersion strengthening phase, and provides a method for preparing the nano spherical oxide dispersion strengthening phase by adopting micron oxide for the first time. Firstly, nano oxide / matrix alloy composite powder with a completely amorphous structure is prepared by taking the micron oxide as a raw material and adopting astaged mechanical ball milling method. According to the preparation method, ball milling is carried out at the first stage, so that the oxide is subjected to crushing and structural transformation, nanocrystallization and complete amorphization are realized, and composite powder in which the nano oxide with a complete amorphous structure is uniformly distributed in matrix alloy powder is prepared;and in the second stage, the composite powder obtained in the first stage and the remaining matrix alloy powder are subjected to ball milling and evenly mixed. Then, the prepared powder is sequentially subjected to hot forming, hot rolling and heat treatment, and the nano spherical oxide dispersion strengthened alloy is obtained. According to the method, the dispersion strengthening effect of anoxide phase can be obviously improved, and the room-temperature and high-temperature mechanical properties of the alloy are obviously improved. The method is simple, the production efficiency is high,the prepared alloy is excellent in performance, and the strength and plasticity of the alloy are obviously superior to those of the same type of alloy.

The invention discloses a corrugated roller machining method. The corrugated roller machining method includes the following specific steps that raw materials are weighed by the weight part, a roller body of a corrugated roller is made of a 48 CrMo material in a hardening and tempering manner, shaft head welding and outer circle rough machining are conducted, the raw materials are machined into powder and then are put into a stirring machine to be evenly stirred, and a coating is obtained; the coating is evenly sprayed to the surface of the cleaned corrugated roller to be machined through a spray gun, and compound treatment and subzero treatment are conducted after the coating is dried; and the surface of the corrugated roller obtained after thermal treatment is completed is polished, and the tooth surface is plated with hard chrome or sprayed with a tungsten cobalt alloy. The surface of the corrugated roller machined through the corrugated roller machining method is high in surface hardness and reasonable in foundation hardness and has both the hardness and toughness, secondary mounting and grinding are not needed, the machining cycle is shortened, the service life is long, and the compound treatment and subzero treatment are adopted, so that the tempering resistance of the corrugated roller is improved greatly, grains obtained after subzero treatment is conducted are refined remarkably, the organization is more even, and the size is more stable.

The invention discloses high-strength aluminum alloy for a motor train unit gearbox and a preparation method of the high-strength aluminum alloy. The high-strength aluminum alloy comprises the following components in percentage by weight: Mg, Cu, Zn, Fe, Si, Ti, Cr, Te, Ge, Nb, Er, Mo, Ce, Sc, Zr, Sr and the balance of Al, wherein content of each of other impurity elements is equal to or less than 0.05%, and total content of other impurity elements is equal to or less than 0.2%. According to the invention, the alloy components are reasonable, the technology is optimized, and the obtained high-strength aluminum alloy has the advantages of light weight, high strength, corrosion resistance, low possibility of cracking and the like and can meet the performance requirements of the motor train unit gearbox.

The invention belongs to the technical field of nonferrous metal processing, and specifically relates to a method for producing a high-strength copper alloy large-sized cast ingot by vacuum melting. The high-strength copper alloy large-sized cast ingot is characterized by comprising the following components according to mass percent: 14 to 16% of nickel, 7 to 9% of tin, 0 to 0.2% of niobium, 0 to0.8% of manganese and the balance of copper and other impurities. The method comprises the following steps of preparing, drying a mold, charging a furnace, vacuumizing, smelting, discharging, insulating and cooling. The method has the advantages that niobium and manganese elements are added on the basis of copper-nickel-tin alloy, so that the dispersion strengthening effect of the alloy is increased, and the strength of the alloy is increased; compared with a continuous casting process, the alloy produced by adopting a vacuum induction smelting process has the advantages of high purity and inclusion reduction; and the upper half insulating and lower half cooling process is adopted on the mold and the cast ingot, so that the defects of shrinkage porosity and shrinkage cavities are avoided or reduced, the cast ingot cooling speed is increased, and the segregation defect is reduced.

The invention discloses high-strength aluminum alloy for a motor train unit gearbox and a preparation method of the high-strength aluminum alloy. The high-strength aluminum alloy comprises the following components in percentage by weight: Mg, Cu, Zn, Fe, Si, Ti, Cr, Te, Ge, Nb, Er, Mo, Ce, Sc, Zr, Sr and the balance of Al, wherein content of each of other impurity elements is equal to or less than 0.05%, and total content of other impurity elements is equal to or less than 0.2%. According to the invention, the alloy components are reasonable, the technology is optimized, and the obtained high-strength aluminum alloy has the advantages of light weight, high strength, corrosion resistance, low possibility of cracking and the like and can meet the performance requirements of the motor train unit gearbox.

The invention provides a hot working method for improving mechanical properties of medium carbon steel, and relates to the technical field of metal material science. The hot working method comprises the step: the medium carbon steel is sequentially subjected to high-temperature and high-pressure heat treatment and low-temperature and high-pressure heat treatment. The medium carbon steel is subjected to high-temperature and high-pressure heat treatment to obtain a fine martensite structure with the high dislocation density, dislocation provides more positions for precipitation of carbide in thesubsequent low-temperature and high-pressure heat treatment process, and the number of precipitated carbide particles is increased; and through low-temperature and high-pressure heat treatment, the diffusion coefficient of atoms is decreased under the high pressure effect, thus the number of the precipitated carbide particles is large, the precipitated carbide particles are not prone to growing up and thus are finer and more dispersed, the dispersion enhancement effect is enhanced, and the hardness and strength of the medium carbon steel are increased. Compared with the same process normal-pressure heat treatment, the hardness value and compression yield strength of the medium carbon steel treated through the hot working method are increased by 10.00-12.12% and 10.77-14.33% correspondingly.

The invention discloses an oxide dispersion reinforced platinum-based alloy, which comprises a platinum alloy base material and a dispersion reinforcing phase dispersed in the platinum alloy base material, wherein the dispersion reinforcing phase consists of an oxide of boron, an oxide of erbium and an oxide of at least one of lanthanum and zirconium; and elements except oxygen in the dispersion reinforcing phase accounts for 0.015 to 0.8 percent of the total weight of the oxide dispersion reinforced platinum-based alloy, wherein at least 85 weight percent of dispersion reinforcing phase is dispersed in the platinum alloy matrix in a nano granule state. The invention also discloses a preparation method for the platinum alloy material. The platinum alloy material has the characteristics ofexcellent high-temperature mechanical property, short production period and the like, and is particularly suitable for manufacturing a porous dense large-sized glass fiber leakage plate (3,200 to 8,000 holes) and other required platinum-based high-temperature alloy structural materials.

A method for improving the hardness of an Al-Si alloy mainly comprises the following steps: putting the Al-Si alloy into a resistance furnace, heating to 515-525DEG C, maintaining the temperature for 120-150min, discharging the alloy from the furnace, and cooling with water, wherein the alloy comprises 4.0-6.0wt% of Si, 0-2.0wt% of Cu, 0.3-0.7wt% of Mg, 0.2-0.7wt% of Mn, and the balance Al; and putting the Al-Si alloy subjected to solid solution treatment into a cubic press, adjusting the pressure to 1-3GPa, heating to 180-200DEG C, maintaining the temperature for 120-150min, and carrying out power-off pressure-maintaining natural-cooling to room temperature. The method has the advantages of simple process, convenient operation, low cost and stable quality; and the hardness of the Al-Si alloy processed through the method is greatly improved, is 60-68% higher than that of the unprocessed Al-Si alloy, and is 8-13% higher than that of the Al-Si alloy processed through routine methods.

The invention discloses a lining plate for a large semi-autogenous mill and a preparation method of the lining plate, and belongs to the technical field of metal casting manufacturing. The lining plate comprises the following components in percentage by weight: 0.60 to 0.80 percent of C, 1.80 to 2.20 percent of Cr, 0.30 to 0.60 percent of Mo, 0.30 to 0.80 percent of Si, 0.60 to 0.80 percent of Mn, 0.50 to 1.00 percent of Ni, 0.10 to 0.20 percent of V, 0.01 to 0.0.03 percent of Nb, 0.005 to 0.015 percent of Re, less than or equal to 0.025 percent of S, less than or equal to 0.025 percent of P and the balance of Fe and inevitable impurities. Through adjustment of raw material components and proportions and combination of a heat treatment method, the prepared lining plate has the characteristics of excellent wear resistance, good comprehensive mechanical properties, simple preparation method and low production cost, and is suitable for large-scale industrial production.

The invention discloses a high-impact 7-series aluminum alloy. The high-impact 7-series aluminum alloy comprises the following components of 0.1%-0.2% of Si, less than or equal to 0.2% of Fe, 0.35%-0.6% of Cu, less than or equal to 0.5% of Mn, 1.5%-2.5% of Mg, less than or equal to 0.15% of Cr, 6.0%-7.5% of Zn, 0.25%-0.35% of Zr, less than or equal to 0.1% of Ti and the balance Al, wherein other alloy elements are less than or equal to 0.05% individually and less than 0.15% totally, a ratio of the Si to the Fe is 1:0.6-0.8, and a ratio of the Zn to the Mg is 3.4-3.6:1.

The invention relates to a method for increasing the hardness of a copper-based multi-component alloy. The method mainly comprises that a metal type casting copper-based multi-component alloy is placed onto a cubic press and a high pressure aging treatment is performed, thermal insulation is performed for 60-120 min, and then power down pressure relief cooling is performed to a room temperature, wherein the pressure is 2-5 GPa, and the heating temperature is 480-550 DEG C. According to the present invention, the process has characteristics of simpleness, easy control and stable performance; and the copper-based multi-component alloy treated by the method can achieve the high hardness value, the structure is uniform and compact, the hardness value of the treated copper-based multi-component alloy is increased by about 28.05% compared to the copper-based multi-component alloy without the treatment, and the hardness value of the treated copper-based multi-component alloy is increased by about 10.54% compared to the copper-based multi-component alloy treated by the conventional heat treatment.

The invention discloses a hot work die steel, which comprises the following components: 0.36-0.40% of C, 0.10-0.40% of Si, 0.20-0.45% of Mn, 5.30-5.50% of Cr, 1.60 to 1.95% of Mo, 0.50 to 0.70% of V,0.20 to 0.40% of Co, less than 0.02% of P, less than 0.005% of S, and the balance being Fe; wherein C=1 / 25Cr+1 / 20Mo+1 / 12V+1 / 10Co. A preparation method is also provided, the forging beginning temperature of a steel ingot is 1130-1180 DEG C, and the optimum plastic deformation temperature range and the forging stopping temperature of an austenitic plastic deformation zone are above 800 DEG C; heating is carried out to 1050-1100 DEG C and insulation is carried out for 2-3 hours, and after dissolution of carbides, the second rapid air cooling is carried out to below a martensite temperature range.The steel structure of the hot work die steel is fine and uniform, and the hot work die steel is favorable for the stability of the high temperature hardness of the material.

The invention belongs to the technical field of nonferrous metal processing, and in particular relates to a method for producing high-strength copper alloy large-scale ingots by vacuum melting. The present invention is characterized in that it contains the following components and mass percentages: 14-16% nickel, 7-9% tin, 0-0.2% niobium, 0-0.8% manganese, and the balance is copper and other impurities. The invention comprises the following steps: batching, casting mold drying, furnace loading, vacuuming, smelting, furnace removal, heat preservation and cooling. The advantages are: niobium and manganese are added to the copper-nickel-tin alloy, which increases the dispersion strengthening effect of the alloy and is conducive to improving the strength of the alloy; the alloy produced by the vacuum induction melting process is higher in purity than the continuous casting process, and the inclusions Reduction; the mold and the ingot adopt the process of keeping the upper half warm and the second half cooling, which avoids or reduces shrinkage porosity and shrinkage cavity defects, and ensures faster cooling of the ingot, thereby reducing segregation defects.

A method for improving the hardness of copper-based multi-element alloys. The main method is to place the metal-cast copper-based multi-element alloys on a six-sided top press for high-pressure aging treatment. The pressure is 2-5Gpa, the heating temperature is 480-550°C, and the heat preservation After 60-120 minutes, turn off the power and release the pressure to cool down to room temperature. The process of the present invention is simple, easy to control, and stable in performance. The copper-based multi-element alloy treated by the method can obtain a higher hardness value, and the structure is more uniform and dense. Compared with the copper-based multi-element alloy before treatment, the hardness value is improved. About 28.05%; compared with conventional heat treatment, its hardness value increased by about 10.54%.

The invention discloses a preparation method of a high-strength wear-resistant copper alloy pipe, which comprises the following components and mass percentages: nickel 14-16%, tin 7-9%, niobium 0-0.2%, manganese 0-0.8%, and the balance is copper and unavoidable impurities, the present invention also discloses its preparation method: through steps such as batching, smelting, casting, grinding, forging, solution treatment, machining, cold rolling, sizing detection, strip treatment, etc., high-quality copper-nickel Tin alloy tubing. The advantages are: the high-frequency induction heating can quickly heat the ingot to the temperature required by the process, and prevent the segregation defects caused by the slow heating speed; control the heating speed, final forging temperature and cooling speed, so as to prevent the segregation in the tube billet Defects occur; a complete copper-nickel-tin pipe processing method is provided, and the method is suitable for the production of small batches of copper-nickel-tin pipes with multiple specifications.

The invention discloses a high-strength and high-thermal-conductivity copper alloy material roller sleeve and its preparation method, which is composed of the following components in mass percentage: Ni: 2.2wt% to 2.6wt%, Be: 0.2wt% to 0.6wt%, Si: 0.2 wt%~0.6wt%, Mg: 0.07wt%~0.17wt%, Ca: 0.04wt%~0.10wt%, Ag: 0.01wt%~0.05wt%, La: 0.1wt%~0.3wt%, Co: 0.01 wt%-0.03wt%, Al: 0.1wt%-0.5wt%, Cd: 0.1wt%-0.5wt%, and the balance is Cu. The present invention obtains a high-strength and high-thermal-conductivity Cu-Be alloy material with excellent comprehensive performance through the solid solution strengthening and microalloying of Ni to refine the structure and the second phase.

The invention discloses a preparation method of a Cr2Nb phase-containing high-strength high-conductivity high-temperature-resistant copper alloy, and belongs to the technical field of copper alloy preparation. The preparation method comprises the following steps that an Nb element is introduced on the basis of a traditional chromium-zirconium-copper material, and Nb powder and Cr powder are fullyactivated before ingot casting to obtain an unbalanced supersaturated solid solution, so that a Cr2Nb phase is easier to form in a copper alloy cast ingot. According to the preparation method, a process of combining atomization powder preparation and 3D printing is adopted, and low-temperature argon high-pressure cold air flow is adopted for carrying out cold casting treatment on metal liquid drops in the atomization powder preparation process, so that it is guaranteed that the Cr2Nb phase is fine and is in a sufficient supersaturated state, and the dispersion strengthening effect of a precipitated phase is improved; and the advantages of 3D printing are fully utilized, parts in complex shapes can be prepared, and the prepared parts have the advantages of being high in strength and excellent in high-temperature resistance.

The invention relates to methods for preparing and spraying aluminum bronze powder containing a dispersion-strengthening phase. The method for preparing the aluminum bronze powder comprises the following steps: using aluminum oxide dispersion-strengthened copper powder and nanometer aluminum powder which are prepared by using an inner oxidizing method, as the raw materials; using a gluing agglomerating method to cover a layer of nanometer aluminum powder on the surface of the copper powder; and drying at a vacuum environment. The plasma spraying process is used in the method for spraying the aluminum bronze powder, wherein a spraying powder is controlled within 15-18KW and the powder feeding speed is 20-35g / min. According to the method provided by the invention, the aluminum bronze compound powder is prepared by covering the dispersion-strengthened copper powder with the nanometer aluminum powder. By using the dispersion-strengthened copper powder and the nanometer aluminum powder as the raw materials for agglomerating, the defect that the aluminum oxide dispersion-strengthened copper powder cannot be directly prepared is solved. By covering the copper powder with aluminum, the melting degree of the powder is increased by utilizing the heatproof reaction between copper and aluminum, thereby reducing the spraying power, reducing the growth of the aluminum oxide dispersion-strengthened grains and enhancing the dispersion-strengthening effect.