CN109317667B - Preparation method of hybrid aluminum-based composite pipe - Google Patents
Preparation method of hybrid aluminum-based composite pipe Download PDFInfo
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- CN109317667B CN109317667B CN201811435658.XA CN201811435658A CN109317667B CN 109317667 B CN109317667 B CN 109317667B CN 201811435658 A CN201811435658 A CN 201811435658A CN 109317667 B CN109317667 B CN 109317667B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/093—Compacting only using vibrations or friction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/20—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
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- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
- B22F7/04—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers with one or more layers not made from powder, e.g. made from solid metal
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/20—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding
- B22F2003/208—Warm or hot extruding
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Abstract
The invention discloses a preparation method of a hybrid aluminum-based composite material pipe, which comprises the steps of filling particle reinforced aluminum-based composite materials with different volume fractions into an aluminum alloy pipe blank for pre-compaction, vacuumizing, heating, perforation hot extrusion compounding, heat treatment (including annealing, quenching and aging) and the like, wherein the particle reinforced aluminum-based composite material is densified under the action of high temperature and high pressure during extrusion, the composite strength of an interface between the particle reinforced aluminum-based composite material and an outer aluminum alloy matrix is improved, the deformability of the particle reinforced aluminum-based composite material is improved, and the problems of poor plastic toughness of the single particle reinforced aluminum-based composite material and difficulty in extrusion manufacturing of the hybrid aluminum-based composite material pipe are solved.
Description
Technical Field
The invention belongs to the technical field of metal matrix composite plastic processing, and particularly relates to a preparation method of a hybrid aluminum matrix composite pipe.
Background
The particle reinforced aluminum-based composite material has many excellent performances such as small specific gravity, high specific strength, elastic modulus, excellent high-temperature performance, corrosion resistance, high wear resistance and the like, but the fracture toughness and the plastic processing performance of the particle reinforced aluminum-based composite material are poorer than those of an aluminum alloy matrix material.
The metal laminated composite material is a material with excellent comprehensive performance, which is formed by two or more layers of metals with different performances through a certain compounding mode. With the development of modern industrial technology and various new technologies and industries, the requirements of people on the performance of materials are increasingly higher, and the performance of a single component material is difficult to meet the requirements under certain working conditions. The metal laminated composite material integrates the characteristics of all components in design, makes up the respective defects, has incomparable excellent comprehensive performance of single metal or alloy, and becomes one of the research hotspots of material science, so that the research on the metal laminated composite material becomes very extensive, and a great deal of research is carried out in the field of the metal laminated composite material in many countries, so that the metal laminated composite material is unprecedentedly developed. The processing method of the metal laminated composite material is various, including rolling composite, extrusion composite, explosion composite, electromagnetic composite and the like.
The history of the extrusion compounding process for preparing metal laminar composite materials dates back to the lead-coated cable production process developed by Borel in France and Wesslau in Germany in 1879. The forward extrusion coating and the lateral extrusion coating which are developed on the basis of the method are still widely used at present. The extrusion compounding method has many kinds, and is mainly used for producing pipe, rod and linear laminated metal composite materials.
The aluminum alloy laminated composite material is a common metal laminated composite material, wherein the aluminum alloy of the inner layer generally provides mechanical properties required by the composite material, and the outer coating layer has certain specific properties (such as strong corrosion resistance, good weldability, higher mechanical properties and the like). The main advantage of this extrusion method is that a large number of new surfaces are generated at the interface during the extrusion process, and the high temperature and high pressure conditions provided in the deformation zone are very favorable for the diffusion of atoms between the interfaces, so that metallurgical bonding is easily achieved.
However, how to combine the particle reinforced aluminum-based composite material and the aluminum alloy matrix into the hybrid aluminum-based composite material pipe, the development of the material and the preparation method, process and technology thereof are urgently needed in the field at present.
Disclosure of Invention
Aiming at the comprehensive excellent performance of the particle reinforced aluminum matrix composite and the metal layered composite, the process method for preparing the hybrid aluminum matrix composite pipe by carrying out solid-state hot extrusion compounding and heat treatment (comprising annealing, quenching, aging and the like) on the particle reinforced aluminum matrix composite and the aluminum alloy matrix material with different volume fractions is provided.
The invention relates to a preparation method of a hybrid aluminum matrix composite pipe, which comprises the following steps:
the method comprises the steps of loading the particle reinforced aluminum-based composite material into an aluminum alloy pipe blank, compacting, sealing two ends of the aluminum alloy pipe blank, installing a pipeline for vacuumizing, preferably a pure aluminum pipe at one end of the aluminum alloy pipe blank, vacuumizing the aluminum alloy pipe blank, sealing the pipe orifice of the pipeline to prepare a mixed aluminum-based composite material extrusion ingot blank, then heating and insulating the mixed aluminum-based composite material extrusion ingot blank, punching the mixed aluminum-based composite material extrusion ingot blank on a double-acting extruder to extrude the mixed aluminum-based composite material extrusion ingot blank into a pipe, conducting heat insulation on the pipe after air cooling, and finally conducting cold water quenching and aging heat treatment.
Further, the particle reinforced aluminum matrix composite material is SiC particles and/or Al2O3A mixture of particles and an aluminum alloy powder, wherein the aluminum alloy powder is any one of Al-Cu, Al-Si, Al-Mg-Si, Al-Zn-Mg-Cu, Al-Fe-V-Si series aluminum alloy powder, preferably Al-Cu, Al-Si, Al-Mg-Si, Al-Zn-Mg-Cu, and Al-Fe-V-Si series wrought aluminum alloy powder.
Further, SiC particles and/or Al2O3The particles have an average diameter of 8-20 μm, preferably 10-15 μm, SiC particles and/or Al2O3The volume fraction of the particles in the particle-reinforced aluminum-based composite material is 10 to 30%, preferably 12 to 16%. The average particle size of the aluminum alloy powder is generally 1 to 150. mu.m, preferably 5 to 50 μm, and more preferably 5 to 30 μm.
Furthermore, two ends of the aluminum alloy pipe blank are welded and sealed by using aluminum alloy hot rolled plates.
Further, compacting the particle reinforced aluminum matrix composite material in the aluminum alloy pipe blank by selecting from cold compacting and vibration compacting, wherein the relative density after compacting is more than 70%.
Further, the heating temperature of the mixed aluminum matrix composite material extrusion ingot blank is 400-550 ℃, preferably 420-500 ℃, and the heat preservation time is 3-5 hours.
Further, the double-action extruder has an extrusion rod speed of 30 to 100 mm/min, preferably 50 to 80 mm/min, and an extrusion ratio of 10 to 30, preferably 15 to 25.
Further, the heat preservation temperature of the pipe after air cooling is 350-.
Further, the aging heat treatment temperature is 100-.
The invention also provides a mixed aluminum-based composite material pipe prepared by the method, wherein the inner layer is a particle reinforced aluminum-based composite material, the outer layer is an aluminum alloy material, the thickness ratio of the inner layer to the outer layer is 10-50% (namely the thickness of the inner layer is 10-50% of that of the outer layer), and the particle reinforced aluminum-based composite material of the inner layer is SiC particles and/or Al2O3The particles are mixed with any one of Al-Cu, Al-Si, Al-Mg-Si, Al-Zn-Mg-Cu and Al-Fe-V-Si series aluminum alloy powder, preferably Al-Cu, Al-Si, Al-Mg-Si, Al-Zn-Mg-Cu and Al-Fe-V-Si series wrought aluminum alloy powder, and the outer layer aluminum alloy material is Al-Cu, Al-Mg-Si and Al-Zn-Mg-Cu series aluminum alloy cast ingot, preferably any one of Al-Cu, Al-Mg-Si and Al-Zn-Mg-Cu series wrought aluminum alloy cast ingot.
The invention has the beneficial effects that: the particle reinforced aluminum-based composite material is densified by means of extrusion at high temperature and high pressure, and simultaneously, the particle reinforced aluminum-based composite material and an outer aluminum alloy matrix are diffused to improve the extrusion composite deformation capacity and the interface composite strength, so that the key technology that the single particle reinforced aluminum-based composite material is low in plasticity and toughness and difficult to extrude and manufacture pipes is solved. The composite material not only has the excellent comprehensive properties of small specific gravity, high specific strength, high specific rigidity, large elastic modulus, good oxidation resistance and wear resistance and the like of the particle reinforced aluminum-based composite material, but also has the properties of high strength, good fracture toughness, excellent processing performance and the like of aluminum alloy; meanwhile, the powder metallurgy and perforation hot extrusion composite process method also has the characteristics of simple production process, high efficiency, low cost and the like. The pipe made of the hybrid aluminum-based composite material has extremely wide application and development prospect when being used as a gun barrel, a steam cylinder, an oil cylinder and the like in the technical fields of weaponry, automobiles, engineering machinery and the like.
Drawings
Fig. 1 is a schematic view of the hybrid aluminum-based composite pipe prepared in example 1, wherein 1 is an outer layer and 2 is an inner layer.
Detailed Description
The present invention is further illustrated by the following examples.
Example 1
Firstly, preparing 8009 aluminum alloy powder by adopting an N2 atomization method, and then mechanically mixing the 8009 aluminum alloy powder with SiC particles with the average diameter of 10 mu m to prepare 8009Al + 15% SiCp aluminum-based particle reinforced composite material powder; selecting a 6061 aluminum alloy semi-continuous ingot with the diameter of phi 180 multiplied by 500mm, and machining the ingot into a tube blank with the diameter of phi 170 multiplied by 32mm after uniform solution treatment; filling 8009Al + 15% SiCp aluminum-based particle reinforced composite powder into a 6061 aluminum alloy pipe blank, compacting by adopting a vibration compaction method, sealing two ends of the 6061 aluminum alloy pipe blank by adopting a 6061 aluminum alloy hot rolling plate with the thickness of 20mm in a welding mode, installing a pure aluminum pipe with the diameter of phi 8 multiplied by 1mm at one end of the 6061 aluminum alloy hot rolling plate, vacuumizing for 30 minutes, and sealing a pipe opening to prepare a phi 170 multiplied by 540mm mixed aluminum-based composite material extrusion ingot blank; heating the extruded ingot blank to 460 ℃ in a box-type resistance furnace, preserving heat for 4 hours, punching and extruding a 6061Al/8009Al + 15% SiCp pipe with the specification of phi 75 multiplied by 10mm on an 1800T double-acting extruder, wherein the speed of an extrusion rod is 60 mm/min, and the extrusion ratio is 11.3. After air cooling, the pipe is subjected to cold water quenching and aging heat treatment at 175 ℃/8 hours after the pipe is kept at 520 ℃ for 1 hour.
The inner and outer layers of the tube were sampled in the extrusion direction by wire cutting to test the tensile properties, and the results are shown in Table 1.
Example 2
Firstly, 8009 aluminum alloy powder is prepared by adopting an N2 atomization method, and then the powder is mixed with Al with the average diameter of 10 mu m2O3Mechanically mixing the granules to prepare 8009Al + 15% Al2O3Aluminum-based particle-reinforced composite powder; selecting a 6061 aluminum alloy semi-continuous ingot with the diameter of phi 180 multiplied by 500mm, and machining the ingot into a tube blank with the diameter of phi 170 multiplied by 32mm after uniform solution treatment; 8009Al + 15% Al2O3Aluminum-based particle reinforced composite material powder is filled into a 6061 aluminum alloy pipe blank, after the aluminum-based particle reinforced composite material powder is compacted by a vibration compaction method, 6061 aluminum alloy hot rolled plates with the thickness of 20mm are adopted at two ends to be sealed in a welding mode, wherein a pure aluminum pipe with the diameter of phi 8 multiplied by 1mm is arranged at one end, and the pipe opening is sealed after the pure aluminum pipe is vacuumized for 30 minutes to prepare a phi 170 multiplied by 540mm mixed aluminum-based composite material extrusion ingot blank; heating the extruded ingot blank in a box-type resistance furnace toAfter keeping the temperature at 460 ℃ for 4 hours, punching and extruding the mixture on a 1800T double-action extruder to form 6061Al/8009Al + 15% Al with the specification of phi 75 multiplied by 10mm2O3Mix the tubes, extrude at a rod speed of 48 mm/min and an extrusion ratio of 11.3. After air cooling, the pipe is subjected to cold water quenching and aging heat treatment at 175 ℃/8 hours after the pipe is kept at 520 ℃ for 1 hour.
The inner and outer layers of the tube were sampled in the extrusion direction by wire cutting to test the tensile properties, and the results are shown in Table 1.
Example 3
Firstly, 7075 aluminum alloy powder is prepared by adopting an N2 atomization method, and then the aluminum alloy powder is mixed with Al with the average diameter of 10 mu m2O3Mechanically mixing the granules to prepare 7075Al + 15% Al2O3Aluminum-based particle-reinforced composite powder; selecting 7075 aluminum alloy semi-continuous cast ingots with the diameter of phi 180 multiplied by 500mm, and machining the ingots into tube blanks with the diameter of phi 170 multiplied by 32mm after uniform solution treatment; 7075Al + 15% Al2O3Aluminum-based particle reinforced composite material powder is filled into a 7075 aluminum alloy pipe blank, after being compacted by a vibration compaction method, 1050 aluminum alloy hot rolled plates with the thickness of 20mm are adopted at two ends to be sealed in a welding mode, wherein a pure aluminum pipe with the diameter of phi 8 multiplied by 1mm is arranged at one end, and the pipe opening is sealed after being vacuumized for 30 minutes to prepare a phi 170 multiplied by 540mm mixed aluminum-based composite material extrusion ingot blank; heating the extruded ingot blank to 430 ℃ in a box-type resistance furnace, preserving heat for 4 hours, punching and extruding on a 1800T double-action extruder to form 7075Al/7075Al + 15% Al with the specification of phi 75 multiplied by 10mm2O3Mix the tubes, extrude at a rod speed of 36 mm/min and an extrusion ratio of 11.3. After air cooling, the pipe is subjected to cold water quenching and aging heat treatment at the temperature of 465 ℃ for 1 hour and at the temperature of 120 ℃/24 hours.
The inner and outer layers of the tube were sampled in the extrusion direction by wire cutting to test the tensile properties, and the results are shown in Table 1.
Example 4
Firstly, preparing 7075 aluminum alloy powder by adopting an N2 atomization method, and then mechanically mixing the 7075 aluminum alloy powder with SiCp particles with the average diameter of 10 mu m to prepare 7075Al + 15% SiCp aluminum-based particle reinforced composite material powder; selecting 7075 aluminum alloy semi-continuous cast ingots with the diameter of phi 180 multiplied by 500mm, and machining the ingots into tube blanks with the diameter of phi 170 multiplied by 32mm after uniform solution treatment; filling 7075Al + 15% SiCp aluminum-based particle reinforced composite material powder into a 7075 aluminum alloy pipe blank, compacting by adopting a vibration compaction method, sealing two ends of the 7075Al + 15% SiCp aluminum-based particle reinforced composite material powder by adopting 1050 aluminum alloy hot-rolled plates with the thickness of 20mm in a welding mode, installing a pure aluminum pipe with the diameter of phi 8 multiplied by 1mm at one end of the 1050 aluminum-alloy hot-rolled plates, vacuumizing for 30 minutes, and sealing a pipe opening to prepare a phi 170 multiplied by 540mm mixed aluminum-based composite material extrusion ingot blank; heating the extruded ingot blank to 430 ℃ in a box-type resistance furnace, preserving heat for 4 hours, punching and extruding on an 1800T double-action extruder to obtain a 7075Al/7075Al + 15% SiCp mixed pipe with the specification of 75 multiplied by 10mm, wherein the speed of an extrusion rod is 42 mm/min, and the extrusion ratio is 11.3. After air cooling, the pipe is subjected to cold water quenching and aging heat treatment at the temperature of 465 ℃ for 1 hour and at the temperature of 120 ℃/24 hours.
The pipe was sampled in the extrusion direction by wire cutting to test the tensile properties, and the results are shown in Table 1.
Comparative example 1
The corresponding particulate reinforced aluminum matrix composite was taken from the inner layer of example 1 for tensile testing for comparison with the hybrid aluminum matrix composite pipe. .
Comparative example 2
The corresponding particulate reinforced aluminum matrix composite was taken from the inner layer of example 2 for tensile testing for comparison with the hybrid aluminum matrix composite pipe. .
Comparative example 3
The corresponding particulate reinforced aluminum matrix composite was taken from the inner layer of example 3 for tensile testing for comparison with the hybrid aluminum matrix composite pipe.
Comparative example 4
The corresponding particulate reinforced aluminum matrix composite was taken from the inner layer of example 4 for tensile testing for comparison with the hybrid aluminum matrix composite pipe.
Comparative example 5
6061 aluminum alloy pipe was used.
Comparative example 6
7075 aluminum alloy pipe was used.
For comparison, the matrix aluminum alloy and the particle-reinforced aluminum matrix composite were directly and respectively removed from the hybrid aluminum matrix composite pipe for tensile and tensile property test, and the results are shown in table 1.
TABLE 1 detection results of tensile properties of pipes made of hybrid aluminum-based composite materials
Therefore, the tensile property of the hybrid aluminum-based composite pipe is between the strength of the inner aluminum-based composite and the strength of the outer aluminum alloy, but the most important property is that the inner layer has the characteristic of particle reinforced aluminum-based composite, so that the comprehensive properties of the hybrid aluminum-based composite pipe, such as strength, toughness, inner surface wear resistance and the like, are improved.
Claims (14)
1. A method for preparing a hybrid aluminum matrix composite pipe comprises the following steps:
loading the particle reinforced aluminum-based composite material into an aluminum alloy pipe blank, compacting, sealing two ends of the aluminum alloy pipe blank, installing a pipeline for vacuumizing at one end of the aluminum alloy pipe blank, vacuumizing the aluminum alloy pipe blank, sealing the pipe orifice of the pipeline to prepare a mixed aluminum-based composite material extrusion ingot blank, then heating and insulating the mixed aluminum-based composite material extrusion ingot blank, punching the mixed aluminum-based composite material extrusion ingot blank on a double-acting extruder to extrude the mixed aluminum-based composite material extrusion ingot blank into a pipe, and performing heating and insulating, quenching and aging heat treatment on the pipe after air cooling; wherein the heating temperature of the mixed aluminum matrix composite material extrusion ingot blank is 400-550 ℃, and the heat preservation time is 3-5 hours; the extrusion rod speed of the double-action extruder is 30-100 mm/min, and the extrusion ratio is 10-30.
2. The method of claim 1, wherein the particle-reinforced aluminum-based composite material is SiC particles and/or Al2O3Granules, mixtures with aluminium alloy powders, aluminiumThe alloy powder is Al-Cu, Al-Si, Al-Mg-Si, Al-Zn-Mg-Cu or Al-Fe-V-Si series aluminum alloy powder.
3. The method according to claim 2, wherein the aluminum alloy powder is any one of Al-Cu, Al-Si, Al-Mg-Si, Al-Zn-Mg-Cu, and Al-Fe-V-Si series wrought aluminum alloy powders.
4. The method of claim 2, wherein the SiC particles or Al2O3The particles have an average diameter of 8-20 μm, SiC particles and/or Al2O3The volume fraction of the particles in the particle-reinforced aluminum matrix composite is 10-30%.
5. The method of claim 4, wherein the SiC particles or Al2O3Particles having an average diameter of 10-15 μm, SiC particles and/or Al2O3The volume fraction of the particles in the particle-reinforced aluminum matrix composite material is 12-16%.
6. The method according to claim 1, wherein both ends of the aluminum alloy pipe blank are welded and sealed using an aluminum alloy hot-rolled plate.
7. A method according to claim 1 or 2, wherein the compaction of the particulate reinforced aluminium matrix composite material in the aluminium alloy tube billet is selected from cold compaction and vibro compaction, the relative density after compaction being greater than 70%.
8. The method as claimed in claim 1, wherein the heating temperature of the hybrid aluminum matrix composite extruded ingot is 420-500 ℃.
9. The method of claim 1 wherein the double action extruder has a ram speed of 50 to 80 mm/min and an extrusion ratio of 15 to 25.
10. The method as claimed in claim 1, wherein the heat-insulating temperature in the heat-insulating process of the tube after air cooling is 350-500 ℃, the heat-insulating time is 0.5-3 hours, and/or
The aging heat treatment temperature is 100-250 ℃, and the time is 5-30 hours.
11. The method as claimed in claim 10, wherein the heat-preserving temperature in the heat-preserving process of the tube after air cooling is 400-480 ℃, and the heat-preserving time is 1-2 hours; and/or
The aging heat treatment temperature is 120-200 ℃, and the time is 10-25 hours.
12. The hybrid aluminum matrix composite pipe prepared by the method according to any one of claims 1 to 11, wherein the inner layer is a particle-reinforced aluminum matrix composite, the outer layer is an aluminum alloy material, and the thickness ratio of the inner layer to the outer layer is 10-50%.
13. The hybrid aluminum matrix composite pipe according to claim 12, wherein the inner particle reinforced aluminum matrix composite is SiC particles and/or Al2O3The particles are mixed with any one of Al-Cu, Al-Si, Al-Mg-Si, Al-Zn-Mg-Cu and Al-Fe-V-Si series aluminum alloy powder, and the outer aluminum alloy material is any one of Al-Cu, Al-Mg-Si and Al-Zn-Mg-Cu series aluminum alloy cast ingots.
14. The hybrid aluminum matrix composite pipe according to claim 13, wherein the inner particle reinforced aluminum matrix composite is SiC particles and/or Al2O3The particles are mixed with any one of Al-Cu, Al-Si, Al-Mg-Si, Al-Zn-Mg-Cu and Al-Fe-V-Si series wrought aluminum alloy powder, and the outer layer aluminum alloy material is any one of Al-Cu, Al-Mg-Si and Al-Zn-Mg-Cu series wrought aluminum alloy cast ingots.
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| CN111299595A (en) * | 2020-04-22 | 2020-06-19 | 西安航空制动科技有限公司 | Preparation method of aluminum-based composite material product |
| CN113738774A (en) * | 2021-09-10 | 2021-12-03 | 中车大同电力机车有限公司 | Transmission hollow shaft, bogie coupling and manufacturing method of transmission hollow shaft |
| CN114875268A (en) * | 2022-05-27 | 2022-08-09 | 安徽佳晟金属科技有限公司 | Aluminum alloy bar and production process thereof |
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