CN113953642A - Preparation method of titanium/aluminum/magnesium composite board - Google Patents
Preparation method of titanium/aluminum/magnesium composite board Download PDFInfo
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- CN113953642A CN113953642A CN202111417451.1A CN202111417451A CN113953642A CN 113953642 A CN113953642 A CN 113953642A CN 202111417451 A CN202111417451 A CN 202111417451A CN 113953642 A CN113953642 A CN 113953642A
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- Prior art keywords
- titanium
- aluminum
- alloy plate
- magnesium
- explosive
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 50
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 239000002131 composite material Substances 0.000 title claims abstract description 49
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims abstract description 43
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 229910052749 magnesium Inorganic materials 0.000 title claims abstract description 43
- 239000011777 magnesium Substances 0.000 title claims abstract description 43
- 239000010936 titanium Substances 0.000 title claims abstract description 43
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title abstract description 12
- 239000002360 explosive Substances 0.000 claims abstract description 58
- 229910001069 Ti alloy Inorganic materials 0.000 claims abstract description 47
- 229910000861 Mg alloy Inorganic materials 0.000 claims abstract description 45
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 33
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000003466 welding Methods 0.000 claims abstract description 20
- 239000002985 plastic film Substances 0.000 claims abstract description 13
- 229920006255 plastic film Polymers 0.000 claims abstract description 13
- 239000000758 substrate Substances 0.000 claims abstract description 8
- 239000000839 emulsion Substances 0.000 claims description 19
- 238000005474 detonation Methods 0.000 claims description 8
- 239000002023 wood Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000000977 initiatory effect Effects 0.000 claims 1
- 239000011229 interlayer Substances 0.000 abstract description 5
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000005498 polishing Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 5
- 238000004880 explosion Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- SXSVTGQIXJXKJR-UHFFFAOYSA-N [Mg].[Ti] Chemical compound [Mg].[Ti] SXSVTGQIXJXKJR-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- UQZIWOQVLUASCR-UHFFFAOYSA-N alumane;titanium Chemical compound [AlH3].[Ti] UQZIWOQVLUASCR-UHFFFAOYSA-N 0.000 description 1
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- -1 titanium-aluminum-magnesium Chemical compound 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/06—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of high energy impulses, e.g. magnetic energy
- B23K20/08—Explosive welding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention discloses a preparation method of a titanium/aluminum/magnesium composite board, which comprises the steps of taking a titanium alloy plate and an aluminum alloy plate as flying plates, taking the magnesium alloy plate as a substrate, polishing the aluminum alloy plate and the titanium alloy plate, sequentially stacking the aluminum alloy plate and the titanium alloy plate on the polished magnesium alloy plate, placing an aluminum support between the magnesium alloy plate, the aluminum alloy plate and the titanium alloy plate, coating a plastic film on the surface of the titanium alloy plate opposite to the substrate, laying an explosive on the plastic film, placing a detonator in the explosive, igniting the detonator to detonate the explosive, and performing explosive welding to obtain the titanium/aluminum/magnesium composite board. The titanium/aluminum/magnesium composite board is prepared by adopting an explosive welding method, so that the interlayer interfaces of the boards form good combination, and the titanium/aluminum/magnesium composite board is prepared in a very short time, so that the combination interface of the magnesium alloy board is controlled not to easily form oxides, and the mechanical property of the titanium/aluminum/magnesium composite board is improved.
Description
Technical Field
The invention belongs to the technical field of explosive welding, and particularly relates to a preparation method of a titanium/aluminum/magnesium composite board.
Background
The explosion welding method is commonly used when the composite board is prepared by the metal board with larger performance difference, and the impact force generated when the explosive explodes acts on the flying board in a very short time, so that the flying board and the base board generate high-speed and oblique collision to form the multilayer composite of the board. Plastic flow and high-speed jet flow are generated at the explosive collision interface due to high pressure and high temperature, so that pollutants on the surface of an interface oxide film and a plate are washed away, and favorable conditions are provided for forming a good interlayer welding effect.
The magnesium alloy has the characteristics of light weight, high strength and the like, but the corrosion resistance of the magnesium alloy is poor, so that the application range of the magnesium alloy is influenced. Patent CN104014589A provides a method for preparing a composite plate from three layers of titanium alloy, aluminum alloy and magnesium alloy, the method fixes each layer of plate by rivets, then keeps the temperature in an electric furnace at 400 ℃ for different time, and then carries out hot rolling, finally obtains the titanium/aluminum/magnesium composite plate.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method for preparing a titanium/aluminum/magnesium composite board, aiming at the defects of the prior art. The method adopts an explosive welding method to prepare the titanium/aluminum/magnesium composite board, so that the interlayer interfaces of the boards form good combination, and the titanium/aluminum/magnesium composite board is prepared in a very short time, thereby controlling the combination interface of the magnesium alloy boards not to easily form oxides and improving the mechanical property of the titanium/aluminum/magnesium composite board.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a method for preparing a titanium/aluminum/magnesium composite board is characterized in that a titanium alloy plate and an aluminum alloy plate are used as flying plates, the magnesium alloy plate is used as a substrate, the aluminum alloy plate and the titanium alloy plate are sequentially stacked on the magnesium alloy plate after being polished, an aluminum support is placed between the magnesium alloy plate, the aluminum alloy plate and the titanium alloy plate, then a plastic film is coated on the surface of the titanium alloy plate back to the substrate, an explosive is laid on the plastic film, a detonator is placed in the explosive, and then the detonator is ignited to detonate the explosive to perform explosive welding, so that the titanium/aluminum/magnesium composite board is obtained; the laying thickness of the explosive is 10-35 mm, and the detonation velocity of the explosive is 1800-2800 m/s.
Aiming at the defects that the magnesium alloy plates are not corrosion-resistant and are very easy to oxidize, the invention polishes each plate to remove surface oil stains and oxidation films, leaks the original surface to be bare and clean, prevents the bonding strength from being influenced by impurities such as oil stains and the like during subsequent explosive cladding, then stacking the magnesium alloy plates, the aluminum alloy plates and the titanium alloy plates in sequence, placing an aluminum support between the adjacent plates to keep the distance between the adjacent plates, thereby ensuring that the titanium alloy plate has certain acceleration distance in the explosive welding process and has high-speed and oblique collision with the magnesium alloy plate substrate, good combination is formed at the interlayer interface of each plate, the titanium/aluminum/magnesium composite plate is prepared in a very short time, thereby controlling the bonding interface of the magnesium alloy plate not to easily form oxides and improving the mechanical property of the titanium/aluminum/magnesium composite plate; meanwhile, the plastic film is coated on the surface of the titanium alloy plate back to the substrate, so that the surface of the titanium alloy plate is prevented from being ablated by explosive welding of explosives laid on the surface of the titanium alloy plate, and the quality of the titanium/aluminum/magnesium composite plate is further improved.
The preparation method of the titanium/aluminum/magnesium composite board is characterized in that the thickness of the titanium alloy board is 1-5 mm, and the thickness of the magnesium alloy board is not less than 4 mm. According to the invention, the thickness of the titanium alloy plate and the thickness of the magnesium alloy plate are controlled, so that the phenomenon that the explosive quantity required by explosive welding is increased due to overlarge thickness of the titanium alloy plate and the magnesium alloy plate is crushed due to overlarge impact force generated by explosive welding is avoided, the smooth proceeding of explosive welding is ensured, the bonding strength of the base plate and the flying plate is improved, and the quality of the titanium/aluminum/magnesium composite plate is further improved.
The preparation method of the titanium/aluminum/magnesium composite board is characterized in that the end part of the titanium alloy board is provided with an explosion point.
The preparation method of the titanium/aluminum/magnesium composite board is characterized in that the length and the width of the aluminum alloy board and the magnesium alloy board are the same, and the length and the width of the titanium alloy board are 40mm larger than those of the aluminum alloy board and the magnesium alloy board. According to the invention, by limiting the size of each plate, the boundary effect in the explosive welding process is reduced, and good combination is formed between the plates.
The preparation method of the titanium/aluminum/magnesium composite board is characterized in that the explosive is a powdery emulsion explosive, and the powdery emulsion explosive contains 10-15% of sawdust and 20-30% of gravel by mass. According to the invention, the components of the explosive are limited to regulate and control the explosion velocity of the explosive, so that the collision effect of the titanium alloy plate on the magnesium alloy plate in the explosion welding process is controlled, and the plates are well combined.
Compared with the prior art, the invention has the following advantages:
1. the titanium/aluminum/magnesium composite board is prepared by adopting an explosive welding method, so that the interlayer interfaces of the boards form good combination, and the titanium/aluminum/magnesium composite board is prepared in a very short time, so that the combination interface of the magnesium alloy board is controlled not to easily form oxides, and the mechanical property of the titanium/aluminum/magnesium composite board is improved.
2. Compared with the rolling method in the prior art, the preparation method has the advantages of shorter production period, simple process and easy realization.
3. The shear strength of the titanium/aluminum/magnesium composite board prepared by the invention is improved to more than 100MPa, and the composite metal compound layer is formed among the boards, so that the titanium/aluminum/magnesium composite board has better bonding strength, the bonding strength reaches more than 60MPa, and no crack or hole appears at the interface.
4. According to the invention, the titanium-aluminum-magnesium three-layer composite board is prepared by adopting an explosive welding method, the aluminum alloy board is added as a transition layer, the compound generated at the titanium-magnesium interface is eliminated, a sandwich layered structure is formed, the titanium-aluminum interface and the aluminum-magnesium interface both form a regular wavy structure, and the interface bonding strength is improved by about 70% compared with the titanium-magnesium composite board.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
FIG. 1 is a microstructure of an interface region of a titanium/aluminum/magnesium composite plate prepared in example 1 of the present invention.
Detailed Description
Example 1
The preparation method of this example uses a titanium alloy plate of 2mm × 340mm × 540mm (thickness × width × length), an aluminum alloy plate of 1mm × 300mm × 500mm (thickness × width × length) as a flight, a magnesium alloy plate of 6mm × 300mm × 500mm (thickness × width × length) as a base plate, the surface of each plate is polished to remove an oxide film, the magnesium alloy plate is placed on a flat turret to be completely attached, the aluminum alloy plate and the titanium alloy plate are sequentially stacked on the magnesium alloy plate, an aluminum support with a height of 4mm is placed between the magnesium alloy plate, the aluminum alloy plate and an adjacent plate in the titanium alloy plate, then the surface of the titanium alloy plate facing away from the base plate is coated with a plastic film, a powdery emulsion explosive containing 10% by mass of wood chips and 20% by mass of gravel is laid on the plastic film, and the thickness of the powdery emulsion explosive is 20mm, and placing a detonator in the powdery emulsion explosive at the end part of the titanium alloy plate to set a detonation point, igniting the detonator to detonate the powdery emulsion explosive to perform explosive welding, wherein the detonation velocity of the powdery emulsion explosive is 2400m/s, and obtaining the titanium/aluminum/magnesium composite plate.
Through detection, the interface bonding strength between the titanium alloy plate and the aluminum alloy plate in the titanium/aluminum/magnesium composite plate prepared in the embodiment is 139MPa, and the interface bonding strength between the aluminum alloy plate and the magnesium alloy plate is 121 MPa.
Fig. 1 is a microstructure diagram of an interface region of the titanium/aluminum/magnesium composite board prepared in this embodiment, and as can be seen from fig. 1, the titanium alloy plate, the aluminum alloy plate, and the magnesium alloy plate in the titanium/aluminum/magnesium composite board are well bonded, and no crack or hole is formed at an interface between the plates.
Example 2
The preparation method of this example uses a titanium alloy plate of 1mm × 340mm × 540mm (thickness × width × length), an aluminum alloy plate of 1mm × 300mm × 500mm as a flying plate, a magnesium alloy plate of 10mm × 300mm × 500mm (thickness × width × length) as a base plate, the surface of each plate is polished to remove an oxide film, the magnesium alloy plate is placed on a flat gun platform and completely attached, the aluminum alloy plate and the titanium alloy plate are sequentially stacked on the magnesium alloy plate, an aluminum support with a height of 2mm is placed between the magnesium alloy plate, the aluminum alloy plate and the adjacent plate in the titanium alloy plate, then the surface of the titanium alloy plate facing away from the base plate is coated with a plastic film, a powdery emulsion explosive containing 10% by mass of wood chips and 20% by mass of gravel is laid on the plastic film, and the laying thickness of the powdery emulsion explosive is 35mm, and placing a detonator in the powdery emulsion explosive at the end part of the titanium alloy plate to set a detonation point, igniting the detonator to detonate the powdery emulsion explosive to perform explosive welding, wherein the detonation velocity of the powdery emulsion explosive is 2800m/s, and thus obtaining the titanium/aluminum/magnesium composite plate.
Through detection, the interface bonding strength between the titanium alloy plate and the aluminum alloy plate in the titanium/aluminum/magnesium composite plate prepared in the embodiment is 110MPa, and the interface bonding strength between the aluminum alloy plate and the magnesium alloy plate is 97 MPa.
Example 3
The preparation method of this example uses a titanium alloy plate of 5mm × 340mm × 540mm (thickness × width × length), an aluminum alloy plate of 1mm × 300mm × 500mm (thickness × width × length) as a flight, a magnesium alloy plate of 8mm × 300mm × 500mm (thickness × width × length) as a base plate, the surface of each plate is polished to remove an oxide film, the magnesium alloy plate is placed on a flat turret to be completely attached, the aluminum alloy plate and the titanium alloy plate are sequentially stacked on the magnesium alloy plate, an aluminum support with a height of 4mm is placed between the magnesium alloy plate, the aluminum alloy plate and an adjacent plate in the titanium alloy plate, then the surface of the titanium alloy plate facing away from the base plate is coated with a plastic film, a powdery emulsion explosive containing 10% by mass of wood chips and 20% of gravel is laid on the plastic film, and the laying thickness of the powdery emulsion explosive is 10mm, and placing a detonator in the powdery emulsion explosive at the end part of the titanium alloy plate to set a detonation point, igniting the detonator to detonate the powdery emulsion explosive to perform explosive welding, wherein the detonation velocity of the powdery emulsion explosive is 2400m/s, and obtaining the titanium/aluminum/magnesium composite plate.
Through detection, the interface bonding strength between the titanium alloy plate and the aluminum alloy plate in the titanium/aluminum/magnesium composite plate prepared by the embodiment is 121MPa, and the interface bonding strength between the aluminum alloy plate and the magnesium alloy plate is 107 MPa.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Any simple modification, change and equivalent changes of the above embodiments according to the technical essence of the invention are still within the protection scope of the technical solution of the invention.
Claims (5)
1. A method for preparing a titanium/aluminum/magnesium composite board is characterized in that a titanium alloy plate and an aluminum alloy plate are used as flying plates, the magnesium alloy plate is used as a substrate, the aluminum alloy plate and the titanium alloy plate are sequentially stacked on the magnesium alloy plate after being polished, an aluminum support is placed between the magnesium alloy plate, the aluminum alloy plate and the titanium alloy plate, then a plastic film is coated on the surface of the titanium alloy plate back to the substrate, an explosive is laid on the plastic film, a detonator is placed in the explosive, and then the detonator is ignited to detonate the explosive to perform explosive welding, so that the titanium/aluminum/magnesium composite board is obtained; the laying thickness of the explosive is 10-35 mm, and the detonation velocity of the explosive is 1800-2800 m/s.
2. The method for preparing the titanium/aluminum/magnesium composite board according to claim 1, wherein the thickness of the titanium alloy board is 1mm to 5mm, and the thickness of the magnesium alloy board is not less than 4 mm.
3. The method for manufacturing a titanium/aluminum/magnesium composite board according to claim 1, wherein an end of the titanium alloy sheet is provided with an initiation point.
4. The method for manufacturing a titanium/aluminum/magnesium composite board according to claim 1, wherein the length and width of the aluminum alloy board and the magnesium alloy board are the same, and the length and width of the titanium alloy board are 40mm larger than those of the aluminum alloy board and the magnesium alloy board.
5. The method for preparing the titanium/aluminum/magnesium composite board according to claim 1, wherein the explosive is a powdery emulsion explosive, and the powdery emulsion explosive contains 10-15% of wood chips and 20-30% of gravel by mass.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111417451.1A CN113953642A (en) | 2021-11-26 | 2021-11-26 | Preparation method of titanium/aluminum/magnesium composite board |
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| CN202111417451.1A CN113953642A (en) | 2021-11-26 | 2021-11-26 | Preparation method of titanium/aluminum/magnesium composite board |
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| CN113953642A true CN113953642A (en) | 2022-01-21 |
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| CN202111417451.1A Pending CN113953642A (en) | 2021-11-26 | 2021-11-26 | Preparation method of titanium/aluminum/magnesium composite board |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115319264A (en) * | 2022-08-22 | 2022-11-11 | 北京理工大学 | Preparation method of strong/plastic/tough laminated composite board of titanium alloy |
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