CN105436203A - Magnesium/aluminum/titanium composite board cladding-rolling method - Google Patents
Magnesium/aluminum/titanium composite board cladding-rolling method Download PDFInfo
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- CN105436203A CN105436203A CN201510927432.1A CN201510927432A CN105436203A CN 105436203 A CN105436203 A CN 105436203A CN 201510927432 A CN201510927432 A CN 201510927432A CN 105436203 A CN105436203 A CN 105436203A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0035—Forging or pressing devices as units
- B21B15/005—Lubricating, cooling or heating means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
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Abstract
The invention discloses a magnesium/aluminum/titanium composite board cladding-rolling method. According to the method, a cladding layer is used for the composite board during rolling, and through shape optimization of upper and lower cover plates of the cladding layer and design of rolling process parameters, the cladding layer and the cladded composite board can achieve coordinated deformation during rolling, so that the deformation behavior of the cladded composite board can be effectively restrained, the composite interface of the composite board is straight, and the bonding strength of the composite board is improved; the cladding layer can effectively reduce invasion of impurities and harmful gas to the composite interface, so that the bonding strength of the composite board can be further improved; and meanwhile, the use of the cladding layer can slow down loss of heat, so that metal is easy to deform during rolling.
Description
Technical field
The present invention is a kind of milling method of magnesium/aluminium/titanium composite panel.
Background technology
Magnesium/aluminium/titanium composite panel is mainly used in the outer buffer board in spacecraft outer protective structure (Whipple), substitutes conventional monolayers aluminum alloy materials, available protecting spacecraft, extends spacecraft service life.Magnesium alloy density is little, and electromagnetic protection is good; Aluminium alloy plasticity is excellent; Titanium alloy intensity is high.Magnesium/aluminium/titanium composite panel combines the good characteristic of three kinds of alloys, has good anti-high-speed impact property, when being subject to high speed impact, and sheet material fragmentation and atomization, apparatus with shock absorbing, available protecting endothecium structure.
The preparation method of current existing layered metal composite board has: roll-bonding method, Explosion composite method, diffusion welding (DW) connection, the multiple methods such as reverse solidification method.The composite plate bond strength that Explosion composite method is produced is higher, but Explosion composite method production technology is dangerous, is unfavorable for the realization of automation.The method production equipments such as diffusion welding (DW) connection, reverse solidification method are expensive and complicated, are unfavorable for large-scale production.Relative to additive method, roll-bonding method constant product quality, equipment is simple, is easy to realization and the large-scale production of automation.In the tradition operation of rolling, metal is subject to the crunch of milling train applying and plastic deformation occurs, metal is difficult to be subject to effective constraint in the distortion of rolling direction and width, and therefore can cause that sheet material deformity, subregion composite effect are undesirable even can not the result of successful compound; In addition, existing Rolling compund method sheet metal good for pretreatment is directly put in heating furnace be heated to certain temperature, in heating and following process process, have impurity or pernicious gas unavoidably and enter between good to be composite of pretreatment, this also can reduce sheet material bond strength.
Summary of the invention
For the deficiency that prior art exists, the technical problem to be solved in the present invention is to provide a kind of milling method of magnesium/aluminium/titanium composite panel, this milling method can operative constraint metal in rolling deformation process along the deformational behavior of rolling direction and width; Prevent impurity in preheating and the operation of rolling from invading between to be composite and avoiding heat loss.
To achieve these goals, the present invention realizes by the following technical solutions: a kind of magnesium/aluminium/titanium composite panel sandwich rolling method, comprises the following steps:
S1) sheet material annealing: using as the magnesium alloy plate of composite board material, aluminium alloy plate and titanium alloy sheet, and carry out heating, be incubated and cooling naturally as the upper and lower cover plate of clad and frame;
Wherein: magnesium alloy plate is of a size of, length 180-220mm, width 120-160mm, thickness (highly) 0.6-1.8mm; Described aluminum alloy plate materials is of a size of, length 180-220mm, width 120-160mm, thickness 0.8-2.2mm; Described titanium alloy plate is of a size of, length 180-220mm, width 120-160mm, thickness 0.2-0.8mm; Described upper and lower cover plates is of a size of, and length, width exceed above-mentioned composite board 10-30mm, thickness 0.6-1.6mm; Frame length, width and upper and lower cover plates consistent size, open hole to hold composite board material at middle part, thickness is selected according to the thickness being wrapped by composite plate.
S2) surface treatment: polished in magnesium alloy plate, face to be composite between aluminium alloy plate and titanium alloy sheet;
S3) interleaving agent is smeared: the contact surface between upper and lower cover plate and magnesium alloy plate, titanium alloy sheet smears interleaving agent;
S4) coated: magnesium alloy plate, aluminium alloy plate, titanium alloy sheet are put into frame successively, then frame and upper and lower cover plate are welded into an entirety;
S5) preheating before rolling: coated good sheet material is put into heating furnace and heats;
S6) Rolling compund: utilize mill milling to be shaped;
S7) roll after annealing: strip off clad, magnesium/aluminium/titanium composite panel that taking-up is wrapped by also carries out annealing in process to it.
Preferably, described step S1) in, magnesium alloy plate heating-up temperature is 300-450 DEG C, and temperature retention time is 10-60 minute; Aluminium alloy plate heating-up temperature is 400-600 DEG C, and temperature retention time is 60-120 minute; Titanium alloy sheet heating-up temperature is 300-550 DEG C, and temperature retention time is 60-120 minute; Coating layer material heating-up temperature is 400-800 DEG C, temperature retention time 60-240 minute.
Preferably, described step S5) in, before rolling, preheat temperature is 350-500 DEG C, and temperature retention time is 10-30 minute.
Preferably, described step S6) in, mill speed is not less than 0.2m/s, and roll reduction is not less than 30%.
Preferably, described step S7) in, rolling after annealing temperature is 200-450 DEG C, and annealing time is 30-180 minute.
Preferably, described step S3) in, choose one in polytetrafluoroethylene (PTFE), graphite powder, plain oil and rubber as interleaving agent.
Preferably, described magnesium alloy plate is selected from the one in AZ31, AZ61 and AZ80, described aluminium alloy plate is selected from the one in AA1100, AA5083, AA6061 and AA7075, described titanium alloy sheet is selected from the one in TA1, TA2, TC4, TC6 and TC10, and described clad is selected from the one in 20 steel, 45 steel, AA1100 aluminium alloy and AA6061 aluminium alloy.
Preferably, described step S2) in, choose steel brush, sand paper or emery wheel and polish, with the surface after alcohol or acetone rinsing polishing, natural air drying or fan dry up.
Preferably, described step S4) in welding procedure be non-melt pole Heliarc welding or metal inert gas arc welding.
The present invention carries out coated rear rolling and sandwich rolling by using clad to composite board material, can the deformational behavior of composite plate that is wrapped by of operative constraint, the composite plate cooperative transformation in the operation of rolling making clad and be wrapped by, make composite plate compound interface straight, improve the bond strength of composite plate.Clad effectively can reduce impurity and pernicious gas intrusion compound interface simultaneously, the bond strength of further raising composite plate, simultaneously, the use of clad can also be slowed down scattering and disappearing fast of heat, metal is more easily out of shape, the tensile strength of the composite plate obtained by this method is up to 350-450MPa, and percentage elongation can reach 12-25% simultaneously.
As the further improvement of technique scheme, in step S5) seamed edge of the front seamed edge to upper cover plate upper surface and lower cover lower surface carries out chamfering.The beneficial effect of such setting is: by upper and lower cover plates chamfered, and the composite plate region deformation amount be wrapped by is comparatively large, is beneficial to composite plate compound; Clad surrounding deflection is less, prevents weld crack cracking in the operation of rolling; And chamfered part ensure that thicker cladding plate is nipped smoothly in the operation of rolling.
Accompanying drawing explanation
Fig. 1 is the process chart of magnesium/aluminium of the present invention/titanium composite panel sandwich rolling method;
Fig. 2 is the structural representation to being welded into after overall sheet material chamfered;
Fig. 3 is the Mechanics Performance Testing figure of magnesium/aluminium/titanium composite panel that embodiment 1 obtains;
Fig. 4 is the Mechanics Performance Testing figure of magnesium/aluminium/titanium composite panel that embodiment 2 obtains;
Fig. 5 be by traditional milling method and magnesium/aluminium/titanium composite panel of being obtained by the embodiment of the present invention 2 under an optical microscope composite surface pattern contrast.
Detailed description of the invention
Embodiment 1
The milling method of the present embodiment comprises the steps:
S1) sheet material annealing
First, chosen material:
Composite board material: magnesium alloy AZ31, specification (long × wide × high, lower same) 200 × 160 × 1.1mm; Aluminium alloy AA6061, specification 200 × 160 × 0.9mm; Titanium alloy TC 4, specification 200 × 160 × 0.4mm;
Coating layer material: aluminium alloy AA6061, upper and lower cover plates 220 × 180 × 1.1mm, frame 220 × 180 × 2.4mm, open the through hole of 200 × 160mm in the middle part of frame, chamfering is carried out on four limits of four of upper cover plate upper surface limits and lower cover lower surface.
Then, above-mentioned material is annealed, be specially: magnesium alloy plate is heated to 350oC, be incubated 30 minutes; Aluminium alloy plate is heated to 450oC, is incubated 90 minutes; Titanium alloy sheet is heated to 500oC, is incubated 60 minutes, clad material 450oC, 90 minutes.
S2) use grinding machine assembling steel brush in angle to be that grinding process is carried out on two surfaces that two surfaces relative between magnesium alloy plate with aluminium alloy plate and aluminium alloy plate are relative with titanium alloy sheet to be composite of sheet material, rear alcohol rinse of polishing, fan dries up.
S3) contact surface between magnesium alloy plate and upper cover plate and the contact surface between titanium alloy sheet and lower cover smear interleaving agent.Interleaving agent can prevent the upper and lower surface of coating layer material and composite plate compound in the operation of rolling, and is convenient to the coating layer material after being separated roll forming and composite plate
S4) titanium alloy sheet, aluminium alloy plate and magnesium alloy plate are put into by pretreated sheet material successively the through hole of frame; form magnesium/aluminium/titanium from top to bottom; build upper and lower cover plates; use metal inert gas arc welding technique that frame and upper and lower cover plates are welded into an entirety, after welding, the structure of clad as shown in Figure 2.
S5) by S4) coated good material puts into heating furnace 15 minutes, heating-up temperature 450oC.
S6) to through S5) material after process is rolled, roll reduction 35%, mill speed 0.2m/s.
S7) strip off clad, takes out and composite plate, rolls after annealing, annealing temperature 200oC, annealing time 60 minutes to composite plate.
Carry out Mechanics Performance Testing to the magnesium/aluminium/titanium composite panel obtained, Mechanics Performance Testing figure is shown in Fig. 3: as shown in Figure 3, and the tensile strength of the composite plate that the present embodiment obtains is: its tensile strength is 382MPa, and percentage elongation is 22%.
Embodiment 2
S1) sheet material annealing
First, chosen material:
Composite board material: magnesium alloy AZ31,200 × 16 × 0.9mm; Aluminium alloy AA6061,200 × 160 × 0.9mm; Titanium alloy TC 4,200 × 160 × 0.2mm;
Coating layer material: aluminium alloy AA6061, upper and lower cover plates 230 × 190 × 1.2mm, frame 230 × 190 × 2mm, open the through hole of 200 × 160mm in the middle part of frame, chamfering is carried out on four limits of four of upper cover plate upper surface limits and lower cover lower surface.
Then, above-mentioned material is annealed, be specially: magnesium alloy annealing temperature 350oC, annealing time 30 minutes; Aluminium alloy annealing temperature 450oC, annealing time 90 minutes; Titanium alloy annealing temperature 500oC, annealing time 60 minutes, coating layer material annealing temperature 450oC, annealing time 90 minutes.
S2) use grinding machine assembling steel brush in angle to be that grinding process is carried out on two surfaces that two surfaces relative between magnesium alloy plate with aluminium alloy plate and aluminium alloy plate are relative with titanium alloy sheet to be composite of sheet material, rear alcohol rinse of polishing, fan dries up.
S3) contact surface between magnesium alloy plate and upper cover plate and the contact surface between titanium alloy sheet and lower cover smear interleaving agent.
S4) titanium alloy sheet, aluminium alloy plate and magnesium alloy plate are put into by pretreated sheet material successively the through hole of frame; form magnesium/aluminium/titanium from top to bottom; build upper and lower cover plates, use metal inert gas arc welding technique that frame and upper and lower cover plates are welded into an entirety.
S5) by S4) coated good material puts into heating furnace 10 minutes, heating-up temperature 400oC.
S6) to through S5) material after process is rolled, roll reduction 30%, mill speed 0.2m/s.
S7) strip off clad, takes out and composite plate, rolls after annealing, annealing temperature 200oC, annealing time 60 minutes to composite plate.
Carry out Mechanics Performance Testing to the magnesium/aluminium/titanium composite panel obtained, Mechanics Performance Testing figure is shown in Fig. 4: as shown in Figure 4, and the tensile strength of the composite plate that the present embodiment obtains is 375MPa, and percentage elongation is 13.5%.
As shown in Figure 5, the compound interface of magnesium/aluminium/titanium composite panel that the compound interface of the magnesium/aluminium/titanium composite panel obtained by embodiment 2 obviously obtains than traditional milling method is more straight, and the plate shape of the composite plate that milling method of the present invention rolls out is better.
More than show and describe general principle of the present invention and principal character and advantage of the present invention, to those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should by description integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (10)
1. magnesium/aluminium/titanium composite panel sandwich rolling method, is characterized in that: comprise the following steps:
S1) sheet material annealing: using as the magnesium alloy plate of composite board material, aluminium alloy plate and titanium alloy sheet, and carry out heating, be incubated and cooling naturally as the upper and lower cover plate of clad and frame;
S2) surface treatment: polished in magnesium alloy plate, face to be composite between aluminium alloy plate and titanium alloy sheet;
S3) interleaving agent is smeared: the contact surface between upper and lower cover plate and magnesium alloy plate, titanium alloy sheet smears interleaving agent;
S4) coated: magnesium alloy plate, aluminium alloy plate, titanium alloy sheet are put into frame successively, then frame and upper and lower cover plate are welded into an entirety;
S5) preheating before rolling: coated good sheet material is put into heating furnace and heats;
S6) rolling: utilize milling train to be rolled to form composite plate to the material after coated;
S7) roll after annealing: strip off clad, magnesium/aluminium/titanium composite panel that taking-up is wrapped by also carries out annealing in process to it.
2. magnesium/aluminium according to claim 1/titanium composite panel sandwich rolling method, is characterized in that: described step S1) in, magnesium alloy plate heating-up temperature is 300-450 DEG C, and temperature retention time is 10-60 minute; Aluminium alloy plate heating-up temperature is 400-600 DEG C, and temperature retention time is 60-120 minute; Titanium alloy sheet heating-up temperature is 300-550 DEG C, and temperature retention time is 60-120 minute; Coating layer material heating-up temperature is 400-800 DEG C, temperature retention time 60-240 minute.
3. magnesium/aluminium according to claim 1/titanium composite panel sandwich rolling method, is characterized in that: described step S5) in, before rolling, preheat temperature is 350-500 DEG C, and temperature retention time is 10-30 minute.
4. magnesium/aluminium according to claim 1/titanium composite panel sandwich rolling method, is characterized in that: described step S6) in, mill speed is not less than 0.2m/s, and roll reduction is not less than 30%.
5. magnesium/aluminium according to claim 1/titanium composite panel sandwich rolling method, is characterized in that: described step S7) in, rolling after annealing temperature is 200-450 DEG C, and annealing time is 30-180 minute.
6. magnesium/aluminium according to claim 1/titanium composite panel sandwich rolling method, is characterized in that: described step S3) in, choose one in polytetrafluoroethylene (PTFE), graphite powder, plain oil and rubber as interleaving agent.
7. magnesium/aluminium according to claim 1/titanium composite panel sandwich rolling method, it is characterized in that: described magnesium alloy plate is selected from the one in AZ31, AZ61 and AZ80, described aluminium alloy plate is selected from the one in AA1100, AA5083, AA6061 and AA7075, described titanium alloy sheet is selected from the one in TA1, TA2, TC4, TC6 and TC10, and described clad is selected from the one in 20 steel, 45 steel, AA1100 aluminium alloy and AA6061 aluminium alloy.
8. magnesium/aluminium according to claim 1/titanium composite panel sandwich rolling method, is characterized in that: described step S2) in, choose steel brush, sand paper or emery wheel and polish, with the surface after alcohol or acetone rinsing polishing, natural air drying or fan dry up.
9. magnesium/aluminium according to claim 1/titanium composite panel sandwich rolling method, is characterized in that: described step S4) in welding procedure be non-melt pole Heliarc welding or metal inert gas arc welding.
10. magnesium/aluminium according to claim 1/titanium composite panel sandwich rolling method, is characterized in that: in step S5) edge of the front edge to upper cover plate upper surface and lower cover lower surface carries out chamfering.
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Cited By (10)
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| CN107299206A (en) * | 2017-06-05 | 2017-10-27 | 柳州市御朗机械制造有限公司 | The production method of automobile tyrerim hot-rolled steel |
| CN107835721A (en) * | 2015-06-26 | 2018-03-23 | 蒂森克虏伯钢铁欧洲股份公司 | Use for the method for manufacture material composite members and rolling equipment in rolling equipment |
| CN107999536A (en) * | 2017-12-20 | 2018-05-08 | 东北大学 | A kind of ply rolling method that horizontal Varying Thickness Plates band is prepared using point-symmetry property |
| CN109457263A (en) * | 2019-01-02 | 2019-03-12 | 吉林大学 | A method of preparing magnesium alloy-stainless steel clad plate |
| CN109675926A (en) * | 2019-03-04 | 2019-04-26 | 吉林大学 | A kind of symmetrical liner plate rolling prepares magnesium/aluminium/titanium alloy composite panel method |
| CN109731912A (en) * | 2019-03-04 | 2019-05-10 | 吉林大学 | A kind of titanium/aluminium/magnesium composite plate tooth form faying face rolling preparation method |
| CN110586683A (en) * | 2019-09-06 | 2019-12-20 | 鞍钢股份有限公司 | Production method of wide-specification titanium steel composite board |
| CN110788135A (en) * | 2019-09-30 | 2020-02-14 | 鞍钢股份有限公司 | Composite blank manufacturing method for rolling titanium-steel composite plate |
| CN114101329A (en) * | 2021-11-26 | 2022-03-01 | 中色科技股份有限公司 | Continuous cold rolling production method for single TC4 titanium alloy plate |
| CN116651937A (en) * | 2023-07-31 | 2023-08-29 | 海安太原理工大学先进制造与智能装备产业研究院 | Large-thickness-ratio magnesium/titanium composite board and gradient different-temperature rolling composite method |
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| CN107835721A (en) * | 2015-06-26 | 2018-03-23 | 蒂森克虏伯钢铁欧洲股份公司 | Use for the method for manufacture material composite members and rolling equipment in rolling equipment |
| CN107299206A (en) * | 2017-06-05 | 2017-10-27 | 柳州市御朗机械制造有限公司 | The production method of automobile tyrerim hot-rolled steel |
| CN107999536A (en) * | 2017-12-20 | 2018-05-08 | 东北大学 | A kind of ply rolling method that horizontal Varying Thickness Plates band is prepared using point-symmetry property |
| CN109457263A (en) * | 2019-01-02 | 2019-03-12 | 吉林大学 | A method of preparing magnesium alloy-stainless steel clad plate |
| CN109731912B (en) * | 2019-03-04 | 2020-08-04 | 吉林大学 | Rolling preparation method for tooth-shaped joint surface of titanium/aluminum/magnesium composite plate |
| CN109675926A (en) * | 2019-03-04 | 2019-04-26 | 吉林大学 | A kind of symmetrical liner plate rolling prepares magnesium/aluminium/titanium alloy composite panel method |
| CN109731912A (en) * | 2019-03-04 | 2019-05-10 | 吉林大学 | A kind of titanium/aluminium/magnesium composite plate tooth form faying face rolling preparation method |
| CN110586683A (en) * | 2019-09-06 | 2019-12-20 | 鞍钢股份有限公司 | Production method of wide-specification titanium steel composite board |
| CN110586683B (en) * | 2019-09-06 | 2021-04-02 | 鞍钢股份有限公司 | Production method of wide-specification titanium steel composite board |
| CN110788135A (en) * | 2019-09-30 | 2020-02-14 | 鞍钢股份有限公司 | Composite blank manufacturing method for rolling titanium-steel composite plate |
| CN114101329A (en) * | 2021-11-26 | 2022-03-01 | 中色科技股份有限公司 | Continuous cold rolling production method for single TC4 titanium alloy plate |
| CN114101329B (en) * | 2021-11-26 | 2024-04-05 | 中色科技股份有限公司 | Continuous cold rolling production method for single TC4 titanium alloy plate |
| CN116651937A (en) * | 2023-07-31 | 2023-08-29 | 海安太原理工大学先进制造与智能装备产业研究院 | Large-thickness-ratio magnesium/titanium composite board and gradient different-temperature rolling composite method |
| CN116651937B (en) * | 2023-07-31 | 2023-10-13 | 海安太原理工大学先进制造与智能装备产业研究院 | Large-thickness-ratio magnesium/titanium composite board and gradient different-temperature rolling composite method |
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