CN104233129A - Method for producing high-magnesium aluminum alloy sheets - Google Patents
Method for producing high-magnesium aluminum alloy sheets Download PDFInfo
- Publication number
- CN104233129A CN104233129A CN201410457425.5A CN201410457425A CN104233129A CN 104233129 A CN104233129 A CN 104233129A CN 201410457425 A CN201410457425 A CN 201410457425A CN 104233129 A CN104233129 A CN 104233129A
- Authority
- CN
- China
- Prior art keywords
- magnesium aluminum
- alloy
- aluminum alloy
- thin plate
- aluminium
- Prior art date
- 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.)
- Granted
Links
Landscapes
- Metal Rolling (AREA)
Abstract
The invention discloses a method for producing high-magnesium aluminum alloy sheets and belongs to the field of aluminum alloy processing. The production method comprises the following steps: preparing materials, smelting, preserving the temperature, casting, performing stress relieving, machining, preheating, hot-rolling, cold-rolling, performing stabilizing annealing and performing cross shearing. Compared with 5A06-H34 sheets produced in the prior art, the high-magnesium aluminum alloy sheets produced by the invention have the advantages that the preheating temperature is improved, and the finishing rolling temperature is controlled, so that the produced 5A06-H34 sheets do not need to be coated by pure aluminum, an intermediate annealing process is omitted, the production cost is reduced, the production period is shortened, and the mechanical properties such as tensile strength, yield strength and elongation are improved.
Description
Technical field
The present invention relates to aluminium alloy manufacture field, especially relate to a kind of production method of high-magnesium aluminum alloy thin plate.
Background technology
5A06 high-magnesium aluminum alloy belongs to Al-Mg system alloy, it is high that this alloy has intensity, weldability is good, excellent corrosion resistance and easy formability, is widely used in the manufacture of the equipment such as facilities for transport and communication welding structural element, transport coal car, refrigeration plant, TV tower, drilling rigs, guided missile, part, plate armour.Because its Mg content is 5.8% ~ 6.8%, hot rolling deformation drag is large, easily ftractures, and the problems such as mechanical property is unstable, corrosion stability is poor, hot rolled thickness is uneven often appear in industrial production 5A06-H34 thin plate.In order to prevent Hot rolling craccking, normal employing technique sandwich rolling, increases welding sequence and solves problem.The typical technological process of production of 5A06-H34 thin plate as shown in Figure 1.
This technique, due to need be coated with fine aluminium, not only can cause that production efficiency is low, high in cost of production problem; And the 5A06-H34 light sheet of the coated production of technique has following shortcoming: (1) mechanical property is unstable; (2) gauge control is uneven; (3) Annealing Property is unstable, and corrodibility is poor.
Given this, the present invention proposes a kind of new method for producing to prepare 5A06-H34 light sheet, namely be to improve 5A06-H34 thin plate hot rolling plasticity, save technique sandwich rolling operation, reduce production cost, 5A06-H34 thin plate is made to have the advantage of high strength, corrosion-resistant, dimensional stabilizing, to meet the demand of modernization industry.
Summary of the invention
Goal of the invention of the present invention is: for above-mentioned Problems existing, provides a kind of production method of high-magnesium aluminum alloy thin plate.Production method of the present invention has relative to traditional sandwich rolling technique, can reduce production cost, and the high-magnesium aluminum alloy plate of gained has the advantages such as intensity is high, good corrosion resistance, dimensional stabilizing.
The technical solution used in the present invention is as follows:
A kind of production method of high-magnesium aluminum alloy thin plate is provided, it is characterized in that comprising the following steps:
(1) get the raw materials ready: be Si:0.08 ~ 0.4% by element percentage in high-magnesium aluminum alloy thin plate, Fe:0.15 ~ 0.4%, Cu:0.02 ~ 0.08%, Mg:5.85 ~ 6.75%, Mn:0.5 ~ 0.8%, Zn:0.02 ~ 0.1%; Be:0.0005 ~ 0.0025%, Ti:0.02 ~ 0.05%, surplus is Al and inevitable impurity element, often kind of inevitable impurity element, all lower than 0.05% and total amount is less than 0.15%, takes aluminium silicon master alloy, ferro-aluminum master alloy, aluminum bronze intermediate alloy, pure magnesium ingot, aluminium manganese master alloy, aluminium zinc master alloy, aluminium beryllium master alloy, aluminium titanium master alloy and fine aluminium ingot respectively;
(2) melting: raw material step (1) taken is except aluminium beryllium master alloy and aluminium titanium master alloy, be dosed in dome hydraulic tilting type smelting furnace and carry out melting, smelting temperature is 720 ~ 750 DEG C, and smelting time is 4 ~ 8h, obtains alloy solution;
(3) be incubated: refining, to leave standstill, add aluminium beryllium master alloy and aluminium titanium master alloy, holding temperature 710 ~ 730 DEG C, soaking time is 3 ~ 5h;
(4) cast: adopt semicontinuous casting, casting temp is 680 ~ 690 DEG C, obtains alloy cast ingot;
(5) stress relief annealing: be placed in soaking pit by the alloy cast ingot that step (4) obtains, is heated to 250 ~ 400 DEG C of stress relief annealings, after insulation 5 ~ 10h, and air cooling of coming out of the stove;
(6) mechanical workout: tail that the alloy cast ingot processed through step (5) is decaptitated, milling face, plane limit;
(7) preheating: the alloy cast ingot processed through step (6) is heated to 500 ~ 540 DEG C, soaking time 10 ~ 24h;
(8) hot rolling: the start rolling temperature of the alloy cast ingot through step (7) preheating is controlled to carry out hot rolling after 480 ~ 510 DEG C, roll into the high-magnesium aluminum alloy sheet bar that thickness is 6mm, finishing temperature control is at 330 ~ 380 DEG C;
(9) cold rolling: it is 1 ~ 4mm that the high-magnesium aluminum alloy sheet bar that step (8) obtains is cold-rolled to thickness, obtain high-magnesium aluminum alloy thin plate slab;
(10) stabilizing annealing: the high-magnesium aluminum alloy thin plate slab that step (9) is obtained 100 ~ 150 DEG C of stabilization treatment, soaking time 1 ~ 3h;
(11) horizontally to cut: cut horizontal for the high-magnesium aluminum alloy thin plate slab processed through step (10) to trimmed size, then sheet material is placed 5d ~ 100d and obtain high-magnesium aluminum alloy thin plate.
Further, in described step (3), holding temperature is 720 DEG C, and soaking time is 4h.
Further, in described step (4), casting temp is 685 DEG C.
Further, described step (5) is placed in soaking pit by alloy cast ingot, is heated to 300 DEG C of stress relief annealings.
Further, the milling face in described step (6) refers to upper and lower for alloy cast ingot surperficial milling face 10 ~ 15mm, side milling 10mm.
Further, the preheating in described step (7) is that the alloy cast ingot in step (6) is heated to 510 ~ 530 DEG C.
Further, in described step (8), finishing temperature is 330 ~ 345 DEG C.
Further, in described step (8), finishing temperature is 348 DEG C.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
1, the unrelieved stress in alloy cast ingot often causes workpiece deform when sawing and ftracture, and have detrimentally affect to the strength of materials, toughness, ductility, the present invention eliminates by carrying out stress relief annealing to alloying ingot the unrelieved stress produced in castingprocesses, heavy alloyed dimensional stability can be put forward, improve machining property and the alloy strength of alloy.
2, the present invention is by improving hot rolling preheating temperature, improve hot rolling workability, eliminate technique sandwich rolling operation, reduce production cost, relative to traditional sandwich rolling technique, often produce the use that 1 ton of high-magnesium aluminum alloy thin plate can reduce by 0.014 ton of coated fine aluminium, can be cost-saving 238 yuan.
3, the present invention is also by controlling finishing temperature, makes sheet material be in Full Annealing state, eliminates process annealing operation, shortens the production cycle, improves production efficiency.In addition, the too high meeting of finishing temperature causes coarse grains, and product plasticity and mechanical property reduce, and the too low meeting of finishing temperature causes resistance to deformation to increase, the present invention, by testing finishing temperature control in rational scope, can carry heavy alloyed mechanical property and corrosion resistance.
Can realize 5A06-H34 thin plate tensile strength by method of the present invention and reach 380 ~ 460MPa, yield strength reaches 280 ~ 350MPa, and unit elongation is 12 ~ 18%, and sheet material thin and thick is even, controls within 0.20mm with plate difference, and surface is high bright and clean.
Accompanying drawing explanation
Fig. 1 is the typical technological process of production of 5A06-H34 thin plate.
Embodiment
Below by embodiment, the invention will be further described, and technical scheme of the present invention is not limited to following cited embodiment, also comprises the arbitrary combination of embodiment.
In some embodiments of the invention, described a kind of high-magnesium aluminum alloy by mass percentage by Si:0.08 ~ 0.4%, Fe:0.15 ~ 0.4%, Cu:0.02 ~ 0.08%, Mg:5.85 ~ 6.75%, Mn:0.5 ~ 0.8%, Zn:0.02 ~ 0.1%; Be:0.0005 ~ 0.0025%, Ti:0.02 ~ 0.05%, surplus is Al and inevitable impurity element composition; Often kind of inevitable impurity element is all lower than 0.05% and total amount is less than 0.15%.
In some embodiments of the invention, a kind of preparation method of high-magnesium aluminum alloy carries out according to the following steps:
(1) get the raw materials ready: be Si:0.08 ~ 0.4% by element percentage in high-magnesium aluminum alloy thin plate, Fe:0.15 ~ 0.4%, Cu:0.02 ~ 0.08%, Mg:5.85 ~ 6.75%, Mn:0.5 ~ 0.8%, Zn:0.02 ~ 0.1%; Be:0.0005 ~ 0.0025%, Ti:0.02 ~ 0.05%, surplus is Al and inevitable impurity element, often kind of inevitable impurity element, all lower than 0.05% and total amount is less than 0.15%, takes aluminium silicon master alloy, ferro-aluminum master alloy, aluminum bronze intermediate alloy, pure magnesium ingot, aluminium manganese master alloy, aluminium zinc master alloy, aluminium beryllium master alloy, aluminium titanium master alloy and fine aluminium ingot respectively;
(2) melting: raw material step (1) taken is except aluminium beryllium master alloy and aluminium titanium master alloy, be dosed in dome hydraulic tilting type smelting furnace and carry out melting, smelting temperature is 720 ~ 750 DEG C, and smelting time is 4 ~ 8h, obtains alloy solution;
(3) be incubated: refining, to leave standstill, add aluminium beryllium master alloy and aluminium titanium master alloy, holding temperature 710 ~ 730 DEG C, soaking time is 3 ~ 5h;
(4) cast: adopt semicontinuous casting, casting temp is 680 ~ 690 DEG C, obtains alloy cast ingot;
(5) stress relief annealing: be placed in soaking pit by the alloy cast ingot that step (4) obtains, is heated to 250 ~ 400 DEG C of stress relief annealings, after insulation 5 ~ 10h, and air cooling of coming out of the stove;
(6) mechanical workout: tail that the alloy cast ingot processed through step (5) is decaptitated, milling face, plane limit;
(7) preheating: the alloy cast ingot processed through step (6) is heated to 500 ~ 540 DEG C, soaking time 10 ~ 24h;
(8) hot rolling: the start rolling temperature of the alloy cast ingot through step (7) preheating is controlled to carry out hot rolling after 480 ~ 510 DEG C, roll into the high-magnesium aluminum alloy sheet bar that thickness is 6mm, finishing temperature control is at 330 ~ 380 DEG C;
(9) cold rolling: it is 1 ~ 4mm that the high-magnesium aluminum alloy sheet bar that step (8) obtains is cold-rolled to thickness, obtain high-magnesium aluminum alloy thin plate slab;
(10) stabilizing annealing: the high-magnesium aluminum alloy thin plate slab that step (9) is obtained 100 ~ 150 DEG C of stabilization treatment, soaking time 1 ~ 3h;
(11) horizontally to cut: cut horizontal for the high-magnesium aluminum alloy thin plate slab processed through step (10) to trimmed size, then sheet material is placed 5d ~ 100d and obtain high-magnesium aluminum alloy thin plate.
In some embodiments of the invention, in described step (3), holding temperature is 720 DEG C, and soaking time is 4h.
In some embodiments of the invention, in described step (4), casting temp is 685 DEG C.
In some embodiments of the invention, described step (5) is placed in soaking pit by alloy cast ingot, is heated to 300 DEG C of stress relief annealings.
In some embodiments of the invention, the milling face in described step (6) refers to upper and lower for alloy cast ingot surperficial milling face 10 ~ 15mm, side milling 10mm.
In some embodiments of the invention, the preheating in described step (7) is that the alloy cast ingot in step (6) is heated to 510 ~ 530 DEG C.
In some embodiments of the invention, in described step (8), finishing temperature is 330 ~ 345 DEG C.
In some embodiments of the invention, in described step (8), finishing temperature is 348 DEG C.
Table 1 is the mass percent (wt%) of the element in embodiment 1 ~ 4 high-magnesium aluminum alloy thin plate.
The mass percent (wt%) of the element in table 1 embodiment 1 ~ 4 high-magnesium aluminum alloy thin plate
| ? | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Si | 0.08 | 0.3 | 0.12 | 0.4 |
| Fe | 0.15 | 0.4 | 0.2 | 0.3 |
| Cu | 0.08 | 0.02 | 0.04 | 0.06 |
| Mg | 5.85 | 6.0 | 6.25 | 6.75 |
| Mn | 0.8 | 0.7 | 0.62 | 0.5 |
| Zn | 0.06 | 0.02 | 0.04 | 0.1 |
| Be | 0.0005 | 0.002 | 0.0006 | 0.0025 |
| Ti | 0.05 | 0.04 | 0.03 | 0.02 |
| Single impurity | ≤0.05 | ≤0.05 | ≤0.05 | ≤0.05 |
| Other impurity | ≤0.15 | ≤0.15 | ≤0.15 | ≤0.15 |
| Al | Surplus | Surplus | Surplus | Surplus |
[0056] embodiment 1
High-magnesium aluminum alloy thin plate is prepared: (1) gets the raw materials ready: take aluminium silicon master alloy, ferro-aluminum master alloy, aluminum bronze intermediate alloy, pure magnesium ingot, aluminium manganese master alloy, aluminium zinc master alloy, aluminium beryllium master alloy, aluminium titanium master alloy and fine aluminium ingot respectively by the element proportioning of embodiment in table 11 according to following step; (2) melting: raw material step (1) taken, except aluminium beryllium master alloy and aluminium titanium master alloy, is dosed in dome hydraulic tilting type smelting furnace and carries out melting, and smelting temperature is 720 DEG C, and smelting time is 8h, obtains alloy solution; (3) be incubated: refining, to leave standstill, add aluminium beryllium master alloy and aluminium titanium master alloy, holding temperature 710 DEG C, soaking time is 5h; (4) cast: adopt semicontinuous casting, casting temp is 680 DEG C, obtains alloy cast ingot; (5) stress relief annealing: be placed in soaking pit by the alloy cast ingot that step (4) obtains, is heated to 250 DEG C of stress relief annealings, after insulation 10h, and air cooling of coming out of the stove; (6) mechanical workout: tail that the alloy cast ingot processed through step (5) is decaptitated, milling face, plane limit; Wherein upper and lower surperficial milling face 10mm, side milling 10mm.(7) preheating: the alloy cast ingot processed through step (6) is heated to 500 DEG C, soaking time 24h; (8) hot rolling: the start rolling temperature of the alloy cast ingot through step (7) preheating is controlled to carry out hot rolling at 480 DEG C, roll into the high-magnesium aluminum alloy sheet bar that thickness is 6mm, finishing temperature control is at 335 DEG C; (9) cold rolling: it is 1mm that the high-magnesium aluminum alloy sheet bar that step (8) obtains is cold-rolled to thickness, obtain high-magnesium aluminum alloy thin plate slab; (10) stabilizing annealing: the high-magnesium aluminum alloy thin plate slab that step (9) is obtained 100 DEG C of stabilization treatment, soaking time 3h; (11) horizontally to cut: cut horizontal for the high-magnesium aluminum alloy thin plate slab processed through step (10) to trimmed size, then sheet material is placed 5d and obtain high-magnesium aluminum alloy thin plate.
Embodiment 2
High-magnesium aluminum alloy thin plate is prepared: (1) gets the raw materials ready: take aluminium silicon master alloy, ferro-aluminum master alloy, aluminum bronze intermediate alloy, pure magnesium ingot, aluminium manganese master alloy, aluminium zinc master alloy, aluminium beryllium master alloy, aluminium titanium master alloy and fine aluminium ingot respectively by the element proportioning of embodiment in table 12 according to following step; (2) melting: raw material step (1) taken, except aluminium beryllium master alloy and aluminium titanium master alloy, is dosed in dome hydraulic tilting type smelting furnace and carries out melting, and smelting temperature is 750 DEG C, and smelting time is 4h, obtains alloy solution; (3) be incubated: refining, to leave standstill, add aluminium beryllium master alloy and aluminium titanium master alloy, holding temperature 730 DEG C, soaking time is 3h; (4) cast: adopt semicontinuous casting, casting temp is 690 DEG C, obtains alloy cast ingot; (5) stress relief annealing: be placed in soaking pit by the alloy cast ingot that step (4) obtains, is heated to 400 DEG C of stress relief annealings, after insulation 5h, and air cooling of coming out of the stove; (6) mechanical workout: tail that the alloy cast ingot processed through step (5) is decaptitated, milling face, plane limit; Wherein upper and lower surperficial milling face 15mm, side milling 10mm.(7) preheating: the alloy cast ingot processed through step (6) is heated to 540 DEG C, soaking time 24h; (8) hot rolling: the start rolling temperature of the alloy cast ingot through step (7) preheating is controlled to carry out hot rolling at 510 DEG C, roll into the high-magnesium aluminum alloy sheet bar that thickness is 6mm, finishing temperature control is at 380 DEG C; (9) cold rolling: it is 4mm that the high-magnesium aluminum alloy sheet bar that step (8) obtains is cold-rolled to thickness, obtain high-magnesium aluminum alloy thin plate slab; (10) stabilizing annealing: the high-magnesium aluminum alloy thin plate slab that step (9) is obtained 150 DEG C of stabilization treatment, soaking time 1h; (11) horizontally to cut: cut horizontal for the high-magnesium aluminum alloy thin plate slab processed through step (10) to trimmed size, then sheet material is placed 100d and obtain high-magnesium aluminum alloy thin plate.
Embodiment 3
High-magnesium aluminum alloy thin plate is prepared: (1) gets the raw materials ready: take aluminium silicon master alloy, ferro-aluminum master alloy, aluminum bronze intermediate alloy, pure magnesium ingot, aluminium manganese master alloy, aluminium zinc master alloy, aluminium beryllium master alloy, aluminium titanium master alloy and fine aluminium ingot respectively by the element proportioning of embodiment in table 13 according to following step; (2) melting: raw material step (1) taken, except aluminium beryllium master alloy and aluminium titanium master alloy, is dosed in dome hydraulic tilting type smelting furnace and carries out melting, and smelting temperature is 740 DEG C, and smelting time is 5h, obtains alloy solution; (3) be incubated: refining, to leave standstill, add aluminium beryllium master alloy and aluminium titanium master alloy, holding temperature 720 DEG C, soaking time is 4h; (4) cast: adopt semicontinuous casting, casting temp is 685 DEG C, obtains alloy cast ingot; (5) stress relief annealing: be placed in soaking pit by the alloy cast ingot that step (4) obtains, is heated to 300 DEG C of stress relief annealings, after insulation 8h, and air cooling of coming out of the stove; (6) mechanical workout: tail that the alloy cast ingot processed through step (5) is decaptitated, milling face, plane limit; Wherein upper and lower surperficial milling face 12mm, side milling 10mm.(7) preheating: the alloy cast ingot processed through step (6) is heated to 510 DEG C, soaking time 12h; (8) hot rolling: the start rolling temperature of alloy cast ingot step (7) processed controls to carry out hot rolling at 500 DEG C, roll into the high-magnesium aluminum alloy sheet bar that thickness is 6mm, finishing temperature control is at 330 DEG C; (9) cold rolling: it is 4mm that the high-magnesium aluminum alloy sheet bar that step (8) obtains is cold-rolled to thickness, obtain high-magnesium aluminum alloy thin plate slab; (10) stabilizing annealing: the high-magnesium aluminum alloy thin plate slab that step (9) is obtained 130 DEG C of stabilization treatment, soaking time 1h; (11) horizontally to cut: cut horizontal for the high-magnesium aluminum alloy thin plate slab processed through step (10) to trimmed size, then sheet material is placed 30d and obtain high-magnesium aluminum alloy thin plate.
Embodiment 4
High-magnesium aluminum alloy thin plate is prepared: (1) gets the raw materials ready: take aluminium silicon master alloy, ferro-aluminum master alloy, aluminum bronze intermediate alloy, pure magnesium ingot, aluminium manganese master alloy, aluminium zinc master alloy, aluminium beryllium master alloy, aluminium titanium master alloy and fine aluminium ingot respectively by the element proportioning of embodiment in table 14 according to following step; (2) melting: raw material step (1) taken, except aluminium beryllium master alloy and aluminium titanium master alloy, is dosed in dome hydraulic tilting type smelting furnace and carries out melting, and smelting temperature is 740 DEG C, and smelting time is 6h, obtains alloy solution; (3) be incubated: refining, to leave standstill, add aluminium beryllium master alloy and aluminium titanium master alloy, holding temperature 720 DEG C, soaking time is 4h; (4) cast: adopt semicontinuous casting, casting temp is 683 DEG C, obtains alloy cast ingot; (5) stress relief annealing: be placed in soaking pit by the alloy cast ingot that step (4) obtains, is heated to 346 DEG C of stress relief annealings, after insulation 8h, and air cooling of coming out of the stove; (6) mechanical workout: tail that the alloy cast ingot processed through step (5) is decaptitated, milling face, plane limit; Wherein upper and lower surperficial milling face 15mm, side milling 10mm.(7) preheating: the alloy cast ingot processed through step (6) is heated to 515 DEG C, soaking time 16h; (8) hot rolling: carry out hot rolling after the alloy cast ingot processed through step (7) is heated to 500 DEG C, roll into the high-magnesium aluminum alloy sheet bar that thickness is 6mm, finishing temperature control is at 340 DEG C; (9) cold rolling: it is 4mm that the high-magnesium aluminum alloy sheet bar that step (8) obtains is cold-rolled to thickness, obtain high-magnesium aluminum alloy thin plate slab; (10) stabilizing annealing: the high-magnesium aluminum alloy thin plate slab that step (9) is obtained 130 DEG C of stabilization treatment, soaking time 1h; (11) horizontally to cut: cut horizontal for the high-magnesium aluminum alloy thin plate slab processed through step (10) to trimmed size, then sheet material is placed 30d and obtain high-magnesium aluminum alloy thin plate.
Embodiment 5
The present embodiment and the difference of embodiment 3 are that the preheating temperature of step (7) finishing temperature that is different and step (8) is different, the preheating Heating temperature of the present embodiment is 520 DEG C, finishing temperature is 345 DEG C, other steps and parameter identical with embodiment 3.
Embodiment 6
The present embodiment and the difference of embodiment 3 are that the preheating temperature of step (7) finishing temperature that is different and step (8) is different, the preheating Heating temperature of the present embodiment is 525 DEG C, finishing temperature is 348 DEG C, other steps and parameter identical with embodiment 3.
Embodiment 7
The present embodiment and the difference of embodiment 3 are that the preheating temperature of step (7) finishing temperature that is different and step (8) is different, the preheating Heating temperature of the present embodiment is 530 DEG C, finishing temperature is 350 DEG C, other steps and parameter identical with embodiment 3.
Embodiment 8
The present embodiment and the difference of embodiment 3 are that the preheating temperature of step (7) finishing temperature that is different and step (8) is different, the preheating Heating temperature of the present embodiment is 540 DEG C, finishing temperature is 360 DEG C, other steps and parameter identical with embodiment 3.
The high-magnesium aluminum alloy obtained embodiment 1-8 carries out tensile strength, yield strength, unit elongation and with plate difference index test, test result is as follows: tensile strength is 380 ~ 460MPa, yield strength is 280 ~ 350MPa, unit elongation is 12 ~ 18%, sheet material thin and thick is even, control within 0.15mm with plate difference, surface is high bright and clean.Relative to the 5A06-H34 thin plate that prior art is produced, tensile strength is about 315MPa, yield strength is about 160MPa, elongation is about 10 ~ 15%, and the present invention, by the 5A06-H34 thin plate improving preheating temperature, control finishing temperature is produced, does not need fine aluminium coated, save process annealing operation, reduce production cost, shorten the production cycle, improve the mechanical properties such as tensile strength, yield strength and unit elongation.
Claims (8)
1. a production method for high-magnesium aluminum alloy thin plate, is characterized in that comprising the following steps:
(1) get the raw materials ready: be Si:0.08 ~ 0.4% by element percentage in high-magnesium aluminum alloy thin plate, Fe:0.15 ~ 0.4%, Cu:0.02 ~ 0.08%, Mg:5.85 ~ 6.75%, Mn:0.5 ~ 0.8%, Zn:0.02 ~ 0.1%; Be:0.0005 ~ 0.0025%, Ti:0.02 ~ 0.05%, surplus is Al and inevitable impurity element, often kind of inevitable impurity element, all lower than 0.05% and total amount is less than 0.15%, takes aluminium silicon master alloy, ferro-aluminum master alloy, aluminum bronze intermediate alloy, pure magnesium ingot, aluminium manganese master alloy, aluminium zinc master alloy, aluminium beryllium master alloy, aluminium titanium master alloy and fine aluminium ingot respectively;
(2) melting: raw material step (1) taken is except aluminium beryllium master alloy and aluminium titanium master alloy, be dosed in dome hydraulic tilting type smelting furnace and carry out melting, smelting temperature is 720 ~ 750 DEG C, and smelting time is 4 ~ 8h, obtains alloy solution;
(3) be incubated: refining, to leave standstill, add aluminium beryllium master alloy and aluminium titanium master alloy, holding temperature 710 ~ 730 DEG C, soaking time is 3 ~ 5h;
(4) cast: adopt semicontinuous casting, casting temp is 680 ~ 690 DEG C, obtains alloy cast ingot;
(5) stress relief annealing: be placed in soaking pit by the alloy cast ingot that step (4) obtains, is heated to 250 ~ 400 DEG C of stress relief annealings, after insulation 5 ~ 10h, and air cooling of coming out of the stove;
(6) mechanical workout: tail that the alloy cast ingot processed through step (5) is decaptitated, milling face, plane limit;
(7) preheating: the alloy cast ingot processed through step (6) is heated to 500 ~ 540 DEG C, soaking time 10 ~ 24h;
(8) hot rolling: the start rolling temperature of the alloy cast ingot through step (7) preheating is controlled to carry out hot rolling at 480 ~ 510 DEG C, roll into the high-magnesium aluminum alloy thin plate that thickness is 6mm, finishing temperature control is at 330 ~ 380 DEG C;
(9) cold rolling: it is 1 ~ 4mm that the high-magnesium aluminum alloy sheet bar that step (8) obtains is cold-rolled to thickness, obtains high-magnesium aluminum alloy thin plate;
(10) stabilizing annealing: the high-magnesium aluminum alloy thin plate that step (9) is obtained 100 ~ 150 DEG C of stabilization treatment, soaking time 1 ~ 3h;
(11) horizontally to cut: cut horizontal for the high-magnesium aluminum alloy thin plate processed through step (10) to trimmed size, then sheet material is placed 5d ~ 100d and obtain high-magnesium aluminum alloy thin plate.
2. the production method of a kind of high-magnesium aluminum alloy thin plate according to claim 1, is characterized in that: in described step (3), holding temperature is 720 DEG C, and soaking time is 4h.
3. the production method of a kind of high-magnesium aluminum alloy thin plate according to claim 1, is characterized in that: in described step (4), casting temp is 685 DEG C.
4. the production method of a kind of high-magnesium aluminum alloy thin plate according to claim 1, is characterized in that: described step (5) is placed in soaking pit by alloy cast ingot, is heated to 300 DEG C of stress relief annealings.
5. the production method of a kind of high-magnesium aluminum alloy thin plate according to claim 1, is characterized in that: the milling face in described step (6) refers to upper and lower for alloy cast ingot surperficial milling face 10 ~ 15mm, side milling 10mm.
6. the production method of a kind of high-magnesium aluminum alloy thin plate according to claim 1, is characterized in that: the preheating in described step (7) is that the alloy cast ingot in step (6) is heated to 510 ~ 530 DEG C.
7. the production method of a kind of high-magnesium aluminum alloy thin plate according to claim 1, is characterized in that: in described step (8), finishing temperature is 330 ~ 345 DEG C.
8. the production method of a kind of high-magnesium aluminum alloy thin plate according to claim 1, is characterized in that: in described step (8), finishing temperature is 348 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410457425.5A CN104233129B (en) | 2014-09-10 | 2014-09-10 | A kind of production method of high-magnesium aluminum alloy thin plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410457425.5A CN104233129B (en) | 2014-09-10 | 2014-09-10 | A kind of production method of high-magnesium aluminum alloy thin plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104233129A true CN104233129A (en) | 2014-12-24 |
| CN104233129B CN104233129B (en) | 2016-08-24 |
Family
ID=52222015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410457425.5A Active CN104233129B (en) | 2014-09-10 | 2014-09-10 | A kind of production method of high-magnesium aluminum alloy thin plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104233129B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106191575A (en) * | 2016-08-26 | 2016-12-07 | 广西南南铝加工有限公司 | A kind of stabilizing annealing method of almag coiled material |
| CN108251666A (en) * | 2018-02-01 | 2018-07-06 | 广西南南铝加工有限公司 | A kind of preparation process of super high Mg-Al alloy plate |
| CN110241337A (en) * | 2019-06-25 | 2019-09-17 | 天津忠旺铝业有限公司 | A kind of preparation method of super large wide cut aluminum alloy plate materials |
| CN113042564A (en) * | 2021-03-12 | 2021-06-29 | 浙江永杰铝业有限公司 | Aluminum magnesium alloy strip and preparation method thereof |
| CN116043076A (en) * | 2022-12-27 | 2023-05-02 | 东北轻合金有限责任公司 | Processing method of high-magnesium aluminum alloy sheet for welding container |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1695846A (en) * | 2005-05-20 | 2005-11-16 | 东北轻合金有限责任公司 | Method for manufacturing cone shaped open die forgings made rom aluminium alloy |
| CN103981404A (en) * | 2014-05-04 | 2014-08-13 | 南安市国高建材科技有限公司 | Corrosion resistant tractable aluminium alloy sheet material, manufacturing method and application |
-
2014
- 2014-09-10 CN CN201410457425.5A patent/CN104233129B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1695846A (en) * | 2005-05-20 | 2005-11-16 | 东北轻合金有限责任公司 | Method for manufacturing cone shaped open die forgings made rom aluminium alloy |
| CN103981404A (en) * | 2014-05-04 | 2014-08-13 | 南安市国高建材科技有限公司 | Corrosion resistant tractable aluminium alloy sheet material, manufacturing method and application |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106191575A (en) * | 2016-08-26 | 2016-12-07 | 广西南南铝加工有限公司 | A kind of stabilizing annealing method of almag coiled material |
| CN106191575B (en) * | 2016-08-26 | 2018-01-16 | 广西南南铝加工有限公司 | A kind of production method of almag coiled material |
| CN108251666A (en) * | 2018-02-01 | 2018-07-06 | 广西南南铝加工有限公司 | A kind of preparation process of super high Mg-Al alloy plate |
| CN110241337A (en) * | 2019-06-25 | 2019-09-17 | 天津忠旺铝业有限公司 | A kind of preparation method of super large wide cut aluminum alloy plate materials |
| CN110241337B (en) * | 2019-06-25 | 2021-02-09 | 天津忠旺铝业有限公司 | Preparation method of ultra-large wide-width aluminum alloy plate |
| CN113042564A (en) * | 2021-03-12 | 2021-06-29 | 浙江永杰铝业有限公司 | Aluminum magnesium alloy strip and preparation method thereof |
| CN113042564B (en) * | 2021-03-12 | 2023-03-10 | 浙江永杰铝业有限公司 | Aluminum magnesium alloy strip and preparation method thereof |
| CN116043076A (en) * | 2022-12-27 | 2023-05-02 | 东北轻合金有限责任公司 | Processing method of high-magnesium aluminum alloy sheet for welding container |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104233129B (en) | 2016-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104561696B (en) | High ferro 5083 aluminum alloy plate materials and production method thereof | |
| CN102876939B (en) | Manufacturing method of aluminum magnesium alloy | |
| CN103667883B (en) | Low-density and high-toughness automobile-used steel board and preparation process | |
| CN104357690B (en) | The preparation technology of strong anti-corrosion high Mg-Al alloy plate in a kind of | |
| CN106119615B (en) | A kind of new energy resource power battery shell aluminium alloy strips and preparation method thereof | |
| CN102876940B (en) | Manufacturing method of aluminum alloy thin plate with stable performance | |
| CN104046903B (en) | Coil rod for Grade 13.9/Grade 14.9 delayed-fracture-resistant high-strength fasteners and manufacturing method thereof | |
| CN105177327A (en) | Preparation method for high-magnesium aluminum alloy O-state plate of 5XXX series | |
| CN104694800A (en) | High-strength light Al-Mg-Zn alloy | |
| CN110629083B (en) | Marine 5083 aluminum alloy plate and preparation process thereof | |
| CN109207812A (en) | A kind of curtain wall 6060 aluminum alloy plate materials and preparation method thereof | |
| CN104233129A (en) | Method for producing high-magnesium aluminum alloy sheets | |
| CN103014451B (en) | Aluminum material of zip-top two-sheet can body and production method thereof | |
| CN105525179A (en) | Preparation method for rare-earth magnesium alloy large-size high-strength forged piece | |
| CN102199724A (en) | Alloy reduced ship plate steel with yield strength of 355MPa and preparation process thereof | |
| CN104451379A (en) | High-strength low-alloy niobium-vanadium structural steel and preparation method thereof | |
| CN106636747A (en) | Manufacturing method for producing commercial pure titanium plate by adopting double annealing of heavy and medium plate mill | |
| CN104357771B (en) | Cold rolling thermal treatment process for improving bending property of aluminum magnesium alloy | |
| WO2020048539A1 (en) | Method for improving strength of aq80m magnesium alloy and prolonging strain fatigue life thereof | |
| CN105349884A (en) | Ti-contained hot-rolled and acid-pickled enameled steel strip and production method thereof | |
| CN105349925A (en) | Cold-processing technology of Al-Mg alloys at liquid nitrogen temperature region | |
| CN102965575A (en) | Ultra-fast cooling preparation method of 355MPa ship plate steel | |
| CN110714147B (en) | 6082 aluminum alloy plate for aviation and preparation process thereof | |
| CN107513649A (en) | Automobile heat insulation plate aluminum alloy plate materials and its manufacture method | |
| CN107557624A (en) | A kind of aluminium alloy container aluminium sheet and its production method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |