CN105039807A - High-strength aluminum alloy profile and manufacturing technique thereof - Google Patents
High-strength aluminum alloy profile and manufacturing technique thereof Download PDFInfo
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- CN105039807A CN105039807A CN201510472525.XA CN201510472525A CN105039807A CN 105039807 A CN105039807 A CN 105039807A CN 201510472525 A CN201510472525 A CN 201510472525A CN 105039807 A CN105039807 A CN 105039807A
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Abstract
The invention discloses a high-strength aluminum alloy profile and a manufacturing technique thereof and relates to the field of aluminum alloy materials. The high-strength aluminum alloy profile is composed of, by mass, 3%-5% of magnesium, 1%-4% of silicon, 2%-4% of iron, 0.5%-1% of copper, 1.3%-1.8% of manganese, 0.1%-0.5% of strontium, 0.5%-0.8% of zirconium, 0.5%-0.8% of titanium, 2%-9% of nichrome and the balance aluminum. The invention further discloses the manufacturing technique of the high-strength aluminum alloy profile. The manufacturing technique comprises the three main steps of material preparation, smelting, and homogenization treatment and extrusion forming. Compared with a traditional technique, the manufacturing technique is simple, technical requirements can be met easily, and the strength of the manufactured aluminum alloy profile is improved; meanwhile, the properties such as the corrosion resistance and the weather fastness are improved, and thus the service life of the aluminum alloy profile in a complicated environment is prolonged.
Description
Technical field
The present invention relates to aluminum alloy materials field, particularly a kind of high-strength aluminum alloy section and manufacturing process thereof.
Background technology
Aluminium alloy extrusions has that intensity is high, lightweight, stability is strong, good corrosion resistance, plasticity-are good, deflection is little, pollution-free, nontoxic, long service life, the features such as recyclability is good, be a most widely used class non-ferrous metal structured material in industry, widely apply in Aeronautics and Astronautics, automobile, machinofacture, boats and ships, building, finishing and chemical industry.
But the aluminium alloy extrusions on existing market, manufacturing process is complicated, and product strength is lower, is placed in outside atmosphere for a long time, affects larger by external climate, yielding, and therefore, current aluminium alloy extrusions cannot meet the demand of existing market.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of high-strength aluminum alloy section and manufacturing process thereof, complicated to solve the manufacturing process caused in prior art, product strength is lower, is placed in outside atmosphere for a long time, affect larger by external climate, the above-mentioned multinomial defect such as yielding.
Realize above-mentioned purpose, the invention provides following technical scheme: a kind of high-strength aluminum alloy section, be made up of following material by mass percentage: the magnesium of 3-5%, the silicon of 1-4%, the iron of 2-4%, the copper of 0.5-1%, the manganese of 1.3-1.8%, the strontium of 0.1-0.5%, the zirconium of 0.5-0.8%, the titanium of 0.5-0.8%, the nichrome of 2-9%, all the other are aluminium.
Preferably, the content of described iron is 3 times of copper.
Preferably, be made up of: the magnesium of 3%, the silicon of 1.5%, the iron of 3%, the copper of 1%, the manganese of 1.5%, the strontium of 0.2%, the zirconium of 0.5%, the titanium of 0.5%, the nichrome of 6% following material by mass percentage, all the other are aluminium.
A manufacturing process for high-strength aluminum alloy section, comprises the following steps:
1) get the raw materials ready: calculate by formulation ratio and take furnace charge;
2) melting: the furnace charge in step (1) is added in smelting furnace, when liquation temperature reaches 740-760 DEG C, sprinkle one deck insulating covering agent to molten surface to cover, after furnace charge melts completely, claw surface scum, temperature adjustment is to 710-720 DEG C, homogeneous temperature is consistent everywhere to adopt magnetic stirrer melt 15-25min to make in molten bath, add refining agent again and refining treatment 10-15min is carried out to aluminium alloy melt, and then claw surface scum, temperature adjustment to 690 DEG C-700 DEG C of maintenance 20-30min, recycling argon gas refinery by de-gassing 10-15min, skim, after leaving standstill 20-30min, both analysis is carried out in sampling, analytical results meets alloying constituent and requires to come out of the stove cast, teeming temperature is 670-685 DEG C,
3) Homogenization Treatments and extrusion molding: the strand obtained is warmed to 450 DEG C-465 DEG C in argon gas and be incubated 2-3 hour, extrusion mould is warmed to 450 DEG C-470 DEG C and is incubated 2-2.5 hour, then strand and mould are loaded in extrusion machine, extrude with the speed of 350mm-400mm/ minute, then water-cooled process obtains extruded section.
Preferably, described step 2) in, the refining agent added is liquation weight 1.3-2%.
Preferably, described step 3) in, water-cooled treatment temp is-180 DEG C ± 25 DEG C, and soaking time is 0.5-1h.
The beneficial effect of above technical scheme is adopted to be: high-strength aluminum alloy section of the present invention, by the Optimized Matching of alloy element, improve the intensity of aluminium alloy extrusions, intensity more in the past aluminium alloy enhance at least 2 times, the technique that the manufacturing process of this high-strength aluminum alloy section is more traditional is simultaneously simple, processing requirement easily meets, the aluminium alloy extrusions produced not only increases intensity, also improve the performance such as corrodibility and weathering resistance simultaneously, and then extend the work-ing life of aluminium alloy extrusions under complex environment.
Embodiment
Embodiment 1:
A kind of high-strength aluminum alloy section, be made up of following material by mass percentage: the magnesium of 3%, the silicon of 1%, the iron of 2.4%, the copper of 0.8%, the manganese of 1.3%, the strontium of 0.1%, the zirconium of 0.5%, the titanium of 0.5%, the nichrome of 2%, all the other are aluminium.
A manufacturing process for high-strength aluminum alloy section, comprises the following steps:
1) get the raw materials ready: calculate by formulation ratio and take furnace charge;
2) melting: the furnace charge in step (1) is added in smelting furnace, when liquation temperature reaches 740 DEG C, sprinkle one deck insulating covering agent to molten surface to cover, after furnace charge melts completely, claw surface scum, temperature adjustment to 710 DEG C, homogeneous temperature is consistent everywhere to adopt magnetic stirrer melt 15min to make in molten bath, be incorporated as liquation weight 1.3% refining agent again and refining treatment 10min is carried out to aluminium alloy melt, and then claw surface scum, temperature adjustment to 700 DEG C keeps 20min, recycling argon gas refinery by de-gassing 10min, skim, after leaving standstill 20min, both analysis is carried out in sampling, analytical results meets alloying constituent and requires to come out of the stove cast, teeming temperature is 670 DEG C,
3) Homogenization Treatments and extrusion molding: the strand obtained is warmed to 450 DEG C in argon gas and be incubated 2 hours, extrusion mould is warmed to 450 DEG C and is incubated 2 hours, then strand and mould are loaded in extrusion machine, extrude with the speed of 350mm/ minute, then water-cooled process obtains extruded section, wherein water-cooled treatment temp is-205 DEG C, and soaking time is 0.5h.
Embodiment 2:
A kind of high-strength aluminum alloy section, be made up of following material by mass percentage: the magnesium of 5%, the silicon of 4%, the iron of 3%, the copper of 1%, the manganese of 1.8%, the strontium of 0.5%, the zirconium of 0.8%, the titanium of 0.8%, the nichrome of 9%, all the other are aluminium.
A manufacturing process for high-strength aluminum alloy section, comprises the following steps:
1) get the raw materials ready: calculate by formulation ratio and take furnace charge;
2) melting: the furnace charge in step (1) is added in smelting furnace, when liquation temperature reaches 760 DEG C, sprinkle one deck insulating covering agent to molten surface to cover, after furnace charge melts completely, claw surface scum, temperature adjustment to 720 DEG C, homogeneous temperature is consistent everywhere to adopt magnetic stirrer melt 25min to make in molten bath, the refining agent being incorporated as liquation weight 2% again carries out refining treatment 15min to aluminium alloy melt, and then claw surface scum, temperature adjustment to 700 DEG C keeps 30min, recycling argon gas refinery by de-gassing 15min, skim, after leaving standstill 30min, both analysis is carried out in sampling, analytical results meets alloying constituent and requires to come out of the stove cast, teeming temperature is 685 DEG C,
3) Homogenization Treatments and extrusion molding: the strand obtained is warmed to 465 DEG C in argon gas and be incubated 3 hours, extrusion mould is warmed to 470 DEG C and is incubated 2.5 hours, then strand and mould are loaded in extrusion machine, extrude with the speed of 400mm/ minute, then water-cooled process obtains extruded section, wherein, water-cooled treatment temp is-155 DEG C, and soaking time is 1h.
Embodiment 3:
A kind of high-strength aluminum alloy section, be made up of following material by mass percentage: the magnesium of 3%, the silicon of 1.5%, the iron of 3%, the copper of 1%, the manganese of 1.5%, the strontium of 0.2%, the zirconium of 0.5%, the titanium of 0.5%, the nichrome of 6%, all the other are aluminium.
A manufacturing process for high-strength aluminum alloy section, comprises the following steps:
1) get the raw materials ready: calculate by formulation ratio and take furnace charge;
2) melting: the furnace charge in step (1) is added in smelting furnace, when liquation temperature reaches 750 DEG C, sprinkle one deck insulating covering agent to molten surface to cover, after furnace charge melts completely, claw surface scum, temperature adjustment to 715 DEG C, homogeneous temperature is consistent everywhere to adopt magnetic stirrer melt 20min to make in molten bath, the refining agent being incorporated as liquation weight 2% again carries out refining treatment 12min to aluminium alloy melt, and then claw surface scum, temperature adjustment to 695 DEG C keeps 25min, recycling argon gas refinery by de-gassing 12min, skim, after leaving standstill 25min, both analysis is carried out in sampling, analytical results meets alloying constituent and requires to come out of the stove cast, teeming temperature is 677 DEG C,
3) Homogenization Treatments and extrusion molding: the strand obtained is warmed to 457 DEG C in argon gas and be incubated 2.5 hours, extrusion mould is warmed to 460 DEG C and is incubated 2.2 hours, then strand and mould are loaded in extrusion machine, extrude with the speed of 370mm/ minute, then water-cooled process obtains extruded section, wherein, water-cooled treatment temp is-180 DEG C, and soaking time is 0.7h.
After above processing step, take out the sample of aluminium alloy extrusions, test as follows:
From above data, by the Optimized Matching of alloy element, improve the intensity of aluminium alloy extrusions, intensity more in the past aluminium alloy enhance at least 2 times, the technique that the manufacturing process of this high-strength aluminum alloy section is more traditional is simultaneously simple, processing requirement easily meets, and extends the work-ing life of aluminium alloy extrusions under complex environment.
Obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (6)
1. a high-strength aluminum alloy section, it is characterized in that: be made up of following material by mass percentage: the magnesium of 3-5%, the silicon of 1-4%, the iron of 2-4%, the copper of 0.5-1%, the manganese of 1.3-1.8%, the strontium of 0.1-0.5%, the zirconium of 0.5-0.8%, the titanium of 0.5-0.8%, the nichrome of 2-9%, all the other are aluminium.
2. high-strength aluminum alloy section according to claim 1, is characterized in that: the content of described iron is 3 times of copper.
3. high-strength aluminum alloy section according to claim 1 and 2, it is characterized in that: be made up of following material by mass percentage: the magnesium of 3%, the silicon of 1.5%, the iron of 3%, the copper of 1%, the manganese of 1.5%, the strontium of 0.2%, the zirconium of 0.5%, the titanium of 0.5%, the nichrome of 6%, all the other are aluminium.
4. a manufacturing process for high-strength aluminum alloy section according to claim 1, is characterized in that: comprise the following steps:
1) get the raw materials ready: calculate by formulation ratio and take furnace charge;
2) melting: the furnace charge in step (1) is added in smelting furnace, when liquation temperature reaches 740-760 DEG C, sprinkle one deck insulating covering agent to molten surface to cover, after furnace charge melts completely, claw surface scum, temperature adjustment is to 710-720 DEG C, homogeneous temperature is consistent everywhere to adopt magnetic stirrer melt 15-25min to make in molten bath, add refining agent again and refining treatment 10-15min is carried out to aluminium alloy melt, and then claw surface scum, temperature adjustment to 690 DEG C-700 DEG C of maintenance 20-30min, recycling argon gas degasification essence 10-15min, skim, after leaving standstill 20-30min, both analysis is carried out in sampling, analytical results meets alloying constituent and requires to come out of the stove cast, teeming temperature is 670-685 DEG C,
3) Homogenization Treatments and extrusion molding: the strand obtained is warmed to 450 DEG C-465 DEG C in argon gas and be incubated 2-3 hour, extrusion mould is warmed to 450 DEG C-470 DEG C and is incubated 2-2.5 hour, then strand and mould are loaded in extrusion machine, extrude with the speed of 350mm-400mm/ minute, then water-cooled process obtains extruded section.
5. the manufacturing process of high-strength aluminum alloy section according to claim 4, is characterized in that: described step 2) in, the refining agent added is liquation weight 1.3-2%.
6. the manufacturing process of high-strength aluminum alloy section according to claim 4, is characterized in that: described step 3) in, water-cooled treatment temp is-180 DEG C ± 25 DEG C, and soaking time is 0.5-1h.
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| CN201510472525.XA CN105039807A (en) | 2015-08-04 | 2015-08-04 | High-strength aluminum alloy profile and manufacturing technique thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464525A (en) * | 2015-12-18 | 2016-04-06 | 太仓市美斯门窗有限公司 | Thermal-insulated and airtight type aluminum alloy composite door and window material |
| CN105734356A (en) * | 2016-04-27 | 2016-07-06 | 谭钰良 | Anti-corrosion aluminum alloy |
| CN109439980A (en) * | 2018-12-26 | 2019-03-08 | 溧阳福思宝高速机械有限公司 | A kind of high-strength ternary stream impeller and preparation method thereof |
| CN114807690A (en) * | 2022-04-27 | 2022-07-29 | 山东裕航特种合金装备有限公司 | Plastic aluminum lithium alloy and preparation method thereof |
-
2015
- 2015-08-04 CN CN201510472525.XA patent/CN105039807A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464525A (en) * | 2015-12-18 | 2016-04-06 | 太仓市美斯门窗有限公司 | Thermal-insulated and airtight type aluminum alloy composite door and window material |
| CN105734356A (en) * | 2016-04-27 | 2016-07-06 | 谭钰良 | Anti-corrosion aluminum alloy |
| CN109439980A (en) * | 2018-12-26 | 2019-03-08 | 溧阳福思宝高速机械有限公司 | A kind of high-strength ternary stream impeller and preparation method thereof |
| CN114807690A (en) * | 2022-04-27 | 2022-07-29 | 山东裕航特种合金装备有限公司 | Plastic aluminum lithium alloy and preparation method thereof |
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Application publication date: 20151111 |