CN103952603A - Antifatigue automobile aluminium alloy - Google Patents
Antifatigue automobile aluminium alloy Download PDFInfo
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- CN103952603A CN103952603A CN201410140054.8A CN201410140054A CN103952603A CN 103952603 A CN103952603 A CN 103952603A CN 201410140054 A CN201410140054 A CN 201410140054A CN 103952603 A CN103952603 A CN 103952603A
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Abstract
The invention discloses antifatigue automobile aluminium alloy which comprises the following elements by mass: 0.1-0.2% of V, 0.1-0.2% of Ga, 0.05-0.08% of Cr, 0.4-0.5% of Cu, 0.2-0.4% of Mg, 0.05-0.1% of Zn, 0.01-0.02% of Ho, 0.6-0.8% of Si, 0.5-0.7% of Fe, 0.03-0.06% of Nb, 0.01-0.02% of Ta, 0.04-0.08% of Sc, 0.015-0.02% of B, and the balance of Al and impurities. The aluminium alloy of the invention is obtained through a series of special processes, and thus has excellent antifatigue performance and excellent machinability.
Description
Technical field
The present invention relates to field of aluminum alloys, is exactly a kind of antifatigue aluminium alloy car.
Background technology
Aluminium alloy is a most widely used class non-ferrous metal structured material in industry, in Aeronautics and Astronautics, automobile, machinofacture, boats and ships and chemical industry, widely applies.
Cast aluminium alloy has good castability.Can select suitable alloy and suitable castmethod according to requirement and the economic benefit of the each side such as application target, part shape, dimensional precision, quantity, quality standard, mechanical property.Cast aluminium alloy is mainly used in the non-engine components such as cast engine cylinder, clutch housing, rear axle housing, steering gear housing, variator, valve actuating mechanism, lubricating oil pump, water pump, rocker arm cover, wheel, engine frame, caliper, oil cylinder and retarding disc.
Summary of the invention
The object of the present invention is to provide a kind of antifatigue aluminium alloy car.
Above-mentioned purpose realizes by following scheme:
An antifatigue aluminium alloy car, is characterized in that: its each element consists of by mass percentage: V0.1-0.2, Ga0.1-0.2, Cr0.05-0.08, Cu0.4-0.5, Mg0.2-0.4, Zn0.05-0.1, Ho0.01-0.02, Si0.6-0.8, Fe0.5-0.7, Nb0.03-0.06, Ta0.01-0.02, Sc0.04-0.08, B0.015-0.02, surplus are Al and impurity.
Described a kind of antifatigue aluminium alloy car, is characterized in that: casting technique is:
(1), according to mass percent claimed in claim 1, get a certain amount of each pure metal ingot, by demagging ingot metal, copper ingot metal, a certain amount of pure metal ingot melting at the temperature of 800-850 ℃ outside ferrous metal ingot is aluminum alloy melt, again the molten metal after melting is added in proportion to refining agent in 700-750 ℃ of holding furnace, employing high-temperature alloy steel double leaf agitator stirs 10-15 minute with the speed of 35-45 rev/min, after finishing, stirring is warming up to 830-840 ℃ of standing insulation 10-20 minute, skim, sampling analysis after skimming, after the qualified melt of composition is poured in powder by gas-atomization equipment, adopt gas atomization method that proportioning material is prepared into the spherical powdered alloy of particle diameter below 100 μ m, obtain powdered alloy,
(2) according to mass percent claimed in claim 1, getting the melting at the temperature of 800-900 ℃ of a certain amount of magnesium ingot metal, copper ingot metal, ferrous metal ingot is aluminium alloy, melt pours in powder by gas-atomization equipment, adopt gas atomization method that proportioning material is prepared into the spherical powdered alloy of particle diameter below 100 μ m, obtain powdered alloy;
(3) after step (1) gained powdered alloy and step (2) gained powdered alloy are mixed according to mass percent claimed in claim 1, at the temperature of 850-950 ℃, melting is aluminum alloy melt, again the molten metal after melting is added in proportion to refining agent in 800 ℃ of holding furnaces, carry out refining for the second time, employing high-temperature alloy steel double leaf agitator stirs 8-15 minute with the speed of 25-35 rev/min, after finishing, stirring is warming up to 850 ℃ of standing insulation 10-20 minute, skim, sampling analysis after skimming;
(4) the qualified melt of composition is covered standing after, then at 730-755 ℃, pour into a mould, obtain aluminium alloy strand, cooling after, at 280～320 ℃ of temperature, 40-45 hour is processed in overaging,
390～410 ℃ of preheatings are after 3～5 hours, then are warming up to 440-450 ℃ of preheating 1-2 hour, then are warming up to 500-550 ℃ of preheating 1-2 hour, then cool to 350-380 ℃, are incubated after 5-6 hour roll forming;
(5), rolling complete after 520～530 ℃ of salt baths process 20～40 minutes;
(6), finally by the aluminum alloy plate materials recrystallization annealing after described salt bath processing;
(7) aluminum alloy plate materials after the annealing of gained is soaked to 10-20 minute in hydrogen peroxide, after taking-up, at subzero 10-0 ℃, be incubated 20-30 minute; And then in the subzero 60 ℃ of insulation 10-20 minute of subzero 40-, then to subzero 90 ℃-subzero 120 ℃, insulation 30-40 minute, be warming up to again subzero 80 ℃ of subzero 40-, Al alloy parts is proposed to deep cooling cabinet, be placed in air and naturally rise again to room temperature, place 1-2 hour, obtain.
Described a kind of antifatigue aluminium alloy car, is characterized in that: described refining agent is made by the raw material of following weight parts: barium sulfate 1-2, salt of wormwood 3-5, sub-white corundum 3-5, sodium aluminum fluoride 3-5, calcium oxide 10-25, silicon-dioxide 4-6, potassium fluoroaluminate 1-2, SODIUMNITRATE 3-5, attapulgite 5-7;
The preparation method of described refining agent is:
(1) will after sodium aluminum fluoride, sub-white corundum, the rear mistake of attapulgite fragmentation 100-200 mesh sieve, at 600-650 ℃, calcine 2-4 hour, take out cooling after, in the hydrogen peroxide that is 10-15% in concentration, steep while stirring after 20-30 minute, refilter, with deionized water, clean, dry, grind to form sub-micron powder;
(2) will be except sodium aluminum fluoride, sub-white corundum, attapulgite after all the other raw material blendings, melting, pulverizes and adds step (1) gained sub-micron powder again, after stirring, obtains.
Beneficial effect of the present invention is: gained aluminium alloy of the present invention, through a series of special process, makes its resistance to fatigue good, excellent in workability.
Embodiment
An antifatigue aluminium alloy car, its each element consists of by mass percentage: V0.2, Ga0.2, Cr0.08, Cu0.4, Mg0.4, Zn0.05, Ho0.02, Si0.6, Fe0.5, Nb0.06, Ta0.02, Sc0.08, B0.02, surplus are Al and impurity.
Described a kind of antifatigue aluminium alloy car, casting technique is:
(1), according to mass percent claimed in claim 1, get a certain amount of each pure metal ingot, by demagging ingot metal, copper ingot metal, a certain amount of pure metal ingot melting at the temperature of 850 ℃ outside ferrous metal ingot is aluminum alloy melt, again the molten metal after melting is added in proportion to refining agent in 750 ℃ of holding furnaces, employing high-temperature alloy steel double leaf agitator stirs 15 minutes with the speed of 45 revs/min, after finishing, stirring is warming up to 840 ℃ of standing insulations 20 minutes, skim, sampling analysis after skimming, after the qualified melt of composition is poured in powder by gas-atomization equipment, adopt gas atomization method that proportioning material is prepared into the spherical powdered alloy of particle diameter below 100 μ m, obtain powdered alloy,
(2) according to mass percent claimed in claim 1, getting the melting at the temperature of 900 ℃ of a certain amount of magnesium ingot metal, copper ingot metal, ferrous metal ingot is aluminium alloy, melt pours in powder by gas-atomization equipment, adopt gas atomization method that proportioning material is prepared into the spherical powdered alloy of particle diameter below 100 μ m, obtain powdered alloy;
(3) after step (1) gained powdered alloy and step (2) gained powdered alloy are mixed according to mass percent claimed in claim 1, at the temperature of 950 ℃, melting is aluminum alloy melt, again the molten metal after melting is added in proportion to refining agent in 800 ℃ of holding furnaces, carry out refining for the second time, employing high-temperature alloy steel double leaf agitator stirs 15 minutes with the speed of 35 revs/min, after stirring finishes, be warming up to 850 ℃ of standing insulations 20 minutes, skim, sampling analysis after skimming;
(4) the qualified melt of composition is covered standing after, then at 735 ℃, pour into a mould, obtain aluminium alloy strand, cooling after, at 320 ℃ of temperature, overaging is processed 45 hours,
410 ℃ of preheatings are after 5 hours, then are warming up to 450 ℃ of preheatings 2 hours, then are warming up to 500 ℃ of preheatings 2 hours, then cool to 380 ℃, are incubated after 5 hours roll forming;
(5), rolling complete after 520 ℃ of salt baths process 40 minutes;
(6), finally by the aluminum alloy plate materials recrystallization annealing after described salt bath processing;
(7) aluminum alloy plate materials after the annealing of gained is soaked 20 minutes in hydrogen peroxide, after taking-up, at subzero 5 ℃, be incubated 30 minutes; And then in subzero 60 ℃ of insulations 15 minutes, then to subzero 90 ℃, be incubated 40 minutes, then be warming up to subzero 50 ℃, Al alloy parts is proposed to deep cooling cabinet, be placed in air and naturally rise again to room temperature, place 2 hours, obtain.
Described refining agent is made by the raw material of following weight kg: barium sulfate 2, salt of wormwood 5, sub-white corundum 5, sodium aluminum fluoride 3, calcium oxide 15, silicon-dioxide 6, potassium fluoroaluminate 2, SODIUMNITRATE 5, attapulgite 7;
The preparation method of described refining agent is:
(1) will after sodium aluminum fluoride, sub-white corundum, rear mistake 200 mesh sieves of attapulgite fragmentation, at 650 ℃, calcine 3 hours, take out cooling after, in the hydrogen peroxide that is 15% in concentration, steep while stirring after 30 minutes, refilter, with deionized water, clean, dry, grind to form sub-micron powder;
(2) will be except sodium aluminum fluoride, sub-white corundum, attapulgite after all the other raw material blendings, melting, pulverizes and adds step (1) gained sub-micron powder again, after stirring, obtains.
The aluminium alloy making is through check, and its salient features is: tensile strength 426Mpa, slip resistance 261MPa, unit elongation 14.6%.
Claims (3)
1. an antifatigue aluminium alloy car, is characterized in that: its each element consists of by mass percentage: V0.1-0.2, Ga0.1-0.2, Cr0.05-0.08, Cu0.4-0.5, Mg0.2-0.4, Zn0.05-0.1, Ho0.01-0.02, Si0.6-0.8, Fe0.5-0.7, Nb0.03-0.06, Ta0.01-0.02, Sc0.04-0.08, B0.015-0.02, surplus are Al and impurity.
2. a kind of antifatigue aluminium alloy car according to claim 1, is characterized in that: casting technique is:
(1), according to mass percent claimed in claim 1, get a certain amount of each pure metal ingot, by demagging ingot metal, copper ingot metal, a certain amount of pure metal ingot melting at the temperature of 800-850 ℃ outside ferrous metal ingot is aluminum alloy melt, again the molten metal after melting is added in proportion to refining agent in 700-750 ℃ of holding furnace, employing high-temperature alloy steel double leaf agitator stirs 10-15 minute with the speed of 35-45 rev/min, after finishing, stirring is warming up to 830-840 ℃ of standing insulation 10-20 minute, skim, sampling analysis after skimming, after the qualified melt of composition is poured in powder by gas-atomization equipment, adopt gas atomization method that proportioning material is prepared into the spherical powdered alloy of particle diameter below 100 μ m, obtain powdered alloy,
(2) according to mass percent claimed in claim 1, getting the melting at the temperature of 800-900 ℃ of a certain amount of magnesium ingot metal, copper ingot metal, ferrous metal ingot is aluminium alloy, melt pours in powder by gas-atomization equipment, adopt gas atomization method that proportioning material is prepared into the spherical powdered alloy of particle diameter below 100 μ m, obtain powdered alloy;
(3) after step (1) gained powdered alloy and step (2) gained powdered alloy are mixed according to mass percent claimed in claim 1, at the temperature of 850-950 ℃, melting is aluminum alloy melt, again the molten metal after melting is added in proportion to refining agent in 800 ℃ of holding furnaces, carry out refining for the second time, employing high-temperature alloy steel double leaf agitator stirs 8-15 minute with the speed of 25-35 rev/min, after finishing, stirring is warming up to 850 ℃ of standing insulation 10-20 minute, skim, sampling analysis after skimming;
(4) the qualified melt of composition is covered standing after, then at 730-755 ℃, pour into a mould, obtain aluminium alloy strand, cooling after, at 280～320 ℃ of temperature, 40-45 hour is processed in overaging,
390～410 ℃ of preheatings are after 3～5 hours, then are warming up to 440-450 ℃ of preheating 1-2 hour, then are warming up to 500-550 ℃ of preheating 1-2 hour, then cool to 350-380 ℃, are incubated after 5-6 hour roll forming;
(5), rolling complete after 520～530 ℃ of salt baths process 20～40 minutes;
(6), finally by the aluminum alloy plate materials recrystallization annealing after described salt bath processing;
(7) aluminum alloy plate materials after the annealing of gained is soaked to 10-20 minute in hydrogen peroxide, after taking-up, at subzero 10-0 ℃, be incubated 20-30 minute; And then in the subzero 60 ℃ of insulation 10-20 minute of subzero 40-, then to subzero 90 ℃-subzero 120 ℃, insulation 30-40 minute, be warming up to again subzero 80 ℃ of subzero 40-, Al alloy parts is proposed to deep cooling cabinet, be placed in air and naturally rise again to room temperature, place 1-2 hour, obtain.
3. a kind of antifatigue aluminium alloy car according to claim 2, is characterized in that: described refining agent is made by the raw material of following weight parts: barium sulfate 1-2, salt of wormwood 3-5, sub-white corundum 3-5, sodium aluminum fluoride 3-5, calcium oxide 10-25, silicon-dioxide 4-6, potassium fluoroaluminate 1-2, SODIUMNITRATE 3-5, attapulgite 5-7;
The preparation method of described refining agent is:
(1) will after sodium aluminum fluoride, sub-white corundum, the rear mistake of attapulgite fragmentation 100-200 mesh sieve, at 600-650 ℃, calcine 2-4 hour, take out cooling after, in the hydrogen peroxide that is 10-15% in concentration, steep while stirring after 20-30 minute, refilter, with deionized water, clean, dry, grind to form sub-micron powder;
(2) will be except sodium aluminum fluoride, sub-white corundum, attapulgite after all the other raw material blendings, melting, pulverizes and adds step (1) gained sub-micron powder again, after stirring, obtains.
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| CN201410140054.8A CN103952603A (en) | 2014-04-10 | 2014-04-10 | Antifatigue automobile aluminium alloy |
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| CN201410140054.8A CN103952603A (en) | 2014-04-10 | 2014-04-10 | Antifatigue automobile aluminium alloy |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105316507A (en) * | 2015-10-21 | 2016-02-10 | 广西平果铝合金精密铸件有限公司 | Aluminum alloy refining agent containing La, Er and Zr |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1974814A (en) * | 2006-12-12 | 2007-06-06 | 苏州有色金属加工研究院 | Al-Mg-Si-Cu alloy for automobile and its production process |
| CN102978472A (en) * | 2012-11-09 | 2013-03-20 | 安徽欣意电缆有限公司 | Al-Fe-Bi-RE aluminum alloy, and preparation method and power cable thereof |
| CN103706662A (en) * | 2013-12-17 | 2014-04-09 | 芜湖万润机械有限责任公司 | Preparation method of aluminum alloy section for automobiles |
-
2014
- 2014-04-10 CN CN201410140054.8A patent/CN103952603A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1974814A (en) * | 2006-12-12 | 2007-06-06 | 苏州有色金属加工研究院 | Al-Mg-Si-Cu alloy for automobile and its production process |
| CN102978472A (en) * | 2012-11-09 | 2013-03-20 | 安徽欣意电缆有限公司 | Al-Fe-Bi-RE aluminum alloy, and preparation method and power cable thereof |
| CN103706662A (en) * | 2013-12-17 | 2014-04-09 | 芜湖万润机械有限责任公司 | Preparation method of aluminum alloy section for automobiles |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105316507A (en) * | 2015-10-21 | 2016-02-10 | 广西平果铝合金精密铸件有限公司 | Aluminum alloy refining agent containing La, Er and Zr |
| CN105316507B (en) * | 2015-10-21 | 2018-07-27 | 广西平果铝合金精密铸件有限公司 | A kind of aluminum refining agent of the zirconium of erbium containing lanthanum |
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Application publication date: 20140730 |