CN102465223A - Aluminum alloy material with ultrahigh strength, high toughness and wear resistance and preparation method thereof - Google Patents
Aluminum alloy material with ultrahigh strength, high toughness and wear resistance and preparation method thereof Download PDFInfo
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- CN102465223A CN102465223A CN2010105482426A CN201010548242A CN102465223A CN 102465223 A CN102465223 A CN 102465223A CN 2010105482426 A CN2010105482426 A CN 2010105482426A CN 201010548242 A CN201010548242 A CN 201010548242A CN 102465223 A CN102465223 A CN 102465223A
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Abstract
The invention relates to an aluminum alloy material with ultrahigh strength, high toughness and wear resistance. The aluminum alloy material comprises the following components in percentage by weight: 7-10wt% of Zn, 1.3-1.8wt% of Mg, 1.7-2.0wt% of Cu, 0.1-0.2wt% of Zr, 0.1-0.2wt% of Ni, 2.0-2.7wt% of Si and the balance of Al. The aluminum alloy material with ultrahigh strength, high toughness and wear resistance in the invention further comprises rare-earth elements, such as one or more of Y, Nd, Sr, Gd and Ce, with the additive amount of 0.01-0.05% by weight. The aluminum alloy material disclosed by the invention is prepared through spray forming, thermal-deformation processing and thermal treatment. The alloy material has ultrahigh strength, high toughness and high wear resistance and has the advantages of overcoming the technical defect that alloy is easy to wear in the prior art, and prolonging the service of equipment, thus, the alloy material can be utilized to a larger extent, and the production cost is reduced.
Description
Technical field
Originally relate to invention and a kind of duraluminum, particularly intensity at 750～800MPa or the high-strength and high ductility wear-resistant aluminum alloy material more than the 800MPa and preparation method thereof.
Background technology
Duraluminum has low, the easy processing of proportion, low cost and other advantages as most typical light material in the metallic substance, is a kind of dual-use material of key always.
Al-Zn-Mg-Cu is that alloy is the typical case's representative in the high-strength/tenacity aluminum alloy, and this alloy series is the one type of high-strength/tenacity aluminum alloy material that uses material to develop and grow up as background with aerospace in the world the sixties in 20th century.Since the seventies; Industrially developed country is through continuing to optimize design of alloy, changing interpolation kind and the content of various trace elements in 7000 line aluminium alloys, the novel thermal process technology of exploitation alloy etc.; On the basis of several kinds 7000 line aluminium alloys of primary; Multiple 7000 line aluminium alloys have further been developed with better use properties; Comprise 7075,7175,7475 etc., be widely used in the manufacturing of high-strength structure part in fuselage, wing shell, spar, cabin wallboard, aircraft and the rocket of various aircrafts.In the process of the various 7000 line aluminium alloy product innovations of exploitation; The researcher of countries in the world is all found: through improving the content of Zn element in 7000 line aluminium alloys; Can improve the over-all properties of alloy effectively; Under this thought guidance, industrially developed country has developed 7049,7050,7076,7178 etc. in succession and has had 7000 line aluminium alloys of higher Zn content, and combines the improvement of continuing to optimize to conventional cast and deformation processing, subsequent heat treatment technology; Make the UTS scope of 7000 line aluminium alloys be increased to 630～680MPa from 500 early stage～580MPa, plasticity, fracture toughness property and the corrosion resistance nature of material also are improved simultaneously.But because along with the Zn content in 7000 line aluminium alloys increases, the hot cracking tendency in macrosegregation in the material and the ingot casting process strengthens, the final use properties of lumber recovery when badly influencing ingot casting and material,
Therefore when adopting conventional cast and deformation processing technique to produce 7000 line aluminium alloys, containing the Zn amount and generally can not surpass 8wt% in the material.Till the end of the seventies,, cause the UTS of this type alloy to be difficult to break through this high point of 700MPa owing to do not having breakthrough aspect preparation, shaping and the Study on Processing Technology exploitation of 7000 line aluminium alloys in the world.
At the nineties initial stage,, make that the strong 7000 line aluminium alloy materials of superelevation and the product of the various practicability of preparation have become reality on industrial scale along with rapid solidification/powder metallurgical technique of new generation especially spray forming technology trend is extensive practical.Aspect 7000 line aluminium alloys; With the U.S., Japan, Britain, Germany, France, Italy is that the industrially developed country of representative all adopts flash set technology to succeed in developing in the early 1990s to contain the strong 7000 line aluminium alloy products of superelevation of new generation more than the Zn amount 8wt%; And be used to make component in structure unit, bullet train hook, racing car and other sports equipment in the various aerospacecrafts etc., established the critical role of strong 7000 line aluminium alloys of superelevation of new generation in the light-weight high-strength material evolution.
But; Industrially developed country is improved to the UTS that reaction-injection moulding prepares the strong 7XXX line aluminium alloy of superelevation material at present; But wear resistance is unsatisfactory, make that service life of equipment is short, need frequent change, production cost is high, to defectives such as alloy raw material consumption amount are big.
Summary of the invention
The purpose of this invention is to provide a kind of UTS at 760～800MPa or the ultrahigh-intensity high-toughness wear-resistant aluminum alloy material more than the 800MPa; This novel alloy than traditional high-strength/tenacity aluminum alloy (promptly referring generally to 7XXX line aluminium alloy) intensity with the conventional cast prepared improve more than 30%, wear resisting property improves more than 37%; Thereby prolong equipment work-ing life, practice thrift alloy raw material, reduce production costs, to solve the technical problem that exists in the prior art.
Another object of the present invention provides a kind of manufacturing limit tensile strength that is applicable in 760～800MPa or the ultrahigh-intensity high-toughness wear-resistant aluminum alloy preparation methods more than the 800MPa.
For realizing above-mentioned purpose, the present invention takes following technical scheme:
The ultrahigh-intensity high-toughness wear-resistant aluminum alloy material of UTS of the present invention more than 800MPa by weight percentage; Alloying constituent is Zn 7～10wt%, Mg 1.3～1.8Wt%, Cu 1.7～2.0wt%; Zr 0.1～0.2wt%; Ni 0.1～0.2wt%, Si 2.0-2.7wt%, all the other are Al.This material microstructure is even, and crystal grain is tiny, does not have tangible microcosmic and macrosegregation phenomenon and takes place.Through appropriate heat treatment, the main mechanical property of material reaches: σ
b=760～800Mpa, σ
0.2=720～760MPa, δ
5=5～8%.
Ultrahigh-intensity high-toughness wear-resistant aluminum alloy material of the present invention is by weight percentage:
Zn is preferred 7.5～10%, and is further preferred 7.9～9.5%, is more preferably 8.2～9.2%, most preferably is 8.5～9.0%;
Mg is preferred 1.3～1.8%, and is further preferred 1.4～1.7%, is more preferably 1.2～1.5%, most preferably is 1.4～1.5%;
Cu is preferred 1.73～1.9%, and is further preferred 1.76～1.88%, is more preferably 1.78～1.87%, most preferably is 1.82～1.86%;
Zr is preferred 0.12～0.19%, and is further preferred 0.14～1.8%, is more preferably 0.16～0.17%;
Ni is preferred 0.12～0.19%, and is further preferred 0.14～1.8%, is more preferably 0.16～0.175%;
Si is preferred 2.2～2.68%, and is further preferred 2.24～2.64%, is more preferably 2.28～2.62%, most preferably is 2.4～2.56%.
Ultrahigh-intensity high-toughness wear-resistant aluminum alloy of the present invention can also comprise REE, and like among Y, Nd, Sr, Gd and the Ce one or more, its add-on is 0.01～0.05% by weight percentage.That is, ultrahigh-intensity high-toughness wear-resistant aluminum alloy material of the present invention by weight percentage, alloying constituent is Zn 7～10wt%; Mg 1.3～1.8Wt%, Cu 1.7～2.0wt%, Zr 0.1～0.2wt%; Ni 0.1～0.2wt%, Si 2.0-2.7wt%, REE 0.01～0.05wt%; Wherein, REE is one or more among Y, Nd, Sr, Gd and the Ce, and all the other are Al.
Preferably REE is Y or Ge.
Aluminum alloy materials of the present invention is processed through adopting reaction-injection moulding preparation, thermal distortion processing and thermal treatment.
The superstrength of aluminum alloy materials of the present invention: the UTS of its aluminum alloy materials can reach 760～800MPa or more than the 800MPa; The H.T. of aluminum alloy materials of the present invention: its unit elongation is 5%～8%; The wear resistance of aluminum alloy materials of the present invention: its wear resisting property improves more than 37% than the wear resisting property of traditional 7XXX line aluminium alloy.
A kind of manufacturing limit tensile strength that is applicable to of the present invention is in 760～800MPa or the ultrahigh-intensity high-toughness wear-resistant aluminum alloy preparation methods more than the 800MPa, and this method comprises the steps:
(1) by alloying constituent, by weight percentage, this alloying constituent is Zn 7～10wt%, Mg 1.3～1.8wt%; Cu1.7～2.0wt%, Zr 0.1～0.2wt%, Ni 0.1～0.2wt%, Si 2.0-2.7wt%; All the other are Al, prepare burden preparation prealloy ingot;
Or,
By alloying constituent, by weight percentage, this alloying constituent is Zn 7～10wt%, Mg 1.3～1.8wt%; Cu1.7～2.0wt%, Zr 0.1～0.2wt%, Ni 0.1～0.2wt%, Si 2.0-2.7wt%; REE 0.01～0.05wt%, wherein, REE is one or more among Y, Nd, Sr, Gd and the Ce; All the other are Al, prepare burden preparation prealloy ingot;
(2) heat up after the prefabricated ingot fusing of alloy; Adopt high purity inert gas to atomize through atomizing nozzle; Atomizing nozzle is with the frequency high-speed sweep of 7～15Hz, and atomizing pressure is 0.5～1.0Mpa, and makes water conservancy diversion mouth axis become 30～35 ° angle with the take-up reel plane;
(3) in aerosolization, take-up reel is with the velocity pull-down of 20～35mm/min, take-up reel in drop-down billet under the traction of variable-frequency motor high speed rotating, rotating speed is 60～120 commentaries on classics/min, promptly adopts tiltedly the spray vertical pulling method to process alloy pig;
(4) with alloy pig process deformation processing, be processed into required parts blank;
(5) these parts are heat-treated, be worked into the parts final size then, promptly obtain ultrahigh-intensity high-toughness wear-resistant aluminum alloy material.
The Zn that the present invention adopted, Al, Cu, Mg, Zr, Ni, Si choose technical pure Zn, industrial pure Al, electrolysis Cu, technical pure Mg, Al-Zr master alloy, Al-Ni master alloy, wear-resisting polysilicon.
High purity inert gas used in the present invention is the rare gas element of purity 99.999%.
Preferably, described high purity inert gas is argon gas or helium.Wherein, the said high-purity purity in high purity inert gas, high-purity argon gas or the high-purity helium is 99.999%.
Preferably, in the said step (2), described is that ℃ melt alloy pig induction heating to 600～850 under insulating covering agent protection with the prefabricated ingot melting process of alloy.
Preferably; In the said step (2); Described is that the prefabricated ingot of alloy is melted in induction melting furnace with the prefabricated ingot melting process of alloy; The temperature of induction melting furnace is controlled to be 720～850 ℃, and through the tundish heating of induction heating or resistive heating, the temperature of the tundish of induction heating or resistive heating is controlled to be 800～850 ℃ again; The process of said atomizing is that thrust-augmenting nozzle is induction heating or resistive heating with the thrust-augmenting nozzle of melt through cooperating with unrestricted formula airflow atomizing nozzle separate type after the fusing, and the temperature of thrust-augmenting nozzle is controlled to be 800～850 ℃.
Preferably, in the said step (4), the described process that billet is stripped off the skin is to adopt machining to strip off the skin, and is prepared into the excellent base of certain specification, and is incubated 1.0-5.0 hour down at 380～420 ℃, carries out the process of said hot extrusion or thermal forge-pressing-forming again.It is to adopt turning process, the periphery of turning billet and end face that so-called billet strips off the skin.
Preferably, in the said step (5), the described process that parts are heat-treated is to carry out single-stage or twin-stage solution treatment, makes once and the abundant Hui Rong of secondary precipitated phase, carries out ageing treatment again.
The key of this invention is design of alloy, requires each constituent content accurate, and alloying level is high, and main alloying element content is high, stresses that micro alloying element is assisted and strengthened, realizes many strengthening phases coupling and intensifying.
Another key factor of this invention is the reaction-injection moulding technology of preparing under this novel alloy condition, and the major technique details comprises following content:
Accurate for guaranteeing alloying constituent, select suitable smelting temperature for use, in fusion process, add the insulating covering agent protection simultaneously, degasification slagging-off before the cast.
In the reaction-injection moulding process, select complete unrestricted formula aerosolization nozzle for use, what adopt between thrust-augmenting nozzle and the nozzle in the course of the work is to separate fit system, so that realize the nozzle high frequency sweep.For guaranteeing higher speed of cooling, atomizing pressure is selected 0.6～1.0MPa for use.Atomizing pressure is little, and speed of cooling is low, and material microstructure is thick, and grain boundary precipitate is many; Atomizing pressure is big, and speed of cooling is high, and material microstructure is tiny, and grain boundary precipitate is few, but material density is low, and casting yield is low, therefore in the practical implementation process, selects moderate atomizing pressure for use.In the patent No. 98201214.4 " double-deck unrestricted formula airflow atomizing nozzle " patent documentations by name; Put down in writing the technology contents of relevant unrestricted formula airflow atomizing nozzle, the thrust-augmenting nozzle in the unrestricted formula atomizing nozzle is to take to separate fit system with the air-flow atomizing nozzle.Spraying tilting mechanism is to be made up of nozzle oscillation cam, nozzle oscillation push rod, rotation axis; During work; Driving mechanism drives the nozzle oscillation cam; The nozzle oscillation cam cooperates the airflow atomizing nozzle that drives in the unrestricted formula atomizing nozzle through rotation axis to scan swing by predefined pendulum angle and hunting frequency with the nozzle oscillation push rod, form atomizing cone, and metal deposition is shaped.This unrestricted formula airflow atomizing nozzle is a kind of known device.This patent has increased the substreams nozzle again and has formed double-deck unrestricted formula airflow atomizing nozzle on the basis of above-mentioned unrestricted formula airflow atomizing nozzle.The major advantage of the unrestricted formula airflow atomizing of this bilayer nozzle is: eliminated the backwash phenomenon in the metal deposition forming process, prolonged the work-ing life of airflow atomizing spray.The unrestricted formula aerosolization nozzle of in the reaction-injection moulding process, selecting for use can be above-mentioned known unrestricted formula airflow atomizing nozzle, also can be above-mentioned double-deck unrestricted formula airflow atomizing nozzle.Make the outlet of the smelting furnace of the prefabricated ingot of alloy fusing connect tundish, the outlet section of thrust-augmenting nozzle is positioned at the centre of unrestricted formula airflow atomizing nozzle, and what adopt between thrust-augmenting nozzle and the unrestricted formula airflow atomizing nozzle is to separate fit system.
Receiving trap is made up of take-up reel, back shaft, rotation traction traction motor, up-down traction electric machine, transmission rig, dynamic seal system, and take-up reel can realize high speed rotating under the traction of rotation traction traction motor and up-down traction electric machine (0～120rpm) descends (0～50mm/s) with stepless change.In the preparation process; Metal melt stream is broken into a large amount of tiny drops by the atomizing gas of high-speed flight; Under the effect of gravity and atomizing gas, be accelerated flight forward; Before atomizing droplet solidifies but also do not solidify fully, deposit in the take-up reel,, can obtain the alloy ingot blank of certain diameter through the speed of rotation and the lowering speed of control take-up reel.
In the step (4) of method of the present invention, the process of described said hot extrusion, its extrusion temperature is 360 ℃～420 ℃, be incubated 1.5～5h, and extrusion speed is 1～5m/min, and extrusion ratio reaches as high as 40: 1.
In the step (5) of method of the present invention, described with parts heat-treat comprise solution treatment and aging treatment process, the main purpose of solution treatment be make that the reaction-injection moulding preparation and the thermal distortion course of processing separate out once with the abundant Hui Rong of secondary precipitated phase.
Solution treatment can be the single-stage solid solution among the present invention, and solid solubility temperature is 465～475 ℃/3h, also can be the twin-stage solid solution, and solid solubility temperature is 435～440 ℃/5h+475～480 ℃/1h.Aging temp can adopt 120 ℃/24h of single-stage aging, also can adopt 120 ℃ of two-stage time effects/24h+180 ℃/60min.Can reach 760～800MPa or more than the 800MPa through the UTS of material after the ageing treatment.
Advantage of the present invention is:
(1) the material alloys composition is accurate, and microstructure is evenly tiny, no significant defect and macrosegregation;
(2) this material has good thermal distortion working ability;
(3) this material is through suitable thermal treatment, and the UTS of material can reach 760～800MPa or more than the 800MPa, keep higher plasticity, wear resistance simultaneously, is a kind of high performance structural material.
(4) this material has the excellent abrasion resistance ability, has prolonged the work-ing life of friction means.
Description of drawings
The alloy that Fig. 1 prepares gained for embodiment carries out the data plot of Load Friction Testing and Measuring
Embodiment
Embodiment 1:
After the prefabricated ingot of alloyage, the smelting furnace of packing into, induction heating under the insulating covering agent protection; Be warming up to 780 ℃, insulation 10min, slagging-off degasification; The temperature of tundish and the temperature of thrust-augmenting nozzle all are controlled to be 820 ℃, and the melt after the fusing through tundish and thrust-augmenting nozzle, gets into atomizing nozzle from smelting furnace; Carry out the reaction-injection moulding preparation, adopt high-purity argon gas (purity of argon gas is 99.999%) to carry out atomizing pressure 0.9Mpa.Opening rotating machine, lifting motor, is 60～120rpm with rotating speed, the high speed rotating take-up reel, and the thrust-augmenting nozzle axis becomes 35 ° of angles with the take-up reel plane, and drop-down speed is 20～30mm/min, and drop-down take-up reel directly deposits in the take-up reel atomizing droplet.Disposable continuous atomizing 120 kg novel alloy, alloying constituent is: Zn 8.8wt%, Mg 1.7wt%, Cu 1.7wt%, Zr 0.1wt%, Ni 0.1wt%, Si 2wt%, all the other are Al, prepare the novel high-strength/tenacity wear-resistant aluminum alloy of heavy 70Kg.This deposition blank is processed into the excellent base of certain specification; At 420 ℃ of insulation 2h, carry out hot extrusion processing with 25: 1 extrusion ratios, squeeze out the pole of Φ 40mm; 440～450 ℃/5h+475～480 ℃/1h solution treatment; Institution of prescription can adopt 120 ℃/24h of single-stage aging, and UTS is 765MPa, and unit elongation is 7.5% simultaneously.
Embodiment 1 ':
Suitable with the alloy method of preparation embodiment 1, but in raw material, add 0.01% rare earth element y by weight percentage again, that is, alloying constituent is: Zn 8.8wt%; Mg 1.7wt%, Cu 1.7wt%, Zr 0.1wt%; Ni 0.1wt%, Si 2wt%, Y0.01wt%; All the other are Al, and the gained tensile strength of alloys increases to 782MPa, and wear resisting property, antioxidant property all increase.
(alloying constituent is embodiment 1 ': Zn 8.8wt%, Mg 1.7wt%, Cu 1.7wt%; Zr 0.1wt%, Ni 0.1wt%, Si 2wt%; Y0.01wt%) it is as shown in Figure 1 that resulting alloy carries out the data plot of Load Friction Testing and Measuring, and Fig. 1 shows that embodiment 1 ' the used alloy not only has high intensity (782MPa); And in the load range of 8.9～35.6N, wear rate is merely 0.9～1.2 (10
-5G/m), demonstrate this alloy and have good abrasion resistance.
Embodiment 2:
After the prefabricated ingot of alloyage, the smelting furnace of packing into, induction heating under the insulating covering agent protection; Be warming up to 800 ℃, insulation 10min, slagging-off degasification; The temperature of tundish and the temperature of thrust-augmenting nozzle all are controlled to be 840 ℃, and the melt after the fusing through tundish and thrust-augmenting nozzle, gets into atomizing nozzle from smelting furnace; Carry out the reaction-injection moulding preparation, adopt high-purity argon gas (purity of argon gas is 99.999%) to carry out atomizing pressure 0.8MPa.Opening rotating machine, lifting motor, is 60～120rpm with rotating speed, the high speed rotating take-up reel, and the thrust-augmenting nozzle axis becomes 35 ° of angles with the take-up reel plane, and drop-down speed is 20～30mm/min, and drop-down take-up reel directly deposits in the take-up reel atomizing droplet.100 kilograms of novel alloys of disposable continuous atomizing, alloying constituent is: Zn 9.5wt%, Mg 1.3wt%, Cu2.0wt%; Zr 0.2wt%, Ni 0.2wt%, Si 2.6wt%, all the other are Al; Prepare the novel high-strength/tenacity wear-resistant aluminum alloy ingot of heavy 60Kg, this deposition blank is processed into the excellent base of certain specification, be incubated 2h at 400 ℃; Carry out hot extrusion processing with 39: 1 extrusion ratios, squeeze out the pole of Φ 25mm, 445～450 ℃/5h+475～480 ℃/1h solution treatment; Institution of prescription can adopt 120 ℃/24h of single-stage aging, and UTS is 785MPa, and unit elongation is 6% simultaneously.
Embodiment 2 '
Identical with the alloy method of preparation embodiment 2, but in raw material, add the REE Ge of 0.03wt% by weight percentage again, that is, alloying constituent is: Zn 9.5wt%; Mg 1.3wt%, Cu2.0wt%, Zr 0.2wt%; Ni 0.2wt%, Si 2.6wt%, 0.03wtGe%; All the other are Al, and the gained tensile strength of alloys increases to 803MPa, and wear resisting property, antioxidant property increase too.
(alloying constituent is embodiment 2 ': Zn 9.5wt%, Mg 1.3wt%, Cu2.0wt%; Zr 0.2wt%, Ni 0.2wt%, Si 2.6wt%; 0.03wtGe%, all the other are Al) to carry out the data plot of Load Friction Testing and Measuring as shown in Figure 1 for resulting alloy, and Fig. 1 shows; Embodiment 2 ' the used alloy not only has high intensity (803MPa), and in the load range of 8.9～35.6N, wear rate is merely 0.8～1.4 (10
-5G/m), demonstrate this alloy and have good abrasion resistance.
Claims (9)
1. ultrahigh-intensity high-toughness wear-resistant aluminum alloy material, it is characterized in that: by weight percentage, this alloying constituent is Zn 7～10wt%; Mg 1.3～1.8wt%, Cu 1.7～2.0wt%, Zr 0.1～0.2wt%; Ni 0.1～0.2wt%, Si 2.0～2.7wt%, all the other are Al.
2. method for preparing ultrahigh-intensity high-toughness wear-resistant aluminum alloy material, it is characterized in that: this method comprises the steps:
(1) by alloying constituent, by weight percentage, this alloying constituent is Zn 7～10wt%, Mg 1.3～1.8wt%; Cu1.7～2.0wt%, Zr 0.1～0.2wt%, Ni 0.1～0.2wt%, Si 2.0～2.7wt%; All the other are Al, prepare burden preparation prealloy ingot;
(2) heat up after the prefabricated ingot fusing of alloy; Adopt high purity inert gas to atomize through atomizing nozzle; Atomizing nozzle is with the frequency high-speed sweep of 7～15HZ, and atomizing pressure is 0.5～1.0Mpa, and makes water conservancy diversion mouth axis become 30～35 ° angle with the take-up reel plane;
(3) in aerosolization, take-up reel is with the velocity pull-down of 20～35mm/min, take-up reel in drop-down billet under the traction of variable-frequency motor high speed rotating, rotating speed is 60～120 commentaries on classics/min, promptly adopts tiltedly the spray vertical pulling method to process alloy pig;
(4) with alloy pig process deformation processing, be processed into required parts blank.
(5) this parts blank is heat-treated, be processed into final parts then, promptly obtain ultrahigh-intensity high-toughness wear-resistant aluminum alloy material.
3. the method for preparing ultrahigh-intensity high-toughness wear-resistant aluminum alloy material according to claim 2 is characterized in that: described high purity inert gas is argon gas or helium.
4. according to claim 2 or the 3 described methods that prepare ultrahigh-intensity high-toughness wear-resistant aluminum alloy material; It is characterized in that: in above-mentioned steps (2), described is that ℃ melt alloy pig induction heating to 600～850 under insulating covering agent protection with the prefabricated ingot melting process of alloy.
5. the method for preparing ultrahigh-intensity high-toughness wear-resistant aluminum alloy material according to claim 4; It is characterized in that: in above-mentioned steps (2); Described is that the prefabricated ingot of alloy is melted in induction melting furnace with the prefabricated ingot melting process of alloy; The temperature of induction melting furnace is controlled to be 720～850 ℃, and through the tundish heating of induction heating or resistive heating, the temperature of the tundish of induction heating or resistive heating is controlled to be 800～850 ℃ again; The process of said atomizing is that thrust-augmenting nozzle is induction heating or resistive heating with the thrust-augmenting nozzle of melt through cooperating with unrestricted formula airflow atomizing nozzle separate type after the fusing, and the temperature of thrust-augmenting nozzle is controlled to be 800～850 ℃.
6. the method for preparing ultrahigh-intensity high-toughness wear-resistant aluminum alloy material according to claim 5; It is characterized in that: in the described step (4); The described process that billet is stripped off the skin is to adopt machining to strip off the skin; Be prepared into the excellent base of certain specification, and be incubated 1.0-5.0 hour down, carry out the process that said hot extrusion or forge hot are pressed into shape again at 380～420 ℃.
7. the method for preparing ultrahigh-intensity high-toughness wear-resistant aluminum alloy material according to claim 6; It is characterized in that: in the described step (5); The described process that parts are heat-treated is to carry out single-stage or twin-stage solution treatment; Make once and the abundant Hui Rong of secondary precipitated phase, carry out ageing treatment again.
8. ultrahigh-intensity high-toughness wear-resistant aluminum alloy material, it is characterized in that: by weight percentage, this alloying constituent is Zn 7～10wt%; Mg 1.3～1.8wt%, Cu 1.7～2.0wt%, Zr 0.1～0.2wt%; Ni 0.1～0.2wt%, Si 2.0～2.7wt%, REE 0.01～0.05wt%; Wherein, REE is one or more among Y, Nd, Sr, Gd and the Ce, and all the other are Al.
9. ultrahigh-intensity high-toughness wear-resistant aluminum alloy material according to claim 8 is characterized in that: REE is Y or Gd.
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| CN107739926A (en) * | 2017-09-26 | 2018-02-27 | 缪彬彬 | A kind of aluminium zinc-copper magnesium alloy and its processing technology |
| CN107937774A (en) * | 2017-12-26 | 2018-04-20 | 四川欧亚高强铝业有限公司 | Corrosion-resistant extra super duralumin alloy material and production technology |
| CN109136670A (en) * | 2018-08-21 | 2019-01-04 | 中南大学 | A kind of 6XXX line aluminium alloy and preparation method thereof |
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| CN104195392A (en) * | 2014-10-03 | 2014-12-10 | 田丽 | Superhigh-intensity high-toughness wear-resistant aluminium alloy material |
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| CN106011701A (en) * | 2016-07-28 | 2016-10-12 | 吴国庆 | High-wear-resistance titanium-aluminum alloy material and preparation method thereof |
| CN106544560A (en) * | 2016-10-31 | 2017-03-29 | 宁波市佳利来机械制造有限公司 | A kind of automobile air conditioner compressor housing |
| CN106544560B (en) * | 2016-10-31 | 2018-06-05 | 宁波市佳利来机械制造有限公司 | A kind of automobile air conditioner compressor housing |
| CN107739926A (en) * | 2017-09-26 | 2018-02-27 | 缪彬彬 | A kind of aluminium zinc-copper magnesium alloy and its processing technology |
| CN107699756A (en) * | 2017-09-30 | 2018-02-16 | 广西南南铝加工有限公司 | A kind of Al Zn Mg aluminum alloy thin sheet materials and preparation method thereof |
| CN107937774A (en) * | 2017-12-26 | 2018-04-20 | 四川欧亚高强铝业有限公司 | Corrosion-resistant extra super duralumin alloy material and production technology |
| CN107937774B (en) * | 2017-12-26 | 2019-10-29 | 四川欧亚高强铝业有限公司 | Corrosion-resistant extra super duralumin alloy material and production technology |
| CN109136670A (en) * | 2018-08-21 | 2019-01-04 | 中南大学 | A kind of 6XXX line aluminium alloy and preparation method thereof |
| CN111363990A (en) * | 2020-03-25 | 2020-07-03 | 广东省工业分析检测中心 | Heat treatment method of lead-free-cutting aluminum alloy extruded bar |
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