CN103540813A - Method for treating Yb2O3 reinforced Al-Si-Zn aluminum alloy - Google Patents
Method for treating Yb2O3 reinforced Al-Si-Zn aluminum alloy Download PDFInfo
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- CN103540813A CN103540813A CN201310442966.6A CN201310442966A CN103540813A CN 103540813 A CN103540813 A CN 103540813A CN 201310442966 A CN201310442966 A CN 201310442966A CN 103540813 A CN103540813 A CN 103540813A
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- aluminium alloy
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 40
- 229910006776 Si—Zn Inorganic materials 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 19
- FIXNOXLJNSSSLJ-UHFFFAOYSA-N ytterbium(III) oxide Inorganic materials O=[Yb]O[Yb]=O FIXNOXLJNSSSLJ-UHFFFAOYSA-N 0.000 title abstract 2
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 41
- 239000000956 alloy Substances 0.000 claims abstract description 41
- 230000008569 process Effects 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 21
- 238000009413 insulation Methods 0.000 claims description 18
- 239000011701 zinc Substances 0.000 claims description 18
- 229910052782 aluminium Inorganic materials 0.000 claims description 10
- 239000004411 aluminium Substances 0.000 claims description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 10
- 229910052725 zinc Inorganic materials 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 9
- 238000007669 thermal treatment Methods 0.000 claims description 9
- 230000032683 aging Effects 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 8
- 229910021364 Al-Si alloy Inorganic materials 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 229910052769 Ytterbium Inorganic materials 0.000 claims description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 229910052748 manganese Inorganic materials 0.000 claims description 5
- 238000002791 soaking Methods 0.000 claims description 5
- 229910018594 Si-Cu Inorganic materials 0.000 claims 4
- 229910008465 Si—Cu Inorganic materials 0.000 claims 4
- 230000000694 effects Effects 0.000 abstract description 5
- 229910001404 rare earth metal oxide Inorganic materials 0.000 abstract description 4
- 230000004048 modification Effects 0.000 abstract description 3
- 238000012986 modification Methods 0.000 abstract description 3
- 229910052761 rare earth metal Inorganic materials 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 238000005728 strengthening Methods 0.000 description 4
- 150000002910 rare earth metals Chemical class 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000005496 eutectics Effects 0.000 description 2
- 229910018125 Al-Si Inorganic materials 0.000 description 1
- 229910018520 Al—Si Inorganic materials 0.000 description 1
- 229910000676 Si alloy Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- OFLYIWITHZJFLS-UHFFFAOYSA-N [Si].[Au] Chemical compound [Si].[Au] OFLYIWITHZJFLS-UHFFFAOYSA-N 0.000 description 1
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical group [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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Abstract
The invention provides a method for treating a Yb2O3 reinforced Al-Si-Zn aluminum alloy, which consists of the steps of preparing an alloy, modifying and finally heating. According to the method, by virtue of the modification effect of rare-earth oxide on an Al-Si-Zn aluminum alloy, the tensile property of the Al-Si-Zn aluminum alloy is improved by combining the heat treatment process, and the tensile strength and ductility of an alloy can be remarkably improved.
Description
Technical field
The present invention relates to Al-Si-Zn line aluminium alloy field, specifically, relate to a kind for the treatment of process of high strength Al-Si-Zn line aluminium alloy.
Background technology
It is low that Al-Si-Zn is associated gold silicon content, has good castibility and processibility, ambient stable phase Al
2therefore Zn can be solidly soluted in alloy substrate through thermal treatment, is a kind of aluminium alloy can thermal treatment strengthening.Al-Si-Zn alloy after rotten and thermal treatment can obtain good mechanical property, is therefore more and more used in industrial machinery and equipment.And the common complex structure of industrial machinery and equipment, work under bad environment, special Working environment is had higher requirement to the performance of material, have good casting and processing characteristics, in the temperature range of room temperature and 250 ℃, to there be high tensile strength and unit elongation, preferably thermal conductivity.In order to meet these service requirementss, need to improve alloy production technique, optimized alloy becomes to assign to be optimized processing.
There are some researches show, in aluminum silicon alloy, rare earth can not only be as alterant, and can play the effect that purifies aluminium alloy.Rare-Earth Element Chemistry character is active, can with aluminium alloy in O
2, H
2, S element etc. reacts, thereby reduce air content and the sulphur content in aluminium alloy, play the effect that purifies aluminium alloy.Under certain processing condition, with rare earth, aluminum alloy melt is carried out to purifying treatment, its decontamination effect improving even surpasses conventional C
2cl
6and innocuous refining flux.Use rare earth to aluminum alloy melt degasification, operating process is simply steady, there will not be aluminium alloy boiling
The mechanical property of as cast condition Al-Si-Zn alloy is poor, therefore need to by certain means, change the microstructure morphology of alloy, to putting forward heavy alloyed mechanical property, has positive effect.This alloy is the alloy can thermal treatment strengthening, by heat-treating the Al making in alloy
2zn is solidly soluted in matrix mutually, thereby plays the effect of solution strengthening.For going bad of Al-Si eutectic structure, there is many research at present, Sr is comparatively ripe to the metamorphism research of eutectic Si, be applied at present all certain problems of existence more or less of alterant in actual production, therefore, be still necessary the alterant that continual exploitation is new.Rare earth oxide, as the more resource of a kind of China reserves, ought to more be applied, and existing research shows, rare earth element has metamorphism to Al-Si-Zn alloy.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind for the treatment of process of high strength Al-Si-Zn line aluminium alloy, use the method can obviously improve the tensile property of Al-Si-Zn line aluminium alloy.
The technical solution used in the present invention is: a kind for the treatment of process of high strength Al-Si-Zn line aluminium alloy, is characterized in that: the component that described Al-Si-Zn line aluminium alloy contains following weight per-cent: 0.1～1.0% Yb
2o
36.0～8.0% Si, 2.0～5.0% Zn, 0.10～0.30% Fe, 0.01～0.1% Cu, 0.001～0.005% Mg, 0.001～0.005% Mn, 0.001～0.005% Ti, and inevitable impurity, surplus is aluminium, and described treatment process is comprised of alloy preparation process, rotten treatment step and final heat treatment step; Be specially alloy preparation process: first, by add pure Al material and pure Zn material mixed preparing in Al-Si alloy, fusing pours into alloy plate; Rotten treatment step: the alloy plate preparing is put into resistance furnace and melt, add alterant and stir, be incubated, be poured in metal mold after slagging-off, described metal mold is carried out preheating before cast; Final heat treatment step: metal mold is being carried out to solution treatment, water-cooled after insulation, then carry out ageing treatment, after insulation, air cooling obtains product.
In described alloy preparation process, by add aluminium content in Al-Si alloy, be that the pure Zn that 99.9% pure Al material and zinc content are 99.9% expects mixed preparing, 1000～1200 ℃ of fusings, pour into alloy plate.
In described rotten treatment step, the alloy plate preparing is put into resistance furnace and melt, temperature maintains 800～1000 ℃, adds alterant and stir Al powder and Yb that described alterant is 1:3～5 by mass ratio after fusing
2o
3powder evenly mixes, and after adding, 800～900 ℃ of insulations, soaking time is 30～40min, after slagging-off, at 800～900 ℃, is poured in metal mold, and described metal mold is preheated to 100～150 ℃ before cast.
In described final heat treatment step, described metal mold is carried out to solution treatment carrying out 600～700 ℃, be incubated 8～10h, water-cooled, then carry out ageing treatment at 200～300 ℃, and being incubated 6～8h, last air cooling obtains product.
After final thermal treatment, the room temperature tensile strength of resulting Al-Si-Zn line aluminium alloy product is 350～400MPa, and unit elongation is 11～13%.
Advantage of the present invention is: by rare earth oxide Yb
2o
3metamorphism to Al-Si-Zn line aluminium alloy, in conjunction with final thermal treatment, has improved the tensile property of Al-Si-Zn line aluminium alloy, has significantly improved strength of alloy and unit elongation, has the features such as cost is low, easy and simple to handle, with short production cycle.The Al-Si-Zn line aluminium alloy of output of the present invention, as product, can be applied to the industry manufacture field such as aviation, automobile.
Embodiment
Below in conjunction with embodiment and comparative example, the present invention is described in more detail.
Embodiment 1:
The component that Al-Si-Zn line aluminium alloy contains following weight per-cent: 0.2% Yb
2o
3, 6.0% Si, 3.0% Zn, 0.10% Fe, 0.05% Cu, 0.005% Mg, 0.005% Mn, 0.001% Ti, and inevitable impurity, surplus is aluminium.First, by add aluminium content in Al-Si alloy, be that the pure Zn that 99.9% pure Al material and zinc content are 99.9% expects mixed preparing, 1000 ℃ of fusings, pour into alloy plate.Then, the alloy plate preparing is put into resistance furnace and melt, temperature maintains 800 ℃, adds alterant and stir Al powder and Yb that described alterant is 1:3 by mass ratio after fusing
2o
3powder evenly mixes, and after adding, 800 ℃ of insulations, soaking time is 30min, after slagging-off, at 800 ℃, is poured in metal mold, and metal mold is preheated to 100 ℃ before cast.Then, metal mold is carried out to solution treatment carrying out 600 ℃, insulation 8h, water-cooled, then carry out ageing treatment at 200 ℃, and insulation 6h, last air cooling obtains product.The room temperature tensile strength of resulting Al-Si-Zn line aluminium alloy product is 350MPa, and unit elongation is 11%.
Embodiment 2:
The component that Al-Si-Zn line aluminium alloy contains following weight per-cent: 0.5% Yb
2o
3, 8.0% Si, 5.0% Zn, 0.2% Fe, 0.02% Cu, 0.002% Mg, 0.001% Mn, 0.001% Ti, and inevitable impurity, surplus is aluminium.First, by add aluminium content in Al-Si alloy, be that the pure Zn that 99.9% pure Al material and zinc content are 99.9% expects mixed preparing, 1100 ℃ of fusings, pour into alloy plate.Then, the alloy plate preparing is put into resistance furnace and melt, temperature maintains 900 ℃, adds alterant and stir Al powder and Yb that described alterant is 1:4 by mass ratio after fusing
2o
3powder evenly mixes, and after adding, 800 ℃ of insulations, soaking time is 30min, after slagging-off, at 800 ℃, is poured in metal mold, and metal mold is preheated to 150 ℃ before cast.Then, metal mold is carried out to solution treatment carrying out 700 ℃, insulation 8h, water-cooled, then carry out ageing treatment at 300 ℃, and insulation 7h, last air cooling obtains product.The room temperature tensile strength of resulting Al-Si-Zn line aluminium alloy product is 400MPa, and unit elongation is 13%.
Embodiment 3:
The component that Al-Si-Zn line aluminium alloy contains following weight per-cent: 0.8% Yb
2o
3, 8.0% Si, 4.0% Zn, 0.30% Fe, 0.05% Cu, 0.001% Mg, 0.001% Mn, 0.003% Ti, and inevitable impurity, surplus is aluminium.First, by add aluminium content in Al-Si alloy, be that the pure Zn that 99.9% pure Al material and zinc content are 99.9% expects mixed preparing, 1200 ℃ of fusings, pour into alloy plate.Then, the alloy plate preparing is put into resistance furnace and melt, temperature maintains 1000 ℃, adds alterant and stir Al powder and Yb that described alterant is 1:5 by mass ratio after fusing
2o
3powder evenly mixes, and after adding, 900 ℃ of insulations, soaking time is 40min, after slagging-off, at 900 ℃, is poured in metal mold, and metal mold is preheated to 150 ℃ before cast.Then, metal mold is carried out to solution treatment carrying out 700 ℃, insulation 10h, water-cooled, then carry out ageing treatment at 300 ℃, and insulation 8h, last air cooling obtains product.The room temperature tensile strength of resulting Al-Si-Zn line aluminium alloy product is 380MPa, and unit elongation is 12%.
Comparative example 1:
By the identical Al-Si-Zn line aluminium alloy of moiety, in fusing, pour into after alloy plate, the alloy plate preparing is put into resistance furnace and melt, temperature maintains 800 ℃, after fusing, add the alterant that contains scandium bearing master alloy and stir, insulation, cast after slagging-off.Then, carry out solution treatment and ageing treatment, last air cooling obtains product.The room temperature tensile strength of resulting alloy product is only 200～250MPa, and unit elongation is only 8～10%.
Comparative example 2:
By the identical Al-Si-Zn line aluminium alloy of moiety, in fusing, pour into after alloy plate, the alloy plate preparing is put into resistance furnace and melt, temperature maintains 800 ℃, adds alterant and stirs, insulation after fusing, cast after slagging-off, and no longer carry out final thermal treatment.The room temperature tensile strength of resulting alloy product has only reached 100～150MPa, and unit elongation is only 5～8%.
By embodiment 1-3 and comparative example 1 and 2, can be found out, by utilizing according to the treatment process of a kind of high strength Al-Si-Zn line aluminium alloy of the embodiment of the present invention, select specific rare earth oxide Yb
2o
3and strictly control its content, in conjunction with thermal treatment process step and parameter, the tensile property of Al-Si-Zn line aluminium alloy be can obviously improve, and tensile strength and the unit elongation of alloy significantly improved.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: in the situation that not departing from principle of the present invention and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is limited by claim and equivalent thereof.
Claims (5)
1. a treatment process for high strength Al-Si-Zn line aluminium alloy, is characterized in that: the component that described Al-Si-Zn line aluminium alloy contains following weight per-cent: 0.1～1.0% Yb
2o
36.0～8.0% Si, 2.0～5.0% Zn, 0.10～0.30% Fe, 0.01～0.1% Cu, 0.001～0.005% Mg, 0.001～0.005% Mn, 0.001～0.005% Ti, and inevitable impurity, surplus is aluminium, and described treatment process is comprised of alloy preparation process, rotten treatment step and final heat treatment step; Be specially,
Alloy preparation process: first, by add pure Al material and pure Zn material mixed preparing in Al-Si alloy, fusing pours into alloy plate; Rotten treatment step: the alloy plate preparing is put into resistance furnace and melt, add alterant and stir, be incubated, be poured in metal mold after slagging-off, described metal mold is carried out preheating before cast; Final heat treatment step: metal mold is being carried out to solution treatment, water-cooled after insulation, then carry out ageing treatment, after insulation, air cooling obtains product.
2. the treatment process of a kind of high strength Al-Si-Cu line aluminium alloy as claimed in claim 1, it is characterized in that: in described alloy preparation process, by add aluminium content in Al-Si alloy, be that the pure Zn that 99.9% pure Al material and zinc content are 99.9% expects mixed preparing, 1000～1200 ℃ of fusings, pour into alloy plate.
3. the treatment process of a kind of high strength Al-Si-Cu line aluminium alloy as claimed in claim 1, it is characterized in that: in described rotten treatment step, the alloy plate preparing is put into resistance furnace to be melted, temperature maintains 800～1000 ℃, after fusing, add alterant and stir Al powder and Yb that described alterant is 1:3～5 by mass ratio
2o
3powder evenly mixes, and after adding, 800～900 ℃ of insulations, soaking time is 30～40min, after slagging-off, at 800～900 ℃, is poured in metal mold, and described metal mold is preheated to 100～150 ℃ before cast.
4. the treatment process of a kind of high strength Al-Si-Cu line aluminium alloy as claimed in claim 1, it is characterized in that: in described final heat treatment step, described metal mold is carried out to solution treatment carrying out 600～700 ℃, insulation 8～10h, water-cooled, at 200～300 ℃, carry out ageing treatment again, be incubated 6～8h, last air cooling obtains product.
5. the treatment process of a kind of high strength Al-Si-Cu line aluminium alloy as claimed in claim 1, is characterized in that: after final thermal treatment, the room temperature tensile strength of resulting Al-Si-Zn line aluminium alloy product is 350～400MPa, and unit elongation is 11～13%.
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| CN201310442966.6A CN103540813B (en) | 2013-09-24 | 2013-09-24 | A kind of Yb2O3The processing method of the Al-Si-Zn line aluminium alloy strengthened |
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| CN201310442966.6A CN103540813B (en) | 2013-09-24 | 2013-09-24 | A kind of Yb2O3The processing method of the Al-Si-Zn line aluminium alloy strengthened |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105088025A (en) * | 2015-08-28 | 2015-11-25 | 阜阳安固锅炉压力容器制造有限公司 | Ytterbium-oxide-reinforced scrap aluminum regeneration aluminum alloy material for cylinder cover and preparation method thereof |
| CN110423935A (en) * | 2019-08-29 | 2019-11-08 | 东北大学 | It is a kind of using rare earth oxide as the light metal composite material of reinforcement |
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| CN1936050A (en) * | 2006-10-18 | 2007-03-28 | 东华大学 | Fine grained aluminium alloy and its preparing method |
| CN101736274A (en) * | 2009-12-28 | 2010-06-16 | 无锡麟龙铝业有限公司 | Aluminum-silicon-zinc-rare earth-ferrum-manganese-chromium-containing hot dip coating alloy and method for preparing same |
| CN101935789A (en) * | 2009-11-19 | 2011-01-05 | 无锡麟龙铝业有限公司 | Hot-dipped cast aluminum alloy containing Al-Zn-Si-Mg-RE-Ti-Ni and manufacturing method thereof |
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2013
- 2013-09-24 CN CN201310442966.6A patent/CN103540813B/en active Active
Patent Citations (4)
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| CN1936050A (en) * | 2006-10-18 | 2007-03-28 | 东华大学 | Fine grained aluminium alloy and its preparing method |
| CN101935789A (en) * | 2009-11-19 | 2011-01-05 | 无锡麟龙铝业有限公司 | Hot-dipped cast aluminum alloy containing Al-Zn-Si-Mg-RE-Ti-Ni and manufacturing method thereof |
| US20110293467A1 (en) * | 2009-11-19 | 2011-12-01 | Jiangsu Linlong New Materials Co., Ltd. | Hot-Dip Cast Aluminum Alloy Containing Al-Zn-Si-Mg-RE-Ti-Ni and Preparation Method Thereof |
| CN101736274A (en) * | 2009-12-28 | 2010-06-16 | 无锡麟龙铝业有限公司 | Aluminum-silicon-zinc-rare earth-ferrum-manganese-chromium-containing hot dip coating alloy and method for preparing same |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105088025A (en) * | 2015-08-28 | 2015-11-25 | 阜阳安固锅炉压力容器制造有限公司 | Ytterbium-oxide-reinforced scrap aluminum regeneration aluminum alloy material for cylinder cover and preparation method thereof |
| CN110423935A (en) * | 2019-08-29 | 2019-11-08 | 东北大学 | It is a kind of using rare earth oxide as the light metal composite material of reinforcement |
| CN110423935B (en) * | 2019-08-29 | 2021-05-18 | 东北大学 | Light metal composite material taking rare earth oxide as reinforcement |
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