CN105087992B - It is a kind of to be used to produce high content iron additive of aluminium alloy and preparation method thereof - Google Patents
It is a kind of to be used to produce high content iron additive of aluminium alloy and preparation method thereof Download PDFInfo
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- CN105087992B CN105087992B CN201510537494.1A CN201510537494A CN105087992B CN 105087992 B CN105087992 B CN 105087992B CN 201510537494 A CN201510537494 A CN 201510537494A CN 105087992 B CN105087992 B CN 105087992B
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 145
- 239000000654 additive Substances 0.000 title claims abstract description 52
- 230000000996 additive effect Effects 0.000 title claims abstract description 51
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 48
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title abstract description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 66
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 65
- 239000000843 powder Substances 0.000 claims abstract description 52
- 239000004411 aluminium Substances 0.000 claims abstract description 47
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 34
- 239000004094 surface-active agent Substances 0.000 claims abstract description 26
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 239000011261 inert gas Substances 0.000 claims abstract description 10
- 239000011230 binding agent Substances 0.000 claims description 16
- 238000005303 weighing Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 11
- 239000001913 cellulose Substances 0.000 claims description 6
- 229920002678 cellulose Polymers 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 229920000447 polyanionic polymer Polymers 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 238000002844 melting Methods 0.000 abstract description 21
- 230000008018 melting Effects 0.000 abstract description 21
- 229910052751 metal Inorganic materials 0.000 abstract description 17
- 239000002184 metal Substances 0.000 abstract description 17
- 238000011084 recovery Methods 0.000 abstract description 17
- 239000000155 melt Substances 0.000 abstract description 7
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000470 constituent Substances 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 description 23
- 239000000956 alloy Substances 0.000 description 23
- -1 chalybeate Substances 0.000 description 18
- 239000007788 liquid Substances 0.000 description 13
- 239000001301 oxygen Substances 0.000 description 12
- 229910052760 oxygen Inorganic materials 0.000 description 12
- 229910001388 sodium aluminate Inorganic materials 0.000 description 12
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 10
- 238000005275 alloying Methods 0.000 description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 9
- 239000012535 impurity Substances 0.000 description 9
- 229910052804 chromium Inorganic materials 0.000 description 8
- 239000011651 chromium Substances 0.000 description 8
- 238000012913 prioritisation Methods 0.000 description 8
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 238000003723 Smelting Methods 0.000 description 6
- 238000005266 casting Methods 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 239000000428 dust Substances 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 238000005457 optimization Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910052748 manganese Inorganic materials 0.000 description 4
- 239000011572 manganese Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- SNRUBQQJIBEYMU-UHFFFAOYSA-N dodecane Chemical compound CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- NROKBHXJSPEDAR-UHFFFAOYSA-M potassium fluoride Chemical compound [F-].[K+] NROKBHXJSPEDAR-UHFFFAOYSA-M 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- QGHDLJAZIIFENW-UHFFFAOYSA-N 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxy-3-prop-2-enylphenyl)propan-2-yl]-2-prop-2-enylphenol Chemical group C1=C(CC=C)C(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C(CC=C)=C1 QGHDLJAZIIFENW-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 235000021355 Stearic acid Nutrition 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
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 125000005456 glyceride group Chemical group 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000001165 hydrophobic group Chemical group 0.000 description 1
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229950008882 polysorbate Drugs 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 235000003270 potassium fluoride Nutrition 0.000 description 1
- 239000011698 potassium fluoride Substances 0.000 description 1
- 235000020610 powder formula Nutrition 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 235000013024 sodium fluoride Nutrition 0.000 description 1
- 239000011775 sodium fluoride Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- MZSDGDXXBZSFTG-UHFFFAOYSA-M sodium;benzenesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C1=CC=CC=C1 MZSDGDXXBZSFTG-UHFFFAOYSA-M 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
The invention belongs to the additive agent field of aluminium alloy; disclose a kind of for producing high content iron additive of aluminium alloy and preparation method thereof; the main pie or American football shape suppressed by iron powder, aluminium powder, fluxing agent; the iron powder, aluminium powder are crushed under inert gas shielding respectively; also include surfactant, the mass percent of each component is respectively：Iron powder 90% 98%, aluminium powder 0 9.48%, fluxing agent 0.01% 5%, surfactant 0.5% 2%, the density range after above-mentioned composition is compressing is：2.8‑5.0g/cm3.The additive of the present invention, ferrous metal constituent content highest may be up to 98%, using iron additive of the present invention, its melting temperature is low, and aluminum melt temperature melts in the case where that can resist 670 DEG C, melts the time short, it can melt within 10 15 minutes, the rate of recovery of ferrous metal element is up to more than 98%.
Description
Technical field
The invention belongs to the additive agent field of aluminium alloy, and in particular to a kind of aluminum alloy-iron additive and preparation method thereof.
Background technology
As aluminium processing and aluminium alloy industry are continued to develop, the development of aluminium alloy is listed in the technology given priority to, alloy
Change is an important ring in aluminum alloy production process flow.Dissolving of the alloy addition element in molten aluminum is the important of alloying
Process.The dissolving of element has substantial connection with its property, and the destruction and atom by addition element solid-state structure adhesion are in aluminium liquid
In diffusion velocity control.The conventional alloying element of aluminium alloy has：Silicon, iron, copper, magnesium, nickel, zinc, vanadium etc..Some low melting points are molten
The big alloying element of solution degree such as magnesium, copper can be directly added into aluminum melt, and the high alloying element such as iron of most of fusing point,
Nickel, manganese etc., due to too big with the fusing point gap of aluminium, it is impossible to be directly added, it is necessary to be added by way of intermediate alloy
Enter.Because such as by iron, nickel, manganese metal molten, then temperature of smelting furnace must reach more than 1000 DEG C, and the fusing point of aluminium only has
660 DEG C, if at a temperature of more than 1000 DEG C, aluminum melt can be vaporized, and aluminium liquid unboiled in smelting furnace is in such high temperature
Under oxygen, hydrogen gas and water easily with surrounding etc. chemically react, form the impurity for being difficult to remove, the aluminium alloy melt of generation
Alloy content and actually required alloy content deviation it is excessive, so as to cause alloy mechanical performance can not meet requirement, cause
The wasting of resources.
In order to avoid above-mentioned deficiency, people's temperature required when alloying element melting process is reduced by the way of intermediate alloy
Degree.The production technology of intermediate alloy is such：Maximum first by content in the alloy the refined, metal that fusing point is relatively low melts
Change.Then the element that fusing point is higher and content is less is added, dissolves and alloy is made., it is necessary to add during melting intermediate alloy
Plus a small amount of flux protection, in order to avoid gas enters alloy, go back part that can be removed impurity.To be sufficiently stirred for after fusing, make composition uniform
Ingot casting afterwards.Some high-quality intermediate alloys need in a vacuum or melting and casting under protective atmosphere.Judge the product of aluminium alloy
The main standard of matter quality be in alloy whether containing impurity or impurity content number, preferable aluminium alloy is no impurity
, therefore impurity is more few better, thus it is high for the quality requirements of the intermediate alloy used in aluminium alloy, it is necessary in a vacuum
Or casting is burnt in melting under protective atmosphere, manufacturing condition requires high, and production cost is high, and efficiency is substantially reduced.Further, since
Alloying element content contained by intermediate alloy is relatively low, and when weighing is calculated, intermediate alloy amount used will be larger, in order to ensure
The temperature of intermediate alloy is melted, the amount that intermediate alloy is delivered every time can not be excessive, dosage can excessively cause the reduction of aluminum melt temperature,
Intermediate alloy can not be melted, so when producing the aluminium alloy of same model, alloying being carried out with intermediate alloy and is accomplished by using many
Secondary a small amount of mode is added dispensing in aluminum melt, so may result in the following problem of generation：1st, needed for fusing intermediate alloy
Overlong time；2nd, aluminum melt reacts generation with other materials such as the oxygen in air, hydrogen, carbon, moisture for a long time
Impurity level increases, and causes the quality of aluminium alloy and reduces；3rd, fusing time length can increase energy consumption, can increase scaling loss and the suction of aluminum melt
Gas.
Due to intermediate alloy above shortcomings, gradually it is eliminated, people start to use metal dust in recent years
The alloying that the compressing rear mode added in aluminum melt enters row metal is sufficiently mixed with fluxing agent.During implementation, aluminium alloy melts
The temperature of casting is usually 710 DEG C or so, for the big alloying element of low melting point or melting degree directly with the shape of elemental metals powder
Formula is added can melt in aluminium liquid, but for the small alloying element of the high-melting-points such as manganese, iron, chromium or melting degree, elemental metals powder
Just it is difficult to be melted in aluminium liquid, if the temperature of aluminium liquid smelting furnace to be increased to the aluminium in the temperature of manganese, iron, chromium metal, smelting furnace
Liquid will gasify, therefore solution is at a temperature of aluminium will not gasify, quickly to melt the metals such as manganese, iron, chromium, in order to
Reach this purpose, people have contemplated that manganese, iron, chromium powder is broken, and add fluxing agent in the powder, and solid shape is made, i.e.,
Our usually said manganese agent, chalybeate, chromium agent, puts into aluminium liquid smelting furnace, fluxing agent is in aluminium liquid when by manganese agent, chalybeate, chromium agent
In react rapidly, the heat of generation can reach within a period of time makes the temperature of the metals such as manganese, iron, chromium melting so that
Reach melting.But, such a mode needs substantial amounts of fluxing agent to realize, therefore in every piece of additive product, manganese, iron, chromium
Content only up to reach 85% or so, if the content of the manganese in additive product, iron, chromium is brought up into more than 90%,
Then the amount of corresponding fluxing agent is then reduced, after product is added in aluminium liquid, and the manganese, iron, chromium in additive can not melt completely；
In addition, in order to avoid additive product in transportation it is loose, additive product is generally pressed into the higher cake of density
Shape is spherical, and density is typically larger than 5.0g/cm3, but for the higher additive product of density, the problem of having following：1st, melt
Solution is slower, and the melting time is usually more than 20min, melts the time long；2nd, the additive for adding aluminum melt is easily sunk to the bottom, and one
Denier is sunk to the bottom, and on the one hand iron powder fusing speed can be caused to slow down, and iron powder on the other hand can be caused to disperse after dissolving uneven；3rd, it is closeer
Real additive product surface in fusion processes can form the diaphragm of densification, so that cause inside can not continue melting, this
Sample will make the rate of recovery relatively low, and highest is only capable of reaching 90% or so.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of melting time is short, iron recovery is high is used to produce aluminium alloy
High content iron additive.
It is an object of the invention to provide following base case：A kind of high content iron additive for being used to produce aluminium alloy,
The main pie or American football shape suppressed by iron powder, aluminium powder, fluxing agent, the iron powder, aluminium powder are protected in inert gas respectively
Shield is lower broken, in addition to surfactant, and the mass percent of each component is respectively：Iron powder 90%-98%, aluminium powder 0-
9.48%th, fluxing agent 0.01%-5%, surfactant 0.5%-2%, the density range after above-mentioned composition is compressing is：
2.8-5.0g/cm3。
Technical solution of the present invention has advantages below：
1. the content of iron powder is high in additive, at least more than 90%, when aluminium alloy casting is molten, its main function in chalybeate
Be iron powder, so in the molten equivalent aluminium alloy of casting, this programme can add less amount, reach identical effect, thus
Raw material can be saved.
2. fluxing agent is introduced as impurity, the flux content used in this programme is very low, so being significantly reduced
Impurity content in aluminium alloy.
3. the preparation method of the present invention has used surfactant, on the one hand, surfactant has suspending effect, uses
After surfactant so that even the larger product of additive density of the invention, suspension can be also in aluminum melt
State, will not sink to the bottom, during melting, and additive product can fluctuate in aluminum melt, and fusing speed is accelerated, and contracts significantly
Short additive melts the time, in addition, additive is suspended in aluminium liquid, and additive product can fluctuate, so can make
Disperse evenly after iron powder dissolving；On the other hand, the hydrophobic group of surfactant can be by the surface aggregate of metal dust one
Rise so that the chance of metal dust contact oxygen is reduced, so as to reduce the formation of ferrous metal and aluminum metal oxide-film；Another further aspect
Due to the polymerization of surfactant, additive product is in state loosely, but not scatters in transit, such iron
It is smaller that density after powder and aluminium powder shaping can be done, and quickly can be dissolved in aluminum melt；The factor of above-mentioned several respects is significantly
The speed of additive melting is improved, the melting time is shortened, the rate of recovery is high.
Drawn by melting experiment, the iron powder rate of recovery of the invention can just reach 100%, time of iron powder in 10min or so
Yield is very high.
Prioritization scheme 1, the further optimization to base case, the iron powder 93%, aluminium powder 3%, fluxing agent 3%, surface
Activating agent 1%, the density after above-mentioned composition is compressing is 3.7g/cm3.Inventor is through experiment discovery, said ratio and density
Additive product to melt time, iron recovery more excellent.
Prioritization scheme 2, the further optimization to base case, the iron powder 95%, aluminium powder 2%, fluxing agent 1.5%, table
Face activating agent 1.5%, the density after above-mentioned composition is compressing is 4.1g/cm3.Inventor through experiment find, said ratio and
The additive product melting time of density, iron recovery are more excellent.
Prioritization scheme 3, the further optimization to base case, the iron powder 98%, fluxing agent 0.01%, surfactant
1.99%, the density after above-mentioned composition is compressing is 4.8g/cm3.Inventor has found through experiment, and said ratio and density add
Plus to melt time, iron recovery more excellent for agent product.
Prioritization scheme 4, the further optimization to any one of base case, prioritization scheme 1,2,3,4, in addition to binding agent,
By mass percentage, binding agent accounts for 0-3%.Binding agent effectively can condense together iron metal powder, therefore for
The meticulous powder of particle diameter is readily formed agglomerating effect, it is easier to compressing, and compressing iron additive will not be because of grain
Footpath is meticulous and scattered, is readily transported；Simultaneously in compacting, without by the excessively consolidation of iron additive pressure, adding under smaller density
Plus agent is also plastic.After additive is added into aluminum melt, density is smaller rapidly to be melted.
Prioritization scheme 5, the further optimization to prioritization scheme 4, described binding agent is polyanion cellulose.Inventor
Found through experiment, during using polyanion cellulose as binding agent, adding the additive of aluminum melt can gradually melt from outside to inside
Solution, is not in the phenomenon of iron powder scaling loss.
It is another object of the present invention to provide base case one：A kind of high content iron addition for being used to produce aluminium alloy
The preparation method of agent, including (1) crushing, (2) weighing, (3) are mixed, (4) compacting, (5) are dried and (6) packaging, in step 1, are
Crushed under inert gas shielding, the particle size range that iron powder is chosen after crushing is 10-700 mesh, and the size distribution of aluminium powder is 40-
500 mesh, fluxing agent powder size is distributed as 40-500 mesh；Between step 2 and 3, set up and have the following steps：According to step 2 weighing
The quality sum of gained, weighs surfactant, and prepare surfactant solution according to 0.5%-2% mass percent；
The process that step 3 is mixed is carried out in the environment of isolation air, and will be spilled into the above-mentioned surfactant solution prepared.
The advantage of above-mentioned preparation method is：
1. the present invention is protected when making metal dust using inert gas, metal powder surface shape can be effectively prevented
Into oxide-film.In addition, the process that step 3 is mixed is carried out in the environment of isolation air, iron powder, aluminium so can be effectively prevented
Powder is oxidized.
2. surfactant formulatory forming surfactants solution is sprayed at compound by the preparation method of the present invention
In, the content of surfactant is less, by way of sprinkling surface additive can be made to be sufficiently mixed with iron powder, aluminium powder.
Prioritization scheme 7, the further optimization to base case one between step 2 and 3, is also set up and had the following steps：According to
Quality sum obtained by step 2 weighing, binding agent is weighed according to 0.5%-2% mass percent, and is configured to bond
Agent solution；During step 3 is mixed, also the above-mentioned binder solution prepared is spilled into.It can be made by way of being spilled into
Binding agent is sufficiently mixed with iron powder, aluminium powder.
Embodiment
Surfactant of the present invention is commercially available prod, and classifying type not can be used.Can be stearic acid, dodecane
Base benzene sulfonic acid sodium salt, fatty glyceride, polysorbate etc..Surfactant in following embodiment uses detergent alkylate sulphur
Sour sodium.
The fluxing agent of the present invention can be hexafluoro sodium aluminate, sodium chloride, potassium chloride, sodium fluoride, potassium fluoride, sodium sulphate, carbon
Fluxing agent in sour sodium etc., following embodiment selects hexafluoro sodium aluminate.
The shape of product of the present invention can be pie, American football shape, spherical etc., and variously-shaped using effect is identical, with
Product in lower embodiment is American football shape, the raw material proportioning of the product of each embodiment, product index such as following table institute
Show：
It will be illustrated below by taking embodiment 1 as an example：
Embodiment 1
The present embodiment is used for the high content iron additive for producing aluminium alloy, Φ 16mm*11mm*4mm rugby is made
Shape, it is by mass percentage, iron powder 90%, aluminium powder 6%, hexafluoro sodium aluminate 3%, neopelex 1%, compressing
Density afterwards is 2.8g/cm3。
Above-mentioned additive is made according to following methods：
(1) crush：Protected using inert gas, ferrous metal, aluminum metal and hexafluoro sodium aluminate are protected in inert gas
Crushed respectively under shield, wherein the particle size range of iron powder is 10-700 mesh, and the particle size range of aluminium powder is 40-500 mesh, hexafluoro aluminium
The powder size scope of sour sodium is 40-500 mesh；
Wherein the size distribution of iron powder accounts for the 35-40% of iron powder total content, the mesh of 100 mesh -325 for the iron powder of 325-700 mesh
Iron powder account for the 35%-45% of iron powder total content, the iron powder of 60-100 mesh accounts for the 10%-15% of iron powder total content, 10-60 purposes
Iron powder accounts for the 0-5% of iron powder total content；The size distribution of aluminium powder is 50-500 mesh；The powder size of hexafluoro sodium aluminate is distributed as
50-500 mesh.Protected simultaneously using inert gas, to prevent iron powder, aluminium powder and hexafluoro sodium aluminate powder from being combined generation with oxygen
Metal oxide film, so as to ensure the quality of iron additive.
(2) weighing：By the iron powder obtained by step 1, aluminium powder, hexafluoro sodium aluminate powder according to following weight than carrying out weighing：
Iron powder is that 90%, aluminium powder is 6%, hexafluoro sodium aluminate powder for 3%.
(3) neopelex solution is prepared：Quality sum according to obtained by step 2 weighing, according to 1% quality
Percentage prepares neopelex solution, and the concentration of described neopelex solution is 30%.
(4) iron powder, aluminium powder and the hexafluoro aluminic acid sodium powder obtained by step 2 are moved in batch mixer, opens batch mixer according to 20-
30 revs/min of rotating speed, batch mixing 2 minutes obtains preliminary blended stock, and mixing process is also carried out under inert gas shielding.
(5) the neopelex spray solution obtained by step 3 is opened in the preliminary compound obtained by step 4
Batch mixer is opened, its stirring frequency is set as 20-30 revs/min, mixing time is 20 minutes, you can obtain well mixed mixing
Feed powder；After this step, ingredient analysis can be carried out by extracting the sample that is mixed with of 5 different parts, if 5 testing results are inclined
Difference illustrates well mixed in 0.001%, then, you can enters step 6, otherwise continues on batch mixer, carries out 20 minutes again
Batch mixing.
(6) compound powder for obtaining step 5 moves into the spherical press-forming machine of metal dust, uses line pressure for 10 MPas
Pressure be pressed；Compressing product density is 2.8g/cm3。
(7) product that step 6 is obtained is put into drying oven and dried so that its moisture is less than 0.2%.
(8) it is finished product with In Aluminium Foil Packing by the high content iron additive obtained by step 7.
Oxygen content test will be carried out, the result of measure is using nitrogen hydrogen-oxygen analyzer by finished product made from the above method
Oxygen content is less than 0.5%.
Embodiment 2
The present embodiment difference from preparation of Example 1 is：
(2) weighing：By the iron powder obtained by step 1, aluminium powder, hexafluoro sodium aluminate powder according to following weight than carrying out weighing：
Iron powder 98%, hexafluoro sodium aluminate powder 0.01%；
(3) neopelex solution is prepared：Quality sum according to obtained by step 2 weighing, according to 1.99%
Mass percent prepares neopelex solution；
(6) compressing product density is 4.8g/cm3。
Embodiment 5
The present embodiment difference from Example 1 is：
(2) weighing：Iron powder obtained by step 1, aluminium powder, hexafluoro sodium aluminate powder are claimed according to following mass percent
Material：Iron powder 90%, aluminium powder 4%, hexafluoro sodium aluminate powder 4%.
(3) neopelex solution is prepared：Quality sum according to obtained by step 2 weighing, according to 1% quality
Percentage prepares neopelex solution.
(4) binder solution is prepared：Quality sum according to obtained by step 2 weighing, is prepared according to 1% mass percent
Polyanion cellulose solution, the concentration of described binder solution is 20%.
(6) the neopelex solution and polyanion cellulose spray solution obtained by step 3 and step 4 are existed
In preliminary compound obtained by step 5, batch mixer is opened, its stirring frequency is set as 20-30 revs/min, mixing time is 20
Minute, you can obtain well mixed compound powder.
(7) compound powder for obtaining step 6 moves into press-forming machine, uses pressure to be carried out for 10-30 MPas of pressure
Compacting, obtains density for 2.8g/cm after shaping3Be used for produce the high content iron additive of aluminium alloy.
Oxygen content test will be carried out using conventional method using nitrogen hydrogen-oxygen analyzer by finished product made from the above method,
The result of measure is that oxygen content is less than 0.4%.
Moisture of the present invention is measured by common aqueous content test method.
The inventive method due to employing polyanion cellulose and neopelex simultaneously, therefore for particle diameter
Very thin powder is easier polymerization forming, while the bonding machine meeting of metal dust and oxygen can be reduced, so that product is oxygen-containing
Amount reduction, more further improves the quality of product of the present invention.
Experiment：
The chalybeate XF-Fe75 for choosing 3 aluminum alloy-iron additives and in the market purchase from embodiment 1-5 respectively is carried out
Melt test, be respectively put into 3 be used for test graphite crucible aluminium liquid calciner in, in the different periods to each
Solution in aluminium liquid melting furnace is sampled, after it is cooled to solid, is dissolved with acid, and acid used is concentrated nitric acid and dense
The mixed in hydrochloric acid for 50% is spent, both volume ratios are 1:1, then with the content of iron in ICP detectors measurement solution, so that
To the average recovery rate of iron, wherein, it is total that the rate of recovery of iron refers to that iron powder is dissolved in iron powder in the quality in aluminum melt and additive
The ratio of quality.The rate of recovery of iron is higher, illustrates that the amount that iron powder melts in the additive of unit mass is more.Table 1, table 2,3 points of table
It is not the melting result of the test of the rate of recovery of iron at 710 DEG C, 690 DEG C, 670 DEG C, concrete outcome is as follows：
Table 1
Table 2
Table 3
Conclusion：
1. in temperature under the same conditions, the rate of recovery of the iron of embodiment 1-5 additive is substantially bought than in the market
The chalybeate XF-Fe75 rate of recovery is high, and it is short to melt the time.
2. the additive in 1-5 of the embodiment of the present invention is at a temperature of 670 DEG C, iron recovery during 10-15min is reachable
To 95-100%, reached compared with prior art during more than 20min for highest iron recovery, iron recovery is higher, melt the time
Short
3. the minimum melting temperature of additive of the present invention can as little as 670 DEG C, 710 DEG C compared to prior art reduce 40
DEG C, greatly save smelting furnace energy consumption.Therefore, chalybeate of the present invention is melted in the efficiency high in aluminium liquid, and less energy consumption, cost is low.
Claims (8)
1. a kind of high content iron additive for being used to produce aluminium alloy, the pie mainly suppressed by iron powder, aluminium powder, fluxing agent
Or American football shape, it is characterised in that：The iron powder, aluminium powder are crushed under inert gas shielding respectively, in addition to surfactant,
The mass percent of each component is respectively：Iron powder 90%-98%, aluminium powder 0-9.48%, fluxing agent 0.01%-5%, surfactant
0.5%-2%, the density range after above-mentioned composition is compressing is：2.8-5.0g/cm3。
2. the high content iron additive as claimed in claim 1 for being used to produce aluminium alloy, it is characterised in that：The iron powder 93%,
Aluminium powder 3%, fluxing agent 3%, surfactant 1%, the density after above-mentioned composition is compressing are 3.7 g/cm3。
3. the high content iron additive as claimed in claim 1 for being used to produce aluminium alloy, it is characterised in that：The iron powder 95%,
Aluminium powder 2%, fluxing agent 1.5%, surfactant 1.5%, the density after above-mentioned composition is compressing are 4.1 g/cm3。
4. the high content iron additive as claimed in claim 1 for being used to produce aluminium alloy, it is characterised in that：The iron powder 98%,
Fluxing agent 0.01%, surfactant 1.99%, the density after above-mentioned composition is compressing are 4.8g/cm3。
5. being used for as described in claim any one of 1-4 produces the high content iron additive of aluminium alloy, it is characterised in that：Also wrap
Binding agent is included, by mass percentage, binding agent accounts for 0-3%.
6. the high content iron additive as claimed in claim 5 for being used to produce aluminium alloy, it is characterised in that：Described binding agent
For polyanion cellulose.
7. a kind of prepare for the method for the high content iron additive for producing aluminium alloy described in claim any one of 1-4, including
（1）Crush,（2）Weighing,（3）Mix,（4）Compacting,（5）Dry and（6）Packaging, it is characterised in that
In step 1, crushed under inert gas shielding, the particle size range that iron powder is chosen after crushing is 10-700 mesh, aluminium powder
Size distribution is 40-500 mesh, and fluxing agent powder size is distributed as 40-500 mesh；
Between step 2 and 3, set up and have the following steps：Quality sum according to obtained by step 2 weighing, according to 0.5%-2% quality
Percentage weighs surfactant, and prepares surfactant solution；
The process that step 3 is mixed is carried out in the environment of isolation air, and by by the above-mentioned surfactant solution prepared
It is spilled into.
8. the method according to claim 7 for being used to produce the high content iron additive of aluminium alloy, it is characterised in that
Between step 2 and 3, also set up and have the following steps：Quality sum according to obtained by step 2 weighing, according to 0.5%-2% matter
Amount percentage weighs binding agent, and is configured to binder solution；
During step 3 is mixed, also the above-mentioned binder solution prepared is spilled into.
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| CN105087977B (en) * | 2015-08-28 | 2018-07-24 | 重庆润际远东新材料科技有限公司 | It is a kind of to be used to produce high content iron metallic addition of aluminium alloy and preparation method thereof |
| CN107675007A (en) * | 2017-09-29 | 2018-02-09 | 徐州轩辕铝业有限公司 | A kind of copper metal additive and its production technology for being used to produce aluminium alloy |
| CN107675006A (en) * | 2017-09-29 | 2018-02-09 | 徐州轩辕铝业有限公司 | It is a kind of to be used to produce High Contents of Magnesium metallic addition of aluminium alloy and preparation method thereof |
| CN111235416A (en) * | 2020-04-07 | 2020-06-05 | 昆明冶金研究院有限公司 | Efficient green aluminum alloy additive and preparation method and application thereof |
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|---|---|---|---|---|
| US3935004A (en) * | 1973-09-20 | 1976-01-27 | Diamond Shamrock Corporation | Addition of alloying constituents to aluminum |
| CN101381821A (en) * | 2008-09-26 | 2009-03-11 | 北京矿冶研究总院 | Flux-free aluminum alloy additive and preparation method thereof |
| CN105087977A (en) * | 2015-08-28 | 2015-11-25 | 重庆润际远东新材料科技有限公司 | High-content iron metal additive used for producing aluminum alloy and preparation method of high-content iron metal additive |
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2015
- 2015-08-28 CN CN201510537494.1A patent/CN105087992B/en active Active
Patent Citations (3)
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|---|---|---|---|---|
| US3935004A (en) * | 1973-09-20 | 1976-01-27 | Diamond Shamrock Corporation | Addition of alloying constituents to aluminum |
| CN101381821A (en) * | 2008-09-26 | 2009-03-11 | 北京矿冶研究总院 | Flux-free aluminum alloy additive and preparation method thereof |
| CN105087977A (en) * | 2015-08-28 | 2015-11-25 | 重庆润际远东新材料科技有限公司 | High-content iron metal additive used for producing aluminum alloy and preparation method of high-content iron metal additive |
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