CN105087977B - It is a kind of to be used to produce high content iron metallic addition of aluminium alloy and preparation method thereof - Google Patents
It is a kind of to be used to produce high content iron metallic addition of aluminium alloy and preparation method thereof Download PDFInfo
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 170
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 53
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title abstract description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 69
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 68
- 239000000843 powder Substances 0.000 claims abstract description 63
- 239000004411 aluminium Substances 0.000 claims abstract description 35
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 31
- 239000004094 surface-active agent Substances 0.000 claims abstract description 21
- 239000011261 inert gas Substances 0.000 claims abstract description 11
- 238000007792 addition Methods 0.000 claims description 15
- 239000011230 binding agent Substances 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 14
- 238000005303 weighing Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 12
- 238000000748 compression moulding Methods 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 8
- 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 6
- 238000001035 drying Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 230000003213 activating effect Effects 0.000 claims description 2
- 239000012190 activator Substances 0.000 claims 2
- 238000004026 adhesive bonding Methods 0.000 claims 1
- 239000007767 bonding agent Substances 0.000 claims 1
- 239000000654 additive Substances 0.000 abstract description 40
- 230000000996 additive effect Effects 0.000 abstract description 39
- 238000002844 melting Methods 0.000 abstract description 17
- 230000008018 melting Effects 0.000 abstract description 17
- 229910052751 metal Inorganic materials 0.000 abstract description 17
- 239000002184 metal Substances 0.000 abstract description 17
- 238000011084 recovery Methods 0.000 abstract description 16
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000470 constituent Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 description 26
- 229910045601 alloy Inorganic materials 0.000 description 25
- 239000000956 alloy Substances 0.000 description 25
- -1 chalybeate Substances 0.000 description 16
- 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
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 10
- 238000005275 alloying Methods 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
- 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 8
- 239000000155 melt Substances 0.000 description 8
- 238000012913 prioritisation Methods 0.000 description 8
- 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
- 238000002474 experimental method Methods 0.000 description 5
- 238000012360 testing method Methods 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
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 239000000203 mixture Substances 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
- 150000001875 compounds Chemical class 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910052748 manganese Inorganic materials 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 230000001681 protective effect Effects 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
- 240000007817 Olea europaea Species 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
- 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
- 239000004615 ingredient Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000465 moulding Methods 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
- 239000002994 raw material Substances 0.000 description 2
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 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
- 239000013065 commercial product Substances 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
- 239000003599 detergent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 235000013350 formula milk Nutrition 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 125000005456 glyceride group Chemical group 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 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
- 239000000463 material Substances 0.000 description 1
- 238000010309 melting process Methods 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
- 230000009467 reduction Effects 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
- 239000007787 solid Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000000126 substance 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
- 239000002699 waste material Substances 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 fields of aluminium alloy; it discloses a kind of for producing high content iron metallic addition of aluminium alloy and preparation method thereof; mainly pie or American football shape made of iron powder, aluminium powder, fluxing agent compacting; the iron powder, aluminium powder are crushed under inert gas protection respectively; further 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 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 is melted in the case where that can resist 670 DEG C, and it is short to melt the time, it can melt within 10 15 minutes, the rate of recovery of ferrous metal element is up to 98% or more.
Description
Technical field
The invention belongs to the additive agent fields 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 continue to develop, the development of aluminium alloy is listed in the technology given priority to, alloy
Change is a ring important 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 binding force are in molten aluminum
In diffusion velocity control.The common alloying element of aluminium alloy has：Silicon, iron, copper, iron, magnesium, iron, nickel, zinc, vanadium, iron etc..Some
Low melting point or big the alloying element such as magnesium, copper of solubility can be directly added into aluminum melt, and the alloy that most of fusing point is high
Element such as iron, nickel, manganese etc. can not be directly added, be needed the side by intermediate alloy due to too big with the fusing point gap of aluminium
Formula is added.This is because such as by iron, nickel, manganese metal molten, then temperature of smelting furnace must reach 1000 DEG C or more, and aluminium
Fusing point only has 660 DEG C, if at 1000 DEG C or more of temperature, aluminum melt can vaporize, and molten aluminum unboiled in smelting furnace exists
It is easily chemically reacted with the oxygen of surrounding, hydrogen gas and water etc. under such high temperature, forms the impurity for being difficult to remove, the aluminium of generation
The alloy content of alloy melt and actually required alloy content deviation are excessive, cannot be satisfied and want so as to cause alloy mechanical performance
It asks, results in waste of resources.
In order to avoid above-mentioned deficiency, people reduce temperature required when alloying element melting process by the way of intermediate alloy
Degree.The production technology of intermediate alloy is such：By content in the alloy refined, maximum, lower melting-point metal melts first
Change.Then higher melting-point and less content element is added, dissolves and alloy is made.When melting intermediate alloy, need to add
Add a small amount of flux protection, in order to avoid gas enters alloy, goes back part that can be removed impurity.It to be sufficiently stirred after fusing, keep ingredient uniform
Ingot casting afterwards.The intermediate alloys of some high quality needs 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 the number containing impurity or impurity content, ideal aluminium alloy is no impurity
, therefore the fewer impurity the 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, production cost height, and efficiency substantially reduces.In addition, due to
Alloying element content contained by intermediate alloy is relatively low, and when weighing calculates, intermediate alloy amount used will be larger, in order to ensure
The temperature of intermediate alloy is melted, the amount for launching intermediate alloy every time cannot be excessive, and dosage can excessively lead to the reduction of aluminum melt temperature,
Intermediate alloy can not be melted, so when producing the aluminium alloy of same model, alloying is carried out with intermediate alloy and just needs using more
Secondary a small amount of mode be added dispensing in aluminum melt, may result in this way lead to the problem of it is as follows：1, it melts needed for intermediate alloy
Overlong time；2, aluminum melt reacts with other substances such as oxygen, hydrogen, carbon, moisture in air generation for a long time
Impurity level increases, and the quality of aluminium alloy is caused to reduce；3, fusing time length can increase energy consumption, can increase scaling loss and the suction of aluminum melt
Gas.
It due to intermediate alloy above shortcomings, is gradually eliminated, people start to use metal powder in recent years
The alloying that the mode in aluminum melt is added after compression moulding into row metal is sufficiently mixed with fluxing agent.When implementation, aluminium alloy is molten
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, which is added in molten aluminum, to be melted, 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 molten aluminum, if the temperature of molten aluminum smelting furnace to be increased to the temperature of manganese, iron, chromium metal, the aluminium in smelting furnace
Liquid will gasify, therefore solution is quickly to melt the metals such as manganese, iron, chromium at a temperature of aluminium will not gasify, in order to
Reach this purpose, people have contemplated that manganese, iron, chromium powder is broken, and add fluxing agent in the powder, and fixed shape is made, i.e.,
Our usually said manganese agent, chalybeate, chromium agent, puts into when by manganese agent, chalybeate, chromium agent in molten aluminum smelting furnace, fluxing agent is in molten aluminum
In react rapidly, the heat of generation can reach whithin a period of time make the metals such as manganese, iron, chromium melt temperature, to
Reach melting.But such mode needs a large amount of fluxing agent that could realize, therefore in every piece of additive product, manganese, iron, chromium
Content only up to reach 85% or so, if by additive product manganese, iron, chromium content be increased to 90% or more,
Then the amount of corresponding fluxing agent is then reduced, and after product is added in molten aluminum, manganese, iron, chromium in additive cannot melt completely；
In addition, in order to avoid additive product is loose in transportational process, additive product is usually 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, there is following problem：1, it melts
Solution is slower, and it is usually 20min or more to melt the time, and it is long to melt the time；2, the additive that aluminum melt is added is easy to sink 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 is disperseed after iron powder on the other hand can be caused to dissolve uneven；3, closeer
Real additive product surface in fusion processes can form fine and close protective film, can not continue to melt so as to cause inside, this
Sample will make the rate of recovery relatively low, and highest is only capable of reaching 90% or so.
Invention content
Time is short the technical problem to be solved in the present invention is to provide a kind of melting, iron recovery is high for producing aluminium alloy
High content iron metallic addition.
The purpose of the present invention is to provide following base cases：A kind of high content iron metal addition for producing aluminium alloy
Agent, pie or American football shape made of mainly being suppressed by iron powder, aluminium powder, fluxing agent, the iron powder, aluminium powder are respectively in inert gas
Protection is lower broken, further includes 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%.
Technical solution of the present invention has the following advantages：
1. the content of iron powder is high in additive, at least in 90% or more, when aluminium alloy casting is molten, its main function in chalybeate
Be iron powder, so casting melt equivalent aluminium alloy when, less amount can be added in this programme, 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 product that additive density of the invention is larger, suspension can be also in aluminum melt
State will not be sunk to the bottom, and during melting, additive product can float up and down in aluminum melt, and fusing speed is accelerated, and contracts significantly
Short additive melts the time, in addition, additive is suspended in molten aluminum, and additive product can float up and down, 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 powder one
It rises so that the chance that metal powder contacts oxygen is reduced, to reduce the formation of ferrous metal and aluminum metal oxidation film；Another further aspect
Due to the polymerization of surfactant, additive product is in state loosely, but not scatters in transit, such iron
Powder and aluminium powder density after molding can be done smaller, can quickly be dissolved in aluminum melt；The factor of above-mentioned several respects is significantly
The speed for improving additive melting, shortens and melts the time, and the rate of recovery is high.
It is obtained by melting experiment, the iron powder rate of recovery of the invention can just reach 100% in 10min or so, and iron powder returns
Yield is very high.
Prioritization scheme 1, advanced optimizes base case, the iron powder 93%, aluminium powder 3%, fluxing agent 3%, surface
Activating agent 1%, the density after above-mentioned composition compression moulding are 3.7g/cm3.Inventor it is found through experiment that, said ratio and density
Additive product to melt time, iron recovery more excellent.
Prioritization scheme 2, advanced optimizes base case, further includes binder, and by mass percentage, binder accounts for
0-3%.Binder can effectively condense together iron metal powder, therefore the meticulous powder of grain size is readily formed
Agglomerating effect, it is easier to which the iron additive of compression moulding, compression moulding will not disperse because grain size is meticulous, be readily transported；Together
When in compacting, without by the excessively consolidation of iron additive pressure, additive is also plastic under smaller density.Add by additive
After entering aluminum melt, density is smaller rapidly to be melted.
Prioritization scheme 3, to advanced optimizing for prioritization scheme 2, the binder is polyanion cellulose.Inventor
It is found through experiment that when using polyanion cellulose as binder, the additive of aluminum melt, which is added, gradually to be melted from outside to inside
The phenomenon that solution is not in iron powder scaling loss.
Prioritization scheme 4, to advanced optimizing for any one of base case, prioritization scheme 1-3, after each component compression moulding
Density is 2.8-5.0g/cm3.The above-mentioned existing additive product density of density ratio is small, is easier to float on after aluminum melt is added
In aluminum melt.
Prioritization scheme 5, advanced optimizes base case, and the size distribution of the iron powder is：The iron of 325-700 mesh
Powder accounts for the 35%-40% of iron powder total content, and the iron powder of 100-325 mesh accounts for the 40%-45% of iron powder total content, the iron of 60-100 mesh
Powder accounts for the 5%-10% of iron powder total content, and the iron powder of 10-60 mesh accounts for the 0-5% of iron powder total content.The particle size range of above-mentioned iron powder
Greatly, the iron powder of 325 mesh-to 700 mesh accounts for the 35%-40% of iron powder total content, it is generally known that, granularity is smaller, easier melting, this
Size distribution in scheme can be such that additive is rapidly dissolved in aluminum melt.
It is another object of the present invention to provide base cases one：A kind of high content iron metal for producing aluminium alloy
The preparation method of additive, including (1) crushing, (2) weighing, (3) mixing, (4) compacting, (5) drying and (6) packaging, step 1
In, it is to crush under inert gas protection, 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 are distributed as 40-500 mesh；Between step 2 and 3, adds and have the following steps：Claimed according to step 2
The quality sum for expecting gained, weighs surfactant, and it is molten to prepare surfactant according to the mass percent of 0.5%-2%
Liquid；The process of step 3 mixing is to be carried out in the environment of completely cutting off air, and above-mentioned prepared surfactant solution is spilt
Enter.
The advantages of above-mentioned preparation method, is：
1. the present invention is protected when making metal powder using inert gas, metal powder surface shape can effectively prevent
At oxidation film.In addition, the process of step 3 mixing is carried out in the environment of completely cutting off air, it can effectively prevent iron powder, aluminium in this way
Powder is aoxidized.
2. surfactant formulatory forming surfactants solution is sprayed at mixture by the preparation method of the present invention
In, the content of surfactant is less, surface additive can be made to be sufficiently mixed with iron powder, aluminium powder by way of sprinkling.
Prioritization scheme 6 between step 2 and 3, is also added and is had the following steps to advanced optimizing for base case one：According to
Quality sum obtained by step 2 weighing, weighs binder, and be configured to bond according to the mass percent of 0.5%-2%
Agent solution；During step 3 mixing, also above-mentioned prepared binder solution is spilled into.Pass through sprinkling in this programme
Mode can be such that binder is sufficiently mixed with iron powder, aluminium powder.
Specific implementation mode
Surfactant of the present invention is commercial product, 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
Sour sodium etc., the fluxing agent in following embodiment select 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, and the raw material proportioning of the product of each embodiment, product index are as shown in the table：
It will be illustrated by taking embodiment 1 as an example below：
Embodiment 1
The present embodiment is used to produce the high content iron metallic addition of aluminium alloy, the olive of Φ 16mm*11mm*4mm is made
Olive is spherical, by mass percentage, iron powder 90%, aluminium powder 6%, hexafluoro sodium aluminate 3%, neopelex 1%, compacting
Density after forming is 2.8g/cm3。
Above-mentioned additive is made according to following methods：
(1) it crushes：It is protected using inert gas, ferrous metal, aluminum metal and hexafluoro sodium aluminate is protected in inert gas
It is 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 of sour sodium ranging from 40-500 mesh；
Wherein the size distribution of iron powder is that the iron powder of 325-700 mesh accounts for the 35-40% of iron powder total content, 100-325 purposes
Iron powder accounts for the 35%-45% of iron powder total content, and the iron powder of 60-100 mesh accounts for the 10%-15% of iron powder total content, the iron of 10-60 mesh
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.It is protected simultaneously using inert gas, to prevent iron powder, aluminium powder and hexafluoro sodium aluminate powder from being combined generation gold with oxygen
Belong to oxidation film, to ensure the quality of iron additive.
(2) weighing：Iron powder, aluminium powder, hexafluoro sodium aluminate powder obtained by step 1 is subjected to weighing according to following weight ratio：
Iron powder is 90%, aluminium powder 6%, hexafluoro sodium aluminate powder are 3%.
(3) neopelex solution is prepared：Quality sum obtained by step 2 weighing, according to 1% quality
Percentage preparation neopelex solution, a concentration of the 30% of the neopelex solution.
(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 obtain preliminary blended stock, and mixing process also carries out under inert gas protection.
(5) the neopelex spray solution obtained by step 3 is opened in the preliminary mixture obtained by step 4
Batch mixer is opened, sets its stirring frequency as 20-30 revs/min, mixing time is 20 minutes, you can obtains uniformly 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 is in 0.001%, then explanation is uniformly mixed, 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 metal powder spherical shape press-forming machine, uses line pressure for 10 megapascal
Pressure be pressed；The product density of compression moulding is 2.8g/cm3。
(7) product that step 6 obtains is put into drying oven dry 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 using nitrogen hydrogen-oxygen analyzer, the result of measurement is 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：Iron powder, aluminium powder, hexafluoro sodium aluminate powder obtained by step 1 is subjected to weighing according to following weight ratio：
Iron powder 98%, hexafluoro sodium aluminate powder 0.01%；
(3) neopelex solution is prepared：Quality sum obtained by step 2 weighing, according to 1.99%
Mass percent prepares neopelex solution；
(6) product density of compression moulding is 4.8g/cm3。
Embodiment 5
The present embodiment difference from Example 1 is：
(2) weighing：Iron powder, aluminium powder, hexafluoro sodium aluminate powder obtained by step 1 is 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 obtained by step 2 weighing, according to 1% quality
Percentage prepares neopelex solution.
(4) binder solution is prepared：Quality sum obtained by step 2 weighing, is prepared according to 1% mass percent
Polyanion cellulose solution, a concentration of the 20% of the binder solution.
(6) the neopelex solution and polyanion cellulose spray solution of step 3 and step 4 gained are existed
In preliminary mixture obtained by step 5, batch mixer is opened, sets its stirring frequency as 20-30 revs/min, mixing time 20
Minute, you can obtain uniformly mixed compound powder.
(7) compound powder for obtaining step 6 moves into press-forming machine, and pressure is used to be carried out for the pressure of 10-30 megapascal
Compacting, it is 2.8g/cm that density is obtained after molding3For producing the high content iron metallic addition 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 measurement is that oxygen content is less than 0.4%.
Moisture of the present invention is measured by common aqueous content test method.
The method of the present invention due to using polyanion cellulose and neopelex simultaneously, for grain size
Very thin powder is easier polymerization forming, while can reduce the bonding machine meeting of metal powder and oxygen, so that product is oxygen-containing
Amount reduces, and more further improves the quality of product of the present invention.
Experiment：
The chalybeate XF-Fe75 for choosing 3 aluminum alloy-iron additives from embodiment 1-5 respectively and buying in the market is carried out
Melt test, be respectively put into 3 for experiment graphite crucible molten aluminum calciner in, section is to each in different times
Solution in molten aluminum melting furnace is sampled, and after it is cooled to solid, is dissolved with acid, and acid used is concentrated nitric acid and dense
Degree is 50% mixed in hydrochloric acid, and the volume ratio of the two is 1:1, then use ICP detectors to measure the content of iron in solution, to
To the average recovery rate of iron, wherein the rate of recovery of iron refers to that iron powder is total in the quality that iron powder is dissolved 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, table 3 divide
It is not the melting test result 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. temperature under the same conditions, the rate of recovery of the iron of the additive of embodiment 1-5 obviously than buying in the market
The rate of recovery of chalybeate XF-Fe75 is high, and it is short to melt the time；In addition, embodiment 1 compared with other embodiment, melts time, iron
The rate of recovery is more excellent.
2. the additive in 1-5 of the embodiment of the present invention is at a temperature of 670 DEG C, iron recovery when 10-15min, that is, reachable
To 95-100%, reach when 20min or more compared with prior art for highest iron recovery, iron recovery higher, melts the time
Short
3. the minimum melting temperature of additive of the present invention can be down to 670 DEG C, 710 DEG C compared with the prior art reduce 40
DEG C, smelting furnace energy consumption is greatly saved.Therefore, chalybeate of the present invention is melted in efficient in molten aluminum, and less energy consumption is at low cost.
Claims (8)
1. a kind of high content iron metallic addition for producing aluminium alloy, mainly made of iron powder, aluminium powder, fluxing agent compacting
Pie or American football shape, it is characterised in that：The iron powder, aluminium powder are crushed under inert gas protection respectively, further include that surface is lived
Property agent, the mass percent of each component are respectively：Iron powder 90%-98%, aluminium powder 0-9.48%, fluxing agent 0.01%-5%, table
Face activating agent 0.5%-2%.
2. the high content iron metallic addition as described in claim 1 for producing aluminium alloy, it is characterised in that：The iron powder
93%, aluminium powder 3%, fluxing agent 3%, surfactant 1%.
3. the high content iron metallic addition as described in claim 1 for producing aluminium alloy, it is characterised in that：Further include gluing
Agent is tied, by mass percentage, binder accounts for 0-3%.
4. the high content iron metallic addition as claimed in claim 3 for producing aluminium alloy, it is characterised in that：The bonding
Agent is polyanion cellulose.
5. the high content iron metallic addition according to any one of claims 1-4 for producing aluminium alloy, it is characterised in that：
Density after each component compression moulding is 2.8-5.0g/cm3。
6. the high content iron metallic addition as described in claim 1 for producing aluminium alloy, it is characterised in that：The iron
The size distribution of powder is：The iron powder of 325-700 mesh accounts for the 35%-40% of iron powder total content, and the iron powder that 100- is less than 325 mesh accounts for iron
The 40%-45% of powder total content, 60- account for the 5%-10% of iron powder total content less than the iron powder of 100 mesh, and 10- is less than the iron of 60 mesh
Powder accounts for the 0-5% of iron powder total content.
7. a kind of method preparing the high content iron metallic addition described in claims 1 or 2 for producing aluminium alloy, including
(1) crushing, (2) weighing, (3) mixing, (4) compacting, (5) drying and (6) packaging, which is characterized in that
It is to crush under inert gas protection in step 1, 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；
It between step 2 and 3, adds and has the following steps, weigh surfactant according to the mass percent of 0.5%-2%, and match
Control surface activator solution；
The process of step 3 mixing is to be carried out in the environment of completely cutting off air, and above-mentioned prepared surfactant solution is spilt
Enter.
8. a kind of methods preparing claim 3 or the 4 high content iron metallic additions for being used to produce aluminium alloy, including
(1) crushing, (2) weighing, (3) mixing, (4) compacting, (5) drying and (6) packaging, which is characterized in that
It is to crush under inert gas protection in step 1, 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；
It between step 2 and 3, adds and has the following steps, weigh surfactant according to the mass percent of 0.5%-2%, and match
Control surface activator solution；
Between step 2 and 3, also adds and have the following steps：Weigh binder according to the mass percent of 0.5%-2%, and by its
It is configured to binder solution；
During step 3 mixing, also above-mentioned prepared binder solution is spilled into.
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| CN105821229A (en) * | 2016-05-27 | 2016-08-03 | 沧州市东众特种合金制造有限公司 | Preparation method for aluminum alloy additive without villiaumite and chlorine salts |
| 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 |
| CN111218575A (en) * | 2020-03-11 | 2020-06-02 | 重庆润际远东新材料科技股份有限公司 | Vanadium additive for aluminum alloy smelting and preparation method thereof |
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