CN105087975B - A kind of high-content titanium additives and preparation method thereof for producing aluminium alloy - Google Patents
A kind of high-content titanium additives and preparation method thereof for producing aluminium alloy Download PDFInfo
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- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 120
- 239000010936 titanium Substances 0.000 title claims abstract description 118
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 118
- 239000000654 additive Substances 0.000 title claims abstract description 54
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 65
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 64
- 239000000843 powder Substances 0.000 claims abstract description 60
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 38
- 239000004411 aluminium Substances 0.000 claims abstract description 35
- 239000004094 surface-active agent Substances 0.000 claims abstract description 21
- 239000011261 inert gas Substances 0.000 claims abstract description 9
- 238000005303 weighing Methods 0.000 claims description 16
- 239000011230 binding agent Substances 0.000 claims description 15
- 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
- 239000000203 mixture Substances 0.000 claims description 6
- 229920000447 polyanionic polymer Polymers 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 4
- 230000003213 activating effect Effects 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 230000004907 flux Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims 1
- 230000000996 additive effect Effects 0.000 abstract description 34
- 238000002844 melting Methods 0.000 abstract description 19
- 230000008018 melting Effects 0.000 abstract description 19
- 238000011084 recovery Methods 0.000 abstract description 17
- 239000000470 constituent Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 description 27
- 229910045601 alloy Inorganic materials 0.000 description 23
- 239000000956 alloy Substances 0.000 description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 22
- -1 chalybeate Substances 0.000 description 17
- 229910052751 metal Inorganic materials 0.000 description 14
- 239000002184 metal Substances 0.000 description 14
- 239000001301 oxygen Substances 0.000 description 12
- 229910052760 oxygen Inorganic materials 0.000 description 12
- 229910001388 sodium aluminate Inorganic materials 0.000 description 12
- 229910052742 iron Inorganic materials 0.000 description 11
- 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 10
- 229910052804 chromium Inorganic materials 0.000 description 10
- 239000011651 chromium Substances 0.000 description 10
- 239000012535 impurity Substances 0.000 description 9
- 238000012913 prioritisation Methods 0.000 description 9
- 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 7
- 238000012360 testing method Methods 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
- 238000002156 mixing Methods 0.000 description 6
- 238000002474 experimental 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
- 238000004090 dissolution Methods 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
- 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
- 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
- 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
- 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
- 238000005516 engineering process Methods 0.000 description 2
- 239000004615 ingredient 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
- 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
- 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
- 238000001035 drying Methods 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
- 239000007769 metal material Substances 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
- 238000004806 packaging method and process Methods 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
- 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
- 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
Abstract
The invention belongs to the additive agent fields of aluminium alloy; disclose a kind of high-content titanium additives and preparation method thereof for producing aluminium alloy; mainly pie or American football shape as made of titanium valve, aluminium powder, fluxing agent compacting; the titanium valve, aluminium powder are crushed under inert gas protection respectively; it further include surfactant, the mass percent of each component is respectively as follows: titanium valve 85%-95%, aluminium powder 4%-14.49%, fluxing agent 0.01%-5%, surfactant 0.5%-2%.Additive of the invention, titanium constituent content highest may be up to 95%, using titanium additives of the present invention, its melting temperature is low, and additive can melt in the aluminum melt down at 670 DEG C, and it is short to melt the time, it can melt within 10-15 minutes, the rate of recovery of titanium 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 aluminium alloy titanium additive and preparation method thereof.
Background technique
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 process.Dissolution of the alloy addition element in molten aluminum is the important of alloying
Process.The dissolution of element and its property have substantial connection, 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, 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. can not be directly added, be needed to be added by way of intermediate alloy due to too big with the fusing point gap of aluminium
Enter.This is because then temperature of smelting furnace must reach 1000 DEG C or more, and the fusing point of aluminium only has such as by iron, nickel, manganese metal molten
660 DEG C, if 1000 DEG C or more at a temperature of, aluminum melt can vaporize, and molten aluminum unboiled in smelting furnace is in such high temperature
Under easily chemically reacted with the oxygen of surrounding, hydrogen gas and water etc., 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, be unable to satisfy requirement so as to cause alloy mechanical performance, cause
The wasting 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 that maximum, lower melting-point metal melts by content in the alloy refined 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, therefore high for the quality requirements of 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, high production cost, and efficiency substantially reduces.In addition, due to
Alloying element content contained by intermediate alloy is lower, and when weighing calculates, intermediate alloy amount used will be larger, in order to guarantee
The temperature of intermediate alloy is melted, the amount for launching intermediate alloy every time cannot be excessive, and dosage excessively will lead to the reduction of aluminum melt temperature,
Intermediate alloy can not be melted, so carrying out alloying when producing the aluminium alloy of same model with intermediate alloy and just needing using more
Secondary a small amount of mode is added dispensing in aluminum melt, is will lead to needed for creating the problem that 1, fusing intermediate alloy in this way
Overlong time；2, aluminum melt reacts with other substances such as oxygen, hydrogen, carbon, moisture in atmosphere generation for a long time
Impurity level increases, and the quality of aluminium alloy is caused to reduce；3, fusing time length will increase energy consumption, will increase the scaling loss and 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 being added in aluminum melt after compression moulding carries out metal is sufficiently mixed with fluxing agent.When implementation, aluminium alloy is molten
The temperature of casting is usually 710 DEG C or so, and the alloying element big for low melting point or melting degree is directly with the shape of elemental metals powder
Formula, which is added in molten aluminum, to be melted, but the alloying element small for the high-melting-points such as manganese, iron, chromium, titanium or melting degree, elemental metals powder
End is just 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, titanium, in smelting furnace
Molten aluminum will gasify, therefore solution is quickly to melt the metals such as manganese, iron, chromium, titanium at a temperature of aluminium will not gasify
Solution, in order to achieve this goal, people have contemplated that manganese, iron, chromium, titanium valve is broken, and add fluxing agent in the powder, and be made solid
Shape shape, i.e. our usually said manganese agent, chalybeate, chromium agent, titanium agent, when molten aluminum is put into manganese agent, chalybeate, chromium agent, titanium agent
In smelting furnace, fluxing agent reacts rapidly in molten aluminum, and the heat of generation can reach whithin a period of time makes manganese, iron, chromium, titanium
The temperature that equal metals melt, to reach melting.But such mode needs a large amount of fluxing agent to be just able to achieve, therefore every piece
In additive product, manganese, iron, chromium or titanium content only up to reach 85% or so, if by additive product manganese,
The content of iron, chromium or titanium is increased to 90% or more, then the amount of corresponding fluxing agent is then reduced, after product is added in molten aluminum,
Manganese, iron, chromium or titanium in additive cannot melt completely；In addition, leading in order to avoid additive product is loose during transportation
Additive product is often pressed into the higher pie of density or spherical, density is typically larger than 5.0g/cm3, but for density
Higher additive product has following problem, by taking titanium additives as an example: 1, melt it is slower, melt the time be usually
It is long to melt the time by 20min or more；2, the additive that aluminum melt is added is easy to sink to the bottom, once sinking to the bottom, it is molten on the one hand to will lead to titanium valve
Solution speed slows down, and disperses unevenly after on the other hand will lead to titanium valve dissolution；3, more closely knit additive product is in fusion processes
Middle surface will form fine and close protective film, can not continue to melt so as to cause inside, thus the rate of recovery can be made lower, highest is only
90% or so can be reached.
Summary of the invention
Time is short the technical problem to be solved in the present invention is to provide a kind of melting, titanium recovery rate is high for producing aluminium alloy
High-content titanium additives.
The purpose of the present invention is to provide following base cases: it is a kind of for producing the high-content titanium additives of aluminium alloy,
Mainly pie or American football shape as made of titanium valve, aluminium powder, fluxing agent compacting, the titanium valve, aluminium powder are protected in inert gas respectively
Shield is lower broken, further includes surfactant, the mass percent of each component is respectively as follows: titanium valve 85%-95%, aluminium powder 4%-
14.49%, fluxing agent 0.01%-5%, surfactant 0.5%-2%.
Technical solution of the present invention has the advantage that
1. the content of titanium valve is high in additive, at least in 90% or more, when aluminium alloy casting is molten, its main function in titanium agent
Be titanium valve, so less amount can be added in this programme, reach identical effect, thus when casting molten equivalent aluminium alloy
Raw material can be saved.
2. fluxing agent is introduced as impurity, flux content used in this programme is very low, so being significantly reduced
Impurity content in aluminium alloy.
3. preparation method of the invention has used surfactant, on the one hand, surfactant has suspending effect, uses
After surfactant, even so that the biggish product of additive density of the invention, can also be in suspension 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 be contracted 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 more evenly after titanium valve dissolution；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 of metal powder contact oxygen is reduced, to reduce the formation of titanium 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 titanium
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 test, the titanium valve rate of recovery of the invention can just reach 100% in 10min or so, and titanium valve returns
Yield is very high.
Prioritization scheme 1, advanced optimizes base case, the titanium valve 90%, aluminium powder 5%, fluxing agent 3%, surface
Activating agent 2%.Inventor it is found through experiment that, it is more excellent that the additive product of said ratio melts time, titanium recovery rate.
Prioritization scheme 2, advanced optimizes base case, the titanium valve 95%, aluminium powder 4%, fluxing agent 0.1%, table
Face activating agent 0.99%.Inventor it is found through experiment that, it is more excellent that the additive product of said ratio melts time, titanium recovery rate.
Prioritization scheme 3, advanced optimizes base case, the density range after each composition compression moulding are as follows: 2.6-
3.5g/cm3.Inventor it is found through experiment that, being pressed into the additive product of above-mentioned density, to melt time, titanium recovery rate more excellent.
Prioritization scheme 4 advanced optimizes base case, 1,2,3,4 any one of prioritization scheme, further includes binder,
By mass percentage, binder accounts for 0-3%.Binder can effectively condense together titanium metal powder, therefore for
The meticulous powder of partial size is readily formed agglomerating effect, it is easier to which the titanium additives of compression moulding, compression moulding will not be because of grain
Diameter is meticulous and disperses, and is readily transported；Simultaneously in compacting, without adding under smaller density by the excessively consolidation of titanium additives pressure
Add agent also plastic.After aluminum melt is added in additive, density is smaller rapidly to be melted.
Prioritization scheme 5, to advanced optimizing for prioritization scheme 4, the binder is polyanion cellulose.Inventor
It is found through experiment that the additive that aluminum melt is added can gradually melt from outside to inside when using polyanion cellulose as binder
The phenomenon that solution is not in titanium valve scaling loss.
Prioritization scheme 5, advanced optimizes base case, the size distribution of the titanium valve are as follows: the titanium of 325-700 mesh
Powder accounts for the 35%-40% of titanium valve total content, and the titanium valve of 100-325 mesh accounts for the 40%-45% of titanium valve total content, the titanium of 60-100 mesh
Powder accounts for the 5%-10% of titanium valve total content, and the titanium valve of 10-60 mesh accounts for the 0-5% of titanium valve total content.It is well known that granularity is smaller,
Easier melting, the size distribution in this programme 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 titanium addition for producing aluminium alloy
The preparation method of agent, including (1) crushing, (2) weighing, (3) mix, (4) compacting, (5) are dry and (6) packaging, in step 1, are
It crushes under inert gas protection, the particle size range that titanium valve 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；It between step 2 and 3, adds and has the following steps: according to step 2 weighing
Resulting quality sum, weighs surfactant according to the mass percent of 0.5%-2%, and prepare surfactant solution；
The process that step 3 mixes is to carry out in the environment of completely cutting off air, and above-mentioned prepared surfactant solution is spilled into.
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 that step 3 mixes is carried out in the environment of completely cutting off air, titanium valve, aluminium can be effectively prevented in this way
Powder is oxidized.
2. surfactant formulatory forming surfactants solution is sprayed at mixture by preparation method of the invention
In, the content of surfactant is less, surface additive can be made to be sufficiently mixed with titanium valve, aluminium powder by way of sprinkling.
Prioritization scheme 7 between step 2 and 3, is also added and is had the following steps to advanced optimizing for base case one: according to
The resulting quality sum of step 2 weighing, weighs binder according to the mass percent of 0.5%-2%, and be configured to bond
Agent solution；During step 3 mixes, also above-mentioned prepared binder solution is spilled into.It can be made by way of being spilled into
Binder is sufficiently mixed with titanium valve, aluminium powder.
Specific embodiment
Surfactant of the present invention is commercial product, and classifying type not can be used.It 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.
Fluxing agent of the 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.
Shape of product of the invention can be pie, American football shape, spherical etc., and using effect of various shapes 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 titanium additives of aluminium alloy, the rugby of Φ 16mm*11mm*4mm is made
Shape, by mass percentage, titanium valve 85%, hexafluoro sodium aluminate 3%, neopelex 2%, is pressed into aluminium powder 10%
Density after shape is 2.6g/cm3。
Above-mentioned additive is made according to following methods:
(1) it crushes: being protected using inert gas, titanium, aluminum metal and hexafluoro sodium aluminate are protected in inert gas
It is crushed respectively under shield, wherein the particle size range of titanium valve is 10-700 mesh, and the particle size range of aluminium powder is 40-500 mesh, hexafluoro aluminium
The powder size range of sour sodium is 40-500 mesh；
Wherein the size distribution of titanium valve is that the titanium valve of 325-700 mesh accounts for the 35-40% of titanium valve total content, 100-325 purpose
Titanium valve accounts for the 35%-45% of titanium valve total content, and the titanium valve of 60-100 mesh accounts for the 10%-15% of titanium valve total content, the titanium of 10-60 mesh
Powder accounts for the 0-5% of titanium valve 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 titanium valve, aluminium powder and hexafluoro sodium aluminate powder from generating gold in conjunction with oxygen
Belong to oxidation film, to guarantee the quality of titanium additives.
(2) the resulting titanium valve of step 1, aluminium powder, hexafluoro sodium aluminate powder weighing: are subjected to weighing according to following weight ratio:
Titanium valve is 85%, aluminium powder 10%, hexafluoro sodium aluminate powder are 3%.
(3) neopelex solution is prepared: according to the resulting quality sum of step 2 weighing, according to 2% quality
Percentage prepares neopelex solution, and the concentration of the neopelex solution is 30%.
(4) the resulting titanium valve of step 2, aluminium powder and hexafluoro aluminic acid sodium powder are moved in batch mixer, opens batch mixer according to 20-
30 revs/min of revolving speed mixing 2 minutes, obtains preliminary blended stock, and mixing process also carries out under inert gas protection.
(5) the resulting neopelex spray solution of step 3 is opened in the resulting preliminary mixture of step 4
Batch mixer is opened, sets its stirring frequency as 20-30 revs/min, mixing time is 20 minutes, and uniformly mixed mixing can be obtained
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, and can enter step 6, otherwise continue starting batch mixer, carries out 20 minutes again
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 2.6g/cm3。
(7) product for obtaining step 6 is put into drying oven dry, so that its moisture content is lower than 0.2%.
It (8) is finished product with In Aluminium Foil Packing by the resulting high-content titanium additives of step 7.
The finished product as made from the above method carries out oxygen content test using nitrogen hydrogen-oxygen analyzer, and the result of measurement is
Oxygen content is less than 0.5%.
Embodiment 2
The present embodiment difference from preparation of Example 1 is:
(2) the resulting titanium valve of step 1, aluminium powder, hexafluoro sodium aluminate powder weighing: are subjected to weighing according to following weight ratio:
Titanium valve 90%, aluminium powder 5%, hexafluoro sodium aluminate powder 3%；
(3) neopelex solution is prepared: according to the resulting quality sum of step 2 weighing, according to 2% quality
Percentage prepares neopelex solution；
(6) product density of compression moulding is 3.0g/cm3。
Embodiment 5
This embodiment differs from embodiment 1 in that:
(2) weighing: the resulting titanium valve of step 1, aluminium powder, hexafluoro sodium aluminate powder are claimed according to following mass percent
Material: titanium valve 90%, aluminium powder 4%, hexafluoro sodium aluminate powder 4%.
(3) neopelex solution is prepared: according to the resulting quality sum of step 2 weighing, according to 1% quality
Percentage prepares neopelex solution.
(4) it prepares binder solution: according to the resulting quality sum of step 2 weighing, being prepared according to 1% mass percent
Polyanion cellulose solution, the concentration of the binder solution are 20%.
(6) step 3 and the resulting neopelex solution of step 4 and polyanion cellulose spray solution are existed
In the resulting preliminary mixture of step 5, batch mixer is opened, sets its stirring frequency as 20-30 revs/min, mixing time 20
Minute, uniformly mixed compound powder can be obtained.
(7) compound powder for obtaining step 6 moves into press-forming machine, and pressure is used to carry out for the pressure of 10-30 megapascal
Compacting, it is 3.4g/cm that density is obtained after molding3For producing the high-content titanium additives of aluminium alloy.
The finished product as made from the above method carries out oxygen content test using conventional method using nitrogen hydrogen-oxygen analyzer,
The result of measurement is oxygen content less than 0.4%.
Moisture content 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 partial 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 red sharp metal material in Wuyi choosing 3 aluminium alloy titanium additives from embodiment 1-5 respectively and buying in the market
The titanium agent (75Ti) of material Co., Ltd carries out melting test, and the molten aluminum for being respectively put into the graphite crucible that 3 are used to test melts
It solves in furnace, section is sampled the solution in each molten aluminum melting furnace in different times, will with acid after it is cooled to solid
It is dissolved, the mixed in hydrochloric acid that acid used is concentrated nitric acid and concentration is 50%, and the volume ratio of the two is 1:1, is then detected with ICP
Instrument measures the content of titanium in solution, to obtain the average recovery rate of titanium, wherein it is molten that the rate of recovery of titanium refers to that titanium valve is dissolved in aluminium
The ratio of titanium valve gross mass in intracorporal quality and additive.The rate of recovery of titanium is higher, illustrates titanium valve in the additive of unit mass
The amount of melting is more.Table 1, table 2, table 3 are the melting test result of the rate of recovery of titanium at 710 DEG C, 690 DEG C, 670 DEG C respectively,
Concrete outcome is as follows:
Table 1
Table 2
Table 3
Conclusion:
1. temperature under the same conditions, the rate of recovery of the titanium of the additive of embodiment 1-5 obviously than buying in the market
The rate of recovery of titanium agent (75Ti) is high, and it is short to melt the time.
2. additive in 1-5 of the embodiment of the present invention 670 DEG C at a temperature of, titanium recovery rate when 10-15min, that is, reachable
To 95-100%, reach when 20min or more for highest titanium recovery rate compared with prior art, titanium recovery rate is 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, titanium agent of the present invention is melted in high-efficient in molten aluminum, and less energy consumption is at low cost.
Claims (5)
1. a kind of for producing the high-content titanium additives of aluminium alloy, pie made of mainly being suppressed as titanium valve, aluminium powder, fluxing agent
Or American football shape, it is characterised in that: the titanium valve, aluminium powder are crushed under inert gas protection respectively, further include surfactant,
The mass percent of each component is respectively as follows: titanium valve 85%-95%, aluminium powder 4%-14.49%, fluxing agent 0.01%-5%, surface
Activating agent 0.5%-2%, the density range after each component compression moulding are as follows: 2.6-3.5g/cm3, the titanium additives are by with lower section
Method preparation, including (1) crushings, (2) weighing, (3) mix, (4) compacting, (5) are dry and (6) are packed, and are in inertia in step 1
It is crushed under gas shield, the particle size range that titanium valve is chosen after crushing is 10-700 mesh, and the size distribution of aluminium powder is 40-500 mesh, is helped
Flux powder size distribution is 40-500 mesh；Wherein, the size distribution of the titanium valve are as follows: the titanium valve of 325-700 mesh accounts for titanium valve
The titanium valve of the 35%-40% of total content, 100-325 mesh accounts for the 40%-45% of titanium valve total content, and the titanium valve of 60-100 mesh accounts for titanium valve
The titanium valve of the 5%-15% of total content, 10-60 mesh accounts for the 0-5% of titanium valve total content；Between step 2 and 3, following step is had additional
It is rapid: according to the resulting quality sum of step 2 weighing, to weigh surfactant according to the mass percent of 0.5%-2%, and prepare
Surfactant solution；The process that step 3 mixes is to carry out in the environment of completely cutting off air, and above-mentioned prepared surface is lived
Property agent solution is spilled into；Density range after step 4 compression moulding are as follows: 2.6-3.5g/cm3。
2. as described in claim 1 for producing the high-content titanium additives of aluminium alloy, it is characterised in that: the titanium valve
90%, aluminium powder 5%, fluxing agent 3%, surfactant 2%.
3. as claimed in claim 1 or 2 for producing the high-content titanium additives of aluminium alloy, it is characterised in that: further include gluing
Agent is tied, by mass percentage, binder accounts for 0-3%.
4. as claimed in claim 3 for producing the high-content titanium additives of aluminium alloy, it is characterised in that: the binder
For polyanion cellulose.
5. according to claim 1 for producing the high-content titanium additives of aluminium alloy, which is characterized in that step 2 and 3 it
Between, it also adds and has the following steps: according to the resulting quality sum of step 2 weighing, being weighed according to the mass percent of 0.5%-2%
Binder, and it is configured to binder solution；During step 3 mixes, also by above-mentioned prepared binder solution
It is spilled into.
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