CN117418122A - Aluminum titanium boron wire and preparation method thereof - Google Patents
Aluminum titanium boron wire and preparation method thereof Download PDFInfo
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- -1 Aluminum titanium boron Chemical compound 0.000 title claims abstract description 58
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 53
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000007788 liquid Substances 0.000 claims abstract description 37
- 238000003756 stirring Methods 0.000 claims abstract description 29
- 229910000521 B alloy Inorganic materials 0.000 claims abstract description 24
- 239000002893 slag Substances 0.000 claims abstract description 24
- 238000006243 chemical reaction Methods 0.000 claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 16
- 239000006227 byproduct Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 14
- 150000004673 fluoride salts Chemical class 0.000 claims abstract description 13
- 238000005266 casting Methods 0.000 claims abstract description 12
- IRPGOXJVTQTAAN-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropanal Chemical compound FC(F)(F)C(F)(F)C=O IRPGOXJVTQTAAN-UHFFFAOYSA-N 0.000 claims abstract description 11
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminum fluoride Inorganic materials F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 claims abstract description 11
- 238000002844 melting Methods 0.000 claims abstract description 9
- 230000008018 melting Effects 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 230000001681 protective effect Effects 0.000 claims abstract description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 27
- 229910052700 potassium Inorganic materials 0.000 claims description 27
- 239000011591 potassium Substances 0.000 claims description 27
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 12
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 12
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 9
- 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 claims description 8
- 229910052708 sodium Inorganic materials 0.000 claims description 8
- 239000011734 sodium Substances 0.000 claims description 8
- 229910052582 BN Inorganic materials 0.000 claims description 7
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 7
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 7
- 239000010446 mirabilite Substances 0.000 claims description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 238000005275 alloying Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 6
- 239000011780 sodium chloride Substances 0.000 claims description 6
- 239000001103 potassium chloride Substances 0.000 claims description 5
- 235000011164 potassium chloride Nutrition 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 239000001307 helium Substances 0.000 claims 1
- 229910052734 helium Inorganic materials 0.000 claims 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 18
- 238000010079 rubber tapping Methods 0.000 abstract description 4
- 239000012535 impurity Substances 0.000 description 11
- 229910045601 alloy Inorganic materials 0.000 description 10
- 239000000956 alloy Substances 0.000 description 10
- 238000007670 refining Methods 0.000 description 10
- 230000003749 cleanliness Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 239000010936 titanium Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 238000007872 degassing Methods 0.000 description 4
- 239000007791 liquid phase Substances 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000003064 anti-oxidating effect Effects 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000007133 aluminothermic reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 229910001634 calcium fluoride Inorganic materials 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
- B22D11/003—Aluminium alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/005—Continuous casting of metals, i.e. casting in indefinite lengths of wire
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0602—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a casting wheel and belt, e.g. Properzi-process
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/003—Alloys based on aluminium containing at least 2.6% of one or more of the elements: tin, lead, antimony, bismuth, cadmium, and titanium
Abstract
The invention provides a preparation method of an aluminum titanium boron wire, which comprises the following steps: s1, melting and heating a pure aluminum ingot; adding fluoride salt and TiB into the aluminum liquid 2 Removing surface byproducts after the reaction is finished; adding fluoride salt and TiB 2 Removing surface byproducts after the reaction is finished; cooling to obtain an aluminum titanium boron alloy ingot; s2, melting and heating the aluminum titanium boron alloy ingot obtained in the step S1, adding a slag removing agent, uniformly stirring, and removing surface byproducts after the reaction is finished; then continuously adding aluminum fluoride, stirring uniformly, introducing protective gas into the system during stirring, fully stirring uniformly, and standing for a period of timeRemoving surface byproducts after the step, and repeating the steps for a plurality of times; s3, stirring the treated aluminum liquid, standing for a period of time, and casting to obtain aluminum titanium boron wires; the method can avoid the phenomenon of air holes or looseness of the material, improve the strength of the material and has high tapping quantity.
Description
Technical Field
The invention relates to the technical field of aluminum alloy smelting, in particular to an aluminum titanium boron wire and a preparation method thereof.
Background
The aluminum titanium boron is used as an added alloy in the casting process of aluminum and aluminum alloy, is used for grain refinement, can generate a strong refining effect on aluminum and alloy ingot tissues thereof, and the grain refinement capability of the aluminum titanium boron alloy is one of important factors for determining the quality of aluminum processing materials.
The preparation method of the aluminum titanium boron grain refiner comprises an oxide method, a fluoride salt method, a pure titanium grain method and the like according to raw materials. At present, the most widely and effectively method is a fluoride salt method, namely, aluminum titanium boron alloy is manufactured by utilizing potassium fluotitanate and potassium fluoborate through aluminothermic reaction, the aluminum titanium boron alloy manufactured by the method has better refining effect, and the defect that potassium fluoaluminate which is a byproduct generated in the alloying process, metal compound impurities brought by the reaction and impurities brought by corrosion of molten salt on refractory materials are difficult to effectively and thoroughly remove from the aluminum titanium boron alloy, so that the impurities are brought into the refined alloy along with a refiner, the refining effect of the aluminum alloy is weakened, and the existence of low-melting-point salt impurities is caused.
In the invention patent with the patent number of CN102031403A, a manufacturing method for refining high-cleanliness aluminum titanium boron alloy is mentioned, which comprises the following steps of 1) melting an aluminum ingot, adding potassium fluotitanate and alloying potassium fluoborate; 2) Pouring out reaction byproducts floating on the surface of the aluminum liquid, and neutralizing with alumina powder; 3) Raising the temperature of the aluminum liquid, and scattering an alumina powder layer; 4) Argon or nitrogen is introduced into the pipe to enable the residue liquid wrapped in the aluminum liquid to float out and be neutralized; 5) Measuring the hydrogen content of the gas after the gas is treated by a small bubble rotary degassing refining technology; 6) Spraying a special high-temperature anti-oxidation covering agent layer under the thermal state of more than 800 ℃; 7) The temperature of the aluminum liquid is raised, the aluminum liquid is led into a filtering box body provided with an alumina ceramic filter, and online filtering treatment is carried out on the alloy aluminum liquid; 8) Finally, the temperature of the aluminum liquid is reduced, scum is skimmed, and the aluminum titanium boron wire is produced by casting molding. The method can effectively separate fluoride salt and other impurities in the aluminum-titanium-boron alloy liquid, so that the impurities in the aluminum-titanium-boron alloy refiner are reduced, and the cleanliness is greatly improved; the defects are as follows: the tapping amount is low, and as the special high-temperature anti-oxidation covering agent layer is added after degassing, the gold liquid is oxidized or sucked into gas in the previous step, so that the material has the phenomena of air holes or looseness, and the strength of the material is reduced.
Disclosure of Invention
In order to solve the technical problems, the invention provides an aluminum titanium boron wire and a preparation method thereof, which can avoid the phenomenon of air holes or looseness of materials, improve the strength of the materials and have high tapping quantity.
The embodiment of the invention is realized by the following technical scheme:
the preparation method of the aluminum titanium boron wire comprises the following steps:
s1, manufacturing aluminum titanium boron alloy ingot
Melting: adding the pure aluminum ingot into an intermediate frequency furnace to be melted into aluminum liquid, and heating to enable the temperature of the aluminum liquid to reach 700-800 ℃;
alloying: pouring molten aluminum into molten aluminumWrapping and adding potassium fluotitanate, potassium fluoborate mixture and TiB 2 Stirring, performing the first reaction, pouring out the salt water on the surface after the reaction is finished, and adding the potassium fluotitanate, the potassium fluoborate mixture and the TiB 2 Stirring (the mass ratio of the potassium fluotitanate to the potassium fluoborate mixture added for the first time and the second time is 6-8:2-4), carrying out a second reaction, and pouring out surface brine after the reaction is finished;
casting: pouring the aluminum liquid obtained after the alloying reaction into a mold for natural cooling to obtain an aluminum titanium boron alloy ingot;
after the aluminum ingot is melted, adding potassium fluotitanate, potassium fluoborate mixture and TiB into the aluminum liquid 2 Thereby utilizing TiB while manufacturing the aluminum-titanium-boron alloy 2 Will be oxidized to TiO during sintering 2 And B 2 O 3 Under the strengthening action of the two, a large amount of low-viscosity liquid phases are generated, and the liquid phases cover the surfaces of the particles at high temperature and fill gaps between cracks in the material and internal phases of the alloy, so that the material is more densified, the phenomena of air holes and looseness are avoided, and the strength of the material is further enhanced; and fluoride salt and other impurities in the aluminum-titanium-boron alloy liquid are effectively removed through subsequent slag removal for multiple times, so that the cleanliness of the aluminum-titanium-boron wire is improved.
S2, melting aluminum titanium boron alloy ingot, and continuously casting and rolling
Adding an aluminum titanium boron alloy ingot into an intermediate frequency furnace to be melted into aluminum liquid and heating to enable the temperature of the aluminum liquid to reach 700-800 ℃, adding a slag-removing agent to stir, scooping slag on the surface of the alloy aluminum liquid, and finishing primary slag removal; the slag removing agent comprises the following raw materials in parts by mass: 30-40 parts of mirabilite, 30-50 parts of sodium chloride, 10-20 parts of potassium chloride, 10-20 parts of sodium fluosilicate, 10-20 parts of sodium carbonate, 5-10 parts of aluminum fluoride and 5-10 parts of boron nitride; the slag removing agent disclosed by the invention has the advantages that sodium fluosilicate is used as a heat generating agent, so that the temperature of an aluminum melt is increased, the reaction speed is increased, and the energy consumption is reduced; the mirabilite and sodium fluosilicate can release partial gas at high temperature, adsorb impurities in aluminum melt and float upwards, so as to realize physical impurity removal; the combination of sodium chloride and sodium carbonate can improve the fluidity of inclusions in aluminum melt, so that the inclusions can quickly float or sink; the cooperation of sodium fluosilicate and calcium fluoride can reduce the wettability of inclusions and aluminum liquid, so that the inclusions can be stripped from the aluminum liquid rapidly, and under the cooperation of boron nitride and aluminum fluoride, boron is promoted to have enough reaction time with aluminum to form solid matters, and finally, the solid matters are removed before casting, so that the effective separation of aluminum slag is accelerated.
Adding 1KG aluminum fluoride continuously, more effectively bringing slag out of the aluminum, effectively separating the aluminum slag, stirring at 700-800 ℃ for 15-20min; during stirring, introducing protective gas such as argon into the system, fully stirring uniformly to enable gas and residue liquid in the alloy aluminum liquid to float out, standing for 3min, and then carrying out slag dragging operation, repeating the operation for a plurality of times, thereby completing degassing and secondary slag removal, and scooping slag on the surface of the alloy aluminum liquid;
transporting aluminum liquid: pouring the obtained solution into an aluminum water drum to be transported to a production line, pouring the solution into a furnace, degassing and stirring the solution again for 30min, and scooping slag on the surface of the alloy aluminum liquid;
and casting and tandem rolling, namely stirring the treated aluminum liquid, standing for 10-30min, and casting by using a belt-type casting line to obtain the aluminum titanium boron wire.
The invention also provides an aluminum titanium boron wire grain refiner prepared by the preparation method.
The technical scheme of the embodiment of the invention has at least the following advantages and beneficial effects:
1. according to the preparation method of the aluminum titanium boron wire grain refiner, a continuous casting and rolling mode after smelting is adopted, an external reaction is used for reducing the damage of an intermediate frequency furnace, and the service life is prolonged; better reaction can be achieved by two feeds; fluoride and other impurities in the aluminum titanium boron alloy liquid are effectively removed through slag removal for many times, the cleanliness of aluminum titanium boron wires is improved, and casting components are uniform after stirring and standing for 10 min.
2. After the aluminum ingot is melted, adding potassium fluotitanate, potassium fluoborate mixture and TiB into the aluminum liquid 2 Thereby utilizing TiB while manufacturing the aluminum-titanium-boron alloy 2 Will be oxidized to TiO during sintering 2 And B 2 O 3 Thus strong in bothUnder the chemical action, a large amount of low-viscosity liquid phases are generated, the liquid phases cover the surfaces of the particles at high temperature and fill gaps between cracks in the material and internal phases of the alloy, so that the material is more densified, the phenomena of air holes and looseness are avoided, and the strength of the material is further enhanced; and fluoride salt and other impurities in the aluminum-titanium-boron alloy liquid are effectively removed through subsequent slag removal for multiple times, so that the cleanliness of the aluminum-titanium-boron wire is improved.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below. The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention.
Example 1
The preparation method of the aluminum titanium boron wire comprises the following steps:
s1, melting 570kg of pure aluminum ingot and heating to 750 ℃; then 43.89kg of potassium fluotitanate, 95.76kg of potassium fluoborate and 1.91kg of TiB are added into the aluminum liquid 2 Stirring uniformly, and removing surface byproducts after the reaction is finished; then 18.81kg of potassium fluotitanate, 41.04kg of potassium fluoborate and 1.91kg of TiB are added 2 Stirring uniformly, and removing surface byproducts after the reaction is finished; cooling the aluminum liquid after the alloying reaction to obtain an aluminum titanium boron alloy ingot;
s2, melting the aluminum titanium boron alloy ingot obtained in the step S1, heating to 750 ℃, adding 1.0wt% of slag removing agent, uniformly stirring, and removing surface byproducts after the reaction is finished; then stirring continuously at 750 ℃ for 20min, adding 1kg of aluminum fluoride continuously, stirring uniformly, introducing protective gas into the system during stirring, stirring uniformly, standing for a period of time, removing surface byproducts, and repeating the steps for a plurality of times; wherein the slag removing agent comprises the following raw materials in parts by mass: 35 parts of mirabilite, 40 parts of sodium chloride, 15 parts of potassium chloride, 15 parts of sodium fluosilicate, 15 parts of sodium carbonate, 8 parts of aluminum fluoride and 8 parts of boron nitride.
And S3, stirring the treated aluminum liquid, standing for a period of time, and casting to obtain the aluminum titanium boron wire.
The aluminum titanium boron wire obtained by the embodiment has no air holes, a compact tissue structure, high material cleanliness, 650kg of tapping quantity, 5% of Ti content, 1% of B content and good product refining effect.
Example 2
This embodiment differs from embodiment 1 in that: 641kg of pure aluminum ingot, 70.5kg of potassium fluoborate and 153.8kg of potassium fluotitanate; tiB (TiB) 2 The first addition amount is 2.8kg, and the second addition amount is 3.2kg; the slag removing agent comprises the following raw materials in parts by mass: 33 parts of mirabilite, 43 parts of sodium chloride, 17 parts of potassium chloride, 13 parts of sodium fluosilicate, 14 parts of sodium carbonate, 6 parts of aluminum fluoride and 7 parts of boron nitride.
The aluminum titanium boron wire obtained by the embodiment has no air holes, a compact tissue structure, high material cleanliness, a furnace output of 700kg, a Ti content of 5%, a B content of 1% and a good product refining effect.
Example 3
This embodiment differs from embodiment 1 in that: 612kg of pure aluminum ingot, 65.4kg of potassium fluoborate and 142.3kg of potassium fluotitanate; tiB (TiB) 2 The first addition amount is 2.4kg, and the second addition amount is 2.8kg; the slag removing agent comprises the following raw materials in parts by mass: 46 parts of mirabilite, 31 parts of sodium chloride, 11 parts of potassium chloride, 18 parts of sodium fluosilicate, 12 parts of sodium carbonate, 8 parts of aluminum fluoride and 6 parts of boron nitride.
The aluminum titanium boron wire obtained by the embodiment has no air holes, a compact tissue structure, high material cleanliness, 670kg furnace output, 5% Ti content, 1% B content and good product refining effect.
Comparative example 1
The difference between this comparative example and example 1 is that: s1 does not contain TiB 2 The method comprises the steps of carrying out a first treatment on the surface of the The aluminum titanium boron wire obtained in the comparative example has obvious pores, loose tissue structure, poor material cleanliness, 4% of Ti content, 0.7% of B content and poor product refining effect.
Comparative example 2
The difference between this comparative example and example 1 is that: s1, the slag removing agent does not comprise mirabilite and boron nitride; the aluminum titanium boron wire obtained in the comparative example has obvious pores, loose tissue structure, poor material cleanliness, 3% of Ti content, 0.5% of B content and poor product refining effect.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The preparation method of the aluminum titanium boron wire is characterized by comprising the following steps of:
s1, melting a pure aluminum ingot and heating to 700-800 ℃; adding fluoride salt and TiB into the aluminum liquid 2 Stirring uniformly, and removing surface byproducts after the reaction is finished; adding fluoride salt and TiB 2 Stirring uniformly, and removing surface byproducts after the reaction is finished; cooling the aluminum liquid after the alloying reaction to obtain an aluminum titanium boron alloy ingot; the fluoride salt is a mixture of potassium fluotitanate and potassium fluoborate;
s2, melting the aluminum titanium boron alloy ingot obtained in the step S1, heating to 700-800 ℃, adding a slag removing agent, uniformly stirring, and removing surface byproducts after the reaction is finished; then continuously adding aluminum fluoride, stirring uniformly, introducing protective gas into the system during stirring, fully stirring uniformly, standing for a period of time, and removing surface byproducts, and repeating the steps for a plurality of times;
and S3, stirring the treated aluminum liquid, standing for a period of time, and casting to obtain the aluminum titanium boron wire.
2. The preparation method of the aluminum titanium boron wire according to claim 1, wherein in S1, the mass ratio of the fluoride salt added before and after the fluoride salt is 6-8:2-4.
3. The preparation method of the aluminum titanium boron wire according to claim 2, wherein in S1, the mass ratio of potassium fluotitanate to potassium fluoborate in the fluoride salt is 1-3:1.
4. According to claimThe method for preparing aluminum titanium boron wire as described in claim 1, wherein in S1, the TiB is 2 The addition amount of the aluminum ingot is 0.6-1.0wt% of the mass of the aluminum ingot.
5. The method for preparing aluminum titanium boron wire according to claim 4, wherein in S1, the TiB is 2 After the addition of (C), the temperature is kept at 1400-1500 ℃ for 4-5h.
6. The preparation method of the aluminum titanium boron wire according to claim 1, wherein in S2, the slag removing agent comprises the following raw materials in parts by weight: 30-40 parts of mirabilite, 30-50 parts of sodium chloride, 10-20 parts of potassium chloride, 10-20 parts of sodium fluosilicate, 10-20 parts of sodium carbonate, 5-10 parts of aluminum fluoride and 5-10 parts of boron nitride.
7. The preparation method of the aluminum titanium boron wire according to claim 1, wherein in the S2, the slag removing agent is uniformly added at least twice, and the total addition amount of the slag removing agent is 0.6-1.0wt% of the mass of the aluminum titanium boron alloy ingot.
8. The method for preparing aluminum titanium boron wire according to claim 1, wherein in S2, the shielding gas is one of argon, nitrogen or helium.
9. The method for preparing aluminum titanium boron wires according to claim 1, wherein in S2, the addition amount of aluminum fluoride is 0.5-1.0wt% of the mass of the aluminum titanium boron alloy ingot.
10. An aluminum titanium boron wire produced by the production method according to any one of claims 1 to 9.
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