CN106756143A - Aluminium and aluminium alloy melt refining flux and aluminium and aluminium alloy melt method of refining - Google Patents
Aluminium and aluminium alloy melt refining flux and aluminium and aluminium alloy melt method of refining Download PDFInfo
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- CN106756143A CN106756143A CN201710005814.8A CN201710005814A CN106756143A CN 106756143 A CN106756143 A CN 106756143A CN 201710005814 A CN201710005814 A CN 201710005814A CN 106756143 A CN106756143 A CN 106756143A
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- 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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B21/00—Obtaining aluminium
- C22B21/06—Obtaining aluminium refining
- C22B21/062—Obtaining aluminium refining using salt or fluxing agents
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- 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
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- 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
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Abstract
The invention provides a kind of aluminium and aluminium alloy melt refining flux and aluminium and aluminium alloy melt method of refining, it is related to aluminium and Treatment Technology of Molten Aluminum Alloy field, the flux includes the first flux, and the component of the first flux includes by mass percentage：The borofluoride 5~10% of the carbonate 20~40%, alkali metal of the chloride 20~40%, alkali metal of the fluoaluminate 10~20%, alkali metal of alkali metal and the halide 10~20% for removing alkali metal, the chloride of alkali metal include NaCl and/or KCl；The carbonate of alkali metal includes Na2CO3And/or K2CO3；The borofluoride of alkali metal includes NaBF4And/or KBF4；Halide for removing alkali metal includes MgCl2And/or AlF3.The method of refining that the present invention is provided is to use N2As carrier by above-mentioned flux penetrating melt.The flux can adsorb and dissolve the alumina inclusion in melt, crystal grain thinning.
Description
Technical field
The present invention relates to aluminium and Treatment Technology of Molten Aluminum Alloy field, in particular to a kind of aluminium and aluminium alloy melt
Refining flux and aluminium and aluminium alloy melt method of refining.
Background technology
During melting and casting, the hydrogen atom of dissolving separates out to form gas in casting solidification in melt for aluminium and aluminium alloy
Bubble, causes aluminium and aluminium alloy cast ingot or casting to produce defect.Melt forms oxide with air reaction in fusion process simultaneously,
Being involved in melt causes the reduction of its degree of purity, if not being removed in postorder production, oxide is formed in ingot casting or casting
It is mingled with, influences product properties.Therefore must be reduced hydrogen content and removing be mingled with by refining treatment in aluminium and aluminium alloy production
Thing.Aluminium and aluminium alloy during casting solidification, if without additional grain refiner.There is no heterogeneous forming core in melt then, that
Coarse grains will be caused in process of setting, ingot casting or cast properties will be influenceed.To sum up, existing aluminium and aluminium alloy refining agent
Refining effect and rotten, Grain Refinement Effect are also unsatisfactory, and complex process.
The content of the invention
It is an object of the invention to provide a kind of aluminium and aluminium alloy melt refining flux, it can reduce aluminium alloy and melt
The harmful substance contents such as slag, hydrogen, alkali metal in body, and there is good effect for the crystal grain refinement of aluminium alloy melt process of setting
Really.
Additionally, another object of the present invention is to provide a kind of aluminium and aluminium alloy melt method of refining, by refining
Aluminium and aluminium alloy melt refining flux are added in journey, the aluminium and aluminium alloy melt refining flux can be made to play maximum work(
Effect.
What embodiments of the invention were realized in：
A kind of aluminium and aluminium alloy melt refining flux, it includes the first flux, and the component of the first flux presses quality percentage
Include than meter：The carbonate 20 of the chloride 20~40%, alkali metal of the fluoaluminate 10~20%, alkali metal of alkali metal~
40%th, the borofluoride 5~10% of alkali metal and the halide 10~20% for removing alkali metal；
Wherein, the chloride of alkali metal includes at least one in NaCl and KCl；The carbonate of alkali metal includes Na2CO3
And K2CO3In at least one；The borofluoride of alkali metal includes NaBF4And KBF4In at least one；For removing alkali metal
Halide include MgCl2And AlF3In at least one.
A kind of aluminium and aluminium alloy melt method of refining, it includes using N2Above-mentioned aluminium and aluminium alloy melt are refined as carrier
In aluminium and aluminium alloy melt being sprayed into the first flux of flux, wherein, N2Pressure be 12~15KPa, N2Flow for 12~
15L/min。
The beneficial effect of the embodiment of the present invention is：The fluoaluminate of the composition alkali metal in the first flux is molten into aluminium alloy
There is more violent thermit reaction in body, local stirring and thermogenic action are played to melt, promote flux to nonmetal inclusion
Dissolving and exclusion.In at least one addition melt in the chloride of alkali metal such as NaCl and KCl, the chlorination of alkali metal containing
First flux density of thing is lighter, can be good at spreading over the surface of aluminum melt.First of the chloride containing alkali metal
The fluoaluminate of a small amount of alkali metal is added in flux, absorption and dissolution of first flux to slag can be strengthened, and promote slag
Separation and aluminium liquid between, improves refining effect.Such as MgCl of the halide for removing alkali metal in first flux2With
AlF3In it is at least one add into melt, can play a part of to remove alkali metal.And the carbonate of alkali metal is for example
Na2CO3And K2CO3In at least one addition can produce CO in aluminum melt2Gas, the gas is gone up in the form of bubbles in the melt
It is floating, according to the effect of hydrogen dividing potential drop difference and surface tension, can effectively remove the hydrogen content and slag content in melt.Slag content floats
Afterwards, layer protective layer is formed in bath surface, is effectively reduced gas, micro-moisture and enters melt, moreover it is possible to avoid aluminum melt
Further oxidation, plays a part of isolation air, moisture, and protection melt is pure.The carbonate of alkali metal can as desulfurizing agent and
Foaming agent, may also function as fluxing effect.Additionally, the borofluoride of alkali metal such as NaBF4And KBF4In at least one addition
Oxidation on metal surface thing can be cleaned in aluminum melt, the first flux have good absorption and dissolving alumina inclusion,
The effect of crystal grain refinement, can obtain pure aluminium and aluminium alloy melt.Aluminium provided in an embodiment of the present invention and aluminium alloy melt essence
Smelting method is to utilize N2As carrier, the first flux can be made uniformly to be distributed in melt, mixing is evenly.The aluminium and aluminium are closed
Golden melt refining flux is applied to the melt treatment of aluminium alloy, can reduce the nuisance such as slag, hydrogen, alkali metal in aluminium alloy melt
Matter content, and there is good result for the crystal grain refinement of aluminium alloy melt process of setting.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below will be in the embodiment of the present invention
Technical scheme be clearly and completely described.Unreceipted actual conditions person, builds according to normal condition or manufacturer in embodiment
The condition of view is carried out.Agents useful for same or the unreceipted production firm person of instrument, are the conventional product that can be obtained by commercially available purchase
Product.
Aluminium and aluminium alloy melt refining flux and aluminium and aluminium alloy melt method of refining below to the embodiment of the present invention
It is specifically described.
A kind of aluminium and aluminium alloy melt refining flux, it includes the first flux.Wherein, the component of the first flux presses quality
Percentages include：The carbonate 20 of the chloride 20~40%, alkali metal of the fluoaluminate 10~20%, alkali metal of alkali metal
~40%, the borofluoride 5~10% of alkali metal and the halide 10~20% for removing alkali metal.
" fluoaluminate of alkali metal " for referring in embodiments of the present invention can include normal salt, acid salt or normal salt and acid
The mixture of formula salt, wherein, alkali metal refers to six metallic elements of the group ia in the periodic table of elements：Lithium, sodium, potassium, rubidium,
Caesium, francium.Specifically, the fluoaluminate of alkali metal includes but is not limited to K3AlF6、K2AlF5、KAlF4And Na2AlF5In at least one
Kind.The chloride of alkali metal includes at least one in NaCl and KCl；The carbonate of alkali metal includes Na2CO3And K2CO3In
It is at least one；The borofluoride of alkali metal includes NaBF4And KBF4In at least one；Halide bag for removing alkali metal
Include MgCl2And AlF3In at least one.
The fluoaluminate of the composition alkali metal in the first flux enters in aluminium alloy melt that more violent aluminothermy occurs is anti-
Should, local stirring and thermogenic action are played to melt, promote dissolving and exclusion of the flux to nonmetal inclusion.The chlorination of alkali metal
In at least one addition melt in thing such as NaCl and KCl, the first flux density of the chloride of alkali metal containing is lighter, can
The surface of aluminum melt is spread over well.The fluorine aluminium of a small amount of alkali metal is added in the first flux of the chloride containing alkali metal
Hydrochlorate, can strengthen absorption and dissolution of first flux to slag, and promote the separation between slag and aluminium liquid, improve refining effect
Really.Such as MgCl of the halide for removing alkali metal in first flux2And AlF3In it is at least one add into melt,
Can play a part of to remove alkali metal.And the carbonate of alkali metal such as Na2CO3And K2CO3In at least one add aluminium to melt
CO can be produced in body2Gas, the gas floats in the form of bubbles in the melt, according to the effect of hydrogen dividing potential drop difference and surface tension,
The hydrogen content and slag content in melt can effectively be removed.After slag content floats, layer protective layer is formed in bath surface, can be effective
Reduce gas, micro-moisture and enter melt, moreover it is possible to avoid the further oxidation of aluminum melt, play a part of isolation air, moisture,
Protection melt is pure.Additionally, the borofluoride of alkali metal such as NaBF4And KBF4In it is at least one add into melt, can
Oxidation on metal surface thing is cleaned, the effect of purification is further functioned as, protection melt is pure.
Further, the aluminium and aluminium alloy melt refining flux also include the second flux, the first flux and the second flux
Ratio of weight and number be 3~10：1；Component meter includes the component of the second flux by mass percentage：The fluotitanate 55 of alkali metal
~75%, the fluoride 3~15% of graphite powder 10~30% and norium.
" fluotitanate of alkali metal " for referring in embodiments of the present invention can also include normal salt, acid salt or normal salt and
The mixture of acid salt.Specifically, the fluotitanate of alkali metal includes but is not limited to Na2TiF6And K2TiF6In at least one.
And the fluotitanate of the alkali metal in the second flux enter aluminium alloy melt in more violent aluminothermy can also occur
Reaction, local stirring and thermogenic action are played to melt, promote dissolving and exclusion of second flux to nonmetal inclusion.So that with
First flux coordinates, and slagging-off and dehydrogenation effect are more preferable.Additionally, the fluotitanate of alkali metal forms Al with Al in melt3Ti phases, can
Used as the core of forming core in process of setting, the unnecessary Ti crystal grain after core of being expert at is collected around to play and suppresses grain growth
Effect, so as to play a part of crystal grain thinning.The addition of graphite powder, can form the TiC particles of a large amount of Dispersed precipitates with Ti,
As the core of forming core in process of setting, play a part of crystal grain thinning.The fluoride of norium can be molten to aluminium alloy
Body plays good modification effect, and crystallite dimension can be obviously reduced, and improves the homogenieity of Al-alloy products, and rare earth metal can be put
Change and form complex compound REH with the impurities H in western-style clothes melt2Or REH3, so as to reach the effect of degasification.Additionally, mischmetal is golden
The fluoride of category can react with aluminum melt, form substantial amounts of disperse phase, equally can be used as heterogeneous forming core in aluminum melt process of setting
Core, play a part of crystal grain thinning.It is main flux with the first flux when the first flux and the second flux compounding use, the
Flux supplemented by two flux, both compounding uses, effect is more preferable.
First flux primarily serves absorption and dissolution of the enhancing flux to slag, meanwhile, promote between slag and aluminium liquid
Separate, improve refining effect, moreover it is possible to alkali metal is removed, hydrogen content and slag content in reduction melt, and the second flux
Add, enhance the effect of the slagging-off of the first flux and dehydrogenation, at the same can also crystal grain thinning, improve the uniformity of product, compounding makes
With effect is more preferable.
Preferably, the fluoaluminate including alkali metal is 15~20%, alkali to the component of the first flux by mass percentage
The borofluoride 8~10% of the carbonate 25~35%, alkali metal of the chloride 25~35%, alkali metal of metal, for removing
The halide 15~20% of alkali metal；The component of the second flux includes by mass percentage：The fluotitanate 60 of alkali metal~
70%th, the fluoride 5~15% of graphite powder 15~25% and norium.
The first flux and the component of the second flux referred in the embodiment of the present invention can be single in directly buying on the market
Characteristic of component etc. can be found in prior art, will not be described in detail herein.
The preparation method of the aluminium and aluminium alloy melt refining flux is comprised the following steps：
S1, the component of above-mentioned first flux is crushed, the screen cloth for crossing 80~100 mesh is screened；
S2, each component after screening is weighed by mass percentage, carry out 5~10min of mixing, the first flux is obtained
Siccative mixture；
S3, the siccative mixture of the first flux is warming up to 600 DEG C~800 DEG C carries out melting dewater treatment, mechanical agitation 5
~20min, is incubated 20~40min, and the first flux is obtained final product after cooling；
S4, the first flux is broken into the particle that particle diameter is 0.1~1mm, packing, sealing obtain finished product.
The component of the first flux is prepared by the way of consolute, in can thoroughly removing the component of the first flux
Moisture, and make the first flux composition is uniform, steady quality.
When aluminium and aluminium alloy melt refining flux also include the second flux, also need that the second flux, second is manufactured separately
The preparation method of flux is consistent with the preparation method of the first flux, that is to say, the component of the second flux is weighed by mass percentage,
5~10min of mixing is carried out, the siccative mixture of the second flux is obtained；Then the siccative mixture of the second flux is heated up
Melting dewater treatment is carried out to 600 DEG C~800 DEG C, 5~20min of mechanical agitation is incubated 20~40min, second is obtained final product after cooling
Flux.Certainly, when the second flux is prepared, it is also possible to before weighing, first crush the component of the second flux, and excessively 80~
100 sieves, the particle that particle diameter is 0.1~1mm is broken at the same time it can also the second flux after by cooling.Specific method can be found in
The preparation of the first flux, is not illustrating here.
Can select to use independent first flux, or the first flux and the second flux are answered according to actual production demand
With using, can be selected as follows：
First flux is adapted to process alkali metal and the oxide folders such as contained sodium, calcium, lithium in aluminium and aluminium alloy melt
It is miscellaneous, aluminium alloy melt degree of purity is improved, and play good slag hitting effect；
First flux and the second flux compounding use, can improve aluminium and alloy refining effect, while crystalline substance can also be refined
The double effectses of grain, it is adaptable to which high-quality aluminum alloy is refined.
Certainly, in other embodiments, it is also possible to using only the second flux, second flux is adapted to treatment aluminium alloy melt
In impurities H, reduce crystallite dimension, improve product uniformity, play modification effect, do not illustrate here.
A kind of aluminium and aluminium alloy melt method of refining are specially：
It includes using N2The first flux of aluminium and aluminium alloy melt refining flux is injected to aluminium and aluminium conjunction as carrier
In golden melt, wherein, N2Pressure be 12~15KPa, N2Flow be 12~15L/min.N2Be inert gas, not with aluminium and
Aluminium alloy melt or the first flux react, and new impurity will not be brought into, using N2As carrier, and control N2Pressure
Flow, make its by the first flux it is uniform and it is scattered penetrating aluminium and aluminium alloy melt in, mixing evenly, effect is more preferable.
When spraying into the first flux, the refining temperature of aluminium and aluminium alloy melt is 600~650 DEG C.Refined under the specified temp
Agent can melt rapidly, and active ingredient is difficult to vapor away, and can play good refining effect.
Aluminium and aluminium alloy melt refining flux after the first flux is sprayed into, continue when including the first flux and the second flux
Heating sprays into the second flux when making the refining temperature of aluminium and aluminium alloy melt to 660~700 DEG C.
Specifically, when the first flux and the second flux is sprayed into, the ratio of weight and number of the first flux and the second flux need to expire
Foot 3~10：1.Further, in every kilogram of aluminium and aluminium alloy melt, the addition of the first flux is 1.0~1.6g, second
The addition of flux is 0.12~0.4g, also, the penetrating speed of the first flux is 1.2~1.6kg/min, the spray of the second flux
Enter speed for 0.5~1.0kg/min.The first flux and the second flux are sprayed into aluminium and aluminium alloy melt specifically to spray into speed
In, it is possible to increase the first flux and the second flux and aluminium and the mixture homogeneity of aluminium alloy melt so that improve the first flux and
Slagging-off, degasification and the effect of crystal grain thinning of second flux to aluminium and aluminium alloy melt.
The embodiment of the present invention utilizes N2The first flux and the second flux are sprayed into aluminium respectively at different temperatures as carrier
And in aluminium alloy melt, aluminium and aluminium alloy melt refining flux mix uniformly with aluminium and aluminium alloy melt, in the present embodiment,
When aluminium and aluminium alloy melt refining are with flux compounding use, the use ratio of the first flux and the second flux is not only defined
It is 3~10:1, also define the first flux, the consumption of the second flux and spray into speed.By rational proportioning, addition with
And speed is sprayed into, and the efficiency of the first flux and the second flux can be effectively improved, make the first flux and the second flux and aluminium and aluminium
Evenly, the first flux and the second flux play its optimal effect for the mixing of alloy melt, absorption and dissolving alumina inclusion,
The effect of crystal grain refinement is more preferably.
Embodiment one
A kind of aluminium and aluminium alloy melt refining flux, the flux include the first flux and the second flux.Wherein first melts
The component of agent includes by mass percentage：K3AlF610%th, KCl 40%, MgCl210%th, Na2CO330%th, NaBF4
10%；The component of wherein the second flux includes by mass percentage：Na2TiF655%th, graphite powder 30%, norium
Fluoride 15%.
The preparation method of the aluminium and aluminium alloy melt refining flux includes：The first flux and the second flux are prepared respectively,
Wherein, the component of the first flux is weighed according to mass percent, is then tentatively mixed the component of the first flux
Afterwards, the siccative mixture of uniform first flux is obtained；Then the siccative mixture of the first flux is placed in graphite crucible and is risen
Temperature carries out mechanical agitation 5min, insulation 20min with tungsten matter instrument to 650 DEG C of fusings to the flux of molten condition.By cooled and solidified
Block first flux crushing and screening into the particle of 0.1mm, encapsulation finally is dried to product qualified after testing, obtain final product
One flux.In the same way the second flux is prepared with parameter.
A kind of aluminium and aluminium alloy melt method of refining, comprise the following steps：Using N2Aluminium and aluminium alloy are melted as carrier
Body refining flux is injected in aluminium and aluminium alloy melt, adjusts N2Pressure be 12KPa, N2Flow be 12L/min.Use
When, the proportioning of the first flux and the second flux is 4：1.Specifically, the refining temperature in aluminium and aluminium alloy melt rises to 600 DEG C
When, the first flux is sprayed into, the addition of the first flux is 1.2g/kg melts, (be that is to say, to every kilogram of aluminium and aluminium alloy melt
In, add the first flux 1.2g) penetratings speed be 1.2kg/min, be sufficiently stirred for, skim；When aluminium in smelting furnace and aluminium alloy are molten
When the temperature of body rises to 660 DEG C, the second flux is sprayed into, addition is 0.3g/kg melts, and penetrating speed is 0.5kg/min, is filled
Divide stirring, skim；Routinely technique stands insulation.
Using above-mentioned aluminium and aluminium alloy melt refining flux, rear Comparative result is as follows after testing：
First flux and the second flux compounding use are understood by testing result, with good absorption and dissolving aluminum oxide folder
Miscellaneous, crystal grain refinement effect, can obtain pure aluminium and aluminium alloy melt.
Embodiment two
A kind of aluminium and aluminium alloy melt refining flux, the flux include the first flux and the second flux.Wherein first melts
Agent includes by mass percentage：K3AlF63%th, K2AlF510%th, KAlF45%th, Na2AlF52%th, NaCl 25%, AlF3
15%th, Na2CO335%th, KBF45%；Wherein the second flux includes by mass percentage：Na2TiF675%th, graphite powder
10%th, the fluoride 15% of norium.
The preparation method of the aluminium and aluminium alloy melt refining flux includes：The first flux and the second flux are prepared respectively,
Wherein, first the component of the first flux is crushed, the screen cloth of 80 mesh is crossed respectively.Secondly, weighed according to mass percent, will be claimed
After component after taking carries out tentatively mixing, it is placed in graphite crucible and is warming up to 700 DEG C of fusings, with tungsten matter instrument to molten condition
First flux carries out mechanical agitation 7min, insulation 30min.By the block first flux crushing and screening of cooled and solidified into 0.3mm's
Particle, is finally dried encapsulation to product qualified after testing, obtains final product the first flux.In the same way the is prepared with parameter
Two flux.
Aluminium and aluminium alloy melt method of refining are identical with embodiment one, and difference is：Regulation N2Pressure be
15KPa, N2Flow be 15L/min.When using, the proportioning of the first flux and the second flux is 3：1.In aluminium and aluminium alloy melt
Refining temperature when rising to 630 DEG C, add the first flux, addition is 1.2g/kg melts, and penetratings speed is 1.3kg/min, is filled
Divide stirring, skim；When the temperature of aluminium in smelting furnace and aluminium alloy melt rises to 700 DEG C, the second flux is added, addition is
0.4g/kg melts, penetrating speed is 1.0kg/min, is sufficiently stirred for, skims；Routinely technique stands insulation.
Using above-mentioned aluminium and aluminium alloy melt refining flux, rear Comparative result is as follows after testing：
First flux and the second flux compounding use are understood by testing result, with good absorption and dissolving aluminum oxide folder
Miscellaneous, crystal grain refinement effect, can obtain pure aluminium and aluminium alloy melt.
Embodiment three
A kind of aluminium and aluminium alloy melt refining flux, the flux are made up of the first flux and the second flux.Wherein
First flux includes by mass percentage：K3AlF620%th, KCl 30%, MgCl217%th, K2CO325%th, NaBF4
5%th, KBF43%；Wherein the second flux includes by mass percentage：Na2TiF665%th, graphite powder 25%, mischmetal gold
The fluoride 10% of category.
Aluminium and aluminium alloy melt method of refining are identical with embodiment one, and difference is：Regulation N2Pressure be
13KPa, N2Flow be 13L/min.When using, the proportioning of the first flux and the second flux is 5：1.In aluminium and aluminium alloy melt
Refining temperature when rising to 650, add the first flux, addition is 1.0g/kg melts, and penetratings speed is 1.4kg/min, fully
Stir, skim；When the temperature of aluminium in smelting furnace and aluminium alloy melt rises to 700 DEG C, the second flux is added, addition is
0.2g/kg melts, penetrating speed is 0.6kg/min, is sufficiently stirred for, skims；Routinely technique stands insulation.
Using above-mentioned aluminium and aluminium alloy melt refining flux, rear Comparative result is as follows after testing：
First flux and the second flux compounding use are understood by testing result, with good absorption and dissolving aluminum oxide folder
Miscellaneous, crystal grain refinement effect, can obtain pure aluminium and aluminium alloy melt.
Example IV
A kind of aluminium and aluminium alloy melt refining flux, the flux are made up of the first flux and the second flux.Wherein
First flux includes by mass percentage：K3AlF65%th, K2AlF55%th, KAlF45%th, NaCl 15%, KCl 15%,
MgCl25%th, AlF315%th, K2CO325%th, NaBF45%th, KBF45%；Wherein the second flux is wrapped by mass percentage
Include：K2TiF667%th, the fluoride 5% of graphite powder 28%, norium.
The preparation method of the aluminium and aluminium alloy melt refining flux includes：The first flux and the second flux are prepared respectively,
Wherein, first the component of the first flux is crushed, crosses the screen cloth of 100 mesh；Then after the component of the first flux being carried out into tentatively mixing,
The siccative mixture of uniform first flux is obtained respectively；Then the siccative mixture of the first flux is placed in graphite crucible respectively
In be warming up to 800 DEG C of fusings, the flux of molten condition is carried out with tungsten matter instrument mechanical agitation 12min, insulation 30min.Will be cold
But the block first flux crushing and screening for solidifying finally is dried into the particle of 0.075~1mm to product qualified after testing
Encapsulation, obtains final product the first flux.In the same way the second flux is prepared with parameter.
Aluminium and aluminium alloy melt method of refining are identical with embodiment one, and difference is：Regulation N2Pressure be
14KPa, N2Flow be 14L/min.When using, the proportioning of the first flux and the second flux is 10：1.It is molten in aluminium and aluminium alloy
When the refining temperature of body rises to 620, the first flux is added, addition is 1.2g/kg melts, and penetrating speed is 1.4kg/min, is filled
Divide stirring, skim；When the temperature of aluminium in smelting furnace and aluminium alloy melt rises to 680 DEG C, the second flux is added, addition is
0.12g/kg melts, penetrating speed is 0.8kg/min, is sufficiently stirred for, skims；Routinely technique stands insulation.
Using above-mentioned aluminium and aluminium alloy melt refining flux, rear Comparative result is as follows after testing：
First flux and the second flux compounding use are understood by testing result, with good absorption and dissolving aluminum oxide folder
Miscellaneous, crystal grain refinement effect, can obtain pure aluminium and aluminium alloy melt.
Embodiment five
A kind of aluminium and aluminium alloy melt refining flux, can be used alone the first flux.First flux is by mass percentage
Meter includes：Na2AlF520%th, NaCl 20%, MgCl220%th, Na2CO310%th, K2CO325%th, NaBF42%th, KBF4
3%.
After said components are carried out into tentatively mixing, it is placed in graphite crucible and is warming up to 700 DEG C of fusings, with tungsten matter instrument to molten
Melting the flux of state carries out mechanical agitation 20min, insulation 30min.By the lump stone crushing and screening of cooled and solidified into 0.6mm's
Particle, is finally dried encapsulation to product qualified after testing.
Aluminium and aluminium alloy melt method of refining are identical with embodiment one, and difference is：In the present embodiment, to aluminium and
When aluminium alloy melt is refined, the first flux is only used, when the refining temperature of aluminium and aluminium alloy melt rises to 650, adjusted
Section N2Pressure be 12KPa, N2Flow be 12L/min, the first flux is added under the pressure and flow velocity, addition is 1.6g/
Kg melts, penetrating speed is 1.6kg/min, is sufficiently stirred for, skims；Routinely technique stands insulation.
Using above-mentioned aluminium and aluminium alloy melt refining flux, rear Comparative result is as follows after testing：
After understanding the first flux use by testing result, with good absorption and dissolving alumina inclusion, crystal grain refinement
Effect, can obtain pure aluminium and aluminium alloy melt.
Embodiment six
A kind of aluminium and aluminium alloy melt refining flux, the flux include the first flux and the second flux.Wherein first melts
Agent includes by mass percentage：K3AlF65%th, Na2AlF510%th, NaCl 20%, KCl 17%, MgCl220%th,
K2CO320%th, NaBF45%th, KBF43%, wherein the second flux includes by mass percentage：Na2TiF635%th, KTiF5
40%th, the fluoride 3% of graphite powder 22%, norium.
In the present embodiment, a kind of aluminium and aluminium alloy melt method of refining can refer to embodiment one, repeat no more here.
Using above-mentioned aluminium and aluminium alloy melt refining flux, rear Comparative result is as follows after testing：
Embodiments described above is a part of embodiment of the invention, rather than whole embodiments.Reality of the invention
The detailed description for applying example is not intended to limit the scope of claimed invention, but is merely representative of selected implementation of the invention
Example.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
Every other embodiment, belongs to the scope of protection of the invention.
Claims (10)
1. a kind of aluminium and aluminium alloy melt refining flux, it is characterised in that it includes the first flux, the group of first flux
Divide includes by mass percentage：The chloride 20~40%, alkali metal of the fluoaluminate 10~20%, alkali metal of alkali metal
The borofluoride 5~10% of carbonate 20~40%, alkali metal and the halide 10~20% for removing alkali metal；
Wherein, the chloride of the alkali metal includes at least one in NaCl and KCl；The carbonate of the alkali metal includes
Na2CO3And K2CO3In at least one；The borofluoride of the alkali metal includes NaBF4And KBF4In at least one；It is described
Halide for removing alkali metal includes MgCl2And AlF3In at least one.
2. aluminium according to claim 1 and aluminium alloy melt refining flux, it is characterised in that the fluorine aluminium of the alkali metal
Hydrochlorate includes K3AlF6、K2AlF5、KAlF4And Na2AlF5In at least one.
3. aluminium according to claim 1 and aluminium alloy melt refining flux, it is characterised in that the aluminium and aluminium alloy are molten
Body refining flux also includes the second flux, and the ratio of weight and number of first flux and second flux is 3~10：1；Institute
The component for stating the second flux includes by mass percentage：The fluotitanate 55~75% of alkali metal, graphite powder 10~30% with
And the fluoride 3~15% of norium.
4. aluminium according to claim 3 and aluminium alloy melt refining flux, it is characterised in that the fluorine titanium of the alkali metal
Hydrochlorate includes Na2TiF6And K2TiF6In at least one.
5. aluminium according to claim 3 and aluminium alloy melt refining flux, it is characterised in that the group of first flux
Divide includes by mass percentage：The fluoaluminate 15~20% of the alkali metal, the chloride 25~35% of the alkali metal,
The carbonate 25~35% of the alkali metal, the borofluoride 8~10% of the alkali metal and described for removing alkali metal
Halide 15~20%；
The component of second flux includes by mass percentage：The fluotitanate 60~70% of the alkali metal, the stone
The fluoride 5~15% of ink powder 15~25% and the norium.
6. a kind of aluminium and aluminium alloy melt method of refining, it is characterised in that it includes using N2Will be such as claim 1 institute as carrier
The aluminium and first flux of aluminium alloy melt refining flux stated are sprayed into aluminium and aluminium alloy melt, wherein, the N2's
Pressure is 12~15KPa, the N2Flow be 12~15L/min.
7. aluminium according to claim 6 and aluminium alloy melt method of refining, it is characterised in that spray into first flux
When, the refining temperature of the aluminium and aluminium alloy melt is 600~650 DEG C.
8. aluminium according to claim 7 and aluminium alloy melt method of refining, it is characterised in that the aluminium and aluminium alloy melt
Refining flux also includes the second flux, and after spraying into first flux, continuing to heat makes the essence of the aluminium and aluminium alloy melt
Second flux is sprayed into when refining temperature is to 660~700 DEG C；
Wherein, the component of second flux includes by mass percentage：The fluotitanate 55~75%, graphite powder of alkali metal
10~30% and the fluoride 3~15% of norium.
9. aluminium according to claim 8 and aluminium alloy melt method of refining, it is characterised in that spraying into first flux
During with second flux, the ratio of weight and number of first flux and second flux is 3~10：1.
10. aluminium according to claim 9 and aluminium alloy melt method of refining, it is characterised in that in every kilogram of aluminium and
In aluminium alloy melt, the addition of first flux is 1.0~1.6g, the addition of second flux for 0.12~
0.4g, the penetrating speed of first flux is 1.2~1.6kg/min, the penetrating speed of second flux for 0.5~
1.0kg/min。
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110438355A (en) * | 2019-08-28 | 2019-11-12 | 福建工程学院 | A kind of brass alloys grain refiner and its preparation process and application method |
| US10513753B1 (en) * | 2019-01-03 | 2019-12-24 | 2498890 Ontario Inc. | Systems, methods, and cored wires for treating a molten metal |
| CN111575518A (en) * | 2020-05-15 | 2020-08-25 | 包头铝业有限公司 | Fluoride salt complex aluminum alloy refining agent and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104328299A (en) * | 2014-10-23 | 2015-02-04 | 山东南山铝业股份有限公司 | Flux for aluminum and aluminum alloy melt refining and preparation method of flux |
| CN105624448A (en) * | 2016-03-28 | 2016-06-01 | 吴炳尧 | Rare earth contained deslagging and refining flux for smelting of cast aluminium alloy and preparation method of flux |
-
2017
- 2017-01-04 CN CN201710005814.8A patent/CN106756143B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104328299A (en) * | 2014-10-23 | 2015-02-04 | 山东南山铝业股份有限公司 | Flux for aluminum and aluminum alloy melt refining and preparation method of flux |
| CN105624448A (en) * | 2016-03-28 | 2016-06-01 | 吴炳尧 | Rare earth contained deslagging and refining flux for smelting of cast aluminium alloy and preparation method of flux |
Non-Patent Citations (2)
| Title |
|---|
| 上海机械工程学会铸造学组: "《国外现代铸造》", 31 January 1980, 上海科学技术文献出版社 * |
| 孝云祯等: "《有色金属熔炼与铸锭》", 28 February 1994, 东北大学出版社 * |
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| WO2020140149A1 (en) * | 2019-01-03 | 2020-07-09 | 2498890 Ontario Inc. | Systems, methods, and cored wires for treating a molten metal |
| CN110438355A (en) * | 2019-08-28 | 2019-11-12 | 福建工程学院 | A kind of brass alloys grain refiner and its preparation process and application method |
| CN110438355B (en) * | 2019-08-28 | 2021-04-02 | 福建工程学院 | Brass alloy grain refiner, and preparation process and use method thereof |
| CN111575518A (en) * | 2020-05-15 | 2020-08-25 | 包头铝业有限公司 | Fluoride salt complex aluminum alloy refining agent and preparation method thereof |
| CN111575518B (en) * | 2020-05-15 | 2021-08-20 | 包头铝业有限公司 | Fluoride salt complex aluminum alloy refining agent and preparation method thereof |
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| CN112941360B (en) * | 2021-01-11 | 2022-05-20 | 南昌大学 | Preparation method of carbon nano tube reinforced aluminum alloy semi-solid slurry |
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| CN113699404A (en) * | 2021-08-25 | 2021-11-26 | 苏州大学 | Composite salt for purifying aluminum waste and preparation and use methods thereof |
| CN113699404B (en) * | 2021-08-25 | 2022-06-24 | 苏州大学 | Composite salt for purifying aluminum waste and preparation and use methods thereof |
| CN115109961A (en) * | 2022-06-10 | 2022-09-27 | 徐州思源铝业有限公司 | Aluminum alloy rare earth refining agent and preparation method thereof |
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Denomination of invention: Flux for aluminum and aluminum alloy melt refining and aluminum and aluminum alloy melt refining method Effective date of registration: 20211117 Granted publication date: 20181221 Pledgee: Yantai Donghai aluminum foil Co.,Ltd. Pledgor: Shandong Nanshan Aluminium Co.,Ltd. Registration number: Y2021980012518 |
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