CN107142383B - Titanium additive and its preparation process - Google Patents
Titanium additive and its preparation process Download PDFInfo
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- CN107142383B CN107142383B CN201710281877.6A CN201710281877A CN107142383B CN 107142383 B CN107142383 B CN 107142383B CN 201710281877 A CN201710281877 A CN 201710281877A CN 107142383 B CN107142383 B CN 107142383B
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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
- 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 present invention provides a kind of titanium additive and its preparation process, titanium additive includes each component of following mass fraction: titanium valve: 28-32 mass parts；Potassium fluoroaluminate: 18-22 mass parts；Potassium fluosilicate: 18-22 mass parts；Potassium fluotitanate: 14-16 mass parts；Potassium fluoborate: 14-16 mass parts；Activated aluminum powder: 4-6 mass parts；Potassium nitrate: 2-5 mass parts.Titanium additive provided by the invention, pass through optimization of C/C composites, so that violent physical-chemical reaction can promptly occur with aluminum melt after titanium additive investment aluminum melt, discharging a large amount of thermal energy makes melt be rapidly heated, promote titanium valve to fuse into aluminum melt and form alloy, to improve the melting rate of titanium valve；And the melt contact area with higher for spreading out performance, increasing with aluminum melt that reaction generates, dissolution of the aluminum melt to titanium valve is also increased, so as to increase substantially absorption of the aluminum melt to titanium elements, and then production efficiency is improved, has saved production cost.
Description
Technical field
The present invention relates to Metal Melting manufacture fields, add in particular to a kind of titanium additive and the titanium elements
Add the preparation process of agent.
Background technique
Cast aluminium alloy gold melt optimal use temperature is usually 680 DEG C -720 DEG C, and titanium is most common addition in aluminium alloy
The mechanical performance of aluminium alloy castings can be improved in agent, improves casting compactness, reduces Shrinkage Porosity and crackle.Existing titanium elements add
Agent is added to have the following problems: in use first is that melting relatively slowly in aluminium alloy smelting processing, fusing time is long；Second is that 740
DEG C and following aluminum water in fusing amount it is on the low side, absorptivity (melting rate) is relatively low, generally only 80%-85%.Due to titanium elements fusing point
Up to 1668 DEG C, fusing point is high, in addition granularity is larger, some unfused titanium elements is stayed in processing slag and wasted, and improves
Although aluminum melt temperature will increase some rate of recovery (melting rate), but can increase the scaling loss of aluminium, increase the hydrogen-sucking amount of aluminum melt, dislike
Change the performance of molten aluminium alloy, and each metal component of aluminium alloy is uneven, and the time of preparation is also longer, bring cost rising and
Decline in efficiency.
Summary of the invention
At least one in order to solve the above-mentioned technical problem, it is an object of the present invention to provide a kind of additions of titanium elements
Agent.
It is another object of the present invention to provide a kind of preparation processes of above-mentioned titanium additive.
To achieve the goals above, the technical solution of first aspect present invention provides a kind of titanium additive, including
The each component of following mass fraction: titanium valve: 28-32 mass parts；Potassium fluoroaluminate: 18-22 mass parts；Potassium fluosilicate: 18-22 mass
Part；Potassium fluotitanate: 14-16 mass parts；Potassium fluoborate: 14-16 mass parts；Activated aluminum powder: 4-6 mass parts；Potassium nitrate: 2-5 matter
Measure part.
The titanium additive that the technical solution of first aspect present invention provides, by optimization of C/C composites, so that titanium elements add
Violent physical-chemical reaction can promptly occur with aluminum melt after adding agent to put into aluminum melt, discharging a large amount of thermal energy keeps melt fast
Speed heating promotes titanium valve to fuse into aluminum melt and forms alloy, to improve the melting rate of titanium valve；And the melt tool that reaction generates
There is the higher contact area for spreading out performance, increasing with aluminum melt, also increases dissolution of the aluminum melt to titanium valve, so as to
Absorption of the aluminum melt to titanium elements is increased substantially, compared to the prior art, had not only reduced the waste of additive, but also improve aluminium
The properties of alloy, and production efficiency is improved, production cost has been saved, there is very big market value and dissemination.
Further, titanium elements provide in national standard in many aluminium alloy trades mark as addition element common in aluminium alloy
There must be the content of titanium elements, titanium can form TiAl with aluminium in aluminium alloy3Phase, it is non-spontaneous when becoming aluminum melt solidification and crystallization
Core plays a part of to refine cast sturcture, and then improves the mechanical performance and other performances of aluminium alloy；And titanium provided by the present application
Element additive improves melting rate and absorptivity of the titanium elements in aluminum melt, therefore is conducive to advanced optimize aluminium alloy
Institutional framework, and then advanced optimize the properties of aluminium alloy obtained.
Specifically, in the application, the ingredient of titanium additive mainly divides two large divisions: the metallic element of addition and fluxing
Agent.The metallic element of addition is titanium valve, is the primary raw material of the additive, forms TiAl for fusing into aluminum melt and aluminium3, play
Fine grain effect；Fluxing agent is mainly mixed by various salt, including potassium fluoroaluminate, potassium fluosilicate, potassium fluotitanate, potassium fluoborate,
Potassium nitrate and a small amount of activated aluminum powder (i.e. the relatively high aluminium powder of aluminium purity or aluminium content) respectively play the role of difference
Are as follows:
Potassium fluoroaluminate: when potassium fluoroaluminate in aluminum melt containing high level, the melt paving with higher of generation is reacted
The property opened can increase the contact area of melt and aluminum melt, increase the contact area of titanium valve and aluminum melt；
Potassium fluosilicate: playing heating functioin, and following a series of chemical reactions can be occurred by entering in molten aluminium alloy:
It first decomposes reaction: K2SiF6→SiF4+2KF
Then occur: 3SiF4+4Al→4AlF3+3Si
AlF3+2Al→3AlF
6KF+2Al2O3→3KAlO2+K3AlF6
In aforementioned four reaction, latter three are all exothermic reactions, therefore melt can be made to be rapidly heated, to improve titanium valve
Melt rate；
Potassium fluotitanate and potassium fluoborate: playing heating functioin, following a series of into that can occur in molten aluminium alloy
Chemical reaction:
K2TiF6+2KBF4=TiB2+4KF+5F2
2K2TiF6+2KBF4+ 5Al=TiB2+TiAl3+6KF+4F2+2AlF3
H2+F2=2HF
6KF+2Al2O3=3KAlO2+K3AlF6
These reactions are also all exothermic reactions, can also melt be made to be rapidly heated, to improve the melting rate of titanium valve；
Activated aluminum powder and potassium nitrate: mainly as combustion adjuvant, following chemical reactions can be occurred by entering in molten aluminium alloy:
2Al2O3+4KNO3=4KAlO2+4NO2+O2
4Al+3O2=2Al2O3
The two reactions are also exothermic reaction, are also beneficial to improve melt temperature, and then improve the melting rate of titanium valve.
From the foregoing, it will be observed that titanium additive provided by the present application, by being collocated with each other for various ingredients, and each component is distinguished
Control is in suitable range, so that the chemical reaction of generation releases largely after molten aluminium alloy is added in titanium additive
Heat increases the temperature of melt, and increasing aluminum melt, local heating is rapid to the solubility of titanium elements, and not only, makes titanium valve
Aluminum melt can be quickly fused into, and contains higher potassium fluoroaluminate ingredient in melt, so that the contact surface of titanium valve and aluminum melt
Product also greatly increases, and then promotes titanium valve and fuse into aluminum melt, finally greatly improves aluminum melt to the absorptivity of titanium elements.
In addition, the titanium additive in above-mentioned technical proposal provided by the invention can also have following supplementary technology special
Sign:
In the above-mentioned technical solutions, it is preferable that the titanium additive includes each component of following mass fraction: titanium
Powder: 29-31 mass parts；Potassium fluoroaluminate: 19-21 mass parts；Potassium fluosilicate: 19-21 mass parts；Potassium fluotitanate: 15-16 mass
Part；Potassium fluoborate: 15-16 mass parts；Activated aluminum powder: 4-6 mass parts；Potassium nitrate: 2-4 mass parts.
In the above-mentioned technical solutions, it is highly preferred that the titanium additive includes each component of following mass fraction: titanium
Powder: 29-31 mass parts；Potassium fluoroaluminate: 19-20 mass parts；Potassium fluosilicate: 19-20 mass parts；Potassium fluotitanate: 15-16 mass
Part；Potassium fluoborate: 15-16 mass parts；Activated aluminum powder: 5 mass parts；Potassium nitrate: 3 mass parts.
The content range of each component is further reduced to above range, can make titanium additive burn-off rate and
Aluminum melt is further enhanced to the absorptivity of titanium elements.
In any of the above-described technical solution, in the component that the titanium additive includes: the granularity of titanium valve is 40-60
Mesh, potassium fluoroaluminate, potassium fluosilicate, potassium fluotitanate, potassium fluoborate, activated aluminum powder and potassium nitrate granularity be 60-80 mesh.
In general, the granularity of additive is thinner, and the absorptivity after molten aluminium alloy is added is higher, but meticulous original
Material can form dust from flying in process of production, can not only deteriorate production environment, will also result in significant loss, so our company
The granularity of titanium valve is controlled other components in the range of 40-60 mesh by finding after test of many times and research by technical staff
Granularity control in the range of 60-80 mesh, not only absorptivity with higher, but also dust from flying can be avoided as much as.
In any of the above-described technical solution, the overall moisture content of the titanium additive is less than 1%.
When titanium additive water content is excessively high, matched aluminum melt air-breathing will lead to after being added to aluminum melt, in turn
Deteriorate aluminum melt quality, the technical staff of our company has found that the overall moisture content of titanium additive is less than by test of many times
When 1%, the quality of aluminum melt is influenced unobvious；And when requiring the overall moisture content of titanium additive too low, it is on the one hand raw
Production. art is extremely difficult to require, and another aspect each component raw material then will form a large amount of dust when feeding intake, stirring and transporting, and make
At loss of material, degradation manipulation environment.Therefore, the technical staff of our company comprehensively considered production cost, production efficiency and
On the basis of product quality, by being obtained after test of many times, the overall moisture percentage control of titanium additive is being less than
It is more appropriate in 1% content range.
In any of the above-described technical solution, the titanium additive compacting is freely fallen in bulk from the height of 3m
Keep complete.
After titanium additive is compacted, and holding is freely fallen completely from the height of 3m, meet titanium additive
Quantitative package transports the requirement for the various aspects such as storing and quantitatively using, and block-like titanium additive is pressed only to need monolith straight
Aluminum melt bottom can be sunk to automatically by connecing in investment aluminum melt, carried out Chemical Physics with entire aluminum melt and reacted, make titanium elements more
It is evenly dispersed into aluminum melt；And mass loss is be easy to cause if pulvis state in packaging, transport and use process,
And the titanium additive of pulvis shape is put into the auxiliary that aluminum melt bottom just needs pipeline and gas.
The technical solution of second aspect of the present invention provides a kind of preparation process of titanium additive, comprising: according to institute
The mass fraction for stating component and each component that titanium additive includes weighs raw material；The group for including by the titanium additive
It is stirred in point investment blender；After stirring, discharging, weighing, briquetting, packaging；Wherein, the titanium additive include with
The each component of lower mass fraction: titanium valve: 28-32 mass parts；Potassium fluoroaluminate: 18-22 mass parts；Potassium fluosilicate: 18-22 mass
Part；Potassium fluotitanate: 14-16 mass parts；Potassium fluoborate: 14-16 mass parts；Activated aluminum powder: 4-6 mass parts；Potassium nitrate: 2-5 matter
Measure part.
The preparation process for the titanium additive that the technical solution of second aspect of the present invention provides, according to first aspect technology
Formula in scheme weighs raw material, and weighed raw material is put into blender, under suitable mixing speed, stirs certain time
After take out, then on special production line weigh briquetting packaging, obtain titanium additive investment aluminum melt after energy
Violent physical-chemical reaction promptly occurs with aluminum melt, discharging a large amount of thermal energy makes melt be rapidly heated, and promotes titanium valve molten
Enter aluminum melt and form alloy, to improve the melting rate of titanium valve；And reaction generate melt it is with higher spread out performance,
The contact area with aluminum melt is increased, dissolution of the aluminum melt to titanium valve is also increased, so as to increase substantially aluminum melt
Absorption to titanium elements had not only reduced the waste of additive compared to the prior art, but also improved the properties of aluminium alloy,
And production efficiency is improved, production cost has been saved, there is very big market value and dissemination.
In addition, the preparation process of the titanium additive in above-mentioned technical proposal provided by the invention can also have it is as follows
Additional technical feature:
In the above-mentioned technical solutions, it is preferable that the titanium additive includes each component of following mass fraction: titanium
Powder: 29-31 mass parts；Potassium fluoroaluminate: 19-21 mass parts；Potassium fluosilicate: 19-21 mass parts；Potassium fluotitanate: 15-16 mass
Part；Potassium fluoborate: 15-16 mass parts；Activated aluminum powder: 4-6 mass parts；Potassium nitrate: 2-4 mass parts.
In the above-mentioned technical solutions, it is highly preferred that the titanium additive includes each component of following mass fraction: titanium
Powder: 29-31 mass parts；Potassium fluoroaluminate: 19-20 mass parts；Potassium fluosilicate: 19-20 mass parts；Potassium fluotitanate: 15-16 mass
Part；Potassium fluoborate: 15-16 mass parts；Activated aluminum powder: 5 mass parts；Potassium nitrate: 3 mass parts.
When ingredient, the content range of each component is further reduced to above range, the molten of titanium additive can be made
Change speed and aluminum melt is further enhanced to the absorptivity of titanium elements.
In any of the above-described technical solution, in the mass parts of the component and each component that include according to the titanium additive
Number weighs before raw material, further includes: sieves to each component that the titanium additive includes, selects respectively after screening
The granularity of titanium valve is 40-60 mesh, potassium fluoroaluminate, potassium fluosilicate, potassium fluotitanate, potassium fluoborate, activated aluminum powder and the nitre of selection
The granularity of sour potassium is 60-80 mesh.
In general, the granularity of additive is thinner, and the absorptivity after molten aluminium alloy is added is higher, but meticulous original
Material can form dust from flying in process of production, can not only deteriorate production environment, will also result in significant loss, so our company
The granularity of titanium valve is controlled other components in the range of 40-60 mesh by finding after test of many times and research by technical staff
Granularity control in the range of 60-80 mesh, not only absorptivity with higher, but also dust from flying can be avoided as much as.
In any of the above-described technical solution, stirred in the component investment blender for including by the titanium additive
Before mixing, further includes: determination of moisture is carried out respectively to each component that the titanium additive includes, to guarantee the titanium elements
The water content for each component that additive includes is respectively less than 1%.
When titanium additive water content is excessively high, matched aluminum melt air-breathing will lead to after aluminum melt is added, and then dislike
Change aluminum melt quality, when finding the overall moisture content of titanium additive less than 1% by test of many times, to the quality of aluminum solutions
It influences unobvious, does not have water in process of production and enter；And when requiring the overall moisture content of titanium additive too low, a side
Production. art of looking unfamiliar is extremely difficult to require, and another aspect each component raw material then can degradation manipulation environment when feeding intake, stirring and transporting.
Therefore, the technical staff of our company is on the basis of having comprehensively considered production cost, production efficiency and product quality, by multiple
It obtains, the overall moisture percentage of titanium additive is controlled more appropriate in the content range less than 1% after test.
Further, in order to control the overall moisture content of titanium additive less than 1%, the metaplasia that conforms to the principle of simplicity production. art is improved
From the aspect of production efficiency, the control that water content is carried out from each component raw material is the simplest scheme.This is because a variety of groups
Divide the diffusion that moisture occurs during being stirred in blender, i.e. moisture can be low from high-moisture component to water content
Diffusion of components, and overall water content is then basically unchanged and (is only stirred) or be gradually reduced and (dried while stirring
It is dry), and originally when each component moisture difference can be bigger, but finally reach unanimity mostly.Therefore, when each component raw material
When water content is respectively less than 1%, that is, it can guarantee the overall moisture content of titanium additive obtained again smaller than 1%；On the other hand, respectively
When the water content of component raw material is excessively high, bonding is easy in whipping process, it is necessary to moisture is constantly measured in whipping process, very
To needing to carry out baking process, increase process complexity, also the increase production time；In addition, in the actual production process, each group
Divide the water content of raw material also no more than 1%, otherwise will lead to the more difficult progress of production technology, because even all components raw material
Whole water content less than 1%, and the water content of individual components is excessively high, and the water content of other components is accordingly relatively low, when stirring
It can be easy to happen bonding phenomenon, influence the preparation process of titanium additive, the time can also become longer, or even interrupt stirred
Journey.Therefore, it needs to be measured the moisture content of feed components before stirring, to avoid each raw material component water content mistake
It is high.
So the preparation process of titanium additive provided by the present application before stirring first carries out each component raw material
Determination of moisture makes the water content of each component raw material be respectively less than 1%, then again puts into blender each component raw material and stirs
It mixes, both ensure that the overall moisture content of titanium additive obtained less than 1%, and then guarantees titanium additive obtained
Using effect, in turn simplifies the preparation process of titanium additive, and shortens the production cycle.Specifically, halogen can be used
Fast tester for water content measures moisture, and this instrumentation is convenient, market sale is also more.
In any of the above-described technical solution, during stirring, the mixing speed of the blender is 20-30 revs/min,
The time of stirring is 4-6 hours.
In any of the above-described technical solution, after stirring the step of discharging, weighing, briquetting, packaging specifically: carried out after stirring
Quantitative weighing, briquetting, sealed package and vanning.
It is in order to be homogenously mixed together each component, to guarantee titanium member that each component, which is put into the purpose stirred in blender,
, can be evenly dispersed when in plain additive investment molten aluminium alloy, and then uniform physical-chemical reaction occurs, it is preferable to obtain
Melting rate and absorptivity；Thus mixing speed and time influence very big, the technology people of our company to the mixed process of raw material
Member has found after multiple development test, and mixing speed and time control is more appropriate within the above range；And it is close to discharge
Room temperature can be completed weighing, briquetting and packaging convenient for weighing and packaging by special production line in the actual production process,
Convenient for large-scale industrial production.
In any of the above-described technical solution, the briquette quality after the titanium additive compacting is 0.5kg/ block, described
It is complete that briquetting freely falls holding from 3m height.
After titanium additive is compacted by 0.5kg/ block quality, briquetting freely falls holding completely from the height of 3m, full
Foot titanium additive packaging, transport, storage and the requirement for the various aspects such as using, and press block-like titanium additive only
Aluminum melt bottom can be sunk to automatically by needing monolith to direct plunge into aluminum melt, carried out Chemical Physics with entire aluminum melt and reacted, make
Titanium elements are spreaded more evenly across into aluminum melt；And it is be easy to cause in packaging, transport and use process if pulvis state
Mass loss, and the titanium additive of pulvis shape is put into the auxiliary that aluminum melt bottom just needs pipeline and gas.
Certainly, mixing speed, mixing time, ballast weight etc. are not limited to above range, in the actual production process, can
To be adjusted as the case may be.
Additional aspect and advantage of the invention will become obviously in following description section, or practice through the invention
Recognize.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the flow chart of the preparation process of titanium additive described in some embodiments of the invention；
Fig. 2 is the flow chart of the preparation process of titanium additive described in a preferred embodiment of the invention.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real
Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
Referring to titanium additive described in Fig. 1 and Fig. 2 description according to some embodiments of the invention and its preparation work
Skill.
The titanium additive that the embodiment of first aspect present invention provides, each component including following mass fraction: titanium
Powder: 28-32 mass parts；Potassium fluoroaluminate: 18-22 mass parts；Potassium fluosilicate: 18-22 mass parts；Potassium fluotitanate: 14-16 mass
Part；Potassium fluoborate: 14-16 mass parts；Activated aluminum powder: 4-6 mass parts；Potassium nitrate: 2-5 mass parts.
The titanium additive that the embodiment of first aspect present invention provides, by optimization of C/C composites, so that titanium elements add
Violent physical-chemical reaction can promptly occur with aluminum melt after agent investment aluminum melt, discharging a large amount of thermal energy keeps melt quick
Heating promotes titanium valve to fuse into aluminum melt and forms alloy, to improve the melting rate of titanium valve；And the melt that reaction generates has
It is higher to spread out performance, the contact area with aluminum melt is increased, dissolution of the aluminum melt to titanium valve is also increased, so as to big
Amplitude, which improves absorption of the aluminum melt to titanium elements, had not only reduced the waste of additive compared to the prior art, but also improved aluminium conjunction
The properties of gold, and production efficiency is improved, production cost has been saved, there is very big market value and dissemination.
Further, titanium elements provide in national standard in many aluminium alloy trades mark as addition element common in aluminium alloy
There must be the content of titanium elements, titanium can form TiAl with aluminium in aluminium alloy3Phase, it is non-spontaneous when becoming aluminum melt solidification and crystallization
Core plays a part of to refine cast sturcture, and then improves the mechanical performance and other performances of aluminium alloy；And titanium provided by the present application
Element additive improves melting rate and absorptivity of the titanium elements in aluminum melt, therefore is conducive to advanced optimize aluminium alloy
Institutional framework, and then advanced optimize the properties of aluminium alloy obtained.
Specifically, in the application, the ingredient of titanium additive mainly divides two large divisions: the metallic element of addition and fluxing
Agent.The metallic element of addition is titanium valve, is the primary raw material of the additive, forms TiAl for fusing into aluminum melt and aluminium3, play
Fine grain effect；Fluxing agent is mainly mixed by various salt, including potassium fluoroaluminate, potassium fluosilicate, potassium fluotitanate, potassium fluoborate,
Potassium nitrate and a small amount of activated aluminum powder, respectively play the role of being respectively as follows:
Potassium fluoroaluminate: when potassium fluoroaluminate in aluminum melt containing high level, the melt paving with higher of generation is reacted
The property opened can increase the contact area of melt and aluminum melt, increase the contact area of titanium valve and aluminum melt；
Potassium fluosilicate: playing heating functioin, and following a series of chemical reactions can be occurred by entering in molten aluminium alloy:
It first decomposes reaction: K2SiF6→SiF4+2KF
Then occur: 3SiF4+4Al→4AlF3+3Si
AlF3+2Al→3AlF
6KF+2Al2O3→3KAlO2+K3AlF6
In aforementioned four reaction, latter three are all exothermic reactions, therefore melt can be made to be rapidly heated, to improve titanium valve
Melt rate；
Potassium fluotitanate and potassium fluoborate: playing heating functioin, following a series of into that can occur in molten aluminium alloy
Chemical reaction:
K2TiF6+2KBF4=TiB2+4KF+5F2
2K2TiF6+2KBF4+ 5Al=TiB2+TiAl3+6KF+4F2+2AlF3
H2+F2=2HF
6KF+2Al2O3=3KAlO2+K3AlF6
These reactions are also all exothermic reactions, can also melt be made to be rapidly heated, to improve the melting rate of titanium valve；
Activated aluminum powder and potassium nitrate: mainly as combustion adjuvant, following chemical reactions can be occurred by entering in molten aluminium alloy:
2Al2O3+4KNO3=4KAlO2+4NO2+O2
4Al+3O2=2Al2O3
The two reactions are also exothermic reaction, are also beneficial to improve melt temperature, and then improve the melting rate of titanium valve.
From the foregoing, it will be observed that titanium additive provided by the present application, by being collocated with each other for various ingredients, and each component is distinguished
Control is in suitable range, so that the chemical reaction of generation releases largely after molten aluminium alloy is added in titanium additive
Heat increases the temperature of melt, and increasing aluminum melt, local heating is rapid to the solubility of titanium elements, and not only, makes titanium valve
Aluminum melt can be quickly fused into, and contains higher potassium fluoroaluminate ingredient in melt again, so that contact of the titanium valve with aluminum melt
Area also greatly increases, and then promotes titanium valve and fuse into aluminum melt, finally greatly improves aluminum melt to the absorptivity of titanium elements.
Preferably, the titanium additive includes each component of following mass fraction: titanium valve: 29-31 mass parts；Fluorine aluminium
Sour potassium: 19-21 mass parts；Potassium fluosilicate: 19-21 mass parts；Potassium fluotitanate: 15-16 mass parts；Potassium fluoborate: 15-16 mass
Part；Activated aluminum powder: 4-6 mass parts；Potassium nitrate: 2-4 mass parts.
It is highly preferred that the titanium additive includes each component of following mass fraction: titanium valve: 29-31 mass parts；Fluorine
Potassium aluminate: 19-20 mass parts；Potassium fluosilicate: 19-20 mass parts；Potassium fluotitanate: 15-16 mass parts；Potassium fluoborate: 15-16 matter
Measure part；Activated aluminum powder: 5 mass parts；Potassium nitrate: 3 mass parts.
The content range of each component is further reduced to above range, can make titanium additive burn-off rate and
Aluminum melt is further enhanced to the absorptivity of titanium elements.
In any of the above-described embodiment, in the component that the titanium additive includes: the granularity of titanium valve is 40-60
Mesh, potassium fluoroaluminate, potassium fluosilicate, potassium fluotitanate, potassium fluoborate, activated aluminum powder and potassium nitrate granularity be 60-80 mesh.
In general, the granularity of additive is thinner, and the absorptivity after molten aluminium alloy is added is higher, but meticulous original
Material can form dust from flying in process of production, can not only deteriorate production environment, will also result in significant loss, so our company
The granularity of titanium valve is controlled other components in the range of 40-60 mesh by finding after test of many times and research by technical staff
Granularity control in the range of 60-80 mesh, not only absorptivity with higher, but also dust from flying can be avoided as much as.
In any of the above-described embodiment, the overall moisture content of the titanium additive is less than 1%.
When titanium additive water content is excessively high, matched aluminum melt air-breathing will lead to after aluminum melt is added, and then dislike
Change aluminum melt quality, when the technical staff of our company has found titanium additive water content less than 1% by test of many times, to aluminium
The quality of melt influences unobvious；And when requiring the water content of titanium additive too low, one side production technology is extremely difficult to
It is required that another aspect each component raw material then will form a large amount of dust when feeding intake, stirring and transporting, and loss of material is caused, disliked
Change operating environment.Therefore, the technical staff of our company is on the basis for having comprehensively considered production cost, production efficiency and product quality
On, by being obtained after test of many times, the overall moisture percentage of titanium additive is controlled in the content range less than 1%
It is more appropriate.
In any of the above-described embodiment, the titanium additive compacting freely falls guarantor from the height of 3m in bulk
It holds complete.
After titanium additive is compacted, and holding is freely fallen completely from the height of 3m, meet titanium additive
Quantitative package transports the requirement for the various aspects such as storing and quantitatively using, and block-like titanium additive is pressed only to need monolith straight
Aluminum melt bottom can be sunk to automatically by connecing in investment aluminum melt, carried out Chemical Physics with entire aluminum melt and reacted, make titanium elements more
It is evenly dispersed into aluminum melt；And mass loss is be easy to cause if pulvis state in packaging, transport and use process,
And the titanium additive of pulvis shape is put into the auxiliary that aluminum melt bottom just needs pipeline and gas.
Titanium additive provided by the present application is described in detail below with reference to some specific embodiments.
Embodiment one
Our company configures the aluminium alloy wheel hub of vehicle formula of the titanium additive of A356 aluminum melt
| Ingredient names | Titanium valve | Potassium fluoroaluminate | Potassium fluosilicate | Potassium fluotitanate | Potassium fluoborate | Activated aluminum powder | Potassium nitrate |
| Mass fraction | 30 | 18 | 18 | 14 | 14 | 4 | 2 |
Embodiment two
Our company configures the formula of the titanium additive of Al-Ti-B alloy aluminum melt
| Ingredient names | Titanium valve | Potassium fluoroaluminate | Potassium fluosilicate | Potassium fluotitanate | Potassium fluoborate | Activated aluminum powder | Potassium nitrate |
| Mass fraction | 28 | 18 | 18 | 14 | 14 | 5 | 3 |
Embodiment three
The formula of the titanium additive of the aluminium alloy ingots of our company's melting configuration
| Ingredient names | Titanium valve | Potassium fluoroaluminate | Potassium fluosilicate | Potassium fluotitanate | Potassium fluoborate | Activated aluminum powder | Potassium nitrate |
| Mass fraction | 28 | 18 | 18 | 15 | 15 | 4 | 2 |
For above three embodiments, test by observing and recording in preparation process and after the completion of preparing and to score
It is found after analysis, the production cycle shortens 5% or more, is up to 95% to the absorptivity of titanium elements, therefore effectively increase production effect
Rate has saved production cost.
As depicted in figs. 1 and 2, the preparation process for the titanium additive that the embodiment of second aspect of the present invention provides, packet
Include following steps:
S30: the mass fraction of the component and each component that include according to the titanium additive weighs raw material；
S40: it in the component investment blender for including by the titanium additive, is stirred；
S50: after stirring, discharging, weighing, briquetting, packaging；
Wherein, the titanium additive includes each component of following mass fraction: titanium valve: 28-32 mass parts；Fluoaluminic acid
Potassium: 18-22 mass parts；Potassium fluosilicate: 18-22 mass parts；Potassium fluotitanate: 14-16 mass parts；Potassium fluoborate: 14-16 mass
Part；Activated aluminum powder: 4-6 mass parts；Potassium nitrate: 2-5 mass parts.
The preparation process for the titanium additive that the embodiment of second aspect of the present invention provides, according to first aspect embodiment
In formula weigh raw material, weighed raw material is put into blender, under suitable humidity and mixing speed, one timing of stirring
Between after take out, then on special production line weigh briquetting packaging, obtain titanium additive investment aluminum melt after
Violent physical-chemical reaction can promptly occur with aluminum melt, discharging a large amount of thermal energy makes melt be rapidly heated, and promotes titanium valve
It fuses into aluminum melt and forms alloy, to improve the melting rate of titanium valve；And melt the spreading out property with higher that reaction generates
Can, the contact area with aluminum melt is increased, dissolution of the aluminum melt to titanium valve is also increased, it is molten so as to increase substantially aluminium
Absorption of the liquid to titanium elements had not only reduced the waste of additive compared to the prior art, but also improved the items of aluminium alloy
Can, and production efficiency is improved, production cost has been saved, there is very big market value and dissemination.
In a preferred embodiment of the invention, the titanium additive includes each component of following mass fraction:
Titanium valve: 29-31 mass parts；Potassium fluoroaluminate: 19-21 mass parts；Potassium fluosilicate: 19-21 mass parts；Potassium fluotitanate: 15-16 mass
Part；Potassium fluoborate: 15-16 mass parts；Activated aluminum powder: 4-6 mass parts；Potassium nitrate: 2-4 mass parts.
In of the invention one preferred embodiment, the titanium additive includes each group of following mass fraction
Point: titanium valve: 29-31 mass parts；Potassium fluoroaluminate: 19-20 mass parts；Potassium fluosilicate: 19-20 mass parts；Potassium fluotitanate: 15-16
Mass parts；Potassium fluoborate: 15-16 mass parts；Activated aluminum powder: 5 mass parts；Potassium nitrate: 3 mass parts.
When ingredient, the content range of each component is further reduced to above range, the molten of titanium additive can be made
Change speed and aluminum melt is further enhanced to the absorptivity of titanium elements.
In an of the invention preferred embodiment, as shown in Fig. 2, before step S30, further includes:
S10: each component that the titanium additive includes is sieved respectively；
Wherein, the granularity for the titanium valve selected after screening is 40-60 mesh, potassium fluoroaluminate, potassium fluosilicate, the fluotitanic acid of selection
Potassium, potassium fluoborate, activated aluminum powder and potassium nitrate granularity be 60-80 mesh.
In general, the granularity of additive is thinner, and the absorptivity after molten aluminium alloy is added is higher, but meticulous original
Material can form dust from flying in process of production, can not only deteriorate production environment, will also result in significant loss, so our company
The granularity of titanium valve is controlled other components in the range of 40-60 mesh by finding after test of many times and research by technical staff
Granularity control in the range of 60-80 mesh, not only absorptivity with higher, but also dust from flying can be avoided as much as.
It is worth noting that above-mentioned each component is all readily available in the market, and still, each component bought in the market
The methods of in, the granularity of some raw materials may not reach requirement, for these components, can be crushed using melting-- screening,
The raw material for meeting granularity requirement is prepared, ingredient is then used further to.
In any of the above-described embodiment, as shown in Fig. 2, before step S40, further includes:
S20: carrying out determination of moisture to each component that the titanium additive includes respectively, to guarantee that the titanium elements add
The water content for each component for adding agent to include is respectively less than 1%.
When titanium additive water content is excessively high, matched aluminum melt air-breathing will lead to after aluminum melt is added, and then dislike
Change aluminum melt quality, when finding the overall moisture content of titanium additive less than 1% by test of many times, to the quality of aluminum solutions
It influences unobvious, does not have water in process of production and enter；And when requiring the overall moisture content of titanium additive too low, a side
Production. art of looking unfamiliar is extremely difficult to require, and another aspect each component raw material then can degradation manipulation environment when feeding intake, stirring and transporting.
Therefore, the technical staff of our company is on the basis of having comprehensively considered production cost, production efficiency and product quality, by multiple
It obtains, the overall moisture percentage of titanium additive is controlled more appropriate in the content range less than 1% after test.
Further, in order to control the overall moisture content of titanium additive less than 1%, the metaplasia that conforms to the principle of simplicity production. art is improved
From the aspect of production efficiency, the control that water content is carried out from each component raw material is the simplest scheme.This is because a variety of groups
Divide the diffusion that moisture occurs during being stirred in blender, i.e. moisture can be low from high-moisture component to water content
Diffusion of components, and overall water content is then basically unchanged and (is only stirred) or be gradually reduced and (dried while stirring
It is dry), and originally when each component moisture difference can be bigger, but finally reach unanimity mostly.Therefore, when each component raw material
When water content is respectively less than 1%, that is, it can guarantee the overall moisture content of titanium additive obtained again smaller than 1%；On the other hand, respectively
When the water content of component raw material is excessively high, bonding is easy in whipping process, it is necessary to moisture is constantly measured in whipping process, very
To needing to carry out baking process, increase process complexity, also the increase production time；In addition, in the actual production process, each group
Divide the water content of raw material also no more than 1%, otherwise will lead to the more difficult progress of production technology, because even all components raw material
Whole water content less than 1%, and the water content of individual components is excessively high, and the water content of other components is accordingly relatively low, when stirring
It can be easy to happen bonding phenomenon, influence the preparation process of titanium additive, the time can also become longer, or even interrupt stirred
Journey.Therefore, it needs to be measured the moisture content of feed components before stirring, to avoid each raw material component water content mistake
It is high.
So the preparation process of titanium additive provided by the present application before stirring first carries out each component raw material
Determination of moisture makes the water content of each component raw material be respectively less than 1%, then again puts into blender each component raw material and stirs
It mixes, both ensure that the overall moisture content of titanium additive obtained less than 1%, and then guarantees titanium additive obtained
Using effect, in turn simplifies the preparation process of titanium additive, and shortens the production cycle.Specifically, halogen can be used
Fast tester for water content measures moisture, and this instrumentation is convenient, market sale is also more.
In any of the above-described embodiment, during stirring, the mixing speed of the blender is 20-30 revs/min, is stirred
The time mixed is 4-6 hours.
In any of the above-described embodiment, step S50 specifically: quantitative weighing, briquetting, sealed package and dress are carried out after stirring
Case.
It is and to avoid gluing to be homogenously mixed together each component that each component, which is put into the purpose that stirs in blender,
Knot, avoids phenomena such as reuniting, can be evenly dispersed when guaranteeing in titanium additive investment molten aluminium alloy, in turn
Uniform physical-chemical reaction occurs, to obtain preferable melting rate and absorptivity；Thus mixing speed and time are to raw material
Mixed process influence very big, the technical staff of our company has found after multiple development test, and mixing speed and time are controlled
It makes more appropriate within the above range；And discharge close to room temperature, it, in the actual production process can be by special convenient for weighing and packaging
The production line of door completes weighing, briquetting and packaging, is convenient for large-scale industrial production.
In any of the above-described embodiment, the briquette quality after the titanium additive compacting is 0.5kg/ block, the pressure
It is complete that block freely falls holding from 3m height.
After titanium additive is compacted by 0.5kg/ block quality, briquetting freely falls holding completely from the height of 3m, full
Foot titanium additive packaging, transport, storage and the requirement for the various aspects such as using, and press block-like titanium additive only
Aluminum melt bottom can be sunk to automatically by needing monolith to direct plunge into aluminum melt, carried out Chemical Physics with entire aluminum melt and reacted, make
Titanium elements are spreaded more evenly across into aluminum melt；And it is be easy to cause in packaging, transport and use process if pulvis state
Mass loss, and the titanium additive of pulvis shape is put into the auxiliary that aluminum melt bottom just needs pipeline and gas.
Certainly, mixing speed, mixing time, ballast weight etc. are not limited to above range, in the actual production process, can
To be adjusted as the case may be.
In conclusion titanium additive provided by the invention, by optimization of C/C composites, so that titanium additive puts into aluminium
Violent physical-chemical reaction can promptly occur after melt with aluminum melt, discharging a large amount of thermal energy makes melt be rapidly heated, and promotees
So that titanium valve is fused into aluminum melt and form alloy, to improve the melting rate of titanium valve；And the melt that reaction generates is with higher
Performance is spread out, the contact area with aluminum melt is increased, dissolution of the aluminum melt to titanium valve is also increased, so as to significantly mention
Absorption of the high aluminum melt to titanium elements had not only reduced the waste of additive compared to the prior art, but also improved each of aluminium alloy
Item performance, and production efficiency is improved, production cost has been saved, there is very big market value and dissemination.
In the present invention, term " first ", " second " are only used for the purpose described, are not understood to indicate or imply phase
To importance；Term " multiple " then refers to two or more, unless otherwise restricted clearly.Term " installation ", " connected ",
The terms such as " connection ", " fixation " shall be understood in a broad sense, for example, " connection " may be a fixed connection, be also possible to detachably connect
It connects, or is integrally connected；" connected " can be directly connected, can also be indirectly connected through an intermediary.For this field
For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the invention
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more of the embodiments or examples with
Suitable mode combines.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (14)
1. a kind of titanium additive, which is characterized in that each component including following mass fraction:
Titanium valve: 28-32 mass parts；
Potassium fluoroaluminate: 18-22 mass parts；
Potassium fluosilicate: 18-22 mass parts；
Potassium fluotitanate: 14-16 mass parts；
Potassium fluoborate: 14-16 mass parts；
Activated aluminum powder: 4-6 mass parts；
Potassium nitrate: 2-5 mass parts.
2. titanium additive according to claim 1, which is characterized in that each component including following mass fraction:
Titanium valve: 29-31 mass parts；
Potassium fluoroaluminate: 19-21 mass parts；
Potassium fluosilicate: 19-21 mass parts；
Potassium fluotitanate: 15-16 mass parts；
Potassium fluoborate: 15-16 mass parts；
Activated aluminum powder: 4-6 mass parts；
Potassium nitrate: 2-4 mass parts.
3. titanium additive according to claim 2, which is characterized in that each component including following mass fraction:
Titanium valve: 29-31 mass parts；
Potassium fluoroaluminate: 19-20 mass parts；
Potassium fluosilicate: 19-20 mass parts；
Potassium fluotitanate: 15-16 mass parts；
Potassium fluoborate: 15-16 mass parts；
Activated aluminum powder: 5 mass parts；
Potassium nitrate: 3 mass parts.
4. titanium additive according to any one of claim 1 to 3, which is characterized in that
In the component that the titanium additive includes: the granularity of titanium valve is 40-60 mesh, potassium fluoroaluminate, potassium fluosilicate, fluorine titanium
Sour potassium, potassium fluoborate, activated aluminum powder and potassium nitrate granularity be 60-80 mesh.
5. titanium additive according to any one of claim 1 to 3, which is characterized in that
The whole water content of the titanium additive is less than 1%.
6. titanium additive according to any one of claim 1 to 3, which is characterized in that
The titanium additive compacting freely falls holding completely in bulk, and from the height of 3m.
7. a kind of preparation process of titanium additive characterized by comprising
The mass fraction of the component and each component that include according to the titanium additive weighs raw material；
The component that the titanium additive includes is put into blender and is stirred；
After stirring, discharging, weighing, briquetting, packaging；
Wherein, the titanium additive includes each component of following mass fraction:
Titanium valve: 28-32 mass parts；
Potassium fluoroaluminate: 18-22 mass parts；
Potassium fluosilicate: 18-22 mass parts；
Potassium fluotitanate: 14-16 mass parts；
Potassium fluoborate: 14-16 mass parts；
Activated aluminum powder: 4-6 mass parts；
Potassium nitrate: 2-5 mass parts.
8. the preparation process of titanium additive according to claim 7, which is characterized in that the titanium additive packet
Include each component of following mass fraction:
Titanium valve: 29-31 mass parts；
Potassium fluoroaluminate: 19-21 mass parts；
Potassium fluosilicate: 19-21 mass parts；
Potassium fluotitanate: 15-16 mass parts；
Potassium fluoborate: 15-16 mass parts；
Activated aluminum powder: 4-6 mass parts；
Potassium nitrate: 2-4 mass parts.
9. the preparation process of titanium additive according to claim 8, which is characterized in that the titanium additive packet
Include each component of following mass fraction:
Titanium valve: 29-31 mass parts；
Potassium fluoroaluminate: 19-20 mass parts；
Potassium fluosilicate: 19-20 mass parts；
Potassium fluotitanate: 15-16 mass parts；
Potassium fluoborate: 15-16 mass parts；
Activated aluminum powder: 5 mass parts；
Potassium nitrate: 3 mass parts.
10. the preparation process of titanium additive according to any one of claims 7 to 9, which is characterized in that
Before the mass fraction of the component and each component that include according to the titanium additive weighs raw material, further includes:
The each component that the titanium additive includes is sieved respectively, the granularity for the titanium valve selected after screening is 40-
60 mesh, the potassium fluoroaluminate of selection, potassium fluosilicate, potassium fluotitanate, potassium fluoborate, activated aluminum powder and potassium nitrate granularity be 60-
80 mesh.
11. the preparation process of titanium additive according to any one of claims 7 to 9, which is characterized in that
Before being stirred in the component investment blender for including by the titanium additive, further includes:
The each component for including to the titanium additive carries out determination of moisture, to guarantee that the titanium additive includes each
The water content of component is respectively less than 1%.
12. the preparation process of titanium additive according to any one of claims 7 to 9, which is characterized in that
During stirring, the mixing speed of the blender is 20-30 revs/min, and the time of stirring is 4-6 hours.
13. the preparation process of titanium additive according to any one of claims 7 to 9, which is characterized in that
After stirring the step of discharging, weighing, briquetting, packaging specifically:
Quantitative weighing, briquetting, sealed package and vanning are carried out after stirring.
14. the preparation process of titanium additive according to claim 13, which is characterized in that
Briquette quality after the titanium additive compacting is 0.5kg/ block, and the briquetting freely falls from 3m height and kept
It is whole.
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| CN109112340A (en) * | 2018-11-13 | 2019-01-01 | 河北四通新型金属材料股份有限公司 | A kind of high-content Ti, B grain graining agent, preparation method and application method |
| CN110218886B (en) * | 2019-06-27 | 2021-03-23 | 河北四通新型金属材料股份有限公司 | Copper element additive for aluminum alloy and production method thereof |
| CN111101006A (en) * | 2020-01-06 | 2020-05-05 | 河北四通新型金属材料股份有限公司 | Production process of uniform intermediate alloy cast strip |
| CN111139382B (en) * | 2020-02-12 | 2021-10-22 | 立中四通轻合金集团股份有限公司 | Manganese element additive for aluminum magnesium alloy and production method thereof |
| CN111235416A (en) * | 2020-04-07 | 2020-06-05 | 昆明冶金研究院有限公司 | Efficient green aluminum alloy additive and preparation method and application thereof |
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| CN105039784A (en) * | 2015-08-28 | 2015-11-11 | 付黎 | Fine powder titanium preparation for producing aluminium alloy and preparation method for fine powder titanium preparation |
| CN105256179A (en) * | 2015-11-07 | 2016-01-20 | 湖南创元铝业有限公司 | Fast-melting silicon fluxing agent, fast-melting silicon and preparation method for fast-melting silicon |
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| CN1105708A (en) * | 1994-01-18 | 1995-07-26 | 凌云甦 | Cleaning method for aluminium alloy smelting furnace and special cleaning agent |
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