CN110343929A - A kind of aluminium molybdenum vanadium intermediate alloy and preparation method thereof - Google Patents
A kind of aluminium molybdenum vanadium intermediate alloy and preparation method thereof Download PDFInfo
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- CN110343929A CN110343929A CN201910777849.2A CN201910777849A CN110343929A CN 110343929 A CN110343929 A CN 110343929A CN 201910777849 A CN201910777849 A CN 201910777849A CN 110343929 A CN110343929 A CN 110343929A
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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
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/02—Alloys based on vanadium, niobium, or tantalum
- C22C27/025—Alloys based on vanadium, niobium, or tantalum alloys based on vanadium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/04—Alloys based on tungsten or molybdenum
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
Abstract
The present invention provides a kind of aluminium molybdenum vanadium intermediate alloys and preparation method thereof, are related to technical field of metal material.Aluminium molybdenum vanadium intermediate alloy provided by the invention, based on mass content, including 17.0~22.0% Al, 40.0~42.0% Mo, 38.0~41.0% V.The present invention passes through the control of ingredient and content, so that aluminium molybdenum vanadium intermediate alloy is had lesser component segregation, in smelting titanium alloy, facilitate titanium alloy component homogenization, burden process when preventing component segregation, and optimizing titanium alloy smelting, can be realized the accurate dosing in production process.The present invention provides the preparation methods of the aluminium molybdenum vanadium intermediate alloy, preparation method provided by the invention can be improved the uniform and stable property of aluminium molybdenum vanadium intermediate alloy ingredient, and reduce the impurity contents such as O, N, and process is simple, it is easily controllable, it is suitable for large-scale industrial production.
Description
Technical field
The present invention relates to technical field of metal material, in particular to a kind of aluminium molybdenum vanadium intermediate alloy and preparation method thereof.
Background technique
Titanium and its alloy have excellent performance, as specific strength is high, corrosion-resistant, high temperature resistant and good composite technology
Can be equal, noticeable material is had become in modern industry grade science and technology field, aerospace, aviation, petroleum, chemical industry,
The various fields such as light industry, metallurgy, machinery and the energy are widely used.
Aluminium, molybdenum, vanadium are the primary alloy constituents of titanium alloy, are usually added in titanium alloy in the form of intermediate alloy, mainly
The titanium alloy trade mark of application is TA11 and TC16.TA11 is applied to aerospace industry, is generally used for production aircraft steam turbine leaf
Piece；TC16 is the titanium alloy that can be worked at 400 DEG C or more, the fastener being generally used on production aircraft.The quality of intermediate alloy
Superiority and inferiority directly affects titanium alloy performance.
Currently, titanium alloy intermediate alloy mostly uses greatly bianry alloy, to reach performance requirement when use, need to add several
Kind bianry alloy, thus it is be easy to cause the unstable of properties of product, difficulty is brought to production titanium alloy pilot process.By using
Ternary alloy three-partalloy as intermediate alloy, can with this problem of effective solution, while each ingredient of ternary alloy three-partalloy can according to require into
Row is adjusted, easy to operate, facilitates the preparation of titanium alloy, this purpose, which is carried out, has very long-range meaning.
It is prepared currently, the preparation method of aluminium molybdenum vanadium ternary alloy three-partalloy generallys use the outer aluminothermic process of furnace, such as
CN200310119084.2 discloses a kind of aluminium molybdenum vanadium intermediate alloy and preparation method thereof, preparation process are as follows: with aluminium is reduction
Agent, vanadic anhydride and molybdenum trioxide are oxidant, and the another calcirm-fluoride that is added is slag former, and potassium chlorate is that exothermic mixture igniting is smelted,
To which aluminium molybdenum vanadium alloy be made.The advantages that the method has equipment simple, easy to operate, small investment, the disadvantage is that alloy is uniform
Property it is poor, the gaseous impurities such as impurity especially oxygen and nitrogen can not be controlled, and nitrogen will increase the brittleness of titanium alloy, directly it is right
The quality of titanium alloy causes influence.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of aluminium molybdenum vanadium intermediate alloys and preparation method thereof.The present invention mentions
The aluminium molybdenum vanadium intermediate alloy of confession has lesser component segregation, in smelting titanium alloy, facilitates alloying component homogenization.This hair
The preparation method of bright offer can be improved the uniform and stable property of aluminium molybdenum vanadium intermediate alloy ingredient, and reduce impurity content, and process
Simply, easily controllable.
In order to achieve the above-mentioned object of the invention, the present invention the following technical schemes are provided:
The present invention provides a kind of aluminium molybdenum vanadium intermediate alloys, based on mass content, including 17.0~22.0% Al, and 40.0
~42.0% Mo, 38.0~41.0% V.
Preferably, the aluminium molybdenum vanadium intermediate alloy, based on mass content, including 18.0~21.0% Al, 41.0~
42.0% Mo, 39.0~41.0% V.
Preferably, the aluminium molybdenum vanadium intermediate alloy, based on mass content, including 19.0% Al, 41.0% Mo,
40.0% V.
The present invention provides the preparation methods of aluminium molybdenum vanadium intermediate alloy described in above scheme, comprising the following steps:
(1) aluminium and molybdenum trioxide are mixed and carries out thermit reaction, obtain aluminium molybdenum level-one alloy after cooling；
(2) aluminium and vanadic anhydride are mixed and carries out thermit reaction, obtain aluminium vanadium level-one alloy after cooling；
(3) the aluminium molybdenum level-one alloy, aluminium vanadium level-one alloy and aluminium are subjected to vacuum melting, obtain the aluminium molybdenum after cooling
Vanadium intermediate alloy；
The limitation of the not no time sequencing of the step (1) and step (2).
Preferably, the mass ratio of aluminium and molybdenum trioxide is (0.0934~1.061) in the step (1): (1.815~
2.012)；The aluminium and molybdenum trioxide are dried before mixing；The temperature of the drying is 100~120 DEG C, and the time is greater than
6h。
Preferably, the temperature of thermit reaction is 1650~1750 DEG C in the step (1), and the time is 33~42s.
Preferably, the mass ratio of aluminium and vanadic anhydride is (0.945~1.063) in the step (2): (1.586~
1.755)；The aluminium and vanadic anhydride are dried before mixing；The temperature of the drying is 100~120 DEG C, and the time is greater than
6h。
Preferably, the temperature of thermit reaction is 1750~1850 DEG C in the step (2), and the time is 21~35s.
Preferably, in the step (3) vacuum degree of vacuum melting less than 10 pas.
Preferably, the vacuum melting in the step (3) includes the fusing and refining successively carried out；The refining process
Temperature is 1950~2000 DEG C, and the time is 5~10min.
The present invention provides a kind of aluminium molybdenum vanadium intermediate alloys, based on mass content, including 17.0~22.0% Al, and 40.0
~42.0% Mo, 38.0~41.0% V.The present invention passes through the control of ingredient and content, has aluminium molybdenum vanadium intermediate alloy
Lesser component segregation facilitates titanium alloy component homogenization, prevents component segregation in smelting titanium alloy, and optimizes titanium conjunction
Burden process when golden melting can be realized the accurate dosing in production process.
The present invention provides the preparation methods of the aluminium molybdenum vanadium intermediate alloy.Preparation method provided by the invention can be improved
The uniform and stable property of aluminium molybdenum vanadium intermediate alloy ingredient, and the impurity contents such as O, N are reduced, and process is simple, it is easily controllable, it is suitable for
Large-scale industrial production.
Specific embodiment
The present invention provides a kind of aluminium molybdenum vanadium intermediate alloys, based on mass content, including 17.0~22.0% Al, and 40.0
~42.0% Mo, 38.0~41.0% V；Preferably include 18.0~21.0% Al, 41.0~42.0% Mo, 39.0~
41.0% V；It more preferably include 19.0% Al, 41.0% Mo, 40.0% V.
The present invention passes through the control of ingredient and content, so that aluminium molybdenum vanadium intermediate alloy is had lesser component segregation, in melting
When titanium alloy, facilitate titanium alloy component homogenization, burden process when preventing component segregation, and optimizing titanium alloy smelting, energy
It enough realizes the accurate dosing in production process, facilitates the preparation of titanium alloy.
The present invention provides the preparation methods of aluminium molybdenum vanadium intermediate alloy described in above scheme, comprising the following steps:
(1) aluminium and molybdenum trioxide are mixed and carries out thermit reaction, obtain aluminium molybdenum level-one alloy after cooling；
(2) aluminium and vanadic anhydride are mixed and carries out thermit reaction, obtain aluminium vanadium level-one alloy after cooling；
(3) the aluminium molybdenum level-one alloy, aluminium vanadium level-one alloy and aluminium are subjected to vacuum melting, obtain the aluminium molybdenum after cooling
Vanadium intermediate alloy；
The limitation of the not no time sequencing of the step (1) and step (2).
Aluminium and molybdenum trioxide are mixed and carry out thermit reaction by the present invention, obtain aluminium molybdenum level-one alloy after cooling.In the present invention
In, the mass ratio of the aluminium and molybdenum trioxide is preferably (0.0934~1.061): (1.815~2.012), more preferably
(0.095~1): (1.9~2), most preferably 1:1.97.The present invention passes through the mass ratio of control aluminium and molybdenum trioxide, to control
The mass ratio of aluminium molybdenum level-one Aluminum in Alloy and molybdenum processed, for example, in the specific embodiment of the invention, the mass ratio of aluminium and molybdenum trioxide
It is set as 1:1.97,80 level-one alloy of aluminium molybdenum is obtained after thermit reaction (i.e. the mass percentage of molybdenum is 80%).At this
In invention, the aluminium and molybdenum trioxide are preferably powdery.In the present invention, the aluminium and molybdenum trioxide before mixing preferably into
Row drying；The temperature of the drying is preferably 100~120 DEG C, and more preferably 110 DEG C, the time is preferably greater than 6h, more preferably
12h.In the present invention, the drying can remove the water in aluminium and molybdenum trioxide, prevent occurring hydrogen evolution phenomenon in smelting process.
The method that the present invention mixes the aluminium and molybdenum trioxide does not require particularly, using method well known in the art guarantee aluminium and
Molybdenum trioxide is uniformly mixed；In the specific embodiment of the invention, the mixing is preferably carried out in V-type batch mixer；It is described
The mixing rate of batch mixer is preferably 100~140r/min, and more preferably 110~130r/min, mixing time is preferably 4min.
The present invention comes into full contact with aluminium and molybdenum trioxide by mixing, convenient for the progress of thermit reaction.
Thermit reaction is carried out after aluminium and molybdenum trioxide mixing.The present invention, which preferably lights mixed aluminium and molybdenum trioxide, to draw
Send out thermit reaction；The present invention does not require the operation lighted particularly, using initiation thermit reaction well known in the art
Ignition way.In the present invention, the temperature of the thermit reaction is preferably 1650~1750 DEG C, more preferably 1680~
1720 DEG C, the time is preferably 33~42s, more preferably 35~40s.The present invention is to the reaction unit of the thermit reaction without spy
Other requirement, using thermit reaction device well known in the art；In the specific embodiment of the invention, the thermit reaction is excellent
Be selected in smelting furnace and carry out, the furnace body of the smelting furnace be preferably magnesia brick build furnace body, aluminum oxide sintering furnace body or
The furnace body that graphite plate is built.In the present invention, during the thermit reaction, molybdenum trioxide is reduced to by aluminium as reducing agent
Metal simple-substance molybdenum, aluminium are oxidized to aluminium oxide, and discharging a large amount of thermal energy melts metal (metal simple-substance molybdenum and excessive aluminium)
Form aluminium molybdenum alloys liquid；The aluminium oxide that aluminium is oxidized to form floats on aluminium alloy surface, separates and removes with aluminium alloy.Thermit reaction
After obtaining aluminium molybdenum alloys liquid, the present invention cools down the aluminium molybdenum alloys liquid.In the present invention, the cooling is preferably with furnace
It is cooling；It comes out of the stove to obtain aluminium molybdenum level-one alloy after cooling.
Aluminium and vanadic anhydride are mixed and carry out thermit reaction by the present invention, obtain aluminium vanadium level-one alloy after cooling.In this hair
In bright, the mass ratio of the aluminium and vanadic anhydride is preferably (0.945~1.063): (1.586~1.755), more preferably
(0.98~1.05): (1.6~1.7), most preferably 1:1.69.The present invention passes through the mass ratio of control aluminium and vanadic anhydride,
To control the mass ratio of aluminium vanadium level-one Aluminum in Alloy and vanadium, for example, in the specific embodiment of the invention, aluminium and vanadic anhydride
Mass ratio be set as 1:1.69, obtaining 85 level-one alloy of aluminium vanadium by thermit reaction, (i.e. the mass percentage of vanadium is
85%).In the present invention, the aluminium and vanadic anhydride are preferably powdery.In the present invention, the aluminium and three vanadium pentoxides exist
It is preferably dried before mixing；The temperature of the drying is preferably 100~120 DEG C, and more preferably 110 DEG C, the time is preferably big
In 6h, more preferably 12h.In the present invention, the drying can remove the water in aluminium and molybdenum trioxide, prevent in smelting process
There is hydrogen evolution phenomenon.In the present invention, the aluminium and the method for vanadic anhydride mixing are same as above scheme (aluminium and molybdenum trioxide
Mixing), details are not described herein.The present invention comes into full contact with aluminium and vanadic anhydride by mixing, convenient for thermit reaction into
Row.
Thermit reaction is carried out after aluminium and vanadic anhydride mixing.In the present invention, the temperature of the thermit reaction is preferably
1750~1850 DEG C, more preferably 1780~1830 DEG C, the time is preferably 21~35s, more preferably 25~30s.In the present invention
In, the operation of the aluminium and vanadic anhydride progress thermit reaction and device are same as the above scheme (aluminothermy of aluminium and molybdenum trioxide
Reaction), details are not described herein.In the present invention, during the thermit reaction, aluminium is as reducing agent, also by vanadic anhydride
It originally was metal simple-substance vanadium, aluminium is oxidized to aluminium oxide, and discharges a large amount of thermal energy and make metal (metal simple-substance vanadium and excessive aluminium)
Fusing forms aluminum-vanadium alloy liquid；The aluminium oxide that aluminium is oxidized to form floats on aluminium alloy surface, separates and removes with aluminium alloy.Aluminothermy
After reaction obtains aluminum-vanadium alloy liquid, the present invention cools down the aluminium alloy.In the present invention, the cooling is preferably with furnace
It is cooling；It comes out of the stove to obtain aluminium vanadium level-one alloy after cooling.
After obtaining aluminium molybdenum level-one alloy and aluminium vanadium level-one alloy, the present invention closes the aluminium molybdenum level-one alloy, aluminium vanadium level-one
Gold and aluminium carry out vacuum melting, obtain the aluminium molybdenum vanadium intermediate alloy after cooling.Before carrying out vacuum melting, the present invention is preferred
The aluminium molybdenum level-one alloy and aluminium vanadium level-one alloy are successively subjected to finishing, breaking and constituent analysis；The present invention is broken to the finishing
Broken and constituent analysis method does not require particularly, using correlation method well known in the art.In the present invention, described
The additional amount of aluminium, aluminium molybdenum level-one alloy and aluminium vanadium level-one alloy is according to aluminium molybdenum level-one alloy and the conjunction of aluminium vanadium level-one in vacuum melting
The composition analysis result of gold combines the mass content of each metallic element in required aluminium molybdenum vanadium intermediate alloy to be determined；In the present invention
In specific embodiment, the aluminium is added preferably in the form of aluminium shot.In the present invention, the vacuum melting is preferably in intermediate frequency vacuum
It is carried out in induction furnace；The vacuum degree of the vacuum melting is preferably smaller than 10 pas；The vacuum melting preferably under protective atmosphere into
Row, the protective atmosphere is preferably argon gas.In the present invention, the vacuum melting preferably includes the fusing and essence successively carried out
Refining.In the present invention, the fusing is particularly preferred as: the power of the intermediate frequency vaccum sensitive stove being adjusted to initial power and starts to add
Heat, is then increased to transition power for power and is heated to metal and start to melt；Power is increased to firm power again and is heated to gold
Belong to all fusings, obtains blend melt.In the present invention, the initial power is preferably 20~25kW, more preferably 20~
22kW；The transition power is preferably 50~70kW, more preferably 58~70kW；The firm power is preferably 88~100kW,
More preferably 92~100kW.Aluminium molybdenum level-one alloy, aluminium vanadium level-one alloy and aluminium fusing after, the present invention by gained blend melt into
Row refining.In the present invention, the temperature of the refining is preferably 1950~2000 DEG C, and more preferably 1960~1980 DEG C, the time
Preferably 5~10min, more preferably 6~8min.In the present invention, in the refining process, the power of intermediate frequency vaccum sensitive stove
Preferably 92~100kW, more preferably 100kW.In the present invention, the impurity that the refining can remove in blend melt is gentle
Body obtains pure aluminium alloy.
After vacuum melting, the present invention cools down gained aluminium alloy.In the present invention, after the cooling is preferably poured
Furnace cooling；The present invention does not require the operation of the casting particularly, using pouring procedure well known in the art；Institute
Stating cooling final temperature is preferably 150 DEG C or less.It comes out of the stove after cooling, obtains aluminium molybdenum vanadium intermediate alloy.
The present invention provides the preparation methods of aluminium molybdenum vanadium intermediate alloy described above.Preparation method provided by the invention can
The uniform and stable property of aluminium molybdenum vanadium intermediate alloy ingredient is improved, and reduces the impurity contents such as O, N, and process is simple, it is easily controllable, it fits
For large-scale industrial production.
Aluminium molybdenum vanadium intermediate alloy provided by the invention and preparation method thereof is described in detail below with reference to embodiment,
But they cannot be interpreted as limiting the scope of the present invention.
Embodiment 1
One, aluminothermy smelting process
(1) aluminium powder, molybdenum trioxide and vanadic anhydride are dried, 110 DEG C of drying temperature, drying time 12 hours.
(2) calculate aluminothermy smelting process alloy mass proportion: aluminium powder is 1:1.97 than molybdenum trioxide；Aluminium powder is than five oxidations two
Vanadium is 1:1.69.
(3) by aluminium powder and molybdenum trioxide, aluminium powder and vanadic anhydride be respectively charged into batch mixer with 120r/min rate into
Row mixing 4min, mixing requirement: each raw material must be sufficiently mixed uniformly, guarantee that contact is abundant between raw material.
(4) mixed aluminium powder and molybdenum trioxide, aluminium powder and vanadic anhydride are preheated to charging temperature respectively is 43 DEG C,
Igniting is smelted, and is come out of the stove after 24 hours, is obtained 80 level-one alloy of aluminium molybdenum, 85 level-one alloy of aluminium vanadium.
Two, Vacuum Melting matches
After obtaining 80 level-one alloy of aluminium molybdenum, 85 level-one alloy of aluminium vanadium, by its finishing, breaking, melting is calculated after analysis ingredient
Journey proportion: aluminium shot 2.30kg, 80 level-one alloy 29.46kg of aluminium molybdenum, 85 level-one alloy 28.24kg of aluminium vanadium.
Three, prepare before intermediate frequency vaccum sensitive stove power transmission
(1) water circulating pump is opened, checks that pipeline has No leakage, adjusts that each road water operation is appropriate, pressure is suitable.
(2) electric system is checked, if it is normal, if any exception, on-call maintenance.
(3) confirm peep hole glass transparent situation, it is such as bad, it to open lid and wipe or polished with sand paper, after reinstalling,
Twisting positioning hand button, positioning will flexibly, gland good seal.
Four, melting
(1) it vacuumizes, starts mechanical pump, lobe pump, kept for 15 minutes.When vacuum display device registration is less than 10Pa, stop
It only vacuumizes, starts power transmission and heat melting；
(2) power transmission, initial power 20kW；
(3) after twenty minutes, power is adjusted to 60kW；
(4) after seeing alloy melting, power is adjusted to 90kW；
(5) after alloy is melting down, power is properly increased to 100kW, is refined 8 minutes at 1980 DEG C, again by smelting furnace
10 pas are evacuated to, gaseous impurity in melt, casting are removed.
Five, it comes out of the stove within cooling 150 minutes, obtains aluminium molybdenum vanadium intermediate alloy
It can be observed that the dimmed red slow fusing of waiting a moment of alloy, aluminium alloy is shinny in fusion process, become clear.
Chemical component point is carried out to position sample at the one of aluminium molybdenum vanadium intermediate alloy ingot (cylindrical body) manufactured in the present embodiment
Analysis, obtains that the results are shown in Table 1.As it can be seen from table 1 aluminium molybdenum vanadium intermediate alloy C, O, N impurity content manufactured in the present embodiment
Lower, Fe, Si therein are the inevitable impurity that raw material is brought into.
It is sampled at aluminium molybdenum vanadium intermediate alloy ingot (cylindrical body) different location manufactured in the present embodiment, carries out chemical component point
Analysis, takes two o'clock from alloy pig upper surface, and number is 1 and 2 respectively, and alloy pig lower surface takes two o'clock, and number is 3 and 4, alloy respectively
Position takes two o'clock among ingot, and number is 5 and 6 to carry out constituent analyses respectively, obtains that the results are shown in Table 2.From table 2 it can be seen that
Aluminium molybdenum vanadium intermediate alloy ingredient manufactured in the present embodiment is uniform and stable, segregation-free.
Embodiment 2
One, aluminothermy smelting process
(1) aluminium powder, molybdenum trioxide and vanadic anhydride are dried, 110 DEG C of drying temperature, drying time 12 hours.
(2) calculate aluminothermy smelting process alloy mass proportion: aluminium powder is 1:1.97 than molybdenum trioxide；Aluminium powder is than five oxidations two
Vanadium is 1:1.69.
(3) by aluminium powder and molybdenum trioxide, aluminium powder and vanadic anhydride be respectively charged into batch mixer with 120r/min rate into
Row mixing 4min, mixing requirement: each raw material must be sufficiently mixed uniformly, guarantee that contact is abundant between raw material.
(4) mixed aluminium powder and molybdenum trioxide, aluminium powder and vanadic anhydride are preheated to charging temperature respectively is 43 DEG C,
Igniting is smelted, and is come out of the stove after 24 hours, is obtained 80 level-one alloy of aluminium molybdenum, 85 level-one alloy of aluminium vanadium.
Two, Vacuum Melting matches
After obtaining 85 level-one alloy of 80 level-one alloy of aluminium molybdenum and aluminium vanadium, by its finishing, breaking, melting is calculated after analysis ingredient
Process proportion: aluminium shot 0.52kg, 80 level-one alloy 30.54kg of aluminium molybdenum, 85 level-one alloy 28.94kg of aluminium vanadium.
Three, prepare before intermediate frequency vaccum sensitive stove power transmission
(1) water circulating pump is opened, checks that pipeline has No leakage, adjusts that each road water operation is appropriate, pressure is suitable.
(2) electric system is checked, if it is normal, if any exception, on-call maintenance.
(3) confirm peep hole glass transparent situation, it is such as bad, it to open lid and wipe or polished with sand paper, after reinstalling,
Twisting positioning hand button, positioning will flexibly, gland good seal.
Four, melting
(1) it vacuumizes, starts mechanical pump, lobe pump, kept for 15 minutes.When vacuum display device registration is less than 10Pa, stop
It only vacuumizes, starts power transmission and heat melting；
(2) power transmission, initial power 20kW；
(3) after twenty minutes, power is adjusted to 60kW；
(4) after seeing that alloy melts, power is adjusted to 90kW；
(5) after alloy is melting down, power is properly increased to 100kW, is refined 10 minutes at 1950 DEG C, again by smelting furnace
10 pas are evacuated to, gaseous impurity in melt, casting are removed.
Five, it comes out of the stove within cooling 150 minutes, obtains aluminium molybdenum vanadium intermediate alloy
It can be observed that the dimmed red slow fusing of waiting a moment of alloy, aluminium alloy is shinny in fusion process, become clear.
To position at the one of aluminium molybdenum vanadium intermediate alloy ingot (cylindrical body) manufactured in the present embodiment (with 1 sample position of embodiment
Locate identical) sampling carries out chemical composition analysis, obtain that the results are shown in Table 1.
Aluminium molybdenum vanadium intermediate alloy ingot (cylindrical body) different parts manufactured in the present embodiment are sampled using the method for embodiment 1
Chemical composition analysis is carried out, obtains result as indicated at 3.From table 3 it can be seen that aluminium molybdenum vanadium intermediate alloy manufactured in the present embodiment at
Divide uniform and stable, segregation-free.
Embodiment 3
One, aluminothermy smelting process
(1) aluminium powder, molybdenum trioxide and vanadic anhydride are dried, 110 DEG C of drying temperature, drying time 12 hours.
(2) calculate aluminothermy smelting process alloy mass proportion: aluminium powder is 1:1.97 than molybdenum trioxide；Aluminium powder is than five oxidations two
Vanadium is 1:1.69.
(3) by aluminium powder and molybdenum trioxide, aluminium powder and vanadic anhydride be respectively charged into batch mixer with 120r/min rate into
Row mixing 4min, mixing requirement: each raw material must be sufficiently mixed uniformly, guarantee that contact is abundant between raw material.
(4) mixed aluminium powder and molybdenum trioxide, aluminium powder and vanadic anhydride are preheated to charging temperature respectively is 43 DEG C,
Igniting is smelted, and is come out of the stove after 24 hours, is obtained 80 level-one alloy of aluminium molybdenum, 85 level-one alloy of aluminium vanadium.
Two, Vacuum Melting matches
After obtaining 80 level-one alloy of aluminium molybdenum, 85 level-one alloy of aluminium vanadium, by its finishing, breaking, melting is calculated after analysis ingredient
Journey proportion: aluminium shot 4.43kg, 80 level-one alloy 28.74kg of aluminium molybdenum, 85 level-one alloy 26.82kg of aluminium vanadium.
Three, prepare before intermediate frequency vaccum sensitive stove power transmission
(1) water circulating pump is opened, checks that pipeline has No leakage, adjusts that each road water operation is appropriate, pressure is suitable.
(2) electric system is checked, if it is normal, if any exception, on-call maintenance.
(3) confirm peep hole glass transparent situation, it is such as bad, it to open lid and wipe or polished with sand paper, after reinstalling,
Twisting positioning hand button, positioning will flexibly, gland good seal.
Four, melting
(1) it vacuumizes, starts mechanical pump, lobe pump, kept for 15 minutes.When vacuum display device registration is less than 10Pa, stop
It only vacuumizes, starts power transmission and heat melting；
(2) power transmission, initial power 20kW；
(3) after twenty minutes, power is adjusted to 60kW；
(4) after seeing that alloy melts, power is adjusted to 90kW；
(5) after alloy is melting down, power is properly increased to 100kW, is refined 5 minutes at 2000 DEG C, again by smelting furnace
10 pas are evacuated to, gaseous impurity in melt, casting are removed.
Five, it comes out of the stove within cooling 150 minutes, obtains aluminium molybdenum vanadium intermediate alloy
It can be observed that the dimmed red slow fusing of waiting a moment of alloy, aluminium alloy is shinny in fusion process, become clear.
To position at the one of aluminium molybdenum vanadium intermediate alloy ingot (cylindrical body) manufactured in the present embodiment (with 1 sample position of embodiment
Locate identical) sampling carries out chemical composition analysis, obtain that the results are shown in Table 1.
Aluminium molybdenum vanadium intermediate alloy ingot (cylindrical body) different parts manufactured in the present embodiment are sampled using the method for embodiment 1
Chemical composition analysis is carried out, obtains result as indicated at 4.From table 4, it can be seen that aluminium molybdenum vanadium intermediate alloy manufactured in the present embodiment at
Divide uniform and stable, segregation-free.
Embodiment 4
One, aluminothermy smelting process
(1) aluminium powder, molybdenum trioxide and vanadic anhydride are dried, 110 DEG C of drying temperature, drying time 12 hours.
(2) calculate aluminothermy smelting process alloy mass proportion: aluminium powder is 1:1.97 than molybdenum trioxide；Aluminium powder is than five oxidations two
Vanadium is 1:1.69.
(3) by aluminium powder and molybdenum trioxide, aluminium powder and vanadic anhydride be respectively charged into batch mixer with 120r/min rate into
Row mixing 4min, mixing requirement: each raw material must be sufficiently mixed uniformly, guarantee that contact is abundant between raw material.
(4) mixed aluminium powder and molybdenum trioxide, aluminium powder and vanadic anhydride are preheated to charging temperature respectively is 43 DEG C,
Igniting is smelted, and is come out of the stove after 24 hours, is obtained 80 level-one of aluminium molybdenum, 85 level-one alloy of aluminium vanadium.
Two, Vacuum Melting matches
After obtaining 80 level-one of aluminium molybdenum, 85 level-one alloy of aluminium vanadium, fusion process is calculated by its finishing, breaking, after analysis ingredient and is matched
Than: aluminium shot 6.41kg, 80 level-one alloy 29.46kg of aluminium molybdenum, 85 level-one alloy 28.94kg of aluminium vanadium.
Three, prepare before intermediate frequency vaccum sensitive stove power transmission
(1) water circulating pump is opened, checks that pipeline has No leakage, adjusts that each road water operation is appropriate, pressure is suitable.
(2) electric system is checked, if it is normal, if any exception, on-call maintenance.
(3) confirm peep hole glass transparent situation, it is such as bad, it to open lid and wipe or polished with sand paper, after reinstalling,
Twisting positioning hand button, positioning will flexibly, gland good seal.
Four, melting
(1) it vacuumizes, starts mechanical pump, lobe pump, kept for 15 minutes.When vacuum display device registration is less than 10Pa, stop
It only vacuumizes, starts power transmission and heat melting；
(2) power transmission, initial power 20kW；
(3) after twenty minutes, power is adjusted to 60kW；
(4) after seeing that alloy melts, power is adjusted to 90kW；
(5) after alloy is melting down, power is properly increased to 100kW, is refined 9 minutes at 1960 DEG C, again by smelting furnace
10 pas are evacuated to, gaseous impurity in melt, casting are removed.
Five, it comes out of the stove within cooling 150 minutes, obtains aluminium molybdenum vanadium intermediate alloy
It can be observed that the dimmed red slow fusing of waiting a moment of alloy, aluminium alloy is shinny in fusion process, become clear.
Chemical composition analysis is carried out to aluminium molybdenum vanadium intermediate alloy manufactured in the present embodiment, obtains that the results are shown in Table 1.
Aluminium molybdenum vanadium intermediate alloy ingot (cylindrical body) different parts manufactured in the present embodiment are sampled using the method for embodiment 1
Chemical composition analysis is carried out, obtains result as figure 5 illustrates.As can be seen from Table 5, aluminium molybdenum vanadium intermediate alloy manufactured in the present embodiment at
Divide uniform and stable, segregation-free.
Embodiment 5
One, aluminothermy smelting process
(1) aluminium powder, molybdenum trioxide and vanadic anhydride are dried, 110 DEG C of drying temperature, drying time 12 hours.
(2) calculate aluminothermy smelting process alloy mass proportion: aluminium powder is 1:1.97 than molybdenum trioxide；Aluminium powder is than five oxidations two
Vanadium is 1:1.69.
(3) by aluminium powder and molybdenum trioxide, aluminium powder and vanadic anhydride be respectively charged into batch mixer with 120r/min rate into
Row mixing 4min, mixing requirement: each raw material must be sufficiently mixed uniformly, guarantee that contact is abundant between raw material.
(4) mixed aluminium powder and molybdenum trioxide, aluminium powder and vanadic anhydride are preheated to charging temperature respectively is 43 DEG C,
Igniting is smelted, and is come out of the stove after 24 hours, is obtained 80 level-one alloy of aluminium molybdenum, 85 level-one alloy of aluminium vanadium.
Two, Vacuum Melting matches
After obtaining 80 level-one alloy of aluminium molybdenum, 85 level-one alloy of aluminium vanadium, by its finishing, breaking, melting is calculated after analysis ingredient
Journey proportion: aluminium shot 3.72kg, 80 level-one alloy 29.46kg of aluminium molybdenum, 85 level-one alloy 26.82kg of aluminium vanadium.
Three, prepare before intermediate frequency vaccum sensitive stove power transmission
(1) water circulating pump is opened, checks that pipeline has No leakage, adjusts that each road water operation is appropriate, pressure is suitable.
(2) electric system is checked, if it is normal, if any exception, on-call maintenance.
(3) confirm peep hole glass transparent situation, it is such as bad, it to open lid and wipe or polished with sand paper, after reinstalling,
Twisting positioning hand button, positioning will flexibly, gland good seal.
Four, melting
(1) it vacuumizes, starts mechanical pump, lobe pump, kept for 15 minutes.When vacuum display device registration is less than 10Pa, stop
It only vacuumizes, starts power transmission and heat melting；
(2) power transmission, initial power 20kW；
(3) after twenty minutes, power is adjusted to 60kW；
(4) after seeing that alloy melts, power is adjusted to 90kW；
(5) after alloy is melting down, power is properly increased to 100kW, is refined 7 minutes at 1990 DEG C, again by smelting furnace
10 pas are evacuated to, gaseous impurity in melt, casting are removed.
Five, it comes out of the stove within cooling 150 minutes, obtains aluminium molybdenum vanadium intermediate alloy
It can be observed that the dimmed red slow fusing of waiting a moment of alloy, aluminium alloy is shinny in fusion process, become clear.
To position at the one of aluminium molybdenum vanadium intermediate alloy ingot (cylindrical body) manufactured in the present embodiment (with 1 sample position of embodiment
Locate identical) sampling carries out chemical composition analysis, obtain that the results are shown in Table 1.
Aluminium molybdenum vanadium intermediate alloy ingot (cylindrical body) different parts manufactured in the present embodiment are sampled using the method for embodiment 1
Chemical composition analysis is carried out, obtains result as indicated with 6.As can be seen from Table 6, aluminium molybdenum vanadium intermediate alloy manufactured in the present embodiment at
Divide uniform and stable, segregation-free.
The chemical component of 1 Examples 1 to 5 aluminium molybdenum vanadium intermediate alloy of table
The chemical component of 2 embodiment of table, 1 aluminium molybdenum vanadium intermediate alloy different location
The chemical component of 3 embodiment of table, 2 aluminium molybdenum vanadium intermediate alloy different location
The chemical component of 4 embodiment of table, 3 aluminium molybdenum vanadium intermediate alloy different location
The chemical component of 5 embodiment of table, 4 aluminium molybdenum vanadium intermediate alloy different location
The chemical component of 6 embodiment of table, 5 aluminium molybdenum vanadium intermediate alloy different location
As can be seen from the above embodiments, aluminium molybdenum vanadium intermediate alloy ingredient provided by the invention is uniform and stable, impurity content
It is lower, therefore when producing titanium alloy as raw material, facilitate titanium alloy component homogenization, prevent component segregation, optimizes titanium alloy
Burden process when melting can be realized the accurate dosing of production process.Also, preparation method provided by the invention is simple, easily
Operation, is not required to special installation, and using aluminium and various oxides as raw material, at low cost, smelting process is steady, the state that alloy is formed
It is good.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of aluminium molybdenum vanadium intermediate alloy, which is characterized in that based on mass content, including 17.0~22.0% Al, 40.0~
42.0% Mo, 38.0~41.0% V.
2. aluminium molybdenum vanadium intermediate alloy according to claim 1, which is characterized in that based on mass content, including 18.0~
21.0% Al, 41.0~42.0% Mo, 39.0~41.0% V.
3. aluminium molybdenum vanadium intermediate alloy according to claim 1, which is characterized in that based on mass content, including 19.0%
Al, 41.0% Mo, 40.0% V.
4. the preparation method of aluminium molybdenum vanadium intermediate alloy described in claims 1 to 3 any one, which is characterized in that including following step
It is rapid:
(1) aluminium and molybdenum trioxide are mixed and carries out thermit reaction, obtain aluminium molybdenum level-one alloy after cooling；
(2) aluminium and vanadic anhydride are mixed and carries out thermit reaction, obtain aluminium vanadium level-one alloy after cooling；
(3) the aluminium molybdenum level-one alloy, aluminium vanadium level-one alloy and aluminium are subjected to vacuum melting, are obtained in the aluminium molybdenum vanadium after cooling
Between alloy；
The limitation of the not no time sequencing of the step (1) and step (2).
5. the preparation method according to claim 4, which is characterized in that the quality of aluminium and molybdenum trioxide in the step (1)
Than for (0.0934~1.061): (1.815~2.012)；The aluminium and molybdenum trioxide are dried before mixing；It is described dry
Dry temperature is 100~120 DEG C, and the time is greater than 6h.
6. preparation method according to claim 4 or 5, which is characterized in that the temperature of thermit reaction is in the step (1)
1650~1750 DEG C, the time is 33~42s.
7. the preparation method according to claim 4, which is characterized in that the matter of aluminium and vanadic anhydride in the step (2)
Amount is than being (0.945~1.063): (1.586~1.755)；The aluminium and vanadic anhydride are dried before mixing；It is described dry
Dry temperature is 100~120 DEG C, and the time is greater than 6h.
8. the preparation method according to claim 4 or 7, which is characterized in that the temperature of thermit reaction is in the step (2)
1750~1850 DEG C, the time is 21~35s.
9. the preparation method according to claim 4, which is characterized in that the vacuum degree of vacuum melting is small in the step (3)
In 10 pas.
10. the preparation method according to claim 4 or 9, which is characterized in that the vacuum melting in the step (3) includes
The fusing and refining successively carried out；The temperature of the refining is 1950~2000 DEG C, and the time is 5~10min.
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