CN106987735A - A kind of preparation technology of aluminium intermediate alloy - Google Patents
A kind of preparation technology of aluminium intermediate alloy Download PDFInfo
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- CN106987735A CN106987735A CN201610862283.XA CN201610862283A CN106987735A CN 106987735 A CN106987735 A CN 106987735A CN 201610862283 A CN201610862283 A CN 201610862283A CN 106987735 A CN106987735 A CN 106987735A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- 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
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- 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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Abstract
Field, more particularly to a kind of preparation technology of aluminium intermediate alloy are synthesized the present invention relates to aluminium intermediate alloy.Aluminium ingot is added in electric induction furnace, melt and be warming up to 660~850 DEG C, then magnesium fluoride, cryolite, potassium fluoroaluminate and potassium chloride are mixed into after compound and added in electric induction furnace, heating is until 750~1000 DEG C, then one or both of scandium oxide and scandium chloride are added and reacted in electric induction furnace, the qualified rear slag former that adds clears up the remaining fused salt of alloy surface；Alloy temperature is maintained at 760~900 DEG C, leading to argon gas with rotary degassing machine carries out refining degasification, then adds slag former and carries out slag making processing again.The present invention utilizes electric induction furnace, in the high temperature aluminum water that covering fused salt in surface is added to after chloride and fluoride are mixed, aluminium-scandium alloy directly is produced, the problems such as aluminium-scandium alloy cost height, high energy consumption, time length, low efficiency and unstable quality are prepared using mix-melting method is solved.
Description
（One）Technical field
Field, more particularly to a kind of preparation technology of aluminium intermediate alloy are synthesized the present invention relates to aluminium intermediate alloy.
（Two）Background technology
The conventional preparation techniques of aluminium alloy be to the method for mixing, mainly using metallic aluminium and metal simple-substance or high content aluminium intermediate alloy as
Raw material carries out high temperature melting and matched somebody with somebody.But because some metals such as metal scandium and scandium-aluminum alloy price are higher, and the infusibility during molten match somebody with somebody
Solution, easy segregation；As energy prices rise steadily, mix-melting method cost height, high energy consumption, time length, efficiency are low and quality is unstable
The problems such as all the more protrude.
（Three）The content of the invention
There is provided a kind of cost is low, energy consumption is low, the aluminium of efficiency high, steady quality for the defect that makes up prior art by the present invention
The preparation technology of intermediate alloy.
The present invention is achieved through the following technical solutions：
A kind of preparation technology of aluminium intermediate alloy, it is characterized in that：Aluminium ingot is added in electric induction furnace, melts and is warming up to 660
~850 DEG C, then magnesium fluoride, cryolite, potassium fluoroaluminate and potassium chloride are mixed into after compound, automatic charging equipment is transferred to
In hopper, then by automatic charging equipment addition electric induction furnace, then heating up, make after the whole fusing of aluminium water surface salt-mixture, will
Aluminium water is continuously heating to 750~1000 DEG C, and one or both of scandium oxide and scandium chloride then are added into automatic charging equipment material
In case, then by the way that in automatic charging equipment hopper addition electric induction furnace, reaction turns into alloy after 15~120 minutes, and alloy is sampled
The fused salt on alloy surface is poured out after chemical examination, the mass content of the scandium required for reaching, addition slag former after finishing is toppled over clear
Manage the remaining fused salt of alloy surface；After cleaning out, alloy temperature is maintained at 760~900 DEG C, leading to argon gas with rotary degassing machine enters
Row refining degasification, the refining degasification time is 10~60 minutes, and refining degasification first clears up alloy surface scum silica frost after finishing, and then adds
Slag former carries out slag making processing again, by alloy casting into waffle ingot after being disposed.
The rotating speed of the rotary degassing machine is 100~600 rpm.
The slag former used for the first time is 4~the 6 ‰ of alloy mass, and the slag former used for the second time is the 2 of alloy mass
~4 ‰.
The beneficial effects of the invention are as follows：
The present invention utilizes electric induction furnace, and the high temperature aluminum water that surface covers fused salt is added to after the oxide of scandium and chloride are mixed
In, aluminium-scandium alloy is directly produced, solves using mix-melting method that to prepare aluminium-scandium alloy cost height, high energy consumption, time length, efficiency low
With quality it is unstable the problems such as.
（Four）Embodiment
It is below the specific embodiment of the present invention.Scandium content 0.1~2% can be prepared using the preparation technology of the present invention（Quality point
Number, similarly hereinafter）Aluminium-scandium alloy, the present embodiment is with scandium content（Mass fraction）Respectively 0.5%, 1.0%, 1.5% and 2.0% are illustrated：
Embodiment one（Prepare the aluminium-scandium alloy that scandium content is 0.5%）：
By double centner 99.7%（Mass fraction, similarly hereinafter）Aluminium ingot be added in electric induction furnace, melt and be warming up to 660 DEG C, will
5Kg magnesium fluorides, 15Kg cryolite, 15Kg potassium fluoroaluminates and 5Kg potassium chloride are mixed into after compound, add automatic charging equipment material
In case, then by automatic charging equipment addition electric induction furnace, then heating up, aluminium coolant-temperature gage being risen into 900 DEG C.By 1.2 Kg chlorinations
Add in automatic charging equipment, then added by automatic charging equipment hopper in electric induction furnace, reaction after scandium and the mixing of 0.6Kg scandium oxides
Turn into alloy after 15 minutes, by alloy sample examination, the fused salt on alloy surface is poured out after scandium content is qualified, is toppled over after finishing
Add 0.6 kilogram of remaining fused salt of slag former cleaning alloy surface；After cleaning out, by above-mentioned alloy temperature adjustment is to 760 DEG C and is incubated,
Lead to argon gas with rotary degassing machine and carry out refining degasification, the rotating speed of rotary degassing machine is 600 rpm, and the refining degasification time is 40 points
Clock, refining degasification first clears up alloy surface scum silica frost after finishing, and then adds 0.4 kilogram of slag former and carries out slag making processing again,
By alloy casting into waffle ingot after being disposed, aluminium-scandium alloy that about double centner scandium content is 0.5% can be obtained.
Embodiment two（Prepare the aluminium-scandium alloy that scandium content is 0.5%）：
The aluminium ingot of double centner 99.7% is added in electric induction furnace, melts and is warming up to 850 DEG C, by 5Kg magnesium fluorides, 10 Kg
Cryolite, 20 Kg potassium fluoroaluminates and 5Kg potassium chloride are mixed into after compound, are added in automatic charging equipment hopper, then by certainly
Dynamic charger is added in electric induction furnace, then heats up, aluminium coolant-temperature gage is risen into 750 DEG C.2.5 Kg scandium chlorides are added into automatic add
In material machine, then by the way that in automatic charging equipment hopper addition electric induction furnace, reaction turns into alloy after 120 minutes, by alloy samplingization
Test, the fused salt on alloy surface is poured out after scandium content is qualified, topple over and 0.4 kilogram of slag former cleaning alloy surface is added after finishing
Remaining fused salt；After cleaning out, by above-mentioned alloy temperature adjustment is to 900 DEG C and is incubated, leads to argon gas with rotary degassing machine and carry out refining and remove
Gas, the rotating speed of rotary degassing machine is 100 rpm, and the refining degasification time is 20 minutes, and refining degasification first clears up alloy table after finishing
Face scum silica frost, then adds 0.2 kilogram of slag former and carries out slag making processing again, by alloy casting into waffle ingot after being disposed,
Can must about double centner scandium content be 0.5% aluminium-scandium alloy.
Embodiment three（Prepare the aluminium-scandium alloy that scandium content is 0.5%）：
The aluminium ingot of double centner 99.7% is added in electric induction furnace, melts and is warming up to 750 DEG C, by 5 Kg magnesium fluorides, 20 Kg
Cryolite, 10Kg potassium fluoroaluminates and 5Kg potassium chloride are mixed into after compound, are added in automatic charging equipment hopper, then by certainly
Dynamic charger is added in electric induction furnace, then heats up, aluminium coolant-temperature gage is risen into 1000 DEG C.1.2Kg scandium oxides are added into automatic add
In material machine, then by the way that in automatic charging equipment hopper addition electric induction furnace, reaction turns into alloy after 120 minutes, by alloy samplingization
Test, the fused salt on alloy surface is poured out after scandium content is qualified, topple over and 0.5 kilogram of slag former cleaning alloy surface is added after finishing
Remaining fused salt；After cleaning out, by above-mentioned alloy temperature adjustment is to 800 DEG C and is incubated, leads to argon gas with rotary degassing machine and carry out refining and remove
Gas, the rotating speed of rotary degassing machine is 300 rpm, and the refining degasification time is 30 minutes, and refining degasification first clears up alloy table after finishing
Face scum silica frost, then adds 0.3 kilogram of slag former and carries out slag making processing again, by alloy casting into waffle ingot after being disposed,
Can must about double centner scandium content be 0.5% aluminium-scandium alloy.
Example IV（Prepare the aluminium-scandium alloy that scandium content is 1.0%）：
The aluminium ingot of double centner 99.7% is added in electric induction furnace, melts and is warming up to 660 DEG C, by 5 Kg magnesium fluorides, 15
Kg cryolite, 15 Kg potassium aluminates and 5Kg potassium chloride are mixed into after compound, are added in automatic charging equipment hopper, then by certainly
Dynamic charger is added in electric induction furnace, then heats up, aluminium coolant-temperature gage is risen into 1000 DEG C.2.5Kg scandium oxides are added into automatic add
In material machine, then by the way that in automatic charging equipment hopper addition electric induction furnace, reaction turns into alloy after 15 minutes, by alloy samplingization
Test, the fused salt on alloy surface is poured out after scandium content is qualified, topple over and 0.6 kilogram of slag former cleaning alloy surface is added after finishing
Remaining fused salt；After cleaning out, by above-mentioned alloy temperature adjustment is to 760 DEG C and is incubated, leads to argon gas with rotary degassing machine and carry out refining and remove
Gas, the rotating speed of rotary degassing machine is 600 rpm, and the refining degasification time is 10 minutes, and refining degasification first clears up alloy table after finishing
Face scum silica frost, then adds 0.4 kilogram of slag former and carries out slag making processing again, by alloy casting into waffle ingot after being disposed,
Can must about double centner scandium content be 1.0% aluminium-scandium alloy.
Embodiment five（Prepare the aluminium-scandium alloy that scandium content is 1.0%）：
The aluminium ingot of double centner 99.7% is added in electric induction furnace, melts and is warming up to 850 DEG C, by 5Kg magnesium fluorides, 10 Kg
Cryolite, 20Kg potassium fluoroaluminates and 5Kg potassium chloride are mixed into after compound, are added in automatic charging equipment hopper, then by certainly
Dynamic charger is added in electric induction furnace, then heats up, aluminium coolant-temperature gage is risen into 750 DEG C.5.5Kg scandium chlorides are added into auto feed
In machine, then by the way that in automatic charging equipment hopper addition electric induction furnace, reaction turns into alloy after 120 minutes, by alloy sample examination,
The fused salt on alloy surface is poured out after scandium content is qualified, 0.4 kilogram of slag former cleaning alloy surface of addition after finishing is toppled over and remains
Remaining fused salt；After cleaning out, by above-mentioned alloy temperature adjustment is to 800 DEG C and is incubated, leads to argon gas with rotary degassing machine and carry out refining degasification,
The rotating speed of rotary degassing machine is 100 rpm, and the refining degasification time is 60 minutes, and refining degasification is first cleared up alloy surface after finishing and floated
Slag, then adds 0.2 kilogram of slag former and carries out slag making processing again, by alloy casting into waffle ingot after being disposed, can obtain
About double centner scandium content is 1.0% aluminium-scandium alloy.
Embodiment six（Prepare the aluminium-scandium alloy that scandium content is 1.0%）：
The aluminium ingot of double centner 99.7% is added in electric induction furnace, melts and is warming up to 800 DEG C, by 5Kg prodans, 20
Kg cryolite, 10Kg potassium fluoroaluminates and 5Kg potassium chloride are mixed into after compound, are added in automatic charging equipment hopper, then pass through
Automatic charging equipment is added in electric induction furnace, then heats up, aluminium coolant-temperature gage is risen into 900 DEG C.By 2.5Kg scandium chlorides and 1.2Kg oxygen
Change scandium mixing after add automatic charging equipment in, then by automatic charging equipment hopper add electric induction furnace in, reaction 60 minutes after into
For alloy, by alloy sample examination, the fused salt on alloy surface is poured out after scandium content is qualified, topples over and 0.5 thousand is added after finishing
The remaining fused salt of gram slag former cleaning alloy surface；After cleaning out, by above-mentioned alloy temperature adjustment is to 900 DEG C and is incubated, removed with rotation
Mechanism of qi leads to argon gas and carries out refining degasification, and the rotating speed of rotary degassing machine is 500 rpm, and the refining degasification time is 10 minutes, and refining is removed
Gas first clears up alloy surface scum silica frost after finishing, and then adds 0.3 kilogram of slag former and carries out slag making processing again, after being disposed
By alloy casting into waffle ingot, aluminium-scandium alloy that about double centner scandium content is 1.0% can be obtained.
Embodiment seven（Prepare the aluminium-scandium alloy that scandium content is 1.5%）：
The aluminium ingot of double centner 99.7% is added in electric induction furnace, melts and is warming up to 700 DEG C, by 10Kg magnesium fluorides, 15 Kg
Cryolite, 15Kg potassium fluoroaluminates and 5Kg potassium chloride are mixed into after compound, are added in automatic charging equipment hopper, then by certainly
Dynamic charger is added in electric induction furnace, then heats up, aluminium coolant-temperature gage is risen into 1000 DEG C.3.5Kg scandium oxides are added into automatic add
In material machine, then by the way that in automatic charging equipment hopper addition electric induction furnace, reaction turns into alloy after 30 minutes, by alloy samplingization
Test, the fused salt on alloy surface is poured out after scandium content is qualified, topple over and 0.5 kilogram of slag former cleaning alloy surface is added after finishing
Remaining fused salt；After cleaning out, by above-mentioned alloy temperature adjustment is to 760 DEG C and is incubated, leads to argon gas with rotary degassing machine and carry out refining and remove
Gas, the rotating speed of rotary degassing machine is 200 rpm, and the refining degasification time is 60 minutes, and refining degasification first clears up alloy table after finishing
Face scum silica frost, then adds 0.4 kilogram of slag former and carries out slag making processing again, by alloy casting into waffle ingot after being disposed,
Can must about double centner scandium content be 1.5% aluminium-scandium alloy.
Embodiment eight（Prepare the aluminium-scandium alloy that scandium content is 1.5%）：
The aluminium ingot of double centner 99.7% is added in electric induction furnace, melts and is warming up to 850 DEG C, by 10Kg magnesium fluorides, 20 Kg
Cryolite, 10Kg potassium fluoroaluminates and 5Kg potassium chloride are mixed into after compound, are added in automatic charging equipment hopper, then by certainly
Dynamic charger is added in electric induction furnace, then heats up, aluminium coolant-temperature gage is risen into 850 DEG C.By 1.0Kg scandium oxides and 5.5Kg chlorinations
Add in automatic charging equipment, then added by automatic charging equipment hopper in electric induction furnace after scandium mixing, reaction turns into after 90 minutes
Alloy, by alloy sample examination, pours out the fused salt on alloy surface after scandium content is qualified, topple over and 0.4 kilogram is added after finishing
The remaining fused salt of slag former cleaning alloy surface；After cleaning out, by above-mentioned alloy temperature adjustment is to 800 DEG C and is incubated, with rotation degasification
Machine leads to argon gas and carries out refining degasification, and the rotating speed of rotary degassing machine is 100 rpm, and the refining degasification time is 40 minutes, refines degasification
Alloy surface scum silica frost is first cleared up after finishing, 0.2 kilogram of slag former is then added and carries out slag making processing again, will after being disposed
Alloy casting can obtain aluminium-scandium alloy that about double centner scandium content is 1.5% into waffle ingot.
Embodiment nine（Prepare the aluminium-scandium alloy that scandium content is 1.5%）：
The aluminium ingot of double centner 99.7% is added in electric induction furnace, melts and is warming up to 750 DEG C, by 10Kg magnesium fluorides, 10Kg
Cryolite, 20Kg potassium fluoroaluminates and 5Kg potassium chloride are mixed into after compound, are added in automatic charging equipment hopper, then by certainly
Dynamic charger is added in electric induction furnace, then heats up, aluminium coolant-temperature gage is risen into 800 DEG C.8.0 Kg scandium chlorides are added into automatic add
In material machine, then by the way that in automatic charging equipment hopper addition electric induction furnace, reaction turns into alloy after 100 minutes, by alloy samplingization
Test, the fused salt on alloy surface is poured out after scandium content is qualified, topple over and 0.5 kilogram of slag former cleaning alloy surface is added after finishing
Remaining fused salt；After cleaning out, by above-mentioned alloy temperature adjustment is to 900 DEG C and is incubated, leads to argon gas with rotary degassing machine and carry out refining and remove
Gas, the rotating speed of rotary degassing machine is 250 rpm, and the refining degasification time is 25 minutes, and refining degasification first clears up alloy table after finishing
Face scum silica frost, then adds 0.3 kilogram of slag former and carries out slag making processing again, by alloy casting into waffle ingot after being disposed,
Can must about double centner scandium content be 1.5% aluminium-scandium alloy.
Embodiment ten（Prepare the aluminium-scandium alloy that scandium content is 2.0%）：
The aluminium ingot of double centner 99.7% is added in electric induction furnace, melts and is warming up to 850 DEG C, by 10 Kg magnesium fluorides, 15
Kg cryolite, 15Kg potassium fluoroaluminates and 10Kg potassium chloride are mixed into after compound, are added in automatic charging equipment hopper, then pass through
Automatic charging equipment is added in electric induction furnace, then heats up, aluminium coolant-temperature gage is risen into 1000 DEG C.5.0Kg scandium oxides are added automatic
In charger, then by the way that in automatic charging equipment hopper addition electric induction furnace, reaction turns into alloy after 50 minutes, by alloy samplingization
Test, the fused salt on alloy surface is poured out after scandium content is qualified, topple over and 0.5 kilogram of slag former cleaning alloy surface is added after finishing
Remaining fused salt；After cleaning out, by above-mentioned alloy temperature adjustment is to 760 DEG C and is incubated, leads to argon gas with rotary degassing machine and carry out refining and remove
Gas, the rotating speed of rotary degassing machine is 350rpm, and the refining degasification time is 50 minutes, and refining degasification first clears up alloy surface after finishing
Scum silica frost, then adds 0.4 kilogram of slag former and carries out slag making processing again, can by alloy casting into waffle ingot after being disposed
Must about double centner scandium content be 2.0% aluminium-scandium alloy.
Embodiment 11（Prepare the aluminium-scandium alloy that scandium content is 2.0%）：
The aluminium ingot of double centner 99.7% is added in electric induction furnace, melts and is warming up to 660 DEG C, by 10Kg magnesium fluorides, 20 Kg
Cryolite, 15Kg potassium fluoroaluminates and 5Kg potassium chloride are mixed into after compound, are added in automatic charging equipment hopper, then by certainly
Dynamic charger is added in electric induction furnace, then heats up, aluminium coolant-temperature gage is risen into 900 DEG C.By 2.5 Kg scandium oxides and 5.5Kg chlorine
Change scandium mixing after add automatic charging equipment in, then by automatic charging equipment hopper add electric induction furnace in, reaction 120 minutes after into
For alloy, by alloy sample examination, the fused salt on alloy surface is poured out after scandium content is qualified, topples over and 0.4 thousand is added after finishing
The remaining fused salt of gram slag former cleaning alloy surface；After cleaning out, by above-mentioned alloy temperature adjustment is to 800 DEG C and is incubated, removed with rotation
Mechanism of qi leads to argon gas and carries out refining degasification, and the rotating speed of rotary degassing machine is 150 rpm, and the refining degasification time is 45 minutes, and refining is removed
Gas first clears up alloy surface scum silica frost after finishing, and then adds 0.2 kilogram of slag former and carries out slag making processing again, after being disposed
By alloy casting into waffle ingot, aluminium-scandium alloy that about double centner scandium content is 2.0% can be obtained.
Embodiment 12（Prepare the aluminium-scandium alloy that scandium content is 2.0%）：
The aluminium ingot of double centner 99.7% is added in electric induction furnace, melts and is warming up to 660 DEG C, by 10 Kg magnesium fluorides, 15
Kg cryolite, 20Kg potassium fluoroaluminates and 10Kg potassium chloride are mixed into after compound, are added in automatic charging equipment hopper, then pass through
Automatic charging equipment is added in electric induction furnace, then heats up, aluminium coolant-temperature gage is risen into 750 DEG C.10.5Kg scandium chlorides are added automatic
In charger, then by the way that in automatic charging equipment hopper addition electric induction furnace, reaction turns into alloy after 60 minutes, by alloy samplingization
Test, the fused salt on alloy surface is poured out after scandium content is qualified, topple over and 0.6 kilogram of slag former cleaning alloy surface is added after finishing
Remaining fused salt；After cleaning out, by above-mentioned alloy temperature adjustment is to 900 DEG C and is incubated, leads to argon gas with rotary degassing machine and carry out refining and remove
Gas, the rotating speed of rotary degassing machine is 450 rpm, and the refining degasification time is 20 minutes, and refining degasification first clears up alloy table after finishing
Face scum silica frost, then adds 0.3 kilogram of slag former and carries out slag making processing again, by alloy casting into waffle ingot after being disposed,
Can must about double centner scandium content be 2.0% aluminium-scandium alloy.
In addition to technical characteristic described in specification, remaining technical characteristic is technology known to those skilled in the art.
Claims (3)
1. a kind of preparation technology of aluminium intermediate alloy, it is characterized in that：Aluminium ingot is added in electric induction furnace, melts and is warming up to
660~850 DEG C, then magnesium fluoride, cryolite, potassium fluoroaluminate and potassium chloride are mixed into after compound, are transferred to automatic add
In material machine hopper, then by automatic charging equipment addition electric induction furnace, then heating up, make all fusings of aluminium water surface salt-mixture
Afterwards, aluminium water is continuously heating to 750~1000 DEG C, one or both of scandium oxide and scandium chloride is then added into auto feed
In machine hopper, then by the way that in automatic charging equipment hopper addition electric induction furnace, reaction turns into alloy after 15~120 minutes, by alloy
The fused salt on alloy surface is poured out after sample examination, the mass content of the scandium required for reaching, topples over and slag making is added after finishing
The remaining fused salt of agent cleaning alloy surface；After cleaning out, alloy temperature is maintained at 760~900 DEG C, leads to argon with rotary degassing machine
Gas carries out refining degasification, and the refining degasification time is 10~60 minutes, and refining degasification first clears up alloy surface scum silica frost after finishing, then
Add slag former and carry out slag making processing again, by alloy casting into waffle ingot after being disposed.
2. the preparation technology of aluminium intermediate alloy according to claim 1, it is characterized in that, the rotating speed of the rotary degassing machine is
100~600 rpm.
3. the preparation technology of aluminium intermediate alloy according to claim 1, it is characterized in that, the slag former used for the first time is conjunction
The 4 of golden amount~6 ‰, the slag former used for the second time is 2~the 4 ‰ of alloy mass.
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| CN111663058A (en) * | 2020-06-28 | 2020-09-15 | 沈阳航空航天大学 | Fe-Al alloy used as aluminum alloy additive and preparation method and application thereof |
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| CN113106301A (en) * | 2021-03-15 | 2021-07-13 | 山东滨州华创金属有限公司 | Preparation process of aluminum-titanium-boron-carbon grain refiner and refiner prepared by same |
| US11384412B2 (en) | 2018-01-16 | 2022-07-12 | Scandium International Mining Corporation | Direct scandium alloying |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108103328A (en) * | 2017-12-15 | 2018-06-01 | 南通昂申金属材料有限公司 | A kind of preparation process of aluminium bismuth intermediate alloy |
| US10988830B2 (en) | 2018-01-16 | 2021-04-27 | Scandium International Mining Corporation | Scandium master alloy production |
| US11384412B2 (en) | 2018-01-16 | 2022-07-12 | Scandium International Mining Corporation | Direct scandium alloying |
| CN109881033A (en) * | 2019-03-15 | 2019-06-14 | 山东滨州华创金属有限公司 | The preparation method of the aluminium beryllium intermediate alloy line bar of beryllium content 0.1~5% |
| CN111663058A (en) * | 2020-06-28 | 2020-09-15 | 沈阳航空航天大学 | Fe-Al alloy used as aluminum alloy additive and preparation method and application thereof |
| CN113106301A (en) * | 2021-03-15 | 2021-07-13 | 山东滨州华创金属有限公司 | Preparation process of aluminum-titanium-boron-carbon grain refiner and refiner prepared by same |
| CN113106301B (en) * | 2021-03-15 | 2022-03-22 | 山东滨州华创金属有限公司 | Preparation process of aluminum-titanium-boron-carbon grain refiner and refiner prepared by same |
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Application publication date: 20170728 |