CN107675039A - A kind of current conversion station galvanization gold utensil anti-oxidant composite modified hydronalium of zirconium cerium and preparation method thereof - Google Patents
A kind of current conversion station galvanization gold utensil anti-oxidant composite modified hydronalium of zirconium cerium and preparation method thereof Download PDFInfo
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- CN107675039A CN107675039A CN201710668024.8A CN201710668024A CN107675039A CN 107675039 A CN107675039 A CN 107675039A CN 201710668024 A CN201710668024 A CN 201710668024A CN 107675039 A CN107675039 A CN 107675039A
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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
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
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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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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
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Abstract
The invention discloses a kind of current conversion station galvanization gold utensil anti-oxidant composite modified hydronalium of zirconium cerium and preparation method thereof, the alloy material composition includes：Mass percent is 4.30%~5.20% magnesium elements, 0.40%~1.00% manganese element, 0.05%~0.25% chromium, 0.05%~0.30% zr element, 0.2%~0.6% Ce elements and aluminium element.The beneficial effects of the present invention are：On the basis of original Al-Mg-Mn chromium, add zirconium and Ce elements, so that the alloy material has good antioxygenic property, design and manufacture especially suitable for current conversion station galvanization gold utensil, the high temperature Quick Oxidation phenomenon that former gold utensil material can effectively be mitigated endangers to caused by the operational reliability of current conversion station, ensure the safe and stable operation of current conversion station, reduce operation and the maintenance cost of current conversion station.In addition, the raw material for molten alloy in the preparation method of the material is reguline metal simple substance, and uses two step smelting technologies, without the addition of intermediate alloy, save raw material and preparation technology is simple to operation.
Description
Technical field
The present invention relates to the design of power transmission engineering gold utensil and operation maintenance technical field, and more particularly, to current conversion station
Galvanization gold utensil anti-oxidant composite modified hydronalium of zirconium cerium and preparation method thereof.
Background technology
Current conversion station is the core component of DC transmission engineering, bears the mission critical of AC DC electric conversion.Electric power gold
Tool is all kinds of devices in connection and combinational electric system, to transmit machinery, electrical load and the metal for playing certain protective action
Annex.Galvanization gold utensil is wide variety of gold utensil species in current conversion station, and its effect is to be interconnected to form converter to lead
Electric pathway.Fuel factor based on electric current, galvanization gold utensil can produce fever phenomenon in the process of running.In peak times of power consumption, lead to
The heating temp of electric current gold utensil can be raised further.
At present, current conversion station galvanization gold utensil part is manufactured using Al-Mg-Mn evanohm.In hot environment, alloy can occur
Quick Oxidation, one layer of Surface Creation is with Al2O3For the oxide-film of main component.Due to solid-state Al2O3It is the non-conductor of electricity, it is golden
Resistance increase after tool aoxidizes.Caloric value increase when resistance increase makes the gold utensil pass through same current, temperature rise.Temperature raises
Gold utensil resistance is further increased, such vicious circle, ultimately result in gold utensil overheat fusing, cause power grid accident.
The content of the invention
The invention provides a kind of current conversion station galvanization gold utensil with the composite modified hydronalium of anti-oxidant zirconium cerium and its
Preparation method, poor to solve the high temperature oxidation resistance of former Al-Mg-Mn chromium, the easily operation to current conversion station damages
Problem.
In order to solve the above problems, resist according to an aspect of the invention, there is provided a kind of current conversion station galvanization gold utensil is used
The composite modified hydronalium of zirconium oxide cerium, the material composition include：Mass percent is 4.30%~5.20% magnesium
Element, 0.40%~1.00% manganese element, 0.05%~0.25% chromium, 0.05%~0.30% zr element,
0.2%~0.6% Ce elements and aluminium element.
Preferably, wherein the mass percent of the magnesium elements is 4.40%~4.8%, the quality percentage of the manganese element
Than being 0.1%~0.2% for the mass percent of 0.50%~0.9%, the chromium, the mass percent of the zr element
For 0.07%~0.22%, the mass percent of the Ce elements is 0.3%~0.5% and aluminium element.
According to a further aspect of the invention, the alloy material is used to make the through-flow gold utensil of current conversion station.
Alloy material provided by the invention has lower oxide growth speed and more preferable anti-height compared with former alloy
Warm oxidisability, it can effectively reduce due to power grid accident incidence caused by the high temperature Quick Oxidation phenomenon of former gold utensil material, protect
The safe and stable operation of current conversion station has been demonstrate,proved, has reduced operation and the maintenance cost of current conversion station, for current conversion station galvanization gold utensil
Operating condition has more preferable adaptability.
According to a further aspect of the invention, there is provided a kind of current conversion station galvanization gold utensil is composite modified with anti-oxidant zirconium cerium
The preparation method of hydronalium, methods described include：
Step 1, the pure aluminum in raw material, manganese, chromium, zirconium and cerium weigh taking according to default mass percent respectively
Sample；
Step 2, the raw material is placed in smelting equipment by crucible, and the smelting equipment is evacuated to
0.08Pa-0.1Pa；
Step 3, inert gas is passed through into the smelting equipment, the pressure in the smelting equipment is reached 0.05MPa,
And the power supply for connecting the smelting equipment carries out melting, reaches melting down state to raw material；
Step 4, after raw material is melting down, according to default essence in the state of to control temperature in the smelting equipment be 800 DEG C
Refining time threshold is refined, and obtains the first alloy molten solution；
Step 5, the power supply of the smelting equipment is cut off, first alloy molten solution is injected into ingot mould and poured into a mould,
Obtain alloy cast ingot and cooled down；
Step 6, by the elemental magnesium in the alloy cast ingot and raw material after the cooling according to default mass percent again
Dispensing is carried out, repeat step 2-3, after raw material reaches melting down state, it is 650 DEG C -700 to control the temperature in the smelting equipment
Refined in the state of DEG C according to default refining time threshold value, obtain the second alloy molten solution, second alloy molten solution is noted
Enter and poured into a mould into ingot mould, obtain Al-Mg-Mn chromium zirconium cerium alloy material.
Preferably, wherein the smelting equipment is vacuum melting furnace.
Preferably, wherein the monitor system of the vacuum melting furnace is 20kW.
Preferably, wherein characterized in that, the crucible is：High purity aluminium oxide crucible.
Preferably, wherein the inert gas is：Argon gas.
Preferably, wherein the default refining time threshold value is：3min-5min.
Preferably, wherein the ingot mould is：High purity graphite crucible.
The beneficial effects of the present invention are：
The invention provides a kind of current conversion station galvanization gold utensil with the anti-oxidant composite modified hydronalium of zirconium cerium, in original
On the basis of having Al-Mg-Mn chromium, zirconium and Ce elements are added so that the alloy material has good antioxygenic property, especially suitable
For the design and manufacture of current conversion station galvanization gold utensil, the high temperature Quick Oxidation phenomenon that can effectively mitigate former gold utensil material is exchanged
Harm caused by flowing the operational reliability at station, ensures the safe and stable operation of current conversion station, reduce the operation of current conversion station and safeguard into
This.In addition, the raw material for molten alloy in the preparation method of the material is reguline metal simple substance, and use two step meltings
Technique, without the addition of intermediate alloy, raw material are both saved, remove the tedious steps of multiple melting intermediate alloy from again, prepare work
Skill is simple to operation.
Brief description of the drawings
By reference to the following drawings, the illustrative embodiments of the present invention can be more fully understood by：
Fig. 1 is the high-temperature oxydation weightening curve map according to the alloy material of embodiment of the present invention.
Embodiment
The illustrative embodiments of the present invention are introduced with reference now to accompanying drawing, however, the present invention can use many different shapes
Formula is implemented, and is not limited to embodiment described herein, there is provided these embodiments are to disclose at large and fully
The present invention, and fully pass on the scope of the present invention to person of ordinary skill in the field.Show for what is be illustrated in the accompanying drawings
Term in example property embodiment is not limitation of the invention.In the accompanying drawings, identical cells/elements are attached using identical
Icon is remembered.
Unless otherwise indicated, term (including scientific and technical terminology) used herein has to person of ordinary skill in the field
It is common to understand implication.Further it will be understood that the term limited with usually used dictionary, be appreciated that and its
The linguistic context of association area has consistent implication, and is not construed as Utopian or overly formal meaning.
The invention provides a kind of current conversion station galvanization gold utensil with the anti-oxidant composite modified hydronalium of zirconium cerium, passes through
Influence of the various active elements to the high temperature oxidation resistance of Al-Mg-Mn chromium alloy material is taken into full account, in former Al-Mg-Mn evanohm
On the basis of composition, add zr element and Ce elements are modified processing, obtained a kind of novel aluminum-magnesium manganese chromium zirconium cerium alloy material
Material.Appropriate zr element is added in aluminium alloy, it forms KESHI gas mass anchoring dislocation when being dissolved state with dislocation reaction, hinders
Sub boundary migrates；In Al3When Zr is separated out, the tiny Al of disperse3Zr can have as the heterogeneous forming core core of matrix to crystal grain
Certain refining effect；Sliding to dislocation simultaneously and climb and the movement of crystal boundary has strong pinning effect, can stablize
The substructure of Deformation structure, dislocation rearranges when hindering to heat and sub boundary develops into the process of high-angle boundary, improves
Recrystallization temperature, so as to refining aluminum alloy recrystal grain.The addition of Ce elements adds the uniformity of alloy structure simultaneously, carries
The heat resistance of high alumina.The novel oxidation-resistant Al-Mg-Mn chromium zirconium cerium alloy material of the present invention has lower oxidation compared with former alloy
Layer-growth rate and more preferable high temperature oxidation resistance, there is preferably adaptation for the operating condition of current conversion station galvanization gold utensil
Property.
The anti-oxidant composite modified hydronalium of zirconium cerium of current conversion station galvanization gold utensil disclosed by the invention, including：Matter
Measure the magnesium elements, 0.40%~1.00% manganese element, 0.05%~0.25% chromium member that percentage is 4.30%~5.20%
Element, 0.05%~0.30% zr element, 0.2%~0.6% Ce elements, surplus is aluminium element.Preferably, wherein the magnesium
The mass percent of element is 4.40%~4.8%, and the mass percent of the manganese element is 0.50%~0.9%, the chromium
The mass percent of element is 0.1%~0.2%, and the mass percent of the zr element is 0.07%~0.22%, the cerium
The mass percent of element is 0.3%~0.5% and aluminium element.
Specifically, aluminium element, magnesium elements, manganese element, chromium, zr element and Ce elements be derived from aluminium, magnesium, manganese, chromium, zirconium and
The block simple substance of cerium.The source of magnesium, manganese, chromium, aluminium, zirconium, cerium simple substance is not particularly limited the present embodiment, with people in the art
Method preparation or commercially available known to member.The present embodiment does not do any restriction to the purity of magnesium, manganese, chromium, aluminium, zirconium, cerium,
With the elemental purity well known to those skilled in the art for being used to prepare Al-Mg-Mn evanohm.In the present embodiment, Al-Mg-Mn chromium
Inevitably also include impurity element in zirconium cerium alloy.The present embodiment does not do any limit to the species and content of impurity element
It is fixed, with the content of the impurity element in Al-Mg-Mn chromium zirconium cerium alloy well known to those skilled in the art.
Present invention also offers the current conversion station galvanization gold utensil according to made of above-mentioned alloy material.
The alloy material that the present embodiment is provided is used in the making of current conversion station galvanization gold utensil, can effectively improve primary aluminum
The high temperature oxidation resistance of magnesium manganese evanohm, reduce due to power grid accident caused by the high temperature Quick Oxidation phenomenon of former gold utensil material
Incidence, the safe and stable operation of current conversion station is ensure that, reduce operation and the maintenance cost of current conversion station, be powered for current conversion station
The operating condition of stream gold utensil has more preferable adaptability.
Present invention also offers a kind of current conversion station galvanization gold utensil with the anti-oxidant composite modified hydronalium of zirconium cerium
Preparation method, methods described include：
Step 1, the pure aluminum in raw material, manganese, chromium, zirconium and cerium weigh taking according to default mass percent respectively
Sample；
Step 2, the raw material is placed in smelting equipment by crucible, and the smelting equipment is evacuated to
0.08Pa-0.1Pa；
Step 3, inert gas is passed through into the smelting equipment, the pressure in the smelting equipment is reached 0.05MPa,
And the power supply for connecting the smelting equipment carries out melting, reaches melting down state to raw material；
Step 4, after raw material is melting down, according to default essence in the state of to control temperature in the smelting equipment be 800 DEG C
Refining time threshold is refined, and obtains the first alloy molten solution；
Step 5, the power supply of the smelting equipment is cut off, first alloy molten solution is injected into ingot mould and poured into a mould,
Obtain alloy cast ingot and cooled down；
Step 6, by the elemental magnesium in the alloy cast ingot and raw material after the cooling according to default mass percent again
Dispensing is carried out, and is placed in by crucible in smelting equipment, the smelting equipment is evacuated to 0.08Pa-0.1Pa, is melted to described
Inert gas is passed through in refining equipment, the pressure in the smelting equipment is reached 0.05MPa, connects the power supply of the smelting equipment
Melting is carried out, after raw material reaches melting down state, is pressed in the state of to control the temperature in the smelting equipment be 650 DEG C -700 DEG C
Refined according to default refining time threshold value, obtain the second alloy molten solution, second alloy molten solution is injected into ingot mould
Row cast, obtains Al-Mg-Mn chromium zirconium cerium alloy material.
Preferably, wherein the smelting equipment is vacuum melting furnace.Preferably, wherein the melting work(of the vacuum melting furnace
Rate is 20kW.Preferably, wherein the crucible is：High purity aluminium oxide crucible.Preferably, wherein the inert gas is：Argon gas.
Preferably, wherein the default refining time threshold value is：3min-5min.Preferably, wherein the ingot mould is：High purity graphite
Crucible.
Specifically, the mixture that raw material can be made up of block pure aluminum, manganese, chromium, zirconium and cerium.It can be adopted in charging process
With high temperature resistant, crucible resistant to chemical etching, for example, alumina crucible.Preferably, luggage can be entered using high purity aluminium oxide crucible
Material, i.e. alumina content are more than 99% crucible.The specification of crucible can be determined as the case may be, and the present embodiment is to it
Any restriction is not done.Smelting equipment can be vaccum sensitive stove, and the model of vaccum sensitive stove can be carried out really according to actual conditions
Fixed, the present embodiment does not do any restriction to it.Inert gas can be the one or more in argon gas, helium or neon, to prevent
The only oxidation of alloy at high operating temperatures.When it is implemented, during melting, the monitor system of vacuum melting furnace can be 20kW.
Preparation method provided in an embodiment of the present invention, aluminium, manganese, chromium, zirconium and cerium simple substance are subjected to melting acquisition simultaneously first
Ingot casting, obtained ingot casting and magnesium simple substance are then subjected to secondary smelting, refining temperature control is at 650 DEG C -700 during secondary smelting
DEG C, refining temperature is reduced, can effectively prevent the scaling loss of magnesium simple substance.Compared with prior art, using two step smelting technologies, without
The addition of intermediate alloy, both saves raw material, removes the tedious steps of multiple melting intermediate alloy from again, and preparation technology is simple and easy
Operation.
In order to further illustrate current conversion station galvanization gold utensil alloy material provided in an embodiment of the present invention and its preparation side
Method, the present invention is described in more detail below in conjunction with specific embodiment：
Embodiment 1
Prepare a kind of Al-Mg-Mn chromium alloy material, including following weight/mass percentage compositions：Magnesium elements 4.4%, manganese element
0.7%, chromium 0.15%, aluminium element 94.35%.Preparation process is：Weigh respectively 44g, 7g, 1.5g, 943.5g magnesium,
Manganese, chromium, the block simple substance of aluminium carry out dispensing；Using high purity aluminium oxide crucible charge, smelting equipment inner chamber is evacuated to
0.09Pa；Argon gas is filled with to smelting equipment inner chamber to be protected, and inner chamber pressure is reached 0.05MPa；Make to smelting equipment power transmission
Melting sources, monitor system 20kW；After raw material is melting down, 3min~5min is refined；Smelting equipment is powered off, using high-purity stone
China ink stick mould cast alloys ingot；Air vacuum breaker is filled with to smelting equipment inner chamber, is taken out after ingot casting cooling；By melted ingot casting
With block elemental magnesium according to component requirements dispensing and charging, above melting step is repeated, secondary smelting is carried out, obtains final mark
It is designated as the Al-Mg-Mn chromium alloy material of No. 0.
Embodiment 2
Prepare a kind of anti-oxidant Al-Mg-Mn chromium zirconium cerium alloy material, including following weight/mass percentage compositions：Magnesium elements
4.5%, manganese element 0.8%, chromium 0.17%, zr element 0.07%, Ce elements 0.3%, aluminium element 94.16%.Prepare step
Suddenly it is：941.6g, 80g, 1.7g, 0.7g, 3g bulk pure aluminum, manganese, chromium, zirconium, cerium are weighed respectively carries out dispensing；Using high pure oxygen
Change aluminium crucible charge, smelting equipment inner chamber is evacuated to 0.1Pa；Argon gas is filled with to smelting equipment inner chamber to be protected, and is made interior
Chamber pressure reaches 0.05MPa；Make melting sources, monitor system 20kW to smelting equipment power transmission；After raw material is melting down, refining
3min~5min；Smelting equipment is powered off, using high purity graphite direct casting alloy pig；Air is filled with to smelting equipment inner chamber to break
Vacuum, taken out after ingot casting cooling；The block elemental magnesium of melted ingot casting and 45g is subjected to dispensing and charging, repeat more than
Melting step, carry out secondary smelting, obtain final mark for number Al-Mg-Mn chromium zirconium cerium alloy material.
Embodiment 3
Prepare a kind of anti-oxidant Al-Mg-Mn chromium zirconium cerium alloy material, including following weight/mass percentage compositions：Magnesium elements
4.5%, manganese element 0.8%, chromium 0.17%, zr element 0.14%, Ce elements 0.4%, aluminium element 93.99%.Prepare step
Suddenly it is：939.9g, 80g, 1.7g, 1.4g, 4g bulk pure aluminum, manganese, chromium, zirconium, cerium are weighed respectively carries out dispensing；Using high pure oxygen
Change aluminium crucible charge, smelting equipment inner chamber is evacuated to 0.1Pa；Argon gas is filled with to smelting equipment inner chamber to be protected, and is made interior
Chamber pressure reaches 0.05MPa；Make melting sources, monitor system 20kW to smelting equipment power transmission；After raw material is melting down, refining
3min~5min；Smelting equipment is powered off, using high purity graphite direct casting alloy pig；Air is filled with to smelting equipment inner chamber to break
Vacuum, taken out after ingot casting cooling；Melted ingot casting and 45g bulks elemental magnesium are subjected to dispensing and charging, repeated molten above
Refine step, carry out secondary smelting, obtain final mark for number Al-Mg-Mn chromium zirconium cerium alloy material.
Embodiment 4
Prepare a kind of anti-oxidant Al-Mg-Mn chromium zirconium cerium alloy material, including following weight/mass percentage compositions：Magnesium elements 4.5%,
Manganese element 0.8%, chromium 0.17%, zr element 0.22%, Ce elements 0.5%, aluminium element 93.81%.Preparation process is：Point
931.8g, 80g, 1.7g, 2.2g, 5g bulk pure aluminum, manganese, chromium, zirconium, cerium is also known as taken to carry out dispensing；Using high purity aluminium oxide earthenware
Crucible is fed, and smelting equipment inner chamber is evacuated into 0.1Pa；Argon gas is filled with to smelting equipment inner chamber to be protected, and makes inner chamber pressure
Reach 0.05MPa；Make melting sources, monitor system 20kW to smelting equipment power transmission；After raw material is melting down, refining 3min~
5min；Smelting equipment is powered off, using high purity graphite direct casting alloy pig；Air vacuum breaker is filled with to smelting equipment inner chamber,
Taken out after ingot casting cooling；By melted ingot casting and 45g bulks elemental magnesium by dispensing and charging is carried out, above melting step is repeated
Suddenly, carry out secondary smelting, obtain final mark for number Al-Mg-Mn chromium zirconium cerium alloy material.
Fig. 1 is the high-temperature oxydation weightening curve map according to the alloy material of embodiment of the present invention.As shown in figure 1, respectively
Prepared according to embodiment 2-4 1,2, No. 3 Al-Mg-Mn chromium zirconium cerium alloy sample 1 prepared with of the prior art according to embodiment 1
No. 0 Al-Mg-Mn chromium sample, high-temperature oxidation test is carried out under same test conditions, it can be seen that according to embodiment 2-4 prepare
The oxide growth speed of Al-Mg-Mn chromium zirconium cerium alloy sample be significantly lower than Al-Mg-Mn chromium sample of the prior art, i.e. this hair
The high temperature oxidation resistance of bright Al-Mg-Mn chromium zirconium cerium alloy material is better than Al-Mg-Mn chromium sample of the prior art, ensure that and changes
The safe and stable operation at station is flowed, operation and the maintenance cost of current conversion station are reduced, for the operation work of current conversion station galvanization gold utensil
Condition has more preferable adaptability.
The present invention is described by reference to a small amount of embodiment.However, it is known in those skilled in the art, as
What subsidiary Patent right requirement was limited, except the present invention other embodiments disclosed above equally fall the present invention's
In the range of.
Normally, all terms used in the claims are all solved according to them in the usual implication of technical field
Release, unless clearly being defined in addition wherein.All references " one/described/be somebody's turn to do [device, component etc.] " are all opened ground
At least one example being construed in described device, component etc., unless otherwise expressly specified.Any method disclosed herein
Step need not all be run with disclosed accurately order, unless explicitly stated otherwise.
Claims (10)
- A kind of 1. anti-oxidant composite modified hydronalium of zirconium cerium of current conversion station galvanization gold utensil, it is characterised in that the material Material composition includes：Mass percent be 4.30%~5.20% magnesium elements, 0.40%~1.00% manganese element, 0.05%~ 0.25% chromium, 0.05%~0.30% zr element, 0.2%~0.6% Ce elements and aluminium element.
- 2. alloy material according to claim 1, it is characterised in that the mass percent of the magnesium elements be 4.40%~ 4.8%, the mass percent of the manganese element is 0.50%~0.9%, the mass percent of the chromium for 0.1%~ 0.2%, the mass percent of the zr element is 0.07%~0.22%, the mass percents of the Ce elements for 0.3%~ 0.5% Ce elements and aluminium element.
- 3. alloy material according to claim 1 or 2, it is characterised in that for making the through-flow gold utensil of current conversion station.
- A kind of 4. current conversion station galvanization gold utensil composite modified almag material of anti-oxidant zirconium cerium as claimed in claim 1 or 2 The preparation method of material, it is characterised in that methods described includes：Step 1, the pure aluminum in raw material, manganese, chromium, zirconium and cerium are subjected to sampling of weighing according to default mass percent respectively；Step 2, the raw material is placed in smelting equipment by crucible, and the smelting equipment is evacuated to 0.08Pa- 0.1Pa；Step 3, inert gas is passed through into the smelting equipment, the pressure in the smelting equipment is reached 0.05MPa, and connect The power supply for leading to the smelting equipment carries out melting, reaches melting down state to raw material；Step 4, after raw material is melting down, when in the state of to control temperature in the smelting equipment being 800 DEG C according to default refining Between threshold value refined, obtain the first alloy molten solution；Step 5, the power supply of the smelting equipment is cut off, first alloy molten solution is injected into ingot mould and poured into a mould, is obtained Alloy cast ingot is simultaneously cooled down；Step 6, the elemental magnesium in the alloy cast ingot and raw material after the cooling is re-started according to default mass percent Dispensing, repeat step 2-3, after raw material reaches melting down state, it is 650 DEG C -700 DEG C to control the temperature in the smelting equipment Refined under state according to default refining time threshold value, obtain the second alloy molten solution, second alloy molten solution is injected into Poured into a mould in ingot mould, obtain Al-Mg-Mn chromium zirconium cerium alloy material.
- 5. preparation method according to claim 4, it is characterised in that the smelting equipment is vacuum melting furnace.
- 6. preparation method according to claim 5, it is characterised in that the monitor system of the vacuum melting furnace is 20kW.
- 7. preparation method according to claim 4, it is characterised in that the crucible is：High purity aluminium oxide crucible.
- 8. preparation method according to claim 4, it is characterised in that the inert gas is：Argon gas.
- 9. preparation method according to claim 4, it is characterised in that the default refining time threshold value is：3min- 5min。
- 10. preparation method according to claim 4, it is characterised in that the ingot mould is：High purity graphite crucible.
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| CN108998708A (en) * | 2018-08-28 | 2018-12-14 | 四川中物红宇科技有限公司 | Graphene enhances almag composite material of silicon carbide and preparation method thereof |
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