CN106893903A - A kind of current conversion station galvanization gold utensil anti-oxidant Al-Mg-Mn chromium hafnium alloy material and preparation method thereof - Google Patents
A kind of current conversion station galvanization gold utensil anti-oxidant Al-Mg-Mn chromium hafnium alloy material and preparation method thereof Download PDFInfo
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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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- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Abstract
The invention provides a kind of current conversion station galvanization gold utensil anti-oxidant Al-Mg-Mn chromium hafnium alloy material and preparation method thereof.The alloy material is composed of the following components by mass percentage：Magnesium elements 4.3%~5.2%, manganese element 0.4%~1%, chromium 0.05%~0.25%, hafnium element 0.05%~0.3%, balance of aluminium element.The current conversion station galvanization gold utensil alloy material that the present invention is provided, improve the high temperature oxidation resistance of former Al-Mg-Mn evanohm, power grid accident incidence caused by the high temperature Quick Oxidation phenomenon due to former gold utensil material can effectively be reduced, the safe and stable operation of current conversion station is ensure that, operation and the maintenance cost of current conversion station is reduced.
Description
Technical field
The present invention relates to the design of power transmission engineering gold utensil and operation maintenance technical field, in particular to a kind of current conversion station
Galvanization gold utensil anti-oxidant Al-Mg-Mn chromium hafnium alloy material 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, with the metal for transmitting machinery, electrical load and 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 Al2O3It is the oxide-film of main component.Due to solid-state Al2O3It is the non-conductor of electricity, gold
Resistance increases after tool is aoxidized.Resistance increase makes gold utensil pass through caloric value during same current to be increased, and temperature is raised.Temperature is raised
Gold utensil resistance is set further to increase, such vicious circle ultimately results in gold utensil overheat fusing, causes power grid accident.Therefore, need badly
The high temperature oxidation resistance of Al-Mg-Mn evanohm is improved using modification processing method, so as to effectively mitigate the quick oxygen of alloy high-temp
The harm of change behavior, it is ensured that the safe and stable operation of current conversion station, reduces operation and the maintenance cost of current conversion station.
The content of the invention
In consideration of it, the present invention proposes a kind of current conversion station galvanization gold utensil alloy material and preparation method thereof, it is intended to solve
The poor problem for being easily caused power grid accident of high temperature oxidation resistance of certainly existing current conversion station galvanization gold utensil alloy material.
On one side, the present invention proposes a kind of alloy material, and the alloy material is by mass percentage by following components group
Into：Magnesium elements 4.3%~5.2%, manganese element 0.4%~1%, chromium 0.05%~0.25%, hafnium element 0.05%~
0.3%, balance of aluminium element.
Further, in above-mentioned alloy material, the alloy material is composed of the following components by mass percentage：Magnesium elements
4.4%~4.8%, manganese element 0.5%~0.9%, chromium 0.1%~0.2%, hafnium element 0.05%~0.15%, surplus
It is aluminium element.
The alloy material that the present invention is provided, improves the high temperature oxidation resistance of former Al-Mg-Mn evanohm, can effectively drop
Power grid accident incidence caused by the low high temperature Quick Oxidation phenomenon due to former gold utensil material, it is ensured that the safety and stability of current conversion station
Operation, reduces operation and the maintenance cost of current conversion station.
On the other hand, the invention allows for a kind of current conversion station galvanization gold utensil, by the alloy material system of any of the above-described
Into.The gold utensil is made of above-mentioned alloy material, therefore also has identical high temperature oxidation resistance, with identical technology effect
Really.
Another aspect, the invention allows for a kind of preparation method of alloy material, the preparation method is comprised the following steps：
First step, melting is placed according to being put into crucible after preset ratio weighing and burden by the pure aluminum in raw material, manganese, chromium, hafnium
In equipment, smelting equipment is evacuated to 0.08Pa-0.1Pa, inert gas is filled with to the smelting equipment inner chamber, in protection gas
Melting is carried out under atmosphere, melting to raw material is started after smelting equipment inner chamber pressure reaches 0.05MPa and is reached melting down state；The
Two steps, after raw material is melting down, refine 2min~8min at 780 DEG C -820 DEG C, obtain the first alloy molten solution；Third step,
The first alloy molten solution in the crucible is poured into ingot mould and is cast, obtain alloy pig；Four steps, by the alloy pig
Taken out after cooling, and be put into crucible and be placed in melting according to preset ratio weighing and burden and after feeding with the elemental magnesium in raw material
In equipment, smelting equipment is evacuated to 0.08Pa-0.1Pa, inert gas is filled with to the smelting equipment inner chamber, in protection gas
Melting is carried out under atmosphere, melting is started after smelting equipment inner chamber pressure reaches 0.05MPa, melting down state is reached to raw material
Afterwards, 2min~8min is refined at 650 DEG C -700 DEG C, the second alloy molten solution is obtained, and second alloy molten solution is poured into ingot
Cast in mould, finally given Al-Mg-Mn chromium hafnium alloy material.
Alloy material prepared in accordance with the present invention, improves the high temperature oxidation resistance of former Al-Mg-Mn evanohm, Neng Gouyou
Effect is reduced due to power grid accident incidence caused by the high temperature Quick Oxidation phenomenon of former gold utensil material, it is ensured that the safety of current conversion station
Stable operation, reduces operation and the maintenance cost of current conversion station.
Further, in above-mentioned preparation method, in the first step, aluminium element, manganese element, chromium, hafnium element are accounted for
The mass percent of raw material is respectively：93.25%~95.2%, 0.4%~1%, 0.05%~0.25%, 0.05%~
0.3%；In the four steps, the mass percent that magnesium elements account for raw material is 4.3%~5.2%.
Further, in above-mentioned preparation method, in the first step, aluminium element, manganese element, chromium, hafnium element are accounted for
The mass percent of raw material is respectively：93.95%~94.95%, 0.5%~0.9%, 0.1%~0.2%, 0.05%~
0.15%；In the four steps, the mass percent that magnesium elements account for raw material is 4.4%~4.8%.
Further, in above-mentioned preparation method, the inert gas is one or more in argon gas, helium or neon.
Further, in above-mentioned preparation method, the crucible is high purity aluminium oxide crucible.
Further, in above-mentioned preparation method, in the second step, the time of refining is 3min~5min.
Further, in above-mentioned preparation method, in the third step, it is to the ingot mould that the alloy molten solution is cast
High purity graphite ingot mould.
In the present invention, first by aluminium, manganese, chromium, hafnium simple substance simultaneously carry out melting obtain ingot casting, the ingot casting that then will be obtained with
Magnesium simple substance carries out secondary smelting, can effectively prevent the scaling loss of magnesium simple substance.Compared with prior art, using two step smelting technologies, nothing
Need the addition of intermediate alloy, both save raw material, remove the tedious steps of multiple melting intermediate alloy from again, preparation process is simple and
Operation is easy.
Brief description of the drawings
Fig. 1 is the high-temperature oxydation weightening curve of alloy provided in an embodiment of the present invention and unmodified preceding alloy.
Specific embodiment
In order to further appreciate that the present invention, the preferred embodiments of the invention are described with reference to embodiment, but
It is it should be appreciated that these descriptions are simply to further illustrate the features and advantages of the present invention rather than to patent requirements of the present invention
Limitation.
The invention discloses a kind of alloy material, the alloy material is composed of the following components by mass percentage：Magnesium elements
4.3%~5.2%, manganese element 0.4%~1%, chromium 0.05%~0.25%, hafnium element 0.01%~0.5% is balance of
Aluminium element.Preferably, the alloy material by mass percentage can be with composed of the following components:Magnesium elements 4.4%~4.8%, manganese
Element 0.5%~0.9%, chromium 0.1%~0.2%, hafnium element 0.05%~0.15%, balance of aluminium element
Specifically, magnesium elements, manganese element, chromium, aluminium element, hafnium element are derived from the bulk list of magnesium, manganese, chromium, aluminium, hafnium
Matter.The present embodiment is not particularly limited to the source of magnesium, manganese, chromium, aluminium, hafnium simple substance, with side well-known to those skilled in the art
Method is prepared or commercially available.The present embodiment does not do any restriction to the purity of magnesium, manganese, chromium, aluminium, hafnium, with people in the art
It is used to prepare the elemental purity of Al-Mg-Mn evanohm known to member.In the present embodiment, can not be kept away in Al-Mg-Mn chromium hafnium alloy
That exempts from also includes impurity element.The present embodiment does not do any restriction to the species and content of impurity element, with people in the art
The content of the impurity element in Al-Mg-Mn evanohm known to member.
As can be seen that due to adding hafnium element in alloy material in the present embodiment, oxygen of the element in alloy surface
Change film and alloy substrate interfacial segregation and form oxide bolt, the oxide bolt gos deep into alloy matrix aluminum, by pinning effect
Improve the anti-strip ability of oxide-film.Active element hafnium ion has tied up extending out for Al ions in outside diffusion process simultaneously
Dissipate passage and diffusion rate is less than Al ions, so as to hinder the external diffusion of Al ions, reduce the life of alloy surface oxide-film
Speed long, improves the high temperature oxidation resistance of former Al-Mg-Mn evanohm.
Present invention also offers a kind of current conversion station galvanization gold utensil, it is made up of the above-mentioned alloy material of the present invention.
By the present embodiment provide alloy material be used in current conversion station galvanization gold utensil making in, can effectively reduce due to
Power grid accident incidence caused by the high temperature Quick Oxidation phenomenon of former gold utensil material, it is ensured that the safe and stable operation of current conversion station,
Reduce operation and the maintenance cost of current conversion station.
Present invention also offers a kind of preparation method of current conversion station galvanization gold utensil alloy material, the method includes following
Step：
First step, by the pure aluminum in raw material, manganese, chromium, hafnium according to being put into after preset ratio weighing and burden in crucible simultaneously
It is placed in smelting equipment, smelting equipment is evacuated to 0.08Pa-0.1Pa, inert gas is filled with to smelting equipment inner chamber, is protecting
Melting is carried out under shield atmosphere, melting to raw material is started after smelting equipment inner chamber pressure reaches 0.05MPa and is reached melting down state.
Specifically, the mixture that raw material can be made up of block pure aluminum, manganese, chromium, hafnium.Can be used in charging process resistance to
High temperature, crucible resistant to chemical etching, for example, alumina crucible.Preferably, can be fed using high purity aluminium oxide crucible,
The crucible that i.e. alumina content is more than 99%.The specification of crucible can be determined as the case may be, the present embodiment to it not
Do any restriction.Smelting equipment can be vaccum sensitive stove, and the model of vaccum sensitive stove can be determined according to actual conditions,
The present embodiment does not do any restriction to it.Inert gas can be one or more in argon gas, helium or neon, to prevent from closing
Gold oxidation at high operating temperatures.During specific implementation, during melting, the power of vacuum melting furnace can be 20KW.
Second step, after raw material is melting down, refining 2min~8min obtains the first alloy molten solution at 780 DEG C -820 DEG C.
Preferably, the time of refining can be 3min~5min.During specific implementation, electromagnetic agitation can be carried out to alloy molten solution, make conjunction
Golden liquation reaches uniform state.
Third step, the first alloy molten solution in crucible is poured into ingot mould and is cast, and obtains alloy pig.Specific implementation
When, alloy molten solution to be cast after the power supply for cutting off the smelting equipment, the ingot mould cast to alloy molten solution can be
High purity graphite ingot mould.
Four steps, takes out after alloy pig is cooled down, and with raw material in elemental magnesium according to preset ratio weighing and burden and
It is put into after charging in crucible and is placed in smelting equipment, smelting equipment is evacuated to 0.08Pa-0.1Pa, in smelting equipment
Chamber is filled with inert gas, and melting is carried out under protective atmosphere, and melting is started after smelting equipment inner chamber pressure reaches 0.05MPa,
After reaching melting down state to raw material, 2min~8min is refined at 650 DEG C -700 DEG C, obtain the second alloy molten solution, and by second
Alloy molten solution is poured into ingot mould and cast, and finally gives Al-Mg-Mn chromium hafnium alloy material.Preferably, in the step, refining
Time can be 3min~5min.Specifically, before alloy pig takes out, air is filled with breaking vacuum shape to smelting equipment inner chamber
State.
In the present embodiment, pure aluminum, manganese, chromium, hafnium, the weight proportion of magnesium need to meet following condition in raw material：The first step
In rapid, the mass percent that aluminium element, manganese element, chromium, hafnium element account for raw material is respectively：93.25%~95.2%,
0.4%~1%, 0.05%~0.25%, 0.05%~0.3%；In four steps, the mass percent that magnesium elements account for raw material is
4.3%~5.2%.Preferably, in first step, aluminium element, manganese element, chromium, hafnium element account for the mass percent of raw material
Respectively：93.95%~94.95%, 0.5%~0.9%, 0.1%~0.2%, 0.05%~0.15%；In four steps,
The mass percent that magnesium elements account for raw material is 4.4%~4.8%.During specific implementation, when the simple substance of each element is chosen, Ke Yixuan
Select the simple substance for causing that the percentage purity within the above range of aluminium element, manganese element, chromium, hafnium element, magnesium elements is higher.
For example, in the raw material of 1000g, aluminium simple substance, manganese simple substance, chromium simple substance, hafnium simple substance, the quality of magnesium simple substance can be respectively：939.5g、
9g, 2g, 1.5g, 48g or 949.5g, 5g, 1g, 0.5g, 44g etc..
Preparation method provided in an embodiment of the present invention, carries out melting and obtains ingot casting simultaneously by aluminium, manganese, chromium, hafnium simple substance first,
Then the ingot casting that will be obtained carries out secondary smelting with magnesium simple substance, and refining temperature control is reduced at 650 DEG C -700 DEG C during secondary smelting
Refining temperature, can effectively prevent the scaling loss of magnesium simple substance.Compared with prior art, using two step smelting technologies, closed without centre
The addition of gold, both saves raw material, removes the tedious steps of multiple melting intermediate alloy from again, preparation process is simple and operation is easy
OK.
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, is described in more detail below in conjunction with specific embodiment to the present invention：
Embodiment 1
Weighing 939.5g, 9g, 2g and 1.5g bulk pure aluminum, manganese, chromium, hafnium respectively carries out dispensing；Using high purity aluminium oxide
Above-mentioned block pure aluminum, manganese, chromium, hafnium are first fed and are put into the inner chamber of smelting equipment by crucible, and smelting equipment inner chamber is taken out very
It is empty to 0.08Pa；Argon gas is filled with to smelting equipment inner chamber, and after smelting equipment inner chamber pressure is reached 0.05Mpa, with 20KW's
Power carries out melting to smelting equipment power transmission to raw material；Alloy is obtained after raw material is melting down, after refining 2min at 780 DEG C to melt
Liquid；Cut-out smelting equipment power supply, using obtaining alloy pig after high purity graphite direct casting alloy molten solution；Filled to smelting equipment inner chamber
Enter air vacuum breaker, taken out after after alloy pig cooling.By melted alloy pig and 48g bulk elemental magnesium weighing and burdens and charging
After be put into crucible and be placed in smelting equipment, smelting equipment is evacuated to 0.1Pa, be filled with indifferent gas to smelting equipment inner chamber
Body, carries out melting under protective atmosphere, and power transmission melting is started after smelting equipment inner chamber pressure reaches 0.05MPa, is reached to raw material
To after melting down state, 3min is refined at 650 DEG C, obtain the second alloy molten solution, and the second alloy molten solution is poured into ingot mould
Row casting, finally gives Al-Mg-Mn chromium hafnium alloy material.
Embodiment 2
Weighing 949.5g, 5g, 1g and 0.5g bulk pure aluminum, manganese, chromium, hafnium respectively carries out dispensing；Using high purity aluminium oxide
Above-mentioned each block simple substance is fed and is put into the inner chamber of smelting equipment by crucible, and smelting equipment inner chamber is evacuated into 0.09Pa；
Air is filled with to smelting equipment inner chamber, and after smelting equipment inner chamber pressure is reached 0.05Mpa, set to melting with the power of 20KW
Standby power transmission carries out melting to raw material；After raw material is melting down, alloy molten solution is obtained after refining 8min at 800 DEG C；Cut-out melting sets
Stand-by power source, using obtaining alloy pig after high purity graphite direct casting alloy molten solution；Air vacuum breaker is filled with to smelting equipment inner chamber,
Taken out after after alloy pig cooling.To be put into crucible after melted alloy pig and 44g bulk elemental magnesium weighing and burdens and charging
It is placed in smelting equipment, smelting equipment is evacuated to 0.09Pa, inert gas is filled with to smelting equipment inner chamber, in protection gas
Melting is carried out under atmosphere, power transmission melting is started after smelting equipment inner chamber pressure reaches 0.05MPa, melting down state is reached to raw material
Afterwards, 5min is refined at 675 DEG C, obtains the second alloy molten solution, and the second alloy molten solution is poured into ingot mould cast, finally
Obtain Al-Mg-Mn chromium hafnium alloy material.
Embodiment 3
Weighing 932.5g, 10g, 2.5g and 3g bulk pure aluminum, manganese, chromium, hafnium respectively carries out dispensing；Using high purity aluminium oxide
Above-mentioned each block simple substance is fed and is put into the inner chamber of smelting equipment by crucible, and smelting equipment inner chamber is evacuated into 0.1Pa；To
Smelting equipment inner chamber is filled with neon, and after smelting equipment inner chamber pressure is reached 0.05Mpa, with the power of 20KW to smelting equipment
Power transmission carries out melting to raw material；After raw material is melting down, alloy molten solution is obtained after refining 5min at 820 DEG C；Cut-out smelting equipment
Power supply, alloy pig is obtained using high purity graphite direct casting alloy molten solution；Nitrogen vacuum breaker is filled with to smelting equipment inner chamber, waits to close
Taken out after ingot cooling.Juxtaposition in crucible will be put into after melted alloy pig and 52g bulk elemental magnesium weighing and burdens and charging
In smelting equipment, smelting equipment is evacuated to 0.1Pa, inert gas is filled with to smelting equipment inner chamber, under protective atmosphere
Melting is carried out, power transmission melting is started after smelting equipment inner chamber pressure reaches 0.05MPa, after reaching melting down state to raw material,
8min is refined at 700 DEG C, the second alloy molten solution is obtained, and the second alloy molten solution is poured into ingot mould is cast, finally given
Al-Mg-Mn chromium hafnium alloy material.
Embodiment 4
Weighing 952g, 4g, 0.5g and 0.5g bulk pure aluminum, manganese, chromium, hafnium respectively carries out dispensing；Using high purity aluminium oxide
Above-mentioned each block simple substance is fed and is put into the inner chamber of smelting equipment by crucible, and smelting equipment inner chamber is evacuated into 0.1Pa；To
Smelting equipment inner chamber is filled with neon, and after smelting equipment inner chamber pressure is reached 0.05Mpa, with the power of 20KW to smelting equipment
Power transmission carries out melting to raw material；After raw material is melting down, alloy molten solution is obtained after refining 3min at 800 DEG C；Cut-out smelting equipment
Power supply, alloy pig is obtained using high purity graphite direct casting alloy molten solution；Nitrogen vacuum breaker is filled with to smelting equipment inner chamber, waits to close
Taken out after ingot cooling.Juxtaposition in crucible will be put into after melted alloy pig and 43g bulk elemental magnesium weighing and burdens and charging
In smelting equipment, smelting equipment is evacuated to 0.08Pa, inert gas is filled with to smelting equipment inner chamber, under protective atmosphere
Melting is carried out, power transmission melting is started after smelting equipment inner chamber pressure reaches 0.05MPa, after reaching melting down state to raw material,
2min is refined at 700 DEG C, the second alloy molten solution is obtained, and the second alloy molten solution is poured into ingot mould is cast, finally given
Al-Mg-Mn chromium hafnium alloy material.
The Al-Mg-Mn chromium hafnium alloy sample that will be prepared according to embodiment 1-4 and Al-Mg-Mn chromium sample of the prior art, root
According to standard HB 5258-2000《The inoxidizability determination test method of steel and high temperature alloy》Regulation under same test conditions
High-temperature oxidation test is carried out, result of the test is as shown in Figure 1, it can be seen that according to Al-Mg-Mn chromium hafnium alloy prepared by embodiment 1-4
The oxide growth speed of sample is significantly lower than Al-Mg-Mn chromium sample of the prior art, and its high temperature oxidation resistance is better than existing
Al-Mg-Mn chromium sample in technology.
Obviously, those skilled in the art can carry out various changes and modification without deviating from essence of the invention to the present invention
God and scope.So, if these modifications of the invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising these changes and modification.
Claims (10)
1. a kind of alloy material, it is characterised in that the alloy material is composed of the following components by mass percentage：Magnesium elements
4.3%~5.2%, manganese element 0.4%~1%, chromium 0.05%~0.25%, hafnium element 0.05%~0.3% is balance of
Aluminium element.
2. alloy material according to claim 1, it is characterised in that the alloy material is by mass percentage by following components
Composition：Magnesium elements 4.4%~4.8%, manganese element 0.5%~0.9%, chromium 0.1%~0.2%, hafnium element 0.05%~
0.15%, balance of aluminium element.
3. the preparation method of the alloy material described in a kind of claim 1 or 2, it is characterised in that comprise the following steps：
First step, the pure aluminum in raw material, manganese, chromium, hafnium are placed according to being put into crucible after preset ratio weighing and burden
In smelting equipment, smelting equipment is evacuated to 0.08Pa-0.1Pa, inert gas is filled with to the smelting equipment inner chamber, protected
Melting is carried out under shield atmosphere, melting is started after smelting equipment inner chamber pressure reaches 0.05MPa, melting down shape is reached to raw material
State；
Second step, after raw material is melting down, refines 2min~8min at 780 DEG C -820 DEG C, obtains the first alloy molten solution；
Third step, the first alloy molten solution in the crucible is poured into ingot mould and is cast, and obtains alloy pig；
Four steps, will the alloy pig cool down after take out, and with raw material in elemental magnesium according to preset ratio weighing and burden and
It is put into after charging in crucible and is placed in smelting equipment, smelting equipment is evacuated to 0.08Pa-0.1Pa, is set to the melting
Standby inner chamber is filled with inert gas, and melting is carried out under protective atmosphere, is opened after smelting equipment inner chamber pressure reaches 0.05MPa
Beginning melting, after reaching melting down state to raw material, refines 2min~8min at 650 DEG C -700 DEG C, obtains the second alloy molten solution, and
Second alloy molten solution is poured into ingot mould and is cast, finally give Al-Mg-Mn chromium hafnium alloy material.
4. preparation method according to claim 3, it is characterised in that in the first step, aluminium element, manganese element, chromium
The mass percent that element, hafnium element account for raw material is respectively：93.25%~95.2%, 0.4%~1%, 0.05%~
0.25%th, 0.05%~0.3%；In the four steps, the mass percent that magnesium elements account for raw material is 4.3%~5.2%.
5. preparation method according to claim 4, it is characterised in that in the first step, aluminium element, manganese element, chromium
The mass percent that element, hafnium element account for raw material is respectively：93.95%~94.95%, 0.5%~0.9%, 0.1%~
0.2%th, 0.05%~0.15%；In the four steps, the mass percent that magnesium elements account for raw material is 4.4%~4.8%.
6. preparation method according to claim 3, it is characterised in that during the inert gas is argon gas, helium or neon
One or more.
7. preparation method according to claim 3, it is characterised in that the crucible is high purity aluminium oxide crucible.
8. the preparation method according to any one of claim 3 to 6, it is characterised in that in the second step, refining
Time is 3min~5min；In the four steps, the time of refining is 3~5min.
9. the preparation method according to any one of claim 3 to 6, it is characterised in that in the third step, to described
The ingot mould that alloy molten solution is cast is high purity graphite ingot mould.
10. a kind of current conversion station galvanization gold utensil, it is characterised in that the alloy material as described in claim 1 or 2 is made.
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| CN201710182252.4A CN106893903B (en) | 2017-03-24 | 2017-03-24 | Anti-oxidation aluminum-magnesium-manganese-chromium-hafnium alloy material for current-carrying hardware of converter station and preparation method thereof |
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| CN201710182252.4A CN106893903B (en) | 2017-03-24 | 2017-03-24 | Anti-oxidation aluminum-magnesium-manganese-chromium-hafnium alloy material for current-carrying hardware of converter station and preparation method thereof |
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| CN107675039A (en) * | 2017-08-07 | 2018-02-09 | 中国电力科学研究院 | A kind of current conversion station galvanization gold utensil anti-oxidant composite modified hydronalium of zirconium cerium and preparation method thereof |
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| CN101233252A (en) * | 2005-08-16 | 2008-07-30 | 阿勒里斯铝业科布伦茨有限公司 | High strength weldable al-mg alloy |
| CN101117668A (en) * | 2007-09-13 | 2008-02-06 | 中国铝业股份有限公司 | Method for adding magnesium during production process of aluminum-magnesium alloy ingot |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107675039A (en) * | 2017-08-07 | 2018-02-09 | 中国电力科学研究院 | A kind of current conversion station galvanization gold utensil anti-oxidant composite modified hydronalium of zirconium cerium and preparation method thereof |
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