CN106191547A - A kind of alumal and powder metallurgy forming method thereof - Google Patents
A kind of alumal and powder metallurgy forming 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
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
- B22F3/15—Hot isostatic pressing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/0824—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid with a specific atomising fluid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/0888—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid casting construction of the melt process, apparatus, intermediate reservoir, e.g. tundish, devices for temperature control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
Abstract
The invention discloses a kind of alumal and powder metallurgy forming method thereof, this alumal is by weight containing aluminum 70% 75%, manganese 25% 30%；Its powder metallurgy forming method includes 1. raw material, auxiliary material, frock and the preparation of equipment, the 2. vacuum induction melting of alloy, the 3. preparation of master alloy powder, 4. four steps such as powder metallurgy forming.The alumal impurity content of the present invention is low, crystal grain is thin, uniform ingredients, Fe content are high, its powder metallurgy process high purity, contamination-free, without waste gas, easily controllable, steady quality, yield rate height.
Description
Technical field
The present invention relates to aluminium alloy forming field, particularly relate to alumal and powder metallurgy forming method thereof.
Background technology
China's raffinal intermediate alloy ingot chemical analysis performs HB5371-1987 standard, the aluminum wherein specified at present
Manganese intermediate alloy Mn content is 9～11%, and major impurity constituent content requires as follows: Si≤0.04%, Fe≤
0.08%, Mg≤0.05%, other is single≤and 0.05%, other summation≤0.15%.High purity aluminum alloy production requirement impurity unit
Element is the lowest more good, so, the rafifinal intermediate alloy used be it is also proposed higher requirement.The production method announced uses
To the method for mixing, using raw material is 75Mn agent and electrolytic aluminium, carries out melting and being incubated enough time and use mechanical, electric in smelting furnace
After magnetic or manual stirring, it is cast in mould.There is bigger composition segregation in the aluminum manganese intermediate alloy utilizing the method to produce, trace is miscellaneous
The shortcomings such as prime element content is high；Simultaneously as Fe content only has 9～11%, the consumption of intermediate alloy ingot can be relatively the most in use
Greatly, bring more burden and segregation possible to smelting.
In the Patents the most applied for, patent " preparation method of high-purity aluminum-manganese intermediate alloy " (application number:
201110080516.8, publication date: 2011-08-24) disclose the preparation method of a kind of high-purity aluminum-manganese intermediate alloy, but at it
In production process, owing to not having vacuum environment, degasification, the removal of impurity are insufficient；Owing to the crucible material of melting not being limited
System, it is therefore possible to use conventional cast-iron pot, so can cause the content of impurity iron to be difficult to control to, antivacuum molten owing to using
Refining and do not have powdered to process, its original grain refines not, and this results in the alumal of final finished thin as crystal grain
The number of nuclei being provided that during agent is few, skewness, the crystallite dimension that grows up to are big, simultaneously as do not use powder smelting
The mode of gold, it is impossible to (easily segregation if closing of satiating can cause intermediate alloy ingot composition inequality to the proportioning that employing manganese satiety is closed
Even, weigh inaccurate during application), therefore Fe content is low, and i.e. product is inefficient；On the other hand, the method that this invention uses
With conventional method ratio, still can produce and be difficult to process waste gas, waste residue, and owing to not using high-efficiency appliance, whole technical process is not
Alumal quality easy to control, that be finally made is unstable.
Summary of the invention
For drawbacks described above present in prior art, it is desirable to provide a kind of impurity content is low, crystal grain thin, composition
Uniformly, Fe content is high alumal and high purity, contamination-free, without waste gas, easily controllable, steady quality, yield rate high
Metallurgical method.
To achieve these goals, the present invention by the following technical solutions: a kind of alumal powder metallurgy forming method,
Comprise the following steps:
1) raw material, auxiliary material, frock and the preparation of equipment
1. by following weight portion prepare raw material: purity be not less than 99.95% aluminium ingot 70 parts-75 parts, purity be not less than 99.9%
Manganese metal dust 25-30 part；
2. following auxiliary material is prepared: gas atomization high-purity argon gas；
3. prepare following frock: copper crucible, in this crucible, be provided with circulating water channel；Atomization frock, this frock uses pottery
Material makes；Graphite crucible, this graphite crucible is lower outlet crucible, and lower exit is provided with outlet valve；Mould, this mould uses
Rustless steel makes；
4. prepare following equipment: vacuum induction melting furnace, in this vacuum induction melting furnace, be provided with electromagnetic mixing apparatus；Gas mist
Change equipment；Vacuum Heat isostatic pressed stove；
The most above-mentioned all frocks and the equipment in addition to vacuum induction melting furnace are arranged in the furnace chamber of vacuum induction melting furnace；
2) vacuum induction melting of alloy
1. by 1) in the raw material that 1. prepares of step put into graphite crucible, it is thus achieved that molten bath；
2., by the induction installation being arranged on around graphite crucible and power on, after the raw material in molten bath melts, electricity is opened
Magnetic agitating device carries out degasification and Homogenization Treatments, and in molten bath, temperature remains 780 DEG C-800 DEG C, is incubated 20min-30min, obtains
Obtain the foundry alloy liquid that melting completes；
3) preparation of master alloy powder
1. by 1) in the gas atomization high-purity argon gas source of the gas and 1 that 2. prepares of step) in the gas atomization equipment that 4. prepares of step
Connect；By 1) in the atomization frock that 3. prepares of step be arranged on gas atomization equipment puff prot；By 1) in the copper that 3. prepares of step
Crucible processed is fixed on and is atomized air-flow corresponding region, frock exit, and is passed through recirculated water in copper crucible；
2. open gas source switch, open gas atomization equipment, keep air pressure 5MPa-6MPa；
The most slowly open and be arranged on the outlet valve in exit under graphite crucible, be that droplet morphology uniformly drips to foundry alloy liquid, fall
Enter to be atomized in the pipeline on frock top；High-purity argon gas dispels the drop that foundry alloy liquid is formed under gas pressure, forms atomized liquid,
And move along fixation locus with it, atomized liquid sprays；
4. the atomized liquid sprayed sprays into inside along fixation locus recirculated water hydronic copper crucible, and in copper crucible
Chilling becomes fine particle, after treating all foundry alloy liquid mists, collects the fine particle in copper crucible, i.e. obtains required female
Alloy powder；
4) powder metallurgy forming
1. by 3) in the master alloy powder that 3. obtains of step stir after fill full 1) in the mould that 3. prepares of step；
2. the mould having contained master alloy powder is put into 1) in the Vacuum Heat isostatic pressed stove that 4. prepares of step；
3. not higher than 1 × 10 it is evacuated to-4Pa, is heated to 600 DEG C-620 DEG C, is forced into 210MPa-240Mpa, keeps 6h-
8h；
4. after 3. step completes, air cooling of coming out of the stove after furnace cooling 30min-50min；
5. the demoulding, i.e. obtains required alumal.
The alumal obtained according to said method, this alumal is by weight containing aluminum 70%-75%, manganese 25%-30%.
Compared with the prior art, due to the fact that and have employed such scheme, have the advantage that due to during alloy melting just
Have employed vacuum induction melting technique, the low gas pressure in vacuum environment makes the physical process of smelting there occurs change, favorably
In the abjection of gas, under vacuum, the physical property of material can change, and boiling temperature can reduce；Under vacuum condition,
Originally can quickly leave molten metal after being mingled with gas releasing in a metal during metal molten to be taken away by vacuum pump.Originally metal
The compound generated with gas, the gas decomposed to give off in fusion process is the most quickly taken away by vacuum pump；Under vacuum,
Temperature, viscosity, breathability all change, and with the rising of smelting temperature, the moisture content of metal reduces, viscosity reduces, breathability becomes
Good so that in fusion process, air inclusions reduce, it is easier to degassing；Metal refine in a vacuum simultaneously will not be formed pore or
Centre is mingled with；Metal impurities or oxide form gas in a vacuum after its molecular diameter is the least and good dispersion, therefore exist
In vacuum, polyatomic molecule tends to resolve into less former molecular molecule, and the gas molecule of formation is the least, and particle diameter typically exists
1-10nm, is easily taken away by vacuum system；Therefore the original melting using vacuum induction melting furnace to carry out is miscellaneous in making foundry alloy
Matter and air content reach extremely low level, foundry alloy high purity；Owing to being that the graphite crucible used carries out melting, do not have new
Ferrum element and cast iron include impurity element enter alloy, also ensure that the degree of purity of foundry alloy；Owing to being and gas atomization work
Dress and equipment seamless link, foundry alloy liquid use again lower outlet flow out, whole during secondary oxidation all will not occur
Phenomenon, ensure again that the degree of purity of master alloy powder；To sum up, the degree of purity of alloy has obtained ensureing to greatest extent；Due to
Have employed electromagnetic stirring equipment, make the constantly non-directional flowing under vacuum conditions of the molten metal in fusion process, both improve miscellaneous
Matter and the discharge of gas, rising scale, homogenize again composition, makes foundry alloy liquid more uniform, beats for follow-up powder quality
Get well basis；Owing to have employed special atomization frock and water cooled copper mould so that the outlet air pressure of protection and fog gas is permissible
Reaching higher (5MPa-6MPa), and gas is flowed evenly, fogging degree is higher, more carefully, evenly, therefore can obtain
Be not required to sieve the most enough refinement, uniform master alloy powder, and yield rate is close to 100%, meanwhile, no matter crosses degree of saturation how high, now
Homogenization the most completely, does not haves and causes the impact that serviceability is uneven because cost is uneven；Use suitable vacuum
Hip moulding, improves the compactness extent of alloy, reduce further Gas content, also makes the anisotropy of alloy pig simultaneously
Good, the process of furnace cooling more makes internal stress distributed uniform, the most just will not impact the uniformity of forming core；By
All using high-efficiency appliance to be controlled in whole process, therefore this metallurgical method is easily controllable, steady quality.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
In figure: graphite crucible 1, molten bath 2, atomization frock 3, gas atomization equipment 4, high-purity argon gas 5, copper crucible 6, recirculated water lead to
Road 7, induction installation 8, outlet valve 9.
Detailed description of the invention
Embodiment 1:
A kind of alumal, this alumal is by weight containing aluminum 75%, manganese 25%.
This alumal powder metallurgy forming method, comprises the following steps:
1) raw material, auxiliary material, frock and the preparation of equipment
1. by following weight portion prepare raw material: purity be not less than 99.95% aluminium ingot 75 parts, purity be not less than 99.9% manganese gold
Belong to 25 parts of powder；
2. following auxiliary material is prepared: gas atomization high-purity argon gas 5；
3. prepare following frock: copper crucible 6, in this crucible, be provided with circulating water channel 7；Atomization frock 3, this frock uses pottery
Ceramic material makes；Graphite crucible 1, this graphite crucible 1 is lower outlet crucible, and lower exit is provided with outlet valve 9；Mould, this mould
Tool uses rustless steel to make；
4. prepare following equipment: vacuum induction melting furnace, in this vacuum induction melting furnace, be provided with electromagnetic mixing apparatus；Gas mist
Change equipment 4；Vacuum Heat isostatic pressed stove；
The most above-mentioned all frocks and the equipment in addition to vacuum induction melting furnace are arranged in the furnace chamber of vacuum induction melting furnace；
2) vacuum induction melting of alloy
1. by 1) in the raw material that 1. prepares of step put into graphite crucible 1, it is thus achieved that molten bath 2；
2., by the induction installation 8 being arranged on around graphite crucible 1 and power on, after the raw material in molten bath 2 melts, open
Electromagnetic mixing apparatus carries out degasification and Homogenization Treatments, and in molten bath 2, temperature remains 780 DEG C, is incubated 20min, it is thus achieved that melting is complete
The foundry alloy liquid become；
3) preparation of master alloy powder
1. by 1) in gas atomization high-purity argon gas 5 source of the gas and 1 that 2. prepares of step) in the gas atomization equipment that 4. prepares of step
4 connect；By 1) in the atomization frock 3 that 3. prepares of step be arranged on gas atomization equipment 4 puff prot；By 1) in step 3. prepare
Copper crucible 6 is fixed on and is atomized air-flow corresponding region, frock 3 exit, and is passed through recirculated water in copper crucible 6；
2. open gas source switch, open gas atomization equipment 4, keep air pressure 5MPa；
The most slowly open the outlet valve 9 being arranged on 1 time exit of graphite crucible, be that droplet morphology uniformly drips to foundry alloy liquid,
Fall in the pipeline on atomization frock 3 top；High-purity argon gas 5 dispels the drop that foundry alloy liquid is formed under gas pressure, forms mist
Changing liquid, and move along fixation locus with it, atomized liquid sprays；
4. the atomized liquid sprayed sprays into inside along fixation locus recirculated water hydronic copper crucible 6, and at copper crucible 6
Interior chilling becomes fine particle, after treating all foundry alloy liquid mists, collects the fine particle in copper crucible 6, i.e. obtains institute
Need master alloy powder；
4) powder metallurgy forming
1. by 3) in the master alloy powder that 3. obtains of step stir after fill full 1) in the mould that 3. prepares of step；
2. the mould having contained master alloy powder is put into 1) in the Vacuum Heat isostatic pressed stove that 4. prepares of step；
3. 1 × 10 it is evacuated to-4Pa, is heated to 600 DEG C, is forced into 210MPa, keeps 6h；
4. after 3. step completes, air cooling of coming out of the stove after furnace cooling 30min；
5. the demoulding, i.e. obtains required alumal.
Embodiment 2:
A kind of alumal, this alumal is by weight containing aluminum 70%, manganese 30%.
This alumal powder metallurgy forming method, comprises the following steps:
1) raw material, auxiliary material, frock and the preparation of equipment
1. by following weight portion prepare raw material: purity be not less than 99.95% aluminium ingot 70 parts, purity be not less than 99.9% manganese gold
Belong to 30 parts of powder；
2. following auxiliary material is prepared: gas atomization high-purity argon gas 5；
3. prepare following frock: copper crucible 6, in this crucible, be provided with circulating water channel 7；Atomization frock 3, this frock uses pottery
Ceramic material makes；Graphite crucible 1, this graphite crucible 1 is lower outlet crucible, and lower exit is provided with outlet valve 9；Mould, this mould
Tool uses rustless steel to make；
4. prepare following equipment: vacuum induction melting furnace, in this vacuum induction melting furnace, be provided with electromagnetic mixing apparatus；Gas mist
Change equipment 4；Vacuum Heat isostatic pressed stove；
The most above-mentioned all frocks and the equipment in addition to vacuum induction melting furnace are arranged in the furnace chamber of vacuum induction melting furnace；
2) vacuum induction melting of alloy
1. by 1) in the raw material that 1. prepares of step put into graphite crucible 1, it is thus achieved that molten bath 2；
2., by the induction installation 8 being arranged on around graphite crucible 1 and power on, after the raw material in molten bath 2 melts, open
Electromagnetic mixing apparatus carries out degasification and Homogenization Treatments, and in molten bath 2, temperature remains 800 DEG C, is incubated 30min, it is thus achieved that melting is complete
The foundry alloy liquid become；
3) preparation of master alloy powder
1. by 1) in gas atomization high-purity argon gas 5 source of the gas and 1 that 2. prepares of step) in the gas atomization equipment that 4. prepares of step
4 connect；By 1) in the atomization frock 3 that 3. prepares of step be arranged on gas atomization equipment 4 puff prot；By 1) in step 3. prepare
Copper crucible 6 is fixed on and is atomized air-flow corresponding region, frock 3 exit, and is passed through recirculated water in copper crucible 6；
2. open gas source switch, open gas atomization equipment 4, keep air pressure 6MPa；
The most slowly open the outlet valve 9 being arranged on 1 time exit of graphite crucible, be that droplet morphology uniformly drips to foundry alloy liquid,
Fall in the pipeline on atomization frock 3 top；High-purity argon gas 5 dispels the drop that foundry alloy liquid is formed under gas pressure, forms mist
Changing liquid, and move along fixation locus with it, atomized liquid sprays；
4. the atomized liquid sprayed sprays into inside along fixation locus recirculated water hydronic copper crucible 6, and at copper crucible 6
Interior chilling becomes fine particle, after treating all foundry alloy liquid mists, collects the fine particle in copper crucible 6, i.e. obtains institute
Need master alloy powder；
4) powder metallurgy forming
1. by 3) in the master alloy powder that 3. obtains of step stir after fill full 1) in the mould that 3. prepares of step；
2. the mould having contained master alloy powder is put into 1) in the Vacuum Heat isostatic pressed stove that 4. prepares of step；
3. 1 × 10 it is evacuated to-5Pa, is heated to 620 DEG C, is forced into 240Mpa, keeps 8h；
4. after 3. step completes, air cooling of coming out of the stove after furnace cooling 50min；
5. the demoulding, i.e. obtains required alumal.
Present invention is particularly suitable for the grain refiner for Aero-Space Seiko product.
Described above to the disclosed embodiments, only for making professional and technical personnel in the field be capable of or using this
Bright.Multiple amendment to these embodiments will be apparent from for those skilled in the art, is determined herein
The General Principle of justice can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, originally
Invention is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein and features of novelty
The widest consistent scope.
Claims (2)
1. an alumal powder metallurgy forming method, it is characterised in that comprise the following steps:
1) raw material, auxiliary material, frock and the preparation of equipment
1. by following weight portion prepare raw material: purity be not less than 99.95% aluminium ingot 70 parts-75 parts, purity be not less than 99.9%
Manganese metal dust 25-30 part；
2. following auxiliary material is prepared: gas atomization high-purity argon gas (5)；
3. prepare following frock: copper crucible (6), in this crucible, be provided with circulating water channel (7)；Atomization frock (3), this frock
Use ceramic material；Graphite crucible (1), this graphite crucible is lower outlet crucible, and lower exit is provided with outlet valve (9)；
Mould, this mould uses rustless steel to make；
4. following equipment is prepared: gas atomization equipment (4)；Vacuum Heat isostatic pressed stove；Vacuum induction melting furnace, this vacuum induction melts
Electromagnetic mixing apparatus it is provided with in furnace；
The most above-mentioned all frocks and the equipment in addition to vacuum induction melting furnace are arranged in the furnace chamber of vacuum induction melting furnace；
2) vacuum induction melting of alloy
1. by 1) in the raw material that 1. prepares of step put into graphite crucible (1), it is thus achieved that molten bath (2)；
2. will be arranged on the induction installation (8) around graphite crucible (1) and power on, treat the raw material fusing in molten bath (2)
After, to open electromagnetic mixing apparatus and carry out degasification and Homogenization Treatments, molten bath (2) interior temperature remains 780 DEG C-800 DEG C, insulation
20min-30min, it is thus achieved that the foundry alloy liquid that melting completes；
3) preparation of master alloy powder
1. by 1) in gas atomization high-purity argon gas (5) source of the gas and 1 that 2. prepares of step) in the gas atomization that 4. prepares of step set
Standby (4) connect；By 1) in the atomization frock (3) that 3. prepares of step be arranged on gas atomization equipment (4) puff prot；By 1) in step
3. the copper crucible (6) prepared is fixed on and is atomized air-flow corresponding region, frock (3) exit, and logical in copper crucible (6)
Enter recirculated water；
2. open gas source switch, open gas atomization equipment (4), keep air pressure 5MPa-6MPa；
The most slowly open the outlet valve (9) being arranged on exit under graphite crucible (1), be that droplet morphology uniformly drips to foundry alloy liquid
Fall, fall in the pipeline on atomization frock (3) top；High-purity argon gas (5) dispels the drop that foundry alloy liquid is formed under gas pressure,
Forming atomized liquid, and move along fixation locus with it, atomized liquid sprays；
4. the atomized liquid sprayed sprays into inside along fixation locus recirculated water hydronic copper crucible (6), and at copper earthenware
Crucible (6) interior chilling becomes fine particle, after treating all foundry alloy liquid mists, collects the fine particle in copper crucible (6), i.e.
Obtain required master alloy powder；
4) powder metallurgy forming
1. by 3) in the master alloy powder that 3. obtains of step stir after fill full 1) in the mould that 3. prepares of step；
2. the mould having contained master alloy powder is put into 1) in the Vacuum Heat isostatic pressed stove that 4. prepares of step；
3. not higher than 1 × 10 it is evacuated to-4Pa, is heated to 600 DEG C-620 DEG C, is forced into 210MPa-240Mpa, keeps 6h-
8h；
4. after 3. step completes, air cooling of coming out of the stove after furnace cooling 30min-50min；
5. the demoulding, i.e. obtains required alumal.
2. the alumal obtained according to said method, it is characterised in that: this alumal is by weight containing aluminum 70%-75%, manganese
25%-30%。
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106835033A (en) * | 2016-12-21 | 2017-06-13 | 包头稀土研究院 | The manufacture method of high Mn content alumal target |
| CN107570718A (en) * | 2017-07-13 | 2018-01-12 | 张家港创博金属科技有限公司 | Multicomponent alloy powder preparation method and device |
| CN110453041A (en) * | 2019-08-14 | 2019-11-15 | 上海盛宝冶金科技有限公司 | A kind of steelmaking aluminum manganese alloy deoxidier and its deoxidation in steel making method |
| CN111496262A (en) * | 2020-04-26 | 2020-08-07 | 江苏华企铝业科技股份有限公司 | Aluminum-cobalt alloy and powder metallurgy forming method thereof |
| CN114082937A (en) * | 2020-08-03 | 2022-02-25 | 北京理工大学 | Spherical atomized aluminum-manganese-based multi-element alloy powder and preparation method thereof |
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| CN106835033A (en) * | 2016-12-21 | 2017-06-13 | 包头稀土研究院 | The manufacture method of high Mn content alumal target |
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| CN110453041A (en) * | 2019-08-14 | 2019-11-15 | 上海盛宝冶金科技有限公司 | A kind of steelmaking aluminum manganese alloy deoxidier and its deoxidation in steel making method |
| CN111496262A (en) * | 2020-04-26 | 2020-08-07 | 江苏华企铝业科技股份有限公司 | Aluminum-cobalt alloy and powder metallurgy forming method thereof |
| CN111496262B (en) * | 2020-04-26 | 2022-08-02 | 江苏华企铝业科技股份有限公司 | Aluminum-cobalt alloy and powder metallurgy forming method thereof |
| CN114082937A (en) * | 2020-08-03 | 2022-02-25 | 北京理工大学 | Spherical atomized aluminum-manganese-based multi-element alloy powder and preparation method thereof |
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