CN107671304A - A kind of method of carbothermic method synthesis of aluminium alloy powder - Google Patents
A kind of method of carbothermic method synthesis of aluminium alloy powder Download PDFInfo
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Abstract
A kind of method of carbothermic method synthesis of aluminium alloy powder; metal oxide of the particle diameter less than 50 μm is mixed with industrial aluminium ore of the particle diameter less than 100 μm; obtain mixed-powder; mixed-powder is mixed after under inert gas shielding with carbon dust; 1.5~3h is incubated at 1000~1100 DEG C, then heats to 1300~1450 DEG C, and be incubated 1.5~3h; cooling, obtains soluble aluminum alloy powder.The present invention reduces the step of commercial synthesis aluminium alloy, make full use of raw mineral materials, synthesis cost is reduced, and regard industrial aluminium ore as raw material, it is alkaline that the part of compounds in industrial aluminium ore can make it that lysate is presented in dissolving, improve the uniformity of dissolving, part technical oxide can be used as enhancing phase, can moderately improve the compression strength of degradable acieral, and the present invention improves the utilization rate of aluminium ore, technique simplifies, and saves industrial production cost.
Description
Technical field
The invention belongs to metal material field, and in particular to a kind of method of carbothermic method synthesis of aluminium alloy powder.
Background technology
The advanced technology of world unconventionaloil pool field exploitation is multilayer multistage hydraulic fracturing technology, in the technology recovery process
A large amount of downhole tools can be used.High-strength soluble material can be used for manufacturing such downhole tool, can meet base in use
This application performance requirement, especially under complicated external condition, interior at work HTHP can be born, again can be in pressure break
Original place is dissolved after the completion of work, without being ground or the row of returning, is made oil-gas pipeline recovery unimpeded, is greatlyd save human and material resources and wealth
Power, greatly improve engineering progress speed.
At present, the most frequently used degradation material has organic polymer material and metal degradation material, due to organic polymer
The features such as mutability of thing, low intensity, high-temperature behavior difference, jam is easily caused during pressure break.Therefore can using metal
Degradable material is a kind of current optimal selection, and metal material degradable at present has aluminium alloy and magnesium alloy.Patent
201410819770.9 propose a kind of high-strength dissolvable aluminum alloy materials, and the material not only has higher intensity, Er Qie
Play after its effect without grinding or the row of returning, substantially increase the operating efficiency of oil-gas mining, the production involved by the patent
Method has powder metallurgy and casting.
The low-melting-point metal such as activating aluminum alloy such as gallium, indium, tin, zinc, lithium is used in patent CN104480354A, makes its surface
Passivating film be destroyed so that aluminium quickly dissolves in water.Powder metallurgy can improve the intensity and chemical uniformity of material,
So as to improve the performance of material and application performance.
And the selection of powder material needed for powder metallurgy is then the important step of powder metallurgy.Research shows, using not
The slag of refinement, by carbon thermal reduction means, can obtain different alloy powders, be greatly lowered and be produced into as raw material
This.
Patent 201410084910.2 prepares alfer using carbothermic method, and this method can be directly red from aluminium metallurgy
Alloy is synthesized in mud.By the use of high titanium richness niobium slag production niobium titanium alloy etc. as raw material in patent 201310449481.X, using carbon heat
Reducing process synthesizes titanium alloy, can improve the utilization rate of the raw material of industry.But these alloys can not dissolve in oilfield exploitation environment, no
It can apply in the pressure break in process for petroleum recovery, it is therefore necessary to provide a kind of soluble acieral.
The content of the invention
Present invention aims at the solubility property for improving existing dissolvable aluminum alloy materials, there is provided a kind of carbothermic method is closed
Into the method for aluminium alloy powder.
To achieve the above object, the present invention can be achieved through the following technical solutions：
A kind of method of carbothermic method synthesis of aluminium alloy powder, metal oxide is mixed with industrial aluminium ore, obtained
To mixed-powder, mixed-powder is mixed with carbon dust after under inert gas shielding, be incubated 1.5 at 1000~1100 DEG C~
3h, 1300~1450 DEG C are then heated to, and be incubated 1.5~3h, cooling, obtain soluble aluminum alloy powder.
Further improve of the invention is that industrial aluminium ore is made by the following method：Quality of alumina content is more than
45% industrial aluminum is mining to be carried out after pulverizer crushes being milled to particle diameter and is made less than 100 μm.
Further improve of the invention is that metal oxide is oxide A or oxide A and oxide B mixture；
Wherein, oxide A is the one or more in tin oxide, gallium oxide, indium oxide, zinc oxide；Oxide B is manganese oxide, oxidation
One or both of magnesium.
Further improve of the invention is, obtained when metal oxide is the mixture of manganese oxide and oxide A
In soluble aluminum alloy powder, the weight/mass percentage composition of manganese is 0.5~0.5%；
When metal oxide is the mixture of magnesia and oxide A, in obtained soluble aluminum alloy powder, magnesium
Weight/mass percentage composition is 1~5%；
When metal oxide is the mixture of manganese oxide, magnesia and oxide A, obtained soluble aluminum alloy powder
In, the weight/mass percentage composition of manganese is 0.5~0.5%, and the weight/mass percentage composition of magnesium is 1~5%；
When oxide A is tin oxide, indium oxide, gallium oxide, one or more in zinc oxide, when containing tin oxide
When, in obtained soluble aluminum alloy powder, the weight/mass percentage composition of tin is 2~4%；When containing indium oxide, it is obtained can
In dissolubility aluminium alloy powder, the weight/mass percentage composition of indium is 0.4~1%；When containing zinc oxide, obtained soluble aluminum alloy
In powder, the weight/mass percentage composition of zinc is 0.5~2%；When containing gallium oxide, in obtained soluble aluminum alloy powder, gallium
Weight/mass percentage composition be 1~3%.
Of the invention further improve be, with 3~5 DEG C/min programming rate from room temperature to 1000~1100
℃。
Of the invention further improve be, it is warming up to from 1000~1100 DEG C 1300 with 2~4 DEG C/min speed~
1450℃。
Further improve of the invention is that the mass ratio of mixed-powder and carbon dust is (5~8):1.
Further improve of the invention is that the particle diameter of metal oxide is less than 50 μm.
Further improve of the invention is that cooling is to cool to room temperature with the furnace, and carries out ball milling after being cooled to room temperature.
Compared with prior art, the device have the advantages that：The present invention by by industrial aluminium ore and particle diameter metal
Oxide is mixed, and obtains mixed-powder, mixed-powder is mixed with carbon dust after under inert gas shielding, to alumina ore
Carbonization and metal oxide carbonization obtain soluble aluminum alloy powder using heating stage by stage.Carbon heat provided by the present invention is also
Prepared by former method can dissolve aluminium alloy powder, the step of reducing commercial synthesis aluminium alloy, makes full use of raw mineral materials, reduces synthesis
Cost, and using industrial aluminium ore as raw material, the part of compounds in industrial aluminium ore can cause lysate that alkali is presented in dissolving
Property, the uniformity of dissolving is improved, part technical oxide, which can be used as, strengthens phase, can moderately improve the anti-of degradable acieral
Compressive Strength, the present invention improve the utilization rate of aluminium ore, and technique simplifies, and saves industrial production cost.
Further, metal oxide is oxide A or oxide A and oxide B mixture；Wherein, oxide A is
One or more in tin oxide, gallium oxide, indium oxide, zinc oxide；Oxide B is manganese oxide, one kind in magnesia or two
Kind.The alloying elements such as gallium, the indium of formed low melting point are reduced, and the presence of tin element and Zn-ef ficiency can cause aluminium alloy
Corrosion potential reduce so that alloy in aqueous solvent solubility property increase.
Further, when oxide A is zinc oxide, industrial aluminium ore uses the block of powder metallurgical technique preparation with zinc oxide
Body material, in the KCl solution of the mass concentration 3% at 90 DEG C, degradation rate can reach 4mm/day, and compression strength is reachable
450MPa, and uniformity of degrading is good, compared to using metal, as raw material, it is about 32% that can reduce cost.
Further, the present invention is using semi-processed mineral aggregates such as industrial aluminium ore, zinc oxide, indium oxides, with reference to carbon thermal reduction
The technique such as technology, combining powder metallurgy, a kind of high intensity can be synthesized, the degradable bulk material of aluminium base being uniformly dissolved.Directly adopt
With gallium, indium, zinc, tin etc., not only cost is high, and easily reunites due to generating low temperature eutectic in building-up process.Using this
The oxide of a little metals, with reference to carbon thermal reduction technology, cost can be not only reduced, and improve the performance of powder, so as to be powder
Last metallurgy etc. improves high-quality powder material.
Embodiment
Below by specific embodiment, the present invention is described in detail.
Metal oxide is oxide A or oxide A and oxide B mixture in the present invention；Wherein, oxide A is
One or more in tin oxide, gallium oxide, indium oxide, zinc oxide；Oxide B is manganese oxide, one kind in magnesia or two
Kind.
Specifically, when metal oxide is oxide A, when oxide A is tin oxide, obtained soluble aluminum alloy powder
In, the weight/mass percentage composition of tin is 2~4%；When oxide A is indium oxide, in obtained soluble aluminum alloy powder, the matter of indium
It is 0.4~1% to measure percentage composition；When oxide A is zinc oxide, in obtained soluble aluminum alloy powder, the quality percentage of zinc
Content is 0.5~2%；When oxide A is gallium oxide, in obtained soluble aluminum alloy powder, the weight/mass percentage composition of gallium is 1
~3%；
When metal oxide is the mixture of manganese oxide and oxide A, in obtained soluble aluminum alloy powder, manganese
Weight/mass percentage composition is 0.5~0.5%；
When metal oxide is the mixture of magnesia and oxide A, in obtained soluble aluminum alloy powder, magnesium
Weight/mass percentage composition is 1~5%；
When metal oxide is the mixture of manganese oxide, magnesia and oxide A, obtained soluble aluminum alloy powder
In, the weight/mass percentage composition of manganese is 0.5~0.5%, and the weight/mass percentage composition of magnesium is 1~5%；
When oxide A is tin oxide, indium oxide, gallium oxide, one or more in zinc oxide, when containing tin oxide
When, in obtained soluble aluminum alloy powder, the weight/mass percentage composition of tin is 2~4%；When containing indium oxide, it is obtained can
In dissolubility aluminium alloy powder, the weight/mass percentage composition of indium is 0.4~1%；When containing zinc oxide, obtained soluble aluminum alloy
In powder, the weight/mass percentage composition of zinc is 0.5~2%；When containing gallium oxide, in obtained soluble aluminum alloy powder, gallium
Weight/mass percentage composition be 1~3%.
When the mixture that metal oxide is manganese oxide and oxide A, and oxide A is tin oxide, gallium oxide, oxidation
During a kind of in indium, zinc oxide, now obtained is aluminium manganese tin, aluminium manganese gallium, aluminium manganese indium or aluminium MnZn ternary alloy three-partalloy.
When the mixture that metal oxide is manganese oxide and oxide A, and oxide A is tin oxide, gallium oxide, oxidation
It is now obtained for corresponding quaternary alloys such as aluminium manganese tin gallium, aluminium manganese tin indium, aluminium manganese tin zinc during two kinds in indium, zinc oxide.
When the mixture that metal oxide is manganese oxide and oxide A, and oxide A is tin oxide, gallium oxide, oxidation
During three kinds in indium, zinc oxide, now obtained is aluminium manganese tin gallium indium, indium manganese gallium indium zinc, indium manganese tin indium zinc or aluminium manganese tin gallium zinc
Quinary alloy.
When the mixture that metal oxide is manganese oxide and oxide A, and oxide A is tin oxide, gallium oxide, oxidation
During four kinds in indium, zinc oxide, now obtained is the hexa-atomic alloy of aluminium manganese tin gallium indium zinc.
When the mixture that metal oxide is magnesia and oxide A, oxide A be tin oxide, gallium oxide, indium oxide,
When one kind in zinc oxide, two kinds, three kinds or four kinds, corresponding ternary alloy three-partalloy, quaternary alloy, quinary alloy or hexa-atomic conjunction are obtained
Gold.
When metal oxide is the mixture of manganese oxide, magnesia and oxide A, oxide A is tin oxide, oxidation
When one kind in gallium, indium oxide, zinc oxide, two kinds, three kinds or four kinds, corresponding quaternary alloy, quinary alloy, hexa-atomic conjunction are obtained
Gold or seven yuan of alloys.
As can be seen here, in the present invention manganese oxide, magnesia can not be separately added in industrial aluminium ore, it is necessary to oxide A
In one or more be added to together in industrial aluminium ore.
High-strength dissolvable aluminum alloy materials powder produced by the present invention, is made up of, matrix matrix phase and second phase two parts
Mutually mainly it is made up of the alloy powder of the element solid solutions such as Al and Mg, Ga, Sn, Mn, In, Zn.
Embodiment 1
Carbothermic method synthesis of aluminium alloy powder processing step proposed by the invention is：
(1) aluminium ore crushes：By industrial aluminium ore (aluminum oxide>45%wt) crushed with pulverizer, and carry out being milled to average grain
Footpath is less than 100 μm.
(2) the industrial aluminium ore after zinc oxide and ball milling of the particle diameter less than 50 μm is well mixed, obtains mixed-powder.
(3) mixed-powder that step (2) is prepared is mixed with carbon dust, then reacted under argon gas protection,
With 3 DEG C/min programming rate from room temperature to 1100 DEG C, and 1.5h is incubated, react fully generation carbide or oxidation of coal
Thing, 1450 DEG C then are continuously heating to from 1100 DEG C with 2 DEG C/min speed, and are incubated 1.5h, cool to room temperature with the furnace afterwards；
Wherein, the mass ratio of mixed-powder and carbon dust is 5:1；
(4) the reaction synthetic product ball milling for obtaining step (3), and remove impurity therein, you can obtain Al alloy powder
Body, the aluminium alloy powder are that aluminium zinc can dissolve alloy powder.The mass content of zinc is 0.5% in the powder.
Aluminium alloy powder made from embodiment 1 is prepared into block materials using powder metallurgical technique, the matter at 90 DEG C
In the KCl solution for measuring concentration 3%, degradation rate can reach 4mm/day, compression strength up to 450MPa, and degrade uniformity compared with
It is good, compared to using metal, as raw material, it is about 32% that can reduce cost.
Embodiment 2
(1) aluminium ore crushes：By industrial aluminium ore (aluminum oxide>45%wt) crushed with pulverizer, and carry out being milled to average grain
Footpath is less than 100 μm.
(2) the industrial aluminium ore after metal oxide and ball milling of the particle diameter less than 50 μm is well mixed, obtains mixed-powder,
Wherein, metal oxide is tin oxide.
(3) mixed-powder that step (2) is prepared is mixed with carbon dust, then reacted under argon gas protection,
With 4 DEG C/min programming rate from room temperature to 1030 DEG C, and 2.5h is incubated, react fully generation carbide or oxidation of coal
Thing, 1300 DEG C then are continuously heating to 3 DEG C/min speed, and are incubated 3h, cool to room temperature with the furnace afterwards；Wherein, mix
The mass ratio of powder and carbon dust is 5:1；
(4) the reaction synthetic product ball milling for obtaining step (3), and remove impurity therein, you can obtain Al alloy powder
Body.The mass content of tin is 4% in the powder.
Obtained aluminium alloy powder is prepared into block materials using powder metallurgical technique, the mass concentration 3% at 90 DEG C
KCl solution in, degradation rate can reach 2.4mm/day, and compression strength is up to 410MPa, and uniformity of degrading is preferable, compares
Using metal as raw material, it is about 34% that can reduce cost.
Embodiment 3
(1) aluminium ore crushes：By industrial aluminium ore (aluminum oxide>45%wt) crushed with pulverizer, and carry out being milled to average grain
Footpath is less than 100 μm.
(2) the industrial aluminium ore after metal oxide and ball milling of the particle diameter less than 50 μm is well mixed, obtains mixed-powder,
Wherein, metal oxide is the mixture of gallium oxide and tin oxide.
(3) mixed-powder that step (2) is prepared is mixed with carbon dust, then reacted under argon gas protection,
With 5 DEG C/min programming rate from room temperature to 1000 DEG C, and 3h is incubated, react fully generation carbide or oxidation of coal
Thing, 1400 DEG C then are continuously heating to 4 DEG C/min speed, and are incubated 2h, cool to room temperature with the furnace afterwards；Wherein, mix
The mass ratio of powder and carbon dust is 5:1；
(4) the reaction synthetic product ball milling for obtaining step (3), and remove impurity therein, you can obtain Al alloy powder
Body.The mass content of gallium is 1% in the powder, and the mass content of tin is 2%.
Obtained aluminium alloy powder is prepared into block materials using powder metallurgical technique, the mass concentration 3% at 90 DEG C
KCl solution in, degradation rate can reach 0.6mm/day, and compression strength is up to 425MPa.
Embodiment 4
(1) aluminium ore crushes：By industrial aluminium ore (aluminum oxide>45%wt) crushed with pulverizer, and carry out being milled to average grain
Footpath is less than 100 μm.
(2) the industrial aluminium ore after metal oxide and ball milling of the particle diameter less than 50 μm is well mixed, obtains mixed-powder,
Wherein, metal oxide is the mixture of manganese oxide, tin oxide, indium oxide and gallium oxide.
(3) mixed-powder that step (2) is prepared is mixed with carbon dust, then reacted under argon gas protection,
With 3 DEG C/min programming rate from room temperature to 1050 DEG C, and 2h is incubated, react fully generation carbide or oxidation of coal
Thing, 1350 DEG C then are warming up to 2 DEG C/min speed, and are incubated 2.5h, cool to room temperature with the furnace afterwards；Wherein, mixed powder
The mass ratio of end and carbon dust is 5:1；
(4) the reaction synthetic product ball milling for obtaining step (3), and remove impurity therein, you can obtain Al alloy powder
Body, the mass content of manganese is 0.2% in the powder, and the mass content of tin is 3%, and the mass content of indium is 1%, and the quality of gallium contains
Measure as 3%.
Obtained aluminium alloy powder is prepared into block materials using powder metallurgical technique, the mass concentration 3% at 90 DEG C
KCl solution in, degradation rate can reach 8.2mm/day, and compression strength is up to 320MPa, and uniformity of degrading is good, compared to adopting
By the use of metal as raw material, it is about 41% that can reduce cost.
Embodiment 5
(1) aluminium ore crushes：By industrial aluminium ore (aluminum oxide>45%wt) crushed with pulverizer, and carry out being milled to average grain
Footpath is less than 100 μm.
(2) the industrial aluminium ore after metal oxide and ball milling of the particle diameter less than 50 μm is well mixed, obtains mixed-powder,
Wherein, metal oxide is the mixture of indium oxide and zinc oxide.
(3) mixed-powder that step (2) is prepared is mixed with carbon dust, then reacted under argon gas protection,
With 5 DEG C/min programming rate from room temperature to 1080 DEG C, and 1.5h is incubated, react fully generation carbide or oxidation of coal
Thing, 1420 DEG C then are continuously heating to 3 DEG C/min speed, and are incubated 2h, cool to room temperature with the furnace afterwards；Wherein, mix
The mass ratio of powder and carbon dust is 5:1；
(4) the reaction synthetic product ball milling for obtaining step (3), and remove impurity therein, you can obtain Al alloy powder
Body.The mass content of indium is 0.4% in gained powder, and the mass content of zinc is 1%.
Obtained aluminium alloy powder is prepared into block materials using powder metallurgical technique, the mass concentration 3% at 90 DEG C
KCl solution in, degradation rate can reach 5.4mm/day, and compression strength is up to 410MPa, and uniformity of degrading is good, compared to adopting
By the use of metal as raw material, it is about 34% that can reduce cost.
Embodiment 6
(1) aluminium ore crushes：By industrial aluminium ore (aluminum oxide>45%wt) crushed with pulverizer, and carry out being milled to average grain
Footpath is less than 100 μm.
(2) the industrial aluminium ore after metal oxide and ball milling of the particle diameter less than 50 μm is well mixed, obtains mixed-powder,
Wherein, metal oxide is the mixture of magnesia, zinc oxide, tin oxide, manganese oxide, gallium oxide and indium oxide.
(3) mixed-powder that step (2) is prepared is mixed with carbon dust, then reacted under argon gas protection,
With 3 DEG C/min programming rate from room temperature to 1100 DEG C, and 1.5h is incubated, react fully generation carbide or oxidation of coal
Thing, 1450 DEG C then are continuously heating to 2 DEG C/min speed, and are incubated 1.5h, cool to room temperature with the furnace afterwards；Wherein, mix
The mass ratio for closing powder and carbon dust is 5:1；
(4) the reaction synthetic product ball milling for obtaining step (3), and remove impurity therein, you can obtain Al alloy powder
Body.The mass content of magnesium is 1% in the powder, and the mass content of zinc is 2%, and the mass content of tin is 2.5%, and the quality of manganese contains
Measure as 0.5%, the mass content of gallium is 2%, and the mass content of indium is 0.7%.
Aluminium alloy powder is prepared into block materials using powder metallurgical technique made from the embodiment, the quality at 90 DEG C
In the KCl solution of concentration 3%, degradation rate can reach 6.8mm/day, and compression strength is up to 378MPa.And degraded uniformity is good,
Compared to using metal, as raw material, it is about 38% that can reduce cost.
Embodiment 7
(1) aluminium ore crushes：By industrial aluminium ore (aluminum oxide>45%wt) crushed with pulverizer, and carry out being milled to average grain
Footpath is less than 100 μm.
(2) the industrial aluminium ore after metal oxide and ball milling of the particle diameter less than 50 μm is well mixed, obtains mixed-powder,
Wherein, metal oxide is the mixture of manganese oxide, magnesia, indium oxide and gallium oxide.
(3) mixed-powder that step (2) is prepared is mixed with carbon dust, then reacted under argon gas protection,
With 3 DEG C/min programming rate from room temperature to 1050 DEG C, and 2h is incubated, react fully generation carbide or oxidation of coal
Thing, 1350 DEG C then are warming up to 2 DEG C/min speed, and are incubated 2.5h, cool to room temperature with the furnace afterwards；Wherein, mixed powder
The mass ratio of end and carbon dust is 5:1；
(4) the reaction synthetic product ball milling for obtaining step (3), and remove impurity therein, you can obtain Al alloy powder
Body, the mass content of manganese is 0.3% in the powder, and the mass content of magnesium is 5%, and the mass content of indium is 0.8%, the quality of gallium
Content is 1.5%.
Obtained aluminium alloy powder is prepared into block materials using powder metallurgical technique, the mass concentration 3% at 90 DEG C
KCl solution in, degradation rate can reach 5.4mm/day, and compression strength is up to 394MPa, and uniformity of degrading is good, compared to adopting
By the use of metal as raw material, it is about 36% that can reduce cost.
Embodiment 8
(1) aluminium ore crushes：By industrial aluminium ore (aluminum oxide>45%wt) crushed with pulverizer, and carry out being milled to average grain
Footpath is less than 100 μm.
(2) the industrial aluminium ore after metal oxide and ball milling of the particle diameter less than 50 μm is well mixed, obtains mixed-powder,
Wherein, metal oxide is the mixture of magnesia and zinc oxide.
(3) mixed-powder that step (2) is prepared is mixed with carbon dust, then reacted under argon gas protection,
With 3 DEG C/min programming rate from room temperature to 1050 DEG C, and 2h is incubated, react fully generation carbide or oxidation of coal
Thing, 1350 DEG C then are warming up to 2 DEG C/min speed, and are incubated 2.5h, cool to room temperature with the furnace afterwards；Wherein, mixed powder
The mass ratio of end and carbon dust is 5:1；
(4) the reaction synthetic product ball milling for obtaining step (3), and remove impurity therein, you can obtain Al alloy powder
Body, the mass content of magnesium is 3% in the powder, and the mass content of zinc is 1.5%.
Obtained aluminium alloy powder is prepared into block materials using powder metallurgical technique, the mass concentration 3% at 90 DEG C
KCl solution in, degradation rate can reach 1.8mm/day, and compression strength is up to 470MPa, and uniformity of degrading is preferable, compares
Using metal as raw material, it is about 22% that can reduce cost.
Embodiment 9
(1) aluminium ore crushes：By industrial aluminium ore (aluminum oxide>45%wt) crushed with pulverizer, and carry out being milled to average grain
Footpath is less than 100 μm.
(2) the industrial aluminium ore after metal oxide and ball milling of the particle diameter less than 50 μm is well mixed, obtains mixed-powder,
Wherein, metal oxide is the mixture of manganese oxide, magnesia and gallium oxide.
(3) mixed-powder that step (2) is prepared is mixed with carbon dust, then reacted under argon gas protection,
With 3 DEG C/min programming rate from room temperature to 1050 DEG C, and 2h is incubated, react fully generation carbide or oxidation of coal
Thing, 1350 DEG C then are warming up to 2 DEG C/min speed, and are incubated 2.5h, cool to room temperature with the furnace afterwards；Wherein, mixed powder
The mass ratio of end and carbon dust is 5:1；
(4) the reaction synthetic product ball milling for obtaining step (3), and remove impurity therein, you can obtain Al alloy powder
Body, the mass content of manganese is 0.4% in the powder, and the mass content of magnesium is 4%, and the mass content of gallium is 2.5%.
Obtained aluminium alloy powder is prepared into block materials using powder metallurgical technique, the mass concentration 3% at 90 DEG C
KCl solution in, degradation rate can reach 3.6mm/day, and compression strength is up to 396MPa, and uniformity of degrading is preferable, compares
Using metal as raw material, it is about 37% that can reduce cost.
Embodiment 10
(1) aluminium ore crushes：By industrial aluminium ore (aluminum oxide>45%wt) crushed with pulverizer, and carry out being milled to average grain
Footpath is less than 100 μm.
(2) the industrial aluminium ore after metal oxide and ball milling of the particle diameter less than 50 μm is well mixed, obtains mixed-powder,
Wherein, metal oxide is the mixture of tin oxide, gallium oxide, indium oxide, zinc oxide and manganese oxide.
(3) mixed-powder that step (2) is prepared is mixed with carbon dust, then reacted under argon gas protection,
With 3 DEG C/min programming rate from room temperature to 1050 DEG C, and 2h is incubated, react fully generation carbide or oxidation of coal
Thing, 1350 DEG C then are warming up to 2 DEG C/min speed, and are incubated 2.5h, cool to room temperature with the furnace afterwards；Wherein, mixed powder
The mass ratio of end and carbon dust is 5:1；
(4) the reaction synthetic product ball milling for obtaining step (3), and remove impurity therein, you can obtain Al alloy powder
Body, the mass content of tin is 0.5% in the powder, and the mass content of gallium is 3.5%, and the mass content of indium is 0.5%, the matter of zinc
Measure as 0.8%, the mass content of manganese is 1%.
Obtained aluminium alloy powder is prepared into block materials using powder metallurgical technique, the mass concentration 3% at 90 DEG C
KCl solution in, degradation rate can reach 6.6mm/day, and compression strength is up to 348MPa, and uniformity of degrading is good, compared to adopting
By the use of metal as raw material, it is about 39% that can reduce cost.
Claims (9)
- A kind of 1. method of carbothermic method synthesis of aluminium alloy powder, it is characterised in that enter metal oxide and industrial aluminium ore Row mixing, obtains mixed-powder, mixed-powder is mixed after under inert gas shielding with carbon dust, protected at 1000~1100 DEG C 1.5~3h of temperature, 1300~1450 DEG C are then heated to, and be incubated 1.5~3h, cooling, obtain soluble aluminum alloy powder.
- A kind of 2. method of carbothermic method synthesis of aluminium alloy powder according to claim 1, it is characterised in that industrial aluminum Ore deposit is made by the following method：It is milled to after quality of alumina content is crushed more than the mining pulverizer of 45% industrial aluminum Particle diameter is less than 100 μm and is made.
- A kind of 3. method of carbothermic method synthesis of aluminium alloy powder according to claim 1, it is characterised in that metal oxygen Compound is oxide A or oxide A and oxide B mixture；Wherein, oxide A is tin oxide, gallium oxide, indium oxide, oxygen Change the one or more in zinc；Oxide B is one or both of manganese oxide, magnesia.
- A kind of 4. method of carbothermic method synthesis of aluminium alloy powder according to claim 3, it is characterised in thatWhen metal oxide is the mixture of manganese oxide and oxide A, in obtained soluble aluminum alloy powder, the quality of manganese Percentage composition is 0.5~0.5%；When metal oxide is the mixture of magnesia and oxide A, in obtained soluble aluminum alloy powder, the quality of magnesium Percentage composition is 1~5%；When metal oxide is the mixture of manganese oxide, magnesia and oxide A, in obtained soluble aluminum alloy powder, The weight/mass percentage composition of manganese is 0.5~0.5%, and the weight/mass percentage composition of magnesium is 1~5%；When oxide A is the one or more in tin oxide, indium oxide, gallium oxide, zinc oxide, when containing tin oxide, system In the soluble aluminum alloy powder obtained, the weight/mass percentage composition of tin is 2~4%；When containing indium oxide, obtained soluble aluminum In alloy powder, the weight/mass percentage composition of indium is 0.4~1%；When containing zinc oxide, obtained soluble aluminum alloy powder In, the weight/mass percentage composition of zinc is 0.5~2%；When containing gallium oxide, in obtained soluble aluminum alloy powder, the matter of gallium It is 1~3% to measure percentage composition.
- 5. the method for a kind of carbothermic method synthesis of aluminium alloy powder according to claim 1, it is characterised in that with 3~5 DEG C/min programming rate is from room temperature to 1000~1100 DEG C.
- 6. the method for a kind of carbothermic method synthesis of aluminium alloy powder according to claim 1, it is characterised in that with 2~4 DEG C/min speed is warming up to 1300~1450 DEG C from 1000~1100 DEG C.
- A kind of 7. method of carbothermic method synthesis of aluminium alloy powder according to claim 1, it is characterised in that mixed powder End and the mass ratio of carbon dust are (5~8):1.
- A kind of 8. method of carbothermic method synthesis of aluminium alloy powder according to claim 1, it is characterised in that metal oxygen The particle diameter of compound is less than 50 μm.
- 9. the method for a kind of carbothermic method synthesis of aluminium alloy powder according to claim 1, it is characterised in that cooling is Cool to room temperature with the furnace, and ball milling is carried out after being cooled to room temperature.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005307327A (en) * | 2004-04-26 | 2005-11-04 | Daruko:Kk | Method for treating particulate aluminum oxide |
| CN101560619A (en) * | 2008-03-04 | 2009-10-21 | 普拉德研究及开发股份有限公司 | Methods of manufacturing degradable alloys and products made from degradable alloys |
| CN102002715A (en) * | 2010-10-12 | 2011-04-06 | 青岛双瑞防腐防污工程有限公司 | High-performance aluminium alloy sacrificial anode |
| CN102418010A (en) * | 2011-12-15 | 2012-04-18 | 贵州华科铝材料工程技术研究有限公司 | Cast aluminum alloy with pinholes removed and smelting method thereof |
| CN104480354A (en) * | 2014-12-25 | 2015-04-01 | 陕西科技大学 | Preparation method of high-strength dissolublealuminum alloy material |
| CN106636720A (en) * | 2017-01-06 | 2017-05-10 | 陕西科技大学 | Process for preparing SiC enhanced soluble aluminum alloy material through two-step method |
-
2017
- 2017-08-21 CN CN201710720059.1A patent/CN107671304B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005307327A (en) * | 2004-04-26 | 2005-11-04 | Daruko:Kk | Method for treating particulate aluminum oxide |
| CN101560619A (en) * | 2008-03-04 | 2009-10-21 | 普拉德研究及开发股份有限公司 | Methods of manufacturing degradable alloys and products made from degradable alloys |
| CN102002715A (en) * | 2010-10-12 | 2011-04-06 | 青岛双瑞防腐防污工程有限公司 | High-performance aluminium alloy sacrificial anode |
| CN102418010A (en) * | 2011-12-15 | 2012-04-18 | 贵州华科铝材料工程技术研究有限公司 | Cast aluminum alloy with pinholes removed and smelting method thereof |
| CN104480354A (en) * | 2014-12-25 | 2015-04-01 | 陕西科技大学 | Preparation method of high-strength dissolublealuminum alloy material |
| CN106636720A (en) * | 2017-01-06 | 2017-05-10 | 陕西科技大学 | Process for preparing SiC enhanced soluble aluminum alloy material through two-step method |
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