CN107760905A - A kind of ZrB2The preparation method of particle reinforced aluminum foam/aluminium alloy - Google Patents
A kind of ZrB2The preparation method of particle reinforced aluminum foam/aluminium alloy Download PDFInfo
- Publication number
- CN107760905A CN107760905A CN201710992264.3A CN201710992264A CN107760905A CN 107760905 A CN107760905 A CN 107760905A CN 201710992264 A CN201710992264 A CN 201710992264A CN 107760905 A CN107760905 A CN 107760905A
- Authority
- CN
- China
- Prior art keywords
- aluminium alloy
- aluminium
- zrb
- melt
- particle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- C22C1/08—Alloys with open or closed pores
-
- 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
-
- 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
- C22C1/08—Alloys with open or closed pores
- C22C1/083—Foaming process in molten metal other than by powder metallurgy
- C22C1/086—Gas foaming process
-
- 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
Abstract
The present invention relates to a kind of ZrB2Particle reinforced aluminum foam/aluminium alloy preparation method, belongs to porous material technical field.By aluminium/aluminium alloy heating and melting, calcium metal thickening is added, potassium fluoborate is then added and potassium fluorozirconate carries out reaction in-situ generation ZrB2Particle, it is eventually adding TiH2Foamed, ZrB is produced after melt foam cooled and solidified2Particle reinforced aluminum foam/aluminium alloy.ZrB therein2Particle has the double action for making aluminium/aluminium alloy melt thickening and particle enhancing simultaneously, has foamed aluminum/aluminum alloy intensity high, and pore structure is controllable, and industrial production can be achieved.
Description
Technical field
The present invention relates to a kind of ZrB2The preparation method of particle reinforced aluminum foam/aluminium alloy, belong to porous material technology neck
Domain.
Background technology
Aluminium/aluminum alloy foam has low-density, Gao Biqiang, energy absorption, sound-absorption vibration-reduction, electromagnetic shielding, lower thermal conductivity etc.
Feature, there is wide application market in fields such as structural material, noise control, building decoration, heat-insulation and heat-preservations.
At present foamed aluminum/aluminum alloy preparation method be mainly foam melt method, powder metallurgy foaming method, infiltration casting and
Blowing gas foaming.
Foam melt method is from melt approach, by being dispersed with stirring in aluminium/aluminium alloy melt of Ca thickeninies (1-3%)
Foaming agent TiH2, then carry out foaming processing.Powder metallurgy foaming method is from powder approach, by foaming agent TiH2Closed with aluminium/aluminium
After the mixing of bronze end, compacting, it is heated to the temperature more than liquidus curve of metal and is foamed.Blowing gas method goes out from melt approach
Hair, into aluminium/aluminium alloy melt of SiC (10-20%vol) thickeninies, blowing gas makes foaming and obtains foamed aluminum/aluminum alloy.Ooze
It is the filler anticipated to be put into metal mold prefabricated section is made to flow casting, then prefabricated section is preheating into a constant temperature
Degree, alloy or molten metal are then poured into, and pressurizeing makes molten metal penetrate into prefabricated section, and a three dimensional network is formed after cooled and solidified
The complex of shape interconnection, is finally machined out to complex, required shape is made, then removes filler grain, so as to
To final required foam metal.
The intensity of foamed aluminum/aluminum alloy depends on pore structure and the intensity of matrix material, in pore structure under the same conditions,
The intensity of foamed aluminum/aluminum alloy and matrix strength are closely related.In the preparation method of above-mentioned three kinds of foamed aluminum/aluminum alloys, melt
Thickening contained by frothing foam aluminium/aluminium alloy it is mutually less (<3%) it is, little to foamed aluminium intensity contribution；Powder metallurgy foaming foam
The thickening of aluminium it is mutually less (<1%), foamed aluminium intensity is not almost contributed；In blowing gas foamed aluminium, although containing 10-
20%vol additional thickening phase SiC, but due to the wetability of pore structure lack of homogeneity and SiC and aluminium/aluminium alloy melt is poor,
Skewness, it is difficult to ensure that the raising of foamed aluminum/aluminum alloy fragility, intensity.Infiltration casting is prepared to mould requires higher,
Mold making process is complicated, it is impossible to reuses, cost is higher.
The content of the invention
The present invention is not high to overcome the shortcomings of foamed aluminium intensity prepared by above-mentioned known foamed aluminum/aluminum alloy technology of preparing,
A kind of ZrB is provided2The preparation method of particle reinforced aluminum foam/aluminium alloy, ZrB is generated using in aluminium/aluminium alloy melt situ2
Particle, then add foaming agent TiH2The method to be foamed prepares the ZrB that intensity is high, pore structure is controllable2Particle strengthens foam
Aluminium/aluminium alloy, the technique is simple, and industrialized production can be achieved.
The technical scheme is that：By aluminium/aluminium alloy heating fusing, then add potassium fluoborate and potassium fluorozirconate carries out original position
Generate ZrB2Particle, it is eventually adding TiH2Foamed, ZrB is produced after melt foam cooled and solidified2Particle reinforced aluminum foam/aluminium
Alloy.Specific steps include as follows：
(1) prepared by aluminium/aluminium alloy melt：The metal Ca that melt quality 2% is added after aluminium/aluminium alloy heating melting is stirred, so
Insulation obtains aluminium/aluminium alloy melt afterwards.
(2) preparation of reaction raw materials：According to the mol ratio 2 of potassium fluoborate and potassium fluorozirconate:1 proportion ingredient is simultaneously well mixed,
Finally be preheated to 300~500 DEG C it is stand-by；
(3) preparation of compounding flux：The reaction raw materials of aluminium alloy melt quality 5~20% are added in aluminium alloy melt, it is former
Position reaction obtains in-situ endogenic ZrB in 20~30 minutes2Particle, acquisition include ZrB2The aluminium alloy compound melt of particle；Generated
ZrB2The quality of particle is the 1~5% of aluminium/aluminium alloy melt quality, 0.5~1 μm of granularity；
(4) preparation of foaming agent：By the foaming agent TiH of aluminium/aluminium alloy quality percentage composition 1~3%2Powder carries out aoxidizing pre- place
Reason.Then TiH is pressed2Powder and aluminium powder mass ratio 1:2 proportioning carries out batch mixing.
(5) foaming of compounding flux：ZrB will be included2The aluminium alloy compound melt temperature of particle is down to more than aluminium alloy fusing point 30
~50 DEG C of temperature is simultaneously incubated 20~40 minutes, and then foaming agent is added in compounding flux, then with 500~2000 turns/
The speed divided stirs 30 seconds, TiH in melt2Decomposition makes compounding flux foam again 30~120 seconds, obtains compounding flux foam；
(6) compounding flux foam cools down：Compounding flux foam is cooled to room temperature, obtains ZrB2Particle reinforced aluminum foam/aluminium closes
Gold, porosity are 70~85%, 2~5 μm of average pore size.
The preparation of step (1) aluminium/aluminium alloy melt is that aluminium/aluminium alloy is heated into 850~950 DEG C to melt and add
Ca is simultaneously stirred 10~20 minutes, is incubated 20~30 minutes.
Potassium fluoborate mixes with potassium fluorozirconate in the step (2) is mixed 1~2 hour using ball mill.
Step (4) mode of oxidizing be 400 DEG C oxidation 24 hours after again 500 DEG C aoxidize 1 hour.
Batch mixing uses ball mill batch mixing 2 hours in the step (4).
The cooling of compounding flux foam is with air-cooled in the step (6).
The present invention principle be：
1、ZrB2Reaction in-situ principle：
3K2ZrF6+6KBF4+ 10Al=3KBF4+9KAlF4+K3AlF6 (1)
3K2ZrF6+ 13Al=3KAlF4+K3AlF6+3KAlF4 (2)
AlB2+ZrAl3=ZrB2+4Al (3)
(1), (2), (3) formula are reaction in-situ formula, and potassium fluoborate, potassium fluorozirconate and in-situ preparation are can obtain by (1), (2), (3)
ZrB2Stoichiometric molar be：K2ZrF6:KBF4:KBF4=1:2:1, the present invention carries out dispensing by this proportioning and is calculated
ZrB2Quality.It can be calculated, often generate 1 gram of ZrB2Required reaction raw material is 5 grams, and required aluminium/aluminium alloy is about 3 grams
(while considering oxidation and melting loss).
2nd, compounding flux foam theory：Conventional melt foaming prepares foamed aluminium, it is necessary to carry out tackified finish to melt, most often
Method be in aluminium/aluminium alloy melt addition 1~3% Ca and stir improve 5~20 minutes the viscosity of aluminium/aluminium alloy
10~20%.In the present invention, Ca and generation ZrB are added in aluminium/aluminium alloy melt by reaction in-situ2Particle increases melt
It is viscous.
The advantages and positive effects of the present invention：Using in aluminium/aluminium alloy melt situ generation ZrB2Particle, then add again
Enter foaming agent TiH2The method to be foamed prepares ZrB2Particle reinforced aluminum foam/aluminium alloy, ZrB therein2Particle has simultaneously
Make the double action of aluminium/aluminium alloy melt thickening and enhancing, with foamed aluminum/aluminum alloy intensity is high, pore structure is controllable, prepares work
The characteristics of skill is simple, industrialized production can be achieved.
Brief description of the drawings
Fig. 1 is the process chart of the present invention.
Fig. 2 is foamed aluminium exterior view.
Embodiment
Embodiment one：As shown in figure 1, the ZrB of present embodiment2The preparation method of particle reinforced aluminum foam/aluminium alloy
For：
(1) prepared by aluminium/aluminium alloy melt：A356 is used as raw material, 500 grams of A356 are heated to 850 DEG C of fusings, add 10g gold
Belong to Ca to stir 10 minutes, be then incubated 20 minutes, obtain industrial A356 melts；
(2) preparation of reaction raw materials：Potassium fluoborate and potassium fluorozirconate are used as raw material, according to rubbing for potassium fluoborate and potassium fluorozirconate
You are than being 2:1 proportioning carries out dispensing, is mixed 1 hour in batch mixer after dispensing, reaction raw materials be preheating to 500 DEG C it is stand-by；
(3) preparation of composite foamable agent：By the foaming agent TiH of aluminium/aluminium alloy quality percentage composition 2%2Powder aoxidize pre-
Processing.Then TiH is pressed2Powder and aluminium powder mass ratio 1:2 proportioning carries out batch mixing.
(4) preparation of compounding flux：71 grams of reaction raw materials that step (2) obtains are added into step (1) with the method for bell jar to obtain
In the A356 aluminum melts obtained, reaction raw materials carry out the chemical reaction in-situ preparation ZrB of 30 minutes in the melt2Particle, generated
ZrB2The quality of particle is the 3% of industrial A356 mass, granularity is 0.5~1 μm, obtains including ZrB2The industrial aluminum of particle is compound
Melt；
(5) foaming of compounding flux：The compounding flux temperature that step (4) obtains is reduced to 690 DEG C and is incubated 20 minutes, then will
The composite foamable agent that step (3) obtains is added in compounding flux, and is stirred 30 seconds with 500 revs/min of speed, proposes stirring
Device, TiH in melt2Decomposition makes compounding flux foam 30 seconds, obtains compounding flux foam；
(6) compounding flux foam cools down：Obtained compounding flux foam in step (5) is cooled to room temperature with air-cooled method,
Obtain as shown in Fig. 2 porosity 75%, average pore size 2mm ZrB2The A356 aluminum foams of particle.
Claims (5)
- A kind of 1. ZrB2The preparation method of particle reinforced aluminum foam/aluminium alloy, by aluminium/aluminium alloy heating fusing, then add fluorine boron Sour potassium and potassium fluorozirconate carry out in-situ preparation ZrB2Particle, it is eventually adding TiH2Foamed, produced after melt foam cooled and solidified ZrB2Particle reinforced aluminum foam/aluminium alloy, it is characterised in that comprise the following steps that：(1) prepared by aluminium/aluminium alloy melt：Metal Ca stirrings will be added after the heating melting of aluminium/aluminium alloy, then insulation obtain aluminium/ Aluminium alloy melt；(2) preparation of reaction raw materials：According to the mol ratio 2 of potassium fluoborate and potassium fluorozirconate:1 proportion ingredient is simultaneously well mixed, Finally be preheated to 300~500 DEG C it is stand-by；(3) preparation of compounding flux：The reaction raw materials of aluminium alloy melt quality 5~20% are added in aluminium alloy melt, it is former Position reaction obtains in-situ endogenic ZrB in 20~30 minutes2Particle, acquisition include ZrB2The aluminium alloy compound melt of particle；Generated ZrB2The quality of particle is the 1~5% of aluminium/aluminium alloy melt quality, 0.5~1 μm of granularity；(4) preparation of foaming agent：By the foaming agent TiH of aluminium/aluminium alloy quality percentage composition 1~3%2Powder carries out aoxidizing pre- place Reason, then by TiH2Powder and aluminium powder mass ratio 1:2 proportioning carries out batch mixing；(5) foaming of compounding flux：ZrB will be included2The aluminium alloy compound melt temperature of particle is down to more than aluminium alloy fusing point 30~ 50 DEG C of temperature is simultaneously incubated 20~40 minutes, then foaming agent is added in compounding flux, then with 500~2000 revs/min Speed stir 30 seconds, TiH in melt2Decomposition makes compounding flux foam again 30~120 seconds, obtains compounding flux foam；(6) compounding flux foam cools down：Compounding flux foam is cooled to room temperature, obtains ZrB2Particle reinforced aluminum foam/aluminium closes Gold, porosity are 70~85%, 2~5 μm of average pore size.
- A kind of 2. ZrB as claimed in claim 12The preparation method of particle reinforced aluminum foam/aluminium alloy, it is characterised in that described The preparation of step (1) aluminium/aluminium alloy melt be by aluminium/aluminium alloy be heated to 850~950 DEG C melt and add Ca and stir 10~ 20 minutes, it is incubated 20~30 minutes；The metal Ca additions are the 2% of melt quality.
- A kind of 3. ZrB as claimed in claim 12The preparation method of particle reinforced aluminum foam/aluminium alloy, it is characterised in that described Potassium fluoborate mixes with potassium fluorozirconate in step (2) is mixed 1~2 hour using ball mill.
- A kind of 4. ZrB as claimed in claim 12The preparation method of particle reinforced aluminum foam/aluminium alloy, it is characterised in that described Step (4) mode of oxidizing be 400 DEG C oxidation 24 hours after again 500 DEG C aoxidize 1 hour；Batch mixing uses ball milling in the step (4) Machine batch mixing 2 hours.
- A kind of 5. ZrB as claimed in claim 12The preparation method of particle reinforced aluminum foam/aluminium alloy, it is characterised in that described The cooling of compounding flux foam is with air-cooled in step (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710992264.3A CN107760905A (en) | 2017-10-23 | 2017-10-23 | A kind of ZrB2The preparation method of particle reinforced aluminum foam/aluminium alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710992264.3A CN107760905A (en) | 2017-10-23 | 2017-10-23 | A kind of ZrB2The preparation method of particle reinforced aluminum foam/aluminium alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107760905A true CN107760905A (en) | 2018-03-06 |
Family
ID=61269798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710992264.3A Pending CN107760905A (en) | 2017-10-23 | 2017-10-23 | A kind of ZrB2The preparation method of particle reinforced aluminum foam/aluminium alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107760905A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109802340A (en) * | 2019-01-02 | 2019-05-24 | 安徽坤和电气有限公司 | A kind of high vapor-permeable type cable testing bridge |
| CN109207880B (en) * | 2018-10-22 | 2019-11-22 | 内蒙古农业大学 | A kind of foamed aluminium material and preparation method thereof of high intensity |
| CN112342423A (en) * | 2020-09-15 | 2021-02-09 | 安徽省新方尊自动化科技有限公司 | Processing method of foamed aluminum gun stock |
| CN114669743A (en) * | 2022-03-18 | 2022-06-28 | 辽宁石油化工大学 | Boron carbide reinforced foamed aluminum composite material and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1227206A (en) * | 1998-12-25 | 1999-09-01 | 北京航空材料研究院 | Foamed silicon carbide particle reinforced aluminium base composite material and its producing technology |
| CN101139666A (en) * | 2007-10-26 | 2008-03-12 | 上海大学 | Method for preparing SiC particle reinforced foamed aluminium radical composite material |
| CN101182608A (en) * | 2007-12-12 | 2008-05-21 | 昆明理工大学 | Preparation method of small pore diameter foamed aluminium |
| CN104263988A (en) * | 2014-05-04 | 2015-01-07 | 昆明理工大学 | Preparing method of TiB2 particle reinforced foamed aluminium/aluminium alloy |
| CN106399737A (en) * | 2016-09-14 | 2017-02-15 | 郑州峰泰纳米材料有限公司 | Preparation method of small-aperture foamed aluminium |
-
2017
- 2017-10-23 CN CN201710992264.3A patent/CN107760905A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1227206A (en) * | 1998-12-25 | 1999-09-01 | 北京航空材料研究院 | Foamed silicon carbide particle reinforced aluminium base composite material and its producing technology |
| CN101139666A (en) * | 2007-10-26 | 2008-03-12 | 上海大学 | Method for preparing SiC particle reinforced foamed aluminium radical composite material |
| CN101182608A (en) * | 2007-12-12 | 2008-05-21 | 昆明理工大学 | Preparation method of small pore diameter foamed aluminium |
| CN104263988A (en) * | 2014-05-04 | 2015-01-07 | 昆明理工大学 | Preparing method of TiB2 particle reinforced foamed aluminium/aluminium alloy |
| CN106399737A (en) * | 2016-09-14 | 2017-02-15 | 郑州峰泰纳米材料有限公司 | Preparation method of small-aperture foamed aluminium |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109207880B (en) * | 2018-10-22 | 2019-11-22 | 内蒙古农业大学 | A kind of foamed aluminium material and preparation method thereof of high intensity |
| CN109802340A (en) * | 2019-01-02 | 2019-05-24 | 安徽坤和电气有限公司 | A kind of high vapor-permeable type cable testing bridge |
| CN112342423A (en) * | 2020-09-15 | 2021-02-09 | 安徽省新方尊自动化科技有限公司 | Processing method of foamed aluminum gun stock |
| CN114669743A (en) * | 2022-03-18 | 2022-06-28 | 辽宁石油化工大学 | Boron carbide reinforced foamed aluminum composite material and preparation method thereof |
| CN114669743B (en) * | 2022-03-18 | 2023-12-05 | 辽宁石油化工大学 | Boron carbide reinforced foam aluminum composite material and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107760905A (en) | A kind of ZrB2The preparation method of particle reinforced aluminum foam/aluminium alloy | |
| CN104263988B (en) | A kind of TiB2the preparation method of particle reinforced aluminum foam/aluminium alloy | |
| CN102002607B (en) | Method for preparing foamed aluminum by foaming melt | |
| US6444007B1 (en) | Production of metal foams | |
| CN100410413C (en) | Carbon fiber mixing reinforced magnesium-base high modulus composite material and its preparing process | |
| CN100563874C (en) | Be used to prepare the method for bubble aluminum alloy special-shaped member with even pore structure | |
| CN108326044B (en) | Method for preparing foamed aluminum sandwich plate by liquid-phase mixed rolling and cladding | |
| CN102787252A (en) | Method for preparing TiB2 reinforced aluminium matrix composite in situ | |
| CN105821260A (en) | Aluminum, scandium and zirconium intermediate alloy for aluminum alloy and production method thereof | |
| CN111394605A (en) | TiB2Preparation method of particle reinforced foamed aluminum/aluminum alloy | |
| CN106381408A (en) | Method for preparing aluminum-scandium intermediate alloy by thermally reducing aluminum in elpasolite fused salt | |
| CN104046825B (en) | A kind of aluminum based composite material enhanced by granules in situ preparation method | |
| CN109609814A (en) | A kind of double scale ceramic particles mix high elastic modulus high-strength aluminum alloy and preparation method thereof | |
| WO2011089626A2 (en) | Particulate aluminium matrix nano-composites and a process for producing the same | |
| CN103028720B (en) | Manufacturing method of self-drilling anchor rod bit | |
| CN109652669A (en) | A kind of micro-nano Mg2Si particle reinforced aluminum alloy powder and preparation method thereof | |
| CN101368237B (en) | Process for producing silicon particle reinforced zinc based composite material | |
| CN106636716B (en) | A kind of foamed aluminium production technology | |
| CN102268573A (en) | Zinc-aluminum-titanium-boron intermediate alloy and preparation method thereof | |
| CN103073309B (en) | Environment-friendly furnace lining material for medium-frequency induction furnace and preparation method of environment-friendly furnace lining material | |
| CN107601453A (en) | A kind of preparation method of high opening rate foam carbon material | |
| CN107858542A (en) | A kind of micron pore size closed-cell foam composite material of magnesium alloy preparation method | |
| CN101892406A (en) | Method for preparing aluminum-based composite material with uniform and fine isometric crystal grains | |
| CN103667764B (en) | A kind of preparation method of zinc-aluminum alloy foam | |
| CN105420574A (en) | Good-high-temperature-strength magnesium and copper alloy and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180306 |