CN101100730A - Nano aluminum borate crystal whisker/deformation aluminum alloy composite material and preparation method thereof - Google Patents
Nano aluminum borate crystal whisker/deformation aluminum alloy composite material and preparation method thereof Download PDFInfo
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- CN101100730A CN101100730A CNA2007100122441A CN200710012244A CN101100730A CN 101100730 A CN101100730 A CN 101100730A CN A2007100122441 A CNA2007100122441 A CN A2007100122441A CN 200710012244 A CN200710012244 A CN 200710012244A CN 101100730 A CN101100730 A CN 101100730A
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- crystal whisker
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Abstract
A composite material of nano Al borate whiskers/deformable Al alloy comprises (weight parts): nano Al whiskers (15-20), nano zinc oxide (6-8), deformable Al alloy 2011 (90-100), and Zr powder (0.3-0.5), prepared by: binding the whiskers into blocks, spraying Zr powders on them, pre-heating the blocks and molds, putting the blocks into the molds, pouring deformable Alloy 2011 molten at 640-680 deg.C into molds to disperse uniformly, and cooling to obtain products, which are of high strength, size-stabilization, wear-, heat-, and corrosion-resistance.
Description
Technical field the present invention relates to a kind of deformation aluminum alloy composite material and preparation method thereof, is that a kind of nano aluminum borate crystal whisker must be matrix material of matrix and preparation method thereof for the wrought aluminium alloy that strengthens body specifically.
The carborundum whisker that background technology grew up in the last few years/6061 deformation aluminum alloy composite materials, its performance is good, and as the intensity height, modulus is big, has wear resistance, dimensional stability, thermotolerance etc., but cost an arm and a leg the existing air system that only is used for; The above-mentioned performance of aluminium borate whisker is suitable with silicon carbide whisker, and price only be its 1/10, for reducing the cost of deformation aluminum alloy composite material, enable to be widely used in industry and civil area, pressing for the research nano aluminum borate crystal whisker must be matrix material of matrix and preparation method thereof for the wrought aluminium alloy that strengthens body.
Summary of the invention the object of the present invention is to provide a kind of nano aluminum borate crystal whisker palpus/deformation aluminum alloy composite material and preparation method thereof, and its intensity is big, and modulus is big, has wear resistance, dimensional stability, thermotolerance is greatly improved than existing alloy, and its preparation method is easy.
Technical scheme of the present invention is as follows:
Matrix material of the present invention is made by the raw material of following parts by weight:
Aluminium borate whisker 15-20 part
Nano zine oxide 6-8 part
Wrought aluminium alloy 2011 90-100 parts
Zirconium powder 0.3-0.5 part.
The further scheme of above-mentioned matrix material is:
20 parts of aluminium borate whiskers
8 parts of nano zine oxides
2,011 100 parts of wrought aluminium alloies
0.5 part of zirconium powder.
The molecular formula of above-mentioned aluminium borate whisker is 9AI
2O
3.2B
2O
3
The particle diameter of above-mentioned nano zine oxide is 10-50nm.
Above-mentioned wrought aluminium alloy is the distortion aluminum-copper alloy, and its trade mark is 2011.
The preparation method of above-mentioned nano aluminum borate crystal whisker palpus/deformation aluminum alloy composite material, be made up of following steps:
1, preparation nano aluminum borate crystal whisker palpus
Take by weighing nano zine oxide and aluminium borate whisker according to the above ratio, the polyetheramides that adds nano zine oxide weight 2-5%, place deionized water, stir through disperseing making beating, rotor speed 60r/min, the temperature of suspension is controlled at 70-80 ℃, churning time 10-15min, add aluminium borate whisker, continue to stir 10-15min, rotor speed 100 Γ/min, transfer the pH value of suspension with sodium hydroxide or chromium hydroxide, make it in neutrality or slightly acidic, after the solid phase precipitation flocculation, leave standstill 1h in the suspension, behind deionized water rinsing, place stoving oven to dry, promptly obtain homodisperse nano aluminum borate crystal whisker palpus powder, placement air seasoning place is standby.
2, preparation nano aluminum borate crystal whisker palpus/deformation aluminum alloy composite material
A, according to the above ratio take by weighing nano aluminum borate crystal whisker must, bond with binding agent, the preparation prefabricated section;
B, zirconium powder is sprayed on the prefabricated section surface, makes the prefabricated section that the surface contains the even sprayed coating of zirconium powder;
C, the prefabricated section that will contain zirconium powder are preheating to 650 ℃, mold heated to 300 ℃, the prefabricated section that will contain the zirconium powder sprayed coating is put in the die cavity, pour into 640-680 ℃ wrought aluminium alloy 2011 melts, pour into once and finish, apply the pressure of 40-60MPa, keep-up pressure till solidify, make aluminium alloy melt infiltrate above-mentioned nano aluminum borate crystal whisker palpus piece, homodisperse, cooled and solidified just obtains the product of moulding.
The invention has the advantages that: 1, the every excellent property of matrix material of the present invention, the intensity height, modulus is big, matrix material with 2,011 100 parts of making of 8 parts/wrought aluminium alloy of 20 parts/nano zine oxide of aluminium borate whisker, its intensity reaches 610MPa, modulus reaches 120GPa, and its intensity is brought up to 610MPa from 2011 aluminium alloy 380MPa; Modulus then increases to 120GPa from 69 GPa, and 2, the wear resistance of this matrix material, dimensional stability, thermotolerance be greatly improved than former alloy, kept the good characteristic of machinability of original alloy, is a kind of alloy of cutting soon; The antiseptic property of this material is good, places easy corrosive occasion, need not do rotproofing in addition; Still heat-treatable strengthened processing aluminium alloy is suitable for the manufacturing machine part, has very high intensity, has tangible timeliness feature.3, this matrix material can be used for a plurality of fields, because of its intensity and Young's modulus at normal temperatures big, can substitute steel and various metal, general steel strength is 500--600MPa, the strength ratio steel of matrix material of the present invention are also high, if it is replace traditional metal materials,, also good than steel with the consistency of organism because of its wear-resisting working life can prolong 2 times with material of the present invention.4, security and reliability height if being used for its reliability of aircraft manufacturing can improve tens of times, thereby improve its safety performance.5, material of the present invention can reclaim once more and to utilize, also can with other aluminium, aluminium alloy fusion, utilize once more and make aluminum products, thereby can reduce material cost, free from environmental pollution.6, making method of the present invention is simple and easy to operate.
Description of drawings Fig. 1 is preparation method's of the present invention prefabricated section, a die cavity synoptic diagram;
Fig. 2 be preparation method of the present invention pour into the aluminium alloy melt synoptic diagram;
Fig. 3 is a preparation method's of the present invention counterdie synoptic diagram;
Fig. 4 is a preparation method's of the present invention pressurization synoptic diagram.
Embodiment
Embodiment 1: 2,011 100 parts of wrought aluminium alloies, 20 parts of aluminium borate whiskers, 8 parts of nano zine oxides, 0.5 part of zirconium powder.
Embodiment 2: 2,011 95 parts of wrought aluminium alloies, 17 parts of aluminium borate whiskers, 7 parts of nano zine oxides, 0.4 part of zirconium powder.
Embodiment 3: 2,011 90 parts of wrought aluminium alloies, 15 parts of aluminium borate whiskers, 6 parts of nano zine oxides, 0.3 part of zirconium powder.
The preparation method of above-mentioned matrix material is made up of following steps, accompanying drawings:
1, preparation nano aluminum borate crystal whisker palpus
Take by weighing nano zine oxide and aluminium borate whisker according to the above ratio, the polyetheramides that adds nano zine oxide weight 2-5%, place deionized water, the nano oxidized zinc concentration of monomer whose remains on 14-16%, stir through disperseing making beating, rotor speed 60r/min, the temperature of suspension is controlled at 70-80 ℃, churning time 10--15min, add aluminium borate whisker, continue to stir 10--15min, rotor speed 100 Γ/min, adjust the pH value of suspension with sodium hydroxide or chromium hydroxide, make it in neutrality or slightly acidic, after the solid phase precipitation flocculation, leave standstill 1h in the suspension, behind deionized water rinsing, place stoving oven to dry, promptly obtain homodisperse nano aluminum borate crystal whisker palpus powder, placement air seasoning place is standby.
Polyetheramides (PEI-P) is a cats product, and synthetic resins institute in Shanghai produces.
2,, preparation nano aluminum borate crystal whisker palpus/deformation aluminum alloy composite material, can see in conjunction with Fig. 1-Fig. 4:
A, taking by weighing nano aluminum borate crystal whisker according to the above ratio must composite granule, bonds with binding agent; Preparation prefabricated section 1,2 is a patrix, and 3 is die cavity;
B, zirconium powder is sprayed on the prefabricated section surface, makes the prefabricated section that the surface contains the even sprayed coating of zirconium powder;
C, the prefabricated section 5 that will contain zirconium powder are preheating to 650 ℃, mold heated to 300 ℃, and the prefabricated section that will contain the zirconium powder sprayed coating is put in the die cavity 3, pours into 640-680 ℃ wrought aluminium alloy 2011 melts 4, pours into once and finishes, and the operating time is short as much as possible; Fig. 3 is the counterdie state, and Fig. 4 is the pressure that applies 40-60MPa with hydropress 6, keep-ups pressure till solidify, and making aluminium alloy melt infiltrate above-mentioned nano aluminum borate crystal whisker must piece, homodisperse, and cooled and solidified just obtains the product 7 of moulding.
The distortion aluminum-copper alloy alloy designations that the present invention selects for use is 2011, be body material, nano aluminum borate crystal whisker must under high temperature fused state, adopt the mechanical pressure infiltration compound for strengthening the body material, preparation aluminium borate whisker/deformation aluminum alloy composite material, select principal element content (massfraction/%), aluminium surplus, the copper of body material for use, 5.0-6.0, bismuth 0.2-0.6, plumbous 0.2-0.6, silicon≤0.4, iron≤0.7, zinc≤0.3, other impurity add up to 0.15. alkali-free metallic element, alkali earth metal, be easy to and aluminium borate whisker, nano zine oxide is compound, and surface reaction is minimum.Dark village, Fushan City, Guangdong Province extraordinary aluminium alloy manufactory produces.
The molecular formula of the aluminium borate whisker that the present invention selects for use is 9AI
2O
3.2B
2O
3, it belongs to rhombic system, and easily and alkali metal, the alkali earth metal reaction is so select the cooperation of alkali-free metallic element, alkali earth metal in it and above-mentioned aluminum-copper alloy 2011 chemical ingredientss for use.Its whisker mean diameter 0.5-5 μ m, length is 10-100 μ m, density is 2.93g/cm
3, fusing point is 1960 ℃, tensile strength 8GPa, and tensile modulus is 400GPa, thermal expansivity (axially) is 1.9 * 10
-6K.Shanghai Jingxu Composite Material Co., Ltd. produces.
The nano zine oxide that the present invention selects for use, particle diameter are between 10-50nm, and specific surface area sharply increases, and surface molecular is arranged, electronic structure and crystalline structure all change, and has incomparable property of zinc oxide and purposes at aspects such as magnetic, light, electricity, catalysis.Haitai Nano Material Co., Ltd., Nanjing produces.
Add a spot of zirconium metal in the matrices of composite material of the present invention, it has stronger deaeration in condenser and erosion resistance, to suppressing the reaction of aluminium borate whisker, nano zine oxide and alloy matrix aluminum, it is perishable to suppress aluminum-copper alloy 2011, and forming the good interface structure has obvious effect.Zirconium powder is that Zibo helps zirconium powder company limited to produce forever.
Claims (6)
1, a kind of nano aluminum borate crystal whisker palpus/deformation aluminum alloy composite material, it is characterized in that: it is made by the raw material of following parts by weight:
Aluminium borate whisker 15-20 part, nano zine oxide 6-8 part, wrought aluminium alloy 201190-100 part, zirconium powder 0.3-0.5 part.
2, nano aluminum borate crystal whisker palpus/deformation aluminum alloy composite material matrix material according to claim 1, it is characterized in that: it is made by the raw material of following parts by weight:
20 parts of aluminium borate whiskers, 8 parts of nano zine oxides, 2011100 parts of wrought aluminium alloies, 0.5 part of zirconium powder.
3, nano aluminum borate crystal whisker palpus/deformation aluminum alloy composite material according to claim 1 is characterized in that: the molecular formula of its aluminium borate whisker is 9AI
2O
3.2B
2O
3
4, nano aluminum borate crystal whisker palpus/deformation aluminum alloy composite material according to claim 1 is characterized in that: the particle diameter of its nano zine oxide is 10-50nm.
5, nano aluminum borate crystal whisker palpus/deformation aluminum alloy composite material according to claim 1 is characterized in that: its wrought aluminium alloy is the distortion aluminum-copper alloy, and its trade mark is 2011.
6, the preparation method of nano aluminum borate crystal whisker palpus/deformation aluminum alloy composite material according to claim 1 is characterized in that: be made up of following steps:
(1), preparation nano aluminum borate crystal whisker palpus
Take by weighing nano zine oxide and aluminium borate whisker according to the above ratio, the polyetheramides that adds nano zine oxide weight 2-5%, place deionized water, stir through disperseing making beating, rotor speed 60r/min, the temperature of suspension is controlled at 70-80 ℃, and churning time 10--15min adds aluminium borate whisker, continue to stir 10--15min, rotor speed 100 Г/min,, with the pH value of sodium hydroxide or chromium hydroxide adjustment suspension, make it in neutrality or slightly acidic, after the solid phase precipitation flocculation, leave standstill 1h, behind deionized water rinsing in the suspension, place stoving oven to dry, promptly obtaining homodisperse nano aluminum borate crystal whisker must powder.
(2), preparation nano aluminum borate crystal whisker palpus/deformation aluminum alloy composite material
A, according to the above ratio take by weighing nano aluminum borate crystal whisker must, bond with binding agent, the preparation prefabricated section (1);
B, zirconium powder is sprayed on the prefabricated section surface, makes the prefabricated section (5) that the surface contains the even sprayed coating of zirconium powder;
C, the prefabricated section that will contain zirconium powder are preheating to 650 ℃, mold heated to 300 ℃, the prefabricated section that will contain the zirconium powder sprayed coating is put in the die cavity (3), pour into 640-680 ℃ wrought aluminium alloy 2011 melts (4), pour into once and finish, apply the pressure of 40-60MPa, keep-up pressure till solidify, make aluminium alloy melt infiltrate above-mentioned nano aluminum borate crystal whisker palpus piece, homodisperse, cooled and solidified just obtains the product (7) of moulding.
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|---|---|---|---|
| CNB2007100122441A CN100471978C (en) | 2007-07-20 | 2007-07-20 | Nano aluminum borate crystal whisker/deformation aluminum alloy composite material and preparation method thereof |
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| CNB2007100122441A CN100471978C (en) | 2007-07-20 | 2007-07-20 | Nano aluminum borate crystal whisker/deformation aluminum alloy composite material and preparation method thereof |
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| CN100471978C CN100471978C (en) | 2009-03-25 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912962A (en) * | 2010-08-25 | 2010-12-15 | 天津大学 | Method for growing and preparing aluminium borate whisker/ aluminium composite powder on aluminium powder surface in situ |
| CN102051555A (en) * | 2011-01-14 | 2011-05-11 | 南京信息工程大学 | Heat-resistant aluminium alloy material and preparation method thereof |
| CN102051556A (en) * | 2011-01-14 | 2011-05-11 | 南京信息工程大学 | Wear-resistant aluminium alloy material and preparation method thereof |
| CN107460474A (en) * | 2017-06-23 | 2017-12-12 | 安庆市枞江汽车部件制造有限公司 | A kind of production method of High-quality automobile safety belt wind spring |
| CN109440027A (en) * | 2018-10-31 | 2019-03-08 | 哈尔滨工业大学 | A kind of whisker coated with carbon nanotube mixes prefabricated section preparation method |
-
2007
- 2007-07-20 CN CNB2007100122441A patent/CN100471978C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912962A (en) * | 2010-08-25 | 2010-12-15 | 天津大学 | Method for growing and preparing aluminium borate whisker/ aluminium composite powder on aluminium powder surface in situ |
| CN101912962B (en) * | 2010-08-25 | 2011-09-28 | 天津大学 | Method for growing and preparing aluminium borate whisker/ aluminium composite powder on aluminium powder surface in situ |
| CN102051555A (en) * | 2011-01-14 | 2011-05-11 | 南京信息工程大学 | Heat-resistant aluminium alloy material and preparation method thereof |
| CN102051556A (en) * | 2011-01-14 | 2011-05-11 | 南京信息工程大学 | Wear-resistant aluminium alloy material and preparation method thereof |
| CN102051556B (en) * | 2011-01-14 | 2012-08-22 | 南京信息工程大学 | Preparation method of wear-resistant aluminium alloy material |
| CN107460474A (en) * | 2017-06-23 | 2017-12-12 | 安庆市枞江汽车部件制造有限公司 | A kind of production method of High-quality automobile safety belt wind spring |
| CN109440027A (en) * | 2018-10-31 | 2019-03-08 | 哈尔滨工业大学 | A kind of whisker coated with carbon nanotube mixes prefabricated section preparation method |
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| Publication number | Publication date |
|---|---|
| CN100471978C (en) | 2009-03-25 |
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Granted publication date: 20090325 Termination date: 20110720 |