CN101876038A - Copper alloy based diatomite, pumice and ferric oxide composite material and preparation method thereof - Google Patents
Copper alloy based diatomite, pumice and ferric oxide composite material and preparation method thereof Download PDFInfo
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Abstract
The invention provides a copper alloy based diatomite, pumice and ferric oxide composite material and a preparation method thereof. The composite material has high absorbing property and excellent damping property. The preparation method is simple in process, low in production cost and suitable for industrialized production. The composite material takes the copper alloy as the matrix and diatomite, pumice and ferric oxide compounds are distributed on the matrix. The diatomite, pumice and ferric oxide compounds account for 45-50% of the composite material by volume. The copper alloy matrix comprises the following chemical components in percentage by weight: 3-5% of Al, 0.01-0.05% of Ti, 0.5-1% of Sn, 0.005-0.01% of Nd and the balance Cu.
Description
One, technical field
The invention belongs to metal material field, relate to a kind of copper alloy based diatomite, pumice ferric oxide and inhale ripple vibration damping composite material and preparation method thereof and preparation method thereof.
Two, background technology
Belong at present in the material field, the suction ripple damping effect of material has been subjected to attention.
CN200410023374.1 number application relates to a kind of aluminium base absorbing material and preparation method thereof, it is characterized in that: adopt direct current or one step of alternating-current or two-step anodic oxidization method to form multiaperture pellumina in aluminium or copper alloy plate top layer, make aluminium-based porous alumina formwork, i.e. the AAO template; Adopt direct current or pulsed current electrochemical deposition in aluminium base AAO porous-film, to assemble the magnetic Nano array of metal lines, make the aluminium base absorbing material of top layer assemble in situ magnetic Nano linear array.The shortcoming of this method is a requirement technical difficulty height.
CN200910071958.9 number application proposes ceramic whisker/ferromagnetic metal composite wave-absorbing material and preparation method thereof, and it relates to a kind of electromagnetic-power-absorbing composite and preparation method thereof that is used for.The ceramic whisker that the surface is coated with ferromagnetic metal coating is that 300～400 ℃, heat-treating atmosphere are thermal treatment 60 minutes under the condition of hydrogen or argon gas in temperature, promptly gets ceramic whisker/ferromagnetic metal composite wave-absorbing material.The shortcoming of this method is that ceramic whisker surface is coated with ferromagnetic metal coating, and ferromagnetic metal easily comes off in the processing.
CN200810219444.9 number application discloses a kind of preparation method of particle reinforced damping porous nickel-titanium memory alloy based composite material.Adopt the step powder sintering; the silicon or the alumina particle of nickel, titanium metal powder and controlled material are pressed into green compact behind the uniform mixing by a certain percentage; silicon grain or alumina particle account for 5～15% of green compact weight, take step type of heating Integratively sintering and make matrix material.The shortcoming of this material is that absorbing property is poor.
Three, summary of the invention
Purpose of the present invention is exactly at above-mentioned technological deficiency, and a kind of copper alloy based diatomite, pumice ferric oxide composite material is provided, this matrix material absorbing property height, and have superior damping capacity.
Another object of the present invention provides the preparation method of copper alloy based diatomite, pumice ferric oxide composite material, and this preparation method's technology is simple, and production cost is low, is suitable for suitability for industrialized production.
The objective of the invention is to be achieved through the following technical solutions:
A kind of copper alloy based diatomite, pumice ferric oxide composite material, this matrix material are matrix with the copper alloy, the diatomite, pumice ferric oxide that distributing on matrix mixture; The volume percent that diatomite, pumice ferric oxide mixture accounts for matrix material is 45-50%; The following chemical components in percentage by weight of this copper alloy matrix: Al is 3%～5%, and Ti is 0.01%～0.05%, and Sn is 0.5%-1%, and Nd is 0.005%-0.01%, and all the other are Cu.
A kind of preparation method of copper alloy based diatomite, pumice ferric oxide composite material is characterized in that: it may further comprise the steps:
A. the preparation of diatomite, pumice ferric oxide mixture: earlier iron(ic) chloride and ferrous ammonium sulphate are packed in the hydro-thermal container of being with teflon lined, (adding less water to dissolving gets final product) is dissolved in water, reinstall diatomite and float stone mixture, diatomite particle is of a size of 0.1-0.4mm, the float stone particulate is of a size of 0.5-1mm, diatomite and pumiceous weight ratio are 0.5-1 in the diatomite, pumice mixture: 1, stir above material and reach 4-8min, iron(ic) chloride, the weight ratio of ferrous ammonium sulphate and diatomite, pumice mixture is 1: 1: 1-2, and naturally cooling just obtains diatomite ferric oxide mixture after will stirring baking oven that thing places 240 ℃ after stir finishing and being incubated 3h;
B. the preparation of iron fiber: to contain Cu be 0.003%-0.09% to percentage by weight, and Sm is 0.003%-0.09%, and all the other are prepared burden for Fe, and raw material places fusing in the riser pipe that has heating unit and forms iron alloy liquid, and temperature of fusion is 1560-1580 ℃; The riser pipe bottom is set with plunger, plunger can move along riser pipe is upper and lower under power set drives, and liquid level in the riser pipe can be raised when moving on the plunger, thereby be convenient to the runner flange alloy liquid is extracted, form iron fiber, runner adopts wheel rim that the water-cooled copper alloy runner of flange is arranged.Alloy liquid contacts with the water-cooled copper alloy runner flange of rotation by riser pipe, and water-cooled copper alloy runner runner flange is extracted alloy liquid, forms the alloy material fiber, and the linear velocity of runner flange is 19-21m/s, and the diameter of iron fiber is 10-45 μ m; Runner is opened the runner water-cooling system before opening and changeing, and the water-cooling system inflow temperature is less than 30 ℃;
C. the iron fiber and the diatomite ferric oxide mixture that with length-to-diameter ratio are 7: 1 are then put into the cavity formation mixture precast body that the bottom leads to the water cooled steel molding jig of vacuum system, the weight percent that iron fiber accounts for diatomite ferric oxide mixture is 2%, and control mixture precast body accounts for the 45-50% of metal die cavity volume; Open the water-cooling system of steel die, the control inflow temperature is 20-30 ℃.
D. the preparation of copper alloy liquid: with weight percentage Al is 3%～5%, and Ti is 0.01%～0.05%, and Sn is 0.5%-1%, and Nd is 0.005%-0.01%, and all the other are the raw material of Cu, is fused into alloy liquid under 1280-1320 ℃ of temperature;
E. open vacuum system, the relative vacuum degree of controlling in the above-mentioned steel die is-30Kpa, with above-mentioned copper alloy liquid pour into the pre-body of mixture in the steel die cavity above, copper alloy liquid infiltrates the gap in the mixture precast body under the vacuum pressure effect, alloy liquid solidifies at the mould internal cooling, forms the copper alloy based diatomite, pumice ferric oxide composite material.
The present invention's beneficial effect compared to existing technology is as follows:
Float stone among the present invention, diatomite space are big, are easy to admit ferric oxide, ferric oxide (Fe
3O
4) be in float stone, the diatomaceous space, form float stone, diatomite ferric oxide mixture that ferric oxide can not be scattered, thereby become matrix material and absorb electromagnetic solid material center.Float stone is different with diatomaceous space, holds the different amts of iron and cobalt/cobalt oxide, is beneficial to electromagnetic quick decay.
Ferric oxide is in float stone, the diatomaceous space, does not contact with copper alloy liquid, therefore can not cause the oxidation of copper alloy;
Sn in the copper alloy can promote copper alloy to combine with float stone, diatomaceous interface.Ti in the copper alloy and Nd can reduce the particle of copper alloy, improve the intensity of matrices of composite material.Solid float stone, diatomite ferric oxide mixture can improve the compressive property of copper alloy composite material.These can both improve the mechanical property of copper alloy base float stone, diatomite ferric oxide composite material.
The effect of iron fiber is the intensity that improves matrices of composite material.
Alloy property of the present invention sees Table 1.
Float stone, diatomite space are big, are easy to admit ferric oxide, therefore stir in the preparation and all lack heat-up time, and be with short production cycle.
Composite material preparation process is easy, and the matrix material of production has certain excellent damping performance, and absorbing property is superior simultaneously, and production cost is low, is convenient to very much suitability for industrialized production.
Four, description of drawings
The metallographic structure of the copper alloy based diatomite, pumice ferric oxide composite material that Fig. 1 makes for the embodiment of the invention one.By
Fig. 1 can see be distributed with diatomite ferric oxide complex body on copper alloy matrix.
Five, embodiment
Below each embodiment only as explanation of the present invention, weight percent wherein all can change weight g, kg or other weight unit into.
Embodiment one:
The preparation process of copper alloy based diatomite, pumice ferric oxide composite material of the present invention is as follows:
A. the preparation of diatomite, pumice ferric oxide mixture: earlier iron(ic) chloride and ferrous ammonium sulphate are packed in the hydro-thermal container of being with teflon lined, (adding less water to dissolving gets final product) is dissolved in water, reinstall diatomite and float stone mixture, diatomite particle is of a size of 0.2mm, the float stone particulate is of a size of 0.6mm, diatomite and pumiceous weight ratio are 0.5: 1 in the diatomite, pumice mixture, stir above material and reach 4-8min, iron(ic) chloride, the weight ratio of ferrous ammonium sulphate and diatomite, pumice mixture is 1: 1: 1, and naturally cooling just obtains diatomite ferric oxide mixture after will stirring baking oven that thing places 240 ℃ after stir finishing and being incubated 3h;
B. the preparation of iron fiber: to contain Cu be 0.003% to percentage by weight, and Sm is 0.003%, and all the other are prepared burden for Fe, and raw material places fusing in the riser pipe that has heating unit and forms iron alloy liquid, and temperature of fusion is 1560-1580 ℃; The riser pipe bottom is set with plunger, plunger can move along riser pipe is upper and lower under power set drives, and liquid level in the riser pipe can be raised when moving on the plunger, thereby be convenient to the runner flange alloy liquid is extracted, form iron fiber, runner adopts wheel rim that the water-cooled copper alloy runner of flange is arranged.Alloy liquid contacts with the water-cooled copper alloy runner flange of rotation by riser pipe, and water-cooled copper alloy runner runner flange is extracted alloy liquid, forms the alloy material fiber, and the linear velocity of runner flange is 19-21m/s, and the diameter of iron fiber is 10-45 μ m; Runner is opened the runner water-cooling system before opening and changeing, and the water-cooling system inflow temperature is less than 30 ℃;
C. the preparation of mixture precast body: the cavity that with length-to-diameter ratio is the water cooled steel molding jig of 7: 1 iron fiber and the diatomite ferric oxide mixture logical vacuum system in bottom of putting into heating unit then forms the mixture precast body, the weight percent that iron fiber accounts for diatomite ferric oxide mixture is 2%, and control mixture precast body accounts for the 45-50% of metal die cavity volume; Open the water-cooling system of steel die, the control inflow temperature is 20-30 ℃.
D. the preparation of copper alloy liquid: with the weight percentage of weight percentage copper alloy composition is that Al is 3%, and Ti is 0.01%%, and Sn is 0.5%, and Nd is 0.005%, and all the other are Cu, are fused into alloy liquid under 1280-1320 ℃ of temperature;
E. open vacuum system, the relative vacuum degree of controlling in the above-mentioned steel die is-30Kpa, with above-mentioned copper alloy liquid pour into the pre-body of mixture in the steel die cavity above, copper alloy liquid infiltrates the gap in the mixture precast body under the vacuum pressure effect, alloy liquid solidifies at the mould internal cooling, forms the copper alloy based diatomite, pumice ferric oxide composite material.
Embodiment two:
A. the preparation of diatomite, pumice ferric oxide mixture: the weight ratio of iron(ic) chloride, ferrous ammonium sulphate and diatomite, pumice mixture is 1: 1: 2, diatomite and pumiceous weight ratio are 1: 1 in the diatomite, pumice mixture, diatomite particle is of a size of 0.4mm, and the float stone particulate is of a size of 1mm.
B. the preparation of iron fiber: to contain Cu be 0.09% to percentage by weight, and Sm is 0.006%, and all the other are prepared burden for Fe;
C. the preparation of mixture precast body: the volume percent that control diatomite, pumice ferric oxide mixture accounts for matrix material is 45-50%.
D. the preparation of copper alloy liquid: the weight percentage of copper alloy composition is that Al is 5%, and Ti is 0.05%, and Sn is 1%, and Nd is 0.01%, and all the other are Cu.
Preparation process is with embodiment one.
Embodiment three:
A. the preparation of diatomite, pumice ferric oxide mixture: the weight ratio of iron(ic) chloride, ferrous ammonium sulphate and diatomite, pumice mixture is 1: 1: 1.5, diatomite and pumiceous weight ratio are 0.7: 1 in the diatomite, pumice mixture, diatomite particle is of a size of 0.3mm, the float stone particulate is of a size of 0.6mm
B. the preparation of iron fiber: to contain Cu be 0.006% to percentage by weight, and Sm is 0.006%, and all the other are prepared burden for Fe,
C. the preparation of mixture precast body: the volume percent that control diatomite, pumice ferric oxide mixture accounts for matrix material is 45-50%.
D. the preparation of copper alloy liquid: the weight percentage of copper alloy composition is that Al is 4%, and Ti is 0.035%, and Sn is 0.71%, and Nd is 0.008%, and all the other are Cu.
Preparation process is with embodiment one.
Embodiment four: (proportioning raw materials is the example in ratio range of the present invention not)
A. the preparation of diatomite, pumice ferric oxide mixture: the weight ratio of iron(ic) chloride, ferrous ammonium sulphate and diatomite, pumice mixture is 1: 1: 0.8, diatomite and pumiceous weight ratio are 0.4: 1 in the diatomite, pumice mixture, diatomite particle is of a size of 0.08mm, the float stone particulate is of a size of 0.4mm
B. the preparation of iron fiber: to contain Cu be 0.001% to percentage by weight, and Sm is 0.1%, and all the other are prepared burden for Fe,
C. the preparation of mixture precast body: the volume percent that control diatomite, pumice ferric oxide mixture accounts for matrix material is 45-50%.
D. the preparation of copper alloy liquid: the weight percentage of copper alloy composition is that Al is 2%, and Ti is 0.005%, and Sn is 0.4%, and Nd is 0.0041%, and all the other are Cu.
Preparation process is with embodiment one.
Embodiment five: (proportioning raw materials is the example in ratio range of the present invention not)
A. the preparation of diatomite, pumice ferric oxide mixture: the weight ratio of iron(ic) chloride, ferrous ammonium sulphate and diatomite, pumice mixture is 1: 1: 2.1, diatomite and pumiceous weight ratio are 1.2: 1 in the diatomite, pumice mixture, diatomite particle is of a size of 0.5mm, the float stone particulate is of a size of 1.1mm
B. the preparation of iron fiber: to contain Cu be 0.12% to percentage by weight, and Sm is 0.001%, and all the other are prepared burden for Fe,
C. the preparation of mixture precast body: the volume percent that control diatomite, pumice ferric oxide mixture accounts for matrix material is 45-50%.
D. the preparation of copper alloy liquid: the weight percentage of copper alloy composition is that Al is 6%, and Ti is 0.06%, and Sn is 1.2%, and Nd is 0.02%, and all the other are Cu.
Preparation process is with embodiment one.
Following table is the alloy property synopsis of different components and proportioning:
Table 1
Copper alloy based diatomite, pumice ferric oxide composite material among the present invention, the particle size of mixture is too small, has both reduced suction ripple unit, has reduced suction intensity of wave and vibration damping intensity, is unfavorable for the matrix material manufacturing again; The particle size of mixture is excessive, inhales the ripple unit and increases, and has reduced to inhale the unitary quantity of ripple in the unit matrix material volume, also is unfavorable for inhaling ripple and vibration damping.
When the copper alloy based diatomite, pumice ferric oxide composite material prepared, diatomite, pumice quantity was too small, and iron(ic) chloride, ferrous ammonium sulphate are difficult for all entering the diatomite, pumice gap, and the total ferric oxide quantity of matrix material is few, inhales a little less than the intensity of wave; Diatomite, pumice quantity is too much, be difficult for to form perfect matrix material, and the ferric oxide quantity of holding in the diatomite, pumice gap is few, inhale intensity of wave also a little less than.
When the copper alloy based diatomite, pumice ferric oxide composite material prepares, diatomite quantity is very few or diatomite particle is too small, every not opening the diatomite, pumice particle, be unfavorable for the infiltration of copper alloy liquid, diatomite quantity is too much or diatomite particle is excessive, can influence the mechanical property of Al-alloy based diatomite, pumice barium ferric oxide composite material.
Al in the copper alloy matrix, Ti, Sn are in the application's scope, and matrix material has good performance.These elements exceed the application's ratio range, and frangible compounds quantity is many, and copper alloy is difficult to be combined with the diatomite, pumice interface, and the mechanical property of copper alloy self reduces, and also reduces the wave absorbtion and the vibration damping of matrix material greatly.
Claims (2)
1. copper alloy based diatomite, pumice ferric oxide composite material, this matrix material is a matrix with the copper alloy, the diatomite, pumice ferric oxide that distributing on matrix mixture; The volume percent that diatomite, pumice ferric oxide mixture accounts for matrix material is 45-50%; The following chemical components in percentage by weight of this copper alloy matrix: Al is 3%～5%, and Ti is 0.01%～0.05%, and Sn is 0.5%-1%, and Nd is 0.005%-0.01%, and all the other are Cu.
2. the preparation method of a copper alloy based diatomite, pumice ferric oxide composite material, it is characterized in that: it may further comprise the steps:
A. the preparation of diatomite, pumice ferric oxide mixture: earlier iron(ic) chloride and ferrous ammonium sulphate are packed in the hydro-thermal container of being with teflon lined, be dissolved in water, reinstall diatomite and float stone mixture, diatomite particle is of a size of 0.1-0.4mm, the float stone particulate is of a size of 0.5-1mm, diatomite and pumiceous weight ratio are (0.5-1) in the diatomite, pumice mixture: 1, stir above material and reach 4-8min, iron(ic) chloride, the weight ratio of ferrous ammonium sulphate and diatomite, pumice mixture is 1: 1: (1-2), naturally cooling just obtains diatomite ferric oxide mixture after will stirring baking oven that thing places 240 ℃ after stir finishing and being incubated 3h;
B. the preparation of iron fiber: to contain Cu be 0.003%-0.09% to percentage by weight, and Sm is 0.003%-0.09%, and all the other are prepared burden for Fe, and raw material places fusing in the riser pipe that has heating unit and forms iron alloy liquid; Temperature of fusion is 1560-1580 ℃; Alloy liquid contacts with the water-cooled copper alloy runner flange of rotation by riser pipe, and water-cooled copper alloy runner runner flange is extracted alloy liquid, forms the alloy material fiber, and the linear velocity of runner flange is 19-21m/s, and the diameter of iron fiber is 10-45 μ m; Runner is opened the runner water-cooling system before opening and changeing, and the water-cooling system inflow temperature is less than 30 ℃;
C. the iron fiber and the diatomite ferric oxide mixture that with length-to-diameter ratio are 7: 1 are then put into the cavity formation mixture precast body that the bottom leads to the water cooled steel molding jig of vacuum system, the weight percent that iron fiber accounts for diatomite ferric oxide mixture is 2%, and control mixture precast body accounts for the 45-50% of metal die cavity volume; Open the water-cooling system of steel die, the control inflow temperature is 20-30 ℃;
D. the preparation of copper alloy liquid: with weight percentage Al is 3%～5%, and Ti is 0.01%～0.05%, and Sn is 0.5%-1%, and Nd is 0.005%-0.01%, and all the other are the raw material of Cu, is fused into alloy liquid under 1280-1320 ℃ of temperature;
E. open vacuum system, the relative vacuum degree of controlling in the above-mentioned steel die is-30Kpa, with above-mentioned copper alloy liquid pour into the pre-body of mixture in the steel die cavity above, copper alloy liquid infiltrates the gap in the mixture precast body under the vacuum pressure effect, alloy liquid solidifies at the mould internal cooling, forms the copper alloy based diatomite, pumice ferric oxide composite material.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1715458A (en) * | 2004-06-30 | 2006-01-04 | 中南大学 | Aliminium base wave absorbing material and preparing method |
| CN101003885A (en) * | 2007-01-19 | 2007-07-25 | 哈尔滨工业大学 | Composite building block of fiber enhanced intermetallic compound, and preparation method |
| CN101440439A (en) * | 2008-11-26 | 2009-05-27 | 华南理工大学 | Preparation of particle reinforced damping porous nickel-titanium memory alloy based composite material |
| CN101546610A (en) * | 2009-05-06 | 2009-09-30 | 哈尔滨工业大学 | Ceramic whisker/ferromagnetic metal composite wave-absorbing material and preparation method thereof |
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- 2010-07-06 CN CN2010102203036A patent/CN101876038B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1715458A (en) * | 2004-06-30 | 2006-01-04 | 中南大学 | Aliminium base wave absorbing material and preparing method |
| CN101003885A (en) * | 2007-01-19 | 2007-07-25 | 哈尔滨工业大学 | Composite building block of fiber enhanced intermetallic compound, and preparation method |
| CN101440439A (en) * | 2008-11-26 | 2009-05-27 | 华南理工大学 | Preparation of particle reinforced damping porous nickel-titanium memory alloy based composite material |
| CN101546610A (en) * | 2009-05-06 | 2009-09-30 | 哈尔滨工业大学 | Ceramic whisker/ferromagnetic metal composite wave-absorbing material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 《矿业快报》 20080531 俞金燕 等 制备负载型纳米TiO2的研究进展 17-20 1-2 , 第5期 2 * |
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Effective date of registration: 20151211 Address after: 225732 Jiangsu city of Taizhou province Xinghua City duo Zhen Industrial Zone di Patentee after: XINGHUA XINGCHENG COPPER CO., LTD. Address before: 210044 Nanjing City, Pukou Province, Nanjing Road, No. 219, No. six, No. Patentee before: Nanjing University of Information Science and Technology |
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