CN100427623C - Method for preparing polymer/foam zinc-aluminium alloy composite material - Google Patents
Method for preparing polymer/foam zinc-aluminium alloy composite material Download PDFInfo
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- CN100427623C CN100427623C CNB2006101047689A CN200610104768A CN100427623C CN 100427623 C CN100427623 C CN 100427623C CN B2006101047689 A CNB2006101047689 A CN B2006101047689A CN 200610104768 A CN200610104768 A CN 200610104768A CN 100427623 C CN100427623 C CN 100427623C
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Abstract
The invention discloses a manufacturing method for polymer/ foam allumen composite material. It includes the following steps: making foam allumen, and infiltrating high molecular material into the holes of allumen. The invention sharply improves the damping performance comparing with single identity allumen orsingle foam allumen.
Description
Technical field
The invention belongs to the metal-base composites technical field, be specifically related to the preparation method of the matrix material of a kind of foam zinc-aluminium alloy and macromolecular material formation.
Background technology
Vibration and noise not only influence the precision and the life-span of machine, and the meeting aggravating working environment, influence people's health, make people tired, tinnitus, severe patient even disablement.Adopting high damping material is to solve one of vibration and the highly effective means of noise problem.Polymer viscoelastic material has excellent damping capacity, but intensity is relatively poor; And foam metal material not only has good intensity, and have a damping capacity preferably, if, give full play to two kinds of materials advantage separately with both composition matrix materials that is combined with each other, can develop a kind of compound damping material, so that better solve vibration and noise problem.
Summary of the invention
The preparation method who the purpose of this invention is to provide a kind of polymer/foam zinc-aluminium alloy composite material, the polymer/foam zinc-aluminium alloy composite material that utilizes this method to prepare, solved the problem of existing damping material list damper mechanism, its damping capacity is improved greatly.
The technical solution adopted in the present invention is, the preparation method of polymer/foam zinc-aluminium alloy composite material at first prepares foam zinc-aluminium alloy, infiltrates macromolecular material by compound method of impregnation in the hole of the foam zinc-aluminium alloy that makes then, this method may further comprise the steps
At first prepare foam zinc-aluminium alloy;
Then with macromolecular material 150 ℃～200 ℃ following heat fused, be incubated 15～30 minutes, the above-mentioned foam zinc-aluminium alloy that makes is impregnated in the liquid macromolecular material, heated 3～10 minutes, cooling then, when temperature is reduced to 40 ℃～100 ℃, take out air cooling, promptly obtain polymer/foam zinc-aluminium alloy composite material.
Characteristics of the present invention also are,
Described macromolecular material is rosin or paraffin.
The preparation foam zinc-aluminium alloy is to adopt negative pressure casting method, and this method may further comprise the steps,
A. with industrial table salt thawing, the water treatment of decrystallizing, after solidifying it is broken into particle, places ball mill to carry out ball milling, sieve into the particle that particle diameter is 0.1～1.0mm then;
B. prepare aluminium zinc solution, control aluminium zinc melt permeating temperature is 450 ℃～550 ℃;
C. pour the salt particle after the above-mentioned processing in mould consolidation, 450 ℃～550 ℃ interval preheatings, the end that salt particulate mould is housed is inserted in the above-mentioned aluminium zinc melt, the other end of mould is connected with vacuum tank by valve tube, vacuumize the vacuum tightness that makes vacuum tank reach-0.01～-0.08Mpa, make aluminium zinc melt seepage flow 10～40 seconds under negative pressure;
D. treat that seepage flow finishes, after aluminium zinc solidifies, take out the complex body of salt particle and aluminium zinc, remove the salt particle, promptly obtain foam zinc-aluminium alloy.
The rotating speed of described ball mill is controlled to be 50 rev/mins, and ratio of grinding media to material is 1: 10, and sphere diameter is 6mm, 1～2 hour ball milling time.
Preparation method of the present invention utilizes the aluminium zinc matrix itself to have higher damping capacity, from the preparation foam zinc-aluminium alloy, compound with viscoelastic material again, prepare polymer/foam metal advanced composite material-foam zinc-aluminium alloy composite material, form the stack of multiple damper mechanisms such as complex phase damping, structural damping and viscoelastic damping, the damping capacity of material is improved greatly.
Description of drawings
Fig. 1 is a preparation method's of the present invention schematic flow sheet;
Fig. 2 provides the negative pressure device synoptic diagram that adopts in a kind of the inventive method.
Among the figure, 1. vacuum pump, 2. vacuum tank, 3. resistance furnace, 4. tensimeter, 5. valve, 6. valve tube, 7. mould.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
The preparation method of polymer/foam zinc-aluminium alloy composite material of the present invention, at first obtain foam zinc-aluminium alloy with prior art for preparing, the preparation method has casting, powder metallurgic method, metal deposition, sintering process, molten metal foaming and eutectic directional solidification method etc., utilize the infiltration method that macromolecular materials such as rosin, paraffin are infiltrated in the foamed metal hole again, obtain polymer/foam zinc-aluminium alloy composite material.
Fig. 2 provides a kind of the inventive method employed negative pressure seepage apparatus, during work, vacuum pump 1 is opened, vacuum tank 2 is vacuumized, control the vacuum tightness of vacuum tank 2 by valve 5 and vacuum pressure gauge 4, after meeting the requirements of vacuum tightness, mould 7 is connected to vacuum tank 2 by valve tube 6, an end of filling salt on the mould 7 inserts under the constant negative pressure in the molten metal of resistance furnace 3 and begins seepage flow.
At first prepare foam zinc-aluminium alloy with the negative pressure seepage apparatus that Fig. 2 provides with negative pressure casting method, again rosin or paraffin infiltrated in the metal hole of foam zinc-aluminium alloy, obtain polymer/foam zinc-aluminium alloy composite material the present invention is described:
As shown in Figure 1, aluminium zinc is heated to fusing, keeping this aluminium zinc melt temperature is 450 ℃～550 ℃; Filler salt is melted, decrystallizes pre-treatment such as water, fragmentation, ball milling, screening, the consolidation in the mould of packing into after the processing, and the mould that filler salt is housed carried out 450 ℃～550 ℃ following preheatings, then the mould that filler is housed is inserted in the above-mentioned aluminium zinc melt and carries out negative pressure seepage flow, Seepage flow time 10～40 seconds; Seepage flow finishes, treat that aluminium zinc solidifies after, take out the complex body of filler and aluminium zinc, remove filler, can obtain the aperture is that 0.1～1.0mm, porosity are 60%～90% foam zinc-aluminium alloy; With macromolecular material such as rosin or paraffin 150 ℃～200 ℃ following heat fused, be incubated 15～30 minutes, foam zinc-aluminium alloy is impregnated in the liquid rosin or paraffin, heat after 3～10 minutes, outage cooling then, when temperature is reduced to 40 ℃～100 ℃, take out air cooling, promptly obtain polymer/foam zinc-aluminium alloy composite material.
155g aluminium block and 419g spelter are prepared the Zn-27%Al foam zinc-aluminium alloy with the routine casting method; Rosin 150 ℃ of following heat fused, is incubated 15 minutes, the above-mentioned foam zinc-aluminium alloy that makes is impregnated in the liquid rosin, heat after 10 minutes, the outage cooling is when temperature is reduced to 100 ℃, take out air cooling, promptly obtain polymer/foam zinc-aluminium alloy composite material.
96.5g aluminium block and 342g spelter are prepared the Zn-22%Al foam zinc-aluminium alloy with powder metallurgic method; Paraffin 200 ℃ of following heat fused, is incubated 30 minutes, foam zinc-aluminium alloy is impregnated in the liquid paraffin, heated 3 minutes, outage cooling then when temperature is reduced to 40 ℃, is taken out air cooling, promptly obtains polymer/foam zinc-aluminium alloy composite material.
Embodiment 3
The 155g aluminium block is put into crucible, be heated to fusing in resistance furnace, the 419g spelter is joined in the crucible again, prepare the Zn-27%Al alloy solution, keeping Zn-27%Al alloy melt temperature is 550 ℃; Salt melt, decrystallize water, fragmentation, sieve into the salt 21g that diameter is 0.1mm, with consolidation in its mould of packing into, and to mould that salt is housed in 550 ℃ of following preheatings, insulation, mould is connected in the negative pressure seepage apparatus, then mould is inserted in the alloy melt, make its seepage flow 40 seconds under negative pressure, after treating alloy graining, remove the salt filler, can obtain quality is 39g, and the aperture is 0.1mm, the porosity Φ 20mm * 65mm through-hole foam Zn-27%Al alloy more than 80%; Rosin is placed on electric furnace, is heated to 200 ℃ in the crucible, be incubated after 20 minutes, the above-mentioned foam Zn-27%Al alloy infiltration that makes is gone in the liquid rosin, and then heated 5 minutes, the outage cooling when temperature is reduced to 80 ℃, is taken out air cooling, take out foam Zn-27%Al alloy, promptly get and fill rosiny foam Zn-27%Al alloy composite materials.This experiment condition of table 1 is the damping capacity parameter comparison of the different materials of the aluminium content 27% of preparation down:
Embodiment 4
The 96.5g aluminium block is put into crucible, be heated to fusing in resistance furnace, the 342g spelter is joined in the crucible again, prepare the Zn-22%Al alloy solution, keeping Zn-22%Al alloy melt seepage flow temperature is 500 ℃; Salt melt, decrystallize water, fragmentation, ball milling, sieve into the salt 20g that diameter is 0.5mm, in its mould of packing into, to mould that salt is housed in 450 ℃ of following preheatings, insulation, mould is inserted in the above-mentioned alloy melt, seepage flow carried out 20 seconds, treat alloy graining after, remove the salt filler, can obtain quality is 40g, and the aperture is 0.5mm, the porosity Φ 20mm * 65mm through-hole foam Zn-22%Al alloy more than 80%; Paraffin is placed on electric furnace, is heated to 150 ℃ in the crucible, be incubated after 15 minutes, the above-mentioned foam Zn-22%Al alloy infiltration for preparing is gone in the liquid paraffin, foam Zn-22%Al alloy and paraffin complete wetting, heated 3 minutes, the outage cooling is when temperature is reduced to 40 ℃, take out air cooling, promptly get the foam Zn-22%Al alloy composite materials of filling paraffin.
This experiment condition of table 2 is the damping capacity parameter comparison of the different materials of the aluminium content 22% of preparation down:
Embodiment 5
The 29.1g aluminium block is put into crucible, be heated to fusing in resistance furnace, the 553g spelter is joined in the crucible again, prepare the Zn-5%Al alloy solution, keeping Zn-5%Al alloy melt seepage flow temperature is 450 ℃; Salt melt, decrystallize water, fragmentation, ball milling, sieve into the salt 18g that diameter is 1.0mm, in its mould of packing into, to the mould of salt be housed in 500 ℃ of following preheatings, insulation, mould is inserted in the above-mentioned alloy melt, seepage flow carried out 10 seconds, treat the Zn-5%Al alloy graining after, remove filler, can obtain quality 46g, the aperture is 1.0mm, the porosity through-hole foam Zn-5%Al alloy more than 80%; Rosin is placed on electric furnace, is heated to 200 ℃ in the crucible, be incubated after 30 minutes, the above-mentioned foam Zn-5%Al alloy infiltration that makes is gone in the liquid rosin, foam Zn-5%Al alloy and rosin complete wetting, heated 10 minutes, the outage cooling is when temperature is reduced to 100 ℃, take out air cooling, promptly get and fill rosiny foam Zn-5%Al alloy composite materials.
This experiment condition of table 3 is the damping capacity parameter comparison of the different materials of the aluminium content 5% of preparation down:
From above three tables as can be seen, the damping capacity of matrix material is than high two orders of magnitude of solid material, than the high order of magnitude of foamed metal.
Claims (1)
1. the preparation method of a polymer/foam zinc-aluminium alloy composite material at first prepares foam zinc-aluminium alloy, infiltrates macromolecular material by compound method of impregnation in the hole of the foam zinc-aluminium alloy that makes then, it is characterized in that, this method may further comprise the steps,
At first, prepare foam zinc-aluminium alloy:
A. with industrial table salt thawing, the water treatment of decrystallizing, after solidifying it is broken into particle, places ball mill to carry out ball milling, the rotating speed of ball mill is controlled to be 50 rev/mins, and ratio of grinding media to material is 1: 10, and sphere diameter is 6mm, 1～2 hour ball milling time, sieve into the particle that particle diameter is 0.1～1.0mm then;
B. prepare aluminium zinc solution, control aluminium zinc melt permeating temperature is 450 ℃～550 ℃;
C. pour the salt particle after the above-mentioned processing in mould consolidation, 450 ℃～550 ℃ interval preheatings, the end that salt particulate mould is housed is inserted in the above-mentioned aluminium zinc melt, the other end of mould is connected with vacuum tank by valve tube, vacuumize the vacuum tightness that makes vacuum tank reach-0.01～-0.08MPa, make aluminium zinc melt seepage flow 10～40 seconds under negative pressure;
D. treat that seepage flow finishes, after aluminium zinc solidifies, take out the complex body of salt particle and aluminium zinc, remove the salt particle, promptly obtain foam zinc-aluminium alloy,
Then, with macromolecular material 150 ℃～200 ℃ following heat fused, be incubated 15～30 minutes, the above-mentioned foam zinc-aluminium alloy that makes is impregnated in the liquid macromolecular material, heated 3～10 minutes, cooling then is when temperature is reduced to 40 ℃～100 ℃, take out air cooling, promptly obtain polymer/foam zinc-aluminium alloy composite material.
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| CN103935080B (en) * | 2014-03-28 | 2015-11-18 | 燕山大学 | The one-piece type composite laminboard of polymer/foam aluminium |
| CN104775534A (en) * | 2015-02-27 | 2015-07-15 | 东南大学 | Vibration-reducing and energy-consuming column device of assembled foamed aluminum composite material |
| CN108193070A (en) * | 2018-02-05 | 2018-06-22 | 南通鑫祥锌业有限公司 | A kind of negative pressure casting method for preparing foam zinc-aluminium alloy |
| CN109277571B (en) * | 2018-09-25 | 2020-11-06 | 中南大学 | Copper-aluminum-manganese alloy/polymer/carbon nanotube damping material and preparation method thereof |
| CN112276091B (en) * | 2020-10-29 | 2022-01-28 | 西北有色金属研究院 | Preparation process of low-cost titanium-based porous material with high energy absorption characteristic |
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| CN1096544A (en) * | 1993-06-19 | 1994-12-21 | 东南大学 | The infiltration analogue method for making of metal-base composites and porous metal |
| CN1480542A (en) * | 2002-09-02 | 2004-03-10 | 北京有色金属研究总院 | Porous body of composite metal and its preparing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1096544A (en) * | 1993-06-19 | 1994-12-21 | 东南大学 | The infiltration analogue method for making of metal-base composites and porous metal |
| CN1480542A (en) * | 2002-09-02 | 2004-03-10 | 北京有色金属研究总院 | Porous body of composite metal and its preparing method |
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