CN101089417A - Energy absorber of filling deformed foam aluminium and aluminium alloy - Google Patents
Energy absorber of filling deformed foam aluminium and aluminium alloy Download PDFInfo
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- CN101089417A CN101089417A CN 200710024998 CN200710024998A CN101089417A CN 101089417 A CN101089417 A CN 101089417A CN 200710024998 CN200710024998 CN 200710024998 CN 200710024998 A CN200710024998 A CN 200710024998A CN 101089417 A CN101089417 A CN 101089417A
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Abstract
The present invention relates to an energy absorber filled with shaped foam aluminium and aluminium alloy. It is characterized by that it is composed of metal external shell, secondary foamed foam and aluminium alloy shaped component. The porosity of the described secondary foamed aluminium and aluminium alloy shaped component is 50.4%-93.8%, and its pore size is 1-5 mm, so that its energy-absorbing efficiency is high.
Description
One, technical field
The invention belongs to a kind of acceptor of energy, particularly a kind of special-shaped acceptor of energy.
Two, background technique
Prior art:,, realized material lightweight, multifunction, thereby become the focus of current space flight and high technology owing to special pore structure with the surperlight type porous metals that closed-cell aluminum foam is attached most importance to.Because automobiles etc. are civilian and the demand of high-tech sector, foamed aluminium profiled piece, sandwich structure are just becoming the forward position in the foam metal preparation field, wherein closed-cell aluminum foam is reported as power absorption is existing, and existing foamed aluminium material is in as acceptor of energy, its energy absorption efficiency is about 60%, and meeting produces chip in its absorption energy process, may destroy packing, cause injury to personnel, also can have a negative impact the safe operation of electronic circuit on every side.Adopt the acceptor of energy of integral foam aluminium material manufacturing at present, its shape is because preparation process's restriction, more single, not high to the abnormally-structured applicability that needs protection, often be subjected to all restrictions, particularly to the bulky part protection, the preparation of integral foam aluminum alloy material is difficulty very, and adopt the method for splicing, just cause energy-absorbing effect to reduce; Adopt the acceptor of energy of secondary foam aluminum alloy profiled piece, absorption efficiency can be improved more than 10%, satisfy the power absorption of various high-tech sectors and use.
Three, summary of the invention
Technical problem to be solved by this invention is: a kind of energy-absorbing efficient height is provided, does not produce chip, can satisfies the especially big impact energy of absorption, need the filling deformed foam aluminium of large-sized special-shaped requirement and the acceptor of energy of aluminum alloy.
Technical solution of the present invention is: the acceptor of energy of a kind of filling deformed foam aluminium and aluminum alloy, form by metal shell and secondary foam aluminium and aluminum alloy profiled piece, described secondary foam aluminium and aluminum alloy profiled piece are that porosity ratio changes the secondary foam aluminium of aperture 1～5mm and aluminum alloy profiled piece 50.4%～93.8%.Secondary foam aluminium and aluminum alloy profiled piece are spherical, cylindrical.The packing density V of secondary foam aluminium and aluminum alloy profiled piece
Foamed aluminium/ V
Housing30.0%～95.0%.The size of secondary foam aluminium and aluminum alloy profiled piece is at 3～50mm.
The present invention obtains following technique effect:
1, the present invention adopts aluminium and aluminum alloy as the spherical parts of the different-diameter of body material and the filling members such as cylinder of different sizes, can adopt different packing densities in special-shaped housing, to pile up according to energy-absorbing requirement and environment, the special-shaped acceptor of energy quality of making is lighter, and energy-absorbing efficient improves more than 10% than integral foam aluminium.Three curves are respectively that averag density is 0.6g/cm among Fig. 1
3Integral foam aluminium, the foamed aluminium ball is piled up and the strain-energy-absorbing efficiency response curve of hollow baton round.Wherein all to adopt diameter be that the bead of 3-5mm is as compression performance experiment for foam aluminium alloy ball and baton round.(1) integral foam aluminium and foamed aluminium ball accumulation strain-energy-absorbing efficiency response curve has comparatively stabilised platform district.They can produce big strain under lower stress level, because its unique compression performance has excellent energy absorptivity and bigger S. E. A..Deformation reaches at 10% o'clock and begins to enter the power absorption platform area when (2) adopting integral foam aluminium, and the energy-absorbing efficient of this moment is 59%; And when deformation quantity reaches 13%, just beginning to enter the power absorption platform area when adopting the foamed aluminium ball to pile up, its energy-absorbing efficient is up to 82%, and is higher than the energy-absorbing efficient of integral foam aluminum alloy, but platform area is short slightly than integral foam aluminium.This is because the two the comprehensive function of the energy-absorbing of gap energy-absorbing that forms when adopting the foamed aluminium ball to pile up and foamed aluminium ball itself.When (3) adopting the accumulation mode of hollow baton round, energy-absorbing efficient moment reaches very high during the strain early period of origination, and deformation quantity reaches 15% back energy-absorbing efficient and sharply descends.Curve shows that impact force can surpass certain value in moment if adopt material such as baton round as package design or personal protection from figure, thereby causes packing to be destroyed and personnel injure.
2, the present invention adopts profiled pieces such as the spherical parts of secondary foam method preparation and cylinder to make filling member, and the method for external application shell parcel is avoided the generation of chip in compression process, guarantee the safety of equipment such as peripheral personnel and electronics.
3, the present invention adopts profiled pieces such as the spherical parts of secondary foam method preparation and cylinder to make filling member, solved the method that prepare abnormal shape and oversize acceptor of energy, can satisfy to absorb especially big impact energy, the requirement that needs are large-sized special-shaped.For the vitals that will protect; methods such as employing welding prepare various large-sized special-shaped hollow box bodies; in casing, fill up the profiled piece such as foam aluminium alloy sphere, cylinder of various sizes and porosity ratio; when under big impact energy effect, pile up compression by special-shaped housing distortion, filling member and turn to the acting in conjunction of three kinds of modes of plastic deformation of closely knit, filling member itself to play the effect of power absorption.
4, the present invention adopts a kind of as housing in aluminium, iron, titanium, copper and the alloy thereof, and shape, the thickness to housing designs simultaneously, can satisfy the energy-absorbing of different demands and use.
5, the present invention adopts a kind of as housing in aluminium, iron, titanium, copper and the alloy thereof, can carry out corrosion protection and processing attractive in appearance, to be adapted to the more application of wide-range.
6, the present invention adopts the profiled pieces such as spherical parts, cylinder of secondary foam method preparation, can adopt aluminium and multiple aluminum alloy as body material, satisfies the energy-absorbing demand of different range.
Four, description of drawings
The deformation of three kinds of porous materials of Fig. 1 and energy-absorbing efficient comparison diagram
Special-shaped filling member (spherical filling member average diameter 23mm, cylindrical filling member average diameter 12mm, high 37mm such as the foam aluminium alloy of Fig. 2 secondary foam preparation is spherical and cylindrical.Mean porosities 73.07%, average pore size 1.7mm).
Fig. 3 is the special-shaped housing of various metallic matrixes, various boundary dimension.
Fig. 4 makes the special-shaped acceptor of energy of filling member for unencapsulated secondary foam aluminum alloy.
Five, embodiment
Embodiment 1
The first step: at first by the secondary foam method, the preparation porosity ratio is 83.8%, average pore size 1.7mm, and average diameter is the foam aluminium alloy spherical parts of 12mm, obtains filling member;
Second step: employing thickness is 3mm, and diameter is that the aluminum pipe of 10mm is made housing, and secondary foam aluminum alloy filling member is finished accumulation in housing, and its packing density is 73.5%;
The 3rd step: the method by welding seals aluminum pipe inner foam filling member, makes special-shaped acceptor of energy.
The 4th step: special-shaped acceptor of energy is carried out anti-corrosion treatment.
Embodiment 2
The first step: at first by the secondary foam method, the preparation porosity ratio is 75.8%, average pore size 1.7mm, and average diameter is the foam aluminium alloy spherical parts of 23mm, obtains filling member;
Second step: employing thickness is 2mm, and diameter is that the stainless steel right-angle elbow pipe of 90mm is made housing, and secondary foam aluminum alloy filling member is finished accumulation in housing, and its packing density is 65.3%;
The 3rd step: the method by welding seals stainless steel right-angle elbow pipe inner foam filling member, makes special-shaped acceptor of energy.
The 4th step: special-shaped acceptor of energy is carried out anti-corrosion treatment.
Embodiment 3
The first step: at first by the secondary foam method, the preparation porosity ratio is 50.4%, average pore size 1.0mm, and average diameter is the foam aluminium alloy spherical parts of 23mm, obtains filling member;
Second step: employing thickness is 2mm, and diameter is that the stainless steel right-angle elbow pipe of 90mm is made housing, and secondary foam aluminum alloy filling member is finished accumulation in housing, and its packing density is 30.0%;
The 3rd step: the method by welding seals stainless steel right-angle elbow pipe inner foam filling member, makes special-shaped acceptor of energy.
The 4th step: special-shaped acceptor of energy is carried out anti-corrosion treatment.
Embodiment 4
The first step: at first by the secondary foam method, the preparation porosity ratio is 93.8%, average pore size 5.0mm, and average diameter is the foam aluminium alloy spherical parts of 23mm, obtains filling member;
Second step: employing thickness is 2mm, and diameter is that the stainless steel right-angle elbow pipe of 90mm is made housing, and secondary foam aluminum alloy filling member is finished accumulation in housing, and its packing density is 95.0%;
The 3rd step: the method by welding seals stainless steel right-angle elbow pipe inner foam filling member, makes special-shaped acceptor of energy.
The 4th step: special-shaped acceptor of energy is carried out anti-corrosion treatment.
Claims (4)
1. the acceptor of energy of filling deformed foam aluminium and aluminum alloy, it is characterized in that forming by metal shell and secondary foam aluminium and aluminum alloy profiled piece, described secondary foam aluminium and aluminum alloy profiled piece are that porosity ratio changes the secondary foam aluminium of aperture 1～5mm and aluminum alloy profiled piece 50.4%～93.8%.
2. the acceptor of energy of a kind of filling deformed foam aluminium according to claim 1 and aluminum alloy is characterized in that described secondary foam aluminium and aluminum alloy profiled piece are for spherical, cylindrical.
3. the acceptor of energy of a kind of filling deformed foam aluminium according to claim 1 and aluminum alloy is characterized in that the packing density V of secondary foam aluminium and aluminum alloy profiled piece
Foamed aluminium/ V
Housing30.0%～95.0%.
4. the acceptor of energy of a kind of filling deformed foam aluminium according to claim 1 and aluminum alloy, the size that it is characterized in that secondary foam aluminium and aluminum alloy profiled piece is at 3～50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710024998 CN101089417A (en) | 2007-07-17 | 2007-07-17 | Energy absorber of filling deformed foam aluminium and aluminium alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710024998 CN101089417A (en) | 2007-07-17 | 2007-07-17 | Energy absorber of filling deformed foam aluminium and aluminium alloy |
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| Publication Number | Publication Date |
|---|---|
| CN101089417A true CN101089417A (en) | 2007-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710024998 Pending CN101089417A (en) | 2007-07-17 | 2007-07-17 | Energy absorber of filling deformed foam aluminium and aluminium alloy |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101215650B (en) * | 2008-01-04 | 2010-11-24 | 昆明理工大学 | Method for preparing aluminum-steel-high pressure gas-phase composite foam material |
| CN102658808A (en) * | 2012-05-21 | 2012-09-12 | 湖南大学 | Split welding type car door anti-collision beam |
-
2007
- 2007-07-17 CN CN 200710024998 patent/CN101089417A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101215650B (en) * | 2008-01-04 | 2010-11-24 | 昆明理工大学 | Method for preparing aluminum-steel-high pressure gas-phase composite foam material |
| CN102658808A (en) * | 2012-05-21 | 2012-09-12 | 湖南大学 | Split welding type car door anti-collision beam |
| CN102658808B (en) * | 2012-05-21 | 2014-07-02 | 湖南大学 | Split welding type car door anti-collision beam |
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