CN106863948B - A kind of tubulose composite construction core sandwich plate and preparation method thereof - Google Patents
A kind of tubulose composite construction core sandwich plate and preparation method thereof Download PDFInfo
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- CN106863948B CN106863948B CN201710042625.8A CN201710042625A CN106863948B CN 106863948 B CN106863948 B CN 106863948B CN 201710042625 A CN201710042625 A CN 201710042625A CN 106863948 B CN106863948 B CN 106863948B
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- 238000010276 construction Methods 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
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- 238000004140 cleaning Methods 0.000 claims description 9
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 7
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- 229910052782 aluminium Inorganic materials 0.000 claims description 7
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- 238000005520 cutting process Methods 0.000 claims description 7
- 230000004907 flux Effects 0.000 claims description 7
- 229910000679 solder Inorganic materials 0.000 claims description 7
- 238000005219 brazing Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 4
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- 230000006835 compression Effects 0.000 abstract description 5
- 238000007906 compression Methods 0.000 abstract description 5
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- 238000011068 loading method Methods 0.000 abstract description 3
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- 238000000429 assembly Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 59
- 239000011162 core material Substances 0.000 description 42
- 235000010210 aluminium Nutrition 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 238000005476 soldering Methods 0.000 description 5
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/0002—Soldering by means of dipping in a fused salt bath
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/002—Soldering by means of induction heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/008—Soldering within a furnace
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
- B23K1/203—Fluxing, i.e. applying flux onto surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
- B23K1/206—Cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/18—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side
- B32B3/20—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side of hollow pieces, e.g. tubes; of pieces with channels or cavities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention discloses a kind of tubulose composite construction core sandwich plates and preparation method thereof, it from top to bottom include top panel, second layer straight tube component, inclined tube, first layer straight tube component and lower panel, second layer straight tube component and first layer straight tube component are laid with by several straight tubes respectively, the straight tube of second layer straight tube component is arranged along the vertical direction, the straight tube of first layer straight tube component is horizontally disposed, inclined tube is arranged between second layer straight tube component and first layer straight tube component, forms tubulose composite construction core.The parallelogram inclined tube that the orthogonal trapezoidal straight tube of the present invention and edge are inserted in orthogonal trapezoidal straight tube gap assemblies antiknock endergonic structure core, four inclined tubes form the pyramid hollow pipe lattice structure mutually supported in the core, have excellent face external compression performance；In addition the orthogonal trapezoidal straight tube in core provides stable inplane shear drag when sandwich is by Explosion Loading outside face, can effectively improve overall structure explosion-and-knock resistant performance.
Description
[technical field]
The invention belongs to ultra light porous metal field of material technology, and in particular to a kind of tubulose composite construction core sandwich plate
And preparation method thereof, especially a kind of three-dimensional lattice core sandwich material for having antiknock function.
[background technique]
Lattice material makes it have excellent mechanical property because of the particularity of its micro-structure.By nearly research in 20 years, point
Battle array material is widely applied in space flight, aviation, navigation and the design of land transportation means of transport.In practical application
In, the capability of antidetonance is to measure one of the important indicator of lattice core sandwich dynamic mechanical.Through domestic and international researcher
System research discovery, the capability of antidetonance of cellular-core dot matrix sandwich is better than cores such as ripple, pyramids.It is inhaling
During receiving explosion wave, sandwich is by the bending of panel, stretching and destruction and the compression of core and cuts
Shear deformation absorbs energy.Since shear-deformable, the destruction of legacy cellular core and panel junction can occur under blast load
Often become and restricts the main restricting factor that the structure overall mechanical properties play.
[summary of the invention]
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of convenient for assembly
The three-dimensional lattice sandwich structure with the excellent capability of antidetonance of connection.Can both it be increased and plate contact face using trapezoidal straight tube
Product improves bonding strength, and sandwich in-plane shear strength can be improved.At the same time, using by parallelogram inclined tube
It is inserted into trapezoidal straight tube gap, core stability can be enhanced, and sandwich face external compression intensity can be improved.
The invention adopts the following technical scheme:
A kind of tubulose composite construction core sandwich plate, be provided with from top to bottom top panel, second layer straight tube component, inclined tube,
First layer straight tube component and lower panel, the second layer straight tube component and first layer straight tube component be laid with respectively by several straight tubes and
At the straight tube of the second layer straight tube component is horizontally disposed, and the straight tube of the first layer straight tube component is along with described the
Orthogonal horizontally arranged of the straight tube of two layers of straight tube component, the inclined tube are arranged in the second layer straight tube component and first layer
Between straight tube component, the tubulose composite construction core is formed.
Further, the cross section of the straight tube is isosceles trapezoid, several straight tube spaced sets.
Further, the cross section of the inclined tube is parallelogram, and four inclined tubes form the golden word mutually supported
Tower hollow pipe lattice structure.
Further, the tubulose composite construction core sandwich plate is by carbon steel, stainless steel, fine aluminium, aluminium alloy or titanium alloy
In any material be prepared.
A kind of tubulose composite construction core sandwich plate preparation method, comprising the following steps:
S1, first by the plate cutting of smooth mistake at top panel and lower panel；
S2, ladder-shaped tubular material is cut into trapezoidal straight tube respectively again, it is oblique that parallelogram tubing is cut into parallelogram
Pipe；
S3, it then top panel, lower panel, straight tube and inclined tube described in step S1 and S2 is put into dryer is dried for standby；
S4, by multiple straight tubes by setting spacing assembled side-by-side formed first layer straight tube component, and adjacent two straight tube it
Between be in mutual handstand arrangement mode；
S5, the first layer straight tube component upper surface described in step S4 are constituted by the multiple straight tubes of setting spacing positive quadraturing laying
Second layer straight tube component, and be in handstand arrangement mode between adjacent two straight tube；
First layer straight tube component and second layer straight tube component described in S6, the inclined tube inserting step S5 for preparing step S3
Gap in, form the tubulose composite construction core closely arranged；
The top panel and lower panel of S7, the tubulose composite construction core prepared by step S6 and step S3 preparation
Tubulose compound core body sandwich plate is made in connection.
Further, in step S1, the thickness of the top panel 1 and lower panel 4 is differed.
Further, in step S3, the top panel, lower panel, straight tube and inclined tube are put into supersonic wave cleaning machine, protected
40~60 DEG C of water holding temperature, 0.5~1h of cleaning carries out drying and processing after removing surface attachments again.
Further, in step S7, in the contact surface of the straight tube and straight tube, the contact surface of straight tube and inclined tube and straight
Pipe, inclined tube and upper and lower panel contact surface uniformly smear solder flux, using vacuum brazing, induction brazing or salt bath brazing will be described on
Panel, tubulose composite construction core and lower panel link into an integrated entity.
Compared with prior art, the present invention at least has the advantages that
The present invention provides a kind of tubulose composite construction core sandwich plate, mutual by using between top panel and lower panel
Orthogonal first layer straight tube component and second layer straight tube component enhances the bonding strength of core and panel, and then improves interlayer knot
20% or more the in-plane shear strength and 20% or more face external compression intensity of structure, the final synthesis anti-knock properties for improving sandwich
Energy.
Further, orthogonal trapezoidal straight tube is provided and is cut in stable face when sandwich is by Explosion Loading outside face
Drag is cut, overall structure explosion-and-knock resistant performance can be effectively improved.
Further, four inclined tubes form the pyramid hollow pipe lattice structure mutually supported in core, have excellent
Face external compression performance.
Further, which selects the metals such as carbon steel, stainless steel, fine aluminium, aluminium alloy or titanium alloy as base material, significantly
The preparation difficulty of structure is reduced, while improving the corrosion resistance and stability of structure.
Invention additionally discloses a kind of tubulose composite construction core sandwich plate preparation methods, are formed two layers with orthogonal trapezoidal straight tube
Straight tube component, and inlay slotting parallelogram inclined tube in the gap between two layers of straight tube component and assembly antiknock endergonic structure core
Body, operating method is simple, structure and reliable preparation process, is suitable for vehicle by the lightning protection antiknock demand under strong dynamic load.
Further, the thickness of upper and lower panel differs, can further core sandwich mechanical characteristic.
Further, the present invention carries out the welding of upper and lower panel and core, this method operation letter using Vacuum Soldering Technology
Just, technology maturation, panel and core bonding strength are high.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
[Detailed description of the invention]
Fig. 1 is the orthogonal laddertron assembling schematic diagram of the present invention；
Fig. 2 is laddertron core assembling schematic diagram of the present invention；
Fig. 3 is laddertron core sandwich schematic diagram of the present invention；
Fig. 4 is laddertron core sandwich plate general assembly drawing of the present invention.
Wherein: 1. top panels；2. second layer straight tube component；3. inclined tube；4. first layer straight tube component；5. lower panel.
[specific embodiment]
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Shown in please referring to Fig.1 to Fig.4, the invention discloses a kind of tubulose composite construction core sandwich plates, wrap from top to bottom
Include top panel 1, second layer straight tube component 2, inclined tube 3, first layer straight tube component 4 and lower panel 5, the second layer straight tube component 2
It is laid with respectively by several straight tubes with first layer straight tube component 4, the straight tube of the second layer straight tube component 2 is set in the horizontal direction
Set, the straight tube of the first layer straight tube component 4 along orthogonal with the straight tube of the second layer straight tube component 2 horizontally arranged,
The inclined tube 3 is arranged between the second layer straight tube component 2 and first layer straight tube component 4, forms the tubulose composite construction
Core.
Wherein, the cross section of straight tube is isosceles trapezoid, several straight tube spaced sets.The cross section of inclined tube 3 is flat
Row quadrangle, four inclined tubes 3 form the pyramid hollow pipe lattice structure mutually supported.Tubulose composite construction core interlayer
Plate is prepared by any material in carbon steel, stainless steel, fine aluminium, aluminium alloy or titanium alloy.
The invention also discloses a kind of tubulose composite construction core sandwich plate preparation methods, comprising the following steps:
S1, first by the plate cutting of smooth mistake at top panel and lower panel；
The thickness of the top panel 1 and lower panel 4 differs.
S2, tubing is cut into trapezoidal straight tube and parallelogram inclined tube again；
S3, it then top panel, lower panel, straight tube and inclined tube described in step S1 and S2 is put into dryer is dried for standby；
The top panel, lower panel, straight tube and inclined tube are put into supersonic wave cleaning machine, 40~60 DEG C of water temperature of holding, clearly
Drying and processing is carried out again after washing 0.5~1h removal surface attachments.
S4, by multiple straight tubes by setting spacing assembled side-by-side formed first layer straight tube component, and adjacent two straight tube it
Between be in mutual handstand arrangement mode；
S5, the first layer straight tube component upper surface described in step S4 are constituted by the multiple straight tubes of setting spacing positive quadraturing laying
Second layer straight tube component, and be in handstand arrangement mode between adjacent two straight tube；
First layer straight tube component and second layer straight tube component described in S6, the inclined tube inserting step S5 for preparing step S3
Gap in, form the tubulose composite construction core closely arranged；
The top panel and lower panel of S7, the tubulose composite construction core prepared by step S6 and step S3 preparation
Tubulose compound core body sandwich plate is made in connection.
Embodiment one:
1, use wire cutting machine cutting at top panel 1 and lower panel 5 the TC4 titanium alloy plate of smooth mistake first；
2, top panel 1, lower panel 5, the trapezoidal straight tube of TC4 titanium alloy and 3 surface of TC4 titanium alloy parallelogram inclined tube are used
The sand paper polishing removal surface film oxide of different model；
3, top panel 1, lower panel 5, trapezoidal straight tube and parallelogram inclined tube 3 are put into supersonic wave cleaning machine, are added
Metal cleaner, adjusting water temperature is 60 DEG C, and cleaning half an hour removes surface attachments；
4, top panel 1, lower panel 5, trapezoidal straight tube and parallelogram inclined tube 3 are put into dryer and are dried for standby；
5, trapezoidal straight tube is formed into the trapezoidal straight tube component 4 of first layer by its section neutrality line length assembled side-by-side；
6, the second layer is laid with by trapezoidal straight tube cross-sectional neutrality line length orthogonal in the upper surface of the trapezoidal straight tube component 4 of first layer
Trapezoidal straight tube component 2；
7, parallelogram inclined tube 3 is inserted into the gap of two layers of trapezoidal straight tube component, forms laddertron core；
8, in inclined tube 3 and first layer straight tube component 4, the contact surface of second layer straight tube component 2, first layer straight tube component 4, the
Contact surface between two layers of straight tube component 2 uniformly smears Ti base solder flux, first layer straight tube component 4, second layer straight tube component 2,
3 end face of inclined tube is same as the contact surface of top panel 1, lower panel 5 uniformly to smear Ti base solder flux solder flux, will using vacuum solder flux technology
First layer straight tube component 4, second layer straight tube component 2, parallelogram inclined tube 3, top panel 1 and lower panel 5 connect into trapezoidal core
Interlayer body structure.
The soldering: vacuum degree control is 10-2Pa or more rises to 850~960 DEG C of heat preservations from room temperature with 1 DEG C/min speed
30~60min.
Embodiment two:
1, use wire electric discharge wire cutting machine cutting at top panel 1 and lower panel 1060 fine aluminium plates of smooth mistake first
5；
2,1060 fine aluminiums of top panel 1, lower panel 5, the trapezoidal straight tube of 1060 fine aluminiums of extrusion forming and extrusion forming are put down
The sand paper polishing removal surface film oxide and rusty stain of 3 surface different model of row quadrangle inclined tube；
3, top panel 1, lower panel 5, straight tube and parallelogram inclined tube 3 are put into supersonic wave cleaning machine, metal is added
Cleaning agent, adjusting water temperature is 60 DEG C, and cleaning half an hour removes surface attachments；
4, top panel 1, lower panel 5, straight tube and parallelogram inclined tube 3 are put into dryer and are dried for standby；
5, straight tube is formed into the trapezoidal straight tube component 4 of first layer by the long assembled side-by-side in trapezoidal straight tube cross-sectional upper bottom edge；
6, in the upper surface of the trapezoidal straight tube component 4 of first layer by the long positive quadraturing laying second layer ladder in trapezoidal straight tube cross-sectional upper bottom edge
Shape straight tube component 2；
7, parallelogram inclined tube 3 is inserted into the gap of first layer trapezoidal straight tube component 4 and the trapezoidal straight tube component 2 of the second layer
In, form laddertron core；
8, trapezoidal in inclined tube 3 and contact surface, the second layer of the trapezoidal straight tube component 2 of the second layer, the trapezoidal straight tube component 4 of first layer
Contact surface between straight tube component 2 and the trapezoidal straight tube component 4 of first layer uniformly smears aluminium soldering cream, in the trapezoidal straight tube group of the second layer
The trapezoidal straight tube component 4 of part 2, first layer, 3 end face of inclined tube is same as the contact surface of top panel 1, lower panel 5 uniformly smears aluminium soldering
Cream, using vacuum solder flux technology by the trapezoidal straight tube component 2 of the second layer, the trapezoidal straight tube component 4 of first layer, parallelogram inclined tube 3,
Top panel 1 and lower panel 5 connect into trapezoidal core sandwich.
The soldering: vacuum degree control is 10-3Pa or more rises to 580~620 DEG C of heat preservations from room temperature with 1 DEG C/min speed
10min~1h.
Theoretical according to sandwich plate antiknock, sandwich core is mainly inhaled under Explosion Loading with shearing and stretcher strain
Based on energy.It can be readily formed and be reliably connected between tubular core and panel described in this patent, can guarantee that sandwich plate is becoming
The shearing and stretcher strain effect that core material is given full play to during shape, improve basis material utilization rate.Speculate accordingly, this knot
Structure will have very high than energy absorption characteristics, be suitble to be applied under the operating conditions of intense dynamic loads such as explosion.
The above content is merely illustrative of the invention's technical idea, and this does not limit the scope of protection of the present invention, all to press
According to technical idea proposed by the present invention, any changes made on the basis of the technical scheme each falls within claims of the present invention
Protection scope within.
Claims (6)
1. a kind of tubulose composite construction core sandwich plate, it is characterised in that: it is straight to be provided with top panel (1), the second layer from top to bottom
Tube assembly (2), inclined tube (3), first layer straight tube component (4) and lower panel (5), the second layer straight tube component (2) and first layer
Straight tube component (4) is laid with by several straight tubes respectively, and the straight tube of the second layer straight tube component (2) is horizontally disposed,
The straight tube of the first layer straight tube component (4) along orthogonal with the straight tube of the second layer straight tube component (2) horizontally arranged,
The inclined tube (3) is arranged between the second layer straight tube component (2) and first layer straight tube component (4), and it is multiple to form the tubulose
Structural core is closed, the cross section of the straight tube is isosceles trapezoid, and several straight tube spaced sets press setting spacing group side by side
Dress forms first layer straight tube component, and is in mutual handstand arrangement mode between adjacent two straight tube, and the cross section of the inclined tube (3) is
Parallelogram, four inclined tubes (3) form the pyramid hollow pipe lattice structure mutually supported.
2. a kind of tubulose composite construction core sandwich plate according to claim 1, it is characterised in that: the tubulose composite junction
Structure core sandwich plate is prepared by any material in carbon steel, stainless steel, fine aluminium, aluminium alloy or titanium alloy.
3. a kind of method for preparing tubulose composite construction core sandwich plate as claimed in claim 1 or 2, which is characterized in that including
Following steps:
S1, first by the plate cutting of smooth mistake at top panel and lower panel；
S2, ladder-shaped tubular material is cut into trapezoidal straight tube respectively again, parallelogram tubing is cut into parallelogram inclined tube；
S3, it then top panel, lower panel, straight tube and inclined tube described in step S1 and S2 is put into dryer is dried for standby；
S4, multiple straight tubes are formed into first layer straight tube component by setting spacing assembled side-by-side, and is between adjacent two straight tube
Mutual handstand arrangement mode；
S5, the first layer straight tube component upper surface described in step S4 constitute second by the multiple straight tubes of setting spacing positive quadraturing laying
Layer straight tube component, and be in handstand arrangement mode between adjacent two straight tube；
Described in S6, the inclined tube inserting step S5 for preparing step S3 between first layer straight tube component and second layer straight tube component
In gap, the tubulose composite construction core closely arranged is formed；
S7, the tubulose composite construction core prepared by step S6 is connect with the step S3 top panel prepared and lower panel
Tubulose compound core body sandwich plate is made.
4. a kind of tubulose composite construction core sandwich plate preparation method according to claim 3, it is characterised in that: step S1
In, the thickness of the top panel 1 and lower panel 4 differs.
5. a kind of tubulose composite construction core sandwich plate preparation method according to claim 3, it is characterised in that: step S3
In, the top panel, lower panel, straight tube and inclined tube are put into supersonic wave cleaning machine, kept for 40~60 DEG C of water temperature, cleaning 0.5
Drying and processing is carried out again after~1h removal surface attachments.
6. a kind of tubulose composite construction core sandwich plate preparation method according to claim 3, it is characterised in that: step S7
In, in the contact surface and straight tube of the contact surface of the straight tube and straight tube, straight tube and inclined tube, the contact surface of inclined tube and upper and lower panel
Uniformly smear solder flux, using vacuum brazing, induction brazing or salt bath brazing by the top panel, tubulose composite construction core and under
Panel links into an integrated entity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710042625.8A CN106863948B (en) | 2017-01-20 | 2017-01-20 | A kind of tubulose composite construction core sandwich plate and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710042625.8A CN106863948B (en) | 2017-01-20 | 2017-01-20 | A kind of tubulose composite construction core sandwich plate and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106863948A CN106863948A (en) | 2017-06-20 |
| CN106863948B true CN106863948B (en) | 2019-01-15 |
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| CN107433372A (en) * | 2017-09-19 | 2017-12-05 | 南通市中京机械有限公司 | The preparation method of aluminium sheet |
| CN110763085A (en) * | 2019-09-17 | 2020-02-07 | 南京航空航天大学 | Micro-perforated orthogonally-arranged rectangular tube sandwich sound absorption and energy absorption composite structure |
| CN111688300A (en) * | 2020-06-04 | 2020-09-22 | 西安交通大学 | Composite structure core sandwich plate with cross-shaped reinforced multi-cell square tube and preparation method thereof |
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