CN108723108A - A kind of manufacturing method and application reducing fluid to the Vented metal shell structure of moving object resistance - Google Patents
A kind of manufacturing method and application reducing fluid to the Vented metal shell structure of moving object resistance Download PDFInfo
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- CN108723108A CN108723108A CN201710250846.4A CN201710250846A CN108723108A CN 108723108 A CN108723108 A CN 108723108A CN 201710250846 A CN201710250846 A CN 201710250846A CN 108723108 A CN108723108 A CN 108723108A
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- Prior art keywords
- moving object
- shell
- micropore
- enclosure space
- vented metal
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/02—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
- B22F7/04—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers with one or more layers not made from powder, e.g. made from solid metal
Abstract
The invention discloses a kind of reduction fluids to the manufacturing method of the Vented metal shell structure of moving object resistance, first, metal fiber wire is knitted to form knitted body slab, then it is sintered, then slab, the pore-size of conpressed fibers sintered blank is sintered by plastic processing compressed fibre silk, reduce the porosity of material, the mechanical property of material is improved, while keeping the connection of material hole, obtains permeable fiber metallic plate；Then Vented metal plate is manufactured into the shell shape and size of moving object by plasticity pressure processing method again, obtain ventilative shell mechanism, the one side of more micropore Vented metal plate materials is set to form the outer surface of moving object shell, another side forms the inner face of moving object shell, and constitutes enclosure space；Air source output pressure gas enters enclosure space, gas penetrates through another surface that more micropore Vented metal case materials reach more micropore Vented metal shells from more micropore Vented metal shells on one side, while Vented metal material can keep the planform of moving object shell and meet Structural strength calls.
Description
Technical field
The present invention relates to the technical fields for reducing fluid resistance, refer in particular to a kind of reductions fluid to high-speed moving object resistance
The manufacturing method of the Vented metal shell structure of power and application.
Background technology
Hull surface gas-bearing formation (i.e. air curtain) drag reduction technology can significantly reduce Ship Resistance, reduce fuel consumption, improve ship
The oceangoing ship speed of a ship or plane has important economy and the value of environmental protection.The basic principle of the technology is the injection between hull outer surface and water
Air or host exhaust gas form one layer thin of uniform and stable biphase gas and liquid flow, utilize the density of water and air, the difference of viscosity
Not, change viscosity, density and the turbulent model in hull surface flow field, that reduces ship actually soaks area, to reduce friction
Resistance.Experiment shows that under appropriate spray air flow and appropriate water velocity, the skin friction resistance of tablet and revolving body can be reduced
50% one 80%.Domestic and international research experience shows：Resistance reduction by air cavity technology can make ship resistance reduce by 15%~25%；Using
On high-speed craft, the speed of a ship or plane 10%~20% or so can be improved, apply on low powered, main engine power 6%~10% can be saved.It
It needs to form mattress between hull and the water surface not as aircushion vehicle, because without consuming a large amount of power, so that it may have
Reduce resistance in effect ground.
Wuhan University of Technology's (bibliography：What Wang Jiamei, Zheng Xiaowei, Jiang Man pine drauhts influenced Friction Reduction by Micro-bubbles
Basin test studies [J] Marine engineerings, 2004 (9)：9-12；Ship Friction Reduction by Micro-bubbles basin test is ground under different jet forms
Study carefully [J] Central China University of Science and Technology journal (natural science edition), 2004 (12)：78-80) by large scale platybasic type ship model, with regard to ship
Oceangoing ship absorbs water and influence of the jet form to air curtain drag-reduction effect has carried out experimental study.In experiment, respectively the head of ship model bottom,
Porous silica material plate is installed to generate microbubble in middle part, and different towed speeds, different jets have been carried out in large-scale towing basin
Under amount, the comparative experiment influenced on drag reducing efficiency is absorbed water.Test result shows only same in stem jet and head, middle part equivalent
When jet and when Fr≤0.646 (Fr be captain's Froude number), drag-reduction effect when shallow draft is good, and total drag reducing efficiency is up to 32.8%.But
Due to using porous silica material plate to generate microbubble, porous silica material plate is difficult to, and hull bottom can only be manufactured into writing board shape,
And hull bottom can not integrally be manufactured into ventilating structure, hinder the practical application of this technology.
Invention content
It is an object of the invention to overcome the deficiencies in the prior art and defect, a kind of reduction fluid is provided to high-speed motion object
The manufacturing method of the Vented metal shell structure of body resistance, securely and reliably, quantities is smaller, and manufacture is easy, and overall cost is low.
To achieve the above object, technical solution provided by the present invention is：A kind of reduction fluid is to moving object resistance
Metal fiber wire is knitted to form knitted body slab, is then sintered, then lead to by the manufacturing method of Vented metal shell structure first
Plastic processing compressed fibre silk sintering slab is crossed, the pore-size of conpressed fibers sintered blank reduces the porosity of material, improves material
The mechanical property of material, while the connection of material hole is kept, obtain permeable fiber metallic plate；Then Vented metal plate is passed through again
Plasticity pressure processing method is manufactured into the shell shape and size of moving object, obtains ventilative shell mechanism, makes more micropores
The one side of Vented metal plate material forms the outer surface of moving object shell, and another side forms the inner face of moving object shell, and
Constitute enclosure space；Air source output pressure gas enters enclosure space, and gas is permeated from more micropore Vented metal shells one side
Reach another surface of more micropore Vented metal shells, while Vented metal material across more micropore Vented metal case materials
Material can keep the planform of moving object shell and meet Structural strength calls.
The metal fiber wire is knitted to form knitted body slab, is that metal fiber wire is woven into Metal screen cloth band first
Material, then by the close wound of Metal screen cloth strip, form the wound slab coated layer by layer that cladding material closely coats inner layer material
Body.
The metal fiber wire is knitted to form knitted body slab, is that metallic fiber tow is woven into braiding slab body.
It is uniformly distributed one layer of powder on filament sintering blanket, then powder rolling is sintered slab in filament
On, powder bed is then re-sintered, so that powder is incorporated on filament sintering blanket, and the hole between powder particle is kept to connect
It is logical, pore-size is obtained along the Vented metal plate of thickness step change profile, the pore-size ladder of more micropore gas permeable materials
Change profile, inner surface pore-size is larger, and outer surface pore-size is smaller.
The shell of the moving object is used with the ventilative plate manufacture for being connected to more micropores, is single hull structure.
The shell of the moving object is double-layer shell structure, and outer layer is used with the ventilative plate system for being connected to more micropores
It makes, internal layer is manufactured using dense non-porous gap metal structure plate, is enclosure space between internal layer and outer layer, gas is connected by pipeline
Source and enclosure space, pressed gas can input enclosure space by pipeline.
When the moving object high-speed motion, from air source into enclosure space injection pressure gas, make gas in enclosure space
The pressure of body is more than the pressure of ambient atmos, and the pressed gas in enclosure space is permeated by the interconnected pore of more micropore gap materials
Reach the housing outer surface of more micropore gap materials across more micropore material housings, forms one with mutually synchronized with moving object
The gas blanket of degree, barrier external fluid acts directly on more micropore material housings outer surface, to reduce or eliminate the external world
Resistance of the fluid to high-speed motion moving object.
The sensor of information acquisition system is placed in the enclosure space, acquires the pressure information of enclosure space, and will pressure
Strong information conveyance is to control system, the valve in control system control pipeline, the break-make of control pipeline and the flow of gas and envelope
Close the pressure in space.
The pressed gas in the enclosure space is set to generate ultrasonic activation.
A kind of application reducing fluid to the manufacturing method of the Vented metal shell structure of moving object resistance, will be fiery
Headstock, bullet train head, automobile, aeroplane nose, shell, guided missile, torpedo, ship, submarine, submarine navigation device are manufactured into ventilative gold
Belong to shell structure.
Compared with prior art, the present invention having the following advantages that and advantageous effect：
1, metal fiber wire braiding, sintering, the technological process of moulding processing and manufacturing Vented metal shell are short, and pore-size is big
Small to be easy to control, method is simple and reliable, is easily guaranteed that quality；
2, the resistance that air or water are subject to transport vehicle can be reduced or eliminated to improve gait of march to subtract
The time loss of few road, improves working efficiency；
3, when external fluid is air, outside air will not act directly on the vehicles of high-speed motion, traffic
Tool operation can more stablize, and security reliability is improved；
4, when external fluid is water, the fluid-mixing layer of bubble and water can be formed between water and moving object, is reduced
Water improves the movement velocity in water to the resistance of high-speed moving object；
5, the resistance that can reduce air drag or water causes the energy consumption of means of transport, energy saving, improves maximum
Stroke reduces transportation cost；
6, the gait of march of guided missile or torpedo greatly improves, and shortens traveling time, reduces the possibility intercepted by anti-missile system
Property；
7, the speed when bomb that aircraft is thrown from high-altitude lands can greatly improve, and what is had lands kinetic energy also substantially
It improves, while the bomb forward position that aircraft is thrown from high-altitude forms a gas blanket with speed identical as moving object, works as bullet
When head and the concrete, reinforcing bar, rock on ground collide, gas blanket has protective effect to bomb head, this is conducive to improve fried
Bullet pierces the depth of underground；
8, simple in structure, easy to manufacture and control, the cost for manufacturing and using is all very low；
9, the method for the present invention can be applied to the traffic such as manufacture track vehicle, aircraft, land route automobile, waterborne vessel
Tool, guided missile, shell, application surface is extensive, can generate huge economic benefit.
Description of the drawings
Fig. 1 is 1 moving object shell mechanism schematic diagram of embodiment.
Fig. 2 is 6 moving object shell mechanism schematic diagram of embodiment.
Fig. 3 is 10 moving object shell mechanism schematic diagram of embodiment.
Specific implementation mode
With reference to multiple specific embodiments, the invention will be further described.
Embodiment 1
Technical solution provided by the present invention is：It is a kind of to reduce Vented metal shell structure of the fluid to moving object resistance
Manufacturing method metal fiber wire is knitted to form knitted body slab, is then sintered first, then to pass through plastic processing compacting fine
It ties up silk and is sintered slab, the pore-size of conpressed fibers sintered blank reduces the porosity of material, improves the mechanical property of material, together
When keep material hole connection, obtain permeable fiber metallic plate；Then Vented metal plate is passed through into plasticity pressure processing side again
Legal system causes the shell shape and size of moving object, obtains ventilative shell mechanism, makes more micropore Vented metal plate materials
One side form the outer surface of moving object shell, another side forms the inner face of moving object shell, and constitutes enclosure space；Gas
Source output pressure gas enters enclosure space, and gas penetrates through more micropores from more micropore Vented metal shells and breathes freely on one side
Metal housing materials reach another surface of more micropore Vented metal shells, while Vented metal material can keep moving object
The planform of body case and meet Structural strength calls.
And in the present embodiment, it is the 1Cr18Ni9 stainless steel silk materials using 35 microns of diameter, is closely compiled by braider
It is made into width and is 1 meter of stainless steel metal cloth, then one end of stainless (steel) wire strap is fixed on 8 millimeters thicks, 40 mm wides, 1200
On the long core plate of millimeter, motor-driven mechanism rotates the axis of core plate, by the close wound of stainless (steel) wire strap on core plate, and keeps
End part aligning forms the stainless steel mesh cloth band plate shape wound green body coated layer by layer that cladding material closely coats inner layer material；Outside
After shape size reaches 10 millimeters of the thickness of requirement, stainless (steel) wire strap is cut short, steel wire is used in combination to tie stainless steel mesh cloth band wound base
Body keeps wound green body will not be loose, then stainless (steel) wire strap wound green body is put into vacuum sintering furnace, heating reaches
1320 degrees Celsius, keep the temperature two hours, sintered stainless steel screen cloth band wound green body, make screen cloth carrying material between layers, silk material it
Between realize metallurgical binding；Sintering and then the plate blank of material being sintered by plate mill rolling, keep blank of material fine and close
Change, reduces the gap in wound plate blank of material, repeatedly roll, manufacture obtains the Vented metal structural panel containing hole, then leads to
It is housing part to cross stamping.Fig. 1 is the present embodiment moving object missile shell schematic diagram, and the shell of guided missile is single hull
Structure is manufactured into bullet outer housing 1 using ventilative stainless steel plate.The pore-size of more micropores of ventilative stainless steel plate is less than 5
Micron.The one side of the ventilative stainless steel plate in more micropores constitutes the missile case outer surface that resistance is formed by air effect, another side
The inner face for forming road bullet outer housing, and constitutes enclosure space 2, has liquefied gas bottle (for air source, not have in figure in enclosure space 2
Draw) liquefied gas is housed, the valve of liquefied gas bottle is opened before launching a guided missile by control system, it is empty that liquefied gas is discharged into closing
Between in 2, so that the gas pressure of enclosure space 2 is reached 2 atmospheric pressure, and pass through the gas pressure that control system maintains enclosure space 2
It tries hard to keep and holds 2 atmospheric pressure.Ventilatory control system controls ventilation flow rate, duration of ventilation and pressure etc..Due to the gas in enclosure space 2
Body pressure is more than extraneous atmospheric pressure, and the gas in enclosure space 2 can penetrate guided missile from the micropore of more micropore stainless steel plates
Sheathing material reaches the outer surface of more micropore missile shells.5 millimeters thick of Vented metal material, can keep the knot of missile shell
It is configured shape and meets intensity requirement.After MISSILE LAUNCHING is gone out, the gas in enclosure space 2 has movement identical with guided missile speed
Degree equally has movement velocity identical with guided missile, in the outer surface shape of missile shell when being penetrated into the outer surface of missile shell
At a gas blanket with speed identical as moving object guided missile, barrier outside air acts directly on missile shell outer surface
On, to reduce or eliminate resistance of the outside air to high-speed motion guided missile, to which guided missile can reach higher flying speed,
Shorten the flight time, reduces the possibility intercepted by anti-missile system.
Embodiment 2
The present embodiment uses 20 steel wire material 200 of 50 microns of diameter to be a branch of as different from Example 1, braider into
Row multi beam weaves, 2000 millimeters of braiding growth, 300 millimeters wide, thick 10 millimeters of braiding slab body, then in 1250 degrees Celsius of temperature
Sintering 2 hours makes to realize metallurgical binding between silk material, obtains sintered plate green body, sintering is then woven plank material base in room temperature
Body carries out rolling processing between being placed in the roll of strip rolling mill, and the pore-size of conpressed fibers sintered blank reduces the hole of material
Gap rate, improves the mechanical property of material, while keeping the connection of material hole, obtains thick 5 millimeters of permeable fiber metallic plate, then
Permeable fiber metallic plate is processed into the hull shape and size of moving object.
Embodiment 3
The present embodiment is uniformly distributed one layer of stainless steel powder on filament sintering blanket as different from Example 1
End, powder of stainless steel are 100 microns, then then powder of stainless steel rolling is re-sintered stainless steel on filament sintering slab
Powder bed makes powder of stainless steel be incorporated on filament sintering blanket, and keeps the porosity communication between powder particle, obtains hole
Gap size along thickness step change profile Vented metal plate, more micropore gas permeable materials pore-size stepped change distribution,
Fiber surface pore-size is 100 microns, and smaller powder surface pore size is 5 microns, 5 millimeters of permeable fiber thickness,
Ventilative 0.5 millimeter of powder thickness.
Embodiment 4
The present embodiment manufacture Vented metal plate raw material are aluminium alloy silk material, titanium alloy wire materials as different from Example 1
And other alloy wires.
Embodiment 5
The present embodiment moving object is the bomb that aircraft is earthward thrown as different from Example 1.
Embodiment 6
Use 20 steel wire material 200 of 50 microns of diameter to be a branch of, braider carries out multi beam braiding, 2000 milli of braiding growth
Rice, 300 millimeters wide, 5 millimeters of thickness braiding slab body, then in the sintering 2 hours of 1250 degrees Celsius of temperature, make to realize smelting between silk material
Gold combines, and obtains sintered plate green body, then between sintering braiding plate material green body is placed in the roll of strip rolling mill by room temperature
Rolling processing is carried out, the pore-size of conpressed fibers sintered blank reduces the porosity of material, improves the mechanical property of material, together
When keep material hole connection, obtain permeable fiber metallic plate.Be uniformly distributed on permeable fiber metallic plate again one layer it is stainless
Powdered steel, powder of stainless steel are 100 microns, then then powder of stainless steel rolling is re-sintered not on filament sintering slab
Rust comminuted steel shot last layer makes powder of stainless steel be incorporated on filament sintering blanket, and keeps the porosity communication between powder particle, obtains
Obtain Vented metal plate of the pore-size along thickness step change profile, the pore-size stepped change point of more micropore gas permeable materials
Cloth, fiber surface pore-size are 100 microns, and smaller powder surface pore size is 5 microns.Again by permeable fiber metal
Plate is processed into the shape and size of the road bullet outer housing 3 of Fig. 2.
Fig. 2 is the present embodiment moving object missile shell schematic diagram, and the shell of guided missile is double-layer shell structure, using common
Dense non-porous gap metallic plate manufactures road bullet internal layer shell 1, is internal layer and outer layer using Vented metal plate manufacture road bullet outer housing 3,7
Between supporting block, space between internal layer shell 1 and outer casing 3 is that enclosure space 2,4 is gas compressor (for air source),
5 be pipeline, and 6 be the break-make of pipeline valve control pipeline 5, and the space 8 on head is connected to enclosure space 2.Information collection system
The sensor (not drawn in figure) of system is placed in enclosure space, acquires the pressure information of enclosure space, and pressure information is defeated
Give control system, the valve in control system control pipeline, the break-make of control pipeline and the flow of gas and enclosure space
Pressure.Compressed air is transported to enclosure space 2 and 8 by gas compressor 4 through pipeline 5, since the pressure of compressed gas is more than outer
Boundary's atmospheric pressure, compressed gas can reach from the micropore of more micropore metallic plates through missile shell material outside more micropore guided missiles
The outer surface of shell.After MISSILE LAUNCHING is gone out, the gas in enclosure space 8 has movement velocity identical with guided missile, is penetrated into and leads
Play shell outer surface when equally have movement velocity identical with guided missile, missile shell outer surface formed one have with
The gas blanket of the identical speed of moving object guided missile, barrier outside air acts directly on the outer surface of missile shell, to subtract
Less or resistance of the outside air to high-speed motion guided missile is eliminated, to which guided missile can reach higher flying speed.
Embodiment 7
The present embodiment high-speed moving object is aircraft as different from Example 6, and the nose cone of aircraft uses Vented metal plate
Manufacture.
Embodiment 8
The hole full-size of more micropore gap materials described in the present embodiment is 200 microns as different from Example 1.
Embodiment 9
The hole of more micropore gap materials described in the present embodiment is ladder pore size distribution as different from Example 1, interior
Face pore-size is larger, is 100 microns；Outside pore-size is smaller, is 3 microns.
Embodiment 10
The present embodiment Fig. 3 is outside the tractor head of the present embodiment moving object bullet train as different from Example 1
Shell schematic diagram, 1 is compartment, and 2 be wheel, and 3 be using the tractor head shell of Vented metal plate manufacture, and 4 be that the direction of motion refers to
Show arrow, 6 be using the tractor head internal layer shell of common dense non-porous gap metallic plate manufacture, internal layer shell 6 and outer shell
Space between body 3 is enclosure space 5.Compressed air is transported to closing sky by gas compressor through pipeline (not drawn in figure)
Between 5, since the pressure of compressed gas is more than external atmosphere pressure, compressed gas can penetrate from the micropore of more micropore metallic plates 3
Truck head shell material reaches the outer surface of more micropore Shell Plates.When locomotive high-speed motion, gas in enclosure space 5 have with
Locomotive identical movement velocity equally has movement velocity identical with locomotive, in machine when being penetrated into the outer surface of locomotive shell
The outer surface of vehicle head shell forms a gas blanket with speed identical as moving object locomotive, and barrier outside air is direct
It acts on the outer surface of locomotive shell, to reduce or eliminate resistance of the outside air to high-speed motion locomotive head, to
Locomotive can reach higher movement velocity.
Embodiment 11
Moving object described in the present embodiment is automobile as different from Example 10.
Embodiment 12
The present embodiment makes the gas in enclosure space generate ultrasonic activation as different from Example 1, improves gas and exists
Penetration speed in more micropore gap materials.
Embodiment 13
The air source of the present embodiment is gas generator or built-in pressure vessel as different from Example 6.
Embodiment 14
Moving object described in the present embodiment is torpedo as different from Example 1, and torpedo moves in water, and gas is from torpedo
Vented metal shell when appearing, the fluid-mixing layer of bubble and water can be formed between water and torpedo shell, reduce water to height
The resistance of speed movement torpedo, to improve the movement velocity of torpedo.
Embodiment 15
The object of underwater exercise described in the present embodiment is submarine as different from Example 14.
Embodiment 16
The object of underwater exercise described in the present embodiment is the hydrofoil of Jet boat or hydrofoil as different from Example 14.
In conclusion the principle of the method for the present invention is：Such as air-bearing, after gas penetrates more micropore gap materials, mostly micro-
Porous material surface forms a gas blanket, this gas blanket can bear certain external force, when more micropore gap materials are with high speed
When movement, the gas infiltrated from more micropore gap materials has speed same as more micropore gap materials, if moving object
The speed of body is 100 meter per seconds, then the gas velocity infiltrated from more micropore gap materials is also 100 meter per seconds, from mostly micro-
The gas oozed out in porous material can arrange extraneous air, and outside air is prevented to be applied directly in moving object, to
The air drag that moving object is subject to is reduced or eliminated, such moving object can reach higher speed.When object is in water
When middle movement, when gas is appeared from the ventilative shell of underwater exercise object, bubble can be formed between water and moving object shell
With the fluid-mixing layer of water, reduce resistance of the water to high-speed moving object, to improve the movement velocity of underwater exercise object.It is logical
Cross metal fiber wire braiding, sintering, moulding machining process route can produce more micropore Vented metal shells, pore-size
Size is easy to control, while Vented metal material can keep the planform of moving object shell and meet structural strength and want
It asks.
Embodiment described above is only present pre-ferred embodiments, and but not intended to limit the scope of the present invention, therefore
Change made by all shapes according to the present invention, principle, should all cover within the scope of the present invention.
Claims (10)
1. a kind of reducing manufacturing method of the fluid to the Vented metal shell structure of moving object resistance, it is characterised in that：First,
Metal fiber wire is knitted to form knitted body slab, is then sintered, then slab, compression are sintered by plastic processing compressed fibre silk
The pore-size of fiber sintering base reduces the porosity of material, improves the mechanical property of material, while keeping the company of material hole
It is logical, obtain permeable fiber metallic plate；Then Vented metal plate is manufactured into moving object by plasticity pressure processing method again
Shell shape and size obtain ventilative shell mechanism, and the one side of more micropore Vented metal plate materials is made to form moving object
The outer surface of shell, another side form the inner face of moving object shell, and constitute enclosure space；Air source output pressure gas enters
Enclosure space, gas penetrate through more micropore Vented metal case materials from more micropore Vented metal shells and reach more on one side
Another surface of micropore Vented metal shell, at the same Vented metal material can keep moving object shell planform and
Meet Structural strength calls.
2. metal fiber wire according to claim 1 is knitted to form knitted body slab, it is characterised in that：By metal fiber wire
It is woven into Metal screen cloth strip, then by the close wound of Metal screen cloth strip, forms the layer that cladding material closely coats inner layer material
The wound slab body of layer cladding.
3. metal fiber wire according to claim 1 is knitted to form knitted body slab, it is characterised in that：By metal fiber wire
Beam is woven into braiding slab body.
4. being uniformly distributed one layer of powder on the filament sintering blanket according to claim 1, then by powder rolling in fibre
Tie up silk sintering slab on, then re-sinter powder bed, make powder be incorporated in filament sintering blanket on, and keep powder particle it
Between porosity communication, obtain pore-size along the Vented metal plate of thickness step change profile, the hole of more micropore gas permeable materials
Gap Size ladder change profile, inner surface pore-size is larger, and outer surface pore-size is smaller.
5. the shell of moving object according to claim 1, it is characterised in that：Using with the air permeable plate for being connected to more micropores
Material manufacture is single hull structure.
6. the shell of moving object according to claim 1, it is characterised in that：For double-layer shell structure, outer layer, which uses, to be had
It is connected to the ventilative plate manufacture of more micropores, internal layer is manufactured using dense non-porous gap metal structure plate, between internal layer and outer layer
For enclosure space, enclosure space can be inputted by pipeline by connecting air source and enclosure space, pressed gas by pipeline.
7. according to claim 1 when moving object high-speed motion, it is characterised in that：Pressure is injected into enclosure space from air source
Strength body, makes the pressure of gas in enclosure space be more than the pressure of ambient atmos, and the pressed gas in enclosure space passes through mostly micro-
The interconnected pore of porous material penetrates through the housing outer surface that more micropore material housings reach more micropore gap materials, forms one
A gas blanket with speed identical as moving object, barrier external fluid act directly on more micropore material housings outer surface
On, to reduce or eliminate resistance of the external fluid to high-speed motion moving object.
8. according to claim 1 in enclosure space, it is characterised in that：The sensor of information acquisition system is placed in the closing
In space, the pressure information of enclosure space is acquired, and by pressure information conveyance to control system, in control system control pipeline
The pressure of valve, the break-make of control pipeline and the flow of gas and enclosure space.
9. a kind of reduction fluid according to claim 1 is to the manufacturer of the Vented metal shell structure of moving object resistance
Method, it is characterised in that：The pressed gas in the enclosure space is set to generate ultrasonic activation.
10. a kind of according to claim 1 reduce manufacturer of the fluid to the Vented metal shell structure of moving object resistance
The application of method, it is characterised in that：By locomotive engine, bullet train head, automobile, aeroplane nose, shell, guided missile, torpedo, ship, dive
Ship, submarine navigation device are manufactured into Vented metal shell structure.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710250846.4A CN108723108A (en) | 2017-04-13 | 2017-04-13 | A kind of manufacturing method and application reducing fluid to the Vented metal shell structure of moving object resistance |
| PCT/CN2018/082333 WO2018188556A1 (en) | 2017-04-13 | 2018-04-09 | Manufacturing method for air permeable metal housing structure which reduces fluid resistance to moving object and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710250846.4A CN108723108A (en) | 2017-04-13 | 2017-04-13 | A kind of manufacturing method and application reducing fluid to the Vented metal shell structure of moving object resistance |
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| CN108723108A true CN108723108A (en) | 2018-11-02 |
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| WO (1) | WO2018188556A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110237600A (en) * | 2019-04-30 | 2019-09-17 | 西安宝德九土新材料有限公司 | A kind of device and method preparing porous nickel matter filter membrane |
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| WO2018188556A1 (en) | 2018-10-18 |
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