CN106641487A - Crocheting porous and thin-walled layered metal composite tube - Google Patents
Crocheting porous and thin-walled layered metal composite tube Download PDFInfo
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- CN106641487A CN106641487A CN201710030620.3A CN201710030620A CN106641487A CN 106641487 A CN106641487 A CN 106641487A CN 201710030620 A CN201710030620 A CN 201710030620A CN 106641487 A CN106641487 A CN 106641487A
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- crocheted
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement
- F16L9/165—Rigid pipes wound from sheets or strips, with or without reinforcement of metal
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a crocheting porous and thin-walled layered metal composite tube which comprises at least one crocheting porous metal tube and at least one thin-walled metal tube, wherein the crocheting porous metal tube and the thin-walled metal tube are arranged in an interval sleeving manner; and the connecting relation of the crocheting porous metal tube and the thin-walled metal tube is tight fit, or metallurgical bonding with high bonding strength and macromolecule bonding. According to the invention, starting from the viewpoints of buffer energy absorption and light weight, radial structural rigidity and bearing capacity are ensured, the shock resistance capacity in the axial direction, the side direction and the slant direction is enhanced, organic integration of light weight, integral rigidity, excellent energy absorption and low impact force peak value is realized, and light weight, porous, thin-walled and coupled energy absorption is realized.
Description
Technical field
The invention belongs to thin metallic tubd buffering energy-absorbing anticollision field, and in particular to a kind of crocheted porous and thin-walled stratiform gold
Category multiple tube.
Background technology
Tubular metal structure has simple and effective shape, forming technology easy to process and assembling, low cost, light
Quality and good energy absorption characteristics, thus it is widely used in the fields such as automobile, Aero-Space, building, ship, oil and natural gas
The energy absorption of dissipation kinetic energy, wherein, it is the most extensive with the collision safety design and Application of body of a motor car.
It is used for energy-absorbing anti-collision with regard to tubular metal, around cross sectional shape (triangle, four sides of compact metal light-wall pipe
Shape, hexagon, octagon), the thickness (taper, functionally gradient) of thin-wall metal pipe, thin-wall metal pipe filling (foamed aluminium, honeycomb,
Hollow ball) and many born of the same parents' thin-wall metal pipes (thin-wall construction of each combining form is inserted in pipe) carried out substantial amounts of innovation.Above-mentioned side
Method increased construction weight while reinforcement tubular metal structure energy-absorbing anti-collision ability, and the enhancing of structural rigidity causes structure
Initial conquassation peak value greatly increase.
Initial conquassation peak value is that tubular metal structure is used to compress a very important shortcoming of energy-absorbing anti-collision presence, its
A very big initial value is rendered as, it is more much higher than average compression stress.According to head injury index, initial conquassation peak value may make
Before buffering energy-absorbing function is played, the load being transferred on protected object exceedes its tolerance to structure, and does great damage.
The initial conquassation peak value of structure need to be reduced in order to optimize tubular structure buffering energy-absorbing performance, has occurred some drops at present
The measure of low peak, carry out vertically such as on tube wall spacing punching, along pipe surfaces externally and internally along it is a certain interval processing rectangular recess,
Outer surface forms folding line or adopts bellows, flexible structure is formed on tube wall, to induce tubular construction easily to send out under axial loading
Raw Folding Deformation, so as to reduce the initial conquassation peak value of structure.Said method subtracts while reduction structure initial conquassation peak value
The weight of light structure, but also reduce integrally-built rigidity and bearing capacity, especially to tubular construction radial rigidity and lateral oblique
Impact resistance generates greatly weakening.
The content of the invention
In order to solve above-mentioned technical problem, the invention provides a kind of crocheted porous and thin-walled making laminated composite metal pipe,
It is axial, lateral and oblique from buffering energy-absorbing and light-weighted angle, it is ensured that while radial structure rigidity and bearing capacity
Impact resistance strengthens, and realizes organically blending for lightweight, integral rigidity, good energy-absorbing and low impulsive force peak value, realizes one kind
Light porous thin-walled couples energy-absorbing.
The scheme that the present invention solves above-mentioned technical problem is as follows：
Crocheted porous and thin-walled making laminated composite metal pipe, including at least one crocheted porous metal tube and at least one thin-walled
Metal tube, the crocheted porous metal tube and thin metallic tubd compartment fit, crocheted porous metal tube and thin metallic tubd it
Between annexation be tight fit or the metallurgical binding with high bond strength and macromolecule bonding.
The metallurgical binding is solid-phase sintering, vacuum liquid-phase sintering, vacuum brazing or dip brazing.
The macromolecule is bonded as the special acrylic acid structure glue of high-strength impact-resistant bonding iron and steel copper aluminum metal.
The material of the thin metallic tubd is steel or aluminium alloy, and cross sectional shape is circle, triangle, square or six sides
Shape, is shaped as straight tube or taper tube.
The crocheted porous metal tube is flexible pipe, by crocheting direct forming or multiple by crocheting, winding, loop bonding
Process forming is closed, with good pliability.Certainly, this flexible pipe is alternatively flexible sheets by crocheting quadrangularly, then sutures
Into tubulose.
The crocheted porous metal tube is rigid pipe, by crocheting direct forming or multiple by crocheting, winding, loop bonding
Close technique and form flexible pipe, then under tension force effect, in 1200 DEG C～1330 DEG C sintering, be incubated 2～3h, it is cold with stove, very
Empty solid-phase sintering is strengthened to form rigid pipe, and at skeleton hitch connection point of restricting in rigid pipe a large amount of metallurgical junction chalaza are formed.Certainly, this rigidity
Pipe is alternatively rigid disk by crocheting quadrangularly, under then being acted on by tightening force, in 1200 DEG C～1330 DEG C sintering, insulation
2～3h, cold with stove, vacuum solid-phase sintering is strengthened to form rigid pipe.
The crocheting is：With a diameter of 0.2mm and 0.3mm, structure is 1 × 7, by the stainless steel of 7 steel wire twistings
The ultra-fine flexible steel cable of 304 or 316 multiplies is base material, or with a diameter of 0.5mm and 0.8mm, structure is 7 × 7, is twisted with the fingers by 49 steel wires
The stainless steel 304 or the ultra-fine flexible steel cable of 316 multiplies of system is base material.
Mutually crocheted, multiple interlocking, and itself is also ordered micro-cellular structure, macroscopic pores size and flexible structure are changeable, hole
Density can change in Arbitrary Gradient, and with good radial direction toughness and shock resistance, overall structure is rendered as porous flexible.It is ultra-fine soft
Stainless steel cable has excellent pliability, not only can carry out any crocheted shaping, and the porous structure layer for multiple tube is carried
The rope skeleton to impact capacity with stronger tension and anti-side is supplied.
Multiple tube includes a crocheted porous metal tube and a thin metallic tubd, and the crocheted porous metal tube is located at thin
Wall metallic pipe inner surface or outer surface.
Or, multiple tube includes two crocheted porous metal tubes and a thin metallic tubd, described two crocheted porous gold
Category pipe is located at respectively thin metallic tubd surfaces externally and internally.
Or, multiple tube includes two thin metallic tubds and a crocheted porous metal tube, described two thin metallic tubds
Crocheted porous metal tube surfaces externally and internally is located at respectively.
The present invention has the following advantages relative to prior art：
1st, this crocheted porous and thin-walled making laminated composite metal pipe, realize lightweight, integral rigidity, good energy-absorbing and low impulsive force
Organically blending for peak value, realizes a kind of light porous thin-walled and couples energy-absorbing；Processing step is simple, easy to operate, implements easy,
Production cost is relatively low, easily makes structural member and is used, and for anticollision field a kind of new approaches and new departure are provided.
2nd, this crocheted porous and thin-walled making laminated composite metal pipe, crocheted porous metal tube be flexible pipe, crocheted porous metals
Pipe toughness of light-wall pipe with the composite strengthening of thin metallic tubd, it is overall there is stronger toughness, it is mainly used in anti-lateral impact
Energy-absorbing, anti-lateral thrust and flexural fatigue.
3rd, this crocheted porous and thin-walled making laminated composite metal pipe, crocheted porous metal tube is rigid pipe, changes buffering energy-absorbing
Pattern, axially and radially rigidity reinforced, axial, lateral and oblique impact resistance strengthens, and lateral bending resistance and bends tired
Labor ability strengthens, with integral rigidity, high tenacity, omnibearing shock resistance.
4th, this crocheted porous and thin-walled making laminated composite metal pipe show as crocheted loose structure energy-absorbing, interface energy-absorbing and thin-walled
The coupling energy-absorbing of metal tube energy-absorbing, there is abundant energy-absorbing modes, high energy absorbing efficiency.
5th, porous structure layer institutional framework has stronger plasticity：Crocheting is only needed can be straight by single rope by a crochet hook
Porous tubular structured, the conversion crocheted path and crochet hook size that crocheted is organized into a kind of hollow out is connect, arbitrary hook can be realized
Knit the pore structure of porous metal tube and the infinite change of hole density.
6th, crocheted thickness degree can flexible design and control, due to crocheting with winding, loop bonding technique use.Crocheted porous gold
Belong to the simple for process, flexible and changeable of pipe, low production cost, easily realize the ever-changing of multiple tube porous layer pore structure.
Description of the drawings
Fig. 1 is lamellar composite tubular construction schematic sectional view (being outward crocheted porous metal tube 1, interior for thin metallic tubd 2).
Fig. 2 is lamellar composite tubular construction schematic sectional view (interior for crocheted porous metal tube 1, be outward thin metallic tubd 2).
Fig. 3 is that (inside and outside for crocheted porous metal tube 1, centre is thin metallic tubd to lamellar composite tubular construction schematic sectional view
2)。
Fig. 4 is that (inside and outside for thin metallic tubd 2, centre is crocheted porous metal tube to lamellar composite tubular construction schematic sectional view
1)。
Specific embodiment
With reference to the accompanying drawings and examples the invention will be further described.
Embodiment 1
The crocheted porous metal tube of flexible stainless steel cable is enclosed within the outer surface of thin metallic tubd, and by swelling direct shape is coordinated
Layered multiple tube, as shown in figure 1, the thin metallic tubd 2 of the crocheted porous metal tube 1 and internal layer including outer layer.Cross sectional shape
For circle, triangle, quadrangle, hexagon straight tube or taper tube.The material of thin metallic tubd can be stainless steel or aluminium alloy.
Embodiment 2
As different from Example 1, in the present embodiment, crocheted porous metal tube is rigidity：Flexible stainless steel rope hook knits many
Mesoporous metal pipe, is inserted into ceramic rod, and in 1200 DEG C～1330 DEG C, insulation 2～3h vacuum solid-phase sinterings are formed.Crocheted porous metals
Pipe cooperatively forms multiple tube with thin metallic tubd using tension.
Embodiment 3
The present embodiment brush high intensity polymeric adhesive, the lower 24 hours all solidstates of normal temperature on the contact surface, carry out macromolecule
Bonding forms stratiform multiple tube.Crocheted porous metal tube is flexibility.
Embodiment 4
As different from Example 3, crocheted porous metal tube is rigidity.Crocheted porous flexible pipe tension force effect under,
In 1200 DEG C～1330 DEG C sintering, 2～3h is incubated, cold with stove, vacuum solid-phase sintering is strengthened to form rigid pipe, bone of restricting in rigid pipe
Rack hook junction forms a large amount of metallurgical junction chalaza.
Certainly, this rigid pipe is alternatively rigid disk by crocheting quadrangularly, under then being acted on by tightening force, in 1200
DEG C～1330 DEG C of sintering, and 2～3h is incubated, cold with stove, vacuum solid-phase sintering is strengthened to form rigid pipe.
Embodiment 5
The crocheted porous metal tube of flexible stainless steel cable is enclosed within the outer surface of thin metallic tubd, in being placed in vacuum sintering furnace,
In 1200 DEG C～1330 DEG C sintering, 2～3h is incubated, it is cold with stove, carry out metallurgical binding and form stratiform multiple tube.Thin metallic tubd is
Stainless steel tube.
Embodiment 6
The crocheted porous metal tube of flexible stainless steel cable is enclosed within the outer surface of thin metallic tubd, and low melting point is sprayed on faying face
Alloy, using instantaneous vacuum liquid-phase sintering, forms stratiform multiple tube.The material of thin metallic tubd can be stainless steel or aluminium alloy.
Embodiment 7
As different from Example 6, in the present embodiment, crocheted porous metal tube is rigidity.
Embodiment 8
The crocheted porous metal tube of flexible stainless steel cable is enclosed within the outer surface of thin metallic tubd, using vacuum brazing or dipping
Soldering, forms stratiform multiple tube.
Embodiment 9
As different from Example 8, in the present embodiment, crocheted porous metal tube is rigidity.
Embodiment 10-18
From unlike embodiment 1-9, thin metallic tubd is enclosed within the outer surface that stainless steel rope hook knits porous flexible metal tube,
As shown in Fig. 2 including outer layer thin metallic tubd 2 and internal layer crocheted porous metal tube 1.
Embodiment 19
Thin metallic tubd is enclosed within the outer surface of the crocheted porous metal tube of flexible stainless steel cable, the insertion of crocheted porous metal tube
Ceramic rod, makes crocheted porous metal tube and thin metallic tubd swelling, in vacuum sintering furnace, sinters in 1200 DEG C～1330 DEG C,
2～3h of insulation, cold with stove, metallurgical binding forms stratiform multiple tube, and thin metallic tubd is only stainless steel tube.
Embodiment 20
Thin metallic tubd surfaces externally and internally arranges crocheted porous metal tube, snug fit, brush high intensity macromolecule on composition surface
Bonding agent (the special acrylic acid structure glue of high-strength impact-resistant bonding iron and steel copper aluminum metal), the lower 24 hours all solidstates of normal temperature, shape
Layered multiple tube, as shown in figure 3, including outer layer crocheted porous metal tube 1, intermediate layer thin metallic tubd 2 and internal layer crocheted are more
Mesoporous metal pipe 1.Thin metallic tubd material is stainless steel or aluminium alloy.
Embodiment 21
Thin metallic tubd surfaces externally and internally arranges crocheted porous metal tube, and snug fit then inserts ceramic rod, makes internal layer hook
Knit porous metal tube and be close to thin metallic tubd, in 1200 DEG C～1330 DEG C sintering in vacuum sintering furnace, 2～3h is incubated, with stove
It is cold, stratiform multiple tube is formed, thin metallic tubd is only stainless steel tube.
Embodiment 22
Thin metallic tubd surfaces externally and internally arranges crocheted porous metal tube, and snug fit sprays low melting point on inside and outside composition surface
Alloy, using instantaneous vacuum liquid-phase sintering, forms stratiform multiple tube, and thin metallic tubd material is stainless steel or aluminium alloy.
Embodiment 23
Thin metallic tubd surfaces externally and internally setting crocheted porous metal tube, snug fit, using vacuum brazing or dip brazing,
Form stratiform multiple tube.Thin metallic tubd material is stainless steel or aluminium alloy.
Embodiment 24-28
From unlike embodiment 19-23, crocheted porous metal tube is rigidity.
Embodiment 29-33
From unlike embodiment 19-23, the location swap of thin metallic tubd and crocheted porous metal tube, i.e., 2 thin-walleds
Metal tube and 1 crocheted porous metal tube, lamellar composite pipe is as shown in figure 4, including outer layer thin metallic tubd 2, intermediate layer crocheted
Porous metal tube 1 and internal layer thin metallic tubd 2.
Embodiment 34
Crocheted porous metal tube can be multiple crocheted porous loops, and by steel wire rope loop bonding is carried out.
Embodiment 35
Crocheted porous metal tube can be multiple crocheted porous loops, invest ceramic pipe individual pen and overlap, and junction adopts steel
Cord carries out loop bonding, in 1200 DEG C～1330 DEG C sintering, is incubated 2～3h, cold with stove.
Embodiment 36
Crocheted porous metal tube can be two-layer fabric, along the dry spacing lines loop bonding of bar.
Embodiment 37
Crocheted three (four, six) crocheted piece, carries out loop bonding between crocheted piece, be tightly placed in triangle (quadrangle, six sides
Shape) outside earthenware, in 1200 DEG C～1330 DEG C sintering, 2～3h is incubated, it is cold with stove, form porous rigid piece.
Embodiment 38
Crocheted porous metal tube is：Crocheted porous belts angled manner winds around thin-wall metal tube outer surface, two ends weldering
Connect.
Embodiment 39
Crocheted porous metal tube is：Crocheted quadrangle piece, depends on thin metallic tubd and winds with one circuit, and in junction steel is adopted
Cord loop bonding, is stitched into tubulose.
Embodiment 40
Crocheted three (four, six) crocheted piece, carries out loop bonding between crocheted piece, be tightly placed in triangle (quadrangle, six sides
Shape) outside earthenware.
Embodiment 41
In friction tight mode, be able to can be axially inserted into not between thin metallic tubd and crocheted porous metal tube
Rust steel or aluminium alloy capillary or metal bar.
Embodiment 42
Stainless steel rope hook knits quadrangle piece, depends on ceramic pipe and winds with one circuit, and in junction steel wire rope loop bonding is adopted, in
1200 DEG C～1330 DEG C sintering, are incubated 2～3h, cold with stove, form porous rigid pipe.
Embodiment 43
As raw material, (structure is 7 × 7 to ultra-fine soft 304 stainless steel steel wire rope with a diameter of 0.5mm, by 49 steel wire ropes
Twisting is formed), using the crochet hook of a diameter of 3.5mm, rise 16 pins, hour hand crocheted method crocheted porous metal tube in the same direction, by its with
6063-T4 aluminum alloy thin walled pipes (diameter 30mm, height 60mm, wall thickness 1mm) adopted tight fit directly to form stratiform multiple tube.
Embodiment 44
Ultra-fine soft 304 stainless steel steel wire rope with a diameter of 0.5mm, using the crochet hook of a diameter of 3.5mm, rises as raw material
16 pins, hour hand crocheted method crocheted porous metal tube in the same direction, by itself and 6063-T4 aluminum alloy thin walled pipes (diameter 30mm, height
60mm, wall thickness 1mm) adopted tight fit directly to form stratiform multiple tube.
Embodiment 45
Ultra-fine soft 304 stainless steel steel wire rope with a diameter of 0.5mm, using the crochet hook of a diameter of 3.5mm, rises as raw material
16 pins and 14 pins, hour hand crocheted method difference Crocheting machine outer layer in the same direction and internal layer porous metal tube, by itself and 6063-T4 aluminum alloy thins
Wall pipe (diameter 30mm, height 60mm, wall thickness 1mm) directly forms stratiform multiple tube using inside and outside tight fit of crossing.
Embodiment 46
Ultra-fine soft 304 stainless steel steel wire rope with a diameter of 0.5mm, using the crochet hook of a diameter of 3.5mm, rises as raw material
16 pins, hour hand crocheted method crocheted porous metal tube in the same direction, by itself and 6063-T4 aluminum alloy thin walled pipes (diameter 30mm, height
60mm, wall thickness 1mm) tight fit was adopted, then by rotation press-in 6063-T4 aluminum alloy thin walled pipes (diameter 27.6mm, height
60mm, wall thickness 1mm), stratiform multiple tube is formed, as shown in Figure 4.
Embodiment 47
Ultra-fine soft 304 stainless steel steel wire rope with a diameter of 0.5mm, using the crochet hook of a diameter of 3.5mm, rises as raw material
16 pins, hour hand crocheted method crocheted porous metal tube in the same direction is swollen with 304 stainless steel tubes (diameter 30mm, height 60mm, wall thickness 1mm)
Tight fit, after vacuum sintering furnace high temperature solid-phase sintering, sintering temperature is 1300 DEG C, is incubated 3 hours, cold with stove, realizes smelting
Gold is combined, and forms stratiform multiple tube.
Embodiment 48
With the ultra-fine soft 304 stainless steel steel wire ropes of a diameter of 0.5mm as raw material, using the crochet hook of a diameter of 3.5mm, 16 are played
Pin, hour hand crocheted method crocheted porous metal tube in the same direction, is axially inserted into external diameter 1mm, 304 Stainless Steel Capillaries of wall thickness 0.35mm
Pipe, as skeleton is strengthened, forms tight fit, and it is swollen with 304 stainless steel metal pipes (diameter 30mm, height 60mm, wall thickness 1mm)
After tight fit, in vacuum sintering furnace high temperature solid-phase sintering, sintering temperature is 1300 DEG C, is incubated 3 hours, cold with stove, realizes smelting
Gold is combined, and forms the enhanced lamellar composite pipe of band skeleton.
Crocheted porous metal tube, thin metallic tubd, capillary in above-described embodiment, all should be in 5% hydrochloric acid solution before being combined
Middle cleaning, soak time is 5～15 minutes, is rinsed well with clear water after taking-up, is finally dried.
It is above-mentioned not limited by the above for the present invention preferably embodiment, but embodiments of the present invention, its
He any Spirit Essence and the change, modification, replacement made under principle without departing from the present invention, combine, simplification, should be
The substitute mode of effect, is included within protection scope of the present invention.
Claims (10)
1. crocheted porous and thin-walled making laminated composite metal pipe, it is characterised in that：Including at least one crocheted porous metal tube and extremely
A few thin metallic tubd, the crocheted porous metal tube and thin metallic tubd compartment fit, crocheted porous metal tube with it is thin
Annexation between wall metallic pipe is metallurgical binding, macromolecule bonding or tight fit.
2. crocheted porous according to claim 1 and thin-walled making laminated composite metal pipe, it is characterised in that：The metallurgical binding
For solid-phase sintering, vacuum liquid-phase sintering, vacuum brazing or dip brazing.
3. crocheted porous according to claim 1 and thin-walled making laminated composite metal pipe, it is characterised in that：The macromolecule glues
Become the special acrylic acid structure glue of high-strength impact-resistant bonding iron and steel copper aluminum metal.
4. crocheted porous according to claim 1 and thin-walled making laminated composite metal pipe, it is characterised in that：The thin-wall metal
The material of pipe is steel or aluminium alloy, and cross sectional shape is circle, triangle, square or hexagon, is shaped as straight tube or taper
Pipe.
5. crocheted porous according to claim 1 and thin-walled making laminated composite metal pipe, it is characterised in that：The crocheted porous
Metal tube is flexible pipe, by crocheting direct forming, or by crocheting, winding, the shaping of loop bonding combination process.
6. crocheted porous according to claim 1 and thin-walled making laminated composite metal pipe, it is characterised in that：The crocheted porous
Metal tube is rigid pipe, by crocheting direct forming；Or flexible pipe is formed by crocheting, winding, loop bonding combination process, then
Under tension force effect, in 1200 DEG C～1330 DEG C sintering, 2～3h is incubated, cold with stove, vacuum solid-phase sintering is formed；Rigid pipe
A large amount of metallurgical junction chalaza are formed at middle rope skeleton hitch connection point.
7. the crocheted porous according to claim 5 or 6 and thin-walled making laminated composite metal pipe, it is characterised in that：The crocheting
For：With a diameter of 0.2mm and 0.3mm, structure is 1 × 7, and the stainless steel 304 or 316 multiplies by 7 steel wire twistings is ultra-fine
Flexible steel cable is base material, or with a diameter of 0.5mm and 0.8mm, structure is 7 × 7, by the stainless steel of 49 steel wire twistings
The ultra-fine flexible steel cable of 304 or 316 multiplies is base material.
8. crocheted porous according to claim 1 and thin-walled making laminated composite metal pipe, it is characterised in that：Including a crocheted
Porous metal tube and a thin metallic tubd, the crocheted porous metal tube is located at thin-wall metal pipe internal surface or outer surface.
9. crocheted porous according to claim 1 and thin-walled making laminated composite metal pipe, it is characterised in that：Including two crocheteds
Porous metal tube and a thin metallic tubd, described two crocheted porous metal tubes are located at respectively thin metallic tubd surfaces externally and internally.
10. crocheted porous according to claim 1 and thin-walled making laminated composite metal pipe, it is characterised in that：It is thin including two
Wall metallic pipe and a crocheted porous metal tube, described two thin metallic tubds are located at respectively appearance in crocheted porous metal tube
Face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710030620.3A CN106641487A (en) | 2017-01-16 | 2017-01-16 | Crocheting porous and thin-walled layered metal composite tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710030620.3A CN106641487A (en) | 2017-01-16 | 2017-01-16 | Crocheting porous and thin-walled layered metal composite tube |
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| CN106641487A true CN106641487A (en) | 2017-05-10 |
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Cited By (3)
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| CN108099275A (en) * | 2018-01-16 | 2018-06-01 | 广东工业大学 | A kind of cylinder stratiform stainless steel fibre porous material and energy-absorbing multiple tube |
| CN109334052A (en) * | 2018-11-27 | 2019-02-15 | 南京航空航天大学 | A kind of effective energy-absorbing fibre metal multiple tube and its without molding Preparation Method |
| CN115178741A (en) * | 2022-06-17 | 2022-10-14 | 北京有研粉末新材料研究院有限公司 | Preparation method of porous composite pipe |
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| CN206522536U (en) * | 2017-01-16 | 2017-09-26 | 广东工业大学 | Crocheted is porous with thin-walled making laminated composite metal pipe |
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| JP2000337572A (en) * | 1999-04-30 | 2000-12-05 | Witzenmann Gmbh Metallschlauchfab Pforzheim | Refrigerant duct for air-conditioner |
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| CN115178741A (en) * | 2022-06-17 | 2022-10-14 | 北京有研粉末新材料研究院有限公司 | Preparation method of porous composite pipe |
| CN115178741B (en) * | 2022-06-17 | 2024-06-04 | 北京有研粉末新材料研究院有限公司 | Preparation method of porous composite pipe |
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Application publication date: 20170510 |