CN117287450A - Composite material multi-way structure and manufacturing method thereof - Google Patents
Composite material multi-way structure and manufacturing method thereof Download PDFInfo
- Publication number
- CN117287450A CN117287450A CN202311254829.XA CN202311254829A CN117287450A CN 117287450 A CN117287450 A CN 117287450A CN 202311254829 A CN202311254829 A CN 202311254829A CN 117287450 A CN117287450 A CN 117287450A
- Authority
- CN
- China
- Prior art keywords
- layer
- apparent
- cover
- outer tube
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 38
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000010410 layer Substances 0.000 claims description 279
- 239000000463 material Substances 0.000 claims description 25
- 239000000945 filler Substances 0.000 claims description 20
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 14
- 239000004917 carbon fiber Substances 0.000 claims description 14
- 239000003365 glass fiber Substances 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 239000011324 bead Substances 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 239000003562 lightweight material Substances 0.000 claims description 3
- 239000011247 coating layer Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 2
- 229920002748 Basalt fiber Polymers 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 240000007182 Ochroma pyramidale Species 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 229920006231 aramid fiber Polymers 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005058 metal casting Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/04—Clamping or clipping connections
- F16B7/044—Clamping or clipping connections for rods or tubes being in angled relationship
- F16B7/0446—Clamping or clipping connections for rods or tubes being in angled relationship for tubes using the innerside thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
-
- 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
- B32B1/00—Layered products having a non-planar shape
-
- 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
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/043—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
-
- 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
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- 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
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B21/042—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of wood
-
- 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
- B32B3/12—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 a layer of regularly- arranged cells, e.g. a honeycomb structure
-
- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
-
- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/32—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed at least two layers being foamed and next to each other
-
- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
-
- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
-
- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/106—Carbon fibres, e.g. graphite fibres
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Laminated Bodies (AREA)
Abstract
The invention relates to a composite material multi-pass structure and a manufacturing method thereof, wherein the multi-pass structure comprises: an outer tube, an apparent layer, an intermediate layer, an inner filling layer and an inner tube; the inner filling layer is filled in the outer tube; the inner pipe penetrates through the outer pipe and the inner filling layer and is fixed with the outer pipe mutually; the inner diameter of the outer tube is larger than the outer diameter of the inner tube; the apparent layers include a first apparent layer and a second apparent layer; the first apparent layer and the second apparent layer are respectively covered at two ends of the outer tube; the intermediate layer comprises a first intermediate layer and a second intermediate layer; the first intermediate layer is filled between the first apparent layer and the inner filling layer; the second intermediate layer is filled between the second apparent layer and the inner fill layer. Through passing the inner tube through the outer tube to at the inside intussuseption filling layer and the intermediate level of filling of outer tube, strengthened the wholeness and the mechanical strength of multipass structure, and restrained through the outer tube and further improved the joint strength of multipass structure, simple structure facilitates the use semi-automatization or automated process production, has improved the production efficiency of multipass structure.
Description
Technical Field
The invention belongs to the technical field of composite material space trusses, and particularly relates to a composite material multi-pass structure and a manufacturing method thereof.
Background
In truss structures such as antenna back frames and airship skeletons, a large number of multi-pass structural members exist. The multi-way structural member bears key cooperative stress in all directions, and is a key part in the truss structure product.
The current multi-way structural member comprises a metal pipe welding multi-way, a metal casting multi-way, a plastic injection molding multi-way, a mould pressing composite material multi-way based on the appearance of a circular pipe and the like.
The metal pipe welding multipass and metal casting multipass products have larger weight and are not suitable for products with the requirement of overall light weight. The mould pressing composite material with the round pipe shape is multi-way, the mould cost is higher, the artificial layering efficiency is lower, and the overall cost of the product is higher.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a composite material multi-way structure and a manufacturing method thereof. The technical problems to be solved by the invention are realized by the following technical scheme:
a first aspect of the present invention provides a composite multipass structure comprising: an outer tube, an apparent layer, an intermediate layer, an inner filling layer and an inner tube;
the inner filling layer is filled in the outer tube;
the inner pipe penetrates through the outer pipe and the inner filling layer and is fixed with the outer pipe mutually;
the inner diameter of the outer tube is larger than the outer diameter of the inner tube;
the apparent layers include a first apparent layer and a second apparent layer;
the first apparent layer and the second apparent layer are respectively covered at two ends of the outer tube;
the intermediate layer comprises a first intermediate layer and a second intermediate layer;
the first intermediate layer is filled between the first apparent layer and the inner filling layer;
the second intermediate layer is filled between the second apparent layer and the inner fill layer.
In a specific embodiment, the inner filling layer includes: a mixture of resin and one or more of carbon felt, glass beads, chopped carbon fibers and chopped glass fibers.
In a specific embodiment, the inner tube is a multi-way tube or a plurality of unconnected straight tubes.
In a specific embodiment, the first intermediate layer comprises a first cover layer;
the second intermediate layer includes a second cover layer.
In a specific embodiment, the first intermediate layer comprises a first cover layer and a first outer filler layer;
the second intermediate layer comprises a second cover layer and a second outer filling layer;
the first outer filling layer is filled between the first cover layer and the first apparent layer;
the second outer filler layer is filled between the second cover layer and the second apparent layer.
In a specific embodiment, the materials of the first apparent layer, the second apparent layer, the first cover layer, and the second cover layer each comprise a fibrous prepreg.
In a specific embodiment, the materials of the first outer filling layer and the second outer filling layer each comprise a lightweight material.
The second aspect of the present invention provides a method for preparing a composite multipass structure, for preparing the composite multipass structure provided in the first aspect of the present invention, comprising the steps of:
s1: a preset hole is formed in the side wall of the outer tube, and the inner tube passes through the preset hole;
s2: paving a first intermediate material in the position, close to one end of the outer tube, inside the outer tube to form a first intermediate layer;
s3: laying a first apparent layer on one end of the outer tube;
s4: filling an inner filler on the surface of the first intermediate layer far away from the first apparent layer to form an inner filler layer;
s5: covering a second intermediate material on the surface of the inner filling layer to form a second intermediate layer;
s6: paving a second apparent layer on the surface of the second intermediate layer and the other end of the outer tube to obtain a multi-pass structure initial piece;
s7: placing the multi-pass structure initial piece in a mould, and solidifying to obtain a multi-pass structure blank;
s8: and carrying out post-treatment on the multi-pass structure blank to obtain the multi-pass structure.
In a specific embodiment, the first intermediate layer comprises a first cover layer; the second intermediate layer includes a second cover layer;
the specific steps of the step S2 are as follows: laying a first cover inside the outer tube at a position close to one end of the outer tube to form a first cover layer;
the specific steps of the step S5 are as follows: a second cover is applied over the surface of the inner fill layer to form a second cover layer.
In a specific embodiment, the first intermediate layer comprises a first cover layer and a first outer filler layer; the second intermediate layer comprises a second cover layer and a second outer filling layer;
the step S2 includes the steps of:
s201: laying a first cover inside the outer tube at a position close to one end of the outer tube to form a first cover layer;
s202: covering a first outer filling material on the surface of the first covering layer close to the end to form a first outer filling layer;
the step S5 includes the steps of:
s501: covering a second cover on the surface of the inner filling layer to form a second cover layer;
s502: and covering a second outer filling on the surface of the second covering layer to form a second outer filling layer.
Compared with the prior art, the invention has the beneficial effects that:
according to the composite material multi-way structure, the inner pipe passes through the outer pipe, the inner filling layer and the middle layer are filled in the outer pipe, the integrity and the mechanical strength of the multi-way structure are enhanced, and the connection strength of the multi-way structure is further improved through the constraint of the outer pipe 1.
Drawings
FIG. 1 is a schematic structural diagram of a composite material multi-pass structure according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a composite multipass structure provided by an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a composite multipass structure provided by an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a composite material multi-pass structure according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of a composite multipass structure provided by an embodiment of the present invention;
FIG. 6 is a cross-sectional view of a composite multipass structure provided by an embodiment of the present invention;
reference numerals:
1: an outer tube; 2: an apparent layer; 201: a first apparent layer; 202: a second apparent layer; 3: an intermediate layer; 311: a first cover layer; 312: a second cover layer; 321: a first outer fill layer; 322: a second outer fill layer; 4: an inner filling layer; 5: an inner tube; 6: and (5) an outer filling layer.
Detailed Description
The present invention will be described in further detail with reference to specific examples, but embodiments of the present invention are not limited thereto.
Example 1
Referring to fig. 1, 2, 3, 4, 5 and 6, a composite multipass structure includes: an outer tube 1, an apparent layer 2, an intermediate layer 3, an inner filling layer 4 and an inner tube 5. The inner filling layer 4 is filled inside the outer tube 1. The inner tube 5 penetrates the outer tube 1 and the inner filling layer 4 and is fixed to the outer tube 1. The inner diameter of the outer tube 1 is larger than the outer diameter of the inner tube 5. The apparent layer 2 includes a first apparent layer 201 and a second apparent layer 202, and the first apparent layer 201 and the second apparent layer 202 are respectively covered at both ends of the outer tube 1. The intermediate layer 3 includes a first intermediate layer filled between the first apparent layer 201 and the inner filling layer 4, and a second intermediate layer filled between the second apparent layer 202 and the inner filling layer 4.
Further, the inner filling layer 4 includes: a mixture of resin and one or more of carbon felt, glass beads, chopped carbon fibers and chopped glass fibers. The inner pipe 5 is a multi-way pipe or a plurality of unconnected straight pipes.
According to the composite material multi-pass structure provided by the embodiment, the integrity and the mechanical strength of the multi-pass structure are enhanced by passing the inner tube 5 through the outer tube 1 and filling the inner filling layer 4 and the middle layer 3 in the outer tube 1, and the connection strength of the multi-pass structure is further improved by restraining the outer tube 1. The apparent layers 2 covered at the two ends of the outer tube 1 enhance the surface beauty of the multi-pass structure and further enhance the overall strength of the multi-pass structure. The multipass structure that this embodiment provided is strong overall strength, simple structure, and the production of being convenient for can nimble adjust the type of inner tube 5 according to actual production demand, can be applicable to automatic or semi-automatization's technology shaping.
Example two
Referring to fig. 1, 2 and 3, the present embodiment is further defined on the basis of the first embodiment, in which the first intermediate layer includes a first cover layer 311, and the second intermediate layer includes a second cover layer 312. The materials of the first apparent layer 201, the second apparent layer 202, the first cover layer 311, and the second cover layer 312 each include a fibrous prepreg.
Specifically, the materials of the first and second apparent layers 201 and 202, the first and second cover layers 311 and 312 each include carbon fibers, glass fibers, basalt fibers, and the like. The inner tube 5 is two unconnected straight tubes. Preferably, as shown in fig. 2, two straight pipes are disposed perpendicular to each other.
According to the composite material multi-pass structure provided by the embodiment, the inner pipe 5 passes through the outer pipe 1, the inner filling layer 4 and the middle layer 3 are filled in the outer pipe 1, the fiber prepreg is used as the middle layer 3, the integrity and the mechanical strength of the multi-pass structure are enhanced, and the connection strength of the multi-pass structure is further improved by restraining the outer pipe 1.
Example III
Referring to fig. 4, 5 and 6, the present embodiment is further defined on the basis of the first embodiment, in which the first intermediate layer includes a first cover layer 311 and a first outer filling layer 321, the second intermediate layer includes a second cover layer 312 and a second outer filling layer 322, the first outer filling layer 321 is filled between the first cover layer 311 and the first apparent layer 201, and the second outer filling layer 322 is filled between the second cover layer 312 and the second apparent layer 202. The materials of the first apparent layer 201, the second apparent layer 202, the first cover layer 311, and the second cover layer 312 each include a fibrous prepreg. The materials of the first and second outer filling layers 321 and 322 each comprise a lightweight material.
Specifically, the materials of the first and second apparent layers 201 and 202, the first and second cover layers 311 and 312 each include carbon fibers, glass fibers, basalt fibers, and the like. The materials of the first outer filling layer 321 and the second outer filling layer 322 comprise light materials such as rigid foam, balsa wood, aluminum honeycomb and the like. The inner tube 5 is a multi-way tube. Preferably, as shown in fig. 2, the inner tube 5 is a five-way tube.
According to the composite material multi-pass structure provided by the embodiment, the inner pipe 5 passes through the outer pipe 1, the inner filling layer 4 and the middle layer 3 are filled in the outer pipe 1, and the light materials such as rigid foam, balsa wood and aluminum honeycomb and the fiber prepreg are used as the middle layer 3, so that the integrity and the mechanical strength of the multi-pass structure are enhanced, and the connection strength of the multi-pass structure is further improved by the constraint of the outer pipe 1.
Example IV
A method for preparing a composite multipass structure for preparing the composite multipass structure provided in examples one to three, comprising the steps of:
s1: a preset hole is formed in the side wall of the outer tube 1, and the inner tube 5 passes through the preset hole.
Specifically, step S1 includes the steps of:
s101: the outer tube 1 is obtained by using materials such as carbon fiber, glass fiber, aramid fiber, high-strength polyethylene fiber, basalt fiber and the like and using the existing automatic and semi-automatic processes such as tube twisting, pultrusion, tube winding and tube winding, and preset holes are formed in corresponding positions on the side wall of the outer tube 1 by using modes such as machining, water cutting, laser cutting and the like.
S102: the inner tube 5 is obtained by using materials such as carbon fiber, glass fiber, aramid fiber, high-strength polyethylene fiber, basalt fiber and the like and adopting the existing automatic and semi-automatic processes such as tube twisting, pultrusion, tube winding and the like. The inner tube 5 is a multi-way tube or a plurality of straight tubes.
S103: the inner tube 5 is passed through the preset hole.
S2: a first intermediate layer is formed by laying a first intermediate material inside the outer tube 1 at a position near one end of the outer tube 1.
Specifically, a first intermediate layer is formed by laying a first intermediate material inside the outer tube 1 near the bottom of the outer tube 1.
S3: a first apparent layer 201 is laid down at one end of the outer tube 1.
Specifically, a carbon fiber prepreg, a glass fiber prepreg, or a basalt fiber prepreg, which is the same as the outer diameter of the outer tube 1, is cut to obtain a first apparent layer 201, and the first apparent layer 201 is laid on the bottom end of the outer tube 1. The first apparent layer 201 covers the lower surface of the first intermediate layer and the bottom surface of the outer tube 1.
S4: an inner filler is filled on the surface of the first intermediate layer remote from the first apparent layer 201, forming an inner filler layer 4.
Specifically, the inner filling layer 4 is formed by mixing one or more of carbon felt, glass beads, chopped carbon fibers and chopped glass fibers with a resin and filling the mixture onto the upper surface of the first intermediate layer.
S5: a second intermediate material is coated on the surface of the inner filling layer 4 to form a second intermediate layer.
Specifically, a second intermediate material is coated on the upper surface of the inner filling layer 4 to form a first intermediate layer.
S6: a second apparent layer 202 is laid on the surface of the second intermediate layer and the other end of the outer tube 1 to obtain a multi-pass structure initial piece.
Specifically, a carbon fiber prepreg, a glass fiber prepreg, or a basalt fiber prepreg, which is the same as the outer diameter of the outer tube 1, is cut to obtain a second apparent layer 202, and the second apparent layer 202 is laid on the top end of the outer tube 1. The second apparent layer 202 covers the upper surface of the second intermediate layer and the top surface of the outer tube 1.
S7: and placing the multi-pass structure initial piece in a mould, and curing to obtain a multi-pass structure blank.
Specifically, the die comprises an upper metal plate and a lower metal plate, a multi-pass structure initial piece is placed between the upper metal plate and the lower metal plate, and a multi-pass structure blank is obtained through heating, pressurizing and solidifying by using a die press.
S8: and (5) carrying out post-treatment on the multi-pass structure blank to obtain the multi-pass structure.
Specifically, polishing, cleaning and spraying the blank of the multi-pass structure to obtain the multi-pass structure.
The manufacturing method of the composite material multi-way structure is low in production cost, the multi-way structure can be manufactured without reverse molding, the process is simple, and the production efficiency of the multi-way structure is greatly improved. The metal plate which is low in cost and easy to manufacture is used as a die tool, the production cost of the multi-pass structure is further reduced, the inner filling layer 4 is filled in the outer tube 1, the integrity and the filling efficiency of the multi-pass structure are improved, the shapes of the first apparent layer 201, the second apparent layer 202, the first intermediate layer and the second intermediate layer are all round, the process forming of automation or semi-automation is convenient to use, the problem that the product layering efficiency in the traditional multi-pass structure production is low is avoided, and the production efficiency of the multi-pass structure is effectively improved.
Example five
The present embodiment further defines, on the basis of the fourth embodiment, that the first intermediate layer includes a first cover layer 311; the second intermediate layer includes a second cover layer 312.
The specific steps of the step S2 are as follows: the first cover is laid inside the outer tube 1 at a position near one end of the outer tube 1, forming a first cover layer 311.
Preferably, the carbon fiber prepreg or the glass fiber prepreg or the basalt fiber prepreg which is the same as the inner diameter of the outer tube 1 is cut to obtain a first cover, and the first cover is laid on the inside of the outer tube 1 near the bottom to form a first cover layer 311.
The specific steps of the step S5 are as follows: a second cover is laid over the surface of the inner filling layer 4 to form a second cover layer 312.
Preferably, a carbon fiber prepreg or a glass fiber prepreg or a basalt fiber prepreg which is the same as the inner diameter of the outer tube 1 is cut to obtain a second cover, and the second cover is covered on the upper surface of the inner filling layer 4 to form a second cover layer 312.
The manufacturing method of the composite material multi-way structure is low in production cost, the multi-way structure can be manufactured without reverse molding, the process is simple, and the production efficiency of the multi-way structure is greatly improved. The metal plate which is low in cost and easy to manufacture is used as a die tool, the production cost of the multi-pass structure is further reduced, the inner filling layer 4 is filled in the outer tube 1, the integrity and the filling efficiency of the multi-pass structure are improved, the shapes of the first apparent layer 201, the second apparent layer 202, the first covering layer 311 and the second covering layer 312 are all round, the automatic or semi-automatic process forming is convenient to use, the problem that the product layering efficiency in the traditional multi-pass structure production is low is avoided, and the production efficiency of the multi-pass structure is effectively improved.
Example five
The present embodiment further defines that, on the basis of the fourth embodiment, the first intermediate layer includes the first cover layer 311 and the first outer filling layer 321, and the second intermediate layer includes the second cover layer 312 and the second outer filling layer 322.
Step S2 comprises the steps of:
s201: the first cover is laid inside the outer tube 1 at a position near one end of the outer tube 1, forming a first cover layer 311.
Specifically, a carbon fiber prepreg or a glass fiber prepreg or a basalt fiber prepreg which is the same as the inner diameter of the outer tube 1 is cut to obtain a first cover, and the first cover is covered on the inner portion of the outer tube 1 near the bottom to form a first cover layer 311.
S202: the first outer packing layer 321 is formed by covering the surface of the first cover layer 311 near one end of the outer tube 1 with a first outer packing.
Specifically, a light material such as a rigid foam or balsawood or aluminum honeycomb having the same inner diameter as the outer tube 1 is cut to obtain a first outer filler, and the first outer filler is covered on the lower surface of the first cover layer 311 to form a first outer filler layer 321.
Step S5 comprises the steps of:
s501: a second cover is laid over the surface of the inner filling layer 4 to form a second cover layer 312.
Specifically, a carbon fiber prepreg or a glass fiber prepreg or a basalt fiber prepreg which is the same as the inner diameter of the outer tube 1 is cut to obtain a second cover, and the second cover is covered on the upper surface of the inner filling layer 4 to form a second cover layer 312.
S502: a second outer filler is coated on the surface of the second coating layer 312 to form a second outer filler layer 322.
Specifically, a light material such as a rigid foam or balsa wood or aluminum honeycomb having the same inner diameter as the outer tube 1 is cut to obtain a second outer filling, and the second outer filling is covered on the upper surface of the second cover layer 312 to form a second outer filling layer 322.
The manufacturing method of the composite material multi-way structure is low in production cost, the multi-way structure can be manufactured without reverse molding, the process is simple, and the production efficiency of the multi-way structure is greatly improved. The metal plate which is low in cost and easy to manufacture is used as a die tool, so that the production cost of the multi-pass structure is further reduced, the inner filling layer 4 is filled in the outer tube 1, the integrity and the filling efficiency of the multi-pass structure are improved, the shapes of the first apparent layer 201, the second apparent layer 202, the first covering layer 311, the second covering layer 312, the first outer filling layer 321 and the second outer filling layer 322 are all round, the automatic or semi-automatic process forming is convenient to use, the problem that the product layering efficiency in the traditional multi-pass structure production is low is avoided, and the production efficiency of the multi-pass structure is effectively improved.
The foregoing is a further detailed description of the invention in connection with the preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.
Claims (10)
1. A composite multipass structure comprising: an outer tube (1), an apparent layer (2), an intermediate layer (3), an inner filling layer (4) and an inner tube (5);
the inner filling layer (4) is filled in the outer tube (1);
the inner pipe (5) penetrates through the outer pipe (1) and the inner filling layer (4) and is mutually fixed with the outer pipe (1);
the inner diameter of the outer tube (1) is larger than the outer diameter of the inner tube (5);
the apparent layer (2) comprises a first apparent layer (201) and a second apparent layer (202);
the first apparent layer (201) and the second apparent layer (202) are respectively covered at two ends of the outer tube (1);
the intermediate layer (3) comprises a first intermediate layer and a second intermediate layer;
the first intermediate layer is filled between the first apparent layer (201) and the inner filling layer (4);
the second intermediate layer is filled between the second apparent layer (202) and the inner filling layer (4).
2. A composite multipass structure as defined in claim 1, wherein said inner filling layer (4) comprises: a mixture of resin and one or more of carbon felt, glass beads, chopped carbon fibers and chopped glass fibers.
3. A composite material multi-pass structure according to claim 1, characterized in that the inner tube (5) is a multi-pass tube or a plurality of unconnected straight tubes.
4. A composite multipass structure according to claim 1, wherein the first intermediate layer comprises a first cover layer (311);
the second intermediate layer includes a second cover layer (312).
5. A composite multipass structure according to claim 1, wherein said first intermediate layer comprises a first cover layer (311) and a first outer filler layer (321);
the second intermediate layer includes a second cover layer (312) and a second outer fill layer (322);
the first outer filling layer (321) is filled between the first cover layer (311) and the first apparent layer (201);
the second outer filler layer (322) is filled between the second cover layer (312) and the second apparent layer (202).
6. A composite multipass construction according to claim 4 or 5, wherein the materials of said first apparent layer (201), said second apparent layer (202), said first cover layer (311) and said second cover layer (312) each comprise fibrous prepregs.
7. A composite material multipass construction according to claim 5, wherein the materials of said first outer filling layer (321) and said second outer filling layer (322) each comprise a lightweight material.
8. A method for preparing a composite multipass structure, for preparing a composite multipass structure according to any one of claims 1 to 7, comprising the steps of:
s1: a preset hole is formed in the side wall of the outer tube (1), and the inner tube (5) passes through the preset hole;
s2: laying a first intermediate material in the outer tube (1) at a position close to one end of the outer tube (1) to form a first intermediate layer;
s3: -laying a first apparent layer (201) at one end of the outer tube (1);
s4: filling an inner filler on the surface of the first intermediate layer far away from the first apparent layer (201) to form an inner filler layer (4);
s5: covering a second intermediate material on the surface of the inner filling layer (4) to form a second intermediate layer;
s6: paving a second apparent layer (202) on the surface of the second intermediate layer and the other end of the outer tube (1) to obtain a multi-pass structure initial piece;
s7: placing the multi-pass structure initial piece in a mould, and solidifying to obtain a multi-pass structure blank;
s8: and carrying out post-treatment on the multi-pass structure blank to obtain the multi-pass structure.
9. A method of producing a composite multipass structure as defined in claim 8 wherein said first intermediate layer comprises a first cover layer (311); the second intermediate layer includes a second cover layer (312);
the specific steps of the step S2 are as follows: laying a first cover inside the outer tube (1) at a position close to one end of the outer tube (1) to form a first cover layer (311);
the specific steps of the step S5 are as follows: a second cover is applied to the surface of the inner filling layer (4) to form a second cover layer (312).
10. The method of manufacturing a composite multipass structure of claim 8, wherein said first intermediate layer comprises a first cover layer (311) and a first outer fill layer (321); the second intermediate layer includes a second cover layer (312) and a second outer fill layer (322);
the step S2 includes the steps of:
s201: laying a first cover inside the outer tube (1) at a position close to one end of the outer tube (1) to form a first cover layer (311);
s202: covering a first outer filler on a surface of the first cover layer (311) near the one end to form a first outer filler layer (321);
the step S5 includes the steps of:
s501: covering a second cover on the surface of the inner filling layer (4) to form a second cover layer (312);
s502: a second outer filler is coated on the surface of the second coating layer (312) to form a second outer filler layer (322).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311254829.XA CN117287450A (en) | 2023-09-26 | 2023-09-26 | Composite material multi-way structure and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311254829.XA CN117287450A (en) | 2023-09-26 | 2023-09-26 | Composite material multi-way structure and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117287450A true CN117287450A (en) | 2023-12-26 |
Family
ID=89253069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311254829.XA Pending CN117287450A (en) | 2023-09-26 | 2023-09-26 | Composite material multi-way structure and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117287450A (en) |
-
2023
- 2023-09-26 CN CN202311254829.XA patent/CN117287450A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5513477A (en) | Segmented, graded structural utility poles | |
| EP2234790B1 (en) | A method of producing a composite structure via intermediate products, the related apparatus and a composite structure obtainable by the method | |
| CN103003060B (en) | Modular organization composite beam | |
| CN105856589A (en) | Integrated molding method for high-temperature-resistant heat-insulation wave-transmissive radome with honeycomb interlayer C | |
| KR20160078361A (en) | Method for fabricating an object | |
| CN106414066A (en) | Reinforced composite structure | |
| CA2270567C (en) | Reinforced plastic container | |
| CN111231442A (en) | Large-size multi-axial composite material bearing plate taking pultruded profile as sandwich and preparation method thereof | |
| CN103182802A (en) | Sandwich core material | |
| CN212021859U (en) | Large-size multi-axial composite material bearing plate taking pultruded profile as sandwich | |
| US7547371B2 (en) | Composite architectural column | |
| CN114131954A (en) | Preparation method of grid structure reinforced foam sandwich composite material based on secondary forming | |
| CN117287450A (en) | Composite material multi-way structure and manufacturing method thereof | |
| CN113531224A (en) | Novel soft prefabricated overhead steam heat-preservation pipe and manufacturing method | |
| CN210767479U (en) | Steel-continuous fiber composite bar reinforced concrete floor | |
| CN106313590A (en) | Method for manufacturing three-wall oil storage tank made of fiber-wound composite | |
| CN217197233U (en) | Micro-nano colloidal fiber coagulation structure | |
| CN202561278U (en) | Glass reinforced plastic reinforced pipe relating to continuous tensile braiding molding | |
| CN201610516U (en) | Composite material arch structural beam | |
| CN208962535U (en) | A kind of ply angles of large scale wind power machine root of blade | |
| CN114132012A (en) | Environment-friendly material core material modularized assembled pipeline and manufacturing method thereof | |
| CN209637033U (en) | Simple wall-body | |
| CN113942244B (en) | Glass fiber reinforced plastic storage tank field assembly construction process | |
| JPH01166937A (en) | Long-sized, light-weight and fiber-reinforced composite draw molding and its manufacture | |
| CN213936443U (en) | Box structure on compound power battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |