CN107117257B - A kind of composite element and its manufacturing process - Google Patents
A kind of composite element and its manufacturing process Download PDFInfo
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- CN107117257B CN107117257B CN201710235721.4A CN201710235721A CN107117257B CN 107117257 B CN107117257 B CN 107117257B CN 201710235721 A CN201710235721 A CN 201710235721A CN 107117257 B CN107117257 B CN 107117257B
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B5/00—Hulls characterised by their construction of non-metallic material
- B63B5/24—Hulls characterised by their construction of non-metallic material made predominantly of plastics
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
- B29C44/06—Making multilayered articles
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/18—Filling preformed cavities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3067—Ships
- B29L2031/307—Hulls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B2231/00—Material used for some parts or elements, or for particular purposes
- B63B2231/40—Synthetic materials
- B63B2231/42—Elastomeric materials
- B63B2231/44—Rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B2231/00—Material used for some parts or elements, or for particular purposes
- B63B2231/40—Synthetic materials
- B63B2231/42—Elastomeric materials
- B63B2231/44—Rubber
- B63B2231/48—Synthetic rubber, e.g. silicone rubber, Neoprene, polyurethane
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Laminated Bodies (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The present invention relates to a kind of composite elements, it is characterized in that, it is made of shell, 1 foaming layer of N and N foaming bodies, wherein, N is greater than 1 natural number, the shell rotation molding and there is a cavity, 1 foaming layer of N is successively inwardly laid with from the inner surface of the shell successively and each foaming layer encloses a cavity, N foaming bodies are filled in enclosed by 1 foaming layers of N made of in cavity.The invention further relates to a kind of manufacturing process of composite element.The composite element of the present invention has many advantages, such as that buoyancy is very much not heavy, light-weight, it is convenient to carry for not heavy component.
Description
Technical field
The present invention relates to component manufacturing fields, more particularly, to a kind of composite element and its manufacturing process.
Background technology
The hull of ship generally uses the materials such as steel, timber, non-ferrous metal, cement, glass fibre to make.But these
The hull of single material, defect are：The big hull of steel hull material proportion itself is heavy, perishable；Timber hull water imbibition is big,
It is perishable and damaged and heavier；Non-ferrous metal hull is perishable, involves great expense；Concrete boat material proportion is big, heaviness is easily cracked brokenly
Damage is without impact resistance；Fiber glass boat proportion is larger, is easily cracked layering, not impact resistance, maintenance difficult, manufacturing process is cumbersome, at
This height.
Plastics ships and light boats have many advantages, such as that anticorrosive, light-weight, buoyancy is not easy to sink greatly, at present small-sized pleasure-boat a big chunk
Using plastics boat body.Rotation molding is to manufacture the common method of plastic boat, however seen all-plastic boat is still currently on the market
Have the shortcomings that hull is heavier and buoyancy is small, using being restricted.
Invention content
Present invention aims to solve the deficiencies of the prior art, and provides a kind of a kind of composite elements, do not sink for buoyancy is big
Component, weight is very light, and it is very convenient to carry, if being applied to ship domain, can overcome the all-plastic canvas now produced
The ship of the small defect of heavier buoyancy, composite material manufacture is that shipwreck, properties are not superior to traditional material of the prior art
Expect the ship prepared.
The present invention is achieved by the following technical solutions：
A kind of composite element, which is characterized in that be made of shell, N-1 foaming layer and N foaming bodies, wherein N
It is greater than 1 natural number, the shell rotation molding and there is a cavity, N-1 foaming layer is successively from the interior table of the shell
Face is successively inwardly laid with and each foaming layer encloses a cavity, and N foaming bodies are filled in made of N-1 foaming layers enclosing
In cavity.
The composite element includes shell, a foaming layer and a foaming body, since the shell of component of the present invention is
Hollow, each layer expanded material is filled inside it, reduces component global density, increases buoyancy.
Further, the material identical or compatible with the shell is selected in the N-1 foaming layer.This makes shell and
Compatibility between one foaming layer, each foaming layer is more preferable, and not only component itself is lighter, and is completely embedded between each layer of component,
To reach more preferable shock resistance, anti-seismic performance, intensity and rigidity are high, durable.
Further, the shell is made of main carrier plastics, or by a kind of and additive in main carrier plastics
The mixing material that one or more mix is made, and the main carrier plastics are vinyon, polypropylene plastics, polychlorostyrene second
Alkene plastics, polyurethane plastics or EVA (ethylene-vinyl acetate copolymer) plastics, the additive are fiber powder, metal powder or face
Material；The N-1 foaming layer is polyethylene foamed, expanded polypropylene, foamed polyvinyl chloride, polyurathamc or foaming EVA
(ethylene-vinyl acetate copolymer) material or vinyon, polypropylene plastics, igelite, polyurethane plastics,
One kind and one or more of fiber powder, metal powder or pigment in EVA (ethylene-vinyl acetate copolymer) plastics mix and
At mixture expanded material；The N foaming bodies by with N-1 foaming layers, be expanded polystyrene (EPS), polyethylene foamed, hair
Foaming polypropylene, foamed polyvinyl chloride, polyurathamc or foaming EVA (ethylene-vinyl acetate copolymer), or select polystyrene
Plastics, vinyon, polypropylene plastics, igelite, polyurethane plastics or EVA (ethylene-vinyl acetate copolymer)
A kind of foaming body for the mixture material that one or more of and fiber powder, metal powder, pigment in plastics mix.
The increase of additive, can bring corresponding characteristic in the above shell, each foaming layer and foaming body, for example, being
The toughness for increasing component adds fiber powder, and the hardness in order to increase component increases metal powder, selected in order to make component have
The materials such as the increased pigment of color are mixed with main carrier.
Further, the N-1 foaming layer is foamed by the identical or compatible material with the shell, the N hairs
Foam is identical or compatible as the material of N-1 foaming layers.
Preferably, the density of material of the N foaming bodies is 1 to three/10th point of the density of material of N-1 foaming layers
One of.
The present invention also provides a kind of manufacturing process of composite element, it is characterised in that includes the following steps：
(1) it presses Components Shape and manufactures mold, shell material is added in mold, heating rotation molding postcooling demoulding obtains
To the shell with hollow cavity；
(2) preparation of N-1 foaming layer：Spray orifice is made in shell mechanical punching, N-1 layers are implanted sequentially by spray orifice
Expanded material and foaming agent mixture gradually heat under the temperature condition of not less than every layer expanded material fusing and foaming successively
Molding, successively foaming formed N-1 foaming layer by the shell inner surface successively inwardly laying and every layer enclose a cavity,
The N-1 layers of expanded material is identical material or compatibility material with the material of shell；
The preparation of (3) N foaming bodies：N-1 foaming layer spray orifices are made in shell spray orifice corresponding position, pass through shell
And the spray orifice of N-1 foaming layer injects N expanded materials and foaming agent mixture in the cavity that N-1 foaming layers are formed,
Gradually heating molding, N expanded materials are being noted with foaming agent under the temperature condition for melting and foaming not less than N expanded materials
It injects in cavity and is attached in N-1 foaming layers after being sufficiently mixed before entering, and fill made of full entire N-1 foaming layers enclosing
Cavity；
The N is the natural number more than 1.
When prepared by above-mentioned N-1 foaming layer and N foaming bodies, if had inside it new after each foaming layer foaming
Cavity is formed, then in the cavity newly formed, re-injects expanded material and foaming agent, is generated new foaming layer and is filled out
It fills, until eventually forming the new foaming body i.e. N foaming bodies full of internal cavities.
Preferably, component is made 360 degree when prepared by (3) step the N foaming bodies and rolls heating.
Further, the shell material is main carrier plastics, or by a kind of and additive in main carrier plastics
The mixture that one or more mix, wherein the main carrier plastics are vinyon, polypropylene plastics, polyvinyl chloride
Plastics, polyurethane plastics or EVA plastics, the additive are fiber powder, metal powder or pigment.
Further, the weight percent that main carrier plastic powder accounts for total shell material is 9%~100%.
Further, the N-1 foaming layer material is vinyon, polypropylene plastics, igelite, poly- ammonia
Ester plastics or EVA plastics or vinyon, polypropylene plastics, igelite, polyurethane plastics or EVA molding powders
The mixture material that one or more of a kind of and fiber powder, metal powder or pigment in material mix；The N foaming
Material is polystyrene plastics, vinyon, polypropylene plastics, igelite, polyurethane plastics or EVA plastics, or
Select one in polystyrene plastics, vinyon, polypropylene plastics, igelite, polyurethane plastics or EVA plastics
The mixture material that kind is mixed with one or more of fiber powder, metal powder, pigment.
Compared with prior art, beneficial effects of the present invention：
(1) composite element buoyancy of the invention is big, and weight is very light, and it is convenient to carry, and is applied to ship domain, can gram
Take the small defect of the heavier buoyancy of all-plastic canvas now produced, and since component itself is made of multilayer material, it can basis
The demand of the properties such as intensity, the hardness of component adjusts to achieve the goal its foaming layer and foaming body.
(2) one of the preferred embodiment as the present invention, N-1 foaming layer are that same material or property (are changed with shell
Learn property) similar in material, the two compatibility is good, can reach seamless connection, is firmly bonded；N-1 foaming layers surface (with
The one side of N foaming bodies contact) and the surface of each foaming layer be out-of-flatness and irregular, be filled with complete or endless
Whole bubble, when N-1 foaming layers are combined in N foaming bodies or are each combined between foaming layer, connection from each other
It is alternative form, close physical connection makes shell, N-1 foaming layer, N foaming bodies become an entirety, mechanical property
More excellent, shock resistance and shock resistance are more preferable, and intensity and rigidity are high, durable；What N expanded materials were also an option that is close
The lighter expanded material of degree, it is 3~10 times lighter than N-1 foaming layer materials, because the space of N foam materials filling is enclosure
The weight in most space, entire component can mitigate significantly, buoyancy bigger, be applied to ship domain, then make the present invention's
Hull is not easy to sink, lighter, carries and is more convenient, and than the ship of existing other materials manufacture more resistant to corrosion and impact resistance, and can root
According to needing to bring the characteristics such as certain toughness and hardness.
Description of the drawings
Fig. 1 is the composite element overlooking structure diagram of the present invention；
Fig. 2 is the A-A sectional views of Fig. 1 of embodiment 1；
Fig. 3 is the A-A sectional views of Fig. 1 of embodiment 2；
Fig. 4 is the composite element cross-sectional view of embodiment 4；
Wherein, each reference numeral expression is meant that：
The first foaming layers of 1-, the second foaming layers of 2- (body), 3- thirds foaming layer (body), the 4th foaming layers (body) of 4-, outside S-
Shell.
Specific implementation mode
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Embodiment 1
As shown in Fig. 1~2, the composite element of the present embodiment is by 2 groups of shell S, the first foaming layer 1 and the second foaming body
At, shell rotation molding and there is a cavity, the first foaming layer 1 is layed in the inner surface of entire shell S, the first foaming layer 1 choosing
With with shell S same materials, the second foaming body 2 is filled in enclosed by the first foaming layer 1 made of in cavity.In the present embodiment,
The composite element is hull.
Wherein, hull can be integrally formed；Can also be to be spliced by independent hull and hull bottom fixation, hull
Each independent sector be made of above-mentioned composite material.
In the present embodiment, shell S is vinyon, and the first foaming layer 1 is polyethylene foamed.Second foaming body 2 is poly-
The expanded material of the mixture of ethylene and zinc powder.
The composite element manufacturing process of the present embodiment, includes the following steps：
(1) mold is manufactured according to Ship Structure, vinyon is added in mold, heating rotation molding postcooling is de-
Mould obtains the shell S with hollow cavity；
The preparation of (2) first foaming layers 1：Spray orifice is made in shell mechanical punching, polyethylene modeling is injected by spray orifice
The mixture of material and foaming agent is gradually heated up to the temperature condition for melting and foaming not less than polyethylene, forms molten polyethylene,
The first foaming layer is formed after foaming and is layed in the inner surface of entire shell, and encloses a cavity；
The preparation of (3) second foaming bodies 2：The first foaming layer spray orifice is made in shell spray orifice corresponding position, by outer
Shell and the spray orifice of the first foaming layer inject vinyon, zinc powder and foaming agent mixing in the cavity that the first foaming layer is formed
Material is gradually heated up under the temperature condition of fusing and the foaming of the mixture not less than polyethylene and zinc powder, and foaming forms second
Cavity made of full entire first foaming layer of foaming body filling encloses；Preferably, the density of the second foaming body is the first foaming layer
Density 1/10th to one third, can preferably mitigate the weight of component itself significantly in this way, increase in the water surface
Buoyancy.
Embodiment 2
As the composite element of Fig. 1,3, the present embodiment is sent out by shell S, the first foaming layer 1, the second foaming layer 2 and third
Foam 3 forms, and shell S rotation moldings and has a cavity, and the first foaming layer 1 is layed in the inner surface of entire shell S and formation
One cavity, the second foaming layer 2 are layed in the inner surface of the first foaming layer 1 and form a cavity, and third foaming body 3 is filled in by the
In cavity made of two foaming layers 2 enclose.Wherein, shell S is made of the mixture of polypropylene and pigment, and wherein polypropylene accounts for this
The percentage of amount of the mixture is 9%, and the first foaming layer 1 is expanded polypropylene, and the second foaming layer 2 is the mixed of polypropylene and iron powder
The expanded material of object is closed, third foaming body 3 is the expanded material of the mixture of polypropylene and fiber powder.In the present embodiment, this is multiple
Condensation material component is hull.
The composite element manufacturing process of the present embodiment, includes the following steps：
(1) mold is manufactured according to Ship Structure, the mixture of polypropylene powder and pigment is added in mold, heat rotational moulding
It is molded postcooling demoulding, obtains the shell with hollow cavity；
(2) spray orifice is made in shell mechanical punching, the mixture of polypropylene powder and foaming agent is injected by spray orifice,
It is gradually heated up under the temperature condition for melting and foaming not less than polypropylene plastics, melt polypropylene foams to form the first foaming layer
It is layed in the inner surface of entire shell, the first foaming layer encloses a cavity；Then the is made in shell spray orifice corresponding position
One foaming layer spray orifice injects polypropylene by shell and the spray orifice of the first foaming layer in the cavity that the first foaming layer is formed
Powder, iron powder and foaming agent mixture are gradually heated up to mixture fusing and foaming not less than polypropylene powder and iron powder
Under temperature condition, foaming forms the second foaming layer and is laid on cavity endosexine made of the first foaming layer encloses；
(3) spray orifice is made in the same manner, same technique is used in the cavity that the second foaming layer is formed, then note
Enter the mixture of polypropylene powder and fiber powder, is gradually heated up to fusing and the hair of the mixture not less than polypropylene and fiber powder
Temperature condition is steeped, and hull is made 360 degree and rolls heating, foaming forms third foaming body 3, until full second foaming layer 2 of filling
Interior cavity.
Embodiment 3
The composite element structure of the present embodiment is with embodiment 1, and in the present embodiment, which is hull,
Shell S is made of the mixture of powder material of polyvinyl chloride, fiber powder and pigment, and wherein powder material of polyvinyl chloride accounts for the amount of the mixture
Percentage be 90%, the first foaming layer 1 is the expanded material of the mixture of polyvinyl chloride and fiber powder, and the second foaming body 2 is
The expanded material of the mixture of polyvinyl chloride, copper powder and pigment.
The composite element manufacturing process of the present embodiment, includes the following steps：
(1) mold is manufactured according to Ship Structure, mold is added in the mixture of powder material of polyvinyl chloride, fiber powder and pigment
In, heating rotation molding postcooling demoulding obtains the shell S with hollow cavity；
(2) spray orifice is made in shell mechanical punching, powder material of polyvinyl chloride and foaming agent mixture is injected by spray orifice,
It is gradually heated up under the temperature condition for melting and foaming not less than polyvinyl chloride, forms melting polyvinyl chloride, foaming forms first
Foaming layer 1 is layed in the inner surface of entire shell；
(3) the first foaming layer spray orifice is made in shell spray orifice corresponding position, passes through shell and the spray of the first foaming layer 1
Orifice injects powder material of polyvinyl chloride, copper powder, pigment and foaming agent mixture in the cavity that the first foaming layer 1 is formed, and gradually adds
Temperature to not less than powder material of polyvinyl chloride, copper powder, pigment mixture fusing and foaming temperature condition, and by hull make 360
Degree rolls heating, and foaming is formed in cavity made of full entire first foaming layer 1 of the second foaming body 2 filling encloses.
Embodiment 4：
As shown in Fig. 1,4, the composite element of the present embodiment is made of shell S, 3 foaming layers and the 4th foaming body 4,
3 foaming layers are the first foaming layer 1, the second foaming layer 2, third foaming layer 3 respectively, shell S rotation moldings and have one
Cavity, the first foaming layer 1 be layed in the inner surface of entire shell S and formed a cavity, the first foaming layer 1, the second foaming layer 2,
Third foaming layer 3 is successively laid with upwards from the inner surface of shell S successively and every layer encloses a cavity, the filling of the 4th foaming body 4
In the cavity made of being enclosed by the second foaming layer 2.Wherein, shell S is vinyon, and the first foaming layer 1 is the poly- second of foaming
Alkene, the second foaming layer 2 are the expanded materials of the mixture of polyethylene and iron powder, and third foaming layer 3 is polyethylene and fiber powder
The expanded material of mixture, the 4th foaming body 4 are the expanded materials of the mixture of polystyrene powder and pigment.
The composite element manufacturing process of the present embodiment, includes the following steps：
(1) mold is manufactured according to element structure, polyurethane powder is added in mold, heating rotation molding postcooling is de-
Mould obtains the shell with hollow cavity；
(2) spray orifice is made in shell mechanical punching, vinyon and foaming agent mixture is injected by spray orifice, by
It is gradually heated to the temperature condition for melting and foaming not less than vinyon, molten polyethylene foams to form the first foaming layer laying
In the inner surface of entire shell, the first foaming layer encloses a cavity；Then the first hair is made in shell spray orifice corresponding position
Alveolar layer spray orifice injects polyethylene modeling by shell and the spray orifice of the first foaming layer in the cavity that the first foaming layer is formed
Material, iron powder and foaming agent mixture are gradually heated up to the temperature not less than the fusing of the mixture of vinyon and iron powder and foaming
Under the conditions of degree, foaming forms the second foaming layer and is laid on cavity endosexine made of the first foaming layer encloses；By above-mentioned same
Mode makes spray orifice, and vinyon, fiber powder and foaming agent mixture are reinjected in the cavity that the second foaming layer is formed,
It is gradually heated up to not less than under the temperature condition of the fusing of the mixture of vinyon and fiber powder and foaming, foaming forms third
Foaming layer is laid on cavity endosexine made of the second foaming layer encloses；
(3) third foaming layer spray orifice is made in shell spray orifice corresponding position, passes through shell and the spray of each foaming layer
Polystyrene plastics, pigment and foaming agent mixture are injected in hole in the cavity that third foaming layer is formed, and are gradually heated up to not low
Under the temperature condition that the mixture of polystyrene plastics and pigment melts and foams, it is full whole that foaming forms the filling of the 4th foaming body
In cavity made of a third foaming layer encloses.
Embodiment 5：
The composite element structure of the present embodiment is with embodiment 2, and in the present embodiment, which is hull,
Shell S is made of the mixture of EVA plastics and pigment, and the first foaming layer 1 is the foaming of the mixture of EVA plastics and fiber powder
Material, the second foaming layer 2 are the expanded materials of the mixture of EVA plastics, aluminium powder and fiber powder, and third foaming body 3 is that foaming is poly-
Styrene.
The composite element manufacturing process of the present embodiment, includes the following steps：
(1) according to Ship Structure manufacture mold, will the mixture of EVA plastics and pigment be added mold in, heating rotational moulding at
Type postcooling demoulds, and obtains the shell with hollow cavity；
(2) spray orifice is made in shell mechanical punching, the mixed of EVA plastics, fiber powder and foaming agent is injected by spray orifice
Material is closed, is gradually heated up to form the first hair not less than under the fusing of the mixture of EVA plastics and fiber powder and the temperature condition to foam
Alveolar layer is layed in the inner surface of entire shell, and the first foaming layer encloses a cavity；Then in shell spray orifice corresponding position system
Make the first foaming layer spray orifice, is injected in the cavity that the first foaming layer is formed by shell and the spray orifice of the first foaming layer
EVA plastics, aluminium powder, fiber powder and foaming agent mixture are gradually heated up to the mixing not less than EVA plastics, aluminium powder and fiber powder
Under the temperature condition of object fusing and foaming, foaming forms the second foaming layer and is laid on table in cavity made of the first foaming layer encloses
Layer；
(3) spray orifice is made in the same manner, same technique is used in the cavity that the second foaming layer is formed, then note
Enter polystyrene plastics, be gradually heated up to not less than polystyrene fusing and blowing temperature condition, and hull is made into 360 degree of rollings
Heating, foaming form third foaming body 3, until the cavity in full second foaming layer 2 of filling.
The structure of the composite element of the above various embodiments is substantially identical, according to predetermined design and production technology,
If the second foaming layer is not stuffed entirely with the cavity that full first foaming body is formed, and only formed in the first foaming layer inner wall new
One layer of foaming layer, then can be used same technique, in the cavity that second layer foaming body the is formed new compatible foaming material of spray again
Material is filled or forms one layer of new foaming layer (or foaming body) again, i.e.,：N layers of foaming material can be formed in the inside of shell S
The full N-1 layers of foaming layer of material, wherein n-th layer foaming body filling are formed by cavity, and N described above is greater than 1 natural number.
The composite element of the present invention can be applied in each field including ship domain.
The invention is not limited in the above embodiments, if the various changes or deformation to the present invention do not depart from the present invention
Spirit and scope, if these changes and deformation belong within the scope of the claim and equivalent technologies of the present invention, then this hair
It is bright to be also intended to comprising these changes and deformation.
Claims (7)
1. a kind of composite element, which is characterized in that be made of shell, N-1 foaming layer and N foaming bodies, wherein N is
Natural number more than 2, the shell rotation molding and have a cavity, N-1 foaming layer is successively from the inner surface of the shell
It is successively inwardly laid with and each foaming layer encloses a cavity, N foaming bodies are filled in empty made of N-1 foaming layers enclosing
Intracavitary；
The shell is made of one kind in main carrier plastics with mixing material made of additives mixed, the main carrier modeling
Material is vinyon, polypropylene plastics, igelite, polyurethane plastics or EVA plastics, and the additive is fiber
The mixture of one or both of powder, metal powder or one or both of fiber powder, metal powder and pigment；
The N-1 foaming layer is polyethylene foamed, expanded polypropylene, foamed polyvinyl chloride, polyurathamc or foaming EVA
Material or vinyon, polypropylene plastics, igelite, polyurethane plastics, one kind in EVA plastics and fiber
The mixture expanded material that one or more of powder, metal powder or pigment mix；
The N foaming bodies are expanded polystyrene (EPS), polyethylene foamed, expanded polypropylene, foamed polyvinyl chloride, the poly- ammonia of foaming
Ester or foaming EVA, or select polystyrene plastics, vinyon, polypropylene plastics, igelite, polyurethane plastics
Or the foaming of mixture material that one or more of a kind of and fiber powder in EVA plastics, metal powder, pigment mix
Body；
The preparation of the N-1 foaming layer：Spray orifice is made in shell mechanical punching, N-1 layers of hair are implanted sequentially by spray orifice
Foam material and foaming agent mixture are gradually heated under the temperature condition of not less than every layer expanded material fusing and foaming successively
Type, successively foaming formed N-1 foaming layer by the shell inner surface successively inwardly laying and every layer enclose a cavity；
The preparation of the N foaming bodies：Make N-1 foaming layer spray orifices in shell spray orifice corresponding position, by shell and
The spray orifice of N-1 foaming layer injects N expanded materials and foaming agent mixture in the cavity that N-1 foaming layers are formed,
Not less than under the temperature condition that N expanded materials melt and foam, gradually heating molding, N expanded materials are being injected with foaming agent
Before be sufficiently mixed after be attached in N-1 foaming layers in injection cavity, and fill empty made of full entire N-1 foaming layers enclose
Chamber.
2. composite element according to claim 1, it is characterised in that：The N-1 foaming layer select with it is described
The identical or compatible material of shell.
3. composite element according to claim 1, it is characterised in that：The N-1 foaming layer by with the shell
Identical or compatible material foams, and the N foaming bodies are identical or compatible as the material of N-1 foaming layers.
4. composite element according to claim 1, it is characterised in that：The density of the N foaming bodies is N-1 hairs
/ 10th of alveolar layer density are to one third.
5. a kind of manufacturing process of composite element, it is characterised in that include the following steps：
(1) it presses Components Shape and manufactures mold, shell material is added in mold, heating rotation molding postcooling demoulding is had
There is the shell of hollow cavity；The shell material is the mixture made of one kind and additives mixed in main carrier plastics,
The wherein described main carrier plastics are vinyon, polypropylene plastics, igelite, polyurethane plastics or EVA plastics, institute
It is one or both of fiber powder, metal powder or one or both of fiber powder, metal powder and pigment to state additive
Mixture；
(2) preparation of N-1 foaming layer：Spray orifice is made in shell mechanical punching, N-1 layers of foaming are implanted sequentially by spray orifice
Material and foaming agent mixture are gradually heated under the temperature condition of not less than every layer expanded material fusing and foaming successively
Type, successively foaming formed N-1 foaming layer by the shell inner surface successively inwardly laying and every layer enclose a cavity, institute
It is identical material or compatibility material that N-1 layers of expanded material, which are stated, with the material of shell；The N-1 foaming layer material is polyethylene
Plastics, polypropylene plastics, igelite, polyurethane plastics or EVA plastics or vinyon, gather polypropylene plastics
One or more of one kind and fiber powder, metal powder or pigment in vinyl chloride plastic, polyurethane plastics or EVA plastic powders
The mixture material mixed；Wherein, N is greater than 2 natural number；
The preparation of (3) N foaming bodies：N-1 foaming layer spray orifices are made in shell spray orifice corresponding position, pass through shell and N-
The spray orifice of 1 foaming layer injects N expanded materials and foaming agent mixture in the cavity that N-1 foaming layers are formed, not
Less than gradually heating molding under the temperature condition that N expanded materials melt and foam, N expanded materials are with foaming agent before injection
It injects in cavity and is attached in N-1 foaming layers after being sufficiently mixed, and fill empty made of full entire N-1 foaming layers enclose
Chamber；
The N is the natural number more than 1；The N expanded materials are polystyrene plastics, vinyon, polypropylene
Plastics, igelite, polyurethane plastics or EVA plastics, or select polystyrene plastics, vinyon, polypropylene plastics
One or more of one kind and fiber powder, metal powder, pigment in material, igelite, polyurethane plastics or EVA plastics
The mixture material mixed.
6. the manufacturing process of composite element according to claim 5, it is characterised in that：Described (3) step the N is sent out
Component is made 360 degree when prepared by foam and rolls heating.
7. the manufacturing process of composite element according to claim 5, it is characterised in that：Main carrier plastics account for total shell
The weight percent of raw material is 9%~100%.
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| CN108032478B (en) * | 2017-12-12 | 2022-04-08 | 宁波格林美孚新材料科技有限公司 | Thermoplastic polyurethane foaming product with different gradient densities and forming process thereof |
| CN108099086B (en) * | 2017-12-19 | 2023-12-15 | 航天科工哈尔滨风华有限公司 | Cladding forming method and device for high-density polyurethane hard foam heat insulation lining layer lined in special-shaped thin-wall cone shell |
| CN109760256A (en) * | 2018-12-29 | 2019-05-17 | 佛山市瓯粤体育用品有限公司 | A kind of one-pass molding inside fill process |
| CN113415377A (en) * | 2021-07-29 | 2021-09-21 | 浙江灵通科技股份有限公司 | Rotational moulding boat |
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| DE3701953A1 (en) * | 1987-01-23 | 1988-08-04 | Klepper Beteiligungs Gmbh & Co | Boat hull and method of manufacturing it |
| LV12287B (en) * | 1997-11-25 | 1999-11-20 | Nikolajs Avramenko | Hull of the boat |
| DE10002185C1 (en) * | 2000-01-19 | 2001-06-07 | F2 Internat Ges M B H | Surfboard is a body of compound materials with a foam core covered by carrier layers and protected by outer watertight covering layers in a simple prodn process for a lightweight and strong surfboard |
| CN201385767Y (en) * | 2009-04-17 | 2010-01-20 | 武汉东海新技术发展有限公司 | Non-sinking buoy |
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| CN104479218A (en) * | 2014-11-20 | 2015-04-01 | 苏州新区佳合塑胶有限公司 | Low-luster high-hardness polypropylene composite material |
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| DE3701953A1 (en) * | 1987-01-23 | 1988-08-04 | Klepper Beteiligungs Gmbh & Co | Boat hull and method of manufacturing it |
| LV12287B (en) * | 1997-11-25 | 1999-11-20 | Nikolajs Avramenko | Hull of the boat |
| DE10002185C1 (en) * | 2000-01-19 | 2001-06-07 | F2 Internat Ges M B H | Surfboard is a body of compound materials with a foam core covered by carrier layers and protected by outer watertight covering layers in a simple prodn process for a lightweight and strong surfboard |
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