CN112762342A - Composite material structural section capable of being freely assembled and preparation method thereof - Google Patents
Composite material structural section capable of being freely assembled and preparation method thereof Download PDFInfo
- Publication number
- CN112762342A CN112762342A CN202110037496.XA CN202110037496A CN112762342A CN 112762342 A CN112762342 A CN 112762342A CN 202110037496 A CN202110037496 A CN 202110037496A CN 112762342 A CN112762342 A CN 112762342A
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- matrix
- section
- resin
- freely
- section bar
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Classifications
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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
- F16S—CONSTRUCTIONAL ELEMENTS IN GENERAL; STRUCTURES BUILT-UP FROM SUCH ELEMENTS, IN GENERAL
- F16S3/00—Elongated members, e.g. profiled members; Assemblies thereof; Gratings or grilles
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- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
- B29C70/521—Pultrusion, i.e. forming and compressing by continuously pulling through a die and impregnating the reinforcement before the die
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- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
- B29C70/525—Component parts, details or accessories; Auxiliary operations
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
- B29C70/525—Component parts, details or accessories; Auxiliary operations
- B29C70/528—Heating or cooling
Abstract
The invention discloses a freely-assembled composite material structural section and a preparation method thereof, and the freely-assembled composite material structural section comprises a section body, wherein clamping grooves are formed in the periphery of the section body, a through hole is formed in the middle of the section body, the section of the section body is a cube, the side length of the section is 40 mm, the diameter of the through hole is 9.8 mm, and a reinforced fiber matrix and a resin matrix are arranged inside the section body. The composite material structural section capable of being freely assembled and the preparation method thereof have the advantages that the production process is simple, the production and forming temperature is lower than 200 ℃, the heating time is short and is less than 10 minutes, the mold cost is low, and in addition, the composite material structural section serving as a non-metal composite material has very excellent electrical insulation performance and very good chemical corrosion resistance.
Description
Technical Field
The invention relates to the technical field of composite materials, in particular to a composite material structural section capable of being freely assembled and a preparation method thereof.
Background
The industrial aluminum profile is an alloy material taking aluminum as a main component, aluminum rods are hot-melted and extruded to obtain aluminum materials with different cross-sectional shapes, but the proportion of the added alloy is different, and the mechanical properties and the application fields of the produced industrial aluminum profile are also different. In general, industrial aluminum profiles refer to all aluminum profiles except for aluminum profiles for building doors and windows, curtain walls, indoor and outdoor decoration, and building structures.
The existing industrial aluminum profile is formed by high-temperature extrusion of aluminum alloy, the relative energy consumption is high in the production process, the cost of a die is high, production equipment and production procedures are complex, and the requirements cannot be met in the fields of electric insulation and chemical corrosion resistance.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a composite material structural section capable of being freely assembled and a preparation method thereof, and solves the problem that production equipment and production procedures are complex.
In order to achieve the purpose, the invention is realized by the following technical scheme: the composite material structural section capable of being freely assembled comprises a section body, clamping grooves are formed in the periphery of the section body, a through hole is formed in the middle of the section body, the cross section of the section body is a cube, the side length of the cross section is 40 mm, the diameter of the through hole is 9.8 mm, and a reinforcing fiber matrix and a resin matrix are arranged inside the section body.
Preferably, the length of the clamping groove is 8.3 mm, and the distance between the inner walls of the clamping groove is 20.6 mm.
Preferably, the reinforcing fiber matrix and the resin matrix are distributed in a cross manner on the section of the profile body, the reinforcing fiber matrix is distributed on the edge of the profile body, and the resin matrix is distributed in the middle of the profile body.
Preferably, the clamping groove is rectangular, and the connection part of the two adjacent side edges of the inner side edge of the clamping groove (2) is arranged in a bevel edge mode.
Preferably, the opening part of the clamping groove is provided with a limiting strip, and four corners of the section body are provided with chamfers.
A composite material structural section capable of being freely assembled also comprises a preparation method, and the preparation method comprises the following specific steps:
the first step is to arrange a production line and arrange dry fibers according to the reinforcing material laying structure of the product.
The second step, impregnating resin with fiber in three ways of pressureless impregnation, low-pressure impregnation or medium-high pressure impregnation,
a, pressureless gum dipping, namely, a reinforcing fiber matrix is directly dipped in matrix resin contained in a semi-open manner;
b, performing low-pressure gum dipping on a gum dipping box in a low-pressure gum dipping mode;
and C, dipping the mixture in a sealed dipping box at a medium and high pressure and keeping a certain pressure.
Thirdly, the mould is heated and cured, the reinforced fiber matrix impregnated with the resin is continuously cured through the mould,
the heating temperature is 120-180 ℃, and the pultrusion speed is 20-80 cm/min.
And fourthly, naturally cooling and cutting, demoulding the section bar product under clamping and traction, naturally cooling and cutting.
Preferably, the reinforcing fiber matrix 4 is a glass fiber matrix or a carbon fiber matrix.
Preferably, the resin matrix 5 is an unsaturated polyester resin matrix or a vinyl ester resin matrix or an epoxy resin matrix or a polyurethane resin matrix or an epoxy resin matrix.
Advantageous effects
The invention provides a composite material structural section capable of being freely assembled and a preparation method thereof. Compared with the prior art, the method has the following beneficial effects:
(1) the industrial section bar of the fiber reinforced composite material prepared by the method provided by the invention not only can save energy consumption compared with the processing technology of the industrial section bar, simplify the working procedure and improve the production efficiency, but also has higher mechanical strength, good electrical insulation performance and chemical corrosion resistance compared with the industrial section bar, can completely meet the use requirement, and has outstanding performance in the field of insulation requirements or chemical corrosion resistant environment.
(2) The production process of the invention is simple, the production molding temperature is less than 200 ℃, the heating time is short, less than 10 minutes, the mold cost is low, and the composite material structural section material which can be freely assembled and the preparation method thereof are used as a non-metal composite material and have excellent electrical insulation performance and good chemical corrosion resistance.
Drawings
FIG. 1 is a top view of an outer structure of the present invention;
fig. 2 is a side view of the outer structure of the present invention.
In the figure: 1-section bar body, 2-clamping groove, 3-through hole, 4-reinforced fiber matrix, 5-resin matrix and 6-spacing strip.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a composite material structural section capable of being freely assembled and a preparation method thereof comprise a section body 1, wherein clamping grooves 2 are formed in the periphery of the section body 1, clamping grooves are formed in four sides, the clamping grooves are simple and practical in design, and can be well matched with T-shaped strips. The middle of the section bar body 1 is provided with a through hole 3, the section of the section bar body 1 is a cube, the side length of the section is 40 mm, the diameter of the through hole 3 is 9.8 mm, a reinforced fiber matrix 4 and a resin matrix 5 are arranged inside the section bar body 1, the length of the clamping groove 2 is 8.3 mm, the distance between the inner walls of the clamping groove 2 is 20.6 mm, the reinforced fiber matrix 4 and the resin matrix 5 are in cross distribution on the section of the section bar body 1, the reinforced fiber matrix 4 is distributed on the edge of the section bar body 1, the resin matrix 5 is distributed in the middle of the section bar body 1, the clamping groove 2 is rectangular, the inner wall of the clamping groove 2 is arranged in a bevel edge, a limiting strip 6 is arranged at the opening of the clamping groove 2, and four corners of the section bar body 1 are arranged in a chamfer angle. A composite material structural section capable of being freely assembled also comprises a preparation method, and the preparation method comprises the following specific steps:
the first step is to arrange a production line and arrange dry fibers according to the reinforcing material laying structure of the product.
The second step, impregnating resin with fiber in three ways of pressureless impregnation, low-pressure impregnation or medium-high pressure impregnation,
a, pressureless gum dipping, namely, a reinforcing fiber matrix is directly dipped in matrix resin contained in a semi-open manner;
b, performing low-pressure gum dipping on a gum dipping box in a low-pressure gum dipping mode;
and C, dipping the mixture in a sealed dipping box at a medium and high pressure and keeping a certain pressure.
Thirdly, the mould is heated and cured, the reinforced fiber matrix impregnated with the resin is continuously cured through the mould,
the heating temperature is 120-180 ℃, and the pultrusion speed is 20-80 cm/min.
And fourthly, naturally cooling and cutting, demoulding the section bar product under clamping and traction, naturally cooling and cutting.
Preferably, the reinforcing fiber matrix 4 in the present invention is a glass fiber matrix or a carbon fiber matrix; the resin matrix 5 is an unsaturated polyester resin matrix or a vinyl ester resin matrix or an epoxy resin matrix or a polyurethane resin matrix or an epoxy resin matrix; in order to meet different performance requirements of industrial profiles, different reinforcing fiber matrix and matrix resin need to be selected, and further, special performance requirements need to be met, such as the mixed industrial profile performance of different reinforcing fiber matrix and matrix resin as follows:
the first method comprises the following steps: when the glass fiber matrix and the unsaturated polyester resin matrix are mixed, the industrial profile has good comprehensive performance, high cost performance and wide applicability.
And the second method comprises the following steps: when the glass fiber matrix and the vinyl ester resin matrix are mixed, the industrial section has good mechanical property and good chemical corrosion resistance such as acid resistance, alkali resistance and the like.
And the third is that: when the glass fiber matrix and the epoxy resin matrix are mixed, the industrial profile has good mechanical property and excellent insulating property.
And fourthly: when the glass fiber matrix and the polyurethane resin matrix are mixed, the industrial profile has high fiber content, high mechanical property and impact resistance.
And a fifth mode: when the carbon fiber matrix and the epoxy resin matrix are mixed, the industrial profile has excellent mechanical property, light weight and aviation use.
And those not described in detail in this specification are well within the skill of those in the art.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A composite material structural section capable of being freely assembled comprises a section body (1), and is characterized in that: the section bar is characterized in that clamping grooves (2) are formed in the periphery of the section bar body (1), a through hole (3) is formed in the middle of the section bar body (1), the cross section of the section bar body (1) is a cube, the side length of the cross section is 40 mm, the diameter of the through hole (3) is 9.8 mm, and a reinforced fiber matrix (4) and a resin matrix (5) are arranged inside the section bar body (1).
2. A freely assemblable composite structural profile as claimed in claim 1, wherein: the length of the clamping groove (2) is 8.3 mm, and the distance between the inner walls of the clamping groove (2) is 20.6 mm.
3. A freely assemblable composite structural profile as claimed in claim 1, wherein: the reinforced fiber matrix (4) and the resin matrix (5) are distributed in a cross way on the section of the profile body (1).
4. A freely assemblable composite structural profile as claimed in claim 1, said matrix of reinforcing fibres (4) being distributed at the edges of the profile body (1), and said matrix of resin (5) being distributed in the middle of the profile body (1).
5. A freely assemblable composite structural profile as claimed in claim 1, wherein: the clamping groove (2) is rectangular, and the connection part of the adjacent two side edges of the inner side edge of the clamping groove (2) is arranged in a bevel edge mode.
6. A freely assemblable composite structural profile as claimed in claim 1, wherein: the opening part of draw-in groove (2) is equipped with spacing (6), the four corners department in section bar body (1) cross-section is the chamfer setting.
7. A freely assemblable composite structural profile as claimed in claim 1, further comprising a method of preparation, comprising the steps of:
the first step is to arrange a production line and arrange dry fibers according to the reinforcing material laying structure of the product.
The second step, impregnating resin with fiber in three ways of pressureless impregnation, low-pressure impregnation or medium-high pressure impregnation,
a, pressureless gum dipping, namely, a reinforcing fiber matrix is directly dipped in matrix resin contained in a semi-open manner;
b, performing low-pressure gum dipping on a gum dipping box in a low-pressure gum dipping mode;
and C, dipping the mixture in a sealed dipping box at a medium and high pressure and keeping a certain pressure.
Thirdly, the mould is heated and cured, the reinforced fiber matrix impregnated with the resin is continuously cured through the mould,
the heating temperature is 120-180 ℃, and the pultrusion speed is 20-80 cm/min.
And fourthly, naturally cooling and cutting, demoulding the section bar product under clamping and traction, naturally cooling and cutting.
8. A freely assemblable composite structural profile as claimed in claim 7, wherein: the reinforced fiber matrix (4) is a glass fiber matrix or a carbon fiber matrix.
9. The composite structural profile of claim 7, wherein: the resin matrix (5) is an unsaturated polyester resin matrix or a vinyl ester resin matrix or an epoxy resin matrix or a polyurethane resin matrix or an epoxy resin matrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110037496.XA CN112762342A (en) | 2021-01-12 | 2021-01-12 | Composite material structural section capable of being freely assembled and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110037496.XA CN112762342A (en) | 2021-01-12 | 2021-01-12 | Composite material structural section capable of being freely assembled and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112762342A true CN112762342A (en) | 2021-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110037496.XA Pending CN112762342A (en) | 2021-01-12 | 2021-01-12 | Composite material structural section capable of being freely assembled and preparation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020015820A1 (en) * | 1997-03-28 | 2002-02-07 | Andersen Corporation | Thermoplastic resin and fiberglass fabric composite and method |
| CN102336026A (en) * | 2011-10-25 | 2012-02-01 | 管印贵 | Direct on-line pultrusion process for fiber reinforced thermoplastic composite material |
| CN204940701U (en) * | 2015-09-30 | 2016-01-06 | 李金东 | A kind of assembly for assembly type beam, post processed by living beings resin composite materials |
| CN109016565A (en) * | 2017-06-12 | 2018-12-18 | 科思创德国股份有限公司 | It is used to prepare the pultrusion method and equipment of fibre reinforced composites |
| CN209325387U (en) * | 2018-11-28 | 2019-08-30 | 中国农业科学院农业环境与可持续发展研究所 | A kind of profile |
-
2021
- 2021-01-12 CN CN202110037496.XA patent/CN112762342A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020015820A1 (en) * | 1997-03-28 | 2002-02-07 | Andersen Corporation | Thermoplastic resin and fiberglass fabric composite and method |
| CN102336026A (en) * | 2011-10-25 | 2012-02-01 | 管印贵 | Direct on-line pultrusion process for fiber reinforced thermoplastic composite material |
| CN204940701U (en) * | 2015-09-30 | 2016-01-06 | 李金东 | A kind of assembly for assembly type beam, post processed by living beings resin composite materials |
| CN109016565A (en) * | 2017-06-12 | 2018-12-18 | 科思创德国股份有限公司 | It is used to prepare the pultrusion method and equipment of fibre reinforced composites |
| CN209325387U (en) * | 2018-11-28 | 2019-08-30 | 中国农业科学院农业环境与可持续发展研究所 | A kind of profile |
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Application publication date: 20210507 |