CN105365224A - Fiber resin composite rod and preparation process thereof - Google Patents
Fiber resin composite rod and preparation process thereof Download PDFInfo
- Publication number
- CN105365224A CN105365224A CN201510901030.4A CN201510901030A CN105365224A CN 105365224 A CN105365224 A CN 105365224A CN 201510901030 A CN201510901030 A CN 201510901030A CN 105365224 A CN105365224 A CN 105365224A
- Authority
- CN
- China
- Prior art keywords
- fiber
- resin
- internal layer
- curing
- compound bar
- 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.)
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Classifications
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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
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
-
- 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
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/56—Winding and joining, e.g. winding spirally
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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
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention discloses a fiber resin composite rod and a preparation process thereof. The rod comprises an inner layer and an outer layer, wherein the outer layer uniformly coats the inner layer; the inner layer is formed by compounding multiple bundles of longitudinal fibers and resins; and the outer layer is formed by compounding multiple bundles of fibers wound along the periphery of the inner layer and resins. The preparation process comprises the following process steps: the fibers are longitudinally and uniformly arranged; glue is dip in the resins for closing; after the redundant resins are removed, a columnar blank is formed through primary in-mold curing; the fibers are wound at the periphery of the columnar blank by a winding machine; resin glue is dip again, and is heated and cured for cutting out a finished product; or fiber filaments or fabrics can be wound outside an inner-layer fiber resin rod with a cut length after primary curing, and the inner-layer fiber resin rod is dip with the resin glue for secondary heating and curing to form the finished product. The fiber resin composite rod is excellent in bend, torsion and crack resistance; and the preparation process and equipment enable the fiber resin composite rod to be low in gas content and water content inside and excellent in compactness, so that comprehensive electric performance of the fiber resin composite rod is promoted.
Description
Technical field
The present invention relates to a kind of fibre resin compound bar and preparation technology thereof.
Background technology
The fibrous composite used in the market has Filament-wound Machine pipe, pulling fiber rod, both is respectively used on civil pipeline, electrician trade and all kinds of switch, draw with glass fiber and mixed with resin or coiling Post RDBMS moulding material in the majority, it possess anti-corrosion, shaping efficiency is high, low cost and other advantages.But the fiber resin composite material of this structure also Shortcomings: as be wound around pipe be single direction filament around, its anti-bending strength is poor; Drawing as adopted filament (as glass fiber is in the majority) and mixed with resin, solidifying and form, though work efficiency is high, but the pipe drawn then machine direction more single make pipe resist inside and outside tension force performance and torsional rigidity poor, and above-mentioned bi-material be subject under tension force and crooked pressure all easy to crack.And though excellent fiber resin composite materials anti-bending strength is good, anti-twisting property is poor.
The preparation technology of existing fibre resin compound bar is generally: filament is imported in mould the aftershaping that is heating and curing after resin-dipping under hauling machine pulling force, and then length is on demand blocked and is employed.Water in such air, gas can enter in section bar with fiber and resin and be cured, when these materials are used in high voltage installation, no matter how the later stage vacuumizes process, inner gas, water can not be out, they will discharge under the large field intensity in inside under high voltages, thus have influence on the insulating properties of equipment, especially partial discharge performance, electrical network and equipment safety in operation, reliability are formed to harm and even draw major break down.
Summary of the invention
Technical problem to be solved by this invention is that the deficiency existed for above-mentioned prior art provides a kind of bending resistance, the fibre resin compound bar that antitorque, anti-cracking performance is good and preparation technology thereof.
The technical solution adopted in the present invention is: a kind of fibre resin compound bar, it is characterized in that: described barred body comprises internal layer and skin, skin is evenly coated on outside internal layer, described internal layer is formed by multi beam longitudinal fiber and resin compounded, and the fiber that described skin is wound around along internal layer periphery by multi beam and resin compounded form.
By technique scheme, described internal layer is solid barred body or hollow barred body, and described fiber is that filament is or/and fabric.
By technique scheme, outer to be formed along the fiber of internal layer spiral winding and resin compounded by multi beam; Or formed along the fiber of internal layer periphery cross winding and resin compounded by multi beam, or be wound around single or multiple lift fiber cloth along internal layer periphery and resin compounded forms.
By technique scheme, described internal layer is longitudinally evenly distributed by fiber, and is pre-formed as column base substrate after infiltrating resin adhesive liquid, and forms through primary curing; Described skin is wound around after internal layer is primary curing, and carries out post bake after together again infiltrating resin adhesive liquid with internal layer and solidify and form; Or described skin is wound around after internal layer primary solidification completes, and after infiltrating resin adhesive liquid to skin, carries out post bake solidification and form.
By technique scheme, be heating and curing for the first time again after column base substrate being carried out application of vacuum before the process that is heating and curing for the first time.
By technique scheme, after fibre resin compound bar semi-finished product being carried out application of vacuum again before post bake solidification process, carry out post bake solidification again.
A preparation technology for fibre resin compound bar as above, is characterized in that: this processing step is as follows:
1) unwrapping wire: be fiber by web-like fiber longitudinal arrangement;
2) impregnation: adopt tractive force system by fiber impregnation in resin of longitudinal arrangement in step (1);
3) preformed: close up after removing Excess resin and enter mould formation column base substrate;
4) be heating and curing for the first time: above-mentioned billet body is heating and curing and forms inner fiber resin compounded barred body;
5) be wound around: adopt wrapping machine by Filament-wound Machine that it is pre-installed in inner fiber resin compounded barred body periphery;
6) impregnation again: by the section bar of gained in step (5) again in resin impregnation or winding limit, limit water resin;
7) post bake solidification: the section bar of gained in step (6) is sent into mould and carries out post bake solidification (also can carry out under vacuo);
8) finished product is cut; After excellent approved product solidification to be composite, cooling, be cut into finished product by cutting machine.
By technique scheme, after column base substrate being carried out application of vacuum before the process that is heating and curing for the first time, carry out first heat-curing step again.
By technique scheme, after fibre resin compound bar semi-finished product being carried out application of vacuum again before post bake solidification process, carry out post bake curing schedule again.
By technique scheme, the inner fiber resin compounded barred body of gained in step (4) is carried out winding step again after Len req.
Beneficial effect acquired by the present invention is: fibre resin compound bar of the present invention is divided into internal layer and skin, outer circumference is wrapped on internal layer, make it have the feature that the comprehensive mechanical performances such as bending resistance, antitorque, cracking resistance are good, can be widely used on the Main Insulation Structure of Electric part of civilian sewer pipe, electrician, electric power accessory, industry and sub-connecting switch of transformer; Technique of the present invention, carries out dehydration degasification technique by vacuum tank in the process preparing fibre resin compound bar, makes moulding material inside containing gas, discharge reduction, the Universal electric performance boost of workpiece.
Accompanying drawing explanation
The fibre resin compound bar structure chart that Fig. 1 provides for the embodiment of the present invention 1.
Fig. 2 is the viewgraph of cross-section of Fig. 1.
The fibre resin compound bar viewgraph of cross-section that Fig. 3 provides for the embodiment of the present invention 2.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, present embodiments provide a kind of fibre resin compound bar, comprise internal layer and skin, skin is evenly coated on outside internal layer, internal layer is formed by multi beam longitudinal fiber and resin compounded, outer to be formed along the fiber of internal layer spiral winding and resin compounded by multi beam; Or formed along the fiber of internal layer periphery cross winding and resin compounded by multi beam, or be wound around single or multiple lift fiber cloth along internal layer periphery and resin compounded forms.Wherein, described fiber be filament or/and fabric, fabric is for for glass fabric or glass fiber tape, and described resin is saturated resin or unsaturated-resin.Such as, be epoxy resin.It also can be hollow bar body that described internal layer can be solid barred body, as shown in Figure 2,3.
The preparation technology of this fibre resin compound bar, comprises the steps:
(1) unwrapping wire: by web-like fiber longitudinal arrangement;
(2) impregnation: adopt tractive force system by the fiber of longitudinal arrangement impregnation in resin;
(3) preformed: close up after removing Excess resin and enter mould formation column base substrate;
(4) application of vacuum: the column base substrate of gained in step (3) is sent into vacuum tank and carries out vacuumizing process; Wherein, the liquid resin glue that can fill in vacuum tank after degassed process of dewatering also can not fill liquid resin; Determine according to actual condition;
(5) be heating and curing for the first time: the column base substrate after application of vacuum is sent into mould molding and the formation internal layer longitudinal fiber barred body that is heating and curing;
(6) be wound around: adopt wrapping machine by Filament-wound Machine that it the is pre-installed barred body periphery in the middle gained of step (4);
(7) impregnation again: by the section bar of gained in step (6) again in resin impregnation (or under vacuo impregnation) or winding limit, limit water resin;
(8) post bake solidification: the section bar of gained in step (7) feeding mould is carried out post bake solidification (also can carry out post bake solidification under vacuo) and obtains fibre resin compound bar;
(9) finished product is cut; After excellent approved product solidification to be composite, cooling, be cut into finished product by cutting machine.
In the present embodiment, also by the internal layer longitudinal fiber barred body of gained in step (5) after Len req, then winding step can be carried out.
In the present embodiment, column base substrate is formed because fiber infiltrates resin and closes up, vacuum treated abundant not in vacuum tank, therefore, the loosening apparatus making the fibr tissue of column base substrate loose can also be provided with, impregnation, dehydration, degassed more abundant under negative pressure again after the fiber of column base substrate is loose in vacuum tank.
Claims (10)
1. a fibre resin compound bar, it is characterized in that: described barred body comprises internal layer and skin, skin is evenly coated on outside internal layer, and described internal layer is formed by multi beam longitudinal fiber and resin compounded, and the fiber that described skin is wound around along internal layer periphery by multi beam and resin compounded form.
2. a kind of fibre resin compound bar according to claim 1, is characterized in that, described internal layer is solid barred body or hollow barred body, and described fiber is that filament is or/and fabric.
3. a kind of fibre resin compound bar according to claim 1 and 2, is characterized in that, outer is formed along the fiber of internal layer spiral winding and resin compounded by multi beam; Or formed along the fiber of internal layer periphery cross winding and resin compounded by multi beam, or be wound around single or multiple lift fiber cloth along internal layer periphery and resin compounded forms.
4. a kind of fibre resin compound bar according to claim 1 and 2, it is characterized in that, described internal layer is longitudinally evenly distributed by fiber, and is pre-formed as column base substrate after infiltrating resin adhesive liquid, and forms through primary curing; Described skin is wound around after internal layer is primary curing, and carries out post bake after together again infiltrating resin adhesive liquid with internal layer and solidify and form; Or described skin is wound around after internal layer primary solidification completes, and after infiltrating resin adhesive liquid to skin, carries out post bake solidification and form.
5. a kind of fibre resin compound bar according to claim 4, is characterized in that, is heating and curing for the first time after column base substrate being carried out application of vacuum before the process that is heating and curing for the first time again.
6. a kind of fibre resin compound bar according to claim 5, is characterized in that, carries out post bake solidification again after fibre resin compound bar semi-finished product being carried out application of vacuum again before post bake solidification process.
7. a preparation technology for the fibre resin compound bar as described in claim arbitrary in claim 1 to 6, is characterized in that: this processing step is as follows:
1) unwrapping wire: by web-like fiber longitudinal arrangement;
2) impregnation: adopt tractive force system by fiber impregnation in resin of longitudinal arrangement in step (1);
3) preformed: close up after removing Excess resin and enter mould formation column base substrate;
4) be heating and curing for the first time: above-mentioned billet body is heating and curing and forms inner fiber resin compounded barred body;
5) be wound around: adopt wrapping machine by Filament-wound Machine that it is pre-installed in inner fiber resin compounded barred body periphery;
6) impregnation again: by the section bar of gained in step (5) again in resin impregnation or winding limit, limit water resin glue;
7) post bake solidification: the section bar of gained in step (6) is sent into mould and carries out post bake solidification;
8) finished product is cut; After excellent approved product solidification to be composite, cooling, be cut into finished product by cutting machine.
8. the preparation technology of a kind of fibre resin compound bar according to claim 7, is characterized in that: carry out first heat-curing step again after column base substrate being carried out application of vacuum before the process that is heating and curing for the first time.
9. the preparation technology of a kind of fibre resin compound bar according to claim 7 or 8, is characterized in that: carry out post bake curing schedule again after fibre resin compound bar semi-finished product being carried out application of vacuum again before post bake solidification process.
10. the preparation technology of a kind of fibre resin compound bar according to claim 7 or 8, is characterized in that: the inner fiber resin compounded barred body of gained in step (4) is carried out winding step again after Len req.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510901030.4A CN105365224A (en) | 2015-12-08 | 2015-12-08 | Fiber resin composite rod and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510901030.4A CN105365224A (en) | 2015-12-08 | 2015-12-08 | Fiber resin composite rod and preparation process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105365224A true CN105365224A (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510901030.4A Pending CN105365224A (en) | 2015-12-08 | 2015-12-08 | Fiber resin composite rod and preparation process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105365224A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101740161A (en) * | 2009-12-29 | 2010-06-16 | 上海电缆研究所 | Novel electric cable reinforced core and preparation method thereof |
-
2015
- 2015-12-08 CN CN201510901030.4A patent/CN105365224A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101740161A (en) * | 2009-12-29 | 2010-06-16 | 上海电缆研究所 | Novel electric cable reinforced core and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李永河: "《橡胶硫化技术》", 31 May 2012, 黄河水利出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| PB01 | Publication | ||
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Application publication date: 20160302 |