CN102275312A - Production process of large-diameter epoxy glass fiber pultrusion rod - Google Patents
Production process of large-diameter epoxy glass fiber pultrusion rod Download PDFInfo
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- CN102275312A CN102275312A CN201110108804XA CN201110108804A CN102275312A CN 102275312 A CN102275312 A CN 102275312A CN 201110108804X A CN201110108804X A CN 201110108804XA CN 201110108804 A CN201110108804 A CN 201110108804A CN 102275312 A CN102275312 A CN 102275312A
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Abstract
The invention discloses a production process of a large-diameter epoxy glass fiber pultrusion rod. The production process comprises the following steps of: (1) selecting materials, such as epoxy resin, a curing agent and alkali-free zero-twist glass fiber filaments; (2) carrying out gum dipping; (3) carrying out thermal curing and sizing; and (4) finishing a finished product. According to the technical scheme, the produced rod is prevented from core cracking generated during pultrusion of the large-diameter (above phi 50) rod in the prior art, and the quality stability and reliability of the product are ensured. The production process is simple to operate and is beneficial to reducing the operational risk. The product produced by using the process disclosed by the invention reaches the design requirement, can be widely applied to high and low voltage electrics as an insulation structure part, is beneficial to effectively expanding the application range of the epoxy glass fiber pultrusion rod and is the radical innovation of the epoxy glass fiber pultrusion rod in history.
Description
Technical field
What the present invention relates to is a kind of crowded pull-rod manufacturing technology field, and what be specifically related to is that a kind of major diameter (φ is more than 50) is squeezed the pull-rod production technology.
Background technology
Epoxy glass fiber squeeze pull-rod be by leached glass fiber with epoxy resin, through mould heating sizing and solidifying, squeezing a kind of cross section of drawing and forming continuously is circular bar.This product has high mechanical performance and electric property, is applicable to the electric middle insulation parts of doing of high and low pressure.
Continuous development along with science and technology, some specific high-technology field is increasing to the demand of the major diameter of different cultivars and specification, high-quality epoxy glass fiber rod, and in the production technology of existing crowded pull-rod, the diameter of pulling out by pulling equipment is greater than the bar of 50mm, owing to can cause the extrusion stress difference on the cross section very big when the preformed by traditional process, make and finally when bar is heating and curing, cause bar core cracking by core and very big along the resin glue content difference of face.Existing major diameter epoxy glass fiber leading-drawing rod production technology can't guarantee the reliability and stability of product quality, thereby has influenced the promotion and application scope of crowded pull-rod.
Summary of the invention
At the deficiencies in the prior art, the object of the invention is to provide a kind of technology of can production major diameter epoxy glass fiber squeezing pull-rod.This technological process is simple, properties of product are reliable and stable, has avoided squeezing in the traditional mode of production process cracking phenomena of pull-rod, can reach design and quality requirement.
To achieve these goals, the present invention realizes by the following technical solutions:
The major diameter epoxy glass fiber squeezes the pull-rod production technology, and its step is as follows:
(1) selects material; Selecting epoxy resin, curing agent, the non-twist filament of glass fiber of alkali-free is material, and epoxy resin, the non-twist glass fibre distribution of orientations of alkali-free are formed long fibre;
(2) impregnation; Long fibre in the step (1) is entered the glue groove after by spreader carries out impregnation, behind the impregnation again by the preformed of pressure distribution device;
(3) typing that is heating and curing; The preformed rod of step (2) is sent into shaper be heating and curing, and squeeze continuously and draw;
(4) cutting finished product; After the products solidifying of waiting the to finalize the design cooling, cut, become finished product by cutting machine.
As preferably, what above-mentioned glue adopted is epoxide-resin glue.
As preferably, the center of described spreader and pressure distribution device is provided with a center hole, be respectively rounded evenly distributed have a plurality of dividing sinker mouths and uniform mouth of the center of circle with the center hole on spreader and pressure distribution device, this circular diameter squeezes the external diameter of pull-rod greater than epoxy glass fiber to be produced.
As preferably, described dividing sinker mouth and uniform mouthful are circular dividing sinker mouth or crescent hole.
As preferably, uniform mouthful of circular cross-sectional area of arranging of above-mentioned pressure distribution device equals the 20-50% of total cross-sectional area.
As preferably, in the described finished product component, fiber content is 75-83%, and resin content is 17-25%.
The present invention makes the bar of its production avoid squeezing the core cracking phenomena that occurs when widening diameter (φ is more than 50) bar in the existing technology by such scheme, and the stability of its quality of item and reliability are guaranteed.This technological operation is simple, reduced enterprise business risk, the product of this explained hereafter has reached designing requirement, can be widely used in high and low pressure and make the insulation system parts in electric, effectively having enlarged the range of application that epoxy glass fiber squeezes pull-rod, is that epoxy glass fiber squeezes one of great innovation of pull-rod since the dawn of human civilization.
Description of drawings
Describe the present invention in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is a process chart of the present invention;
Fig. 2 is the embodiment one of spreader of the present invention and pressure distribution device;
Fig. 3 is the embodiment two of spreader of the present invention and pressure distribution device;
Fig. 4 is the embodiment three of spreader of the present invention and pressure distribution device;
Fig. 5 is the embodiment four of spreader of the present invention and pressure distribution device.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with the specific embodiment, further set forth the present invention.
Embodiment:
Present embodiment is to produce the crowded pull-rod production technology of major diameter epoxy glass fiber that diameter is 50mm, and its step is as follows:
(1) selects material; Selecting epoxy resin, curing agent, the non-twist filament of glass fiber of alkali-free is material, and epoxy resin, the non-twist glass fibre distribution of orientations of alkali-free are formed long fibre;
(2) impregnation; Long fibre in the step (1) is entered the glue groove after by spreader carry out impregnation, what this impregnation operation was adopted is epoxide-resin glue, increases the tensile strength of bar.
(3) pressure distribution; Make its preformed by the pressure distribution device again behind the impregnation;
In the present embodiment, above-mentioned spreader is provided with a plurality of dividing sinker mouths of rounded arrangement, and this circular diameter squeezes the external diameter of pull-rod greater than epoxy glass fiber to be produced.
Described pressure distribution device is provided with the center dividing sinker mouth of rounded arrangement, and the area of section of described circular arrangement equals 30% of total cross-sectional area.
Referring to Fig. 2-5, above-mentioned dividing sinker mouth and center dividing sinker mouth all can adopt circle or half moon hole, center at pressure distribution device and spreader is equipped with center hole, can be set to 2-4 half moon hole around the dividing sinker mouth of the rounded arrangement of center hole, Fig. 5 is around rounded ten the evenly distributed circular dividing sinker mouths of center hole.
In the present embodiment, the dividing sinker mouth adopts consistent with the shape and the arrangement of the center dividing sinker mouth of spreader on the pressure distribution device.
(4) typing that is heating and curing; The preformed rod of step (2) is sent into shaper be heating and curing, the approved product of producing also squeezes continuously by pulling equipment and to draw;
(5) cutting finished product; The crowded approved product that pulls out cuts by cutting machine after waiting to solidify cooling, becomes finished product.
In the present embodiment, in the finished product component, fiber content is 75-83%, and resin content is 17-25%.
Through test, the external diameter that the epoxy glass fiber of present embodiment production squeezes pull-rod is 50mm, and hot strength is 1100MPa, and flexural strength is 860MPa, does not occur squeezing the phenomenon of rupture of pull-rod in the production process, and qualification rate is more than 95%.
The present invention passes through technique scheme, can produce external diameter is the crowded pull-rod of epoxy glass fiber of 10 ~ 500mm, avoided squeezing in the existing technology of the generation of stretching footpath greater than cracking phenomena in the crowded pull-rod process of 50mm, make diameter squeeze producing of pull-rod for reality greater than the epoxy glass fiber of 50mm, satisfy enterprise to various outside dimension requirements, improve the tensile strength of crowded pull-rod, reduced enterprise business risk.
And, the product of this explained hereafter reaches the requirement of design and quality, can be widely used in high and low pressure and make the insulation system parts in electric, effectively enlarge the range of application that epoxy glass fiber squeezes pull-rod, be that epoxy glass fiber squeezes one of great innovation of pull-rod since the dawn of human civilization.
More than show and declarative description basic principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof
Claims (6)
1. the major diameter epoxy glass fiber squeezes the pull-rod production technology, and its step is as follows:
(1) selects material; Selecting epoxy resin, curing agent, the non-twist filament of glass fiber of alkali-free is material, and epoxy resin, the non-twist glass fibre distribution of orientations of alkali-free are formed long fibre;
(2) impregnation; Long fibre in the step (1) is entered the glue groove after by spreader carries out impregnation, behind the impregnation again by the preformed of pressure distribution device;
(3) typing that is heating and curing; The preformed rod of step (2) is sent into shaper be heating and curing, and squeeze continuously and draw;
(4) cutting finished product; After the products solidifying of waiting the to finalize the design cooling, cut, become finished product by cutting machine.
2. major diameter epoxy glass fiber according to claim 1 squeezes the pull-rod production technology, it is characterized in that, what above-mentioned glue adopted is epoxide-resin glue.
3. major diameter epoxy glass fiber according to claim 1 and 2 squeezes the pull-rod production technology, it is characterized in that, the center of described spreader and pressure distribution device is provided with a center hole, be respectively rounded evenly distributed have a plurality of dividing sinker mouths and uniform mouth of the center of circle with the center hole on spreader and pressure distribution device, this circular diameter squeezes the external diameter of pull-rod greater than epoxy glass fiber to be produced.
4. major diameter epoxy glass fiber according to claim 3 squeezes the pull-rod production technology, it is characterized in that, described dividing sinker mouth and uniform mouth are circular dividing sinker mouth or crescent hole.
5. major diameter epoxy glass fiber according to claim 3 squeezes the pull-rod production technology, it is characterized in that, uniform mouthful of circular cross-sectional area of arranging of above-mentioned pressure distribution device equals the 20-50% of total cross-sectional area.
6. major diameter epoxy glass fiber according to claim 1 squeezes the pull-rod production technology, it is characterized in that, in the described finished product component, fiber content is 75-83%, and resin content is 17-25%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110108804XA CN102275312A (en) | 2011-04-28 | 2011-04-28 | Production process of large-diameter epoxy glass fiber pultrusion rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110108804XA CN102275312A (en) | 2011-04-28 | 2011-04-28 | Production process of large-diameter epoxy glass fiber pultrusion rod |
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| CN102275312A true CN102275312A (en) | 2011-12-14 |
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| CN201110108804XA Pending CN102275312A (en) | 2011-04-28 | 2011-04-28 | Production process of large-diameter epoxy glass fiber pultrusion rod |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105638305A (en) * | 2014-11-07 | 2016-06-08 | 麻修纪 | Glass fiber rod support used in vegetable planting, and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001085431A1 (en) * | 2000-04-17 | 2001-11-15 | Yeonsan Co., Ltd. | Method of coating a pole and the pole made thereby |
| CN1421310A (en) * | 2001-11-28 | 2003-06-04 | 周献刚 | Method of producing door and window with basalt fiber reinforced material |
| CN1631656A (en) * | 2005-01-04 | 2005-06-29 | 北京玻璃钢研究设计院 | Fibre reinforced pultrusion rod and its preparation method and application |
| CN101607444A (en) * | 2009-07-15 | 2009-12-23 | 张世平 | The manufacturing method of composite core of synchronous pulling and winding and one-step solidification moulding and production unit |
-
2011
- 2011-04-28 CN CN201110108804XA patent/CN102275312A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001085431A1 (en) * | 2000-04-17 | 2001-11-15 | Yeonsan Co., Ltd. | Method of coating a pole and the pole made thereby |
| CN1421310A (en) * | 2001-11-28 | 2003-06-04 | 周献刚 | Method of producing door and window with basalt fiber reinforced material |
| CN1631656A (en) * | 2005-01-04 | 2005-06-29 | 北京玻璃钢研究设计院 | Fibre reinforced pultrusion rod and its preparation method and application |
| CN101607444A (en) * | 2009-07-15 | 2009-12-23 | 张世平 | The manufacturing method of composite core of synchronous pulling and winding and one-step solidification moulding and production unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105638305A (en) * | 2014-11-07 | 2016-06-08 | 麻修纪 | Glass fiber rod support used in vegetable planting, and preparation method thereof |
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Application publication date: 20111214 |