CN113462126A - Formula and production process of glass fiber reinforced plastic epoxy wedge-shaped strip - Google Patents
Formula and production process of glass fiber reinforced plastic epoxy wedge-shaped strip Download PDFInfo
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- CN113462126A CN113462126A CN202110795618.1A CN202110795618A CN113462126A CN 113462126 A CN113462126 A CN 113462126A CN 202110795618 A CN202110795618 A CN 202110795618A CN 113462126 A CN113462126 A CN 113462126A
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- 239000004593 Epoxy Substances 0.000 title claims abstract description 46
- 239000011152 fibreglass Substances 0.000 title claims abstract description 44
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 238000009472 formulation Methods 0.000 title claims abstract description 11
- 229920005989 resin Polymers 0.000 claims abstract description 35
- 239000011347 resin Substances 0.000 claims abstract description 35
- 239000000843 powder Substances 0.000 claims abstract description 15
- 239000003822 epoxy resin Substances 0.000 claims abstract description 14
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 13
- 238000005520 cutting process Methods 0.000 claims abstract description 13
- 239000003365 glass fiber Substances 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 230000002159 abnormal effect Effects 0.000 claims description 6
- 238000010924 continuous production Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 238000005470 impregnation Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 7
- 239000011521 glass Substances 0.000 abstract description 7
- 229910000831 Steel Inorganic materials 0.000 abstract description 6
- 239000010959 steel Substances 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 238000010621 bar drawing Methods 0.000 abstract description 2
- 238000007711 solidification Methods 0.000 abstract description 2
- 230000008023 solidification Effects 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 17
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 239000005007 epoxy-phenolic resin Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
- C08J5/043—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with glass fibres
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2363/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention discloses a formula of a glass fiber reinforced plastic epoxy wedge-shaped strip, which comprises the following raw materials in percentage by weight: 55-65% of epoxy resin, 30-43% of curing agent, 0.8-1.2% of demoulding powder and 0.7-0.8% of accelerator. A production process of a glass fiber reinforced plastic epoxy wedge-shaped strip comprises the following steps: preparing equipment; threading by equipment; drawing yarns by equipment; preheating a mould; preparing resin; pultrusion of the section; and (5) cutting the section. This glass steel epoxy wedge strip formula and production technology adopt unique formula, make epoxy and glass fiber better bonding together, improve the internal strength of glass steel after the solidification, through the addition of drawing die powder, reduce the absorption of mould to epoxy, make the section bar after the design break away from the mould more easily, deformation when reducing the section bar drawing of patterns, improved the stability of this technology, and through the traction of drawing tool, make the mould carry out the processing of finalizing the design in succession to epoxy, do not need one to produce, the production flow is improved, the production efficiency is improved.
Description
Technical Field
The invention relates to the technical field of glass fiber reinforced plastics, in particular to a formula and a production process of a glass fiber reinforced plastic epoxy wedge-shaped strip.
Background
Glass fiber reinforced plastic is also called glass fiber reinforced plastic, and is reinforced plastic which uses glass fiber reinforced unsaturated polyester, epoxy resin and phenolic resin matrix, uses glass fiber or its products as reinforcing material, the glass fiber reinforced plastic has the characteristics of light weight, hardness, non-conductivity, stable performance, high mechanical strength, less recycling, corrosion resistance and the like, and can replace steel to manufacture machine parts, automobile, ship shells and the like, the glass fiber reinforced plastic belongs to one kind of composite material, the concept of the composite material means that one kind of material can not meet the use requirement, and two or more than two kinds of materials are required to be compounded together to form another kind of material which can meet the requirements of people, namely the composite material. For example, a single glass fiber, although strong, is loose, can only withstand tensile forces, cannot withstand bending, shearing, and compressive stresses, and cannot be easily formed into a fixed geometric shape, which is a loose body. If they are bonded together by synthetic resin, they can be made into various hard products with fixed shapes, which can bear both tensile stress and bending, compression and shearing stress, so that it is a glass fibre reinforced plastic base composite material, and because its strength is equivalent to steel material, and contains glass component, it also has the colour, form, corrosion resistance, electric insulation and heat-insulating properties of glass, like glass, also called glass fibre reinforced plastic, and on the equipment of wind power generation equipment the glass fibre reinforced plastic epoxy wedge strip made of glass fibre reinforced plastic is mostly used, and used for mounting at the root portion of blade to play the role of fixing bolt sleeve.
Therefore, we propose a formulation and a production process of the glass fiber reinforced plastic epoxy wedge strip so as to solve the problems mentioned above.
Disclosure of Invention
The invention aims to provide a formula and a production process of a glass fiber reinforced plastic epoxy wedge-shaped strip, and aims to solve the problems that the production process of the existing glass fiber reinforced plastic epoxy wedge-shaped strip in the market in the background art is mostly carried out by adopting an injection molding process, the wedge-shaped strip needs to be produced section by section, and the production efficiency is low.
In order to achieve the purpose, the invention provides the following technical scheme:
the formula of the glass fiber reinforced plastic epoxy wedge-shaped strip comprises the following raw materials in percentage by weight: 55-65% of epoxy resin, 30-43% of curing agent, 0.8-1.2% of demoulding powder and 0.7-0.8% of accelerator.
A production process of a glass fiber reinforced plastic epoxy wedge-shaped strip comprises the following steps:
(1) preparation of the device: whether the electrical equipment on the processing equipment is normal or not is checked, whether the electrical control cabinet is abnormal or not is checked, and whether the continuous production requirement is met or not is judged; checking whether the safety device is complete, whether the instrument is sensitive or reliable, whether the hydraulic system is continuous, firm and free of leakage, and whether the hydraulic cooling fan works normally; whether the amount of untwisted yarn placed and stored in the creel is enough or not.
(2) Threading by equipment: and (2) placing a forming die on a die station of the processing equipment in the step (1) by using a die car, calibrating the horizontal positions of the die and a pultrusion platform, installing the corresponding pre-former and the pre-forming plate on the die, threading according to the corresponding start yarn amount of the die, and fixing the yarns on the traction copper wires.
(3) Drawing yarns by equipment: the copper wire is utilized to draw the yarn layer by layer through the die, the yarn quantity which can not pass through the die is finally woven on the yarn which passes through the die, the yarn is divided into two parts to be knotted in equal length and fixed on the drawing tool, the drawing tool is started, the position corresponding to the drawing tool when the hydraulic workbench is adjusted to operate and reset is noticed, the knotted position of the yarn is prevented from being pressed and broken by the hydraulic platform, and the yarn drawing work is stopped after the yarn is completely taken out of the die.
(4) Preheating a mould: and turning on a power supply, turning on temperature switches of the areas 1, 2 and 3 on the die, and preheating the die.
(5) Preparing resin: the formulation of claim 1, wherein the resin is prepared by stirring the prepared resin solution, and adding the prepared resin solution to a processing device.
(6) Pultrusion of the section bar: and opening the baking lamp to enable the baking lamp to keep a certain distance from the yarns, starting pultrusion equipment to enable the pultrusion equipment to pull the yarns to penetrate through the resin solution for impregnation through a puller, pulling the impregnated yarns into a die, curing and shaping the yarns and the resin in the die to form a plate, continuously pulling the cured and shaped plate out of the die, enabling subsequent yarns to be cured through the die again, and manufacturing the preformed plate.
(7) Cutting the section bar: and (4) cutting the preformed plate in the step (6) into wedge-shaped strips with specific lengths to manufacture the glass fiber reinforced plastic epoxy wedge-shaped strips.
Preferably, the processing equipment in the step (1) is glass fiber reinforced plastic pultrusion equipment, the untwisted yarns are glass fiber yarns, and the specifications of the glass fiber yarns are 4800TEX and 9600 TEX.
Preferably, the preformed plate in step (2) requires strict alignment with the mold during installation.
Preferably, the yarn which has passed through the die in the step (3) needs to reserve a traction length of about 1.5 m.
Preferably, the temperature of the mold setting region 1 in the step (4) is 190-.
Preferably, the resin solution in the step (5) is prepared by mixing the epoxy resin, the curing agent, the release powder and the accelerator in sequence and stirring for 15-20 min.
Preferably, the baking lamp in the step (6) is suspended above the yarn in the center, the distance between the baking lamp and the yarn is controlled to be 30-40 cm in 6-10 months, and the distance between the baking lamp and the yarn is controlled to be 20-30 cm in 11-5 months.
Preferably, the pultrusion speed of the puller in the step (6) is controlled to be 7.0-8.5 cm/min.
Compared with the prior art, the invention has the beneficial effects that: this glass steel epoxy wedge strip formula and production technology adopt unique formula, make epoxy and glass fiber better bonding together, improve the internal strength of glass steel after the solidification, through the addition of drawing die powder, reduce the absorption of mould to epoxy, make the section bar after the design break away from the mould more easily, deformation when reducing the section bar drawing of patterns, improved the stability of this technology, and through the traction of drawing tool, make the mould carry out the processing of finalizing the design in succession to epoxy, do not need one to produce, the production flow is improved, the production efficiency is improved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
Example one
The formula of the glass fiber reinforced plastic epoxy wedge-shaped strip comprises the following raw materials in percentage by weight: 55% of epoxy resin, 43% of curing agent, 1.2% of demolding powder and 0.8% of accelerator.
A production process of a glass fiber reinforced plastic epoxy wedge-shaped strip comprises the following steps:
(1) preparation of the device: whether the electrical equipment on the glass fiber reinforced plastic pultrusion equipment is normal or not and whether the electrical control cabinet is abnormal or not are checked, and whether the continuous production requirement is met or not is judged; checking whether the safety device is complete, whether the instrument is sensitive or reliable, whether the hydraulic system is continuous, firm and free of leakage, and whether the hydraulic cooling fan works normally; whether the amount of untwisted yarn placed and stored in the creel is enough or not.
(2) Threading by equipment: and (2) placing a forming die on a die station of the processing equipment in the step (1) by using a die car, calibrating the horizontal positions of the die and a pultrusion platform, installing the corresponding pre-former and the pre-forming plate on the die, threading according to the corresponding start yarn amount of the die, and fixing the yarns on the traction copper wires.
(3) Drawing yarns by equipment: the copper wire is utilized to draw the yarn layer by layer through the die, the yarn quantity which can not pass through the die at last is woven on the yarn which passes through the die, the yarn which passes through the die needs to be reserved for drawing the length to be 1.5m, the yarn is divided into two parts to be knotted in equal length and fixed on the drawing tool, the drawing tool is started, the position corresponding to the drawing tool is observed when the hydraulic workbench is adjusted to operate and reset, the knotted position of the yarn is prevented from being pressed and broken by the hydraulic platform, and the yarn drawing work is stopped after the yarn is all taken out of the die.
(4) Preheating a mould: and (3) turning on a power supply, turning on temperature switches of the zones 1, 2 and 3 on the die, setting the temperature of the zone 1 to be 190 ℃, the temperature of the zone 2 to be 200 ℃ and the temperature of the zone 3 to be 210 ℃, preheating the die for 2 hours.
(5) Preparing resin: the formulation of claim 1, wherein the epoxy wedge strip is prepared by mixing the epoxy resin, the curing agent, the release powder, and the accelerator in sequence, stirring the prepared resin solution uniformly for 20min, and adding the prepared resin solution to the processing equipment.
(6) Pultrusion of the section bar: and opening the baking lamp to enable the baking lamp to keep a certain distance from the yarns, controlling the distance between the baking lamp and the yarns to be 40 cm, starting pultrusion equipment, controlling the pultrusion speed to be 8.5cm/min, enabling the pultrusion equipment to pull the yarns to penetrate through the resin solution for impregnation through a puller, pulling the impregnated yarns into a die, curing and shaping the yarns and the resin in the die to form a plate, continuously pulling the cured and shaped plate out of the die, and curing subsequent yarns through the die again to form a preformed plate.
(7) Cutting the section bar: and (4) cutting the preformed plate in the step (6) into wedge-shaped strips with specific lengths to manufacture the glass fiber reinforced plastic epoxy wedge-shaped strips.
Example two
The formula of the glass fiber reinforced plastic epoxy wedge-shaped strip comprises the following raw materials in percentage by weight: 65% of epoxy resin, 33% of curing agent, 1.2% of demolding powder and 0.8% of accelerator.
A production process of a glass fiber reinforced plastic epoxy wedge-shaped strip comprises the following steps:
(1) preparation of the device: whether the electrical equipment on the glass fiber reinforced plastic pultrusion equipment is normal or not and whether the electrical control cabinet is abnormal or not are checked, and whether the continuous production requirement is met or not is judged; checking whether the safety device is complete, whether the instrument is sensitive or reliable, whether the hydraulic system is continuous, firm and free of leakage, and whether the hydraulic cooling fan works normally; whether the amount of untwisted yarn placed and stored in the creel is enough or not.
(2) Threading by equipment: and (2) placing a forming die on a die station of the processing equipment in the step (1) by using a die car, calibrating the horizontal positions of the die and a pultrusion platform, installing the corresponding pre-former and the pre-forming plate on the die, threading according to the corresponding start yarn amount of the die, and fixing the yarns on the traction copper wires.
(3) Drawing yarns by equipment: the copper wire is utilized to draw the yarn layer by layer through the die, the yarn quantity which can not pass through the die at last is woven on the yarn which passes through the die, the yarn which passes through the die needs to be reserved for drawing the length to be 1.5m, the yarn is divided into two parts to be knotted in equal length and fixed on the drawing tool, the drawing tool is started, the position corresponding to the drawing tool is observed when the hydraulic workbench is adjusted to operate and reset, the knotted position of the yarn is prevented from being pressed and broken by the hydraulic platform, and the yarn drawing work is stopped after the yarn is all taken out of the die.
(4) Preheating a mould: and (3) turning on a power supply, turning on temperature switches of the zones 1, 2 and 3 on the die, setting the temperature of the zone 1 to be 180 ℃, the temperature of the zone 2 to be 190 ℃ and the temperature of the zone 3 to be 200 ℃, preheating the die for 1.5 h.
(5) Preparing resin: the formulation of claim 1, wherein the epoxy wedge strip is prepared by mixing the epoxy resin, the curing agent, the release powder, and the accelerator in sequence, stirring the prepared resin solution uniformly for 15min, and adding the prepared resin solution to the processing equipment.
(6) Pultrusion of the section bar: and opening the baking lamp to enable the baking lamp to keep a certain distance from the yarns, controlling the distance between the baking lamp and the yarns to be 30 cm, starting pultrusion equipment, controlling the pultrusion speed to be 7.0cm/min, enabling the pultrusion equipment to pull the yarns to penetrate through the resin solution for impregnation through a puller, pulling the impregnated yarns into a die, curing and shaping the yarns and the resin in the die to form a plate, continuously pulling the cured and shaped plate out of the die, and curing subsequent yarns through the die again to form a preformed plate.
(7) Cutting the section bar: and (4) cutting the preformed plate in the step (6) into wedge-shaped strips with specific lengths to manufacture the glass fiber reinforced plastic epoxy wedge-shaped strips.
EXAMPLE III
The formula of the glass fiber reinforced plastic epoxy wedge-shaped strip comprises the following raw materials in percentage by weight: 60% of epoxy resin, 39% of curing agent, 0.3% of demolding powder and 0.7% of accelerator.
A production process of a glass fiber reinforced plastic epoxy wedge-shaped strip comprises the following steps:
(1) preparation of the device: whether the electrical equipment on the glass fiber reinforced plastic pultrusion equipment is normal or not and whether the electrical control cabinet is abnormal or not are checked, and whether the continuous production requirement is met or not is judged; checking whether the safety device is complete, whether the instrument is sensitive or reliable, whether the hydraulic system is continuous, firm and free of leakage, and whether the hydraulic cooling fan works normally; whether the amount of untwisted yarn placed and stored in the creel is enough or not.
(2) Threading by equipment: and (2) placing a forming die on a die station of the processing equipment in the step (1) by using a die car, calibrating the horizontal positions of the die and a pultrusion platform, installing the corresponding pre-former and the pre-forming plate on the die, threading according to the corresponding start yarn amount of the die, and fixing the yarns on the traction copper wires.
(3) Drawing yarns by equipment: the copper wire is utilized to draw the yarn layer by layer through the die, the yarn quantity which can not pass through the die at last is woven on the yarn which passes through the die, the yarn which passes through the die needs to be reserved for drawing the length to be 1.5m, the yarn is divided into two parts to be knotted in equal length and fixed on the drawing tool, the drawing tool is started, the position corresponding to the drawing tool is observed when the hydraulic workbench is adjusted to operate and reset, the knotted position of the yarn is prevented from being pressed and broken by the hydraulic platform, and the yarn drawing work is stopped after the yarn is all taken out of the die.
(4) Preheating a mould: and turning on a power supply, turning on temperature switches of the 1, 2 and 3 zones on the die, setting the temperature of the 1 zone to be 185 ℃, the temperature of the 2 zone to be 195 ℃ and the temperature of the 3 zone to be 205 ℃, preheating the die for 2 hours.
(5) Preparing resin: the formulation of claim 1, wherein the epoxy wedge strip is prepared by mixing the epoxy resin, the curing agent, the release powder, and the accelerator in sequence, stirring the prepared resin solution uniformly for 18min, and adding the prepared resin solution to the processing equipment.
(6) Pultrusion of the section bar: and opening the baking lamp to enable the baking lamp to keep a certain distance from the yarns, controlling the distance between the baking lamp and the yarns to be 35 cm, starting pultrusion equipment, controlling the pultrusion speed to be 8cm/min, enabling the pultrusion equipment to pull the yarns to penetrate through the resin solution for impregnation through a puller, pulling the impregnated yarns into a die, curing and shaping the yarns and the resin in the die to form a plate, continuously pulling the cured and shaped plate out of the die, and curing subsequent yarns through the die again to form a preformed plate.
(7) Cutting the section bar: and (4) cutting the preformed plate in the step (6) into wedge-shaped strips with specific lengths to manufacture the glass fiber reinforced plastic epoxy wedge-shaped strips.
Example four
The formula of the glass fiber reinforced plastic epoxy wedge-shaped strip comprises the following raw materials in percentage by weight: 58 percent of epoxy resin, 40 percent of curing agent, 1.2 percent of demoulding powder and 0.8 percent of accelerator.
A production process of a glass fiber reinforced plastic epoxy wedge-shaped strip comprises the following steps:
(1) preparation of the device: whether the electrical equipment on the glass fiber reinforced plastic pultrusion equipment is normal or not and whether the electrical control cabinet is abnormal or not are checked, and whether the continuous production requirement is met or not is judged; checking whether the safety device is complete, whether the instrument is sensitive or reliable, whether the hydraulic system is continuous, firm and free of leakage, and whether the hydraulic cooling fan works normally; whether the amount of untwisted yarn placed and stored in the creel is enough or not.
(2) Threading by equipment: and (2) placing a forming die on a die station of the processing equipment in the step (1) by using a die car, calibrating the horizontal positions of the die and a pultrusion platform, installing the corresponding pre-former and the pre-forming plate on the die, threading according to the corresponding start yarn amount of the die, and fixing the yarns on the traction copper wires.
(3) Drawing yarns by equipment: the copper wire is utilized to draw the yarn layer by layer through the die, the yarn quantity which can not pass through the die at last is woven on the yarn which passes through the die, the yarn which passes through the die needs to be reserved for drawing the length to be 1.5m, the yarn is divided into two parts to be knotted in equal length and fixed on the drawing tool, the drawing tool is started, the position corresponding to the drawing tool is observed when the hydraulic workbench is adjusted to operate and reset, the knotted position of the yarn is prevented from being pressed and broken by the hydraulic platform, and the yarn drawing work is stopped after the yarn is all taken out of the die.
(4) Preheating a mould: and turning on a power supply, turning on temperature switches of the 1, 2 and 3 areas on the die, setting the temperature of the 1 area to be 186 ℃, the temperature of the 2 area to be 196 ℃, and the temperature of the 3 area to be 206 ℃, preheating the die for 1.5-2 h.
(5) Preparing resin: the formulation of claim 1, wherein the epoxy wedge strip is prepared by mixing the epoxy resin, the curing agent, the release powder, and the accelerator in sequence, stirring the prepared resin solution uniformly for 18min, and adding the prepared resin solution to the processing equipment.
(6) Pultrusion of the section bar: and opening the baking lamp to enable the baking lamp to keep a certain distance from the yarns, controlling the distance between the baking lamp and the yarns to be 36 cm, starting pultrusion equipment, controlling the pultrusion speed to be 7.5cm/min, enabling the pultrusion equipment to pull the yarns to penetrate through the resin solution for impregnation through a puller, pulling the impregnated yarns into a die, curing and shaping the yarns and the resin in the die to form a plate, continuously pulling the cured and shaped plate out of the die, and curing subsequent yarns through the die again to form a preformed plate.
(7) Cutting the section bar: and (4) cutting the preformed plate in the step (6) into wedge-shaped strips with specific lengths to manufacture the glass fiber reinforced plastic epoxy wedge-shaped strips.
And those not described in detail in this specification are well within the skill of those in the art.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (9)
1. The formula of the glass fiber reinforced plastic epoxy wedge-shaped strip is characterized by comprising the following raw materials in percentage by weight: 55-65% of epoxy resin, 30-43% of curing agent, 0.8-1.2% of demoulding powder and 0.7-0.8% of accelerator.
2. A production process of a glass fiber reinforced plastic epoxy wedge-shaped strip is characterized by comprising the following steps:
(1) preparation of the device: whether the electrical equipment on the processing equipment is normal or not is checked, whether the electrical control cabinet is abnormal or not is checked, and whether the continuous production requirement is met or not is judged; checking whether the safety device is complete, whether the instrument is sensitive or reliable, whether the hydraulic system is continuous, firm and free of leakage, and whether the hydraulic cooling fan works normally; whether the amount of untwisted yarn placed and stored in the creel is enough or not.
(2) Threading by equipment: and (2) placing a forming die on a die station of the processing equipment in the step (1) by using a die car, calibrating the horizontal positions of the die and a pultrusion platform, installing the corresponding pre-former and the pre-forming plate on the die, threading according to the corresponding start yarn amount of the die, and fixing the yarns on the traction copper wires.
(3) Drawing yarns by equipment: the copper wire is utilized to draw the yarn layer by layer through the die, the yarn quantity which can not pass through the die is finally woven on the yarn which passes through the die, the yarn is divided into two parts to be knotted in equal length and fixed on the drawing tool, the drawing tool is started, the position corresponding to the drawing tool when the hydraulic workbench is adjusted to operate and reset is noticed, the knotted position of the yarn is prevented from being pressed and broken by the hydraulic platform, and the yarn drawing work is stopped after the yarn is completely taken out of the die.
(4) Preheating a mould: and turning on a power supply, turning on temperature switches of the areas 1, 2 and 3 on the die, and preheating the die.
(5) Preparing resin: the formulation of claim 1, wherein the resin is prepared by stirring the prepared resin solution, and adding the prepared resin solution to a processing device.
(6) Pultrusion of the section bar: and opening the baking lamp to enable the baking lamp to keep a certain distance from the yarns, starting pultrusion equipment to enable the pultrusion equipment to pull the yarns to penetrate through the resin solution for impregnation through a puller, pulling the impregnated yarns into a die, curing and shaping the yarns and the resin in the die to form a plate, continuously pulling the cured and shaped plate out of the die, enabling subsequent yarns to be cured through the die again, and manufacturing the preformed plate.
(7) Cutting the section bar: and (4) cutting the preformed plate in the step (6) into wedge-shaped strips with specific lengths to manufacture the glass fiber reinforced plastic epoxy wedge-shaped strips.
3. The process for producing the glass fiber reinforced plastic epoxy wedge-shaped strip according to claim 2, wherein: the processing equipment in the step (1) is glass fiber reinforced plastic pultrusion equipment, the untwisted yarns are glass fiber yarns, and the specifications of the glass fiber yarns are 4800TEX and 9600 TEX.
4. The process for producing the glass fiber reinforced plastic epoxy wedge-shaped strip according to claim 2, wherein: the preformed plate in the step (2) needs to be strictly aligned with the mold during installation.
5. The process for producing the glass fiber reinforced plastic epoxy wedge-shaped strip according to claim 2, wherein: and (4) reserving the traction length of the yarn which passes through the die in the step (3) to be 1.5 m.
6. The process for producing the glass fiber reinforced plastic epoxy wedge-shaped strip according to claim 2, wherein: the temperature of the mold setting area 1 in the step (4) is 190-.
7. The process for producing the glass fiber reinforced plastic epoxy wedge-shaped strip according to claim 2, wherein: and (3) mixing the resin solution prepared in the step (5) according to the sequence of the epoxy resin, the curing agent, the demolding powder and the accelerator, and stirring for 15-20 min.
8. The process for producing the glass fiber reinforced plastic epoxy wedge-shaped strip according to claim 2, wherein: the baking lamp in the step (6) is hung above the yarns in the middle, the distance between the baking lamp and the yarns is controlled to be 30-40 cm in 6-10 months, and the distance between the baking lamp and the yarns is controlled to be 20-30 cm in 11-5 months.
9. The process for producing the glass fiber reinforced plastic epoxy wedge-shaped strip according to claim 2, wherein: and (4) controlling the pultrusion speed of the puller in the step (6) to be 7.0-8.5 cm/min.
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