CN112873900A - Processing technology of E-GRP material plate applying GRG die - Google Patents
Processing technology of E-GRP material plate applying GRG die Download PDFInfo
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- CN112873900A CN112873900A CN202011579457.4A CN202011579457A CN112873900A CN 112873900 A CN112873900 A CN 112873900A CN 202011579457 A CN202011579457 A CN 202011579457A CN 112873900 A CN112873900 A CN 112873900A
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- 239000000463 material Substances 0.000 title claims abstract description 43
- 238000005516 engineering process Methods 0.000 title claims abstract description 21
- 239000011152 fibreglass Substances 0.000 claims abstract description 66
- 238000004519 manufacturing process Methods 0.000 claims abstract description 24
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 239000000428 dust Substances 0.000 claims abstract description 6
- 239000003365 glass fiber Substances 0.000 claims description 72
- 239000004677 Nylon Substances 0.000 claims description 29
- 229920001778 nylon Polymers 0.000 claims description 29
- 238000005507 spraying Methods 0.000 claims description 28
- 238000005520 cutting process Methods 0.000 claims description 25
- 229920005989 resin Polymers 0.000 claims description 23
- 239000011347 resin Substances 0.000 claims description 23
- 239000003795 chemical substances by application Substances 0.000 claims description 20
- 238000005498 polishing Methods 0.000 claims description 20
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 18
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 17
- 239000003063 flame retardant Substances 0.000 claims description 17
- 230000002441 reversible effect Effects 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 11
- 230000001680 brushing effect Effects 0.000 claims description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical group [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 6
- 239000000347 magnesium hydroxide Substances 0.000 claims description 6
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 229910003460 diamond Inorganic materials 0.000 claims description 5
- 239000010432 diamond Substances 0.000 claims description 5
- 238000005728 strengthening Methods 0.000 claims description 5
- 210000002268 wool Anatomy 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 229920001567 vinyl ester resin Polymers 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000391 magnesium silicate Substances 0.000 claims description 3
- 229910052919 magnesium silicate Inorganic materials 0.000 claims description 3
- 235000019792 magnesium silicate Nutrition 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 238000001723 curing Methods 0.000 description 14
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000000465 moulding Methods 0.000 description 4
- 238000005979 thermal decomposition reaction Methods 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000012855 volatile organic compound Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
-
- 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
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
- B29C70/545—Perforating, cutting or machining during or after moulding
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention discloses a processing technology of an E-GRP material plate applying a GRG die, which comprises the following steps: the GRG mould is made of recyclable wax serving as a raw material and 3D (three-dimensional) numbers, a CNC (computerized numerical control) technician designs a tool path through programming, mills the GRG mould by a three-axis numerical control engraving machine, cleans residues and dust attached to the surface of the GRG mould, and then places the treated mould on the top of a GRP (glass-fiber reinforced plastic) workbench; according to the invention, through improving the processing technology of the E-GRP material plate, the GRG mould can be used for producing and processing the E-GRP material plate, no additional mould material is required to be purchased, the transportation cost of materials is reduced, the energy consumption is effectively reduced, the production efficiency can be improved, the problems that the GRP mould is required to be purchased or manufactured again at present, the material transportation cost and the labor intensity of workers are increased, the energy consumption in the production and processing of GRP products is high, the production efficiency of the products is reduced, and the production cost of enterprises can be reduced.
Description
Technical Field
The invention relates to the technical field of composite material plate processing, in particular to a processing technology of an E-GRP material plate applying a GRG die.
Background
The E-GRP is a composite material, comprises a substrate and a reinforcement, and can be suitable for indoor and outdoor design products with complex curved surfaces due to the unique performance advantages. GRP has excellent electric insulating performance, high adhesion, high mechanical strength, high heat resistance, high spinnability, high resistance to common acid, alkali, organic solvent and mold.
At present, when E-GRP material plates are produced, GRP molds need to be bought or manufactured again, the material transportation cost and the labor intensity of workers are increased, the workload of CNC milling and grinding molds is large, and the energy consumption of GRP products in production and processing is high, so that the production efficiency of the products is reduced, and the sustainable use target of the materials cannot be met.
Disclosure of Invention
The invention aims to provide a processing technology of an E-GRP material plate applying a GRG mould, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a processing technology of an E-GRP material plate applying a GRG die comprises the following steps:
(1) manufacturing and processing a mould: the GRG mould is made of recyclable wax serving as a raw material and 3D (three-dimensional) numbers, a CNC (computerized numerical control) technician designs a cutter path through programming, mills the GRG mould by a three-axis numerical control engraving machine, cleans residues and dust attached to the surface of the GRG mould, then places the treated mould on the top of a GRP (glass-fiber reinforced plastic) workbench, and uniformly coats a release agent on the surface of the GRG mould;
(2) spraying a gel coat layer: preparing gel coat according to the rated standard of the actual production requirement, then uniformly spraying the gel coat on the surface of a mould by using gel coat spraying equipment, then brushing dead corners which cannot be sprayed by using a wool brush, wherein the thickness is required to be uniform, and forming a gel coat layer after the gel coat is solidified;
(3) laying a glass fiber layer: cutting glass fibers according to the drawing requirements, paving a first layer of glass fibers on the surface of a gel coat layer, brushing the glass fibers with resin, heating and curing to form a glass fiber layer, sequentially paving the glass fiber layer, spraying a flame retardant between the layers until the GRP product reaches the target thickness, and polishing after the GRP product is completely cured to remove redundant burrs;
(4) strengthening treatment of GRP products: the method comprises the following steps of (1) carving a pre-buried line on the reverse side of a GRP product according to drawing requirements, cutting and pre-burying a needed nylon rope after the pre-buried line is carved, bonding the nylon rope on the reverse side of the product by talcum powder, wrapping the nylon rope by resin and glass fiber after the talcum powder is cured, wrapping three layers of the nylon rope, and requiring that the glass fiber and the nylon rope are completely attached without a cavity;
(5) and (3) installing a lifting hook of a GRP product: drawing the position of a lifting hook on the reverse side of a product according to the drawing requirement, polishing the embedded surface of the lifting hook to increase the adhesive force of the embedded surface of the lifting hook, bonding the polished lifting hook on the surface of the product by using talcum powder, and then wrapping the lifting hook by using glass fiber and resin, wherein no gap is required between the glass fiber and the lifting hook;
(6) edge cutting treatment and demolding: accurately drawing the side line of the GRP product according to the drawing requirement, then cutting and removing excess materials by using a GRP special diamond cutting machine, polishing the side opening, completely dismounting the flange edge of the GRG mould by using a gun drill after polishing, taking the GRG mould out from the side opening of the GRG mould until the whole GRP product is removed from the mould, and finally placing the gel coat face upwards on a working table.
Preferably, in the step (1), the release agent is uniformly coated on the surface of the GRG mold twice by using an imported GRP special release agent, and the release agent is required to completely cover the surface of the GRG mold.
Preferably, in the step (2), the size of the gel coat is LS-30PA, and the spraying of the gel coat is required to be precise and uniform in thickness.
Preferably, in the step (3), the glass fiber is made of chopped strand mat as a raw material, the chopped strand mat is required to be uniform and flat, the resin is vinyl ester resin, and the glass fiber is completely soaked.
Preferably, in the step (3), the temperature for heating, curing and forming is 60-70 ℃, and the curing and forming time is 3-4 hours.
Preferably, in the step (3), the glass fiber layer is pushed and pressed by a brush or a roller during laying, so that air bubbles are removed, and the smoothness and the flatness of the glass fiber layer are ensured.
Preferably, in the step (3), the flame retardant is a magnesium hydroxide-filled flame retardant, and the flame retardant completely covers the glass fiber layer.
Preferably, in the step (4), the talc powder is prepared from hydrous magnesium silicate by hydrochloric acid treatment, water washing and drying, and the nylon rope is required to be firm and seamless during adhesion.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, through improving the processing technology of the E-GRP material plate, the GRG mould can be used for producing and processing the E-GRP material plate, no additional mould material is required to be purchased, the transportation cost of materials is reduced, the energy consumption is effectively reduced, the production efficiency can be improved, the problems that the GRP mould is required to be purchased or manufactured again at present, the material transportation cost and the labor intensity of workers are increased, the energy consumption in the production and processing of GRP products is high, the production efficiency of the products is reduced, and the production cost of enterprises can be reduced.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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.
The first embodiment is as follows:
a processing technology of an E-GRP material plate applying a GRG die comprises the following steps:
(1) manufacturing and processing a mould: the GRG mould adopts recoverable wax as a raw material and is manufactured by using 3D (three-dimensional) numbers, a CNC technician designs a cutter path by programming, mills the GRG mould by a three-axis numerical control engraving machine, cleans residues and dust attached to the surface of the GRG mould, then places the treated mould on the top of a GRP workbench, and uniformly coats a release agent on the surface of the GRG mould, wherein the release agent coating standard is to uniformly coat the imported GRP special release agent on the surface of the GRG mould twice, the release agent is required to completely cover the surface of the GRG mould, has heat resistance and stress performance, is not easy to decompose or wear, can make the surface of a product smooth and clean, and brings convenience for the demoulding work of the GRP product;
(2) spraying a gel coat layer: preparing a gel coat according to a rated standard required by actual production, uniformly spraying the gel coat on the surface of a mold by using gel coat spraying equipment, brushing dead corners which cannot be sprayed by using a wool brush, wherein the thickness is required to be uniform, a gel coat layer is formed after the gel coat is cured, the specification of the gel coat is LS-30PA, the spraying requirement of the gel coat is accurate and uniform, the gel coat is an England Strobide LS-30PA gel coat and contains about 3-5% of styrene volatile organic compounds, and the protection and durability can be additionally enhanced by spraying the England Strobide gel coat, so that the service life of an E-GRP material plate can be prolonged;
(3) laying a glass fiber layer: cutting glass fibers according to the drawing requirements, paving a first layer of glass fibers on the surface of a gel coat layer, brushing the glass fibers with resin, heating and curing to form a glass fiber layer, sequentially paving the glass fiber layer, spraying a flame retardant between the layers until the GRP product reaches the target thickness, and polishing after the GRP product is completely cured to remove redundant burrs;
(4) strengthening treatment of GRP products: the method comprises the following steps of (1) carving a pre-buried line on the reverse side of a GRP product according to drawing requirements, cutting and pre-burying a needed nylon rope after the pre-buried line is carved, bonding the nylon rope on the reverse side of the product by talcum powder, wrapping the nylon rope by resin and glass fiber after the talcum powder is cured, wrapping three layers of the nylon rope, and requiring that the glass fiber and the nylon rope are completely attached without a cavity;
(5) and (3) installing a lifting hook of a GRP product: drawing the position of a lifting hook on the reverse side of a product according to the drawing requirement, polishing the embedded surface of the lifting hook to increase the adhesive force of the embedded surface of the lifting hook, bonding the polished lifting hook on the surface of the product by using talcum powder, and then wrapping the lifting hook by using glass fiber and resin, wherein no gap is required between the glass fiber and the lifting hook;
(6) edge cutting treatment and demolding: accurately drawing the side line of the GRP product according to the drawing requirement, then cutting and removing excess materials by using a GRP special diamond cutting machine, polishing the side opening, completely dismounting the flange edge of the GRG mould by using a gun drill after polishing, taking the GRG mould out from the side opening of the GRG mould until the whole GRP product is removed from the mould, and finally placing the gel coat face upwards on a working table.
Example two:
a processing technology of an E-GRP material plate applying a GRG die comprises the following steps:
(1) manufacturing and processing a mould: the GRG mould adopts recoverable wax as a raw material and is manufactured by using 3D (three-dimensional) numbers, a CNC technician designs a cutter path by programming, mills the GRG mould by a three-axis numerical control engraving machine, cleans residues and dust attached to the surface of the GRG mould, then places the treated mould on the top of a GRP workbench, and uniformly coats a release agent on the surface of the GRG mould, wherein the release agent coating standard is to uniformly coat the imported GRP special release agent on the surface of the GRG mould twice, the release agent is required to completely cover the surface of the GRG mould, has heat resistance and stress performance, is not easy to decompose or wear, can make the surface of a product smooth and clean, and brings convenience for the demoulding work of the GRP product;
(2) spraying a gel coat layer: preparing a gel coat according to a rated standard required by actual production, uniformly spraying the gel coat on the surface of a mold by using gel coat spraying equipment, brushing dead corners which cannot be sprayed by using a wool brush, wherein the thickness is required to be uniform, a gel coat layer is formed after the gel coat is cured, the specification of the gel coat is LS-30PA, the spraying requirement of the gel coat is accurate and uniform, the gel coat is an England Strobide LS-30PA gel coat and contains about 3-5% of styrene volatile organic compounds, and the protection and durability can be additionally enhanced by spraying the England Strobide gel coat, so that the service life of an E-GRP material plate can be prolonged;
(3) laying a glass fiber layer: cutting glass fibers according to drawing requirements, paving a first layer of glass fibers on the surface of a gel coat layer, brushing the glass fibers by using resin, heating and curing to form a glass fiber layer, sequentially paving the glass fiber layer and spraying a flame retardant between the layers until a GRP product reaches a target thickness, polishing after the GRP product is completely cured, removing redundant burrs, wherein the glass fibers are made of a chopped strand mat serving as a raw material, the chopped strand mat is required to be uniform and flat, the resin is vinyl ester resin, the glass fibers are completely soaked, the temperature for heating, curing and molding is 65 ℃, the curing and molding time is 3 hours, when the glass fibers are paved, a brush or a roller is used for pushing and pressing to remove air bubbles, the smoothness and flatness of the glass fiber layer are ensured, the flame retardant is a magnesium hydroxide filled flame retardant, the flame retardant completely covers the glass fiber layer, and the curing effect and curing efficiency of the glass fibers can be improved by a heating mode, meanwhile, the magnesium hydroxide has excellent buffering performance, reaction activity, adsorbability and thermal decomposition performance, can release bound water through thermal decomposition, absorbs a large amount of latent heat, and has the effects of inhibiting polymer decomposition and cooling combustible gas;
(4) strengthening treatment of GRP products: the method comprises the following steps of (1) carving a pre-buried line on the reverse side of a GRP product according to drawing requirements, cutting and pre-burying a needed nylon rope after the pre-buried line is carved, bonding the nylon rope on the reverse side of the product by talcum powder, wrapping the nylon rope by resin and glass fiber after the talcum powder is cured, wrapping three layers of the nylon rope, and requiring that the glass fiber and the nylon rope are completely attached without a cavity;
(5) and (3) installing a lifting hook of a GRP product: drawing the position of a lifting hook on the reverse side of a product according to the drawing requirement, polishing the embedded surface of the lifting hook to increase the adhesive force of the embedded surface of the lifting hook, bonding the polished lifting hook on the surface of the product by using talcum powder, and then wrapping the lifting hook by using glass fiber and resin, wherein no gap is required between the glass fiber and the lifting hook;
(6) edge cutting treatment and demolding: accurately drawing the side line of the GRP product according to the drawing requirement, then cutting and removing excess materials by using a GRP special diamond cutting machine, polishing the side opening, completely dismounting the flange edge of the GRG mould by using a gun drill after polishing, taking the GRG mould out from the side opening of the GRG mould until the whole GRP product is removed from the mould, and finally placing the gel coat face upwards on a working table.
Example three:
a processing technology of an E-GRP material plate applying a GRG die comprises the following steps:
(1) manufacturing and processing a mould: the GRG mould adopts recoverable wax as a raw material and is manufactured by using 3D (three-dimensional) numbers, a CNC technician designs a cutter path by programming, mills the GRG mould by a three-axis numerical control engraving machine, cleans residues and dust attached to the surface of the GRG mould, then places the treated mould on the top of a GRP workbench, and uniformly coats a release agent on the surface of the GRG mould, wherein the release agent coating standard is to uniformly coat the imported GRP special release agent on the surface of the GRG mould twice, the release agent is required to completely cover the surface of the GRG mould, has heat resistance and stress performance, is not easy to decompose or wear, can make the surface of a product smooth and clean, and brings convenience for the demoulding work of the GRP product;
(2) spraying a gel coat layer: preparing a gel coat according to a rated standard required by actual production, uniformly spraying the gel coat on the surface of a mold by using gel coat spraying equipment, brushing dead corners which cannot be sprayed by using a wool brush, wherein the thickness is required to be uniform, a gel coat layer is formed after the gel coat is cured, the specification of the gel coat is LS-30PA, the spraying requirement of the gel coat is accurate and uniform, the gel coat is an England Strobide LS-30PA gel coat and contains about 3-5% of styrene volatile organic compounds, and the protection and durability can be additionally enhanced by spraying the England Strobide gel coat, so that the service life of an E-GRP material plate can be prolonged;
(3) laying a glass fiber layer: cutting glass fibers according to drawing requirements, paving a first layer of glass fibers on the surface of a gel coat layer, brushing the glass fibers by using resin, heating and curing to form a glass fiber layer, sequentially paving the glass fiber layer and spraying a flame retardant between the layers until a GRP product reaches a target thickness, polishing after the GRP product is completely cured, removing redundant burrs, wherein the glass fibers are made of a chopped strand mat serving as a raw material, the chopped strand mat is required to be uniform and flat, the resin is vinyl ester resin, the glass fibers are completely soaked, the temperature for heating, curing and molding is 65 ℃, the curing and molding time is 3 hours, when the glass fibers are paved, a brush or a roller is used for pushing and pressing to remove air bubbles, the smoothness and flatness of the glass fiber layer are ensured, the flame retardant is a magnesium hydroxide filled flame retardant, the flame retardant completely covers the glass fiber layer, and the curing effect and curing efficiency of the glass fibers can be improved by a heating mode, meanwhile, the magnesium hydroxide has excellent buffering performance, reaction activity, adsorbability and thermal decomposition performance, can release bound water through thermal decomposition, absorbs a large amount of latent heat, and has the effects of inhibiting polymer decomposition and cooling combustible gas;
(4) strengthening treatment of GRP products: the method comprises the following steps of (1) carving a pre-buried line on the reverse side of a GRP product according to drawing requirements, cutting and pre-burying a needed nylon rope after the pre-buried line is drawn, bonding the nylon rope on the reverse side of the product by talcum powder, wrapping the nylon rope by resin and glass fiber after the talcum powder is cured, wherein three layers need to be wrapped, the glass fiber and the nylon rope need to be completely attached without a cavity, the talcum powder is prepared by processing hydrous magnesium silicate by hydrochloric acid, washing and drying, and the nylon rope is required to be firm and seamless when being bonded, so that the tensile strength and the connection stability of the nylon rope can be improved, and the nylon rope is prevented from falling off;
(5) and (3) installing a lifting hook of a GRP product: drawing the position of a lifting hook on the reverse side of a product according to the drawing requirement, polishing the embedded surface of the lifting hook to increase the adhesive force of the embedded surface of the lifting hook, bonding the polished lifting hook on the surface of the product by using talcum powder, and then wrapping the lifting hook by using glass fiber and resin, wherein no gap is required between the glass fiber and the lifting hook;
(6) edge cutting treatment and demolding: accurately drawing the side line of the GRP product according to the drawing requirement, then cutting and removing excess materials by using a GRP special diamond cutting machine, polishing the side opening, completely dismounting the flange edge of the GRG mould by using a gun drill after polishing, taking the GRG mould out from the side opening of the GRG mould until the whole GRP product is removed from the mould, and finally placing the gel coat face upwards on a working table.
According to the invention, through improving the processing technology of the E-GRP material plate, the GRG mould can be used for producing and processing the E-GRP material plate, no additional mould material is required to be purchased, the transportation cost of materials is reduced, the energy consumption is effectively reduced, the production efficiency can be improved, the problems that the GRP mould is required to be purchased or manufactured again at present, the material transportation cost and the labor intensity of workers are increased, the energy consumption in the production and processing of GRP products is high, the production efficiency of the products is reduced, and the production cost of enterprises can be reduced.
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 (8)
1. A processing technology of an E-GRP material plate applying a GRG die is characterized in that: the method comprises the following steps:
(1) manufacturing and processing a mould: the GRG mould is made of recyclable wax serving as a raw material and 3D (three-dimensional) numbers, a CNC (computerized numerical control) technician designs a cutter path through programming, mills the GRG mould by a three-axis numerical control engraving machine, cleans residues and dust attached to the surface of the GRG mould, then places the treated mould on the top of a GRP (glass-fiber reinforced plastic) workbench, and uniformly coats a release agent on the surface of the GRG mould;
(2) spraying a gel coat layer: preparing gel coat according to the rated standard of the actual production requirement, then uniformly spraying the gel coat on the surface of a mould by using gel coat spraying equipment, then brushing dead corners which cannot be sprayed by using a wool brush, wherein the thickness is required to be uniform, and forming a gel coat layer after the gel coat is solidified;
(3) laying a glass fiber layer: cutting glass fibers according to the drawing requirements, paving a first layer of glass fibers on the surface of a gel coat layer, brushing the glass fibers with resin, heating and curing to form a glass fiber layer, sequentially paving the glass fiber layer, spraying a flame retardant between the layers until the GRP product reaches the target thickness, and polishing after the GRP product is completely cured to remove redundant burrs;
(4) strengthening treatment of GRP products: the method comprises the following steps of (1) carving a pre-buried line on the reverse side of a GRP product according to drawing requirements, cutting and pre-burying a needed nylon rope after the pre-buried line is carved, bonding the nylon rope on the reverse side of the product by talcum powder, wrapping the nylon rope by resin and glass fiber after the talcum powder is cured, wrapping three layers of the nylon rope, and requiring that the glass fiber and the nylon rope are completely attached without a cavity;
(5) and (3) installing a lifting hook of a GRP product: drawing the position of a lifting hook on the reverse side of a product according to the drawing requirement, polishing the embedded surface of the lifting hook to increase the adhesive force of the embedded surface of the lifting hook, bonding the polished lifting hook on the surface of the product by using talcum powder, and then wrapping the lifting hook by using glass fiber and resin, wherein no gap is required between the glass fiber and the lifting hook;
(6) edge cutting treatment and demolding: accurately drawing the side line of the GRP product according to the drawing requirement, then cutting and removing excess materials by using a GRP special diamond cutting machine, polishing the side opening, completely dismounting the flange edge of the GRG mould by using a gun drill after polishing, taking the GRG mould out from the side opening of the GRG mould until the whole GRP product is removed from the mould, and finally placing the gel coat face upwards on a working table.
2. The processing technology of the E-GRP material plate applying the GRG die as claimed in claim 1, wherein: in the step (1), the standard of coating the release agent is to uniformly coat the surface of the GRG mould twice by using an imported GRP special release agent, and the release agent is required to completely cover the surface of the GRG mould.
3. The processing technology of the E-GRP material plate applying the GRG die as claimed in claim 1, wherein: in the step (2), the specification of the gel coat is LS-30PA, and the spraying requirement of the gel coat is that the thickness is accurate and uniform.
4. The processing technology of the E-GRP material plate applying the GRG die as claimed in claim 1, wherein: in the step (3), the glass fiber adopts chopped strand mat as a raw material, the chopped strand mat is required to be uniform and flat, the resin is vinyl ester resin, and the glass fiber is completely soaked.
5. The processing technology of the E-GRP material plate applying the GRG die as claimed in claim 1, wherein: in the step (3), the temperature for heating, curing and forming is 60-70 ℃, and the curing and forming time is 3-4 hours.
6. The processing technology of the E-GRP material plate applying the GRG die as claimed in claim 1, wherein: and (3) pushing and pressing the glass fiber layer by using a brush or a roller during laying, removing air bubbles and ensuring the smoothness and the flatness of the glass fiber layer.
7. The processing technology of the E-GRP material plate applying the GRG die as claimed in claim 1, wherein: in the step (3), the flame retardant is magnesium hydroxide filled flame retardant, and the flame retardant completely covers the glass fiber layer.
8. The processing technology of the E-GRP material plate applying the GRG die as claimed in claim 1, wherein: in the step (4), the talcum powder is prepared by processing hydrous magnesium silicate by hydrochloric acid, washing and drying, and the nylon rope is required to be firm and seamless during bonding.
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| CN202011579457.4A CN112873900A (en) | 2020-12-28 | 2020-12-28 | Processing technology of E-GRP material plate applying GRG die |
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| CN202011579457.4A CN112873900A (en) | 2020-12-28 | 2020-12-28 | Processing technology of E-GRP material plate applying GRG die |
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Application publication date: 20210601 |