CN114368162A - Production process of glass fiber reinforced plastic thermosetting molded protective fence - Google Patents
Production process of glass fiber reinforced plastic thermosetting molded protective fence Download PDFInfo
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- CN114368162A CN114368162A CN202210017418.8A CN202210017418A CN114368162A CN 114368162 A CN114368162 A CN 114368162A CN 202210017418 A CN202210017418 A CN 202210017418A CN 114368162 A CN114368162 A CN 114368162A
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- glass fiber
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- reinforced plastic
- fiber reinforced
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- 239000011152 fibreglass Substances 0.000 title claims abstract description 43
- 229920001187 thermosetting polymer Polymers 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 230000001681 protective effect Effects 0.000 title claims description 23
- 229920005989 resin Polymers 0.000 claims abstract description 35
- 239000011347 resin Substances 0.000 claims abstract description 35
- 238000003825 pressing Methods 0.000 claims abstract description 18
- 238000000465 moulding Methods 0.000 claims abstract description 16
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 15
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 claims abstract description 12
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 12
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims abstract description 9
- 229920000728 polyester Polymers 0.000 claims abstract description 7
- CWPKTBMRVATCBL-UHFFFAOYSA-N 3-[1-[1-[(2-methylphenyl)methyl]piperidin-4-yl]piperidin-4-yl]-1h-benzimidazol-2-one Chemical compound CC1=CC=CC=C1CN1CCC(N2CCC(CC2)N2C(NC3=CC=CC=C32)=O)CC1 CWPKTBMRVATCBL-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 6
- 239000002270 dispersing agent Substances 0.000 claims abstract description 6
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 6
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 6
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 6
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 6
- 238000009736 wetting Methods 0.000 claims abstract description 6
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 23
- 239000003365 glass fiber Substances 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 18
- 238000010008 shearing Methods 0.000 claims description 15
- 238000000748 compression moulding Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 14
- 239000002994 raw material Substances 0.000 claims description 13
- 238000002156 mixing Methods 0.000 claims description 12
- 238000009966 trimming Methods 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 8
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 5
- 238000011068 loading method Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 239000012778 molding material Substances 0.000 claims description 5
- -1 polyethylene Polymers 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 238000004826 seaming Methods 0.000 claims description 5
- 238000007493 shaping process Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims 1
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 6
- 230000032683 aging Effects 0.000 abstract description 4
- 239000003086 colorant Substances 0.000 abstract description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 14
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 238000007723 die pressing method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 5
- 235000021190 leftovers Nutrition 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 4
- 239000002912 waste gas Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 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
- 239000004593 Epoxy Substances 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000005007 epoxy-phenolic resin Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000825 pharmaceutical preparation Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
Images
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
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/001—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore a shaping technique combined with cutting, e.g. in parts or slices combined with rearranging and joining the cut parts
-
- 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
- C08J2300/00—Characterised by the use of unspecified polymers
-
- 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
- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a production process of a glass fiber reinforced plastic thermosetting molded guard rail, and particularly relates to the technical field of guard rail production, wherein the glass fiber reinforced plastic thermosetting molded guard rail comprises 19.53% of molding resin, 14.41% of saturated polyester low-shrinkage resin, 2.00% of color paste, 0.10% of wetting dispersant, 50.00% of aluminum hydroxide, 9.35% of calcium carbonate, 1.00% of titanium dioxide, 0.43% of TBPB, 1.48% of zinc stearate, 0.25% of p-benzoquinone and 1.45% of magnesium oxide paste. The invention realizes the mould pressing integral forming, reduces the cost, has high production efficiency, is environment-friendly and corrosion-resistant, has high strength, high aging resistance and acid-base resistance and long service life; the shapes and the colors of guard rail products can be selected and manufactured at will according to different use environments and requirements, the guard rails with different shapes can be manufactured by changing different types of molds, different customer requirements are met, and the guard rail has wide market prospect.
Description
Technical Field
The invention relates to the technical field of guard rail production, in particular to a production process of a glass fiber reinforced plastic thermosetting molded guard rail.
Background
The protective fence is used for protecting and protecting personal safety and equipment facilities in occasions such as roads, commercial districts, public places and the like. According to different using places, the guardrail can be divided into a roadside guardrail, a central isolation zone guardrail and a special place guardrail; the structure of the guardrail can be divided into a flexible guardrail, a semi-rigid guardrail and a rigid guardrail; the guardrail is classified into balcony guardrails, stair guardrails, air-conditioning guardrails, community guardrails, villa guardrails, anti-theft guardrails, stadium guardrails and the like according to functional purposes; the decorative characteristics are classified into artistic guardrails, iron guardrails, scenic guardrails, bay window guardrails, grid guardrails, American guardrails, European guardrails and the like.
The glass fiber reinforced plastic is reinforced plastic which uses glass fiber reinforced unsaturated polyester, epoxy resin and phenolic resin matrix and uses glass fiber or products thereof as reinforcing materials, is called glass fiber reinforced plastic, or glass fiber reinforced plastic, and is different from toughened glass. Because of the variety of the resin used, there are polyester glass fiber reinforced plastics, epoxy glass fiber reinforced plastics and phenolic glass fiber reinforced plastics. Light weight, hardness, non-conductivity, stable performance, high mechanical strength, less recovery and corrosion resistance. Can replace steel to manufacture machine parts, automobile shells, ship shells and the like. The glass fiber reinforced plastic protective fence made of glass fiber reinforced plastic has the beneficial characteristics of firmness, durability, corrosion resistance, light weight, hardness, non-conductivity, stable performance and the like.
The existing glass fiber reinforced plastic protective guard adopts a process of firstly manufacturing partial parts and then processing the parts into products, so that the production operation efficiency is low, and the cost is high, therefore, the invention provides a production process of the glass fiber reinforced plastic thermosetting die-pressed protective guard.
Disclosure of Invention
In order to overcome the defects in the prior art, the embodiment of the invention provides a production process of a glass fiber reinforced plastic thermosetting die-pressed protective fence, which realizes die-pressing integrated forming, reduces the cost, has high production efficiency, and is environment-friendly, corrosion-resistant, high in strength, high in ageing resistance, acid-base resistance and long in service life; the shapes and the colors of guard rail products can be selected and manufactured at will according to different use environments and requirements, the guard rails with different shapes can be manufactured by changing different types of molds, different customer requirements are met, and the guard rail has wide market prospect.
In order to achieve the purpose, the invention provides the following technical scheme: a glass fiber reinforced plastic thermosetting molded guard rail comprises, by mass, 19.53% of molded resin (the viscosity of the molded resin is 0.75-0.8Pa.s), 14.41% of saturated polyester low-shrinkage resin, 2.00% of color paste, 0.10% of wetting dispersant, 50.00% of aluminum hydroxide, 9.35% of calcium carbonate, 1.00% of titanium dioxide, 0.43% of TBPB, 1.48% of zinc stearate, 0.25% of p-benzoquinone and 1.45% of magnesium oxide paste.
The invention also comprises a production process of the glass fiber reinforced plastic thermosetting die-pressing protective guard, which comprises the following specific steps:
fully mixing the metered raw materials, and then making the mixture into resin paste through a kneader; the treatment measures of the generated particulate matters, non-methane total hydrocarbons, styrene and waste gas pollutants are as follows: secondary sealing, a gas collecting hood, a secondary activated carbon adsorption device, a 15m exhaust funnel and a pressure stabilizing exhaust system are arranged in the secondary sealing chamber to form micro-negative pressure to collect waste gas;
the kneader is an ideal device for kneading, mixing, vulcanizing and polymerizing high-viscosity and elastic-plastic materials, and can be used for producing silicon rubber, sealing glue, hot melt adhesive, food gum base, pharmaceutical preparations and the like. The kneader is a special mixing stirring equipment, and the most common use adopts two sigma-shaped paddle blades, adopts the tangent differential type range side by side, and one stirring paddle is fast, and the speed of one stirring paddle is slow to produce the shearing force, and different paddle speeds make the material of mixing can be sheared rapidly, thereby make the material misce bene.
Impregnating chopped glass fiber roving or glass fiber felt with the prepared resin paste, coating the chopped glass fiber roving or glass fiber felt with polyethylene films on two sides to form a sheet-shaped compression molding material, heating the sheet material by using a sheet material unit with a heating function, and impregnating the fiber resin by using a press machine to drive bubbles so as to compact the sheet material into a uniform thickness; the treatment measures of the generated particulate matters, non-methane total hydrocarbons, styrene and waste gas pollutants are as follows: secondary sealing, a gas collecting hood, a secondary activated carbon adsorption device, a 15m exhaust funnel and a pressure stabilizing exhaust system are arranged in the secondary sealing chamber to form micro-negative pressure to collect waste gas;
cutting the formed sheet into a proper mould pressing size; shearing the sheet by using a plate shearing machine, wherein the shape of the sheet is mostly square or round, the size of the sheet is 40-80% of the projection area of the surface of the product, the films on the two sheared surfaces of the sheet are removed before loading, and leftovers generated by shearing are collected and sold;
the plate shearing machine is a machine for shearing a plate by using a blade to do reciprocating linear motion relative to another blade, applies shearing force to metal plates with various thicknesses by using a reasonable blade gap and a moving upper blade and a fixed lower blade, and enables the plates to be broken and separated according to the required size;
preheating: in the preheating process, the sheet stock is heated to 150 ℃ and kept for 5 minutes, so that the viscosity of the resin is stabilized in the mould pressing viscosity range; the produced non-methane total hydrocarbon and styrene pollutants are treated by using a low-temperature plasma +15m exhaust funnel;
compression molding: after the sheet is put into a die, the sheet is heated by an electric bar connected with the die and pressurized by a press machine, and then is cured and formed; heating the die to 200 ℃ before feeding, installing the die horizontally, ensuring that the installation position is at the center of the table board of a press machine, thoroughly cleaning the die before pressing, then wiping a uniform release agent inside the die by using clean gauze, enabling the press machine to quickly descend after a sheet enters a die cavity, slowly applying required forming pressure when an upper die and a lower die are inosculated, and finishing foot making forming after a certain curing system, wherein the forming process parameters and the press machine operation conditions are as follows: the SMC forming temperature is 155 ℃ under 120 ℃ and the forming pressure is 210Mpa under 140 ℃, and the produced non-methane total hydrocarbon and styrene pollutants are treated by using a low-temperature plasma +15m exhaust pipe;
curing, demolding, cooling and forming: heating and curing the compression-molded die by using electricity for 120s, and naturally drying the die after curing to demould the die;
trimming: trimming the cured and demoulded glass fiber reinforced plastic product according to the requirements of customers, removing burrs and preparing the glass fiber reinforced plastic thermosetting die-pressed protective fence product meeting the specification requirements; finally shaping the product by using a seaming machine; the generated particulate pollutants are treated by using a gas collecting hood, a bag-type dust collector and a 15m exhaust funnel, and the generated leftovers are collected and sold.
And (6) inspection and warehousing: and the product is temporarily stored in a finished product warehouse after being inspected to be qualified.
The invention has the technical effects and advantages that:
1. the invention realizes the mould pressing integral forming, reduces the cost, has high production efficiency, and the guard rail product is environment-friendly, corrosion resistant, high in strength, high in ageing resistance and acid and alkali resistance and long in service life;
2. the shape and the color of the guard rail product can be selected and manufactured according to different use environments and requirements, and different shapes of guard rails can be manufactured by changing different types of molds, so that different customer requirements are met, and the guard rail product has wide market prospect.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Fig. 2 is a diagram of a glass fiber reinforced plastic thermosetting molded guard rail product.
Fig. 3 is a diagram of a glass fiber reinforced plastic thermosetting molded guard rail product.
Fig. 4 is a diagram of a glass fiber reinforced plastic thermosetting molded guard rail product.
Fig. 5 is a diagram of a glass fiber reinforced plastic thermosetting molded guard rail product.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The invention provides a glass fiber reinforced plastic thermosetting die-pressing protective guard, which comprises the following raw materials in percentage by mass: 19.53 percent of mould pressing resin, 14.41 percent of saturated polyester low-shrinkage resin, 2.00 percent of color paste, 0.10 percent of wetting dispersant (BYK-9010), 50.00 percent of aluminum hydroxide (aluminum hydroxide/H-WF-08B-LV in Zhongzhou), 9.35 percent of calcium carbonate (LD-400 Lida), 1.00 percent of titanium dioxide (rutile), 0.43 percent of TBPB, 1.48 percent of zinc stearate, 0.25 percent of p-benzoquinone (5 percent of styrene solution) and 24 percent of magnesium oxide paste (24 percent) cooperate with MA 301.45 percent.
A production process of a glass fiber reinforced plastic thermosetting molded protective guard comprises the following specific steps:
s1, mixing the raw materials: fully mixing the metered raw materials, and processing the mixture into resin paste by a kneader;
s2, molding: impregnating chopped glass fiber roving or glass fiber felt with the prepared resin paste, and coating the chopped glass fiber roving or glass fiber felt with polyethylene films on two sides to form a sheet-shaped compression molding material; heating the sheet material by using a sheet material machine set with a heating function, and soaking fiber resin by using a press machine to drive air bubbles so as to compact the sheet material into uniform thickness;
s3, sheet cutting: shearing the formed sheet into a proper mould pressing size by using a plate shearing machine; the cut sheet is square, the size of the cut sheet is 40% of the projection area of the surface of the product, the films on the cut two surfaces of the sheet are removed before loading, and leftovers generated by cutting are collected and sold;
s4, preheating: in the preheating process, the sheet stock is heated to 150 ℃ and kept for 5 minutes, so that the viscosity of the resin is stabilized in the mould pressing viscosity range;
s5, compression molding: before feeding the sheet, heating the die to 100 ℃, heating the sheet by an electric bar connected with the die and pressurizing the sheet by a press machine, and then curing and molding the sheet; the molding process parameters and the press operating conditions are as follows: the SMC is molded at 120 ℃ and the molding pressure is 140 MPa.
S6, solidifying, demolding, cooling and forming: heating and curing the die subjected to compression molding by using electricity for 120s, and naturally drying the die after curing to be demoulded;
s7, trimming: and trimming the cured and demoulded glass fiber reinforced plastic product according to the requirements of customers, removing burrs to prepare a glass fiber reinforced plastic thermosetting die-pressed protective guard product meeting the specification requirements, and finally shaping the product by using a seaming machine.
S8, checking and warehousing: and the product is temporarily stored in a finished product warehouse after being inspected to be qualified.
Example 2
The invention provides a glass fiber reinforced plastic thermosetting die-pressing protective guard, which comprises the following raw materials in percentage by mass: 19.53 percent of mould pressing resin, 14.41 percent of saturated polyester low-shrinkage resin, 2.00 percent of color paste, 0.10 percent of wetting dispersant (BYK-9010), 50.00 percent of aluminum hydroxide (aluminum hydroxide/H-WF-08B-LV in Zhongzhou), 9.35 percent of calcium carbonate (LD-400 Lida), 1.00 percent of titanium dioxide (rutile), 0.43 percent of TBPB, 1.48 percent of zinc stearate, 0.25 percent of p-benzoquinone (5 percent of styrene solution) and 24 percent of magnesium oxide paste (24 percent) cooperate with MA 301.45 percent.
A production process of a glass fiber reinforced plastic thermosetting molded protective guard comprises the following specific steps:
s1, mixing the raw materials: fully mixing the metered raw materials, and processing the mixture into resin paste by a kneader;
s2, molding: impregnating chopped glass fiber roving or glass fiber felt with the prepared resin paste, and coating the chopped glass fiber roving or glass fiber felt with polyethylene films on two sides to form a sheet-shaped compression molding material; heating the sheet material by using a sheet material machine set with a heating function, and soaking fiber resin by using a press machine to drive air bubbles so as to compact the sheet material into uniform thickness;
s3, sheet cutting: shearing the formed sheet into a proper mould pressing size by using a plate shearing machine; the cut sheet is square, the size of the cut sheet is 60 percent of the projection area of the surface of the product, films on the two cut surfaces of the sheet are removed before loading, and leftovers generated by cutting are collected and sold;
s4, preheating: in the preheating process, the sheet stock is heated to 150 ℃ and kept for 5 minutes, so that the viscosity of the resin is stabilized in the mould pressing viscosity range;
s5, compression molding: before feeding the sheet, heating the die to 150 ℃, heating the sheet by an electric bar connected with the die and pressurizing the sheet by a press machine, and then curing and molding the sheet; the molding process parameters and the press operating conditions are as follows: the SMC forming temperature is 130 ℃, and the forming pressure is 170 Mpa.
S6, solidifying, demolding, cooling and forming: heating and curing the die subjected to compression molding by using electricity for 120s, and naturally drying the die after curing to be demoulded;
s7, trimming: and trimming the cured and demoulded glass fiber reinforced plastic product according to the requirements of customers, removing burrs to prepare a glass fiber reinforced plastic thermosetting die-pressed protective guard product meeting the specification requirements, and finally shaping the product by using a seaming machine.
S8, checking and warehousing: and the product is temporarily stored in a finished product warehouse after being inspected to be qualified.
Example 3
The invention provides a glass fiber reinforced plastic thermosetting die-pressing protective guard, which comprises the following raw materials in percentage by mass: 19.53 percent of mould pressing resin, 14.41 percent of saturated polyester low-shrinkage resin, 2.00 percent of color paste, 0.10 percent of wetting dispersant (BYK-9010), 50.00 percent of aluminum hydroxide (aluminum hydroxide/H-WF-08B-LV in Zhongzhou), 9.35 percent of calcium carbonate (LD-400 Lida), 1.00 percent of titanium dioxide (rutile), 0.43 percent of TBPB, 1.48 percent of zinc stearate, 0.25 percent of p-benzoquinone (5 percent of styrene solution) and 24 percent of magnesium oxide paste (24 percent) cooperate with MA 301.45 percent.
A production process of a glass fiber reinforced plastic thermosetting molded protective guard comprises the following specific steps:
s1, mixing the raw materials: fully mixing the metered raw materials, and processing the mixture into resin paste by a kneader;
s2, molding: impregnating chopped glass fiber roving or glass fiber felt with the prepared resin paste, and coating the chopped glass fiber roving or glass fiber felt with polyethylene films on two sides to form a sheet-shaped compression molding material; heating the sheet material by using a sheet material machine set with a heating function, and soaking fiber resin by using a press machine to drive air bubbles so as to compact the sheet material into uniform thickness;
s3, sheet cutting: shearing the formed sheet into a proper mould pressing size by using a plate shearing machine; the cut sheet is circular, the size of the cut sheet is 80% of the projection area of the surface of the product, films on the two cut surfaces of the sheet are removed before loading, and leftovers generated by cutting are collected and sold;
s4, preheating: in the preheating process, the sheet stock is heated to 150 ℃ and kept for 5 minutes, so that the viscosity of the resin is stabilized in the mould pressing viscosity range;
s5, compression molding: before feeding the sheet, heating the die to 200 ℃, putting the sheet into the die, heating the sheet by an electric bar connected with the die, pressurizing the sheet by a press machine, and curing and molding the sheet; the molding process parameters and the press operating conditions are as follows: the SMC forming temperature is 155 ℃, and the forming pressure is 210 MPa.
S6, solidifying, demolding, cooling and forming: heating and curing the die subjected to compression molding by using electricity for 120s, and naturally drying the die after curing to be demoulded;
s7, trimming: and trimming the cured and demoulded glass fiber reinforced plastic product according to the requirements of customers, removing burrs to prepare a glass fiber reinforced plastic thermosetting die-pressed protective guard product meeting the specification requirements, and finally shaping the product by using a seaming machine.
S8, checking and warehousing: and the product is temporarily stored in a finished product warehouse after being inspected to be qualified.
Example 4
The guard rail performances of examples 1 to 3 were examined, and a commercial common guard rail was used as a control example:
the invention realizes the die pressing integrated molding, reduces the cost, has high production efficiency, and the guard rail product is environment-friendly, corrosion resistant, high in strength, high in aging resistance and acid and alkali resistance and long in service life.
And finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (6)
1. A glass steel thermosetting mould pressing rail guard which characterized in that: the used raw materials comprise, by mass, 19.53% of mould pressing resin, 14.41% of saturated polyester low shrinkage resin, 2.00% of color paste, 0.10% of wetting dispersant, 50.00% of aluminum hydroxide, 9.35% of calcium carbonate, 1.00% of titanium dioxide, 0.43% of TBPB, 1.48% of zinc stearate, 0.25% of p-benzoquinone and 1.45% of magnesium oxide paste.
2. The glass fiber reinforced plastic thermosetting molded guard rail as claimed in claim 1, wherein: the viscosity of the molding resin is 0.75 to 0.8 Pa.s.
3. A process for producing the glass fiber reinforced plastic thermosetting molded protective rail of claim 2, wherein: the method comprises the following specific steps:
s1, mixing the raw materials: fully mixing the metered raw materials, and processing the mixture into resin paste by a kneader;
s2, molding: impregnating chopped glass fiber roving or glass fiber felt with the prepared resin paste, and coating the chopped glass fiber roving or glass fiber felt with polyethylene films on two sides to form a sheet-shaped compression molding material;
s3, sheet cutting: shearing the formed sheet into a proper mould pressing size by using a plate shearing machine;
s4, preheating: in the preheating process, the sheet stock is heated to 150 ℃ and kept for 5 minutes, so that the viscosity of the resin is stabilized in the mould pressing viscosity range;
s5, compression molding: heating a mould to 100-200 ℃ before feeding the sheet, heating the sheet by an electric bar connected with the mould after the sheet is fed into the mould, pressurizing by a press machine, and then curing and forming;
s6, solidifying, demolding, cooling and forming: heating and curing the die subjected to compression molding by using electricity for 120s, and naturally drying the die after curing to be demoulded;
s7, trimming: and trimming the cured and demoulded glass fiber reinforced plastic product according to the requirements of customers, removing burrs to prepare a glass fiber reinforced plastic thermosetting die-pressed protective guard product meeting the specification requirements, and finally shaping the product by using a seaming machine.
S8, checking and warehousing: and the product is temporarily stored in a finished product warehouse after being inspected to be qualified.
4. The production process of the glass fiber reinforced plastic thermosetting molded protective fence as claimed in claim 3, wherein the production process comprises the following steps: in S2, the sheet material is heated by a sheet machine with a heating function, and the fibrous resin is impregnated with the heated sheet material by a press machine to drive air bubbles and compact the sheet material to a uniform thickness.
5. The production process of the glass fiber reinforced plastic thermosetting molded protective fence as claimed in claim 3, wherein the production process comprises the following steps: in S3, the cut sheet is square or round, the size is 40-80% of the projected area of the product surface, the cut sheet is stripped before loading, and the leftover is collected for sale.
6. The production process of the glass fiber reinforced plastic thermosetting molded protective fence as claimed in claim 3, wherein the production process comprises the following steps: the molding process parameters and press operating conditions in S5 were: the SMC molding temperature is 155 ℃ at 120 and 210MPa at 140 and 155 MPa.
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