CN104890262B - Method for manufacturing corrosion-resistant and flame-retardant glass steel grid through pultrusion profile production system - Google Patents
Method for manufacturing corrosion-resistant and flame-retardant glass steel grid through pultrusion profile production system Download PDFInfo
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- CN104890262B CN104890262B CN201510285316.4A CN201510285316A CN104890262B CN 104890262 B CN104890262 B CN 104890262B CN 201510285316 A CN201510285316 A CN 201510285316A CN 104890262 B CN104890262 B CN 104890262B
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000003063 flame retardant Substances 0.000 title claims abstract description 11
- 238000005260 corrosion Methods 0.000 title claims abstract description 10
- 230000007797 corrosion Effects 0.000 title claims abstract description 10
- 239000011521 glass Substances 0.000 title claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 7
- 239000010959 steel Substances 0.000 title claims abstract description 7
- 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 title abstract 4
- 239000003365 glass fiber Substances 0.000 claims abstract description 38
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 238000007598 dipping method Methods 0.000 claims abstract description 19
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- -1 accelerator Substances 0.000 claims description 5
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- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 150000002576 ketones Chemical class 0.000 claims description 5
- 235000012239 silicon dioxide Nutrition 0.000 claims description 5
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- 238000007711 solidification Methods 0.000 claims description 5
- 230000008023 solidification Effects 0.000 claims description 5
- 230000002950 deficient Effects 0.000 claims description 3
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- 238000002803 maceration Methods 0.000 claims description 3
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- 230000003245 working effect Effects 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000010924 continuous production Methods 0.000 abstract description 3
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- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 2
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- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
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- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
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- 238000010521 absorption reaction Methods 0.000 description 1
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- 239000003431 cross linking reagent Substances 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000005007 epoxy-phenolic resin Substances 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005491 wire drawing Methods 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
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
- B29C70/521—Pultrusion, i.e. forming and compressing by continuously pulling through a die and impregnating the reinforcement before the die
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
- B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
- B29B15/10—Coating or impregnating independently of the moulding or shaping step
- B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
- B29B15/14—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length of filaments or wires
-
- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
-
- 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
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/14—Peroxides
-
- 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
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Composite Materials (AREA)
- Moulding By Coating Moulds (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
The invention discloses a method for manufacturing a corrosion-resistant and flame-retardant glass steel grid through a pultrusion profile production system. The method comprises the following steps: glass fiber filaments are leaded into a guide system; and unsaturated polyester resins, a flame retardant, an antiaging agent, a curing agent, an accelerant and a reduction inhibitor are formed to flame-retardant resin mixed liquid for filling in an impregnation device with the mass proportion of 100: 10-30: 3-5: 1-2: 2-3: 0.5-1.5, then enter a molding system for dipping, enter a heating curing device for curing, are cooled and demolded to enter a reciprocating traction device for towing, and enter a cutting device for cutting and finishing to obtain a product. The method can flexibly manufacture according to the production requirements, adopts a continuous production process to cut according to a specified dimension, and is high in production efficiency, stable, safe and reliable.
Description
Technical field
The present invention relates to composite manufacture field, and in particular to one kind manufactures corrosion resistant resistance by drawing and extruding section bar production system
The method of combustion glass-fiber reinforced plastic grille.
Background technology
Glass fibre is a kind of Inorganic Non-metallic Materials of excellent performance, and species is various, and advantage is good insulating, thermostability
By force, corrosion resistance is good, high mechanical strength, but having the disadvantage property is crisp, and wearability is poor.It is with glass bead or discarded glass as raw material
Jing high temperature meltings, wire drawing, doff, the technique such as weave cotton cloth are manufactured into, and a diameter of several microns to twenties meters of its monofilament are micro-
Rice, equivalent to the 1/20-1/5 of a hairline, is all made up of per bundle fiber precursor hundreds of even thousands of monofilament.Glass
Fiber is typically used as the national economy such as the reinforcing material in composite, electrically insulating material and heat-insulating material, circuit substrate
Every field.
Fiberglass（FRP）Also referred to as GFRP, i.e. fiber-reinforced plastic, refer generally to glass fiber reinforcement unsaturated polyester,
Epoxy resin and phenolic resin as matrix resin.With the reinforced plastics that glass fibre or its product make reinforcing material, appellation is glass fibre
Reinforced plastics, or appellation fiberglass.Due to the resin variety difference for being used, therefore there are organic toughened glass, fiber glass epoxy, phenol
The title of aldehyde fiberglass.Light weight and hard, non-conductive, high mechanical strength, recycle it is few, it is corrosion-resistant.Steel manufacturing machine can be replaced
Device part and automobile, ship housing etc..
The basis of pulling and extruding glass fiber section bar is resin and glass fibre（Including cloth, felt etc.）, it is with fiber（Including
Glass fibre, carbon fiber, organic fiber and other metals, non-metallic fibers）For reinforcing material, with resin（Mainly asphalt mixtures modified by epoxy resin
Fat, alkyd resin, phenolic resin）For glue crosslinking agent, other auxiliary auxiliary material (major auxiliary burdens：Releasing agent, firming agent, catalyst,
Envelope mould agent, UV light stabilizers, clean mould water, gel coat etc.) be composited.It has that high temperature resistant, anticorrosive, intensity are high, proportion is little,
Moisture absorption is low, extension is little and a series of excellent specific properties such as good that insulate.
The content of the invention
The purpose of the present invention, is to overcome above-mentioned limitation, flexibly can be manufactured according to production requirement so as to provide one kind, is adopted
Cut by given size with continuous production processes, production efficiency is high, it is stable and safe and reliable by drawing and extruding section bar production system
The method of manufacture corrosion resistant fireproof glass steel grating.
The purpose of the present invention is achieved through the following technical solutions：One kind manufactures corrosion resistant resistance by drawing and extruding section bar production system
The method of combustion glass-fiber reinforced plastic grille, step is as follows：
A, by glass fiber uniform winding into hollow tubular, hollow cylinder is placed in rotating roller, by multiple glass fibre
It is standby on the creel that silk rotating roller is placed on yarn field, while the silk head of glass fiber is involved into preparation is put into guide plate；
B, by silk head import guidance system in, guidance system include the first guide plate, the second guide plate and the 3rd guide plate,
Live-roller is provided between second guide plate and the 3rd guide plate, silk head is fixed so as to glass by each guide plate, live-roller
Cellosilk can persistently drive to impregnation equipment；
C, glass fiber yarn be wound in rotating roller be placed in dipping device side, at the same by glass fiber yarn one put
In glass fiber silk head both sides, treat while entering dipping device；
D, by unsaturated polyester resin, fire retardant, age resister, firming agent, accelerator, anti-depressant prescription composition flame-retarded resin mix
In closing liquid injection dipping device, its mass ratio is 100：10-30：3-5：1-2：2-3：0.5-1.5；
E, glass fiber and glass fiber yarn are imported dipping device it is sufficiently impregnated with, subsequently into formation system, molding
System includes multiple maceration tanks with plastotype function is oriented to；
The device that is heating and curing is entered after F, dip forming, the device that is heating and curing has pressurization function, cools down after solidification simultaneously
The demoulding；
Drawn into reciprocating traction device after G, cooling and demolding, entering back into cutter sweep carries out cutting finishing, obtained
Product.
Preferably, the first guide plate, the second guide plate and the 3rd guide plate have transverse groove and cannelure.
Preferably, formation system has three-decker, and upper strata is transverse holes arrangement, and plastotype function is upper for grid sheet material
Surface；Middle level is longitudinal hole arrangement, and plastotype function is the left and right side of grid sheet material；Lower floor is liquid storage tank, and plastotype function is lattice
The lower surface of screen material, the glass fiber after the derived dipping of three-decker enters the device that is heating and curing.
Preferably, firming agent is peroxidating ketone mixture, and the accelerator is cobalt class accelerator, and the anti-depressant prescription is
Silicon dioxide, the age resister is UV type age resisters.
Preferably, the temperature that is heating and curing is 120-150 DEG C, keeps 1.5-2 hours heat time heating time.
Preferably, reciprocating type tracting device is provided with the first traction machine and the second traction machine, two traction machine asynchronous workings,
Product is imported cutter sweep by the second traction machine.
Preferably, obtaining needs inspection after product, and defective product is repaired or done over again by other fillers.
In sum, the present invention has advantages below：Flexibly can manufacture according to production requirement, using continuous production processes
Cut by given size, production efficiency is high, it is stable and safe and reliable.
Description of the drawings
Fig. 1 is drawing and extruding section bar operation system structure sketch；
Label in figure：The guide plates of 1- first, the guide plates of 2- second, the guide plates of 3- the 3rd, 4- dipping devices, 5- molding system
System, 6- are heating and curing device, 7- reciprocating traction devices, 8- cutter sweeps.
Specific embodiment
In order to deepen the understanding of the present invention, below in conjunction with embodiment, the invention will be further described, the embodiment
It is only used for explaining the present invention, does not constitute limiting the scope of the present invention.
Embodiment 1：A kind of method for manufacturing corrosion resistant fireproof glass steel grating by drawing and extruding section bar production system, step is such as
Under：By glass fiber uniform winding into hollow tubular, hollow cylinder is placed in rotating roller, by multiple glass fiber rotating rollers
It is standby on the creel being placed on yarn field, while the silk head of glass fiber is involved into preparation is put into guide plate；Silk head is led
To in system, guidance system includes the first guide plate 1, the second guide plate 2 and the 3rd guide plate 3, and the second guide plate 2 and the 3rd is led
Live-roller is provided between plate 3, silk head is fixed so that glass fiber can persistently be driven by each guide plate, live-roller
To impregnation equipment 4；First guide plate 1, the second guide plate 2 and the 3rd guide plate 3 have transverse groove and cannelure；By glass fibre
Yarn is wound in rotating roller and is placed in the side of dipping device 4, at the same by glass fiber yarn one be placed in glass fiber silk two
Side, treats to enter dipping device 4 simultaneously；By unsaturated polyester resin, fire retardant, age resister, firming agent, accelerator, anti-depressant prescription
In composition flame-retarded resin mixed liquor injection dipping device 4, its mass ratio is 100：20：2：1.5：2.5：1；By glass fiber
Dipping device 4 is imported with glass fiber yarn to be sufficiently impregnated with, subsequently into formation system 5, formation system includes that multiple bands are oriented to modeling
The maceration tank of type function；The device 6 that is heating and curing is entered after dip forming, the device 6 that is heating and curing has pressurization function, solidification simultaneously
Cooling and demolding afterwards；Drawn into reciprocating traction device 7 after cooling and demolding, entering back into cutter sweep 8 carries out cutting finishing, obtains
Obtain product；Formation system 5 has three-decker, and upper strata is transverse holes arrangement, and plastotype function is the upper surface of grid sheet material；Middle level
For longitudinal hole arrangement, plastotype function is the left and right side of grid sheet material；Lower floor is liquid storage tank, and plastotype function is under grid sheet material
Surface, the glass fiber after the derived dipping of three-decker enters the device 6 that is heating and curing.Firming agent is the mixing of peroxidating ketone
Thing, the accelerator is cobalt class accelerator, and the anti-depressant prescription is silicon dioxide, and the age resister is UV type age resisters.Plus
Heat curing temperature is 135 DEG C, keeps 1.75 hours heat time heating time.Reciprocating type tracting device 7 is provided with the first traction machine and second and leads
Draw machine, product is imported cutter sweep 8 by two traction machine asynchronous workings, the second traction machine.Obtaining needs inspection after product, and will
Defective product is repaired or done over again by other fillers.
Embodiment 2：Unsaturated polyester resin, fire retardant, age resister, firming agent, accelerator, anti-depressant prescription constitute fire-retardant tree
In fat mixed liquor injection dipping device 4, its mass ratio is 100：10：3：1：2：0.5, firming agent is the mixing of peroxidating ketone
Thing, accelerator is cobalt class accelerator, and anti-depressant prescription is silicon dioxide, and age resister is UV type age resisters；The device 6 that is heating and curing is same
When there is pressurization function, the temperature that is heating and curing be 120 DEG C, keep heat time heating time 1.5 hours, cooling and demolding after solidification.
Embodiment 3：Unsaturated polyester resin, fire retardant, age resister, firming agent, accelerator, anti-depressant prescription constitute fire-retardant tree
In fat mixed liquor injection dipping device 4, its mass ratio is 100：30：5：2：3：1.5, firming agent is the mixing of peroxidating ketone
Thing, accelerator is cobalt class accelerator, and anti-depressant prescription is silicon dioxide, and age resister is UV type age resisters；The device 6 that is heating and curing is same
When there is pressurization function, the temperature that is heating and curing be 150 DEG C, keep heat time heating time 2 hours, cooling and demolding after solidification.
Claims (1)
1. it is a kind of by drawing and extruding section bar production system manufacture corrosion resistant fireproof glass steel grating method, it is characterised in that step is such as
Under：
A, by glass fiber uniform winding into hollow tubular, hollow cylinder is placed in rotating roller, by multiple glass fibers rotation
It is standby on the creel that transfer roller is placed on yarn field, while the silk head of glass fiber is involved into preparation is put into guide plate；
B, by silk head import guidance system in, guidance system include the first guide plate（1）, the second guide plate（2）It is oriented to the 3rd
Plate（3）, second guide plate（2）With the 3rd guide plate（3）Between be provided with live-roller, by silk head pass through each guide plate, transmission
Roller is fixed so that glass fiber can persistently drive to impregnation equipment（4）；
C, glass fiber yarn is wound in rotating roller it is placed in dipping device（4）Side, at the same by glass fiber yarn one put
In glass fiber silk head both sides, treat while entering dipping device（4）；
D, by unsaturated polyester resin, fire retardant, age resister, firming agent, accelerator, anti-depressant prescription composition flame-retarded resin mixed liquor
Injection dipping device（4）In, its mass ratio is 100：10-30：3-5：1-2：2-3：0.5-1.5；
E, glass fiber and glass fiber yarn are imported into dipping device（4）It is sufficiently impregnated with, subsequently into formation system（5）, into
Type system includes multiple maceration tanks with plastotype function is oriented to；
The device that is heating and curing is entered after F, dip forming（6）, the device that is heating and curing（6）There is pressurization function, solidification simultaneously
Cooling and demolding afterwards；
Reciprocating traction device is entered after G, cooling and demolding（7）Drawn, entered back into cutter sweep（8）Cutting finishing is carried out, is obtained
Obtain product；
First guide plate（1）, the second guide plate（2）With the 3rd guide plate（3）There are transverse groove and cannelure；
The formation system（5）With three-decker, upper strata is transverse holes arrangement, and plastotype function is the upper surface of grid sheet material；
Middle level is longitudinal hole arrangement, and plastotype function is the left and right side of grid sheet material；Lower floor is liquid storage tank, and plastotype function is grid sheet material
Lower surface, the glass fiber after the derived dipping of three-decker enters the device that is heating and curing（6）；
The firming agent is peroxidating ketone mixture, and the accelerator is cobalt class accelerator, and the anti-depressant prescription is silicon dioxide,
The age resister is UV type age resisters；
It is described to be heating and curing temperature for 120-150 DEG C, keep 1.5-2 hours heat time heating time；
The reciprocating type tracting device（7）It is provided with the first traction machine and the second traction machine, two traction machine asynchronous workings, second leads
Draw machine and product is imported into cutter sweep（8）；
Inspection is needed after the acquisition product, and defective product is repaired or done over again by other fillers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510285316.4A CN104890262B (en) | 2015-05-29 | 2015-05-29 | Method for manufacturing corrosion-resistant and flame-retardant glass steel grid through pultrusion profile production system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510285316.4A CN104890262B (en) | 2015-05-29 | 2015-05-29 | Method for manufacturing corrosion-resistant and flame-retardant glass steel grid through pultrusion profile production system |
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| Publication Number | Publication Date |
|---|---|
| CN104890262A CN104890262A (en) | 2015-09-09 |
| CN104890262B true CN104890262B (en) | 2017-04-19 |
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| CN107415277B (en) * | 2017-06-16 | 2019-07-26 | 新誉集团有限公司 | A kind of preparation method of rail traffic air-conditioning composite material grid |
| CN108102407A (en) * | 2017-12-28 | 2018-06-01 | 江苏飞博尔新材料科技有限公司 | A kind of manufacturing method of high fire-retardance FRP pultruded products |
| CN108481764A (en) * | 2018-05-21 | 2018-09-04 | 泰安市中研复合材料科技有限公司 | A kind of method and device preparing grating band using composite fibre |
| CN109457685A (en) * | 2018-09-28 | 2019-03-12 | 李宏福 | A kind of thermoplastic molding grating, preparation method, application and its intermediary material |
| CN110591281A (en) * | 2019-04-01 | 2019-12-20 | 洛阳双瑞橡塑科技有限公司 | Grid and preparation method thereof |
| CN110591282A (en) * | 2019-04-01 | 2019-12-20 | 洛阳双瑞橡塑科技有限公司 | Fireproof grating and preparation method thereof |
| CN110641050A (en) * | 2019-09-28 | 2020-01-03 | 山东北方玻璃钢工程有限公司 | Manufacturing process of composite material bracket for supporting crops |
| KR102438624B1 (en) * | 2020-12-21 | 2022-08-31 | 주식회사 효진엔지니어링 | Semi-incombustible resin composition for FRP pultrusion |
| CN112795157A (en) * | 2021-01-12 | 2021-05-14 | 江苏时瑞新材料科技有限公司 | Novel heavy-duty glass fiber reinforced plastic grid and preparation method thereof |
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| CN101316695A (en) * | 2005-11-23 | 2008-12-03 | 米尔加德制造有限公司 | Method for producing pultruded components |
| CN103468015A (en) * | 2013-08-08 | 2013-12-25 | 南通时瑞塑胶制品有限公司 | Fiber reinforced plastic grid with automatic luminescence function, and production process thereof |
| CN103660314A (en) * | 2013-12-18 | 2014-03-26 | 冀州中意复合材料科技有限公司 | Automatic continuous production device for fiber reinforced plastic gratings |
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| CN101316695A (en) * | 2005-11-23 | 2008-12-03 | 米尔加德制造有限公司 | Method for producing pultruded components |
| CN103468015A (en) * | 2013-08-08 | 2013-12-25 | 南通时瑞塑胶制品有限公司 | Fiber reinforced plastic grid with automatic luminescence function, and production process thereof |
| CN103660314A (en) * | 2013-12-18 | 2014-03-26 | 冀州中意复合材料科技有限公司 | Automatic continuous production device for fiber reinforced plastic gratings |
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