CN112319004A - Preparation process of epoxy glass cloth laminated board for electromagnetic track - Google Patents
Preparation process of epoxy glass cloth laminated board for electromagnetic track Download PDFInfo
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- CN112319004A CN112319004A CN202011142213.XA CN202011142213A CN112319004A CN 112319004 A CN112319004 A CN 112319004A CN 202011142213 A CN202011142213 A CN 202011142213A CN 112319004 A CN112319004 A CN 112319004A
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- glass cloth
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1284—Application of adhesive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/04—Punching, slitting or perforating
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J161/00—Adhesives based on condensation polymers of aldehydes or ketones; Adhesives based on derivatives of such polymers
- C09J161/04—Condensation polymers of aldehydes or ketones with phenols only
- C09J161/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/04—Punching, slitting or perforating
- B32B2038/045—Slitting
-
- 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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
Abstract
The invention discloses a preparation process of an epoxy glass cloth laminated board for an electromagnetic track, which comprises the steps of glass cloth conveying, gluing, superposing, first heating, first pressing, cutting, second heating, second pressing, cooling and packaging in sequence; the glue solution during gluing comprises the following components in parts by weight: 52-58 parts of composite phenolic resin, 13-25 parts of polyisophthaloyl metaphenylene diamine, 3.7-6.2 parts of phenyl salicylate, 0.1-0.25 part of dimethyl imidazole, 32-44 parts of dimethyl formamide and 36-42 parts of barium sulfate. The preparation process of the epoxy glass cloth laminated board for the electromagnetic track can solve the problem that the electrical strength and the mechanical strength of the existing laminated board cannot meet the requirement of high strength.
Description
Technical Field
The invention relates to a preparation process of a laminated board, in particular to a preparation process of an epoxy glass cloth laminated board for an electromagnetic track.
Background
A laminate is one of the laminates. The laminated product is an integral body formed by laminating and hot-pressing two or more layers of fibers or fabrics impregnated with resin. The laminated product can be processed into various insulating and structural parts and is widely applied to motors, transformers, high and low voltage electric appliances, electrical instruments and electronic and electrical equipment.
The laminated board used on the electromagnetic track is required to have excellent electrical strength and mechanical strength in work, and has extremely high requirements on the structure while the electrical strength and the mechanical strength are improved, and the common laminated board is not enough to meet the high strength requirement, so that the design and development of the epoxy glass cloth laminated board for the electromagnetic track are urgently needed to solve the problems.
Disclosure of Invention
The invention aims to provide a preparation process of an epoxy glass cloth laminated board for an electromagnetic track, which aims to solve the problem that the electrical strength and the mechanical strength of the existing laminated board in the background technology cannot meet the requirement of high strength.
In order to achieve the purpose, the invention provides the following technical scheme: a preparation process of an epoxy glass cloth laminated board for an electromagnetic track comprises the steps of glass cloth conveying, gluing, overlapping, first heating, first compressing, cutting, second heating, second compressing, cooling and packaging in sequence;
the glue solution during gluing comprises the following components in parts by weight:
preferably, the preparation steps of the composite phenolic resin are as follows:
step 1: weighing p-xylene and putting the p-xylene and the p-xylene into a reaction kettle according to needs;
step 2: heating paraxylene filled in a reaction kettle to 88-92 ℃;
and step 3: introducing dry chlorine into the reaction kettle at the speed of 600 ml per minute, starting an ultraviolet lamp for irradiation, and stopping introducing the chlorine after continuously reacting for 10-15 hours;
and 4, step 4: introducing dry air into the reaction kettle, and flushing hydrogen chloride and chlorine in the reaction kettle;
and 5: cooling the reactants in the reaction kettle and filtering;
step 6: washing the filtered reactant with cold water until no acidity exists, and then washing with cold ethanol to obtain dichloro-p-toluene;
and 7: adding phenol into the obtained dichloro-p-toluene, heating to 116-125 ℃, stirring, gradually heating to 140 ℃, keeping for 2 hours, and cooling to obtain a reactant;
and 8: adding phenolic resin into the reactant obtained in the step 7 to obtain composite phenolic resin;
when the composite phenolic resin is prepared, the mass of p-xylene added is 5.1-5.4 times of that of phenol;
and the mass of the phenolic resin added in the step 8 is 3-4 times of that of the reactant.
Preferably, in the step 8, the phenolic resin comprises the following synthetic components in parts by weight:
the purity of each component of the phenolic resin is as follows: 100% of phenol, 36% of formaldehyde, 25% of hydrochloric acid and 95% of ethanol;
the preparation steps of the phenolic resin are as follows:
step 1: pouring the measured phenol and formaldehyde aqueous solution into a reaction kettle, and continuously stirring for 5 minutes to uniformly mix the phenol and formaldehyde aqueous solution;
step 2: adjusting the pH value of the mixture in the reaction kettle to keep the pH value within the range of 1.9-2.3;
and step 3: introducing water vapor into the reaction kettle, heating to enable the reaction to be carried out, stopping heating when the temperature is 85-90 ℃, and opening a condenser after reactants are just boiled;
and 4, step 4: and (3) introducing cooling water into the reaction kettle, stirring after 20 minutes, adding hydrochloric acid, and continuing to react to obtain the phenolic resin after the reaction is finished.
Preferably, the preparation device sequentially comprises a glass cloth conveying mechanism, a gluing mechanism, a conveying mechanism, a first heating mechanism, a first pressing mechanism, a cutting mechanism, a second heating mechanism and a second pressing mechanism from left to right;
the first pressing mechanism comprises a pressing mechanism frame, a first heating mechanism is arranged on the left side of the pressing mechanism frame, a pressing cylinder is arranged downwards at the top of the pressing mechanism frame, the piston rod end of the pressing cylinder is connected with a pressing block, a plurality of telescopic rods are symmetrically arranged on the pressing block, the piston end of each telescopic rod is connected to the corresponding pressing block, the fixed end of each telescopic rod is fixed at the top of the pressing mechanism frame, a spring frame is arranged on the periphery of the piston end of the corresponding pressing cylinder, the spring frame is connected to the pressing mechanism frame, a buffer plate is fixedly connected to the piston end of the corresponding pressing cylinder and located inside the spring frame, a plurality of buffer springs are connected between the buffer plate and the spring frame, limiting plates are respectively arranged on the front side and the rear side of the bottom of the pressing block, and limiting cylinders are, the limiting cylinder controls the movement of the limiting plate;
the first heating mechanism and the second heating mechanism have the same structure, and the first pressing mechanism and the second pressing mechanism have the same structure;
the temperature in the first heating mechanism is 150 ℃, and the pressure of the first pressing mechanism acting on the epoxy glass cloth laminated board is 6-8 Mpa;
the temperature in the second heating mechanism is 155-165 ℃, and the pressure of the second pressing mechanism acting on the epoxy glass cloth laminated board is 10 Mpa.
Preferably, glass cloth transport mechanism includes the conveying frame, be provided with a plurality of glass cloth in the conveying frame and put the winding up roller, the output of every glass cloth unwrapping wire roller all is provided with the glass cloth transfer roller, the winding up roller is put to the glass cloth and the glass cloth transfer roller is all installed in the conveying frame.
Preferably, the spreading mechanism includes the spreading machine body, compound phenolic resin is equipped with in the spreading machine body, be provided with multiunit glass cloth conveying roller on the spreading machine body, be provided with glue solution rabbling mechanism between two sets of glass cloth conveying roller, glue solution rabbling mechanism can be with compound phenolic resin stirring, the output side of spreading machine body is provided with the glue solution and paints the mechanism, including the multiunit in the glue solution paints the subassembly, every group paints and is provided with two relative rows of brush on the subassembly, and two rows of brush paint the glue solution on with the glass cloth evenly.
Preferably, the conveying mechanism comprises a mechanism frame, a plurality of waist circular holes are arranged on the front side and the rear side of the mechanism frame in parallel, a conveying roller mounting frame is arranged in the mechanism frame, conveying roller mounting seats are symmetrically arranged on the front side and the rear side of the conveying roller mounting frame, the conveying roller mounting seat is rotatably connected with a plurality of first conveying rollers, a plurality of second conveying rollers are correspondingly arranged above the first conveying rollers, two ends of the center shafts of the second conveying rollers are respectively connected with a positioning plate, the top of the positioning plate is connected with an adjusting cylinder, the top of the positioning plate is matched with the piston rod end of the adjusting cylinder, the adjusting cylinder is fixed at the top of the mechanism frame, two ends of a center shaft of the second conveying rollers are positioned in corresponding waist circular holes on the mechanism frame, and the second conveying rollers move up and down along with the expansion and contraction of a piston rod of the cylinder to adjust the distance between the second conveying rollers and the second conveying rollers;
the right side of first transfer roller is provided with a plurality of third transfer rollers, and a plurality of first transfer rollers cooperate with a plurality of third transfer rollers through the conveyer belt, all installs driving motor in the epaxial of a plurality of third transfer rollers.
Preferably, the first heating mechanism, the first pressing mechanism, the cutting mechanism, the second heating mechanism and the second pressing mechanism are sequentially arranged between the first conveying rollers and the third conveying rollers, and the conveying belts between the first conveying rollers and the third conveying rollers pass through the first heating mechanism, the first pressing mechanism, the cutting mechanism, the second heating mechanism and the second pressing mechanism.
Preferably, the cutting mechanism comprises a cutting mechanism frame, and a hydraulic cutting knife is arranged downwards at the top of the cutting mechanism frame.
Preferably, the first conveying roller, the second conveying roller and the third conveying roller are identical in structure.
Compared with the prior art, the invention provides a preparation process of an epoxy glass cloth laminated board for an electromagnetic track, which has the following beneficial effects:
1. a preparation method of epoxy glass cloth laminated board for electromagnetic orbit, adding poly m-phenylene isophthalamide and phenyl salicylate when the glue solution is prepared, effectively enhancing the electrical strength of the epoxy glass cloth laminated board, and improving the insulating property of the epoxy glass cloth laminated board;
2. a preparation technology of an epoxy glass cloth laminated board for an electromagnetic track breaks through the traditional limitation of resin used for gluing, and the composite phenolic resin is added into the phenolic resin, so that the electrical strength of the epoxy glass cloth laminated board is guaranteed at the early stage without losing the viscosity of the resin;
3. a hot pressing mode that first pressing is carried out immediately after first heating and second pressing is carried out immediately after second heating is adopted, the temperature of two times of heating is from low to high, the pressure intensity of two times of pressing is from small to large, and the defect that the thickness of an epoxy glass cloth laminated board generated by one-time hot pressing is not uniform is avoided;
4. a pressing block arranged on a pressing device used for pressing a laminated board is matched with a limiting plate to press the laminated board, and the limiting plate is adjustable through a limiting cylinder, so that the uniform stress of each part of the laminated board in the pressing process is ensured, and the uniform thickness of the epoxy glass cloth laminated board is ensured;
in conclusion, the laminated board prepared by the preparation process of the epoxy glass cloth laminated board for the electromagnetic track has high electrical strength and uniform thickness.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention without limiting the invention in which:
FIG. 1 is a schematic structural view of an epoxy glass cloth laminate manufacturing apparatus;
FIG. 2 is a schematic structural view of the frame of the pressing mechanism of FIG. 1 from another perspective;
in the figure: a transfer rack 100; a glass cloth unwinding roller 101; a glass cloth conveying roller 102; a glue spreader body 200; a glass cloth conveying roller 201; a glue solution stirring mechanism 202; a glue solution smearing mechanism 203; an application assembly 204; a daubing brush 205; a transfer mechanism 300; a mechanism frame 301; a transfer roller mounting bracket 302; a transfer roller mount 303; a first transfer roller 304; a second conveyance roller 305; positioning plate 306; an adjusting cylinder 307; a third conveyance roller 308; a hold-down mechanism frame 400; a hold-down cylinder 401; a buffer plate 401.1; a compression block 402; a telescopic rod 403; a spring frame 404; a limiting plate 405; a spacing cylinder 406; a buffer spring 404.1; a first heating mechanism 500; a cutting mechanism frame 600; a hydraulic cutting knife 601.
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.
The invention provides a technical scheme that: a preparation process of an epoxy glass cloth laminated board for an electromagnetic track comprises the steps of glass cloth conveying, gluing, superposing, first heating, first compressing, cutting, second heating, second compressing, cooling and packaging;
the glue solution during gluing comprises the following components in parts by weight:
the preparation method of the composite phenolic resin comprises the following steps:
step 1: weighing p-xylene and putting the p-xylene and the p-xylene into a reaction kettle according to needs;
step 2: heating paraxylene filled in a reaction kettle to 88-92 ℃;
and step 3: introducing dry chlorine into the reaction kettle at the speed of 600 ml per minute, starting an ultraviolet lamp for irradiation, and stopping introducing the chlorine after continuously reacting for 10-15 hours;
and 4, step 4: introducing dry air into the reaction kettle, and flushing hydrogen chloride and chlorine in the reaction kettle;
and 5: cooling the reactants in the reaction kettle and filtering;
step 6: washing the filtered reactant with cold water until no acidity exists, and then washing with cold ethanol to obtain dichloro-p-toluene;
and 7: adding phenol into the obtained dichloro-p-toluene, heating to 116-125 ℃, stirring, gradually heating to 140 ℃, keeping for 2 hours, and cooling to obtain a reactant;
and 8: adding phenolic resin into the reactant obtained in the step 7 to obtain composite phenolic resin;
when the composite phenolic resin is prepared, the mass of p-xylene added is 5.1-5.4 times of that of phenol;
the mass of the phenolic resin added in the step 8 is 3-4 times of that of the reactant;
the phenolic resin in the step 8 comprises the following synthetic components in parts by weight:
the purity of each component of the phenolic resin is as follows: 100% of phenol, 36% of formaldehyde, 25% of hydrochloric acid and 95% of ethanol;
the preparation steps of the phenolic resin are as follows:
step 1: pouring the measured phenol and formaldehyde aqueous solution into a reaction kettle, and continuously stirring for 5 minutes to uniformly mix the phenol and formaldehyde aqueous solution;
step 2: adjusting the pH value of the mixture in the reaction kettle to keep the pH value within the range of 1.9-2.3;
and step 3: introducing water vapor into the reaction kettle, heating to enable the reaction to be carried out, stopping heating when the temperature is 85-90 ℃, and opening a condenser after reactants are just boiled;
and 4, step 4: introducing cooling water into the reaction kettle, stirring after 20 minutes, adding hydrochloric acid, and continuing to react to obtain phenolic resin after the reaction is finished;
referring to fig. 1 and 2, a device for preparing an epoxy glass cloth laminated board for an electromagnetic track sequentially comprises a glass cloth conveying mechanism, a glue coating mechanism, a conveying mechanism, a first heating mechanism, a first pressing mechanism, a cutting mechanism, a second heating mechanism and a second pressing mechanism from left to right;
the glass cloth conveying mechanism is adopted during glass cloth conveying, the glass cloth conveying mechanism comprises a conveying rack 100, a plurality of glass cloth unwinding rollers 101 are arranged in the conveying rack 100, a glass cloth conveying roller 102 is arranged at the output end of each glass cloth unwinding roller 101, and the glass cloth unwinding rollers 101 and the glass cloth conveying rollers 102 are both mounted on the conveying rack 100;
the glue spreading mechanism is adopted during glue spreading, the glue spreading mechanism comprises a glue spreading machine body 200, composite phenolic resin is filled in the glue spreading machine body 200, a plurality of groups of glass cloth conveying rollers 201 are arranged on the glue spreading machine body 200, a glue solution stirring mechanism 202 is arranged between the two groups of glass cloth conveying rollers 201, the glue solution stirring mechanism 202 can uniformly stir the composite phenolic resin, a glue solution smearing mechanism 203 is arranged on the output side of the glue spreading machine body 200, a plurality of groups of smearing components 204 are arranged in the glue solution smearing mechanism 203, two opposite rows of smearing brushes 205 are arranged on each group of smearing components 204, and the glue solution on the glass cloth is smeared uniformly by the two rows of smearing brushes 205;
glass cloth is laminated after being coated with glue, the glass cloth is laminated in sequence, the glass cloth passes through the conveying mechanism 300 after being laminated, the conveying mechanism 300 comprises a mechanism frame 301, a plurality of waist circular holes are formed in the front side and the rear side of the mechanism frame 301 in parallel, a conveying roller mounting frame 302 is arranged in the mechanism frame 301, conveying roller mounting seats 303 are symmetrically arranged on the front side and the rear side of the conveying roller mounting frame 302, a plurality of first conveying rollers 304 are rotatably connected to the conveying roller mounting seats 303, a plurality of second conveying rollers 305 are correspondingly arranged above the first conveying rollers 304, positioning plates 306 are respectively connected to two ends of a central shaft of the second conveying rollers 305, an adjusting cylinder 307 is connected to the top of each positioning plate 306, the top of each positioning plate 306 is matched with the end of a piston rod of the adjusting cylinder 307, and the adjusting cylinder 307 is fixed to the top of the mechanism frame 301, two ends of the center shaft of the plurality of second conveying rollers 305 are located in corresponding kidney-round holes on the mechanism frame 301, and along with the extension and contraction of the piston rod of the air cylinder, the plurality of second conveying rollers 305 move up and down to adjust the distance between the plurality of second conveying rollers 305;
a plurality of third conveying rollers 308 are arranged on the right side of the first conveying roller 304, the first conveying rollers 304 are matched with the third conveying rollers 308 through conveying belts, and driving motors are arranged on the center shafts of the third conveying rollers 308;
the first heating mechanism, the first pressing mechanism, the cutting mechanism, the second heating mechanism and the second pressing mechanism are sequentially arranged between the plurality of first conveying rollers 304 and the plurality of third conveying rollers 308, and the conveying belts between the plurality of first conveying rollers 304 and the plurality of third conveying rollers 308 pass through the first heating mechanism, the first pressing mechanism, the cutting mechanism, the second heating mechanism and the second pressing mechanism;
the first-time pressing mechanism comprises a pressing mechanism frame 400, a first-time heating mechanism 500 is arranged on the left side of the pressing mechanism frame 400, a pressing cylinder 401 is downwards arranged at the top of the pressing mechanism frame 400, a piston rod end of the pressing cylinder 401 is connected with a pressing block 402, a plurality of telescopic rods 403 are symmetrically arranged on the pressing block 402, a piston end of each telescopic rod 403 is connected to the corresponding pressing block 402, a fixed end of each telescopic rod 403 is fixed at the top of the pressing mechanism frame 400, a spring frame 404 is arranged on the periphery of the piston end of the corresponding pressing cylinder 401, the spring frames 404 are connected to the pressing mechanism frame 400, a buffer plate 401.1 is fixedly connected to the piston end of the corresponding pressing cylinder 401, the buffer plate 401.1 is located inside the spring frame 404, a plurality of buffer springs 404.1 are connected between the buffer plate 401.1 and the spring frame 404, and limiting plates 405 are respectively arranged on the front side, a limiting air cylinder 406 is arranged outside the limiting plate 405, and the limiting air cylinder 406 controls the movement of the limiting plate 405;
the cutting mechanism comprises a cutting mechanism frame 600, a hydraulic cutting knife 601 is arranged downwards at the top of the cutting mechanism frame 600, and the hydraulic cutting knife 601 can cut the laminated board;
the first conveying roller 304, the second conveying roller 305 and the third conveying roller 308 have the same structure;
the first heating mechanism and the second heating mechanism have the same structure, and the first pressing mechanism and the second pressing mechanism have the same structure;
the temperature in the first heating mechanism is 150 ℃, and the pressure of the first pressing mechanism acting on the epoxy glass cloth laminated board is 6-8 Mpa;
the temperature in the second heating mechanism is 155-165 ℃, and the pressure of the second pressing mechanism acting on the epoxy glass cloth laminated board is 10 Mpa;
example 1
The preparation method of the epoxy glass cloth laminated board for the electromagnetic track comprises the steps of glass cloth conveying, gluing, superposing, first heating, first pressing, cutting, second heating, second pressing, cooling and packaging;
the glue solution during gluing comprises the following components in parts by weight:
the preparation method of the composite phenolic resin comprises the following steps:
step 1: weighing p-xylene and putting the p-xylene and the p-xylene into a reaction kettle according to needs;
step 2: heating p-xylene filled in a reaction kettle to 92 ℃;
and step 3: introducing dry chlorine into the reaction kettle at the speed of 600 ml per minute, starting an ultraviolet lamp for irradiation, and stopping introducing the chlorine after continuously reacting for 12 hours;
and 4, step 4: introducing dry air into the reaction kettle, and flushing hydrogen chloride and chlorine in the reaction kettle;
and 5: cooling the reactants in the reaction kettle and filtering;
step 6: washing the filtered reactant with cold water until no acidity exists, and then washing with cold ethanol to obtain dichloro-p-toluene;
and 7: adding phenol into the obtained dichloro-p-toluene, heating to 120 ℃, stirring, gradually heating to 140 ℃, keeping for 2 hours, and cooling to obtain a reactant;
and 8: adding phenolic resin into the reactant obtained in the step 7 to obtain composite phenolic resin;
the mass of p-xylene added in the preparation of the composite phenolic resin is 5.1 times of that of phenol;
the mass of the phenolic resin added in the step 8 is 3 times of that of the reactant;
the phenolic resin in the step 8 comprises the following synthetic components in parts by weight:
the purity of each component of the phenolic resin is as follows: 100% of phenol, 36% of formaldehyde, 25% of hydrochloric acid and 95% of ethanol;
the preparation steps of the phenolic resin are as follows:
step 1: pouring the measured phenol and formaldehyde aqueous solution into a reaction kettle, and continuously stirring for 5 minutes to uniformly mix the phenol and formaldehyde aqueous solution;
step 2: adjusting the pH value of the mixture in the reaction kettle to 2.3;
and step 3: introducing water vapor into the reaction kettle, heating to enable the reaction to be carried out, heating to 85 ℃, stopping heating, and starting a condenser after reactants are just boiled;
and 4, step 4: introducing cooling water into the reaction kettle, stirring after 20 minutes, adding hydrochloric acid, and continuing to react to obtain phenolic resin after the reaction is finished;
the first heating adopts a first heating mechanism, the temperature in the first heating mechanism is 150 ℃, the first pressing adopts a first pressing mechanism, and the pressure of the first pressing mechanism acting on the epoxy glass cloth laminated board is 6 Mpa;
the second heating adopts a second heating mechanism, the temperature in the second heating mechanism is 155 ℃, the second pressing adopts a second pressing mechanism, and the pressure of the second pressing mechanism acting on the epoxy glass cloth laminated board is 10 Mpa;
example 2
The preparation method of the epoxy glass cloth laminated board for the electromagnetic track comprises the steps of glass cloth conveying, gluing, superposing, first heating, first pressing, cutting, second heating, second pressing, cooling and packaging;
the glue solution during gluing comprises the following components in parts by weight:
the preparation method of the composite phenolic resin comprises the following steps:
step 1: weighing p-xylene and putting the p-xylene and the p-xylene into a reaction kettle according to needs;
step 2: heating p-xylene filled in a reaction kettle to 90 ℃;
and step 3: introducing dry chlorine into the reaction kettle at the speed of 600 ml per minute, starting an ultraviolet lamp for irradiation, and stopping introducing the chlorine after continuously reacting for 15 hours;
and 4, step 4: introducing dry air into the reaction kettle, and flushing hydrogen chloride and chlorine in the reaction kettle;
and 5: cooling the reactants in the reaction kettle and filtering;
step 6: washing the filtered reactant with cold water until no acidity exists, and then washing with cold ethanol to obtain dichloro-p-toluene;
and 7: adding phenol into the obtained dichloro-p-toluene, heating to 125 ℃, stirring, gradually heating to 140 ℃, keeping for 2 hours, and cooling to obtain a reactant;
and 8: adding phenolic resin into the reactant obtained in the step 7 to obtain composite phenolic resin;
the mass of p-xylene added in the preparation of the composite phenolic resin is 5.4 times of that of phenol;
the mass of the phenolic resin added in the step 8 is 4 times of that of the reactant;
the phenolic resin in the step 8 comprises the following synthetic components in parts by weight:
the purity of each component of the phenolic resin is as follows: 100% of phenol, 36% of formaldehyde, 25% of hydrochloric acid and 95% of ethanol;
the preparation steps of the phenolic resin are as follows:
step 1: pouring the measured phenol and formaldehyde aqueous solution into a reaction kettle, and continuously stirring for 5 minutes to uniformly mix the phenol and formaldehyde aqueous solution;
step 2: adjusting the pH value of the mixture in the reaction kettle to 1.9;
and step 3: introducing water vapor into the reaction kettle, heating to enable the reaction to be carried out, heating to 90 ℃, stopping heating, and opening a condenser after reactants are just boiled;
and 4, step 4: introducing cooling water into the reaction kettle, stirring after 20 minutes, adding hydrochloric acid, and continuing to react to obtain phenolic resin after the reaction is finished;
the first heating adopts a first heating mechanism, the temperature in the first heating mechanism is 150 ℃, the first pressing adopts a first pressing mechanism, and the pressure of the first pressing mechanism acting on the epoxy glass cloth laminated board is 8 Mpa;
the second heating adopts a second heating mechanism, the temperature in the second heating mechanism is 165 ℃, the second pressing adopts a second pressing mechanism, and the pressure of the second pressing mechanism acting on the epoxy glass cloth laminated board is 10 Mpa;
example 3
The preparation method of the epoxy glass cloth laminated board for the electromagnetic track comprises the steps of glass cloth conveying, gluing, superposing, first heating, first pressing, cutting, second heating, second pressing, cooling and packaging;
the glue solution during gluing comprises the following components in parts by weight:
the preparation method of the composite phenolic resin comprises the following steps:
step 1: weighing p-xylene and putting the p-xylene and the p-xylene into a reaction kettle according to needs;
step 2: heating p-xylene filled in a reaction kettle to 88 ℃;
and step 3: introducing dry chlorine into the reaction kettle at the speed of 600 ml per minute, starting an ultraviolet lamp for irradiation, and stopping introducing the chlorine after continuously reacting for 14 hours;
and 4, step 4: introducing dry air into the reaction kettle, and flushing hydrogen chloride and chlorine in the reaction kettle;
and 5: cooling the reactants in the reaction kettle and filtering;
step 6: washing the filtered reactant with cold water until no acidity exists, and then washing with cold ethanol to obtain dichloro-p-toluene;
and 7: adding phenol into the obtained dichloro-p-toluene, heating to 116 ℃, stirring, gradually heating to 140 ℃, keeping for 2 hours, and cooling to obtain a reactant;
and 8: adding phenolic resin into the reactant obtained in the step 7 to obtain composite phenolic resin;
the mass of p-xylene added in the preparation of the composite phenolic resin is 5.2 times of that of phenol;
the mass of the phenolic resin added in the step 8 is 3.4 times of that of the reactant;
the phenolic resin in the step 8 comprises the following synthetic components in parts by weight:
the purity of each component of the phenolic resin is as follows: 100% of phenol, 36% of formaldehyde, 25% of hydrochloric acid and 95% of ethanol;
the preparation steps of the phenolic resin are as follows:
step 1: pouring the measured phenol and formaldehyde aqueous solution into a reaction kettle, and continuously stirring for 5 minutes to uniformly mix the phenol and formaldehyde aqueous solution;
step 2: adjusting the pH value of the mixture in the reaction kettle to 2.2;
and step 3: introducing water vapor into the reaction kettle, heating to enable the reaction to be carried out, heating to 88 ℃, stopping heating, and starting a condenser after reactants are just boiled;
and 4, step 4: introducing cooling water into the reaction kettle, stirring after 20 minutes, adding hydrochloric acid, and continuing to react to obtain phenolic resin after the reaction is finished;
the first heating adopts a first heating mechanism, the temperature in the first heating mechanism is 150 ℃, the first pressing adopts a first pressing mechanism, and the pressure of the first pressing mechanism acting on the epoxy glass cloth laminated board is 6.4 Mpa;
the second heating adopts a second heating mechanism, the temperature in the second heating mechanism is 160 ℃, the second pressing adopts a second pressing mechanism, and the pressure of the second pressing mechanism acting on the epoxy glass cloth laminated board is 10 Mpa;
example 4
The preparation method of the epoxy glass cloth laminated board for the electromagnetic track comprises the steps of glass cloth conveying, gluing, superposing, first heating, first pressing, cutting, second heating, second pressing, cooling and packaging;
the glue solution during gluing comprises the following components in parts by weight:
the preparation method of the composite phenolic resin comprises the following steps:
step 1: weighing p-xylene and putting the p-xylene and the p-xylene into a reaction kettle according to needs;
step 2: heating p-xylene filled in a reaction kettle to 90 ℃;
and step 3: introducing dry chlorine into the reaction kettle at the speed of 600 ml per minute, starting an ultraviolet lamp for irradiation, and stopping introducing the chlorine after continuously reacting for 10 hours;
and 4, step 4: introducing dry air into the reaction kettle, and flushing hydrogen chloride and chlorine in the reaction kettle;
and 5: cooling the reactants in the reaction kettle and filtering;
step 6: washing the filtered reactant with cold water until no acidity exists, and then washing with cold ethanol to obtain dichloro-p-toluene;
and 7: adding phenol into the obtained dichloro-p-toluene, heating to 120 ℃, stirring, gradually heating to 140 ℃, keeping for 2 hours, and cooling to obtain a reactant;
and 8: adding phenolic resin into the reactant obtained in the step 7 to obtain composite phenolic resin;
the mass of p-xylene added in the preparation of the composite phenolic resin is 5.3 times of that of phenol;
the mass of the phenolic resin added in the step 8 is 3.6 times of that of the reactant;
the phenolic resin in the step 8 comprises the following synthetic components in parts by weight:
the purity of each component of the phenolic resin is as follows: 100% of phenol, 36% of formaldehyde, 25% of hydrochloric acid and 95% of ethanol;
the preparation steps of the phenolic resin are as follows:
step 1: pouring the measured phenol and formaldehyde aqueous solution into a reaction kettle, and continuously stirring for 5 minutes to uniformly mix the phenol and formaldehyde aqueous solution;
step 2: adjusting the pH value of the mixture in the reaction kettle to 2.1;
and step 3: introducing water vapor into the reaction kettle, heating to carry out the reaction, stopping heating when the temperature is 86 ℃, and opening a condenser after reactants are just boiled;
and 4, step 4: introducing cooling water into the reaction kettle, stirring after 20 minutes, adding hydrochloric acid, and continuing to react to obtain phenolic resin after the reaction is finished;
the temperature in the first heating mechanism is 150 ℃, and the pressure of the first pressing mechanism acting on the epoxy glass cloth laminated board is 7.6 Mpa;
the temperature in the second heating mechanism is 158 ℃, and the pressure of the second pressing mechanism acting on the epoxy glass cloth laminated board is 10 Mpa;
comparative example 1
The preparation method of the epoxy glass cloth laminated board comprises the steps of glass cloth conveying, gluing, superposing, hot pressing, cutting, cooling and packaging;
the glue solution used for gluing comprises the following components in parts by weight:
the phenolic resin in the glue solution component comprises the following synthetic components in parts by weight:
the purity of each component of the phenolic resin is as follows: 100% of phenol, 36% of formaldehyde, 25% of hydrochloric acid and 95% of ethanol;
the preparation steps of the phenolic resin are as follows:
step 1: pouring the measured phenol and formaldehyde aqueous solution into a reaction kettle, and continuously stirring for 5 minutes to uniformly mix the phenol and formaldehyde aqueous solution;
step 2: adjusting the pH value of the mixture in the reaction kettle to 2.3;
and step 3: introducing water vapor into the reaction kettle, heating to enable the reaction to be carried out, heating to 85 ℃, stopping heating, and starting a condenser after reactants are just boiled;
and 4, step 4: introducing cooling water into the reaction kettle, stirring after 20 minutes, adding hydrochloric acid, and continuing to react to obtain phenolic resin after the reaction is finished;
comparative example 2
The preparation method of the epoxy glass cloth laminated board comprises the steps of glass cloth conveying, gluing, superposing, hot pressing, cutting, cooling and packaging;
the glue solution used for gluing comprises the following components in parts by weight:
the phenolic resin in the glue solution component comprises the following synthetic components in parts by weight:
the purity of each component of the phenolic resin is as follows: 100% of phenol, 36% of formaldehyde, 25% of hydrochloric acid and 95% of ethanol;
the preparation steps of the phenolic resin are as follows:
step 1: pouring the measured phenol and formaldehyde aqueous solution into a reaction kettle, and continuously stirring for 5 minutes to uniformly mix the phenol and formaldehyde aqueous solution;
step 2: adjusting the pH value of the mixture in the reaction kettle to 1.9;
and step 3: introducing water vapor into the reaction kettle, heating to enable the reaction to be carried out, heating to 90 ℃, stopping heating, and opening a condenser after reactants are just boiled;
and 4, step 4: introducing cooling water into the reaction kettle, stirring after 20 minutes, adding hydrochloric acid, and continuing to react to obtain phenolic resin after the reaction is finished;
comparative example 3
The preparation method of the epoxy glass cloth laminated board for the electromagnetic track sequentially comprises the steps of glass cloth conveying, gluing, glass cloth overlapping, first heating, first pressing, cutting, second heating, second pressing, cooling and packaging;
the glue solution used for gluing comprises the following components in parts by weight:
the phenolic resin in the glue solution component comprises the following synthetic components in parts by weight:
the purity of each component of the phenolic resin is as follows: 100% of phenol, 36% of formaldehyde, 25% of hydrochloric acid and 95% of ethanol;
the preparation steps of the phenolic resin are as follows:
step 1: pouring the measured phenol and formaldehyde aqueous solution into a reaction kettle, and continuously stirring for 5 minutes to uniformly mix the phenol and formaldehyde aqueous solution;
step 2: adjusting the pH value of the mixture in the reaction kettle to 2.3;
and step 3: introducing water vapor into the reaction kettle, heating to enable the reaction to be carried out, heating to 85 ℃, stopping heating, and starting a condenser after reactants are just boiled;
and 4, step 4: introducing cooling water into the reaction kettle, stirring after 20 minutes, adding hydrochloric acid, and continuing to react to obtain phenolic resin after the reaction is finished;
comparative example 4
The preparation method of the epoxy glass cloth laminated board for the electromagnetic track sequentially comprises the steps of glass cloth conveying, gluing, glass cloth overlapping, first heating, first pressing, cutting, second heating, second pressing, cooling and packaging;
the glue solution used for gluing comprises the following components in parts by weight:
the phenolic resin in the glue solution component comprises the following synthetic components in parts by weight:
the purity of each component of the phenolic resin is as follows: 100% of phenol, 36% of formaldehyde, 25% of hydrochloric acid and 95% of ethanol;
the preparation steps of the phenolic resin are as follows:
step 1: pouring the measured phenol and formaldehyde aqueous solution into a reaction kettle, and continuously stirring for 5 minutes to uniformly mix the phenol and formaldehyde aqueous solution;
step 2: adjusting the pH value of the mixture in the reaction kettle to 1.9;
and step 3: introducing water vapor into the reaction kettle, heating to enable the reaction to be carried out, heating to 90 ℃, stopping heating, and opening a condenser after reactants are just boiled;
and 4, step 4: introducing cooling water into the reaction kettle, stirring after 20 minutes, adding hydrochloric acid, and continuing to react to obtain phenolic resin after the reaction is finished;
the electrical strength and mechanical strength of the epoxy glass cloth laminates for electromagnetic tracks prepared in examples 1 to 4 and the epoxy glass cloth laminates prepared in comparative examples 1 to 4 were compared as follows:
from the above table it can be seen that: the epoxy glass cloth laminated board produced by the preparation processes of heating twice, respectively matching with pressing twice in examples 1-4, comparative example 3 and comparative example 4 is uniform in thickness, the preparation processes of hot press forming once are respectively adopted in comparative example 1 and comparative example 2, the thickness of the produced epoxy glass cloth laminated board has a certain deviation, the comparative example 3 and comparative example 4 are superior to those of comparative example 1 and comparative example 2 in electrical strength, bending strength, impact strength, breakdown voltage and heat resistance, however, the examples 1-4 are superior to those of comparative example 3 and comparative example 4 in the performance, and therefore the conclusion that the mechanical strength and the electrical strength of the epoxy glass cloth laminated board produced by the examples 1-4 are higher than those of a common laminated board is obtained.
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 (10)
1. A preparation technology of an epoxy glass cloth laminated board for an electromagnetic track is characterized by comprising the following steps: the method comprises the steps of glass cloth conveying, gluing, superposing, first heating, first pressing, cutting, second heating, second pressing, cooling and packaging in sequence;
the glue solution during gluing comprises the following components in parts by weight:
2. the process for preparing an epoxy glass cloth laminated board for an electromagnetic track according to claim 1, wherein the process comprises the following steps: the preparation method of the composite phenolic resin comprises the following steps:
step 1: weighing p-xylene and putting the p-xylene and the p-xylene into a reaction kettle according to needs;
step 2: heating paraxylene filled in a reaction kettle to 88-92 ℃;
and step 3: introducing dry chlorine into the reaction kettle at the speed of 600 ml per minute, starting an ultraviolet lamp for irradiation, and stopping introducing the chlorine after continuously reacting for 10-15 hours;
and 4, step 4: introducing dry air into the reaction kettle, and flushing hydrogen chloride and chlorine in the reaction kettle;
and 5: cooling the reactants in the reaction kettle and filtering;
step 6: washing the filtered reactant with cold water until no acidity exists, and then washing with cold ethanol to obtain dichloro-p-toluene;
and 7: adding phenol into the obtained dichloro-p-toluene, heating to 116-125 ℃, stirring, gradually heating to 140 ℃, keeping for 2 hours, and cooling to obtain a reactant;
and 8: adding phenolic resin into the reactant obtained in the step 7 to obtain composite phenolic resin;
when the composite phenolic resin is prepared, the mass of p-xylene added is 5.1-5.4 times of that of phenol;
and the mass of the phenolic resin added in the step 8 is 3-4 times of that of the reactant.
3. The process for preparing an epoxy glass cloth laminated board for an electromagnetic track according to claim 2, wherein the process comprises the following steps: the phenolic resin in the step 8 comprises the following synthetic components in parts by weight:
the purity of each component of the phenolic resin is as follows: 100% of phenol, 36% of formaldehyde, 25% of hydrochloric acid and 95% of ethanol;
the preparation steps of the phenolic resin are as follows:
step 1: pouring the measured phenol and formaldehyde aqueous solution into a reaction kettle, and continuously stirring for 5 minutes to uniformly mix the phenol and formaldehyde aqueous solution;
step 2: adjusting the pH value of the mixture in the reaction kettle to keep the pH value within the range of 1.9-2.3;
and step 3: introducing water vapor into the reaction kettle, heating to enable the reaction to be carried out, stopping heating when the temperature is 85-90 ℃, and opening a condenser after reactants are just boiled;
and 4, step 4: and (3) introducing cooling water into the reaction kettle, stirring after 20 minutes, adding hydrochloric acid, and continuing to react to obtain the phenolic resin after the reaction is finished.
4. The process for preparing an epoxy glass cloth laminated board for an electromagnetic track according to claim 1, wherein the process comprises the following steps: the preparation device comprises a glass cloth conveying mechanism, a glue coating mechanism, a conveying mechanism, a first heating mechanism, a first pressing mechanism, a cutting mechanism, a second heating mechanism and a second pressing mechanism from left to right in sequence;
the first-time pressing mechanism comprises a pressing mechanism frame (400), a first-time heating mechanism (500) is arranged on the left side of the pressing mechanism frame (400), a pressing cylinder (401) is arranged downwards on the top of the pressing mechanism frame (400), a pressing block (402) is connected to the piston rod end of the pressing cylinder (401), a plurality of telescopic rods (403) are symmetrically arranged on the pressing block (402), the piston end of each telescopic rod (403) is connected to the pressing block (402), the fixed end of each telescopic rod (403) is fixed to the top of the pressing mechanism frame (400), a spring frame (404) is arranged on the periphery of the piston end of the pressing cylinder (401), the spring frame (404) is connected to the pressing mechanism frame (400), a buffer plate (401.1) is fixedly connected to the piston end of the pressing cylinder (401), and the buffer plate (401.1) is located inside the spring frame (404), a plurality of buffer springs (404.1) are connected between the buffer plate (401.1) and the spring frame (404), limiting plates (405) are respectively arranged on the front side and the rear side of the bottom of the pressing block (402), a limiting cylinder (406) is arranged on the outer side of each limiting plate (405), and the limiting cylinder (406) controls the movement of each limiting plate (405);
the first heating mechanism and the second heating mechanism have the same structure, and the first pressing mechanism and the second pressing mechanism have the same structure;
the temperature in the first heating mechanism is 150 ℃, and the pressure of the first pressing mechanism acting on the epoxy glass cloth laminated board is 6-8 Mpa;
the temperature in the second heating mechanism is 155-165 ℃, and the pressure of the second pressing mechanism acting on the epoxy glass cloth laminated board is 10 Mpa.
5. The process for preparing an epoxy glass cloth laminated board for an electromagnetic track according to claim 4, wherein the process comprises the following steps: the glass cloth conveying mechanism comprises a conveying rack (100), a plurality of glass cloth unwinding rollers (101) are arranged in the conveying rack (100), glass cloth conveying rollers (102) are arranged at the output end of each glass cloth unwinding roller (101), and the glass cloth unwinding rollers (101) and the glass cloth conveying rollers (102) are installed on the conveying rack (100).
6. The process for preparing an epoxy glass cloth laminated board for an electromagnetic track according to claim 4, wherein the process comprises the following steps: the glue spreader comprises a glue spreader body (200), composite phenolic resin is arranged in the glue spreader body (200), a plurality of groups of glass cloth conveying rollers (201) are arranged on the glue spreader body (200), a glue solution stirring mechanism (202) is arranged between the two groups of glass cloth conveying rollers (201), the glue solution stirring mechanism (202) can uniformly stir the composite phenolic resin, a glue solution smearing mechanism (203) is arranged on the output side of the glue spreader body (200), a plurality of groups of smearing components (204) are arranged in the glue solution smearing mechanism (203), two rows of relative smearing brushes (205) are arranged on each group of smearing components (204), and the two rows of smearing brushes (205) can smear the glue solution on the glass cloth uniformly.
7. The process for preparing an epoxy glass cloth laminated board for an electromagnetic track according to claim 4, wherein the process comprises the following steps: the conveying mechanism comprises a mechanism frame (301), a plurality of waist round holes are formed in the front side and the rear side of the mechanism frame (301) in a mutually parallel mode, conveying roller mounting frames (302) are arranged in the mechanism frame (301), conveying roller mounting seats (303) are symmetrically arranged on the front side and the rear side of the conveying roller mounting frames (302), a plurality of first conveying rollers (304) are connected to the conveying roller mounting seats (303) in a rotating mode, a plurality of second conveying rollers (305) are correspondingly arranged above the plurality of first conveying rollers (304), positioning plates (306) are connected to the two ends of the center shafts of the plurality of second conveying rollers (305) respectively, adjusting cylinders (307) are connected to the tops of the positioning plates (306), the tops of the positioning plates (306) are matched with the ends of piston rods of the adjusting cylinders (307), the adjusting cylinders (307) are fixed to the tops of the mechanism frame (301), the two ends of the center shafts of the plurality of the second conveying rollers (305) are located in, the plurality of second conveying rollers (305) move up and down along with the expansion and contraction of the piston rod of the air cylinder to adjust the distance between the plurality of second conveying rollers (305);
the right side of first transfer roller (304) is provided with a plurality of third transfer rollers (308), and a plurality of first transfer rollers (304) cooperate through the conveyer belt with a plurality of third transfer rollers (308), all installs driving motor in the epaxial of a plurality of third transfer rollers (308).
8. The process for preparing an epoxy glass cloth laminated board for an electromagnetic track according to claim 7, wherein the process comprises the following steps: the first heating mechanism, the first pressing mechanism, the cutting mechanism, the second heating mechanism and the second pressing mechanism are sequentially arranged between the plurality of first conveying rollers (304) and the plurality of third conveying rollers (308), and the conveying belts between the plurality of first conveying rollers (304) and the plurality of third conveying rollers (308) penetrate through the first heating mechanism, the first pressing mechanism, the cutting mechanism, the second heating mechanism and the second pressing mechanism.
9. The process for preparing an epoxy glass cloth laminated board for an electromagnetic track according to claim 4, wherein the process comprises the following steps: the cutting mechanism comprises a cutting mechanism frame (600), and a hydraulic cutting knife (601) is arranged on the top of the cutting mechanism frame (600) downwards.
10. The process for preparing an epoxy glass cloth laminated board for an electromagnetic track according to claim 7, wherein the process comprises the following steps: the first conveying roller (304), the second conveying roller (305) and the third conveying roller (308) are identical in structure.
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| CN109021438A (en) * | 2018-07-02 | 2018-12-18 | 兴仁县详务新型节能建材有限公司 | The wear-resisting enhancing polymer composite board of one kind and its manufacturing method |
| CN111746070A (en) * | 2020-05-14 | 2020-10-09 | 江阴市沪澄绝缘材料有限公司 | H-grade CTI600 epoxy glass cloth laminated board and production method thereof |
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2020
- 2020-10-22 CN CN202011142213.XA patent/CN112319004A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1176178A (en) * | 1996-02-16 | 1998-03-18 | 株式会社曙通商 | Producing method and apparatus for laminated board |
| CN204525689U (en) * | 2015-03-27 | 2015-08-05 | 广西南宁侨盛木业有限责任公司 | A kind of Novel gluing machine |
| CN205889967U (en) * | 2016-08-11 | 2017-01-18 | 深圳市中科恒润科技发展有限公司 | A push plate device for making phenolic aldehyde cotton layer |
| CN108215426A (en) * | 2017-12-28 | 2018-06-29 | 江阴市沪澄绝缘材料有限公司 | A kind of production line and its production technology of fire resistant epoxy glass cloth laminated board |
| CN109021438A (en) * | 2018-07-02 | 2018-12-18 | 兴仁县详务新型节能建材有限公司 | The wear-resisting enhancing polymer composite board of one kind and its manufacturing method |
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