CN114843050A - Method for rapidly preparing mica tapes in batches - Google Patents
Method for rapidly preparing mica tapes in batches Download PDFInfo
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- CN114843050A CN114843050A CN202210625708.0A CN202210625708A CN114843050A CN 114843050 A CN114843050 A CN 114843050A CN 202210625708 A CN202210625708 A CN 202210625708A CN 114843050 A CN114843050 A CN 114843050A
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- mica
- tapes
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- tape
- adhesive
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B19/00—Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/56—Insulating bodies
- H01B17/60—Composite insulating bodies
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/56—Insulating bodies
- H01B17/66—Joining insulating bodies together, e.g. by bonding
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
- H01B3/04—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances mica
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
- H01B3/08—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances quartz; glass; glass wool; slag wool; vitreous enamels
- H01B3/084—Glass or glass wool in binder
Abstract
The invention relates to a method for rapidly preparing mica tapes in batches, which comprises the steps of S1, placing mica paper on a table board, and sticking a plurality of reinforcing tapes on the mica paper side by side; s2, cutting the mica paper to form a plurality of strips of mica paper for later use; s3, cutting the glass fiber cloth for later use; s4, combining the glass fiber cloth with the first adhesive, and uniformly permeating; s5, horizontally placing the strip mica paper in the step S2 on one side of the glass fiber cloth, and uniformly permeating; s6, combining the mica paper with a second adhesive, and uniformly permeating to form a semi-finished mica tape; and S7, carrying out irradiation operation on the semi-finished product of the mica tape to obtain a finished product of the mica tape. When the method is adopted to process the mica tape, the mica paper can be ensured to have certain strength, the risk of damage of the mica paper in the processing process is reduced, the production cost is reduced, and a qualified test product can be manufactured in a laboratory, the accuracy of test data is ensured, and the reliability of the test is improved.
Description
Technical Field
The invention relates to a manufacturing technology of mica tapes, in particular to a method for quickly preparing mica tapes in batches in a laboratory.
Background
The mica tape is an insulating material with excellent high-temperature resistance and combustion resistance, which is prepared by mixing reinforcing materials such as mica paper, glass fiber cloth and the like with a proper amount of adhesive, drying at high temperature and then cutting. The mica tape has good flexibility and high temperature resistance, so the mica tape is widely applied to fire-resistant insulating layers of various fire-resistant electromagnetic cables and coils. The mainstream method for producing mica tapes at present is to dilute an adhesive by using a large amount of toluene solvent, then impregnate a reinforcing material to enable the reinforcing material to be compounded with mica paper, then bake the compounded material to remove the solvent, and roll and cut the obtained material to obtain the mica tape.
Because the strength of the mica paper is very low, the mica paper can be cracked due to stress in any direction, the existing mica tape manufacturing process is innovated in a production line, a huge amount of material cost, labor cost and equipment cost are required to be invested, and a product for testing is difficult to prepare in small-batch production (such as an experiment room). On the other hand, the existing mica tape is mainly diluted by a toluene solvent, so that huge potential safety hazards and cost overhead exist, and the urgent need for the innovation of the existing manufacturing process exists, so that the technical innovation of the manufacturing process of the existing mica tape is widely paid attention to by people. How to repeatedly and batch manufacture samples for performance test in a laboratory becomes the first problem of successful technological innovation.
Disclosure of Invention
The invention aims to solve the technical problem of providing a method for quickly preparing mica tapes in batches, which reduces the damage to mica paper and reduces the test cost in the process of manufacturing the mica tapes.
The technical scheme adopted by the invention for solving the technical problems is as follows: a method for rapidly preparing mica tapes in batches comprises the following steps,
s1, placing a large piece of mica paper on a clean table board, and sticking a plurality of reinforcing tapes on the mica paper side by side according to a set distance;
s2, cutting the reinforcing tape along the sticking direction of the reinforcing tape to form a plurality of strips of mica paper with the reinforcing tapes on two sides and mica paper in the middle for later use;
s3, cutting the glass fiber cloth as required for standby;
s4, combining the glass fiber cloth with the first adhesive, and uniformly penetrating;
s5, taking out the permeated glass fiber cloth, and flatly placing the strip mica paper in the step S2 on one surface of the glass fiber cloth for uniform permeation;
s6, combining one surface of the mica paper, which is far away from the glass fiber cloth, with a second adhesive, and uniformly permeating to form a mica tape semi-finished product;
and S7, carrying out irradiation operation on the semi-finished product of the mica tape to obtain a finished product of the mica tape.
More specifically, the reinforcing belt is a paper adhesive tape, and the width of the paper adhesive tape is 0.5-4 cm.
More specifically, the position to be cut in step S2 is the center position in the width direction of the reinforcing strip.
More specifically, the time for uniform permeation in the steps S4, S5, S6 is controlled to be 10-50S.
More specifically, the time for uniform permeation in the steps S4, S5, and S6 is controlled to 30S.
More specifically, the first adhesive comprises the following components in parts by weight,
more specifically, the second adhesive comprises the following components in percentage by mass,
more specifically, the irradiation operation in the step S7 employs one of electron beam curing, ultraviolet curing, and thermal curing.
More specifically, the reinforcing belts are arranged in parallel.
More specifically, after the step S7, the reinforcing tapes on both sides of the finished mica tape are cut off.
The invention has the beneficial effects that: when the method is adopted to process the mica tape, the mica paper can be ensured to have certain strength, the risk of damage of the mica paper in the processing process is reduced, the production cost can be reduced in actual production, and a qualified test product can be manufactured in a laboratory, so that the accuracy of test data is further ensured, and the reliability of a test is improved.
Drawings
FIG. 1 is a flow chart of the method for rapid mass production of mica tapes according to the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.
As shown in fig. 1, a method for rapidly preparing mica tapes in batches includes the steps of,
s1, placing a large piece of mica paper on a clean table top, wherein the table top is clean and dustless to prevent the mica paper from being polluted, and sticking a plurality of reinforcing tapes on the mica paper side by side according to a set distance; the width of the reinforcing band can be selected from 0.5-4cm, the reinforcing band can be operated according to specific working conditions, meanwhile, the reinforcing band can be a product with glue such as a paper adhesive tape and a PVC adhesive tape, and can also be adhered by coating glue on strip-shaped paper; according to actual demand, the reinforcing bands can be arranged in parallel, and the distance between the two reinforcing bands can be set according to the demand.
S2, cutting the reinforcing tape along the sticking direction of the reinforcing tape to form a plurality of strips of mica paper with the reinforcing tapes on two sides and mica paper in the middle for later use; the cutting position can be at any position in the width direction of the reinforcing belt, and the main purpose is to ensure that the mica paper in the middle has certain strength and cannot be easily broken through the reinforcing belts on the two sides; in the scheme, the position of the reinforcing belt is selected as the middle position of the width direction of the reinforcing belt, one reinforcing belt is cut into two reinforcing belts, and the widths of the two reinforcing belts are equal or slightly different.
S3, taking out the glass fiber cloth which is a substrate for bearing the mica paper; and cutting the glass fiber cloth according to the size of the cut reinforcing band.
S4, combining the cut glass fiber cloth with a first adhesive, wherein the combination mode can be an immersion type or a coating type, and carrying out uniform permeation for 10-50S, preferably 20S, 30S or 40S; the time for controlling uniform penetration is slightly shorter (10-20s) when the immersion type is selected, and the time for controlling uniform penetration is slightly longer (40-50s) when the coating type is selected.
S5, taking out the permeated glass fiber cloth, horizontally placing the strip mica paper in the step S2 on one side of the glass fiber cloth, and uniformly permeating for 10-50S, preferably 20S or 30S.
And S6, combining one side of the mica paper, which is far away from the glass fiber cloth, with a second adhesive, wherein the combination mode is a coating mode, and the mica paper is uniformly permeated for 10-50S, preferably 30S or 40S, so as to form a mica tape semi-finished product.
S7, carrying out irradiation operation on the semi-finished product of the mica tape to obtain a finished product of the mica tape; wherein the irradiation operation can be performed in various manners, such as electron beam curing (EB), ultraviolet curing (UV), thermal curing, and the like.
After the mica tape is formed by the method, the reinforcing tapes on two sides of the mica tape can be cut off in a slitting mode.
In the method, the first adhesive and the second adhesive can be the same or different adhesives; when different adhesives are used, the adhesive can be used,
the first adhesive comprises the following components in parts by weight,
the second adhesive comprises the following components in percentage by mass,
when a fire-resistant cable is manufactured, the main functions of the silicon-containing substances such as vinyl silicone oil and fumed silica are that the fire-resistant cable can pass an electric resistance test after being burnt, namely the fire-resistant cable needs to be burnt under the condition of being electrified, the carbon content in ash after being burnt is ensured to be as low as possible, and the short circuit risk can occur when the carbon content is too high; meanwhile, the cost of the vinyl silicone oil and the fumed silica is higher than that of other organic matters, so that the vinyl silicone oil and the fumed silica in the first adhesive are relatively reduced, and the cost can be reduced.
Meanwhile, the viscosity of the first adhesive is 1000-.
When the content of the vinyl silicone oil and the fumed silica in the first adhesive is not 0, the adhesive used in the steps S4 and S6 may be selected from the above formulations.
Based on the method, the mica tape with low cost and good test effect can be obtained, and the preparation in a laboratory is described below.
Firstly, on a clean glass sheet, a large piece of mica paper is flatly placed on the glass sheet, a paper adhesive tape with the width of 2cm is taken, the paper adhesive tape is lightly adhered to one surface of the mica paper and is firmly adhered, 5 strips of the paper adhesive tape are adhered and are parallel to each other, and the distance between the adjacent paper adhesive tapes is ensured to be the same.
Secondly, cutting the middle of the paper tape by a cutter according to the length direction of the paper tape to form 6 pieces of mica paper, and taking 4 pieces of strip mica paper with the paper tapes on two sides in the middle for later use;
thirdly, taking the glass fiber cloth and cutting the glass fiber cloth into strips as required for later use;
fourthly, dripping 10g of first adhesive on a clean glass sheet, and paving the first adhesive by using a 20-micron wire rod;
fifthly, placing the strip-shaped glass fiber cloth on the first adhesive, and uniformly permeating for 30 seconds;
sixthly, flatly placing the strip mica paper on glass fiber cloth, and uniformly permeating for 30 seconds again for later use;
seventhly, dripping 10g of second adhesive on a clean glass sheet, and paving the second adhesive by using a 50-micrometer wire rod;
eighthly, taking out the glass fiber cloth and the mica paper together in the sixth step, and horizontally placing one surface of the mica paper towards the second adhesive, and uniformly permeating for 30s to form a mica tape semi-finished product;
and ninthly, irradiating the semi-finished product of the mica tape by adopting EB irradiation equipment, wherein the energy of an irradiation electron beam is 100-400kev, and the irradiation dose is 40-80kGy, so as to obtain the finished product of the mica tape.
Example 1
According to the laboratory manufacturing method, the first adhesive and the second adhesive adopt the same adhesive, and the formula of the adhesive is as follows:
and obtaining a corresponding mica tape finished product, and testing the finished product to obtain a corresponding technical effect of the mica tape.
Example 2
According to the laboratory manufacturing method, the first adhesive and the second adhesive are different adhesives, wherein the formula of the first adhesive is as follows:
the formula of the second adhesive is that,
and obtaining a corresponding mica tape finished product, and testing the finished product to obtain a corresponding technical effect of the mica tape.
Example 3
According to the laboratory manufacturing method, the first adhesive and the second adhesive are different adhesives, wherein the formula of the first adhesive is as follows:
the formula of the second adhesive is that,
and obtaining a corresponding mica tape finished product, and testing the finished product to obtain a corresponding technical effect of the mica tape.
Comparative example 1
According to the experimental mode, a paper tape is not used, the first adhesive and the second adhesive are the same adhesive, and the formula of the adhesive is as follows:
and obtaining a corresponding mica tape finished product, and testing the finished product to obtain a corresponding technical effect of the mica tape.
Comparative example 2
According to the experimental mode, the paper tape is used, the first adhesive and the second adhesive are different adhesives, and the formula of the first adhesive is as follows:
the formula of the second adhesive is that,
and obtaining a corresponding mica tape finished product, and testing the mica tape finished product to obtain a corresponding technical effect of the mica tape, wherein the result proves that silica gel substances must exist in the second adhesive.
Comparative example 3
And (3) purchasing a finished mica tape product from the market, and testing the finished mica tape product to obtain the corresponding technical effect of the mica tape.
The technical effects obtained according to the above examples 1, 2, 3 and comparative examples 1, 2, 3 form the following table.
As can be seen from the above table, examples 1, 2 and 3 are substantially identical to the commercially available product performance, and the performance is greatly increased compared to comparative example 1 and comparative example 2.
In conclusion, the method can provide a simple and convenient preparation method for developing mica tapes in a laboratory, and meanwhile, the performance of the mica tape is consistent with that of a normal product, so that the time for developing the mica tapes in the laboratory is greatly shortened; in addition, the enterprise carries out batch rapid preparation in a laboratory, and can carry out rapid and effective quality control on the quality of raw materials on a production line.
It is to be emphasized that: the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and all simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (10)
1. A method for rapidly preparing mica tapes in batches is characterized in that the method comprises the following steps,
s1, placing a large piece of mica paper on a clean table board, and sticking a plurality of reinforcing tapes on the mica paper side by side according to a set distance;
s2, cutting the reinforcing tape along the sticking direction of the reinforcing tape to form a plurality of strips of mica paper with the reinforcing tapes on two sides and mica paper in the middle for later use;
s3, cutting the glass fiber cloth as required for standby;
s4, combining the glass fiber cloth with the first adhesive, and uniformly penetrating;
s5, taking out the permeated glass fiber cloth, and flatly placing the strip mica paper in the step S2 on one surface of the glass fiber cloth for uniform permeation;
s6, combining one surface of the mica paper, which is far away from the glass fiber cloth, with a second adhesive, and uniformly permeating to form a mica tape semi-finished product;
and S7, carrying out irradiation operation on the semi-finished product of the mica tape to obtain a finished product of the mica tape.
2. The method for rapidly mass-producing mica tapes according to claim 1, wherein the reinforcing tapes are paper tapes, and the width of the paper tapes is 0.5-4 cm.
3. The method for rapid mass production of mica tapes as set forth in claim 2, wherein the position of the slit in step S2 is a central position in the width direction of the reinforcing tape.
4. The method for rapid mass production of mica tapes as set forth in claim 1, wherein the time for uniform impregnation in the steps S4, S5, S6 is controlled to 10-50S.
5. The method for rapid mass production of mica tapes as set forth in claim 4, wherein the time for uniform impregnation in the steps S4, S5, S6 is controlled to 30S.
6. The method for rapidly preparing mica tapes in batches as set forth in claim 1, wherein the first adhesive comprises the following components in parts by mass,
7. the method for rapidly preparing mica tapes in batches as set forth in claim 1, wherein the second adhesive comprises the following components in percentage by mass,
8. the method for rapid mass production of mica tapes as recited in claim 1, wherein the irradiating operation in the step S7 employs one of electron beam curing, ultraviolet curing and thermal curing.
9. The method for rapid mass production of mica tapes as recited in claim 1, wherein the reinforcing tapes are arranged in parallel.
10. The method for rapidly mass-producing mica tapes according to claim 1, wherein the reinforcing tapes on both sides of the finished mica tape are cut off after the step S7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210625708.0A CN114843050A (en) | 2022-06-02 | 2022-06-02 | Method for rapidly preparing mica tapes in batches |
| PCT/CN2023/092317 WO2023231695A1 (en) | 2022-06-02 | 2023-05-05 | Method for rapid batch preparation of mica tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210625708.0A CN114843050A (en) | 2022-06-02 | 2022-06-02 | Method for rapidly preparing mica tapes in batches |
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| CN114843050A true CN114843050A (en) | 2022-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210625708.0A Pending CN114843050A (en) | 2022-06-02 | 2022-06-02 | Method for rapidly preparing mica tapes in batches |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023231695A1 (en) * | 2022-06-02 | 2023-12-07 | 中广核达胜加速器技术有限公司 | Method for rapid batch preparation of mica tape |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK2047985T3 (en) * | 2007-10-10 | 2014-01-06 | Duo Plast Ag | Foils with reinforced edges and edges |
| CN104531041B (en) * | 2014-12-05 | 2017-05-10 | 烟台泰盛精化科技有限公司 | Polyether-type urethane acrylate UV-cured adhesive and preparation method thereof |
| CN110387210B (en) * | 2019-07-31 | 2021-10-19 | 中广核达胜加速器技术有限公司 | EB (Epstein-Barr) curing-based adhesive and preparation method of mica tape with same |
| CN113470906A (en) * | 2021-05-24 | 2021-10-01 | 中广核新奇特(扬州)电气有限公司 | Production process of electron beam curing mica tape |
| CN114496349B (en) * | 2022-02-09 | 2023-09-26 | 浙江荣泰电工器材股份有限公司 | Ultra-long high-temperature-resistant mica tape and preparation method thereof |
| CN114843050A (en) * | 2022-06-02 | 2022-08-02 | 中广核达胜加速器技术有限公司 | Method for rapidly preparing mica tapes in batches |
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2022
- 2022-06-02 CN CN202210625708.0A patent/CN114843050A/en active Pending
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2023
- 2023-05-05 WO PCT/CN2023/092317 patent/WO2023231695A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023231695A1 (en) * | 2022-06-02 | 2023-12-07 | 中广核达胜加速器技术有限公司 | Method for rapid batch preparation of mica tape |
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| WO2023231695A1 (en) | 2023-12-07 |
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