CN113539642A - Glass fiber reinforced plastic type sleeve core body wrapping method - Google Patents
Glass fiber reinforced plastic type sleeve core body wrapping method Download PDFInfo
- Publication number
- CN113539642A CN113539642A CN202010327781.0A CN202010327781A CN113539642A CN 113539642 A CN113539642 A CN 113539642A CN 202010327781 A CN202010327781 A CN 202010327781A CN 113539642 A CN113539642 A CN 113539642A
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- CN
- China
- Prior art keywords
- glass fiber
- copper pipe
- winding
- reinforced plastic
- fiber reinforced
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
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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
- H01B17/58—Tubes, sleeves, beads, or bobbins through which the conductor passes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention discloses a method for wrapping a core body of a glass fiber reinforced plastic type sleeve, which comprises the following steps of 1: fixing the two ends of the copper pipe after pretreatment on a winding machine, and completely exposing the outer wall of the copper pipe without shielding; step 2: and uniformly winding the glass fiber yarns soaked with the resin on the outer wall of the copper pipe at a certain angle with the axis of the copper pipe so as to form an insulating layer on the outer wall of the copper pipe. Has the advantages that: according to the invention, the core copper pipe is preheated, and the glass fiber yarns and the glass fiber belts are dip-coated with resin, so that the core can be quickly bonded and cured when being wrapped, the wrapping speed of the glass fiber reinforced plastic type sleeve core is greatly improved, and the production benefits of enterprises are increased.
Description
Technical Field
The invention relates to the technical field of production of glass fiber reinforced plastic dry-type transformer sleeves, and relates to a wrapping method of a glass fiber reinforced plastic type sleeve core body.
Background
The glass fiber reinforced plastic dry-type transformer sleeve comprises a gas impregnated sleeve, an oil impregnated paper sleeve, an adhesive impregnated fiber sleeve and the like. The glue-impregnated fiber is made of resin-impregnated fiber rolls for main insulation. Fiberglass Reinforced Plastics (FRP), also known as GRP, is a fiber reinforced plastic that generally refers to a matrix of unsaturated polyester, epoxy, and phenolic resins reinforced with glass fibers. The reinforced plastic using glass fiber or its product as reinforcing material is called glass fiber reinforced plastic or glass fiber reinforced plastic. Because of the different types of resins, the resins are called polyester glass fiber reinforced plastics, epoxy glass fiber reinforced plastics and phenolic aldehyde glass fiber reinforced plastics. Light weight, hardness, non-conductivity, high mechanical strength, less recovery and corrosion resistance. The glass fiber reinforced plastic sleeve is a novel sleeve produced by using glass fiber reinforced plastic as a raw material. Wherein, when the glass fiber reinforced plastic type transformer bushing is produced, the core body is required to be covered with wires firstly.
However, when the core body of the existing glass fiber reinforced plastic bushing is used for covering wires, the covering wire and the curing process are separately performed, so that the covering wire speed of the glass fiber reinforced plastic bushing is low, and the production benefit of an enterprise is reduced.
Disclosure of Invention
The invention aims to solve the problems and provide a method for wrapping a core of a glass fiber reinforced plastic type sleeve.
The invention realizes the purpose through the following technical scheme:
the method for wrapping the core body of the glass fiber reinforced plastic type sleeve comprises the following steps:
step 1: fixing the two ends of the copper pipe after pretreatment on a winding machine, and completely exposing the outer wall of the copper pipe without shielding so as to ensure that the outer wall of the copper pipe can be completely wound and the integral winding quality of the core body is ensured;
step 2: uniformly winding the glass fiber yarns soaked with the resin on the outer wall of the copper pipe in the step (1) in a certain angle with the axis of the copper pipe, so that the glass fiber yarns can be quickly cured, and an insulating layer can be formed on the outer wall of the copper pipe, so that the primary insulation of the core body can be ensured;
and step 3: after the glass fiber yarns are wound, a layer of semiconductor tape can be uniformly wound on the outer sides of the glass fiber yarns, so that a shielding layer is formed on the outer side of the copper pipe, and the compression resistance of the core body can be improved;
and 4, step 4: the winding modes in the step 2 and the step 3 are sequentially repeated until the overall thickness of the insulating layer and the shielding layer reaches the specified thickness, so that the thickness of the glass fiber with the shielding layer outside the core body can be ensured to obtain the design requirement, and the normal practical performance of the core body is further ensured;
and 5: and (4) leading out the tap on the outer side of the copper pipe wound in the step (4), continuously winding the glass fiber tape impregnated with the resin on the outer side of the copper pipe until the copper pipe reaches the specified thickness, finishing the winding of the core body, and winding the glass fiber again to further enhance the insulating property of the core body and improve the use safety of the core body.
Further, the pretreatment mode in step 1 is as follows: firstly, sundries on the outer wall of the copper pipe are removed in advance on a grinding machine, the outer side of the copper pipe is cleaned to avoid influencing the normal use performance of the copper pipe due to the existence of the impurities, then the copper pipe is heated to 40-50 ℃, so that the glass fiber yarns and the semiconductors are quickly cured after being wound, the winding speed of the whole core body is increased, and the pretreatment of the copper pipe can be completed.
Furthermore, the winding angle of the glass fiber yarns in the step 2 and the winding angle of the half conduction band in the step 3 are both 45 degrees, so that the core body can be ensured to have good axial and radial performances after being wound, the practical requirement of the core body for multiple conditions is met, and the use flexibility of the core body is improved.
Furthermore, the winding speed of the winding machine is 40-50r/min, so that the core can be uniformly and sufficiently wound, and the winding quality of the core is ensured.
The invention has the beneficial effects that:
1. according to the invention, the core copper tube is preheated, and the glass fiber yarns and the glass fiber belts are dip-coated with resin, so that the core can be quickly bonded and cured during wrapping, the wrapping speed of the glass fiber reinforced plastic type sleeve core is greatly improved, and the production benefit of an enterprise is increased;
2. according to the invention, the glass fiber yarns, the semiconductor tapes and the glass fiber tapes are wound at an angle of 45 degrees with the axis of the copper pipe, so that the core body has good axial and radial properties after being wound, the core body meets the use requirements of various occasions, and the flexibility of subsequent use of the glass fiber reinforced plastic type sleeve core body is greatly improved.
Detailed Description
The method for wrapping the core body of the glass fiber reinforced plastic type sleeve comprises the following steps:
step 1: fixing the two ends of the copper pipe after pretreatment on a winding machine, and completely exposing the outer wall of the copper pipe without shielding so as to ensure that the outer wall of the copper pipe can be completely wound and the integral winding quality of the core body is ensured;
step 2: uniformly winding the glass fiber yarns soaked with the resin on the outer wall of the copper pipe in the step (1) in a certain angle with the axis of the copper pipe, so that the glass fiber yarns can be quickly cured, and an insulating layer can be formed on the outer wall of the copper pipe, so that the primary insulation of the core body can be ensured;
and step 3: after the glass fiber yarns are wound, a layer of semiconductor tape can be uniformly wound on the outer sides of the glass fiber yarns, so that a shielding layer is formed on the outer side of the copper pipe, and the compression resistance of the core body can be improved;
and 4, step 4: the winding modes in the step 2 and the step 3 are sequentially repeated until the overall thickness of the insulating layer and the shielding layer reaches the specified thickness, so that the thickness of the glass fiber with the shielding layer outside the core body can be ensured to obtain the design requirement, and the normal practical performance of the core body is further ensured;
and 5: and (4) leading out the tap on the outer side of the copper pipe wound in the step (4), continuously winding the glass fiber tape impregnated with the resin on the outer side of the copper pipe until the copper pipe reaches the specified thickness, finishing the winding of the core body, and winding the glass fiber again to further enhance the insulating property of the core body and improve the use safety of the core body.
In this embodiment, the preprocessing manner in step 1 is as follows: firstly, sundries on the outer wall of the copper pipe are removed in advance on a grinding machine, the outer side of the copper pipe is cleaned to avoid influencing the normal use performance of the copper pipe due to the existence of the impurities, then the copper pipe is heated to 40-50 ℃, so that the glass fiber yarns and the semiconductors are quickly cured after being wound, the winding speed of the whole core body is increased, and the pretreatment of the copper pipe can be completed.
In this embodiment, the winding angle of the glass fiber filaments in step 2 and the winding angle of the half conduction band in step 3 are both 45 degrees, which can ensure that the core has good axial and radial performance after winding, so that the core meets the practical requirements of various situations, and the flexibility of the core in use is improved.
In the embodiment, the winding speed of the winding machine is 40-50r/min, so that the core body can be uniformly and sufficiently wound, and the winding quality of the core body is ensured.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. The wrapping method of the glass fiber reinforced plastic type sleeve core body is characterized in that: it comprises the following steps:
step 1: fixing the two ends of the copper pipe after pretreatment on a winding machine, and completely exposing the outer wall of the copper pipe without shielding;
step 2: uniformly winding the glass fiber yarns soaked with the resin on the outer wall of the copper pipe in the step (1) in a certain angle with the axis of the copper pipe so as to form an insulating layer on the outer wall of the copper pipe;
and step 3: after the glass fiber yarn is wound, uniformly winding a layer of semiconductor tape on the outer side of the glass fiber yarn so as to form a shielding layer on the outer side of the copper pipe;
and 4, step 4: sequentially repeating the winding modes in the step 2 and the step 3 until the overall thickness of the insulating layer and the shielding layer reaches a specified thickness;
and 5: and (4) leading out the tap on the outer side of the wound copper pipe in the step (4), and continuously winding the glass fiber tape impregnated with resin on the outer side of the copper pipe until the specified thickness is reached, thus finishing the wrapping of the core body.
2. The method of claim 1, wherein the step of wrapping the core of the glass fiber reinforced plastic bushing comprises: the pretreatment mode in the step 1 is as follows: firstly, removing sundries on the outer wall of the copper pipe on a grinding machine in advance, wiping the outer side of the copper pipe clean, and then heating the copper pipe to 40-50 ℃ to finish the pretreatment of the copper pipe.
3. The method of claim 1, wherein the step of wrapping the core of the glass fiber reinforced plastic bushing comprises: the winding angle of the glass fiber filaments in the step 2 and the winding angle of the semi-conductive tape in the step 3 are both 45 degrees.
4. The method of claim 1, wherein the step of wrapping the core of the glass fiber reinforced plastic bushing comprises: the winding speed of the winding machine is 40-50 r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010327781.0A CN113539642A (en) | 2020-04-20 | 2020-04-20 | Glass fiber reinforced plastic type sleeve core body wrapping method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010327781.0A CN113539642A (en) | 2020-04-20 | 2020-04-20 | Glass fiber reinforced plastic type sleeve core body wrapping method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113539642A true CN113539642A (en) | 2021-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010327781.0A Pending CN113539642A (en) | 2020-04-20 | 2020-04-20 | Glass fiber reinforced plastic type sleeve core body wrapping method |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105590706A (en) * | 2016-02-01 | 2016-05-18 | 大连耐道电器有限公司 | Production technology method of glass fiber reinforced plastic capacitance transformer bushing |
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2020
- 2020-04-20 CN CN202010327781.0A patent/CN113539642A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105590706A (en) * | 2016-02-01 | 2016-05-18 | 大连耐道电器有限公司 | Production technology method of glass fiber reinforced plastic capacitance transformer bushing |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211022 |
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| RJ01 | Rejection of invention patent application after publication |