CN112063270A - Enameled wire insulation impregnating varnish and preparation method and application thereof - Google Patents
Enameled wire insulation impregnating varnish and preparation method and application thereof Download PDFInfo
- Publication number
- CN112063270A CN112063270A CN202011013224.8A CN202011013224A CN112063270A CN 112063270 A CN112063270 A CN 112063270A CN 202011013224 A CN202011013224 A CN 202011013224A CN 112063270 A CN112063270 A CN 112063270A
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- CN
- China
- Prior art keywords
- component
- wire
- impregnating varnish
- enameled wire
- diluent
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Classifications
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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
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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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
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- 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
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/308—Wires with resins
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Manufacture Of Motors, Generators (AREA)
- Organic Insulating Materials (AREA)
Abstract
The invention discloses an enameled wire insulating impregnating varnish and a preparation method and application thereof, wherein the enameled wire insulating impregnating varnish comprises a component A and a component B, and the weight ratio of the component A to the component B is 1: 0.32-1: 0.35; the component A is prepared from the following raw materials in parts by weight: 98 parts of epoxy resin, 1 part of defoaming agent and 1 part of flatting agent; the component B is a curing agent. The enameled wire insulating impregnating varnish provided by the invention has excellent insulativity, heat resistance, freezing resistance and chemical corrosion resistance; the enameled wire insulating impregnating varnish is applied to a magnetizing clamp coil, and the coating is complete and does not fall off after long-time use.
Description
Technical Field
The invention belongs to the technical field of wire enamel, and particularly relates to an insulated impregnating varnish for an enameled wire, and a preparation method and application thereof.
Background
The insulating enamel paint for enameled wire has the effect of generating a good insulating layer between the wires in the winding to prevent the current from flowing, and the insulating layer can keep the original performance under the conditions of long-time moisture, heat, mechanical action, chemical attack and the like.
The varieties of the wire enamel comprise oil-based wire enamel, polyurethane wire enamel, polyester wire enamel, epoxy wire enamel and the like, but the existing wire enamel has complex component structure, complex preparation process, poor performance and large application limitation. The magnetizing fixture coil for magnetizing magnetic material is generally coated with PPG electrophoretic paint, but in practical application, the electrophoretic coating has poor insulation, poor adhesion and poor flexibility, and after repeated winding and electrification magnetizing of the electric wire in practical use, the coating on the copper wire falls off.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide the enameled wire insulating impregnating varnish, and the preparation method and application thereof, aiming at the defects of the prior art, wherein the enameled wire insulating impregnating varnish has excellent insulativity, heat resistance and freezing resistance, and is suitable for occasions such as magnetizing clamp coils.
The technical scheme is as follows: the enameled wire insulation impregnating varnish comprises a component A and a component B, wherein the weight ratio of the component A to the component B is 1: 0.32-1: 0.35; the component A is prepared from the following raw materials in parts by weight: 98 parts of epoxy resin, 1 part of defoaming agent and 1 part of flatting agent; the component B is a curing agent.
Further perfecting the technical scheme, the curing agent is polyamide.
Further, the weight ratio of the component A to the component B is 1: 0.33.
Further, a diluent is also included.
Further, after the diluent is added, a paint-4 cup is adopted to carry out a viscosity test on the insulated wire impregnating varnish for the enameled wire, and the viscosity test reaches 150 seconds at 25 ℃.
Further, the diluent is xylene and isobutanol which are prepared according to the weight ratio of 7: 3.
The preparation method of the enameled wire insulation impregnating varnish comprises the following steps:
(1) mixing the component A and the component B according to the weight ratio of 1:0.33, and the component A is prepared from the following raw materials in parts by weight: 98 parts of epoxy resin, 1 part of defoaming agent and 1 part of flatting agent, wherein the component B is a curing agent;
(2) adding a diluent, and uniformly stirring to obtain the enameled wire insulating impregnating varnish;
(3) and (3) adopting a coating-4 cup to carry out viscosity on the enameled wire insulation impregnating varnish obtained in the step (2) until the viscosity reaches 150 seconds at 25 ℃, otherwise, repeating the step (2).
The invention also provides the application of the enameled wire insulating impregnating varnish in the magnetizing clamp coil.
The application of the enameled wire insulating impregnating varnish in the magnetizing clamp coil comprises the following steps: and (3) soaking the copper wire of the magnetizing clamp coil in enameled wire insulating impregnating varnish, vertically hanging the soaked copper wire, air-drying for 24 hours, and then sending the copper wire into an oven for drying at 150 ℃ for 30min for use.
Has the advantages that: compared with the prior art, the invention has the advantages that: the enameled wire insulation impregnating varnish provided by the invention has excellent insulativity, heat resistance, freezing resistance, chemical corrosion resistance, and excellent adhesion and flexibility. The invention can finish the preparation of the enameled wire insulating impregnating varnish at normal temperature and normal pressure by adopting the existing general equipment, and has simple components and simple and easy operation of the preparation process. The enameled wire insulating impregnating varnish is applied to the magnetizing fixture coil, after the electric wire of the magnetizing fixture coil is repeatedly wound, folded and electrified and magnetized, the coating is complete and does not fall off, the electrification and magnetization are carried out for months, the insulating property of the copper wire is good, and the market scene is very large.
Detailed Description
The technical solution of the present invention is described in detail below, but the scope of the present invention is not limited to the embodiments.
Example 1: the invention provides enameled wire insulation impregnating varnish, which comprises: component A, component B and a diluent.
The component A comprises:
NPES-619A epoxy resin, the addition of which is 0.98kg, the manufacturer is south Asia (Kunshan) resin factory, the specification is industrial grade, 50% xylene solution;
BYK-054 defoamer, the addition amount is 0.01kg, and the manufacturer is German Bike;
BYK-306 leveling agent, the addition amount is 0.01kg, and the manufacturer is German Bike.
The component B is polyamide 650 with the addition of 0.33kg, and the manufacturer is Changzhou Ming Yao chemical new material company Limited.
The diluent is prepared from dimethylbenzene and isobutanol according to the weight ratio of 7: 3.
Mixing the component A and the component B according to the weight ratio of 1:0.33, adding a proper amount of diluent, and uniformly stirring; and measuring the viscosity by using a coating-4 cup, and if the viscosity is still higher, adding a proper amount of diluent until the viscosity reaches about 150 seconds/coating-4 cup/25 ℃, thus obtaining the enameled wire insulating impregnating varnish.
Applying the prepared enameled wire insulating impregnating varnish to a magnetizing clamp coil: and (3) soaking the copper wire of the magnetizing clamp coil in enameled wire insulating impregnating varnish, vertically hanging the soaked copper wire, air-drying for 24 hours, and then sending the copper wire into an oven at 150 ℃ for 30min for drying.
The enameled wire insulated impregnating varnish coated copper wire prepared by the method is practically used in a magnetizing workshop, and after the wire is repeatedly wound, folded and electrified and magnetized, the coating is complete and does not fall off, and the copper wire is electrified and magnetized for months and has good insulation property.
As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited thereto. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. The utility model provides an enameled wire insulation impregnating varnish which characterized in that: the adhesive comprises a component A and a component B, wherein the weight ratio of the component A to the component B is 1: 0.32-1: 0.35; the component A is prepared from the following raw materials in parts by weight: 98 parts of epoxy resin, 1 part of defoaming agent and 1 part of flatting agent; the component B is a curing agent.
2. The wire enamel according to claim 1, wherein: the curing agent is polyamide.
3. The wire enamel according to claim 1, wherein: the weight ratio of the component A to the component B is 1: 0.33.
4. The wire enamel according to claim 1, wherein: also includes a diluent.
5. The wire enamel according to claim 4, wherein: after the diluent is added, the enameled wire insulation impregnating varnish is subjected to viscosity test by adopting a coating-4 cup for 150 seconds at 25 ℃.
6. The wire enamel according to claim 4, wherein: the diluent is prepared from dimethylbenzene and isobutanol according to the weight ratio of 7: 3.
7. A preparation method of enameled wire insulation impregnating varnish is characterized by comprising the following steps:
(1) mixing the component A and the component B according to the weight ratio of 1:0.33, and the component A is prepared from the following raw materials in parts by weight: 98 parts of epoxy resin, 1 part of defoaming agent and 1 part of flatting agent, wherein the component B is a curing agent;
(2) adding a diluent, and uniformly stirring to obtain the enameled wire insulating impregnating varnish;
(3) and (3) adopting a coating-4 cup to carry out viscosity on the enameled wire insulation impregnating varnish obtained in the step (2) until the viscosity reaches 150 seconds at 25 ℃, otherwise, repeating the step (2).
8. The use of the wire enamel for insulation and impregnation according to any of claims 1 to 6 in magnetizing jig coils.
9. The use of the wire enamel for the insulation and impregnation of enamel wires according to claim 8, wherein: the method comprises the following steps: and (3) soaking the copper wire of the magnetizing clamp coil in enameled wire insulating impregnating varnish, vertically hanging the soaked copper wire, air-drying for 24 hours, and then sending the copper wire into an oven for drying at 150 ℃ for 30min for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011013224.8A CN112063270A (en) | 2020-09-23 | 2020-09-23 | Enameled wire insulation impregnating varnish and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011013224.8A CN112063270A (en) | 2020-09-23 | 2020-09-23 | Enameled wire insulation impregnating varnish and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112063270A true CN112063270A (en) | 2020-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011013224.8A Pending CN112063270A (en) | 2020-09-23 | 2020-09-23 | Enameled wire insulation impregnating varnish and preparation method and application thereof |
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| Country | Link |
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| CN (1) | CN112063270A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7046280B1 (en) * | 2021-05-13 | 2022-04-01 | 三菱電機株式会社 | Insulation varnish composition, insulation varnish cured product, coil and method for manufacturing the coil |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1539899A (en) * | 2003-04-21 | 2004-10-27 | 索玛株式会社 | mfg. method of soaking adaptable liquid epoxy resin compound, and generator thereof |
| JP2007213908A (en) * | 2006-02-08 | 2007-08-23 | Hitachi Cable Ltd | Self-lubricating enamel wire and coating material |
| CN105925137A (en) * | 2016-06-18 | 2016-09-07 | 合肥浦尔菲电线科技有限公司 | Environment-friendly insulating paint and preparation method thereof |
-
2020
- 2020-09-23 CN CN202011013224.8A patent/CN112063270A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1539899A (en) * | 2003-04-21 | 2004-10-27 | 索玛株式会社 | mfg. method of soaking adaptable liquid epoxy resin compound, and generator thereof |
| JP2007213908A (en) * | 2006-02-08 | 2007-08-23 | Hitachi Cable Ltd | Self-lubricating enamel wire and coating material |
| CN105925137A (en) * | 2016-06-18 | 2016-09-07 | 合肥浦尔菲电线科技有限公司 | Environment-friendly insulating paint and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 《电气工程师手册》第二版编辑委员会: "《电气工程师手册》", 30 June 2000, 北京：机械工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7046280B1 (en) * | 2021-05-13 | 2022-04-01 | 三菱電機株式会社 | Insulation varnish composition, insulation varnish cured product, coil and method for manufacturing the coil |
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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: 20201211 |
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| RJ01 | Rejection of invention patent application after publication |