CN115101278A - Processing technology of resistor disc - Google Patents
Processing technology of resistor disc Download PDFInfo
- Publication number
- CN115101278A CN115101278A CN202210773402.XA CN202210773402A CN115101278A CN 115101278 A CN115101278 A CN 115101278A CN 202210773402 A CN202210773402 A CN 202210773402A CN 115101278 A CN115101278 A CN 115101278A
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- Prior art keywords
- zinc oxide
- disc
- resistor disc
- resistor
- polyvinyl alcohol
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- 238000005516 engineering process Methods 0.000 title claims abstract description 10
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 88
- 239000011787 zinc oxide Substances 0.000 claims abstract description 44
- 238000000227 grinding Methods 0.000 claims abstract description 29
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 22
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000005245 sintering Methods 0.000 claims abstract description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 9
- 239000011248 coating agent Substances 0.000 claims abstract description 9
- 238000000576 coating method Methods 0.000 claims abstract description 9
- 238000005507 spraying Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 8
- 239000000654 additive Substances 0.000 claims abstract description 7
- 239000002270 dispersing agent Substances 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 238000002360 preparation method Methods 0.000 claims abstract description 5
- 239000000243 solution Substances 0.000 claims description 21
- 239000000843 powder Substances 0.000 claims description 15
- 239000002002 slurry Substances 0.000 claims description 14
- 238000007599 discharging Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 6
- 238000000498 ball milling Methods 0.000 claims description 3
- 239000011362 coarse particle Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000010304 firing Methods 0.000 claims description 3
- 238000007667 floating Methods 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims description 3
- 239000012778 molding material Substances 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005469 granulation Methods 0.000 abstract description 3
- 230000003179 granulation Effects 0.000 abstract description 3
- 238000007711 solidification Methods 0.000 abstract description 3
- 230000008023 solidification Effects 0.000 abstract description 3
- 238000009740 moulding (composite fabrication) Methods 0.000 abstract 2
- 230000000996 additive effect Effects 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
- H01C17/30—Apparatus or processes specially adapted for manufacturing resistors adapted for baking
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
- H01C17/02—Apparatus or processes specially adapted for manufacturing resistors adapted for manufacturing resistors with envelope or housing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
- H01C17/06—Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base
- H01C17/065—Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base by thick film techniques, e.g. serigraphy
- H01C17/06506—Precursor compositions therefor, e.g. pastes, inks, glass frits
- H01C17/06513—Precursor compositions therefor, e.g. pastes, inks, glass frits characterised by the resistive component
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
- H01C17/06—Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base
- H01C17/065—Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base by thick film techniques, e.g. serigraphy
- H01C17/06506—Precursor compositions therefor, e.g. pastes, inks, glass frits
- H01C17/06513—Precursor compositions therefor, e.g. pastes, inks, glass frits characterised by the resistive component
- H01C17/06533—Precursor compositions therefor, e.g. pastes, inks, glass frits characterised by the resistive component composed of oxides
- H01C17/06546—Oxides of zinc or cadmium
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
- H01C17/28—Apparatus or processes specially adapted for manufacturing resistors adapted for applying terminals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
- H01C7/105—Varistor cores
- H01C7/108—Metal oxide
- H01C7/112—ZnO type
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
- H01C7/12—Overvoltage protection resistors
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermistors And Varistors (AREA)
Abstract
The utility model provides a processing technology of resistance card, relates to arrester subassembly technical field, and including the raw materials zinc oxide, polyvinyl alcohol solution, pure water, dispersant, additive, its step is: material preparation and granulation, water-containing forming, coating and sintering, aluminum spraying of grinding pieces, glazing and solidification. The zinc oxide resistor disc has a reasonable and compact structure, the performance of the zinc oxide resistor disc is effectively improved through the processing technologies of material preparation and granulation, water-containing forming, coating and sintering, aluminum spraying of the grinding disc and glazing and solidification, the requirements of the resistor discs of various specifications are met, the using effect is good, the quality is guaranteed, and the zinc oxide resistor disc is suitable for popularization.
Description
Technical Field
The invention relates to the technical field of energy sources, in particular to a processing technology of a resistor disc.
Background
At present, along with the continuous promotion of daily terminal quantity, the rapid development of electric power energy industry, especially the development of clean energy electric power such as photovoltaic, wind-force, the electric wire netting circuit is laid also more and more, and this is the arrester that uses among them just including the electric power line, and the main part is the Du Li Du dun core in the arrester, and general Du Li dun core all can have lightning-arrest structure to play the effect of lightning protection. The Duriton core body is composed of a group of resistance cards, the quality of the resistance cards directly determines the performance of the lightning arrester, and the zinc oxide resistance cards are widely used due to good performance, but the performance of the domestic zinc oxide resistance cards cannot meet the requirement of lightning protection of a higher power grid at foreign levels, and a high-performance resistance card is required to improve the performance of the lightning arrester.
Disclosure of Invention
The invention aims to solve the problems in the prior art, provides a processing technology of a resistor disc, and solves the problem that the conventional zinc oxide resistor disc is not ideal in performance.
The invention adopts the technical scheme for solving the technical problems that: the processing technology of the resistance card comprises the following steps of preparing zinc oxide, polyvinyl alcohol solution, pure water, dispersing agent and additives:
(A) burdening and granulating: adding 46.2L of polyvinyl alcohol solution and 1.5L of dispersant mixed solution into the mixing tank in batches; starting a stirrer, operating at a low speed, adding 7.514kg of additives, operating the stirrer at a high speed, adding 100kg of zinc oxide in batches for multiple times, measuring 250ml of tributyl phosphate solution, adding into a mixing tank, finally forming a zinc oxide material, dispersing at a high speed, ball-milling, stirring and discharging to form a zinc oxide resistance card molding material;
(B) forming with water: adding the zinc oxide valve sheet forming material into a water-containing mixer, taking out the granulated powder containing water from a discharge port, screening the taken-out granulated powder to remove coarse particle groups, sealing and storing, and adding the granulated powder into a powder forming machine to finally form the resistor sheet;
(C) coating and sintering: uniformly coating the slurry for the high-resistance layer prepared according to the preparation process rule of the slurry for the high-resistance layer of the Q/BT J05418 zinc oxide valve plate on the resistor plate, and conveying the resistor plate with the high-resistance layer into an oven for sintering;
(D) grinding and aluminum spraying: after sintering, feeding the resistance card into a grinding device to grind the upper end part and the lower end part and spraying aluminum to the end parts to form electrodes;
(E) glazing and curing: and taking out the resistor disc to be glazed, adhering an insulating glaze film layer with uniform thickness on the side surface of the resistor disc by using a glazing machine, drying the glazed resistor disc in the shade for 2-3 h, and heating and curing the glazed resistor disc after the glazed resistor disc is not sticky.
The solute polyvinyl alcohol in the polyvinyl alcohol solution was 1000 g.
As a further improvement of the invention, after the water-containing forming, the qualified zinc oxide resistance sheet blank after the pressing is uniformly placed in a pre-firing sagger for discharging the polyvinyl alcohol solution, and the polyvinyl alcohol solution discharging operation in the manufacturing process of the zinc oxide valve sheet is completed.
As a further improvement of the invention, when the zinc oxide raw material is added, 40-50kg of zinc oxide is uniformly dispersed and added in the first batch, 25-30kg of zinc oxide is added in the second batch, and 25-30kg of zinc oxide is added in the third batch.
As a further improvement of the invention, the ambient temperature of the forming room of the powder forming machine is kept within the range of 20-35 ℃, and the pressure is kept floating within the range of 8-10 kg.
As a further improvement of the invention, the specific gravity of the slurry of the high resistance layer slurry is controlled within the range of 1.6-1.7, and the slurry temperature is controlled between 15 ℃ and 50 ℃.
As a further improvement of the invention, the maximum setting temperature of the pre-sintering saggar for discharging the polyvinyl alcohol solution is 850-.
As a further improvement of the invention, the grinding disc of the grinding device is an upper grinding disc and a lower grinding disc which are arranged in a double grinding disc mode, and the upper grinding disc and the lower grinding disc are required to run in the positive and negative directions.
The invention has the beneficial effects that: the invention has reasonable and compact structure, simplifies unnecessary processes and improves the production efficiency by processing technologies of batching granulation, water-containing forming, coating sintering, aluminum spraying of abrasive discs and glazing solidification, effectively improves the performance of the zinc oxide resistance card, meets the requirements of resistance cards with various specifications, has good use effect and guaranteed quality, and is suitable for popularization.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
with reference to the accompanying drawings: the processing technology of the resistor disc in the embodiment comprises the following steps of raw materials including zinc oxide, polyvinyl alcohol solution, pure water, a dispersing agent and additives:
(A) burdening and granulating: adding 46.2L of polyvinyl alcohol solution and 1.5L of dispersant mixed solution into the mixing tank in batches; starting a stirrer, operating at a low speed, adding 7.514kg of additives, operating the stirrer at a high speed, adding 100kg of zinc oxide in batches for multiple times, measuring 250ml of tributyl phosphate solution, adding into a mixing tank, finally forming a zinc oxide material, dispersing at a high speed, ball-milling, stirring and discharging to form a zinc oxide resistance card molding material;
(B) forming with water: adding the zinc oxide valve sheet forming material into a water-containing mixer, taking out the granulated powder containing water from a discharge port, screening the taken-out granulated powder to remove coarse particle groups, sealing and storing, and adding the granulated powder into a powder forming machine to finally form the resistor sheet;
(C) coating and sintering: uniformly coating the slurry for the high-resistance layer prepared according to the preparation process rule of the slurry for the high-resistance layer of the Q/BT J05418 zinc oxide valve plate on the resistor plate, and conveying the resistor plate with the high-resistance layer into an oven for sintering;
(D) grinding and aluminum spraying: after sintering, feeding the resistance card into a grinding device to grind the upper end part and the lower end part and spraying aluminum to the end parts to form electrodes;
(E) glazing and curing: taking out the resistor disc needing glazing, adhering an insulating glaze film layer with uniform thickness on the side face of the resistor disc by using a glazing machine, drying the glazed resistor disc in the shade for 2-3 hours, and heating and curing after the glaze is not sticky.
Preferably, the solute polyvinyl alcohol in the polyvinyl alcohol solution is 1000 g.
After water-containing forming, uniformly placing the qualified zinc oxide resistance sheet blank after compression molding in a pre-firing sagger for discharging the polyvinyl alcohol solution, and finishing the operation of discharging the polyvinyl alcohol solution in the manufacturing process of the zinc oxide valve sheet.
When the zinc oxide raw material is added, 40-50kg of zinc oxide is uniformly dispersed in the first batch, 25-30kg of zinc oxide is added in the second batch, and 25-30kg of zinc oxide is added in the third batch.
The ambient temperature of the forming room of the powder forming machine is kept within the range of 20-35 ℃, and the pressure is kept floating within 8-10 kg.
The specific gravity of the slurry of the high resistance layer slurry is controlled within the range of 1.6-1.7, and the slurry temperature is controlled between 15 ℃ and 50 ℃.
The maximum setting temperature of the pre-sintering saggar for discharging the polyvinyl alcohol solution is 850-.
Preferably, the grinding disc of the grinding device is an upper grinding disc and a lower grinding disc which are arranged in a double-grinding-disc mode, and the upper grinding disc and the lower grinding disc rotate in the positive and negative directions. After the arrangement, the upper and lower grinding discs grind the upper and lower ends of the resistor sheet in the positive and negative directions simultaneously, so that a part of acting force can be mutually offset, and the grinding effect is more uniform and fine.
While the invention has been shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.
Claims (8)
1. A processing technology of a resistance card comprises the following raw materials of zinc oxide, polyvinyl alcohol solution, pure water, a dispersing agent and additives, and comprises the following steps:
(A) burdening and granulating: adding 46.2L of polyvinyl alcohol solution and 1.5L of dispersant mixed solution into the mixing tank in batches; starting a stirrer, operating at a low speed, adding 7.514kg of additives, operating the stirrer at a high speed, adding 100kg of zinc oxide in batches for multiple times, measuring 250ml of tributyl phosphate solution, adding into a mixing tank, finally forming a zinc oxide material, dispersing at a high speed, ball-milling, stirring and discharging to form a zinc oxide resistance card molding material;
(B) forming with water: adding the zinc oxide valve sheet forming material into a water-containing mixer, taking out the granulated powder containing water from a discharge port, screening the taken-out granulated powder to remove coarse particle groups, sealing and storing, and adding the granulated powder into a powder forming machine to finally form the resistor sheet;
(C) coating and sintering: uniformly coating the slurry for the high-resistance layer prepared according to the preparation process rule of the slurry for the high-resistance layer of the Q/BT J05418 zinc oxide valve plate on the resistor plate, and conveying the resistor plate with the high-resistance layer into an oven for sintering;
(D) grinding and aluminum spraying: after sintering, feeding the resistance card into a grinding device to grind the upper end part and the lower end part and spraying aluminum to the end parts to form electrodes;
(E) glazing and curing: and taking out the resistor disc to be glazed, adhering an insulating glaze film layer with uniform thickness on the side surface of the resistor disc by using a glazing machine, drying the glazed resistor disc in the shade for 2-3 h, and heating and curing the glazed resistor disc after the glazed resistor disc is not sticky.
2. A process for manufacturing a resistor disc as claimed in claim 1, wherein: the solute polyvinyl alcohol in the polyvinyl alcohol solution is 1000 g.
3. A process for manufacturing a resistor disc as claimed in claim 1, wherein: after the water-containing forming, uniformly placing the qualified zinc oxide resistance sheet blank after the pressing in a pre-firing sagger for discharging the polyvinyl alcohol solution, and finishing the operation of discharging the polyvinyl alcohol solution in the manufacturing process of the zinc oxide valve sheet.
4. A process for manufacturing a resistor disc as claimed in claim 1, wherein: when the zinc oxide raw material is added, 40-50kg of zinc oxide is uniformly dispersed in the first batch, 25-30kg of zinc oxide is added in the second batch, and 25-30kg of zinc oxide is added in the third batch.
5. A process for manufacturing a resistor disc as claimed in claim 1, wherein: the ambient temperature of the forming room of the powder forming machine is kept within the range of 20-35 ℃, and the pressure is kept floating between 8-10 kg.
6. A process for manufacturing a resistor disc as claimed in claim 1, wherein: the specific gravity of the slurry of the high-resistance layer is controlled within the range of 1.6-1.7, and the slurry temperature is controlled between 15 ℃ and 50 ℃.
7. A process for manufacturing a resistor disc as claimed in claim 2, wherein: the maximum set temperature of the pre-sintering saggar for discharging the polyvinyl alcohol solution is 850-.
8. The process for manufacturing the resistor disc according to claim 1, wherein the process comprises the following steps: the grinding disc of the grinding device is an upper grinding disc and a lower grinding disc which are arranged in a double-way manner, and the upper grinding disc and the lower grinding disc rotate in the positive and negative directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210773402.XA CN115101278A (en) | 2022-07-01 | 2022-07-01 | Processing technology of resistor disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210773402.XA CN115101278A (en) | 2022-07-01 | 2022-07-01 | Processing technology of resistor disc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115101278A true CN115101278A (en) | 2022-09-23 |
Family
ID=83294304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210773402.XA Pending CN115101278A (en) | 2022-07-01 | 2022-07-01 | Processing technology of resistor disc |
Country Status (1)
| Country | Link |
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| CN (1) | CN115101278A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115490510A (en) * | 2022-09-28 | 2022-12-20 | 江西百新电瓷电气有限公司 | Manufacturing method of lightning arrester resistor disc |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021608A (en) * | 2012-12-23 | 2013-04-03 | 南阳中祥电力电子有限公司 | High-gradient and high-capacity zinc oxide voltage dependent resistor disc and fabrication method thereof |
| US20170207009A1 (en) * | 2016-01-20 | 2017-07-20 | Hitachi, Ltd. | Voltage nonlinear resistor |
| CN108154983A (en) * | 2017-12-29 | 2018-06-12 | 国网湖南省电力有限公司 | Arrester zinc oxide resistance sheet and preparation method thereof |
| CN109192420A (en) * | 2018-08-22 | 2019-01-11 | 国家电网公司 | A kind of preparation method of high-performance zinc oxide resistor disc |
-
2022
- 2022-07-01 CN CN202210773402.XA patent/CN115101278A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021608A (en) * | 2012-12-23 | 2013-04-03 | 南阳中祥电力电子有限公司 | High-gradient and high-capacity zinc oxide voltage dependent resistor disc and fabrication method thereof |
| US20170207009A1 (en) * | 2016-01-20 | 2017-07-20 | Hitachi, Ltd. | Voltage nonlinear resistor |
| CN108154983A (en) * | 2017-12-29 | 2018-06-12 | 国网湖南省电力有限公司 | Arrester zinc oxide resistance sheet and preparation method thereof |
| CN109192420A (en) * | 2018-08-22 | 2019-01-11 | 国家电网公司 | A kind of preparation method of high-performance zinc oxide resistor disc |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115490510A (en) * | 2022-09-28 | 2022-12-20 | 江西百新电瓷电气有限公司 | Manufacturing method of lightning arrester resistor disc |
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Country or region after: China Address after: No. 11, Bailian Road, Shuige Industrial Zone, Lishui City, Zhejiang Province, 323000 Applicant after: Zhejiang Yatai Electric Technology Co.,Ltd. Address before: No. 11, Bailian Road, Shuige Industrial Zone, Lishui City, Zhejiang Province, 323000 Applicant before: Zhejiang Yuetai Electric Technology Co.,Ltd. Country or region before: China |