CN102943417B - Production technology for annular insulating board used for super ultra-high voltage transformer - Google Patents
Production technology for annular insulating board used for super ultra-high voltage transformer Download PDFInfo
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- CN102943417B CN102943417B CN201210457402.5A CN201210457402A CN102943417B CN 102943417 B CN102943417 B CN 102943417B CN 201210457402 A CN201210457402 A CN 201210457402A CN 102943417 B CN102943417 B CN 102943417B
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Abstract
The invention discloses a production technology for an annular insulating board used for a super ultra-high voltage transformer, which comprises the following working procedures of: mixing size, manufacturing an adhesive pasty pulp board, cutting for forming, carrying out hot-pressing, and detecting, and the like. According to the production technology, the problems that the finished product insulation performance is lowered, materials are wasted, and the like in the cutting and forming process of the annular insulating board can be favorably solved, the product insulation performance is improved, the technical process is simplified, the production efficiency is improved, and the material waste is avoided.
Description
Technical field
The present invention relates to electrical insulations field, particularly a kind of technique manufacturing the annular insulation board being used for super-pressure or extra-high voltage transformer.
Background technology
At present, for the annular insulating board of super extra-high voltage transformer, normally by import, the difficult point of this annular cardboard manufacture is the manufacture of high-density large-piece insulating paperboard, and annular insulating board is shaping, particularly annular insulating board is shaping, the solution always do not worked out in this area.At present, normally first cardboard is made large-piece insulating paperboard, and then cut with metal knife, in cutting process, cutter contacts with annular insulating board and rubs, and can cause in insulating board containing metallic, reduce the insulating properties of insulating board, meanwhile, the insulating board that this cutting mode is produced, cut surface also needs the operations such as follow-up polishing grinding, certain pollution can be caused equally to insulating board, secondly, the waste material that cutting produces is more, causes larger waste.
Summary of the invention
The production technology that the object of the invention is to for the existing annular insulation board for super extra-high voltage transformer described in background technology easily pollutes insulating board, reduce the problem of its insulating properties, a kind of production technology that can solve the annular insulation board for super extra-high voltage transformer of foregoing problems is provided.
The technical scheme realizing object of the present invention is as follows:
For a production technology for the annular insulation board of super extra-high voltage transformer, it comprises the following steps:
Step 1, not float sulfate pulp and deionized water with 100% for raw material and modulate paper pulp, slurry will be made in modulated process in fiberizer to wear into required slurries, then remove the impurity in paper pulp, and make the concentration of paper pulp reach 0.1% ~ 0.8%, paper pulp beating degree reaches 40 ~ 80;
Step 2, the slurries that modulate sent in whitewashing former, be sprayed on by paper pulp on adhesive paste paper forming device, be pressed into certain thickness adhesive paste pulp board by adhesive paste paper forming device, wherein moisture is 60% ~ 80%;
Step 3, by numerical control liquid drugs injection cutter, adhesive paste pulp board is cut into required annular, during cutting, the hydraulic pressure control of numerical control liquid drugs injection cutter is at 10 ~ 25Mpa, and cutting speed controls at 6000 ~ 8000mm/min;
Step 4, by transport, the annular paste pulp board of well cutting in step 3 is delivered to hot-press arrangement and carry out hot pressing, hot pressing pressure is 70kg ~ 180kg, and hot pressing time is 30min ~ 90min, and hot pressing is staged supercharging mode;
After step 5, hot pressing complete, the annular insulation board be pressed into is delivered to the position of specifying.
In order to ensure the circularity of finished product, in described step 3, set cutting track in numerical control liquid drugs injection cutter as circular.
The shape of the water sprayed to prevent liquid drugs injection cutter to adhesive paste pulp board damages, and in described step 3, numerical control liquid drugs injection cutter is in cutting process, and the water of generation will be drained in time.
In order to make the annular insulating board internal fiber close structure made, in described step 2, the thickness of adhesive paste pulp board is 20 ~ 40mm, and according to manufacturing technique requirent, making a slice annular insulating board needs multilayer adhesive paste pulp board.
In order to make the annular insulating board internal fiber close structure made, in described step 4, hot pressing is divided into water squeezing stage, drying stage and maintenance stage, and pressure increases gradually.
In order to ensure the quality of annular insulating board, guarantee its insulating properties, the insulating board transferred out in described step 5 will be scanned by X-ray machine, confirms not metal impurities.
The production technology of the annular insulation board for super extra-high voltage transformer of the present invention, have employed numerical control liquid drugs injection cutter and adhesive paste pulp board is cut into required annular, in cutting process, any metallic can not be added, the insulating properties of finished product can not be affected, simultaneously, the adhesive paste pulp board edge of well cutting is highly polished, after compressing, substantially the operation of follow-up sanding and polishing is not needed, both improve the efficiency of work, reduced production cost, turn avoid the pollution to annular insulating board in these operations; And in cutting process, the slurry cut down can recycling, can not cause any waste of material.
Detailed description of the invention
Detailed illustrating is carried out to the specific embodiment of the present invention below:
Embodiment 1
For a production technology for the annular insulation board of super extra-high voltage transformer, it comprises the following steps:
Step 1, not float sulfate pulp and deionized water with 100% for raw material and modulate paper pulp, slurry will be made in modulated process in fiberizer to wear into required slurries, then the impurity in paper pulp is removed, and make the concentration of paper pulp reach 0.1% ~ 0.8%, be preferably 0.5%, paper pulp beating degree reaches 40 ~ 80, is preferably 60;
Step 2, the slurries that modulate are sent in whitewashing former, paper pulp is sprayed on adhesive paste paper forming device, be pressed into certain thickness adhesive paste pulp board by adhesive paste paper forming device, wherein moisture is 60% ~ 80%, is preferably 65;
Step 3, by numerical control liquid drugs injection cutter, adhesive paste pulp board is cut into required annular, during cutting, the hydraulic pressure control of numerical control liquid drugs injection cutter is at 10 ~ 25Mpa, and cutting speed controls at 6000 ~ 8000mm/min;
Step 4, by transport, the annular paste pulp board of well cutting in step 3 is delivered to hot-press arrangement and carry out hot pressing, hot pressing pressure is 70kg ~ 180kg, and hot pressing time is 30min ~ 90min, and hot pressing is staged supercharging mode;
After step 5, hot pressing complete, the annular insulation board be pressed into is delivered to the position of specifying.
Embodiment 2
In such scheme, in order to ensure the circularity of finished product, in described step 3, set cutting track in numerical control liquid drugs injection cutter as circular.
Further, the shape of the water sprayed to prevent liquid drugs injection cutter to adhesive paste pulp board damages, and in described step 3, numerical control liquid drugs injection cutter is in cutting process, and the water of generation will be drained in time.
In order to make the annular insulating board internal fiber close structure made, in described step 2, the thickness of adhesive paste pulp board is 20 ~ 40mm, and according to manufacturing technique requirent, making a slice annular insulating board needs multilayer adhesive paste pulp board; In described step 4, hot pressing is divided into water squeezing stage, drying stage and maintenance stage, and pressure increases gradually.
In order to ensure the quality of annular insulating board, guarantee its insulating properties, the insulating board transferred out in described step 5 will be scanned by X-ray machine, confirms not metal impurities.
Claims (5)
1., for a production technology for the annular insulation board of super extra-high voltage transformer, it is characterized in that: it comprises the following steps:
Step 1, not float sulfate pulp and deionized water with 100% for raw material and modulate paper pulp, slurry will be made in modulated process in fiberizer to wear into required slurries, then remove the impurity in paper pulp, and make the concentration of paper pulp reach 0.1% ~ 0.8%, paper pulp beating degree reaches 40 ~ 80;
Step 2, the slurries that modulate sent in whitewashing former, be sprayed on by paper pulp on adhesive paste paper forming device, be pressed into certain thickness adhesive paste pulp board by adhesive paste paper forming device, wherein moisture is 60% ~ 80%;
Step 3, by numerical control liquid drugs injection cutter, adhesive paste pulp board is cut into required annular, during cutting, the hydraulic pressure control of numerical control liquid drugs injection cutter is at 10 ~ 25Mpa, and cutting speed controls at 6000 ~ 8000mm/min;
Step 4, by transport, the annular paste pulp board of well cutting in step 3 is delivered to hot-press arrangement and carry out hot pressing, hot pressing pressure is 70kg ~ 180kg, hot pressing time is 30min ~ 90min, hot pressing is staged supercharging mode, hot pressing is divided into water squeezing stage, drying stage and maintenance stage, and pressure increases gradually;
After step 5, hot pressing complete, the annular insulation board be pressed into is delivered to the position of specifying.
2. the production technology of the annular insulation board for super extra-high voltage transformer according to claim 1, is characterized in that: in described step 3, sets cutting track as circular in numerical control liquid drugs injection cutter.
3. the production technology of the annular insulation board for super extra-high voltage transformer according to claim 1, is characterized in that: in described step 3, and numerical control liquid drugs injection cutter is in cutting process, and the water of generation will be drained in time.
4. the production technology of the annular insulation board for super extra-high voltage transformer according to claim 1, it is characterized in that: in described step 2, the thickness of adhesive paste pulp board is 20 ~ 40mm, according to manufacturing technique requirent, making a slice annular insulating board needs multilayer adhesive paste pulp board.
5. the production technology of the annular insulation board for super extra-high voltage transformer according to claim 1, is characterized in that: the insulating board transferred out in described step 5 will be scanned by X-ray machine, confirms not metal impurities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210457402.5A CN102943417B (en) | 2012-11-15 | 2012-11-15 | Production technology for annular insulating board used for super ultra-high voltage transformer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210457402.5A CN102943417B (en) | 2012-11-15 | 2012-11-15 | Production technology for annular insulating board used for super ultra-high voltage transformer |
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| CN102943417A CN102943417A (en) | 2013-02-27 |
| CN102943417B true CN102943417B (en) | 2015-05-13 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103354175A (en) * | 2013-07-30 | 2013-10-16 | 江苏亨特集团华特电气有限公司 | Method for manufacturing insulating laminating piece of transformer |
| CN107354825A (en) * | 2017-08-01 | 2017-11-17 | 张宝华 | A kind of new paper mould processing technology and its mould |
| CN112172236B (en) * | 2020-10-26 | 2022-06-10 | 潍坊汇胜绝缘技术有限公司 | Preparation method of insulating paper tube |
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| CN101343844A (en) * | 2008-05-07 | 2009-01-14 | 常州市英中电气有限公司 | Equipment and method for manufacturing high-density large-piece insulating paperboard |
| CN201261850Y (en) * | 2008-05-07 | 2009-06-24 | 常州市英中电气有限公司 | Equipment for producing high-density large insulating paperboard |
| CN101783236A (en) * | 2009-09-21 | 2010-07-21 | 湖南广信电工科技股份有限公司 | Process for producing insulating stay of transformer |
| CN101783241A (en) * | 2009-09-21 | 2010-07-21 | 湖南广信电工科技股份有限公司 | Process for producing transposed oxhorn cushion block of insulated coil of transformer |
| CN101783237A (en) * | 2009-09-21 | 2010-07-21 | 湖南广信电工科技股份有限公司 | Process for producing insulating rectangular stay of transformer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102216507A (en) * | 2008-11-14 | 2011-10-12 | 纳幕尔杜邦公司 | Processes for making sheet structures having improved compression performance |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101343844A (en) * | 2008-05-07 | 2009-01-14 | 常州市英中电气有限公司 | Equipment and method for manufacturing high-density large-piece insulating paperboard |
| CN201261850Y (en) * | 2008-05-07 | 2009-06-24 | 常州市英中电气有限公司 | Equipment for producing high-density large insulating paperboard |
| CN101783236A (en) * | 2009-09-21 | 2010-07-21 | 湖南广信电工科技股份有限公司 | Process for producing insulating stay of transformer |
| CN101783241A (en) * | 2009-09-21 | 2010-07-21 | 湖南广信电工科技股份有限公司 | Process for producing transposed oxhorn cushion block of insulated coil of transformer |
| CN101783237A (en) * | 2009-09-21 | 2010-07-21 | 湖南广信电工科技股份有限公司 | Process for producing insulating rectangular stay of transformer |
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Effective date of registration: 20170410 Address after: 213012 Jiangsu Province, the clock tower Development Zone, Changzhou Road, No. 385 Co-patentee after: China Electric Power Research Institute Patentee after: Changzhou Yingzhong Electrical Co., Ltd. Address before: 213012 Jiangsu Province, the clock tower Development Zone, Changzhou Road, No. 385 Patentee before: Changzhou Yingzhong Electrical Co., Ltd. |
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