CN102431217B - Bending process for insulating paper board of large scale power transformer - Google Patents
Bending process for insulating paper board of large scale power transformer Download PDFInfo
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- CN102431217B CN102431217B CN 201110350779 CN201110350779A CN102431217B CN 102431217 B CN102431217 B CN 102431217B CN 201110350779 CN201110350779 CN 201110350779 CN 201110350779 A CN201110350779 A CN 201110350779A CN 102431217 B CN102431217 B CN 102431217B
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- bending
- insulating board
- distilled water
- insulating
- power transformer
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Abstract
The invention relates to a bending process for insulating boards of a large-scale power transformer, and belongs to the technical field of transformers. The invention adopts the technical scheme as follows: a wooden bar which is the same with the insulating boards to be bent in length is made, the end part of the wooden bar is chamfered, and a bending line for marking is drawn in a bending positions of the insulating boards; a brush is used for dipping distilled water and uniformly brushing the bending lines of the insulating boards in an immersed manner, and the brush immersing width is 160 mm; after brushing, 0.5 hour of staying is carried out, and then the distilled water is coated in a brushed manner again; after more than 0.5 hours staying, distilled water is used for brushing again; after more than 0.5 hour of staying, the distilled water is enabled to be absorbed uniformly, and then the bending is performed after water on the two surfaces of each insulating board is uniformly absorbed; the insulating boards are placed on the level ground, the chamfered edge of the wooden bar is aligned with the bending line and fixed by a clamp, the insulating boards are bent, meanwhile a wooden mallet is used for beating an outer insulating board in a position corresponding to the wooden bar, the bending radius is reduced, and the bending is achieved. The invention has the positive results as follows: in case of the condition that the dimension of the insulating board extends out of the working range of the bending machine, the bending work can be accomplished, the production can not be influenced, the investment is less, and the operation is simple.
Description
Technical field
The present invention relates to a kind of large-scale power transformer insulating board bending technique, belong to the transformer technology field.
Background technology
The SI semi-insulation cardboard that large-scale power transformer is used needs bending and molding, for example: be converted into " L ", " Z " shape is curved.Generally, the insulating board bending is carried out on special-purpose bender, still, when part needs the insulating board size of bending larger, has exceeded the bender working range, just can not finish the work, if bender is transformed, required expense is higher.
Summary of the invention
The purpose of this invention is to provide a kind of large-scale power transformer insulating board bending technique, in the situation that the insulating board size has exceeded the bender working range, complete bending work, small investment, easy and simple to handle solves the problems referred to above that background technology exists.
Technical scheme of the present invention is: large-scale power transformer insulating board bending technique, comprise following processing step: 1. make a yoke isometric with bending insulating board width, the yoke longitudinal surface is the plane, needs bending position to draw bending line at insulating board and makes marks; 2. dip distilled water with hairbrush and soak brush at insulating board bending line place equably, soak brush width 160mm; Placed 0.5 hour after having brushed one time, then brush one times distilled water; 3. place more than 0.5 hour, distilled water is evenly absorbed, carry out bending after the two sides suction evenly of inspection insulating board; 4. insulating board is placed on the level ground, yoke longitudinal surface alignment bending line is also blue fixing with card, and insulating board is turned up, and beats simultaneously the outer insulation cardboard at corresponding yoke place with wooden mallet, reduces radius bend, completes bending.
It is curved that above-mentioned steps is converted into 90 degree with insulating board, completes L shaped curved bending.
If need to fold Z-shaped curvedly, need bending position to draw the parallel bending line of twice at insulating board and make marks, after completing the bending of article one bending line, formalized 10 minutes, then complete the bending of the second bending line, make insulating board be in the bending state and finalize the design more than 0.5 hour, complete Z-shaped curved bending.
Good effect of the present invention: in the situation that the insulating board size has exceeded the bender working range, complete bending work, do not affect production, small investment, easy and simple to handle.
Description of drawings
Fig. 1 is the embodiment of the present invention one schematic diagram;
Fig. 2 is the embodiment of the present invention two schematic diagrames.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention will be further described by embodiment.
Embodiment one, folds L shaped curved.
Comprise following processing step: 1. make a yoke isometric with bending insulating board width, the yoke longitudinal surface is the plane, needs bending position to draw bending line at insulating board and makes marks; 2. dip distilled water with hairbrush and soak brush at insulating board bending line place equably, soak brush width 160mm; Placed 0.5 hour after having brushed one time, then brush one times distilled water; 3. place more than 0.5 hour, distilled water is evenly absorbed, carry out bending after the two sides suction evenly of inspection insulating board; 4. insulating board is placed on the level ground, yoke longitudinal surface alignment bending line is also blue fixing with card, and insulating board is turned up, and beats simultaneously the outer insulation cardboard at corresponding yoke place with wooden mallet, reduces radius bend, completes bending; It is curved that above-mentioned steps is converted into 90 degree with insulating board, completes L shaped curved bending.
Embodiment two, fold Z-shaped curved.
If need to fold Z-shaped curved, needing bending position to draw the parallel bending line of twice at insulating board makes marks, after completing the bending of article one bending line, formalized 10 minutes, then complete the bending of second bending line, make insulating board be in the bending state and finalize the design more than 0.5 hour, complete Z-shaped curved bending.
Claims (3)
1. large-scale power transformer insulating board bending technique, it is characterized in that comprising following processing step: 1. make a yoke isometric with bending insulating board width, the yoke longitudinal surface is the plane, needs bending position to draw bending line at insulating board and makes marks; 2. dip distilled water with hairbrush and soak brush at insulating board bending line place equably, soak brush width 160mm; Placed 0.5 hour after having brushed one time, then brush one times distilled water; 3. place more than 0.5 hour, distilled water is evenly absorbed, carry out bending after the two sides suction evenly of inspection insulating board; 4. insulating board is placed on the level ground, yoke longitudinal surface alignment bending line is also blue fixing with card, and insulating board is turned up, and beats simultaneously the outer insulation cardboard at corresponding yoke place with wooden mallet, reduces radius bend, completes bending.
2. large-scale electric power transformer insulated cardboard bending technique according to claim 1, is characterized in that insulating board is converted into 90 degree curved, completes L shaped curved bending.
3. large-scale electric power transformer insulated cardboard bending technique according to claim 1, it is characterized in that needing bending position to draw the parallel bending line of twice at insulating board makes marks, after completing the bending of article one bending line, formalized 10 minutes, then complete the bending of second bending line, make insulating board be in the bending state and finalize the design more than 0.5 hour, complete Z-shaped curved bending.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110350779 CN102431217B (en) | 2011-11-09 | 2011-11-09 | Bending process for insulating paper board of large scale power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110350779 CN102431217B (en) | 2011-11-09 | 2011-11-09 | Bending process for insulating paper board of large scale power transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102431217A CN102431217A (en) | 2012-05-02 |
| CN102431217B true CN102431217B (en) | 2013-05-08 |
Family
ID=45979729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110350779 Expired - Fee Related CN102431217B (en) | 2011-11-09 | 2011-11-09 | Bending process for insulating paper board of large scale power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102431217B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3824835A (en) * | 1972-12-04 | 1974-07-23 | Jackson Communication Corp | Cable bender |
| CN1531909A (en) * | 2003-03-21 | 2004-09-29 | 文s薰 | Bending clamping device and its producing method |
| CN101155681A (en) * | 2005-04-19 | 2008-04-02 | 利乐拉瓦尔集团及财务有限公司 | Method and arrangement in cardboard creasing |
| CN201913834U (en) * | 2010-11-08 | 2011-08-03 | 特变电工衡阳变压器有限公司 | Large-R circular arc bending tool for paper boards |
-
2011
- 2011-11-09 CN CN 201110350779 patent/CN102431217B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3824835A (en) * | 1972-12-04 | 1974-07-23 | Jackson Communication Corp | Cable bender |
| CN1531909A (en) * | 2003-03-21 | 2004-09-29 | 文s薰 | Bending clamping device and its producing method |
| CN101155681A (en) * | 2005-04-19 | 2008-04-02 | 利乐拉瓦尔集团及财务有限公司 | Method and arrangement in cardboard creasing |
| CN201913834U (en) * | 2010-11-08 | 2011-08-03 | 特变电工衡阳变压器有限公司 | Large-R circular arc bending tool for paper boards |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102431217A (en) | 2012-05-02 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20141109 |
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| EXPY | Termination of patent right or utility model |