CN100557729C - Method for manufacturing C-shaped iron core of voltage transformer - Google Patents
Method for manufacturing C-shaped iron core of voltage transformer Download PDFInfo
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- CN100557729C CN100557729C CNB2007100109767A CN200710010976A CN100557729C CN 100557729 C CN100557729 C CN 100557729C CN B2007100109767 A CNB2007100109767 A CN B2007100109767A CN 200710010976 A CN200710010976 A CN 200710010976A CN 100557729 C CN100557729 C CN 100557729C
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- strip lamination
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract description 11
- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 32
- 238000007598 dipping method Methods 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims abstract description 4
- 238000003475 lamination Methods 0.000 claims description 27
- 239000004922 lacquer Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 6
- 238000003825 pressing Methods 0.000 abstract description 3
- 239000011229 interlayer Substances 0.000 abstract description 2
- 238000005520 cutting process Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000003973 paint Substances 0.000 abstract 1
- 238000010008 shearing Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 239000003921 oil Substances 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The manufacturing method of the C-shaped iron core of the voltage transformer comprises the steps of shearing silicon steel sheets into strip-shaped sheets according to the unfolding size of the C-shaped iron core of the voltage transformer, placing the strip-shaped sheets in a groove, stacking and overlapping the strip-shaped sheets into strip-shaped laminated sheets; and (2) respectively clamping two ends of the strip-shaped laminated piece by using two clamps, placing the clamped strip-shaped laminated piece on a U-shaped die, pressing the strip-shaped laminated piece up and down, left and right simultaneously to form a C-shaped iron core, performing spot welding, heat treatment and paint dipping on two ends of the C-shaped iron core, cutting and leveling the ends of the two C-shaped iron cores according to the size, and grinding. The invention can save time and labor, greatly improve the production efficiency, increase the interlayer compactness of the silicon steel sheet, improve the product quality, realize the standardized flow line production and greatly improve the yield. More importantly, the leftover materials of the silicon steel sheets can be utilized to greatly reduce the cost. The invention is scientific and reasonable, has creative conception, maintains the advantages and technical performance of similar products, and has strong practicability; it is suitable for various departments of supplying and using electricity.
Description
Technical field
What the present invention relates to is instrument transformer manufacture method unshakable in one's determination, and concrete is the manufacture method of C-type ironic core of voltage mutual inductor.
Background technology
Instrument transformer is a very important equipment for generating, power supply and electricity consumption department; it also is in very crucial position in electrical network; it is one of extremely important equipment that guarantees power grid security, operation reliably and people's operate as normal and household electricity that instrument transformer is connected with indicating instrument, relaying protection; and the quality of the structure of instrument transformer and making, the especially production method of instrument transformer iron core directly have influence on the quality and the safety of power supply.Though the making of instrument transformer has been a comparatively ripe a special kind of skill, yet in order to improve the quality and safety of power supply and electricity consumption, according to the concrete environment for use of all departments and the situation of demand, carried out the reform and the raising that gear to actual circumstances for the instrument transformer of present use, manufacturing of now general C-type ironic core of voltage mutual inductor, all be to adopt the method that rolls to produce, the production process that is it is the size of elder generation by the C type voltage transformer product of demand, large stretch of silicon steel sheet is cut into the rectangular of corresponding size, the mould of rectangle is installed on volume iron machine then, size by product gets on the rectangular volume in layer of corresponding silicon steel sheet again.Because approximate cylindrical of of forming by a plurality of rectangular silicon steel sheets in the cross section of C type rectangular core, the rectangular silicon steel sheet to each different in width in the process that rolls all will be changed different moulds, all need to readjust at every turn, so the now general method that rolls is not only time-consuming but also take a lot of work, be difficult to guarantee the degree of packing of C type rectangular core and the unification of profile, production brings suitable difficulty to standard batch for this, also directly have influence on simultaneously the quality of product, also be difficult to accomplish produce in enormous quantities.
All wish on the basis that keeps original C-type ironic core of voltage mutual inductor advantage, further to raise the efficiency, reduce cost as confession, electricity consumption department, produce the better C-type ironic core of voltage mutual inductor of performance.
Summary of the invention
The objective of the invention is to adopt the deficiency that rolls the method existence at present making C-type ironic core of voltage mutual inductor, common way is also to need incision again to be C shape after rolling into rectangle at present, in the process of making, need more mold exchange frequently, each replacing all need proofread and adjust again, not only time-consuming but also take a lot of work, and be difficult to guarantee the degree of packing unshakable in one's determination and the unification of profile, for solution rolls the shortcoming that method is produced, and provide a kind of direct method to be pressed into the compact conformation of C shape, the manufacture method of making simple and direct C-type ironic core of voltage mutual inductor with compacting.
The technical scheme that adopts is:
The manufacture method of C-type ironic core of voltage mutual inductor is characterized in:
Size according to the C-type ironic core of voltage mutual inductor expansion, whole silicon steel sheet cut into a plurality of bar shaped silicon steel sheets, the bar shaped silicon steel sheet is placed in the groove, be seated, folded reality becomes the strip lamination, be clamped on the two ends of strip lamination respectively with two clamps, the strip lamination of chucking is placed on the U pattern tool, as shown in Figure 6, U pattern tool is positioned on the base of forcing press, square dies with intracardiac mouthful of consistent size of C sections is arranged on the strip lamination that is placed in above the U pattern tool, from about, about suppress the strip lamination simultaneously, it is pressed into the C sections heart, spot welding is carried out at two ends to the C sections heart that is pressed into, heat treatment, dipping lacquer trims two terminations of the C sections heart by size, polish.
Two medial surface symmetries of above-mentioned groove be provided with a plurality of steps, as shown in Figure 3 and Figure 4, silicon steel sheet is cut into the bar shaped silicon steel sheet that a plurality of width do not wait, the bar shaped silicon steel sheet becomes the strip lamination according to the placement of step order symmetry by two medial surface directions of mind-set in the bottom portion of groove from big to small with the width of bar shaped silicon steel sheet, and the two ends of strip lamination are respectively with two clamps chuckings.
The profile of the strip lamination of the inner casing of above-mentioned clamp and the C sections heart fits like a glove.
The present invention is different to roll into now to cut behind the rectangle again and is the production method of C shape, and the transformation of the way is for directly being pressed into C shape with the method for suppressing, solve the method that rolls and produced the problem that C core exists, the C sections heart that the present invention produces can not only increase substantially production efficiency in the time and labour saving, increase the interlayer degree of packing of silicon steel sheet, improve the quality of product, can also realize the production of standardized stream waterline, increase substantially output.The more important thing is and to utilize the leftover pieces of silicon steel sheet significantly to reduce cost.
C-type ironic core of voltage mutual inductor manufacturing process of the present invention is scientific and reasonable, conceive original, keep the advantage and the technical performance of like product, can utilize tailing production in the making, thereby reduced cost, and then can carry out standardized production, C-type ironic core of voltage mutual inductor reliability height of the present invention, can guarantee long-term safety operation, install convenient, do not need to safeguard that operation cost is low, compact overall structure of the present invention, do not produce interference of noise, have extremely strong practicality; The suitable various uses of the present invention for, electricity consumption department.
Need to prove that under the prerequisite that does not change the principle of the invention and design, can also make some changes or distortion to the present invention, this belongs to protection scope of the present invention equally.
Description of drawings
Fig. 1 is the schematic diagram of the embodiment of the invention one.
Fig. 2 is the groove schematic top plan view that the present invention puts the bar shaped silicon steel sheet.
Fig. 3 is that Fig. 2 A-A is to view.
Fig. 4 is the strip lamination schematic diagram that the present invention tightens.
Fig. 5 is the schematic diagram of clamp of the present invention.
Fig. 6 is a U pattern tool schematic diagram of the present invention.
Fig. 7 is the schematic diagram of the embodiment of the invention two.
Fig. 8 is the groove schematic top plan view of putting the bar shaped silicon steel sheet of the embodiment of the invention two.
Fig. 9 is that Fig. 8 B-B is to view.
Figure 10 is the strip lamination schematic diagram of the chucking of the embodiment of the invention two.
Figure 11 is the schematic diagram of the clamp of the embodiment of the invention two.
Embodiment
Embodiment one
The manufacture method of C-type ironic core of voltage mutual inductor, as shown in Figure 1, at first the development size according to the C sections heart 1 cuts into a plurality of bar shaped silicon steel sheets that width does not wait with whole silicon steel sheet, sort out by the width difference, go out to need sheet number according to the THICKNESS CALCULATION of the C sections heart 1 cross section of different size with strip piece, strip piece is placed in respectively in the bottom shape groove 6 the same with the geometry of the C sections heart 1 side, shown in Fig. 2-3, be groove 6 two medial surface symmetries be provided with a plurality of steps 7, the bar shaped silicon steel sheet is placed according to standing of step order symmetry with the width of strip piece to two medial surface directions from big to small by the bottom centre of groove 6 becomes strip lamination 2, the real back of strip lamination 2 pendulum tightens at the two ends of strip lamination 2 respectively with two consistent clamps 3 of the cross-sectional geometry of two inner casing 5 shapes and the C sections heart 1, as shown in Figure 4, so that in pressing process, keep shape invariance, the effect of this clamp 3 is very important, as shown in Figure 5, there is not this clamp 3 just can not guarantee the consistency of the shape of product.
To have the pressure on top be 200 tons to used forcing press in the production, each side be three oil cylinders of 80 tons, in pressing process, the good strip lamination 2 of card is put on the U pattern tool 4 consistent with product design, as shown in Figure 6, U pattern tool 4 is to be placed on the base of forcing press, square dies with the consistent size of the C sections heart 1 internal orifice 12 is arranged on the strip lamination 2 that is placed in above the U pattern tool 4, want the centring point during placement, otherwise can bigger error appear so that serious meeting produces distortion after the moulding, oil cylinder with top presses down and compacting then, at this moment the two ends of strip lamination 2 perk, oil cylinder with the left and right sides pushes to the centre again, and at this moment the C sections heart 1 is with regard to moulding.To weld, and with crude iron silk bundle jail the loose distortion of product when preventing to withdraw mould between the sheet of the silicon steel sheet at the two ends of the C sections heart 1 and the sheet with spot welding machine.With 1 heat treatment of the C sections heart, dipping lacquer, two terminations of the C sections heart 1 are trimmed, polish.
Embodiment two
Embodiment two and embodiment one are basic identical, different is that whole silicon steel sheet is cut into a plurality of bar shaped silicon steel sheets that width equates, the bar shaped silicon steel sheet stood be placed in the groove 10, as shown in Figure 9, be seated, the folded real strip lamination 8 that becomes, be clamped on the two ends of strip lamination 8 respectively with two clamps 9, as shown in figure 10, the strip lamination 8 of chucking is placed into and is pressed into the C sections heart 11 on the U pattern tool, as shown in Figure 7.
Claims (3)
1, the manufacture method of C-type ironic core of voltage mutual inductor is characterized in that:
Size according to the C-type ironic core of voltage mutual inductor expansion, whole silicon steel sheet cut into a plurality of bar shaped silicon steel sheets, the bar shaped silicon steel sheet is placed in the groove (10), be seated, folded reality becomes strip lamination (8), be clamped on the two ends of strip lamination (8) respectively with two clamps (9), the strip lamination (8) of chucking is placed on the U pattern tool (4), U pattern tool (4) is positioned on the base of forcing press, square dies with intracardiac mouthful of consistent size of C sections is arranged on the strip lamination (8) that is placed in above the U pattern tool (4), from about, about suppress strip lamination (8) simultaneously, it is pressed into the C sections heart (11), spot welding is carried out at two ends to the C sections heart (11) that is pressed into, heat treatment, dipping lacquer, two terminations of the C sections heart (11) are trimmed by size, polish.
2, the manufacture method of C-type ironic core of voltage mutual inductor according to claim 1, it is characterized in that: two medial surface symmetries of above-mentioned groove (6) be provided with a plurality of steps (7), silicon steel sheet is cut into the bar shaped silicon steel sheet that a plurality of width do not wait, with the bar shaped silicon steel sheet by the bottom centre of groove (6) to two medial surface directions with the width of bar shaped silicon steel sheet from big to small according to the standing to place and becoming strip lamination (2) of step (7) order symmetry, two clamps (3) chucking is used at the two ends of strip lamination (2) respectively.
3, the manufacture method of C-type ironic core of voltage mutual inductor according to claim 2 is characterized in that: the inner casing (5) of above-mentioned clamp (3) fits like a glove with the outside of the strip lamination (2) of the C sections heart (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100109767A CN100557729C (en) | 2007-04-16 | 2007-04-16 | Method for manufacturing C-shaped iron core of voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100109767A CN100557729C (en) | 2007-04-16 | 2007-04-16 | Method for manufacturing C-shaped iron core of voltage transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101086915A CN101086915A (en) | 2007-12-12 |
| CN100557729C true CN100557729C (en) | 2009-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100109767A Active CN100557729C (en) | 2007-04-16 | 2007-04-16 | Method for manufacturing C-shaped iron core of voltage transformer |
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| CN (1) | CN100557729C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101615505B (en) * | 2009-05-27 | 2012-03-07 | 北京中机联供非晶科技股份有限公司 | Method for forming U-shaped amorphous iron core of reactor |
| CN102069311A (en) * | 2010-12-07 | 2011-05-25 | 苏州和林精密科技有限公司 | Precise device |
| CN103625771B (en) * | 2013-11-06 | 2016-05-04 | 禾义（苏州）新型包装材料有限公司 | A kind of production method of U-shaped pin pier |
| CN105321703A (en) * | 2015-11-24 | 2016-02-10 | 国网辽宁省电力有限公司阜新供电公司 | Manufacturing method for power transformer core |
| CN106024321B (en) * | 2016-06-16 | 2018-08-17 | 秦皇岛市燕秦纳米科技有限公司 | Low noise CD iron-cores, transformer and iron core preparation method |
| CN113117083A (en) * | 2019-12-31 | 2021-07-16 | 刘永政 | Application of substance for improving activity of mammal Sirtuin protein family |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1105775A (en) * | 1994-09-06 | 1995-07-26 | 冶金工业部钢铁研究总院 | Method for manufacturing amorphous alloy thin band rectangle iron core |
-
2007
- 2007-04-16 CN CNB2007100109767A patent/CN100557729C/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1105775A (en) * | 1994-09-06 | 1995-07-26 | 冶金工业部钢铁研究总院 | Method for manufacturing amorphous alloy thin band rectangle iron core |
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| CN101086915A (en) | 2007-12-12 |
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Effective date of registration: 20220725 Address after: 116000 Tangfang community, Taiping sub district office, Pulandian District, Dalian City, Liaoning Province Patentee after: Dalian Puneng Technology Development Co.,Ltd. Address before: 116200 3-2-16, No. 71, Lingqian street, Pulandian City, Liaoning Province Patentee before: Liu Yongzheng |
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