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Flame shaping method for side bending deformation of transformer core clamping piece

A technology of iron core clips and transformers, applied in the field of flame shaping, can solve problems such as labor-intensive, poor correction effect, and time-consuming, and achieve the effect of solving side bending deformation, good shaping effect, and simple and easy method

Inactive Publication Date: 2009-11-04
BAODING TIANWEI GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the method of correcting deformation after welding is mainly to use mechanical methods to correct deformation, and the correction effect is not good, and it is time-consuming and labor-intensive.

Method used

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  • Flame shaping method for side bending deformation of transformer core clamping piece
  • Flame shaping method for side bending deformation of transformer core clamping piece
  • Flame shaping method for side bending deformation of transformer core clamping piece

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1 (see figure 1 ):

[0025] The flame shaping method for the side bending deformation of the plate core clamp is as follows:

[0026] The linear heating method is adopted for the splint 3 of the plate-type iron core clamp, that is, vertical linear heating zones 2 that are equal to each other are adopted, and at the same time, horizontal swing heating is performed in the width direction of the vertical linear heating zone 2, and the vertical linear heating The width of the zone 2 is 0.5-2 times the height of the splint 3;

[0027] If heating once fails to meet the shaping requirements, repeat heating is performed, and the repeated heating part is staggered from the previous heating part.

Embodiment 2

[0028] Embodiment 2 (referring to Fig. 2):

[0029] The shaping method for the sidebending deformation directed to the non-core side of the web is as follows:

[0030] When the side bending deformation points to the non-core side of the web, the heating method of the triangular heating zone is respectively performed on the upper and lower limb plates of the clamp;

[0031] The triangular heating zone is a row of triangular heating zones, which are respectively located at the outer edges of the upper and lower limb plates, that is, the non-core side of the web, and the apex heights of the triangular heating zones are respectively greater than 1% of the width of the upper and lower limb plates. / 2, the bottom edge of the triangular heating zone is the outer edge of the upper and lower extremity plates; concentrated heating to 700-800 ° C, that is, the heated area is dark red;

[0032] If heating once fails to meet the shaping requirements, repeat heating is performed, and the r...

Embodiment 3

[0033] Embodiment 3 (see image 3 ):

[0034] The shaping method for the side bending deformation on the core side directed to the web is as follows:

[0035] When the side bending deformation points to the iron core side of the web, the upper and lower limb plates of the clamp are respectively heated in a triangular heating zone; at the same time, the web of the clamp is heated in a vertical linear shape;

[0036] The triangular heating area is a row of triangular heating areas, which are respectively located at the edges of the upper and lower limb plates near the web. The bottom edge of the triangular heating zone is the boundary between the upper and lower limb plates and the web plate; concentrated heating to 700-800 ° C, that is, the heated area is dark red;

[0037] The vertical linear heating of the web, that is, the vertical linear heating area corresponds to the triangular heating area located on the upper and lower limb plates, and the concentrated heating is 700-...

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Abstract

The invention relates to a flame shaping method for the side bending deformation of a transformer core clamping piece. The method in particular is as follows: for the side bending deformation of a splicing core clamping piece, a. when the side bending deformation is towards the non-core side of a web, an upper limb and a lower limb of the clamping piece are respectively heated by a method of triangular heating zone; and b. when the side bending deformation is towards the core side of the web, the upper limb and the lower limb of the clamping piece are respectively heated by the method of triangular heating zone, and simultaneously the web of the clamping piece is vertically and linearly heated. The invention has the positive effects of better solving the problem of side bending deformation of the transformer core clamping piece after welding and having good shaping effect; and the method is simple and easy.

Description

technical field [0001] The invention relates to a flame shaping method for side bending deformation of transformer iron core clips. Background technique [0002] The deformations after welding of the transformer core clips are mainly vertical bending deformation, side bending deformation and twisting deformation, and sometimes several deformations appear at the same time. In welding production, although some necessary measures are taken to control and reduce welding stress and deformation, there will always be some stress and deformation in the structure, and post-welding correction of deformation is part of clamp production. At present, the method of correcting deformation after welding is mainly to use mechanical methods to correct deformation, and the correction effect is not good, and it is time-consuming and labor-intensive. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a flame shaping method for side-ben...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D7/13C21D1/52
Inventor 张海燕于敬方王冠澎康运和
Owner BAODING TIANWEI GRP CO LTD
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