CN109304554A - A kind of restorative procedure of power transformer enclosure postwelding angular deviation - Google Patents
A kind of restorative procedure of power transformer enclosure postwelding angular deviation Download PDFInfo
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- CN109304554A CN109304554A CN201811480066.XA CN201811480066A CN109304554A CN 109304554 A CN109304554 A CN 109304554A CN 201811480066 A CN201811480066 A CN 201811480066A CN 109304554 A CN109304554 A CN 109304554A
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- Prior art keywords
- seat
- postwelding
- angular deviation
- deviation
- heating
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/003—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to controlling of welding distortion
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The present invention relates to a kind of restorative procedures of power transformer enclosure postwelding angular deviation, belong to oil tank of transformer manufacturing technology field.The technical scheme is that measuring 1. when the inclination welded on tank wall (1), which increases seat postwelding angle, deviation occurs and determining the inclined direction of flange (2) axis and tilt angle；2. raising seat is cylindrical structure, in the side that tilt angle becomes larger, the circumferential progress flame heating that suitable position is chosen on the outside of seat along cylinder is being increased, heated length takes 1/3 circumferential length；3. determining the number of positions of flame heating according to angular deviation size, first time heating location is the middle position for increasing seat wall (3) height；4. measuring flange (2) axis angle deviation after cooling, if there is overproof, reheated heating the raising seating portion between position and tank wall (1), heated length takes 1/3 circumferential length.Benefit of the present invention has a wide range of application, the period is short, high-efficient, method is succinct, convenient to carry out.
Description
Technical field
The present invention relates to a kind of restorative procedures of power transformer enclosure postwelding angular deviation, belong to oil tank of transformer manufacture skill
Art field.
Background technique
Increasing seat is structural member important in power transformer tank, and according to function needs, transformer goes out in end wall sometimes
Line, the position of corresponding two casings is welded with the inclined raising seat of flange on end wall, because casing length size is big, increases seat method
Blue tilt angle slightly deviation, casing install rear end deviate it is oversized, can not be suitable with other components when leading to in-site installation
Benefit connection.Overall dimensions are big after fuel tank welding, and the method that can not be processed by postwelding guarantees to increase seat angle, and end wall welding is inclined
Oblique ascension dais angle once occurs overproof, often cuts open using by the weld seam for increasing seat wall and flange, adjusts weight after tilt angle
The method newly welded, heavy workload, repairing efficiency is long, there are hidden danger of quality, how to repair as unusual distinct issues.
Summary of the invention
It is cold using steel plate heat expansion it is an object of the present invention to provide a kind of restorative procedure of power transformer enclosure postwelding angular deviation
Flame shaping is applied in the postwelding angular deviation shaping for increasing seat class formation part, has a wide range of application, the period by the principle of contracting
It is short, high-efficient, method is succinct, convenient to carry out, efficiently solve the above problem present in background technique.
The technical scheme is that a kind of restorative procedure of power transformer enclosure postwelding angular deviation, includes following step
It is rapid: 1. when the inclination welded on tank wall, which increases seat postwelding angle, deviation occurs, measure determine the inclined direction of flange axis and
Tilt angle；2. raising seat is cylindrical structure, in the side that tilt angle becomes larger, suitable position is chosen on the outside of seat along circle increasing
The circumferential of cylinder carries out flame heating, and heated length takes 1/3 circumferential length；3. determining flame heating according to angular deviation size
Number of positions, first time heating location are the middle position for increasing seat wall height；4. measuring flange axis angle deviation after cooling
Value is reheated, heated length takes 1/3 circumferential length heating the raising seating portion between position and tank wall if there is overproof.
Distance is 100mm(millimeters between the heating location twice).
Previous processing raising seat tilt angle is overproof, can only cut open the weld seam that increase seat wall and flange, adjust inclination angle
It is welded again after degree, but this method heavy workload, to reprocess the period long, and part cross section quality is poor after cutting, after welding again
Appearance of weld is of poor quality, and there are hidden leakage defect, implementation of the invention can carry out shaping on the basis of not damaging and increasing seat, repairs
Multiple angular deviation；Method is succinct, convenient to carry out, at the scene of fuel tank welding, without additionally configuring other tools and equipment, directly
Heating is increased seat wall with gas cutting, exploitativeness is good.
The beneficial effects of the present invention are: having a wide range of application, do not limited by workpiece size dimension, solves oil tank of transformer postwelding
Size is big, and inclination increases seat angle can not be the problem of being repaired on machining equipment；Period is short, high-efficient, to original
Seat is increased not damage.
Detailed description of the invention
Fig. 1 is the main view that transformer oil tank wall and inclination increase seat welding；
Fig. 2 is the top view that transformer oil tank wall and inclination increase seat welding；
Fig. 3 is the left view that transformer oil tank wall and inclination increase seat welding；
Fig. 4 is that inclination increases seat postwelding inclined top view to the right；
Fig. 5 is that inclination increases flame shaping position after seat deformation；
In figure: tank wall 1, increases seat wall 3, flame shaping position 4 at flange 2.
Specific embodiment
Technical solution of the present invention is described in further detail with embodiment with reference to the accompanying drawing.
A kind of restorative procedure of power transformer enclosure postwelding angular deviation comprising the steps of: 1. when being welded on tank wall 1
When deviation occurs in inclination raising seat postwelding angle, measures and determine the inclined direction of 2 axis of flange and tilt angle；2. increasing seat is
Cylindrical structure, in the side that tilt angle becomes larger, the circumferential flame that carries out that suitable position is chosen on the outside of raising seat along cylinder adds
Heat, heated length take 1/3 circumferential length；3. determining the number of positions of flame heating according to angular deviation size, heating for the first time
Position is the middle position for increasing 3 height of seat wall；4. 2 axis angle deviation of flange is measured after cooling, if there is overproof,
The raising seating portion heated between position and tank wall 1 reheats, and heated length takes 1/3 circumferential length.
Distance is 100mm between the heating location twice.
The present invention is by flame heating means, the principle expanded with heat and contract with cold using steel plate, becomes larger direction increasing seat wall angle
Side, the circumferential suitable position of choosing along cylinder carry out flame heating shaping, increase seat wall and be heated the cooling after-contraction in side, rise
Dais wall height becomes smaller, so that raising seat entirety misalignment angle be made to be repaired.Using above-mentioned shaping methods, seat inclination angle is increased
It is obvious to spend deviation shaping effect, it can in a short time will be in overproof raising seat reparation to acceptability limit.
Claims (2)
1. a kind of restorative procedure of power transformer enclosure postwelding angular deviation, it is characterised in that comprise the steps of: and 1. work as tank wall
(1) it when deviation occurs in the inclination raising seat postwelding angle welded on, measures and determines the inclined direction of flange (2) axis and inclination angle
Degree；2. raising seat is cylindrical structure, in the side that tilt angle becomes larger, suitable position is chosen on the outside of seat along the week of cylinder increasing
To flame heating is carried out, heated length takes 1/3 circumferential length；3. determining the positional number of flame heating according to angular deviation size
Amount, first time heating location are the middle position for increasing seat wall (3) height；4. measuring flange (2) axis angle deviation after cooling
Value is reheated, heated length takes 1/3 circumference heating the raising seating portion between position and tank wall (1) if there is overproof
Degree.
2. a kind of restorative procedure of power transformer enclosure postwelding angular deviation according to claim 1, it is characterised in that: institute
Distance is 100mm between stating heating location twice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811480066.XA CN109304554B (en) | 2018-12-05 | 2018-12-05 | Method for repairing post-welding angle deviation of transformer lifting seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811480066.XA CN109304554B (en) | 2018-12-05 | 2018-12-05 | Method for repairing post-welding angle deviation of transformer lifting seat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109304554A true CN109304554A (en) | 2019-02-05 |
| CN109304554B CN109304554B (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811480066.XA Active CN109304554B (en) | 2018-12-05 | 2018-12-05 | Method for repairing post-welding angle deviation of transformer lifting seat |
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| Publication number | Publication date |
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| CN109304554B (en) | 2021-03-23 |
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Effective date of registration: 20210303 Address after: 071056 No. 2222 Print-Rite West Road, Hebei, Baoding Applicant after: BAODING TIANWEI BAOBIAN ELECTRIC Co.,Ltd. Address before: 2222 Tianwei West Road, Xinshi District, Baoding City, Hebei Province 071056 Applicant before: BAODING TIANWEI ELECTRICAL EQUIPMENT STRUCTURE Co.,Ltd. |
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