CN106493479A - The method that different-thickness copper coin is welded together with transformer oil tank wall steel plate - Google Patents
The method that different-thickness copper coin is welded together with transformer oil tank wall steel plate Download PDFInfo
- Publication number
- CN106493479A CN106493479A CN201611195437.0A CN201611195437A CN106493479A CN 106493479 A CN106493479 A CN 106493479A CN 201611195437 A CN201611195437 A CN 201611195437A CN 106493479 A CN106493479 A CN 106493479A
- Authority
- CN
- China
- Prior art keywords
- copper coin
- steel plate
- welding
- tank wall
- wall steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/18—Dissimilar materials
- B23K2103/22—Ferrous alloys and copper or alloys thereof
Abstract
The present invention relates to a kind of method that different-thickness copper coin is welded together with transformer oil tank wall steel plate, belongs to technical field of transformer production.Technical scheme is：When welding between different-thickness copper coin, certain welded gaps are mutually reserved, arc welding from tank wall steel plate during welding；When welding between copper coin and tank wall steel plate, using the Type of Welding of plug welding hole, it is ensured that copper coin and the connection of tank wall steel plate are reliable；Plug welding hole increases on the outside of copper coin draws nest structure, that is, marks the circular groove concentric with plug welding hole on copper coin surface, it is ensured that can tense copper coin after filler metal and steel plate welding；Circular groove diameter d1 is more than plug welding bore dia d2.The positive effect of the present invention：Between copper coin and copper coin, welding reserves suitable butt-joint clearance；The plug welding hole that counterbore shape is chosen between copper coin and tank wall steel plate is welded, and is effectively ensured between copper coin and copper coin, being reliably connected between copper coin and tank wall steel plate, improve product quality.
Description
Technical field
The present invention relates to a kind of method that different-thickness copper coin is welded together with transformer oil tank wall steel plate, belongs to change
Depressor production technical field.
Background technology
In transformer industry, with being continuously increased for electric pressure and capacity, increasing product is in oil tank of transformer
Copper coin is welded with tank wall, offsets great current lead wire leakage field using the vortex counter magnetic field of copper coin.But in actual manufacturing process,
The copper coin size for serving as electric screen is larger, generally requires to splice, and is typically carried out using the higher gas metal-arc welding of efficiency
Fig. 1 and Fig. 2 is shown in welding, conventional soldering method, is docked using gapless, copper coin heat-transfer rate during due to splicing between conventional copper coin
Hurry up, the heat produced during welding is guided quickly, when copper plate thickness is more than 4mm, in order to ensure that welding quality generally requires weldering
Front preheating, when copper coin welding capacity is big, welding process is quite loaded down with trivial details, and the fastness connected between copper coin, copper coin has hidden danger, passes through
Often occur that appearance of weld is bad, in addition cannot be welded together situation, cause certain hidden danger to the welding of copper coin electric screen, with
The above-mentioned situation of increase for copper plate thickness becomes readily apparent from.
Content of the invention
It is an object of the invention to provide the side that a kind of different-thickness copper coin is welded together with transformer oil tank wall steel plate
Method, welding between copper coin and copper coin reserve suitable butt-joint clearance；The plug welding hole that counterbore shape is chosen between copper coin and tank wall steel plate enters
Row welding, is effectively ensured between copper coin and copper coin, being reliably connected between copper coin and tank wall steel plate, improve product quality, solves
The problems referred to above that background technology is present.
The technical scheme is that：
A kind of method that different-thickness copper coin is welded together with transformer oil tank wall steel plate, operational approach are as follows：
When welding between different-thickness copper coin, certain welded gaps are mutually reserved, arc welding from tank wall steel plate during welding；Copper coin
When welding between tank wall steel plate, using the Type of Welding of plug welding hole, it is ensured that copper coin and the connection of tank wall steel plate are reliable；
Weld between different-thickness copper coin, different according to the minimum thickness of copper coin, determine butt-joint clearance between copper coin：Copper coin is most
Little thickness 2-4mm, butt-joint clearance is 4-6mm；The minimum thickness of copper coin is less than or equal to 8mm more than 4mm, and butt-joint clearance is 8-
10mm；The minimum thickness of copper coin is less than or equal to 10mm more than 8mm, and butt-joint clearance is 12mm；Weld between copper coin and tank wall steel plate
When, increasing the plug welding hole being connected with tank wall steel plate in the middle of copper coin, filler metal in plug welding hole, by copper coin and tank wall steel plate
Between weld together.
In order to prevent not prison welding between copper coin and filler metal from causing admittedly copper coin to release, plug welding hole increases on the outside of copper coin to be drawn
Nest structure, that is, the circular groove concentric with plug welding hole is marked on copper coin surface, it is ensured that energy after filler metal and steel plate welding
Copper coin is enough tensed；Circular groove diameter d1 is more than plug welding bore dia d2.
Copper plate thickness 2-4mm, circular groove diameter d1 are 13mm, and plug welding bore dia d2 is 12mm；Copper plate thickness is more than 4mm
6mm is less than, circular groove diameter d1 is 18mm, and plug welding bore dia d2 is 14mm；Copper plate thickness is less than or equal to more than or equal to 6mm
8mm, circular groove diameter d1 are 22mm, and plug welding bore dia d2 is 18mm；Copper plate thickness is less than or equal to 10mm more than 8mm, circular
Groove diameter d1 is 24mm, and plug welding bore dia d2 is 20mm.
Copper coin is welded on transformer oil tank wall, the thickness of copper coin is typically between 2-10mm.
The positive effect of the present invention：Between copper coin and copper coin, welding reserves suitable butt-joint clearance；Between copper coin and tank wall steel plate
The plug welding hole for choosing counterbore shape is welded, and is effectively ensured between copper coin and copper coin, the reliability between copper coin and tank wall steel plate
Connection, improve product quality.
Description of the drawings
Fig. 1 is that prior art slitless connection welds cross-sectional schematic；
Fig. 2 opens double V-groove butt welding cross-sectional schematic for prior art；
Fig. 3 is to leave butt-joint clearance schematic diagram between embodiment of the present invention copper coin；
Fig. 4 is that embodiment of the present invention copper coin welds schematic diagram with tank wall steel plate；
In figure：Copper coin 1, copper coin 22, tank wall steel plate 3, butt-joint clearance 4, plug welding hole 5, circular groove 6.
Specific embodiment
The present invention is described further with reference to the accompanying drawings and examples.
A kind of method that different-thickness copper coin is welded together with transformer oil tank wall steel plate, operational approach are as follows：
When welding between different-thickness copper coin, certain welded gaps are mutually reserved, Fig. 3 is seen, arc-welding from tank wall steel plate during welding
Connect；When welding between copper coin and tank wall steel plate, using the Type of Welding of plug welding hole, Fig. 4 is seen, it is ensured that copper coin and the connection of tank wall steel plate
Reliable；
Weld between different-thickness copper coin, different according to the minimum thickness of copper coin, determine butt-joint clearance between copper coin：Copper coin is most
Little thickness 2-4mm, butt-joint clearance is 4-6mm；The minimum thickness of copper coin is less than or equal to 8mm more than 4mm, and butt-joint clearance is 8-
10mm；The minimum thickness of copper coin is less than or equal to 10mm more than 8mm, and butt-joint clearance is 12mm；Weld between copper coin and tank wall steel plate
When, increasing the plug welding hole being connected with tank wall steel plate in the middle of copper coin, filler metal in plug welding hole, by copper coin and tank wall steel plate
Between weld together.
Plug welding hole shape is shown in Fig. 4.
In order to prevent not prison welding between copper coin and filler metal from causing admittedly copper coin to release, plug welding hole increases on the outside of copper coin to be drawn
Nest structure, that is, the circular groove concentric with plug welding hole is marked on copper coin surface, it is ensured that energy after filler metal and steel plate welding
Copper coin is enough tensed；Circular groove diameter d1 is more than plug welding bore dia d2.
Copper plate thickness 2-4mm, circular groove diameter d1 are 13mm, and plug welding bore dia d2 is 12mm；Copper plate thickness is more than 4mm
6mm is less than, circular groove diameter d1 is 18mm, and plug welding bore dia d2 is 14mm；Copper plate thickness is less than or equal to more than or equal to 6mm
8mm, circular groove diameter d1 are 22mm, and plug welding bore dia d2 is 18mm；Copper plate thickness is less than or equal to 10mm more than 8mm, circular
Groove diameter d1 is 24mm, and plug welding bore dia d2 is 20mm.
Copper coin is welded on transformer oil tank wall, the thickness of copper coin is typically between 2-10mm.
Operating experience in the experiment of comprehensive multiple welding and actual production, determines above-mentioned butt-joint clearance in 2-10mm copper
Plate and transformer oil tank wall can play good welding effect when welding.When d1, d2 diameter chooses hour, copper coin heat conduction is fast
Welding quality cannot be ensured, welding capacity is big when choosing excessive, cause copper coin and tank wall steel plate welding deformation occur, increase subsequently whole
Shape workload, the operating experience in comprehensive multiple welding experiment and actual production.
Claims (3)
1. a kind of method that different-thickness copper coin is welded together with transformer oil tank wall steel plate, it is characterised in that operational approach
As follows：
When welding between different-thickness copper coin, certain welded gaps are mutually reserved, arc welding from tank wall steel plate during welding；Copper coin
When welding between tank wall steel plate, using the Type of Welding of plug welding hole, it is ensured that copper coin and the connection of tank wall steel plate are reliable；
Weld between different-thickness copper coin, different according to the minimum thickness of copper coin, determine butt-joint clearance between copper coin：Copper coin is most
Little thickness 2-4mm, butt-joint clearance is 4-6mm；The minimum thickness of copper coin more than 4mm be less than or equal to 8mm, butt-joint clearance be 8～
10mm；The minimum thickness of copper coin is less than or equal to 10mm more than 8mm, and butt-joint clearance is 12mm；Weld between copper coin and tank wall steel plate
When, increasing the plug welding hole being connected with tank wall steel plate in the middle of copper coin, filler metal in plug welding hole, by copper coin and tank wall steel plate
Between weld together.
2. the side that a kind of different-thickness copper coin according to claim 1 is welded together with transformer oil tank wall steel plate
Method, it is characterised in that：Plug welding hole increases on the outside of copper coin draws nest structure, that is, marks on copper coin surface concentric with plug welding hole
Circular groove, it is ensured that copper coin can be tensed after filler metal and steel plate welding；Circular groove diameter d1 is more than plug welding bore dia d2.
3. the side that a kind of different-thickness copper coin according to claim 2 is welded together with transformer oil tank wall steel plate
Method, it is characterised in that：Copper plate thickness 2-4mm, circular groove diameter d1 are 13mm, and plug welding bore dia d2 is 12mm；Copper plate thickness
6mm is less than more than 4mm, circular groove diameter d1 is 18mm, and plug welding bore dia d2 is 14mm；Copper plate thickness is little more than or equal to 6mm
In 8mm is equal to, circular groove diameter d1 is 22mm, and plug welding bore dia d2 is 18mm；Copper plate thickness is less than or equal to more than 8mm
10mm, circular groove diameter d1 are 24mm, and plug welding bore dia d2 is 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611195437.0A CN106493479A (en) | 2016-12-22 | 2016-12-22 | The method that different-thickness copper coin is welded together with transformer oil tank wall steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611195437.0A CN106493479A (en) | 2016-12-22 | 2016-12-22 | The method that different-thickness copper coin is welded together with transformer oil tank wall steel plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106493479A true CN106493479A (en) | 2017-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611195437.0A Pending CN106493479A (en) | 2016-12-22 | 2016-12-22 | The method that different-thickness copper coin is welded together with transformer oil tank wall steel plate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106808070A (en) * | 2017-04-01 | 2017-06-09 | 哈电集团（秦皇岛）重型装备有限公司 | A kind of oil tank of transformer copper coin welding method |
| CN107175422A (en) * | 2017-06-29 | 2017-09-19 | 蒂森克虏伯机场系统(中山)有限公司 | A kind of stainless steel track welding structure and its welding method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05185237A (en) * | 1991-12-11 | 1993-07-27 | Nippon Steel Corp | End welding method for titanium clad steel plates |
| CN104289821A (en) * | 2014-07-07 | 2015-01-21 | 正泰电气股份有限公司 | Transformer copper shield mounting method |
-
2016
- 2016-12-22 CN CN201611195437.0A patent/CN106493479A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05185237A (en) * | 1991-12-11 | 1993-07-27 | Nippon Steel Corp | End welding method for titanium clad steel plates |
| CN104289821A (en) * | 2014-07-07 | 2015-01-21 | 正泰电气股份有限公司 | Transformer copper shield mounting method |
Non-Patent Citations (3)
| Title |
|---|
| 李忠顺等: "变压器油箱铜板屏蔽焊接新工艺", 《变压器》 * |
| 王承志: "变压器邮箱的屏蔽结构和制造工艺", 《变压器》 * |
| 葛惠卿: "大型电力变压器油箱电屏蔽焊接工艺", 《焊接生产应用》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106808070A (en) * | 2017-04-01 | 2017-06-09 | 哈电集团（秦皇岛）重型装备有限公司 | A kind of oil tank of transformer copper coin welding method |
| CN107175422A (en) * | 2017-06-29 | 2017-09-19 | 蒂森克虏伯机场系统(中山)有限公司 | A kind of stainless steel track welding structure and its welding method |
| CN107175422B (en) * | 2017-06-29 | 2022-08-12 | 蒂森克虏伯机场系统(中山)有限公司 | Stainless steel rail welding structure and welding method thereof |
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Application publication date: 20170315 |
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