Transformer oil tank welding method
A transformer oil tank and welding method technology, applied in welding equipment, arc welding equipment, manufacturing tools, etc., can solve the problems of difficult welding, low processing efficiency, and many welding joints, so as to reduce oil tank leakage and improve processing quality. Effect
Active Publication Date: 2021-01-12
HENAN SENYUAN HEAVY IND
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Problems solved by technology
However, due to the long weld seam in the box, it is more difficult to weld if it is directly welded, and the energy of the welder needs to be highly concentrated during the welding process, which has the problems of low processing efficiency and prone to errors
The existing welding method is usually to manually divide the long weld into multiple short welds for welding, but this will inevitably lead to too many welded joints. These welded joints are places where the arc starts and ends, and defects such as pores are prone to occur. fuel tank leak
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Embodiment Construction
[0022] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0023] The specific embodiment of transformer oil tank welding method of the present invention, as Figure 1 to Figure 4 As shown, the fuel tank body in this embodiment is composed of a fuel tank plate 1 , a high-pressure side plate 3 , a low-pressure side plate 2 and a bottom plate 4 . The low-voltage side panel 2 is vertically welded in the middle of the high-pressure side panel 3, the fuel tank plate 1 is an L-shaped structure, and its two sides extending along the vertical direction are respectively welded with the high-pressure side panel 3 and the low-voltage side panel 2, and the bottom plate 4 is horizontally arranged on the The bottoms of the low pressure side panel 2 and the fuel tank plate 1 are welded to the low pressure side panel 2 and the fuel tank plate 1 respectively.
[0024] It should be noted that since the bottom of the fuel tank bo...
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Abstract
The invention relates to a transformer oil tank welding method. The transformer oil tank welding method comprises the following steps that (1) technological notches are formed in the edges, needing tobe welded, of an oil tank plate, a low-voltage side panel and a high-voltage side panel, and the technological notches divide the edge of a plate body into at least two welding sections; (2) all theplate bodies are welded, during welding, one end of each welding section is subjected to arc striking, and the other end of each welding section is subjected to arc extinguishing; and (3) the technological notches are filled in an overlaying manner. According to the transformer oil tank welding method, the process notches are formed in the edge of the plate body needing to be welded, the process notches divide an original long weld joint into a plurality of short weld joints, and due to the fact that the arcing and arc extinguishing positions of each weld joint are located in the process notches and are filled in an overlaying mode, oil tank leakage caused by defects of an original welding joint can be reduced, and the processing quality of the oil tank is improved.
Description
Technical field [0001] The invention relates to a welding method of a transformer oil tank. Background technique [0002] Oil leakage from the transformer oil tank is a very common phenomenon in the industry. Oil tank leakage will cause a waste of transformer oil, increase the operating cost of the transformer, and bring hidden dangers to the operation of the transformer. The oil tank of the oil-immersed transformer is integrated on the transformer box. The oil tank plate needs to be bent and welded to the high-voltage side panel, low-voltage side panel and bottom plate. At the same time, it must also meet the requirements of no leakage, high temperature resistance, high pressure resistance, etc. Require. However, because the weld seam in the box is long, it would be difficult to weld directly, and the welder needs to be highly concentrated during the welding process, resulting in low processing efficiency and prone to errors. The existing welding method usually involves m...
Claims
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IPC IPC(8): B23K9/04B23K9/00
CPCB23K9/04B23K9/00
Inventor 张旭杨晓锋朱新民谢华华史重阳韩兴震王凯
Owner HENAN SENYUAN HEAVY IND