A welding method for an arc-shaped weldment with an L-shaped cross section

A welding method and technology of welded parts, applied in welding equipment, welding equipment, auxiliary welding equipment, etc., can solve the problems of lack of solutions and inability to complete high-precision matching of arc structures at the same time, and achieve convenient flip welding, rigidity and Reliable strength and uniform pressure distribution

Active Publication Date: 2019-10-22
SHANDONG NUCLEAR POWER EQUIP MFG
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Problems solved by technology

[0004] Traditional welding devices can only weld and rigidly fix relatively regular plates, and cannot simultaneously complete functions such as high-precision alignment of arc-shaped structures, welding deformation control, and multi-directional welding of workpieces through one clamping
[0005] To sum up, in the prior art, there is still a lack of effective solutions to the problems of high-precision alignment of arc-shaped structures and control of welding deformation

Method used

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  • A welding method for an arc-shaped weldment with an L-shaped cross section
  • A welding method for an arc-shaped weldment with an L-shaped cross section
  • A welding method for an arc-shaped weldment with an L-shaped cross section

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Embodiment Construction

[0049] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0050] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0051] As introduced in the background technology, in the prior art, there is a deficiency that only relatively ...

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Abstract

The invention provides a welding device and a method of arc welding parts with L-shaped sections, solves the problems of capability of only performing rigid welding fixation for more regular plates and incapability of synchronously finishing high-precision assembly of arc structures in the prior art, and achieves the effect of high welding precision. The welding device comprises a box body, and a rotating bracket at the lower part of the box body; the box body is welded with a long arc positioning surface with an L-shaped section; multiple arc pressing plates are arranged on one side of the long arc positioning surface; the arc welding parts are arranged between the long arc positioning surface and the multiple arc pressing plates; the segmented pressing of the arc welding parts is realized through a pressing mechanism welded on the box body; the box body and the rotating bracket are connected through a rotating shaft; and the box body can rotate around the rotating shaft by 360 degrees to realize multi-directional welding.

Description

technical field [0001] The invention relates to a welding device for a permanent cavity sealing ring of a pressurized water reactor nuclear power plant, in particular to a welding method for an arc-shaped welded part with an L-shaped cross section. Background technique [0002] The permanent reactor cavity sealing ring is arranged between the sealing edge of the reactor pressure vessel and the backing plate of the fuel pool plate, and is a circular water sealing device. When the fuel pool is flooded, the permanent cavity seal prevents water from entering the reactor cavity. [0003] The permanent reactor cavity sealing ring is designed as an L-shaped curved sealing section, which can absorb the radial and vertical expansion of the reactor pressure vessel during the heat increase of the power station. The permanent cavity sealing ring is assembled and welded by 6 sections of the same arc-shaped structure and connecting plate in the power station. The arc-shaped structure is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K31/02B23K37/04
Inventor 林法振孙文晏桂珍杨中伟刘山杜康洪顺平张海鹏滕仰坤
Owner SHANDONG NUCLEAR POWER EQUIP MFG
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