A method for forming the integral upper support column structure of reactor internals

A support column, integral type technology, applied in the field of structural forming of the integral upper support column of the reactor internal components, can solve the problems of large welding deformation, dimensional accuracy and shape and position tolerance are difficult to guarantee, shorten the manufacturing cycle and improve the forming quality , good mechanical properties

Active Publication Date: 2021-06-22
NUCLEAR POWER INSTITUTE OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are three strength welds in this manufacturing process, the welding deformation is relatively large, and the dimensional accuracy and shape tolerance after welding are difficult to guarantee

Method used

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  • A method for forming the integral upper support column structure of reactor internals
  • A method for forming the integral upper support column structure of reactor internals
  • A method for forming the integral upper support column structure of reactor internals

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Embodiment

[0067] In the design of the upper support column of the existing reactor internals, based on the assembly and welding process of each component, the upper support column is divided into the upper support column base (1), the upper support column body (2), and the upper support column flange (3) and upper support column extension tube (4), if attached figure 1 . The upper support column base (1), the upper support column body (2), the upper support column flange (3) and the upper support column extension tube (4) are respectively processed into shapes, and the full penetration welding of the pipe butt joint is carried out after assembly , to manufacture a complete upper support column.

[0068] The present invention is based on the electrofusion additive manufacturing technology, and the upper support column is designed as an integral structure, that is, the connecting welds between the structures are canceled. Based on the electro-fusion additive manufacturing technology, th...

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Abstract

The invention belongs to the technical field of capacitor additive manufacturing, and specifically relates to a method for forming an integral upper support column structure of stack internal components; The forming method of the integral upper support column structure of the inner member; the production of profiles and supporting welding materials is canceled, and the production cycle is shortened; all assembly welding and full penetration welds are canceled, welding deformation of the structure is avoided, and the forming quality is improved. ;The integrally formed upper support column is adopted, which has good structural continuity and better mechanical properties; the structural material properties of the integrally formed upper support column are uniform, especially the material properties in the thickness direction of the structure have no difference; the manufacturing process is greatly simplified and the manufacturing cycle is long. The amplitude is shortened.

Description

technical field [0001] The invention belongs to the technical field of capacitor additive manufacturing, and in particular relates to a method for forming an integral upper support column structure of stack internal components. Background technique [0002] The upper support column of the reactor internals is a key part of the reactor structure, which is used to support and connect the upper plate of the core, and at the same time provide a protective channel for the core measurement. At present, the commonly used manufacturing process is: full-penetration welding of the processed upper support column base, upper support column body, upper support column flange and upper support column extension tube for pipe butt joints. The required profiles include plates, Rods, pipes and matching welding consumables. This manufacturing process has three strength welds, the welding deformation is relatively large, and the dimensional accuracy and shape tolerance after welding are difficu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00
CPCB23P15/00B33Y10/00
Inventor 刘晓张宏亮许斌罗英余志伟饶琦琦王留兵李燕胡朝威王庆田张翼王仲辉
Owner NUCLEAR POWER INSTITUTE OF CHINA
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