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Radiography inspection stand of nuclear power cast steel members

A technology of radiography and steel castings, which is applied in the direction of using radiation for material analysis, etc., to achieve the effect of reducing inspection costs, clamping castings firmly, and being safe and reliable

Active Publication Date: 2013-09-25
江苏万恒铸业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To greatly improve the inspection efficiency, it is convenient to adjust the focal length, rotate the casting, and arrange the film during operation.

Method used

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  • Radiography inspection stand of nuclear power cast steel members

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Embodiment Construction

[0007] The present invention demonstrates the implementation mode through its working principle. When in use, the gate of the closed inspection room is opened, castings are placed on each station of the indoor inspection table, and the four-jaw chuck 3 is used for clamping. Turn the carriage 7, the lower screw, the 8-axis, the upper hand wheel 11, adjust the distance from the center of the casting to the center of the disc on each station to meet the requirements of the focal length of the film, and arrange the film at the inspection position of each casting. Shake the handwheel 12 on the 5th axis of each worm, drive the worm gear 6 to drive the turntable 4 to rotate, select a satisfactory angle, and then take pictures of the cloth for inspection. After the inspection of one end is over, after the casting is fixed, the other end is photographed in turn until the entire volume of the casting is inspected.

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Abstract

The invention relates to the field of radiological inspection of nuclear power cast steel members and discloses a multi-station inspection stand designed aiming at radiation sources of iridium 192, cobalt 60, thulium 170 and the like. The inspection table uses the radiation sources as the center and performs radiography inspection on a plurality of cast steel members, each cast steel member can move forwards and backwards in radial mode relative to the center of the radiation sources and can rotate surrounding axial leads of the cast steel members, thereby facilitating photo distribution. The radiography inspection stand has the advantages of improving utilization rate of the radiation sources, reducing opening times of the radiation sources and radiation of gamma rays, reducing working intensity of operators, greatly improving working efficiency, stabilizing shooting quality, and ensuring a radiographic test (RT) process to be more convenient and reliable.

Description

technical field [0001] The invention discloses a manufacturing method of a radiographic inspection table for steel castings in nuclear power plants, relates to the field of radiography inspection of steel castings, is suitable for simultaneous inspection of multiple steel castings, can accurately locate at the same time, doubles the work efficiency, and guarantees the same quality as a single The same effect is obtained for the piece inspection. Background technique [0002] Steel castings used in nuclear power plants have high quality requirements. The quality policy is "quality first, safety first", and the quality goal is to meet the requirements of nuclear safety regulations and nuclear industry specifications, and can be used safely and reliably. With the vigorous development of nuclear energy utilization at home and abroad, the number of newly built nuclear power plants continues to increase, requiring a large number of nuclear power steel castings. In order to ensure...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N23/04
Inventor 陈德苏孙志标张玉银
Owner 江苏万恒铸业有限公司
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