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Radiation self-shielding industrial online CT

A radiation shielding and self-shielding technology, applied in shielding, material analysis using wave/particle radiation, nuclear engineering, etc., can solve problems such as conflict, small size, and self-shielding devices can only be detected offline, to improve detection efficiency, The effect of flexible application scenarios

Active Publication Date: 2021-03-30
NAT INST CORP OF ADDITIVE MFG XIAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005]The purpose of this invention is to solve the conflict between the self-shielding device used in traditional industrial CT and the detection of large-sized parts, so that the size of the detectable parts is relatively small and the existing self-shielding To solve the problem that the device can only be detected offline, a radiation self-shielding industrial online CT is provided, which can realize non-destructive testing of large workpieces during the forming process and offline

Method used

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  • Radiation self-shielding industrial online CT
  • Radiation self-shielding industrial online CT
  • Radiation self-shielding industrial online CT

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Experimental program
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Effect test

Embodiment 1

[0053] Such as Image 6 It is shown that the radiation self-shielding industrial online CT of the present invention can detect defects in the additive manufacturing process online. In this embodiment, the object 10 to be tested is a large ring-shaped part, and the detection system composed of the mounting bracket 4, the detector 5, the radiation source 6 and the radiation shielding chamber 7 moves to a large On the top of the ring part, different magnification ratios can be realized through the radial movement of the crossbeam 3, and an appropriate magnification ratio is selected according to the actual situation for detection. At this time, the printing head 11 performs the arc additive manufacturing process, and the large ring part It is driven to make a uniform rotational movement, so that part of the newly formed part enters between the detector 5 and the ray source 6 for detection. Since the detection system can only partially scan large ring parts, the rotating mechanism...

Embodiment 2

[0055] Such as Figure 7 It shows that the radiation self-shielding industrial online CT of the present invention can detect the defects in the additive manufacturing process offline. In this embodiment, the object 10 to be tested is a large ring-shaped part, and the detection system composed of the mounting bracket 4, the detector 5, the radiation source 6, and the radiation shielding chamber 7 runs to the circular shape under the drive of the column turntable 1, the column 2, and the beam 3. On the top of the part, different magnification ratios can be realized through the radial movement of the beam 3. After selecting a suitable magnification ratio for detection according to the actual situation, the detection starts from the bottom end of the ring part, and the workpiece turntable 8 drives the ring part to rotate at a constant speed. One week, at the same time the detector 5 and the ray source 6 complete a week of detection. After completing the industrial CT scan of the f...

Embodiment 3

[0057] Such as Figure 8 It is shown that the radiation self-shielding industrial on-line CT of the present invention performs off-line detection of small parts. Driven by the column turntable 1, column 2, and beam 3, the installation bracket 4, the detector 5, the radiation source 6, and the radiation shielding chamber 7 are located above the parts to be measured as a whole, and make the parts to be measured as a whole in the cone of the radiation source 6. Within the range of the X-ray beam, the radial movement on the crossbeam 3 combined with the rotational movement of the detection system ensures that the part to be tested is within the range of the X-ray cone beam, the ray source 6 and the detector 5 are turned on, and the workpiece turntable 8 drives the part to be tested to perform a rotational movement. The entire test is completed after one week of scanning.

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Abstract

The invention provides a radiation self-shielding industrial online CT. A self-shielding device adopted by a traditional industrial CT conflicts with a large-size part to be detected, and as a result,the size of the part to be detected is relatively small, and the existing self-shielding device can only perform offline detection. With the radiation self-shielding industrial online CT adopted, theabove problem can be solved. The industrial online CT comprises a stand column rotary table, a stand column, a cross beam, a shielding bin rotary table, a radiation shielding bin, an installation support, a detector, a radiation source and N workpiece rotary tables, wherein N is larger than or equal to 1; the stand column is arranged on the stand column turntable; the cross beam is arranged on the stand column; the radiation shielding bin is arranged at the lower end of the shielding bin rotary table; openings are formed in the two sides of the radiation shielding bin, and lead rubber is arranged at the openings to prevent radiation leakage; the installation support is positioned above the workpiece rotary tables and is arranged in the radiation shielding bin; and the detector and the raysource are arranged in the installation bracket and are used for detecting a detected piece arranged on the workpiece rotary tables.

Description

technical field [0001] The invention belongs to the field of non-destructive testing, in particular to a radiation self-shielding industrial online CT. Background technique [0002] Industrial CT is the abbreviation of industrial computerized tomography technology. This technology uses nuclear imaging technology to meet the detection requirements of the inspected parts. It is a common non-destructive testing method in the industry. Its principle is to use the penetrating characteristics of X-rays or γ-rays According to the radiation intensity information obtained from the detector, the attenuation law and distribution of X-rays or γ-rays in the inspected part can be inversely deduced, so as to realize the two-dimensional or three-dimensional reconstruction imaging of the inspected part, and finally obtain the detection according to the reconstructed image. The defect, size, material and other information of the part can be easily evaluated to improve the safety of the part. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/046G21F3/00
CPCG01N23/046G21F3/00
Inventor 赵纪元卢秉恒杨高磊史立超
Owner NAT INST CORP OF ADDITIVE MFG XIAN
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