Making method of 18-percent grey chip for visual detection of nuclear device

A technology of visual detection and production method, which is applied in the direction of copying/marking method, nuclear reactor monitoring, nuclear engineering, etc. It can solve the problems that it is difficult to ensure the visual detection effect of nuclear equipment, optimize the production equipment, improve the pass rate and service life , Improve the effect of grayscale accuracy

Active Publication Date: 2018-01-09
四川中核艾瑞特工程检测有限公司 +1
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Problems solved by technology

[0003] However, at present, there is no 18% standard gray card specially used for visual inspection of nuclear equipment in the industry, which makes most users can only purchase gray boards from the photography industry for cutting and hand-painted wire diameters for use, because there is no relevant metrological verification certificate A

Method used

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Embodiment Construction

[0015] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0016] Any feature disclosed in this specification, unless specifically stated, can be replaced by other alternative features that are equivalent or have similar purposes. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0017] A method for making a special 18% gray card for visual inspection of nuclear equipment of the present invention comprises the following steps: A, using computer graphics software to draw a standard neutral gray rectangular figure whose parameters are K=50%, R.G.B=127 or 128, in Draw a black comparison line on the gray rectangle graph, and then convert the drawn 18% grayscale base color parameter mode image file into a grayscale mode image file for preservation; B. Select high-gloss photo paper ...

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Abstract

The invention discloses a making method of an 18-percent grey chip for the visual detection of a nuclear device. The making method comprises the following steps of A, drawing a standard neutral-grey rectangular graph by adopting computer graphic software, drawing a black comparison line in the neutral-grey rectangular graph, and then converting a well drawn 18-percent grey primary color parametricmode graphic document into a grey level mode graphic document to carry out storage; B, selecting high-glossy photographic paper as printing paper, and carrying out electrostatic removal treatment onthe printing paper; C, printing a standard neutral grey chip by adopting a black-and-white laser printer; D, carrying out oxygen-free drying and color fixing treatment on the well printed standard neutral grey chip, and then cutting into a grey chip; E, carrying out grey level measurement on the grey chip, and metering the width of the black comparison line. The making method, through reasonably designing making steps, optimizing a used making device and adopting an original process, is used for effectively improving the grey level accuracy and the line width accuracy of the black comparison line when the grey chip is printed, and meanwhile, is used for greatly improving the percent of pass and prolonging the service life of a product through the oxygen-free drying and color fixing treatment and a detection procedure.

Description

technical field [0001] The invention relates to a preparation method of a nuclear equipment visual inspection tool, in particular to a preparation method of a special 18% gray card for nuclear equipment visual inspection. Background technique [0002] Visual inspection technology is an extremely important non-destructive testing method in the design, construction and operation of nuclear equipment. It is the first inspection process of all non-destructive testing methods. Vibration, corrosion, misalignment and surface defects of welded parts. According to the relevant standards of the nuclear industry, visual inspection requires the use of a special 18% gray card for visual inspection to confirm the inspection environment and the visual recognition ability of the operator to ensure the accuracy and effectiveness of the inspection results. Therefore, the standardized use of the 18% gray card that meets the requirements of the standard is the basis for the effectiveness and a...

Claims

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Application Information

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IPC IPC(8): G01N21/29G01N21/01G21C17/00B41M7/00B41M5/00
CPCY02E30/30
Inventor 韩景涛叶冰柯达鄢文勇胥凯
Owner 四川中核艾瑞特工程检测有限公司
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