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A method for preparing a flat-bottomed hole comparison test block for ultrasonic automatic detection of rods

A technology for automatic detection and comparison of test blocks, which is applied in the direction of material analysis, measurement device, and material analysis using sonic/ultrasonic/infrasonic waves. sexual effect

Active Publication Date: 2020-03-17
INNER MONGOLIA NORTH HEAVY INDS GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, ultrasonic automatic detection of bars can only use automatic detection equipment to find defects, and it is impossible to compare and quantify the degree of defects on site.

Method used

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  • A method for preparing a flat-bottomed hole comparison test block for ultrasonic automatic detection of rods

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Embodiment 1

[0023] The present invention cuts the test block body 1 into three test blocks along two parallel lines parallel to the central axis of the test block body 1,

[0024] Step 2) In the three-part test block that is cut in step 1), a flat-bottomed hole 2 is opened on the center line of the cut surface of the upper test block; two flat-bottomed holes 2 are opened on the center line of the cut surface of the lower test block;

[0025] Step 3) Connect the upper test block and the lower test block with the middle test block respectively after the hole is opened, and recombine them into a whole, and then weld the three parts of the test block into a whole test block by welding around the joint. A scale 5 with graduated values ​​is provided at the weld 4 of the block.

[0026] In the present invention, when the diameter of the test block body 1 is greater than 300 mm, clamps 3 are also required to be respectively provided at both ends of the welded integral test block.

[0027] The co...

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Abstract

The invention relates to a flat-bottomed hole reference testing block for automatic ultrasonic inspection of a bar material and a preparation method and belongs to the technical field of non-destructive inspection. The flat-bottomed hole reference testing block comprises a testing block body, wherein at least one flat-bottomed hole is formed in at least one parallel line, which is parallel to the central axis, in the testing block body; a ruler with scale values is arranged at a part, corresponding to an opening of the flat-bottomed hole, on the surface of the testing block body. The flat-bottomed hole reference testing block provided by the invention has the following advantages that 1, a plurality of flat-bottomed hole artificial defects with different depths and equivalents can be manufactured in the testing block according to requirements, to meet the detection requirements of different acceptance standards of pipe bar materials and products with different specifications, and an application range is wide; 2, positions of a plurality of flat-bottomed holes are marked in a vertical direction of the end face of the testing block and a horizontal stratification combining part of a scanning surface in the testing block; scales are marked on each direction position and the artificial defects are convenient to select in an inspection process; 3, the flat-bottomed hole reference testing block can be directly used for judging the found defects in an automatic ultrasonic inspection process; 4, the reference testing block for the automatic ultrasonic inspection of the pipe bar material has very good commonality.

Description

technical field [0001] The invention relates to a method for preparing a flat-bottomed hole comparison test block for bar material ultrasonic automatic detection, and belongs to the technical field of nondestructive testing. Background technique [0002] In the automatic ultrasonic testing of bar forgings, due to the specifications of the workpiece itself and the requirements of testing and acceptance standards, the equivalent size of defects allowed for different depth ranges is also different. At present, the ultrasonic automatic detection of bars can only use automatic detection instruments to find defects, and it is impossible to compare and quantify the degree of defects on site. To compare the degree of quantitative defect, it is necessary to use a portable instrument, and the comparison of the degree of quantitative defect can only be completed through a single comparison test block. Contents of the invention [0003] The purpose of the present invention is to prov...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N29/30
CPCG01N29/30G01N2291/0234G01N2291/0289
Inventor 王建新王海岭宋慧斌毛月娟赵洁
Owner INNER MONGOLIA NORTH HEAVY INDS GROUP
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