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Quick detection method for punching steel plate polar diagram data

A technology of stamping steel plates and pole figures, which is applied in the field of X-ray inspection and can solve problems such as inaccurate measurement and slow speed

Inactive Publication Date: 2003-06-25
UNIV OF SCI & TECH BEIJING
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Problems solved by technology

[0006] Aiming at the problems of slow speed and inaccurate measurement in the online measurement of deep-drawn steel plate pole figures, the present invention proposes a method for quickly detecting the pole figure of stamped steel plates on the basis of a two-dimensional X-ray detection system, so as to increase the measurement speed and at the same time , to further improve the accuracy of online measurement to suit industrial applications

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  • Quick detection method for punching steel plate polar diagram data
  • Quick detection method for punching steel plate polar diagram data
  • Quick detection method for punching steel plate polar diagram data

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Embodiment Construction

[0013] Use separately figure 1 with figure 2 The methods and regions shown were used to detect the data of three pole figures, {110}, {200} and {211} of the domestic ultra-deep drawn interstitial atom-free steel plate. Its measurement range is: α angle is 5π / 36~13π / 36, measured in a continuous manner; β angle measurement span is π / 2, and the value interval is π / 36. Then, the corresponding orientation distribution function is calculated and the complete {110} pole figure is inversely calculated using the conventional series expansion method. The result is as image 3 , Figure 4 shown. It can be seen that the two are basically consistent, showing that the method has high precision and is suitable for industrial applications.

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Abstract

The quick detection method for punched steel plate polar diagram data belongs to the field of X-ray detection technology. From eight polar diagrams of different crystal plane indexes {110}, {200}, {211}, {220}, {310}, {222}, {321} and {400}, 2-6 is selected as the tested polar diagrams. In 2D X-ray detection system, the polar diagram data in some alpha angle and some beta angle ranges. There data are utilized to ensure the consistency of the polar diagram method and traditional measurement method. The present invention has detection period only one percent of that in traditional detection method and has raised in-situ measurement precision. The present invention is suitable for industrial application.

Description

Technical field: [0001] The invention belongs to the technical field of X-ray detection. Background technique: [0002] Stamped steel plate is an important high-tech steel product for iron and steel metallurgical enterprises today. The texture of this type of steel plate and its corresponding plastic deformation anisotropy make it have excellent deep drawing deformation ability, and it has been widely used mainly in the automobile industry. The traditional detection of texture and corresponding plastic strain ratio is usually carried out offline. The shortcomings of this detection method are destructive, non-instantaneous, non-continuous, etc., and cannot meet the needs of large-scale modern steel production. [0003] The development and mass production of ultra-deep-drawn interstitial-free steel sheets and ordinary stamped steel sheets make it urgent for modern metallurgical production enterprises and the automobile industry to establish an online non-destructive testing ...

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Application Information

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IPC IPC(8): G01N23/00G01N23/04G01N23/083
Inventor 毛卫民陈冷冯惠平余永宁
Owner UNIV OF SCI & TECH BEIJING
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