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Method for discriminating rolled material and apparatus for the method

A technology for rolling materials and identifying equipment, which is applied in the direction of analyzing materials, conducting material analysis by optical means, and polarization affecting characteristics, etc., can solve the problems of wrong transmission of steel plates and difficulty in forming mechanical marks.

Inactive Publication Date: 2010-06-16
DAIHATSU MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, even in this case, if the ordinary steel plate and the anti-rust steel plate are confused in the process of forming such a mechanical mark, the steel plate will be wrongly transferred to the manufacturing process thereafter
Also, based on the composition, it can be difficult to create a mechanical mark due to the appearance and function of the product

Method used

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  • Method for discriminating rolled material and apparatus for the method
  • Method for discriminating rolled material and apparatus for the method
  • Method for discriminating rolled material and apparatus for the method

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Embodiment Construction

[0060] A method for identifying rolled material and a device for implementing the method according to an embodiment of the present invention will be described below based on the accompanying drawings.

[0061] like figure 1 As shown in , according to the method of identifying a rolled material, light c1 whose oscillation direction is adjusted to one direction is irradiated onto the surface of the rolled material 20 to be identified so that the oscillation direction of the light is parallel to or perpendicular to the rolling The rolling direction of the material 20. The light c2 reflected by the surface of the rolled material 20 is received through the polarizer 12 a whose polarization direction is deviated from the oscillation direction of the light c1 irradiated on the surface of the rolled material 20 . Then, the non-rust-proof rolled material and the rust-proof rolled material are identified based on the received light amount.

[0062] And, if figure 1 As shown in, by us...

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Abstract

A method for discriminating a rolled material, comprising irradiating the surface of a rolled material as a discrimination object with light in an inclined irradiation direction, the light vibration direction being regulated in one direction, receiving light reflected from the rolled material surface through a polarizing element in which the direction of light reception is inclined to the rolled material surface and the direction of polarization to the direction of vibration of light applied to the rolled material surface is shifted, and discriminating whether the rolled material is a non-anticorrosive rolled material or an anticorrosive rolled material, based on the light reception amount.

Description

technical field [0001] The present invention relates to a method of identifying a rolled material by which a non-rust-proof rolled material and a rust-proof rolled material are distinguished from each other, and an apparatus. Background technique [0002] Rolled steel sheets are used to form, for example, the body of an automobile. Ordinary steel plates are used in automobiles for areas where rust is less likely to occur, or are used in automobiles whose application is not likely to cause rust, the surface of which is not itself subjected to anti-rust treatment, but anti-rust Steel sheets are used in automobiles in areas where rust is prone to occur, or in automobiles whose application tends to cause rust. For example, a galvanized layer diffusion-treated steel sheet is used as a rust-proof steel sheet. The anti-rust process is performed at a steel manufacturing plant, and the steel manufacturing plant sorts ordinary steel plates and anti-rust steel plates and sends them t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/21G01N21/47
CPCG01N21/8901G01N21/21
Inventor 中西广纯椋本厚司臼杵诚计见龙雄
Owner DAIHATSU MOTOR CO LTD
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