Magnetic suspension type dynamic sheet shape testing method

A detection method and magnetic levitation technology, applied in the direction of electric/magnetic solid deformation measurement, electromagnetic measuring device, electric/magnetic roughness/irregularity measurement, etc., can solve problems such as difficulty in mastering, high cost, complicated equipment, etc., and achieve easy Easy maintenance and detection, long service life of equipment

Inactive Publication Date: 2008-09-17
BAOSHAN IRON & STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method has complex equipment, is difficult to master, and is expensive.

Method used

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  • Magnetic suspension type dynamic sheet shape testing method
  • Magnetic suspension type dynamic sheet shape testing method
  • Magnetic suspension type dynamic sheet shape testing method

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Embodiment Construction

[0039] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0040] see figure 1 , figure 2 , a magnetic levitation type dynamic flatness detection method, first the steel strip 1 to be tested is tensioned by the front and rear conveying rollers 2a, 2b, and then the strip steel 1 being conveyed is lifted up by a certain amount perpendicular to the conveying direction through the magnetic levitation control system high. The magnetic levitation control system is composed of electromagnet 4, sensor 5, control computer 6 and power amplifier 7. Several electromagnets 4 correspond to the sensors 5 one by one and are installed above and below the passage of the strip steel 1 on the upper and lower sides of the bracket 3. They are arranged in a row horizontally along the passage direction of the strip steel 1 and completely cover the width of the strip steel. 4 and the number of sensors 5 are five to twenty ...

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Abstract

The invention relates to a detection method for profile measurement in the process of strip rolling, in particular to a magnetic levitation type dynamic detection method for profile measurement, which is suitable for non-contact dynamic detection method for profile measurement in the process of metal sheet rolling. The invention is characterized in that (1) the detecting band steel is tensed by the front convey roller and the back convey roller, (2) the band steel in the process of convey is raised a certain height upwards vertical to the convey direction through the magnetic levitation control system, and (3) the control current data of the magnetic levitation control system is acquired and operated, the output signal drives the electromagnet of the control system raise the band steel to the predetermined altitude, and the profile information is acquired. The detection method for profile measurement in the process of strip rolling has the advantages of adopting non-contact detection method, dynamic detection of corresponding electromagnet winding coil amperage size of each parts of the band steel in the production process, dynamic detection of band steel profile information, free of damage of band steel surface caused by friction, free of abrasion of detecting equipment, convenient detecting, long service life of equipment, and easy maintenance.

Description

technical field [0001] The invention relates to a flatness detection method in the strip rolling process, which is suitable for the non-contact dynamic flatness detection in the metal sheet rolling process. Background technique [0002] The flatness of various plates and strips - the plate shape is an important indicator to measure its quality. In order to obtain a plate with good shape, it is necessary to conduct online dynamic detection of the shape during the rolling process, so as to control the rolling mill according to the detection results and precision requirements. At present, the existing dynamic shape detection devices are divided into two categories: contact type and non-contact type. [0003] Chinese patent CN2447768Y discloses a dynamic shape measuring roller. The measuring roller is a kind of contact-type dynamic shape detection device. Its principle is: when the surface of the strip steel is not flat, the distribution of the internal tensile stress along th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B38/02G01B7/24G01B7/34
Inventor 周坚刚
Owner BAOSHAN IRON & STEEL CO LTD
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