Measuring device for scale thickness of steel plate
A thickness measurement and oxide scale technology, applied in electromagnetic measurement devices, electric/magnetic thickness measurement, etc., can solve the problems of measurement accuracy decline, time consumption, damage, etc., and achieve the effect of reducing process load
Inactive Publication Date: 2017-07-11
POHANG IRON & STEEL CO LTD
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Problems solved by technology
[0004] To measure the scale thickness, there is a method of taking a sample and grinding its cross-section, and then observing it with a microscope, but this method consumes a lot of time and is a destructive measurement method, so it cannot be measured in the manufacturing process of
On the other hand, even in the case of measuring with a portable measuring device (here using an electromagnetic induction measuring sensor), although the sample can be collected and measured at room temperature, it cannot be measured on the manufacturing process line
[0005] In addition, as non-contact measurement methods, for example, there are laser ultrasonic method, microwave or X-ray diffraction method, etc., but the measurement accuracy of these methods will decrease when they are used in the manufacturing process, so there is a problem that they cannot be applied to the manufacturing process
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[0034] The present invention is capable of various modifications and includes multiple embodiments. Here, specific embodiments are shown in the drawings and described in detail below.
[0035] However, this is not intended to limit the present invention to specific embodiments, and it should be understood that various modifications, equivalents, and substitutions are included without departing from the technical idea and technical scope of the present invention.
[0036] In the present invention, terms such as "comprising" or "having" refer to the presence of features, numbers, steps, operations, constituent elements, components or combinations thereof in the description, and should not be understood as excluding one or more than two The existence or additional possibility of other features, numbers, steps, operations, constituent elements, components or combinations thereof.
[0037] In addition, it should be understood that the accompanying drawings in the present invention...
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The present invention relates to a device for measuring scale thickness, which includes: a conveying device for moving a steel plate with a predetermined width; a frame disposed on the upper side of the conveying device; a plurality of sensor devices connected to on the frame body, which is lowered during the stop period of the conveying device and measures the scale thickness of the steel plate; and a control part, which calculates the The thickness of the oxide scale on the steel plate.
Description
technical field [0001] The invention relates to a device capable of measuring scale thickness of a steel plate on-line. Background technique [0002] The oxide scale formed on the surface of the steel plate at high temperature plays a role in preventing the oxidation reaction from extending to the inside of the steel plate. However, if the thickness of the oxide scale becomes thicker, the oxide scale will be mixed in during welding. This leads to a problem of poor welding. In addition, the oxide scale peels off due to its reduced adhesion, causing problems in product quality such as rust. [0003] Therefore, in the manufacturing plant of steel plate or thick plate, it is more critical to study the best process to reduce the thickness of oxide scale and produce products. When oxide scale above a certain thickness is formed, it needs to be shot blasted ( Shot Blast) etc. to remove, therefore, accurate measurement of scale thickness in the manufacturing process has become an ...
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IPC IPC(8): G01B7/06
CPCG01B7/06
Inventor 洪在和朴富铉皇甫承
Owner POHANG IRON & STEEL CO LTD