Transactions of the Society of Instrument and Control Engineers
Online ISSN : 1883-8189
Print ISSN : 0453-4654
ISSN-L : 0453-4654
Development of Automatic Inspection System Using a High Resolution Image Processor for Inclusion of Steel Products
Tadao SUGIMOTOTakao KAWAGUCHI
Author information
JOURNAL FREE ACCESS

1992 Volume 28 Issue 10 Pages 1145-1151

Details
Abstract
A variety of destructive and non-destructive inspection and estimation systems have been developed and used in the steel industry to support the quality assuarance of steel products. In these inspction and estimation, the important problems have been experienced using a microscope to inspect for estimation of non-metallic inclusions of steel products. The non-metallic inclusions inspection is kept severe criterion in wire rods which are making steel cords for automoble tire. Usually the criterion of the wire rods for the steel cords are applied Michelin Method. The harmful inclusions in wire rods for the steel cords are inspected and the size of inclusions are meausured and classified. Actually several automatic systems have been developed to inspect or to estimate of various inclusion of steel products. However, these systems have not been applied to satisify the criterion of the Michelin Method. In order to make the result of visual inspection corresponding to the result of an automatic inspection system, the resolution capacity of image processor system should approach that of the human visual resolution. The automatic microscopic inspection system has been developed using high resolution image processor with new descriminating method among various kinds of non-metallic inclusions. The accuracy of the system is kept within 0.5μm in the defined value. And standard deviation of the system is kept within 0.5μm. The processing time of this system is 3.4 seconds per one frame or 15 minutes for one specimen which have 265 view fields.
Content from these authors
© The Society of Instrument and Control Engineers (SICE)
Next article
feedback
Top