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Technology that sees hot objects

OG Technologies, Inc. (OGT) has invented HotEye® a breakthrough technology in non-contact sensing1. HotEye® is a proprietary imager, designed for high temperature applications. This technology can capture the image of an object that is as hot as 1,450C (tested, equivalent to 2,640F) with the same image quality as if the object were at room temperature. This innovation is based on OGT's expertise in optics, CCD technology, and electronic signal processing. HotEye® can be used in imaging systems for dimensional measurement and surface defect detection at up to 1,450C.

To date, the technology has been applied to applications in the hot rolled long product mills as HotEye® RSB Systems.

The HotEye® Rolled Steel Bar (RSB) Systems are designed for both the bar and rod mills to address the ever-lasting surface defect problems. The applications are now extended into the rail/shape mills and seamless tube mills. Successful tests and verifications have been documented in detecting both transverse and longitudinal defects, such as seams, checking marks, tears, slivers, overfills, and so forth. Capability of automatic detection, classification, marking on the images, repeating pitch calculation, and alarming for roll marks (repeating defects) is also well documented. Details can be found in our publications with AIST first in 2004 and also in 2018 (Iron & Steel Technology, Aug 2018), both available upon request. Benefits have been reported with reduced internal rejects and improved customer satisfaction, resulting in quick return on investment.

Integrating a HotEye® RSB system into a rolling mill is simple. HotEye® comes in as three modules. The sensor module is to be installed in line, with the bar path centerline aligned. The computing module is to be installed on the mill floor. A cable bundle will be supplied to link the two modules. A cooling module is equipped to ensure the system operation in harsh mill environment. The HotEye® RSB is linked to the rolling mill through one relay signal connection and one TCP/IP connection, in addition to all other required utilities. HotEye® data will be available to any offices and pulpits that have PCs linked to the mill network.

Products installed in North and South America, China, Europe, India, Japan, and Korea.

1 Patents Awarded in US and other major steel producing countries.

Ann Arbor, Michigan
(734) 973-7500

Write to us at sales@ogtechnologies.com for further information.

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