June 2009
Vol. 6, No. 6 - Full Table of Contents
Material Handling Technologies
About the Cover |
Anthony R. Bridge, 2009 AIST president and vice president — operations for United States Steel Corporation, Pittsburgh, Pa. A feature interview with Bridge begins on page 34. The cover background depicts images of U. S. Steel and the producer’s operations. Cover designed by Christopher P. Brown.
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| 45 |
Safety and Efficiency Improvements Utilizing Digital DC Controls
Andrew Thexton, president, Cableform Inc., Troy, Va. (andrew.thexton@cableform.com)
Through the implementation of digital DC controls, operations can become safer, “greener” and more reliable. Two technologies, digital DC hoist controls and digital DC magnet controls, are discussed, along with project results. |
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| 54 |
Steel Scrap Haulage:
A Look at How Advances in Rear-Eject Technology Have Enhanced and Streamlined the Steelmaking Process at Minimills
Josh Swank and LeRoy Hagenbuch, Philippi-Hagenbuch Inc., Peoria, Ill. (jjswank@philsystems.com, lhagenbuch@philsystems.com)
With the utilization of rear-eject truck bodies and trailers, steel mills have found a more efficient way of getting the correct scrap recipes in a less costly and quicker manner. This paper shows the evolution in scrap yard steel transport. |
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63 |
Emerging Technology: AC Sourced Magnet Control
Randy Creech, The Electric Controller & Manufacturing Co. LLC, St. Matthews, S.C. (creechr@ecandm.net)
This paper presents the advantages of AC power to control a DC lifting magnet. This technology eliminates the traditional components required in operating a DC lifting magnet, and leads to significant energy savings. |
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68 |
Fixed vs. Floating Rail Arrangements
Raymond Milman (left) and Charles Hoppel (right), Middough Inc., Cleveland, Ohio (hoppelcl@middough.com)
This paper reviews two different types of rail fasteners,
which provide “fixed” or “floating” rail attachments to the crane runway, and their effect on the wheel/rail interface. |
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75 |
New Technology for Hot Mill Coil Conveyors
Carl Brockway, general manager of sales — North America, SMS Siemag AG, Netphen, Germany (carl.brockway@sms-siemag.com)
SMS Siemag has developed new conveyor technology for the application of hot coil conveyance. The new technology
was researched with FEM heat analysis, prototype construction and a pilot project to demonstrate its effectiveness. |
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85 |
Bearing Repair Provides Valuable Alternative to Bearing Replacement for Heavy Industries
Kenneth Flowers, The Timken Co., Canton, Ohio (ken.flowers@timken.com)
Advancements in bearing design, materials, bearing maintenance and repair methods have greatly improved the potential for and popularity of bearing repair as an effective way to extend the life of a bearing. |
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139 |
Development of Amorphous-Alloy Film Coating Using the New Technique of Thermal Spraying
Ryurou Kurahshi, Naoko Nagao, Masahiro Komaki, Kazuaki Hakomori and Masahisa Kouzaki, Nakayama Steel Works Ltd.
The amorphous alloys can be processed from liquid state through a method of quick cooling. The processing methods cover the single-roll method, twin-roll method, centrifugation method, and so on. Thin bands of 50 µm or less, wire rod of 200 µm or less, and powdery products predominate amorphous alloys produced by these methods. For bulk of 1 mm or more thickness, however, it has been difficult to achieve quick cooling of the 105 K/sec level and, therefore, amorphous alloys of this type have not ever been successful. |
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Coming Next Month....
Continuous Casting Technologies
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