Whitepapers

Quality Development in the Production of Strip Products

Middletown, Ohio, USA, had been asked to find a way to roll 3.5% silicon grain-oriented steel down to 0.05 mm for the production of small transformers that would make airborne radar possible. ARMCO’s engineers tried a number of different approaches, all to no avail. Even the use of a narrow four-high mill with very small diameter sapphire rolls failed because the high lateral force caused the rolls to snap in the middle.

Process-Line Z-High® Mill for Strip-Cast Steel

T. Sendzimir Inc.—originator of the cluster mill design—is modifying its existing Z-High® Mill to make it compatible with operating conditions within the continuous casting environment. Company officials believe the potential for this new design is “exciting.”

New Sendzimir Technology Assures Optimum Strip Quality at Armco

Armco Inc.’s Coshocton Operations as once again invested in Sendzimir equipment. The company has just modernized its first Z-High®, installed in 1981, to meet the design specifications of its second Z-High®, installed in 1997. “The new design incorporates computerized pass-line and side-support beam adjustment,” says Kerry Fender, General Supervisor, Cold Rolling, Armco Coshocton Operations. “This enables operations to make accurate adjustments assuring optimum strip quality for our customers.”…

MK Metallfolien GmbH to Produce Next-Generation Catalytic Converter Materials

In 1995–98, Krupp VDM, Emitec GmbH—the world’s largest manufacturer of metal catalytic converters—the Fraunhofer Institute for Applied Materials Research, and Wuppertal University discovered a new material – Aluchrom YHf – whose cousin, Aluchrom 7Al YHf, promises to meet the stringent new air pollution standards that will soon be imposed on automobiles in the United States and Europe. Patented by Krupp VDM, the alloy contains chromium, iron, and rare earth elements with as much as 7 percent aluminum by weight. The composition can heat up faster than any other material used in catalytic converters because of its relatively high thermal resistivity and its ability to be rolled to as thin as 0.001 inch (0.025 mm) without jeopardizing the material’s operating life. Moreover, the extreme thinness maximizes surface area, and thus catalytic efficiency, without increasing the weight or volume of the unit or its resistance to air flow. Variations on this alloy are being produced by others, but Aluchrom apparently has the greatest life.

Planetary Rolling

by Atlas Steels Limite

Hot Strip Mills for Thin Slab Continuous Casting Systems

by Michael G. Sendzimir

Lubrication of Sendzimir Mills

From the third annual meeting of the Lubrication and Wear Group, October 1964

Michael Sendzimir Bio

All about former President and son of founder Tadeusz, Michael G. Sendzimir

Lubrication: A Technical Publication Devoted to the Selection and Use of Lubricants

Published by the Texas Company, Texaco Petroleum Products

Sendzimir Controlled Collapse Winder

by John W. Turley