December 2, 2008
By: Albert Klimas
Many seamless tube producers in North America use cross-roll piercing mills built in the 1950s that were based on designs from the1930s. While it would be advantageous to replace such aged equipment, that isn't always necessary. A minor equipment upgrade can do wonders. Improving the bar steadiers—the devices that hold the mandrel the steady as the pipe exits the mill—can greatly improve the mill's output and reduce the pipe's wall thickness variation.
Norton NorZon® Plus depressed center wheels now utilize a proprietary blend of patented, newest generation Norton SG ceramic alumina and Norton BlueFire™ zirconia alumina abrasives, combined with a high performance bond system for significantly improved grain micro-fracturing. The upgraded line has also been expanded with Norton NorZon Plus Fast Cut™ Depressed Center Wheels, offering the fastest material removal in the industry.
From the Web: Blacksmithing, 3D printing, and an immigration nightmare stymies a shop’s growth - by Vicki Bell
Highlights for fabricators from the past week’s Web articles— Immigration nightmare stymies company’s growth/job creation; imagination an important tool in blacksmith’s arsenal; ultimate use of 3D printing; fabricator gives in many ways; and veterans trade combat helmets for welding helmets.
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