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13903 Norby Rd. Grandview, MO 64030 |
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Phone: 816-966-8717 Fax: 816-761-3463 E-mail: remco@rollerequipment.com |
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Old and New Techniques for Strip Building |
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©June 2008 |
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Rollmaster news™ Email UPDATE Copyright © 2008 by Roller Equipment Mfg. Co., Inc. All rights reserved
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It’s been 22 years since a REMCO article titled “Roll covering Equipment, Techniques and Current Problems” was published in Rubber World Magazine. The article compared the strip building technique for covering rollers to other methods that include calendared sheet building, manual strip building, pre-cured tube building and crosshead building. At that time, strip building was in its infancy and was just beginning to gain acceptance as a viable method for covering rollers. There were many questions about the relatively new process since previous new covering methods had yielded more problems than solutions. With the help of experienced rubber compounders, better equipment for extrusion, and new application techniques, the method survived and has become the preferred method for covering rollers. Early quality concerns changed to quality advantages and new end uses beyond rollers became known. Using hot tacky extruded rubber in strip form radially wrapped around a cylindrically shaped object seemed to offer strength advantages not found in calendared sheet built parts. Other methods lacked bonding abilities, severe quality issues or size limitations when compared to the strip building process. In over 35 years in development, what major breakthroughs not mentioned in the December, 1986 Rubber World Article have come forward? Of the strip building techniques discussed in the article, the advantages of using the ‘flat’ method vs. ‘angle’ still remain true and the ‘flat’ application techniques illustrated have helped the system gain |
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Diagram stackbuilding©roller equipment Mfg. Co., inc. |
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By Dean Armstrong, President & Founder |