[Design of gas and electric rotary furnaces for the glass industry]. Quarterly progress report, September 20--December 20, 1997

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The authors have continually stressed that the two most critical material parameters for the success of the rotary furnace are the hearth plate and the molding release powder. Both of these issues have been solidly addressed in this quarter. They have tested the three best candidates for hearth plate material this quarter. Although they had to use the in-house gas furnaces for the testing, one of the materials combines the best heating efficiency with the least sticking tendency. This material will be used for the electric prototype. The molding release powder is mainly used for preventing the glass from adhering ... continued below

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4 p.

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Pochan, D. December 31, 1997.

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Description

The authors have continually stressed that the two most critical material parameters for the success of the rotary furnace are the hearth plate and the molding release powder. Both of these issues have been solidly addressed in this quarter. They have tested the three best candidates for hearth plate material this quarter. Although they had to use the in-house gas furnaces for the testing, one of the materials combines the best heating efficiency with the least sticking tendency. This material will be used for the electric prototype. The molding release powder is mainly used for preventing the glass from adhering to the hearth plate while the glass is softening for pressing. They recently visited several companies in Japan who also repress glass. The release agent that they use is Boron Nitride. They have identified a supplier within New York state, but their concern is the very high price of this material. They are bringing in samples of different grades for experimentation, but the focus continues to be to eliminate the need for any powder. An additional area for material testing was addressed during this quarter. Once the glass is in the tool (mold) for pressing, the glass has the potential to adhere to the metal that the tool and die are made from (usually steel). Both the powder and a spraying of a carbon product are currently used to reduce this problem. Alternate materials for the tooling and/or surface coatings of the steel need to be identified and tested. During this quarter, they conducted some off-site test runs on two candidate coating materials: platinum and titanium.

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4 p.

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OSTI as DE98003243

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  • Other Information: PBD: [1997]

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  • Other: DE98003243
  • Report No.: DOE/EE/15680--T2
  • Grant Number: FG01-97EE15680
  • DOI: 10.2172/584866 | External Link
  • Office of Scientific & Technical Information Report Number: 584866
  • Archival Resource Key: ark:/67531/metadc690568

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  • December 31, 1997

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • Nov. 12, 2015, 11:43 p.m.

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Pochan, D. [Design of gas and electric rotary furnaces for the glass industry]. Quarterly progress report, September 20--December 20, 1997, report, December 31, 1997; United States. (digital.library.unt.edu/ark:/67531/metadc690568/: accessed July 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.