Chapter 7. Steps Toward the Solution of the Tin Bath Block Peeling problem in Float Glass Lines

  1. John B. Wachtman Jr
  1. Hans Petschauer,
  2. Helmut Ebigt and
  3. Guenter Froehlich

Published Online: 26 MAR 2008

DOI: 10.1002/9780470314661.ch7

A Collection of Papers Presented at the 55th Conference on Glass Problems: Ceramic Engineering and Science Proceedings, Volume 16, Issue 2

A Collection of Papers Presented at the 55th Conference on Glass Problems: Ceramic Engineering and Science Proceedings, Volume 16, Issue 2

How to Cite

Petschauer, H., Ebigt, H. and Froehlich, G. (1995) Steps Toward the Solution of the Tin Bath Block Peeling problem in Float Glass Lines, in A Collection of Papers Presented at the 55th Conference on Glass Problems: Ceramic Engineering and Science Proceedings, Volume 16, Issue 2 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314661.ch7

Author Information

  1. VGT-DYKO Refractories, Germany

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1995

ISBN Information

Print ISBN: 9780470375358

Online ISBN: 9780470314661

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Keywords:

  • formation;
  • diffusivity;
  • nephelite;
  • formation;
  • multitude

Summary

Based on extensive investigations on used tin bath blocks and tin bath block “peelings,” theoretical reflections lead to the most probable causes of the formation of peelings. Following this, Glaverbel has formulated its conception of how to combat the peeling by avoiding deep alkali penetration into the blocks.Once this is achieved, flakes will not come off any more. Based on this, VERRAL40FT has been developed, a material that meets the stipulated requirement, but at the same time also accomplishes all the other property requirements concerning elasticity to avoid floaters and low H2 diffusivity to avoid bottom bubbles. Since early 1987 when VERRAL40FT was put into operation for the first time in the hot end of one of Glaverbel's float lines, several other float lines have been equipped at the hot ends with this new type of tin bath block. They all perform very well Not one failure has been reported to date.