Chapter 34. Coating Wire Grills and Racks with Porcelain Enamel Powder

  1. John B. Wachtman Jr.
  1. Roy M. Binkley

Published Online: 26 MAR 2008

DOI: 10.1002/9780470310540.ch34

Proceedings of the 50th Porcelain Enamel Institute Technical Forum: Ceramic Engineering and Science Proceedings, Volume 10, Issue 5/6

Proceedings of the 50th Porcelain Enamel Institute Technical Forum: Ceramic Engineering and Science Proceedings, Volume 10, Issue 5/6

How to Cite

Binkley, R. M. (1989) Coating Wire Grills and Racks with Porcelain Enamel Powder, in Proceedings of the 50th Porcelain Enamel Institute Technical Forum: Ceramic Engineering and Science Proceedings, Volume 10, Issue 5/6 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470310540.ch34

Author Information

  1. Feldkircher Wire Fabricating Co. Nashville, TN

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1989

ISBN Information

Print ISBN: 9780470374856

Online ISBN: 9780470310540

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Keywords:

  • coating wire grills;
  • racks with porcelain;
  • enamel powder;
  • automatic welders;
  • rinse stages

Summary

Wire grills and racks are coated with powder porcelain on a line installed in 1987 that used the same tooling on the process line and in the furnace. Parts are transferred from the process line to the furnace line using the same tooling. Running the tooling through the furnace eliminated problems of loose powder and cleaning tools. The wire is die-formed from hot-rolled rod. Automatic welders assemble the wire into the grills and racks. The pickle-free washer includes three cleaner stages and three rinse stages. Powder is applied by fixed guns, each with separate controls. The ware is fired at 1510°-1515°F. Finished parts are inspected and wrapped individually for shipping. The tooling has a distinct edge that supports the ware, minimizing tool marks.