Thermally treating articles with particulate material and appara

Details Thermally treating articles with particulate material and appara Thermally treating articles with particulate material and appara

1980-10-20

1982-06-01

Kellogg, Arthur D.

Glass manufacturing

Processes

Glass preform treating

65348, 65349, 34 10, 16510416, 16510418, 16510434, C03B 2700

Patent

active

043326056

ABSTRACT:
The invention provides a method and apparatus for treating articles with particulate material, for example for thermally toughening glass sheets. The particulate material consists of or contains permanently magnetized particles and is subjected to an electromagnetic field which travels linearly through the treatment space and is effective to sustain a dispersion of the particulate material in the treatment space. The article is contacted with that dispersion.

REFERENCES:
patent: 4113458 (1978-09-01), Cross
patent: 4115927 (1978-09-01), Rosensweig
patent: 4272893 (1981-06-01), Levenspiel et al.

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