Relating to filament coating

Details Relating to filament coating Relating to filament coating

1990-02-15

1991-08-20

Beck, Shrive

Coating processes

Immersion or partial immersion

Molten metal or fused salt bath

4274346, 4274432, 164461, B05D 118

Patent

active

050413147

ABSTRACT:
Known methods of melting Titanium and its alloys for the purpose of sheathing a ceramic filament include the premelting of the metal in a crucible. This method results in contamination of the metal. The present invention obviates the crucible and instead positions a rod of solid Titanium or an alloy thereof adjacent the filament and locally heats the end of the rod. The melt continuously coats the filament which is then traversed laterally of the rod. The method is employed in an inert atmosphere and contamination is thus avoided. In a preferred embodiment, a computer controls the rate of melting of the rod, the movement of the rod, and the lateral movement of the filament.

REFERENCES:
patent: 1654509 (1927-12-01), Claus
patent: 3451847 (1969-06-01), Ashpole et al.
patent: 3776297 (1973-12-01), Williford et al.
patent: 4172162 (1979-10-01), Danzey, Jr.
patent: 4782884 (1988-11-01), Siemers

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