Apparatus for electropolishing of helix used for a microwave tub

Details Apparatus for electropolishing of helix used for a microwave tub Apparatus for electropolishing of helix used for a microwave tub

1998-01-12

1999-10-26

Valentine, Donald R.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204241, 204272, 204273, 204274, C25F 700

Patent

active

059721804

ABSTRACT:
An apparatus for electopolishing a helix used for a traveling wave tube has the following structure. A bath is provided which receives an electrolyte solution for etching the helix. A holder is further provided for holding the helix in the electrolyte solution without any displacement or any vibration, wherein a part of the helix is electrically connected to an anode. A controller mechanically supporting a cathode is provided for moving the cathode around the helix at substantially a constant speed in a direction substantially parallel to a longitudinal direction of the helix so as to keep a distance of the cathode from the helix to be substantially constant.

REFERENCES:
patent: 638917 (1899-12-01), Emerson
patent: 4434039 (1984-02-01), Baboian et al. et al.
patent: 5112438 (1992-05-01), Bowers

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