Tungsten-quartz seals

Details Tungsten-quartz seals Tungsten-quartz seals

C - Chemistry, Metallurgy

25

F

49/78, 204/86.5,

C25F 3/08 (2006.01) H01J 9/32 (2006.01)

Patent

CA 1230077

-5- ABSTRACT Tungsten-to-quartz seals are improved by electrochemically machining drawn, ground tungsten rod until some of the original draw lines appear and then using the so treated rod in the seal formation. The machining is carried out in a solution of NaNO2; NaOH; and H2O.

446096

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