Method for cleaning metal parts with elemental fluorine

Details Method for cleaning metal parts with elemental fluorine Method for cleaning metal parts with elemental fluorine

1978-02-02

1980-02-12

Fisher, Richard V.

Cleaning and liquid contact with solids

Processes

For metallic, siliceous, or calcareous basework, including...

134 11, 134 19, 134 31, 134 37, 228206, B08B 500

Patent

active

041882377

ABSTRACT:
The method for cleaning damaged metal parts, particularly crack damaged gamma prime hardened nickel alloy parts, in order to render them repairable by brazing. The method makes use of elemental fluorine as the primary cleaning material. A reducing gas such as hydrogen may be present. The preferred source of elemental fluorine is by thermal decomposition of a fluorocarbon resin. The cleaned part has a surface layer free of oxides and depleted of aluminum and titanium. It is brazable.

REFERENCES:
patent: 2571328 (1951-10-01), Baker et al.
patent: 2585819 (1952-02-01), Moore et al.
Watson et al, "Decomposition Temperatures . . . " Bureau of Mines Report of Investigations 4756, U.S. Dept. of Interior, Dec. 1950.
"Brazing Stainless Steel in a Stable Reducing Atmosphere of Fluoride", AWS Meeting-Philadelphia, Apr. 1977.

Affiliated with

Also associated with

Rating

Method for cleaning metal parts with elemental fluorine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for cleaning metal parts with elemental fluorine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for cleaning metal parts with elemental fluorine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1853756