Chemical cleaning system

Details Chemical cleaning system Chemical cleaning system

1986-02-13

1988-09-13

Hornsby, Harvey C.

Cleaning and liquid contact with solids

Apparatus

With means for collecting escaping material

134111, 134 94, 134166R, B08B 308

Patent

active

047701960

ABSTRACT:
A vacuum metallizing chamber cleaning procedure isolates the vacuum pumping system from the chamber, closes the chamber, sprays the interior of the closed chamber with water, then sprays the chamber with a caustic solution for a predetermined period dissolving aluminum deposits, then sprays with a neutralizer, and then sprays to rinse with water. Hydrogen is exhausted outside the building. The chamber is constantly drained during spraying. Caustic and neutralizer are recirculated. The sludge generated and removed during the cleaning operation is pumped from the bottom of a caustic holding tank to a settling tank for settling and subsequent re-use of the clear caustic solution.

REFERENCES:
patent: 2239452 (1941-04-01), Williams et al.
patent: 3046163 (1962-07-01), Kearney et al.
patent: 3400687 (1968-09-01), Lueck
patent: 3435834 (1969-04-01), Cooper
patent: 4138306 (1979-02-01), Niwa
patent: 4173493 (1979-11-01), Kallas
patent: 4311735 (1982-01-01), Young
patent: 4361418 (1982-11-01), Tscheppe
patent: 4407316 (1983-10-01), Ihringer
patent: 4409999 (1983-10-01), Pedziwiatr
patent: 4530131 (1987-07-01), Zell
patent: 4660585 (1987-04-01), Schoenhard

Affiliated with

Also associated with

Rating

Chemical cleaning system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Chemical cleaning system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chemical cleaning system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-800920