Procedure for sealing leaks in closed cooling systems

Details Procedure for sealing leaks in closed cooling systems Procedure for sealing leaks in closed cooling systems

1974-08-07

1976-03-30

Kendall, Ralph S.

Coating processes

Restoring or repairing

Metal article

21 27R, 252 72, 427437, 427438, 106 33, C09K 312, B32B 1500

Patent

active

039476103

ABSTRACT:
Leaks in closed cooling systems containing an aqueous medium as the coolant, are sealed by electroless deposition of a metal or metal containing compound from a water soluble, easily reducible metal compound. A complexing agent may be added to the coolant to assist in solubilizing the easily reducible metal compound. In one embodiment, the reducible metal compound is formed in situ by attacking the conduit walls of the cooling system so as to form solubilized compounds, or compounds which can be solubilized by addition of suitable complexing agents.

REFERENCES:
patent: 3532519 (1970-10-01), Hirohata et al.
patent: 3709712 (1973-01-01), Rossman
patent: 3850657 (1972-09-01), Bodmer et al.

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