Method for repairing a cracked metal part using repair plugs coa

Details Method for repairing a cracked metal part using repair plugs coa Method for repairing a cracked metal part using repair plugs coa

1993-05-18

1994-08-30

Rosenbaum, Mark

Metal working

Method of mechanical manufacture

Repairing

2940209, 29530, B23P 604

Patent

active

053415540

ABSTRACT:
An improvement to the method for repairing a cracked metal wall commonly known as cold welding, which is accomplished by inserting metal locks across a crack to join the metal on opposite sides of the gap, and then inserting repair plugs which act as plugs to fill the gap and simultaneously pre-stress the inserted locks. The improvement comprises the use of repair plugs which have been coated with an electro-deposited layer of zinc. The zinc layer improves the sealing capability of the repair plugs, and is thereby advantageous for repairing cracks in the pressure areas of engine blocks or other vessels, containers or housings which contain fluids under pressure.

REFERENCES:
patent: 2998645 (1961-09-01), Diperstein
patent: 4247973 (1981-02-01), Diperstein
patent: 4599781 (1986-07-01), Diperstein
patent: 4640052 (1987-02-01), Zebedee et al.
patent: 4662806 (1987-05-01), Reed

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