Accession Number:

AD0621911

Title:

REPAIRING THICK-WALLED HIGH-PRESSURE VESSELS BY ELECTRIC ARC WELDING,

Descriptive Note:

Corporate Author:

DIRECTORATE OF SCIENTIFIC INFORMATION SERVICES OTTAWA (ONTARIO)

Personal Author(s):

Report Date:

1964-12-01

Pagination or Media Count:

7.0

Abstract:

A welding technique is described for weld build-up of damaged areas in thick-walled vessels and to restore reaction columns and heat exchangers. Three columns and a heat-exchanger were kept under observation during one operating year. The equipment worked at a pressure of 280-300 atmospheres and a temperature of 350-390C inside the reaction columns and 200-350C in the heatexchangers. According to the readings of surface thermocouples the temperature of the outer walls of the apparatus fluctuated within the limits 160-220C. Only in some units was there observed a local overheating to temperatures 250-300C. Visual examinations showed that no visible defects whatever had developed in the repaired areas on the vessel walls.

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE