Plug Welding cont'd - s1029cn0093

DOE-STD-1029-92

Appendix B

SOP-618-4

Revision 0

Approved October 22, 1991

Page 10 of 16

PLUG WELDING (continued)

IF the plug piece is not clean,

[6]

THEN wipe the cone base off with an alcohol moistened cotton swab.

[7]

Visually verify that both the welder base plate and fixture surface are

free of foreign materials.

[8]

Visually verify the plug and the weld area on the reservoir are clean.

[9]

IF the plug and weld area are not clean,

THEN clean with a cotton swab moistened with alcohol

AND purge area with dry nitrogen.

NOTE

Section 3.2 of this procedure contains information on fixture numbers.

[10]

Install the reservoir in the appropriate fixture.

[11]

Apply <300 lbf to the welder by backing the nitrogen regulator out

until the heise gage reads zero.

[12]

Adjust the motion transducer to 0.4000 (acceptable range of 0.3995 - 0.4005)

on the motion readout.

[13]

Apply 1000 lbf (acceptable range of 9950 lbf - 1050 lbf) by opening the

nitrogen pressure valve to the welder piston rams.

B - 11