Military
Specification
|
MIL-B-7883
|
MIL-STD 645
|
Brazing
Temperatures
|
Pre-heating -
Approximately
1000°F
|
Salt Bath Immersion -Approximately
1100°F
|
|
In compliance with the latest environmental codes, individual
components are chemically cleaned of all oxidization and
other contaminants.
|
|
Brazeable
Aluminum Alloys
|
Alloy
|
Brazeability Rating
|
Heat Treatable
Yes No
|
|
6061
|
A Good
|
X
|
-
|
6063
|
A Good
|
X
|
-
|
6951
|
A Good
|
X
|
-
|
1100
|
A Good
|
-
|
X
|
3003
|
A Good
|
-
|
X
|
7072
|
A Good
|
-
|
X
|
3004
|
B Fair
|
-
|
X
|
7005
|
B Fair
|
X
|
-
|
5052
|
C Poor
|
-
|
X
|
6151
|
C Poor
|
X
|
-
|
|
Due to the custom nature and complexity of our customer
requirements, skilled technicians pre-assemble the components
prior to dip brazing.
|
|
ALL ALLOYS NOT LISTED ABOVE
ARE
CONSIDERED NON-BRAZEABLE.
Brazing alloys are available in sheet form, powder form, rod
form and clad sheet.
NOTE: The tack welding
alloy recommended for aluminum dip brazing is type 1100.
Brazeable
Casting Alloys (MIL-C-11866
SPECS)
|
Alloy
|
Brazeability Rating
|
C 712
|
A Good
|
D 712
|
A Good
|
A 712
|
B Fair
|
|
Precision
controls for our pre-heat ovens and the Upton Electric
Brazing Furnace provide accuracies of ±4°F
of set points. Operating temperatures are continuously chart
recorded.
|
|
*Nominal
Joint Clearances
|
.0015 - .003 Per Side
|
.003 - .006 On Widths and Diameters
|
* These tolerances are recommended for proper capillary action and uniform brazed
joints.
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|
| A final quality control check for mechanical dimensions
and brazing integrity is verified through stringent Q.C.
inspection procedures. |
|
