TriMetal™ Aluminum/Stainless Steel Transitions
Reliable Sealing Solutions for Aluminum Chambers and Equipment
![[TriMetal Flanges]](/Legacy/graphics/tb_group.gif)
TriMetal Transitions
TriMetal
transitions are used to provide the reliable all-metal seal of the standard
stainless steel CF flange on aluminum vacuum chambers.
Explosively bonded material.
TriMetal is an explosively bonded material made up of three metals. Aluminum
and stainless steel are joined together with an interlayer of tantalum. From
this material, transitions are made for integrating stainless steel and aluminum
components on vacuum systems.
Easy to weld. Thermionics new
TriMetal Transition tubes are easier to weld because the Tantalum interlayer
has a higher melting point than TriBond's copper/titanium interlayer.
Better value. TriMetal
Aluminum to Stainless Steel transition tubes are a better value than buying
flanges made of the same explosively bonded material.
TriMetal transitions and
half nipples eliminate the risk of leaks associated with using aluminum-to-aluminum
or aluminum-to-stainless steel flange assemblies on aluminum chambers.
Click here for more information on explosive bonding.
Click here for pricing.
![[TBF-275-150/N]](/Legacy/graphics/tribond.gif)
TriMetal CF Half Nipples
The TriMetal CF half nipple is a TriMetal tube attached to a standard stainless
steel CF flange. The aluminum end is ready to be welded directly to an aluminum
chamber. The stainless steel flange end is ready to be mated to another standard
stainless steel CF flange.
UHV Certified
Prior to machining the transitions, the TriMetal material must pass the following
tests:
- ultrasonic
- dye-penetrant
- chisel
- bend
- ram tensile
Each TriMetal transition is thermally cycled to over 300°C, then helium leak-tested
to a sensitivity of 5 x 10-10 std cc He/sec.
TriMetal PyraFlat Half Nipples
PyraFlat flanges
are Thermionics' line of rectangular and odd-shaped all-metal flanges. PyraFlat
flanges employ the same reliable sealing principle as CF flanges. The PyraFlat
flange has been used successfully at synchrotron facilities for over 10 years.
TriMetal transition tubes are available
for attachment to PyraFlat flanges. This allows the use of the reliable seal
of the standard stainless steel PyraFlat flange assembly for rectangular ports
on aluminum beamlines or chambers.
Ordering Information
TriMetal
Transitions and Half Nipples --Ordering Information
![[Drawing]](/Legacy/graphics/tb-dwg.gif) |
| |
Flange O.D. |
A |
B |
C |
D |
E |
Style |
Model No. |
Price |
| Mini Flanges |
1.33"
|
0.50"
|
0.75"
|
2.20"
|
1.00"
|
--
|
Nonrotatable
|
ATS-133-075/N |
Contact |
|
Nonrotatable Tapped
|
ATS-133-075/NT |
Contact |
|
Rotatable
|
ATS-133-075/R |
Contact |
|
Rotatable Tapped
|
ATS-133-075/RT |
Contact |
|
Transition Only
|
--
|
0.50"
|
0.75"
|
--
|
1.00"
|
.75"
|
without flange
|
ATS-075 |
Contact |
|
| 2-3/4" Flanges |
2.75"
|
1.25"
|
1.50"
|
1.91"
|
1.75"
|
--
|
Nonrotatable
|
ATS-275-150/N |
Contact |
|
Nonrotatable Tapped
|
ATS-275-150/NT |
Contact |
|
Rotatable
|
ATS-275-150/R |
Contact |
|
Rotatable Tapped
|
ATS-275-150/RT |
Contact |
|
Transition Only
|
--
|
1.25"
|
1.50"
|
--
|
1.75"
|
1.505"
|
without flange
|
ATS-150 |
Contact |
|
| 4-1/2" Flanges |
4.5"
|
2.25"
|
2.50"
|
2.08"
|
2.75"
|
--
|
Nonrotatable
|
ATS-450-250/N |
Contact |
|
Nonrotatable Tapped
|
ATS-450-250/NT |
Contact |
|
Rotatable
|
ATS-450-250/R |
Contact |
|
Rotatable Tapped
|
ATS-450-250/RT |
Contact |
|
Transition Only
|
--
|
2.25"
|
2.50"
|
--
|
2.75"
|
2.505"
|
without flange
|
ATS-250 |
Contact |
|
| 6" Flanges |
6.00"
|
3.75"
|
4.00"
|
2.14"
|
4.25"
|
--
|
Nonrotatable
|
ATS-600-400/N |
Contact |
|
Nonrotatable Tapped
|
ATS-600-400/NT |
Contact |
|
Rotatable
|
ATS-600-400/R |
Contact |
|
Rotatable Tapped
|
ATS-600-400/RT |
Contact |
|
Transition Only
|
--
|
3.75"
|
4.00"
|
--
|
4.25"
|
4.005"
|
without flange
|
ATS-400 |
Contact |
|
| 8" Flanges |
8.00"
|
5.75"
|
6.00"
|
2.20"
|
6.25"
|
--
|
Nonrotatable
|
ATS-800-600/N |
Contact |
|
Nonrotatable Tapped
|
ATS-800-600/NT |
Contact |
|
Rotatable
|
ATS-800-600/R |
Contact |
|
Rotatable Tapped
|
ATS-800-600/RT |
Contact |
|
Transition Only
|
--
|
5.75"
|
6.00"
|
--
|
6.25"
|
6.005"
|
without flange
|
ATS-600 |
Contact |
|
| 10" Flanges |
10.00"
|
7.75"
|
8.00"
|
2.20"
|
8.25"
|
--
|
Nonrotatable
|
ATS-1000-800/N |
Contact |
|
Nonrotatable Tapped
|
ATS-1000-800/NT |
Contact |
|
Rotatable
|
ATS-1000-800/R |
Contact |
|
Rotatable Tapped
|
ATS-1000-800/RT |
Contact |
|
Transition Only
|
--
|
7.75"
|
8.00"
|
--
|
8.25"
|
8.005"
|
without flange
|
ATS-800 |
Contact |
Explosive
Bonding
Explosive bonding is an
effective means of joining dissimilar metals. The high pressure of the explosion
creates an abrupt, uniform metallurgical bond at the interface of the joined
metals. The bonded material retains each of the bonded metals' initial physical
and mechanical properties.
Diffusion bonding, roll
bonding and brazing all fall short of the quality of an explosive bond. In these
other metal-joining processes, areas of the transition may form brittle intermetallic
layers or there may be unpredictable areas of void in the bond line. In UHV
components, the inconsistencies in this type of bonded material can become leak
failures.
Explosively bonded material--with
its strong uniform bonds--will not leak and therefore is an excellent choice
for integrating components of various metals in a vacuum system.
|