[labnetwork] Bending coaxial

[Vito Logiudice]

Hi Matt,

Excellent comments to date from our colleagues on the network, as usual. FYI, this is the approach we took here as well for all of our toxics. As already mentioned, special attention was paid to the radius of the bends to minimize the impact on the interior electropolished finish and coupons were also made at the start of each shift daily to confirm the quality/calibration of the welding apparatus and procedure before proceeding. In our case, we did use a few mechanical connections for the 1/2 outer lines, so called "dogbones", examples of which can be seen in the attached photo.

Cheers,
Vito
--
Vito Logiudice  MASc, PEng
Director of Operations, Quantum NanoFab
University of Waterloo
Lazaridis QNC 1207
200 University Avenue West
Waterloo, ON           Canada N2L 3G1
Tel.: (519) 888-4567  ext. 38703
Email: vito.logiudice at uwaterloo.ca<mailto:vito.logiudice at uwaterloo.ca>
Website: https://fab.qnc.uwaterloo.ca


From: "<Matthieu Nannini>", Matthieu Nannini <matthieu.nannini at mcgill.ca<mailto:matthieu.nannini at mcgill.ca>>
Date: Tuesday, 16 December, 2014 11:33 PM
To: "labnetwork at mtl.mit.edu<mailto:labnetwork at mtl.mit.edu>" <labnetwork at mtl.mit.edu<mailto:labnetwork at mtl.mit.edu>>
Subject: [labnetwork] Bending coaxial

Dear colleagues,

A local company is proposing to bend coaxial SS tubing to install a double containment gas line thus removing the need for welded 90° elbows. did you ever see that ? Any comment would be helpful !

Thanks

Matthieu Nannini

Début du message réexpédié :

De: "Matthieu Nannini, Dr." <matthieu.nannini at mcgill.ca<mailto:matthieu.nannini at mcgill.ca>>
Objet: Bending coaxial
Date: 15 décembre 2014 15:31:10 UTC-5
À: Tom Britton <tbritton at criticalsystemsinc.com<mailto:tbritton at criticalsystemsinc.com>>

Hi tom,

A local company here can bend coaxial tubing. They quoted me 4800$ for the 2 lines BCl3 and SiCl4.

What do you think of bending ? They told me the 1/4 wasn’t kinked at all.

Matthieu


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