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Entry  Tue Nov 12 17:44:39 2019, Raymond, DailyProgress, Cryo vacuum chamber, Tank Update IMG_0258.JPGIMG_0257.JPGIMG_0259.JPG
    Reply  Thu Nov 21 21:58:27 2019, Raymond, DailyProgress, Cryo vacuum chamber, Tank Update IMG_0490.JPGIMG_0491.JPGDiaphragmAdapt.pdf
Message ID: 2455     Entry time: Thu Nov 21 21:58:27 2019     In reply to: 2444
Author: Raymond 
Type: DailyProgress 
Category: Cryo vacuum chamber 
Subject: Tank Update 

Update of our available electrical feedthroughs:

2 x 19 pin round with corresponding internal connectors and external connectors

2 x 15 D sub 

- re-tapped the PEEK support pieces to 1/4-20 to match the bottom of the tank, added them with vented socket set screws. These will need to be replaced with brass or aluminum to better match thermal contraction (steel screws likely to crack the PEEK upon cooling)

- Drilled holes (attached, highlighted in orange) in the pump station base in order to utilize the more robust shock absorbers that came with the oil pump. 

- Noticed significant flaking of the nuts/bolts when removing the tank lid. Suggested using anit-seize compound on the tank lid bolts but Chris advised against anything lube-like on the system. Just a note to remember to check the integrity of the bolts going forward before tightening the lid to avoid bolt seizing. 

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Attachment 3: DiaphragmAdapt.pdf  1.398 MB  | Hide | Hide all
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