开云体育

looking for a suggestion on small chamber

Rocky All Messages By This Member #3796 I have several A/C compressor housings out back and it occurred to me that if I could cut them in half a make a good seal they would make a good chamber. Does anyone have any suggestions on how to make a sealing surface after I cut them in half at the equator? Russell
Rocky All Messages By This Member #3798 Thanks, Thomas. ?I was thinking about the flange but was going to make the wall flush. Glad you mentioned that. ?Now does one leave the wall proud on both the top and bottom section such that the flanges won't close all the way? ?If so then I am guessing that the O-ring will get crushed. No need to make a groove for the O-ring? Thanks again, Russell
Rocky All Messages By This Member #3799 Thomas, Another question occurred to me. ?Do you design the O-ring size and proudness of the wall(s) so that there is a gap between the top and bottom wall or do you?squeeze?the flanges until the wall edges touch? Thanks, Russ
Thomas Janstrom All Messages By This Member #3797 开云体育 Hi Russell, You'd need to put a flange on both halves and then clamp an O-ring between them, Weld them on a touch below the lip so that the O-ring actually seats against the wall and not the flange (the flange is the back stop, the seal surface is the wall). Kind a like =\| where the seam and the O-ring both are found between the horizontals of the equals sign if that makes sense? You can then clamp the halves together either with C clamps or a bolt together system as you wish. Keep the seal surfaces REALLY clean and shiny and you should get a good seal. Though you may need to tinker with the idea a bit for optimal results. Cheers, Thomas. On 18/10/2012 5:33 PM, Rocky_Beech wrote: toggle quoted message Show quoted text ? I have several A/C compressor housings out back and it occurred to me that if I could cut them in half a make a good seal they would make a good chamber. Does anyone have any suggestions on how to make a sealing surface after I cut them in half at the equator? Russell
Thomas Janstrom All Messages By This Member #3800 开云体育 Sorry I didn't get to this sooner (my year end finals start Monday).... You want the edge to be proud enough to keep the O-ring from catching on the lip, but also such that there is room to give the O-ring a good squeeze. (they don't need to meet, but they will as you pump down anyway) If you feel the need, and have a lathe or mill big enough then a groove to secure the O-ring won't go astray, but I have a bell jar (16" ID x 25" tall) that has the lip ~3/8" high before the flange, I use a 1/2" thick viton O-ring, I tighten down till I can anymore, but after pump down the lock downs are all lightly loose anyway. Thomas. On 21/10/2012 4:32 AM, Russ Thornton wrote: toggle quoted message Show quoted text ? Thomas, Another question occurred to me. ?Do you design the O-ring size and proudness of the wall(s) so that there is a gap between the top and bottom wall or do you?squeeze?the flanges until the wall edges touch? Thanks, Russ

Previous Topic Next Topic