Talk:O-ring
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[edit] Pressure, Temperature, Storage
Q1: (unknown author on this talk page) What is the maximun resistance pressure and temperature? A1: This varies widely by O-ring material and joint design, and also depends (as you might expect) on the lifespan during which you need the O-ring to seal. For common O-ring elastomers, max temps may be expected to be between 100 and 200 degC, with max pressures between 500 and 5000 kPa. Unclben 23:53, 29 October 2006 (UTC)
Q2: (unknown author on this talk page) If they are exposed to high temperatures or burnt, what gases are emitted? How can they best be stored? A2: Emitted gases will vary wildly by material (especially plasticizers and other low-molecular-weight components). Rubber O-rings are best stored in mild temperatures (room temp) and low humidity. The seals should be in airtight containers that block UV light. In such conditions, you may assume that the O-rings can be stored for many years with no ill effects. In a more typical warehouse environment, a reasonable guess would be 6-12 months as an acceptable shelf-life. Unclben 23:53, 29 October 2006 (UTC) Storage conditions and shelf-life periods for vulcanised rubber products (including o-rings) are given in BS ISO 2230:2002 (previously BS3574). Shelf life can be from 5 to 10 years from date of cure (vulcanisation) depending on the base elastomer. --GeordieMG 09:02, 8 August 2007 (UTC)
[edit] Reference
I have a pdf file of the O-ring patent US2180795. I think it should be included or at least linked to, but I don't know how to execute such a thing?
- you can add a link to an online source of the pdf file, or to the the US patant office copy (alternatiff plugin required to view) --Duk 19:57, 29 April 2006 (UTC)
[edit] copyright
the recent edit by Jerry Whitlock - The Seal Man™ was copied from http://www.epm.com/seal_failure_analysis.htm. I've sent an email requesting confirmation that the edit was made by the copyright owner (and was therefore a GFDL release). --Duk 20:23, 29 April 2006 (UTC)
- reverted copyvio--Duk 12:17, 4 May 2006 (UTC)
[edit] O-ring or o-ring?
Just wondering, the article seems to be a little inconsistent. :) 68.183.57.34 08:00, 5 September 2006 (UTC)
- I was going to post the same comment. :) -65.30.187.109 13:52, 7 September 2006 (UTC)
- I've used (and seen used) both styles. I generally prefer to use the capital 'O'. The downside is that you create what appears to be a proper noun but that really isn't. The upside is that you gain consistency among torodial seal cross-sections by using capital letters - the key being D-rings, which look like a capital 'D' rather than a lowercase 'd'. O-rings and X-rings are the other prominent letter-shaped sections, but they obviously look the same between upper and lowercase. Unclben 00:54, 11 September 2006 (UTC)
- I visited the link to lutzsales. Why are they using widipedia as their marketing advertising board? -65.30.187.109 13:52, 7 September 2006 (UTC) I'm really sick of the lutzsales spamming in this article, but I don't have the energy to grab better references right now. Unclben (talk) 16:55, 1 March 2008 (UTC)
[edit] Challenger O-ring Material
Was the elastomer used on the Challenger actually Viton? The congressional report http://www.gpoaccess.gov/challenger/64_420.pdf calls it "fluorocarbon elastomer", and excerpted statements by Thiokol engineers seem to be an improper or informal use of a trademarked name. I suggest we replace it with the generic term FKM, specifically Type I FKM. Delmlsfan (talk) 20:14, 17 November 2007 (UTC)
Yes, Viton is DuPont's trade name for their FKM line, but it's widely used in industry as synonymous with FKM (like Kleenex, or Coke in the southern US). I have no idea whether Challenger O-rings were actually Viton or not, and I doubt anybody else here does either. We should definitely replace with 'FKM'. Unclben (talk) 16:54, 1 March 2008 (UTC)
[edit] how to make an o-ring
can anybody tell me how to make an o-ring.i have to make an assigntment about this subject —Preceding unsigned comment added by 203.12.220.238 (talk) 01:44, 8 December 2007 (UTC)
[edit] "PLEASE LIST DETAILS FOR BACK UP RINGS, DYNAMIC AND STATIC SEALS"
Can anybody put details up for Backup rings, Dynamic seals and semi dynamic seals. —Preceding unsigned comment added by 217.34.57.129 (talk) 16:32, 14 January 2008 (UTC)
