Talk:Ultra-high vacuum

message: The UHV manipulator paragraph is pretty incoherent and probably refers to a specific, non-conventional piece of equipment that the writer has experience with. Maybe it should be cleaned up and generalized (in which case it should get its own page), or just deleted.
:This section has been rewritten to make it more generalized and coherent. Wildbear (talk) 19:32, 12 June 2009 (UTC)
thread_title: UHV manipulator

message: This entire article looks like someone just copied and pasted a PowerPoint presentation into Wikipedia. Is there some crap I can tag this with? Segin (talk) 18:26, 23 August 2010 (UTC)
replies: text: Rewrite it :). Materialscientist (talk) 23:33, 23 August 2010 (UTC)
thread_title:  what the hell 

message: matter and electromagnetic waves and maybe to certain extent antimatter, are made by certain "energy geometrical engineering" done on the vacuum and its virtual particles. differentiating vacuum into different kinds one of them is Ultra High Vacuum probably will cause different results if we were to apply our understanding of nature. each event will require a specific initial vacuum state to occur. As the vacuum have the highest priority component of any event and the event characters.--e:Y,?:G 15:34, 6 September 2010 (UTC)
thread_title:  Ultra high vacuum has more affect on energy geometrical engineering 

message: In my experience, the use of welded chambers and assemblies is very common,as well as the use of threaded fasteners.
Brazed assemblies would be preferable to welded perhaps, but require very exacting joint design, assembly fixturing and process control outside the realm of all but high-volume manufacturers. Welded joints afford Designers and Engineers the latitude to produce large units that would never be manageable in a brazed assembly. The difference between a common welded unit and one designed for UHV, involves thoughtful design to reduce gas pockets at the joints and proper specification of the welds. Many shops throughout my region are very adept at producing these chambers.
As far as threaded fasteners goes, I agree that threads are a source of contamination and trapped gasses in a UHV enviornment. The practice of joining parts by means of a vented screw threading into a high-quality single-pointed internally threaded hole is perfectly acceptable in most applications and provides adjustabliity and interchangability within a generic vacuum chamber.
Dadstillsurfs (talk) 00:54, 16 September 2010 (UTC)
thread_title:  RE: Material Limitations 

message: I have seen the term interlock used in UHV context, but I had taken it to be either a mistranslation, or to refer to a chamber for transfer between two vacuum chambers, not for transfer from ambient. I thought that "loadlock" was for that case. Am I mistaken ? Latrissium (talk) 11:22, 19 November 2018 (UTC)
thread_title:  Interlock vs Loadlock 

message: Yo yo yo NO WAY is a thermal gauge of any kind suitable for UHV.
That is UHV 101!
It's all about the behavior of electrons and ions under the influence of electric and magnetic fields. Current through the measuring circuit increases in proportion to the number of atoms and molecules in the media. Mysterylectricity (talk) 09:03, 31 August 2023 (UTC)
thread_title:  No thermal gauges