开云体育

No I don't clean it between runs. It is pretty big and cleaning it is a day long adventure. I do keep it clean though so there is not any random oils just on the surfaces. The soot is pretty uniform

-- ____________________________________ Donald M. Mattox Society of Vacuum Coaters 71 Pinon Hill Place NE Albuquerque, NM 87122-1914 Telephone 505/856-7188 FAX 505/856-6716 E-mail donmattox@...

Andrew, Obviously it's contamination reacting with the plasma. Do you clean your whole chamber with acetone every run? Try not to use silicon grease as it will capture contaminants and also migrate

Oops......... that was 704 Dow silicone oil in the pumps Sent: Thursday, June 10, 2010 7:56 AM To: VacuumX@... Subject: [VacuumX] plasma cleaning system making soot Hey gang, I just cant

Hey gang, I just cant seem to run my plasma cleaning system without it making soot on the optical surfaces. I am using the very expensive DOW 714 oil in both of my diffusion pumps, have water coolant

Bill, To echo what others are likely to have said, large diffusion pumps are often available on eBay for a song. They are less desirable than small pumps, just because there are fewer amateur

Thanks Ken Yes I look forward to some input on this one. I Have been thru the groups file section & photo and found them to be very helpful. Mr. Lerch has also been extremely help to, but always more

Hello Actually this is in work.. Hmmm did not really think it was that lager (8.25 CuFt.) A turbo would be awesome but the cost is . well ???? So for now a Diffusion will have to do. Looking at a 6",

I would be more concerned about getting the chamber before thinking about the pumps. A 36" diameter chamber is not a trivial thing. Do you already have one ??? I searched ebay for a year before I

Hi Bill... Welcome to VacuumX. Good questions, some answers should be forthcoming from some of the members soon. In the mean time, there is a lot of information that you can check in the VacuumX

Hello Group This is my first posting to the group. I am in the process of preliminary thoughts relating to a coating system. I was looking for information to look at designing and constructing a

Great links but on Ebay you could sometimes get a commercial/industrial vacuum gauge in great working condition for only around 35$ or even less sometimes. I have bought 4 under 1 year from Ebay and

a fend search for somebody able to make alluminysed at '''City called Okara, south of Lahore'', in india or need ther somebody in the group know a co able to do the job for a 6 inch only he try to

Some years ago I built several pirani gages using 110 V Christmas lights and 110 V panel light bulbs. I preferred the Christmas lights as they were chap on sale after Christmas. If details are of

I read a post on and other group where the guy try to make a pirani detector and control for reading whit ordinary buld the kind of bulb we found on fancy cnadelabra whit flame form he cut the end and

I agree. That deep purple coating is only about 40% reflective but it is very tough. I coated my secondary a little wrong about 2 years ago and it still looks perfect....... But is only 40%

That's why Kevin at Mid Western Tungsten recommended the alumina coated tungsten boats, nickel wets tungsten a little too well shall we say.. Funny but aluminium does this too, but the low BP means

Hi Henry, That is very possible. The nickel has a high melting point and by the time it melts in the boat everything is very hot. Once it did melt it was only a mater of seconds before the boat melted

Isnt there any risk that the tungsten would be disolved into the nickel so it would be a deposit of both? It might not matter perhaps just wanted to mention it if this now micht be the case. Regards

Hi All, Today I accuired a new toy for me. This is a Balzers BA-500 coater. It is in bad condition, but I got a lot of spare parts with it. Two Balzers DUO-25 forvacuumpump, two diffusion pump, a lot