Surface Engineering Forum

  • Alternative Forum Home PageSEF Portal
  • Old S E Message Board ArchivesOld Message Board Archives
  • Search
  • Member List
  • Calendar
  • Help

Current time: 12-06-2019, 10:23 PM Hello There, Guest! (Login — Register)


Surface Engineering Forum / Surface Engineering / Surface Engineering Threads v
« Previous 1 ... 6 7 8 9 10 ... 33 Next »
/ Distilled vs Deionized water in gun cooling system




Post Reply 
Threaded Mode | Linear Mode
Distilled vs Deionized water in gun cooling system
07-23-2015, 06:04 PM
Post: #1
Max K Offline
Active Member
****
Posts: 11
Joined: Jul 2013
Reputation: 0
Distilled vs Deionized water in gun cooling system
Hello,

What type of water is better to use in gun cooling system distilled or deionized? I red that deionized water is "hungry" for ions, and therefore it will attack copper in cables and in gun.

Process: APS.
Gun: SG2086, SG100.
Temp in: 16.9 C.
Temp out: 22 C.

Thank you.
Send this user an email Find all posts by this user
Quote this message in a reply
07-24-2015, 11:12 AM
Post: #2
adam wintle Offline
Active Member
****
Posts: 38
Joined: Jan 2007
Reputation: 2
RE: Distilled vs Deionized water in gun cooling system
This is from a Praxair TAFA technical bulletin.

Water Purity
Electrical conductivity of cooling water in the cables can affect arc starting. It has been documented that normal distilled water and tap water measure about
400 micro-mhos/cm [also known as microSiemens/cm (μS)] and normally do not affect arc starting. Is has also been observed that at 800 micro-mhos/cm (μS), significant arc starting problems present themselves. TAFA recommends
distilled, not de-ionized or tap water. In closed-loop systems, the simplest fix for this problem is to change the water periodically. If an open-loop system is being used and the water is too conductive, water treatment is in order. The use of filters and/or deionizers will usually lower conductivity. Maintenance performed on water distribution systems can temporarily affect water purity/conductivity.
Send this user an email Find all posts by this user
Quote this message in a reply
07-24-2015, 03:38 PM
Post: #3
Max K Offline
Active Member
****
Posts: 11
Joined: Jul 2013
Reputation: 0
RE: Distilled vs Deionized water in gun cooling system
(07-24-2015 11:12 AM)adam wintle Wrote:  This is from a Praxair TAFA technical bulletin.

Water Purity
Electrical conductivity of cooling water in the cables can affect arc starting. It has been documented that normal distilled water and tap water measure about
400 micro-mhos/cm [also known as microSiemens/cm (μS)] and normally do not affect arc starting. Is has also been observed that at 800 micro-mhos/cm (μS), significant arc starting problems present themselves. TAFA recommends
distilled, not de-ionized or tap water. In closed-loop systems, the simplest fix for this problem is to change the water periodically. If an open-loop system is being used and the water is too conductive, water treatment is in order. The use of filters and/or deionizers will usually lower conductivity. Maintenance performed on water distribution systems can temporarily affect water purity/conductivity.

Thank you very much Adam.
Is there a place online where I can get TAFA technical bulletin or I need to request it from TAFA?
Send this user an email Find all posts by this user
Quote this message in a reply
07-27-2015, 11:21 AM
Post: #4
adam wintle Offline
Active Member
****
Posts: 38
Joined: Jan 2007
Reputation: 2
RE: Distilled vs Deionized water in gun cooling system
You'll need to get it from your local Praxair TAFA agent.

Best Regards,
Adam
Send this user an email Find all posts by this user
Quote this message in a reply
« Next Oldest | Next Newest »
Post Reply 




Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  Nitrogen Cooling Neufeld 2 382 08-20-2019
11:40 AM
Last Post: loriolo
  Plasma System Inquire Chever.Cai 0 247 06-20-2019
06:13 AM
Last Post: Chever.Cai
  Want consumables for Metco 16E combustion wire system. Turbo Machinery 0 248 06-07-2019
12:11 PM
Last Post: Turbo Machinery
  Twin Arc spray system ( request for your recommendation) demionkrishan 0 378 03-04-2019
10:22 PM
Last Post: demionkrishan
  Water cooled vs air cooled Met.Eng. 5 724 12-08-2018
04:01 PM
Last Post: vcduramais
  HVOF System Considerations Josgates 5 802 07-10-2018
03:01 PM
Last Post: Stephen Booth
  Part shrinkage after cooling down. Rage2371 5 1,174 06-14-2018
09:42 PM
Last Post: KevGarty
  opening blocked cooling holes in Stage 1 gas turbine blades Gustavo Woltmann 1 1,128 03-07-2017
08:27 AM
Last Post: loriolo
  opening blocked cooling holes in Stage 1 gas turbine blades demionkrishan 1 1,281 03-04-2017
07:44 AM
Last Post: loriolo
  The best HVOF system for MCrAlY DMack 12 6,636 01-21-2017
04:54 AM
Last Post: david.wang
Lightbulb Air jets cooling cross type Spark 4 2,938 05-04-2016
12:13 PM
Last Post: loriolo
  Reg: Cooling process. Dileep 2 2,417 10-16-2015
01:05 AM
Last Post: Johnny_Blaze
  INFO ON ROKIDE SPRAY SYSTEM ehasan 11 18,353 07-10-2015
07:39 AM
Last Post: shantanu
  turbine rotor gland seal system, Stephen Booth 1 2,708 06-20-2015
06:47 PM
Last Post: Johnny_Blaze
  Miller Thermal Plasma spray system Vijay Deshpande 2 3,287 06-20-2015
06:19 PM
Last Post: Johnny_Blaze

  • View a Printable Version
  • Send this Thread to a Friend
  • Subscribe to this thread


User(s) browsing this thread: 1 Guest(s)





Surface Engineering Forum Sponsor - Alphatek Hyperformance Coatings Ltd

    Subscribe in a reader

    Contact Us | Thermal Spray Coatings | Return to Top | Return to Content | Lite (Archive) Mode | RSS Syndication

Powered By MyBB, © 2002-2019 MyBB Group.


© Copyright Gordon England