Surface Engineering Forum

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

Current time: 12-09-2019, 03:14 AM Hello There, Guest! (Login — Register)


Surface Engineering Forum / Surface Engineering / Surface Engineering Threads v
« Previous 1 ... 5 6 7 8 9 ... 33 Next »
/ Qualifying T800 to F50TF45 Class A




Post Reply 
Threaded Mode | Linear Mode
Qualifying T800 to F50TF45 Class A
11-11-2015, 04:18 PM
Post: #1
mmgerrie Offline
Active Member
****
Posts: 12
Joined: Nov 2015
Reputation: 0
Qualifying T800 to F50TF45 Class A
I am having problems qualifying T800 to F50TF45 Class A. I have been spraying this coating for years, but always qualifying right at the max limit of every aspect of the spec. I'm using a 3MB spray gun. Does anyone out there have parameters for a 3MB plasma gun that would qualify this coating to meet MetCut's evaluation? As we all know...MetCut is very difficult to get passed, so i need to get the unmelts & porosity down to mid level in the spec without introducing oxides beyond spec limit.

Thanks,

Mike
Send this user an email Find all posts by this user
Quote this message in a reply
11-12-2015, 03:12 PM
Post: #2
mmgerrie Offline
Active Member
****
Posts: 12
Joined: Nov 2015
Reputation: 0
RE: Qualifying T800 to F50TF45 Class A
(11-11-2015 04:18 PM)mmgerrie Wrote:  I am having problems qualifying T800 to F50TF45 Class A. I have been spraying this coating for years, but always qualifying right at the max limit of every aspect of the spec. I'm using a 3MB spray gun. Does anyone out there have parameters for a 3MB plasma gun that would qualify this coating to meet MetCut's evaluation? As we all know...MetCut is very difficult to get passed, so i need to get the unmelts & porosity down to mid level in the spec without introducing oxides beyond spec limit.

Thanks,

Mike

If poeple are thinking that a 3M gun can't do the job, what would be a better spray gun? Possibly a 9M?
Send this user an email Find all posts by this user
Quote this message in a reply
11-17-2015, 08:07 PM
Post: #3
loriolo Offline
SuperMember
******
Posts: 296
Joined: Jan 2010
Reputation: 4
RE: Qualifying T800 to F50TF45 Class A
Hi Mike
I did many qualification parameter set up for T800 to F50TF45, and it was very hard to reach the values that matched with the specifications, and it took many weeks to obtain a set parameter, I try with both torch 9MB and F4, and it was easier with F4 gun

Best regards
Luigi
Send this user an email Visit this user's website Find all posts by this user
Quote this message in a reply
11-18-2015, 07:03 PM
Post: #4
mmgerrie Offline
Active Member
****
Posts: 12
Joined: Nov 2015
Reputation: 0
RE: Qualifying T800 to F50TF45 Class A
(11-17-2015 08:07 PM)loriolo Wrote:  Hi Mike
I did many qualification parameter set up for T800 to F50TF45, and it was very hard to reach the values that matched with the specifications, and it took many weeks to obtain a set parameter, I try with both torch 9MB and F4, and it was easier with F4 gun

Thanks for the response. We've tried the F4 gun and it's just as difficult to sustain a consistent/repeatable process. One day the parameters are good and the next day they are not. I can't seem to stabilize the process to where I can be assured that we are capable of repeating it time and time again. It's a very difficult spec to meet and sustain and quite the headache. I'm starting to believe that this spec is just one of those specs that we'll never satisfy on a consistent bases. The class B version of the spec is so much easier.
Send this user an email Find all posts by this user
Quote this message in a reply
12-23-2015, 03:38 AM
Post: #5
alvliew Offline
Active Member
****
Posts: 14
Joined: Nov 2014
Reputation: 0
RE: Qualifying T800 to F50TF45 Class A
(11-18-2015 07:03 PM)mmgerrie Wrote:  
(11-17-2015 08:07 PM)loriolo Wrote:  Hi Mike
I did many qualification parameter set up for T800 to F50TF45, and it was very hard to reach the values that matched with the specifications, and it took many weeks to obtain a set parameter, I try with both torch 9MB and F4, and it was easier with F4 gun

Thanks for the response. We've tried the F4 gun and it's just as difficult to sustain a consistent/repeatable process. One day the parameters are good and the next day they are not. I can't seem to stabilize the process to where I can be assured that we are capable of repeating it time and time again. It's a very difficult spec to meet and sustain and quite the headache. I'm starting to believe that this spec is just one of those specs that we'll never satisfy on a consistent bases. The class B version of the spec is so much easier.
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
  T800 parameter Ping Cheng 2 784 03-14-2019
09:56 AM
Last Post: Ping Cheng
  HVOF JK parameters for T800 plyer 8 10,032 07-27-2017
01:41 PM
Last Post: technovel
  T800 coating delamination alvliew 5 2,743 05-05-2017
02:54 AM
Last Post: KevinS
  HVOF T800 Tensile Bond Strength issue wgg237 2 3,289 03-05-2015
01:52 AM
Last Post: wgg237
  problems with T800 HVOF stokee 22 31,636 08-13-2012
10:08 AM
Last Post: wgg237
  HVAF and T800 mark ainsley 5 5,601 03-30-2012
09:50 PM
Last Post: djewell
  Chrome Carbide & T800 Coating Property Change after heat treatment Alexangel1226 5 12,241 09-30-2010
03:04 AM
Last Post: arjfaye06
  HVOF T800 removal finnie 2 8,693 12-16-2008
01:08 PM
Last Post: kurtecard
  T800 critque Intel55 3 6,586 09-05-2008
08:37 PM
Last Post: Intel55
Rolleyes Etching solution for T800 Phdstudent 2 5,393 04-15-2008
04:31 PM
Last Post: Phdstudent
  T800 coating enquiry howied 14 18,248 08-15-2007
02:35 PM
Last Post: Gordon

  • 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