TBS for Metco 450NS and AMDRY 2010
06-06-2015, 08:40 AM,
#1
Shy  TBS for Metco 450NS and AMDRY 2010
Hi,

I have difficulty in achieving the TBS of 1500 Psi Min for a coating thickness of Bond Coat Metco 450ns - 0.004-0.008"thk and Top Coat Amdry 2010 - 0.080" thk min as per the Specification requirements. The results I got was avg 200- 600 psiAshamed0002Ashamed0002.
My parameters for the Amdry 2010 is as follow:
Gun 9MB
Ar: 167 scfh
He: 26 scfh
carrier: 20.5 scfh
fdrt: 3.25"
Stand off: 3"

What is the best parameter to tweak in order increase the TBS? please helpAshamed0002Ashamed0002. appreciate much. Thanks
Reply
06-06-2015, 10:39 AM,
#2
RE: TBS for Metco 450NS and AMDRY 2010
Hi alvliew

A few questions which may help people give a better response:

What was the test failure mode?
Adhesive or cohesive within bond coat, adhesive between bond coat and top coat or cohesive within top coat or glue failure.

Are you finishing the coating on tests so that they are flat and true?

What glue and curing system are you using?
Reply
06-08-2015, 07:58 AM,
#3
RE: TBS for Metco 450NS and AMDRY 2010
(06-06-2015, 10:39 AM)Gordon Wrote: Hi alvliew

A few questions which may help people give a better response:

What was the test failure mode?
Adhesive or cohesive within bond coat, adhesive between bond coat and top coat or cohesive within top coat or glue failure.

Are you finishing the coating on tests so that they are flat and true?

What glue and curing system are you using?

Hi Gordon,

Thanks for the reply:
Here are the information requested:
Test failure mode: Cohesive bewteen Bond coat and Top coat
Yes. The tensile slug is finished with flat and true
Glue type: FM-1000 adhesive
Curing system: Oven between 350-400 F. Holding for 2 hours

regards
alvin
Reply
06-14-2015, 10:59 PM,
#4
RE: TBS for Metco 450NS and AMDRY 2010
(06-06-2015, 08:40 AM)alvliew Wrote: Hi,

I have difficulty in achieving the TBS of 1500 Psi Min for a coating thickness of Bond Coat Metco 450ns - 0.004-0.008"thk and Top Coat Amdry 2010 - 0.080" thk min as per the Specification requirements. The results I got was avg 200- 600 psiAshamed0002Ashamed0002.
My parameters for the Amdry 2010 is as follow:
Gun 9MB
Ar: 167 scfh
He: 26 scfh
carrier: 20.5 scfh
fdrt: 3.25"
Stand off: 3"

What is the best parameter to tweak in order increase the TBS? please helpAshamed0002Ashamed0002. appreciate much. Thanks

Hi alvliew,
It would also help to know your current and voltage values.

Typically 450NS does well with an Ar/H2 plasma at 500A and approximately 70 volts. This gives you a gross power ~ 35KW.

Try 500A
80-90 SCFH Ar
@20 H2, or, 15 He.
Carrier flow 8.0 SCFH and 9/lbs/hr.

Stand-off distance 5.0 inches.

Linear speed of 200 sfpm and a step size of 0.315", this should yield approximately 0.001" per cycle or 0.0005" per scan.

You may be too close at 3.0" and not giving enough dwell time to allow the particles to melt more uniformly and increase the cohesive strength within the coating.

Amdry 2010 can be sprayed at 212 SCFH and 6.0 SCFH H2 as per Metco's recommendations but with a linear speed of 250 SFPM with a 0.236" step size and 4.5" - 5.0" stand-off distance.

This should give you acceptable results.

Regards,
John

Reply




Possibly Related Threads…
Thread Author Replies Views Last Post
  Amdry 956 Hardness Benjamin101 3 1,487 04-11-2023, 04:42 PM
Last Post: paikhuan
  3MBTD Amdry 995C parameters Max K 0 837 10-04-2022, 08:38 PM
Last Post: Max K
  Amdry 9951. Anyone know the maximum coating thickness Antcarroll 2 2,239 01-29-2021, 08:17 AM
Last Post: loriolo
  Starting parameters for Amdry 718 Cl.B edrazee 2 2,805 03-31-2020, 07:09 PM
Last Post: loriolo
  Amdry 9954 for titanium based alloy Bharti Malvi 6 6,075 12-21-2016, 07:39 PM
Last Post: Bharti Malvi
  Amdry 962 and Metco 204 NS parameters F1 45° giuiori75 2 10,749 03-24-2016, 04:31 PM
Last Post: Max K
  Turbulent 450ns Microstructure. alvliew 10 8,013 11-17-2015, 12:43 PM
Last Post: Joris Kraak
  AMDRY 1718- Hardness alvliew 4 8,313 03-13-2015, 11:21 PM
Last Post: loriolo
  Spray 450NS+601NS with 11MB Airbin 4 7,939 02-13-2013, 07:11 PM
Last Post: loriolo
  Metco 450NS Laurent 9 14,921 08-18-2011, 11:17 PM
Last Post: kschewe
  Melting, unmelted AlSi Microstructure Amdry 2010 powder William 4 7,162 08-26-2010, 04:00 PM
Last Post: Gordon
  AMDRY 500F AYKAC 1 5,094 03-01-2010, 12:26 PM
Last Post: Gordon
  Difference between Metco 450NS and Metco 8400? Laurent 5 19,472 05-14-2009, 12:39 PM
Last Post: SimonH
  Amdry 2010 & Metco 601 ykang 2 7,760 06-17-2008, 06:38 AM
Last Post: ykang



Users browsing this thread: 1 Guest(s)





Surface Engineering Forum Sponsor - Alphatek Hyperformance Coatings Ltd