Dear colleagues

Is there anybody using the cold spray on this site? What it would be your overall feed-back about it? How expensive is the equipment and the running costs compared with HVOF?
Is there somebody spraying Ti for example with cold spray? How does it work? Thank you for your input!

Best regards,
Florin

Hi Gordon and everyone,

I have interphase problems in spraying AMDRY 500F to Ti substrate. I have tried different grit blasting parameters to enhance surface properties and spray parameters to accelerate the splats to have better adhesion. Still the interphase has some oxide stringers and delamination. Can you please advise?

9MB Gun
732 nozzle
process gass: Ar/H2
Coating material: Cu-Ni-In (Fine)

Hi,

Pump Shaft Dia.45 mm x 6000 mm length.
Base Material : Nitronic50
Application with ethylene pure & working temp should be around -100°C

Help identify material & process to be use with data above.

Thanks!!

PPK

We just recived our SM-F100-Connex internal plasma spray gun (1700mm) from Sulzer Metco and I am curious if anyone here on the forum has any experience in using the Connex spray gun?

Best regards,

Jens Ekelund

Hi Guys

I need urgent assistance.

We quoted a job for a customer on which they supplied us with limited information.

They required us to blast and aluminuim flame spray steel pipes.

After site setup was done they supplied us with a document containing their requirements. The specification calls for Arc spray, adhesion of 1000 to 2000 psi, surface profile 75-125. The data sheet we have on the aluminuim wire says that flame spray application will achieve up to 800 psi. How do I go about improving the adhesion of the coating ? Will heating the steel help allot or will a courser profile do the trick ?

Thanks

I am exploring a project here in the US that will require the use of HVAF assisted arc technology. I am familiar with the basics of the technology, but have yet to work with the equipment (though I have experience with both HVAF and Twin Arc systems).

The project is field application and TONS of square footage.

The ideal system can support guns that are as far as possible from the fuel source yet still generate densely packed splats and generous spray pattern (thousands of square feet one inch at a time is not reasonable).

Is anyone aware of equipment available for purchase that is suited for this application? UniqueCoat seems to have a solution that might work, but many of the HVAF/Arc systems out there are young and don't have much track record to judge by. It seems that many of the companies that have developed this technology to a point where it works have labeled it proprietary and kept it off of the market.

Help!

Hello,

Is anybody able to help me with the composition of the MCP 400 wire ?

Thank you!

Ion

Hello,
We are trying to rebuild roll surface which is constantly suffering rolling contact fatigue using PTA process but our expierence/knowlidges here is insufficient . Please explain why we have cracks in first welded seam after we are trying to put second seam near first one. We cant preaheat the roll over 100C. The material is NiCrBSi (HRC 60).
Best regards
Arturas

Hi
Anyone had an experience of spray Al-Bronze powder with Gas HVOF please give me more info about best parameters...
Thanks.
Ehsan

Hi everyone,

We are producing hardfacing powder. Our customers ( they have pta machine for hardfacing) have complaint about "cavity problem" on the moulds. they are using nickel based powder (NiCrBSi). Hardness 30-35 rockwell. We dont solve this problem. Otherwise we dont know the problem occuring from us or Customesr PTA machine.

Have a good week for everyone

Bahattin