How to spray combustion chamber liner

[Michaellearnstocoat]

Dear People,

Could anyone help to direct what is the better equipment solution for spraying combustion chamber liner (ID). Especially the bond coat for the total TBC. I know that for spray TBC on blade we can use VPS or HVOF (the bond coat), but to spray ID of combustion chamber or transition piece, what equipment is better? Can HVOF have the proper ID gun? Or we have to use ID torch of APS? Thanks.

Michaellearnstocoat

[Parat Tech]

Dear People,

Could anyone help to direct what is the better equipment solution for spraying combustion chamber liner (ID). Especially the bond coat for the total TBC. I know that for spray TBC on blade we can use VPS or HVOF (the bond coat), but to spray ID of combustion chamber or transition piece, what equipment is better? Can HVOF have the proper ID gun? Or we have to use ID torch of APS? Thanks.

Michaellearnstocoat

Dear,

You can use ID APS gun for spraying ID area. There is one model available for internal plasma coatings. Using HVOF i dont think it will work for applying TBC coating.


Thanks

[Michaellearnstocoat]

Dear People,

Could anyone help to direct what is the better equipment solution for spraying combustion chamber liner (ID). Especially the bond coat for the total TBC. I know that for spray TBC on blade we can use VPS or HVOF (the bond coat), but to spray ID of combustion chamber or transition piece, what equipment is better? Can HVOF have the proper ID gun? Or we have to use ID torch of APS? Thanks.

Michaellearnstocoat

Dear,

You can use ID APS gun for spraying ID area. There is one model available for internal plasma coatings. Using HVOF i dont think it will work for applying TBC coating.


Thanks

---

Thank you Hari,

I heard someone using HVOF spraying bondcoat of TBC which can be better than APS sprayed bondcoat. So I thought if HVOF is also used on spraying bond coat of combustion chamber if they are large enough like 550mm in diameter, maybe DJ's extention gun can handle the ID spraying of MCrAlY bond? Anyone tried? Or APS spray the MCrAlY bond of combustion chamber is the fixed and recognized OEM method? Thanks.

[Parat Tech]

Dear People,

Could anyone help to direct what is the better equipment solution for spraying combustion chamber liner (ID). Especially the bond coat for the total TBC. I know that for spray TBC on blade we can use VPS or HVOF (the bond coat), but to spray ID of combustion chamber or transition piece, what equipment is better? Can HVOF have the proper ID gun? Or we have to use ID torch of APS? Thanks.

Michaellearnstocoat

Dear,

You can use ID APS gun for spraying ID area. There is one model available for internal plasma coatings. Using HVOF i dont think it will work for applying TBC coating.


Thanks

---

Thank you Hari,

I heard someone using HVOF spraying bondcoat of TBC which can be better than APS sprayed bondcoat. So I thought if HVOF is also used on spraying bond coat of combustion chamber if they are large enough like 550mm in diameter, maybe DJ's extention gun can handle the ID spraying of MCrAlY bond? Anyone tried? Or APS spray the MCrAlY bond of combustion chamber is the fixed and recognized OEM method? Thanks.

Dear, HVOF sprayed coating is always less porous coating which I personally never suggest for bond coat purpose. after bond coat surface should be little rough so as to give proper adherence to the top coat.

Have a nice day!

[amardigital]

Dear People,

Could anyone help to direct what is the better equipment solution for spraying combustion chamber liner (ID). Especially the bond coat for the total TBC. I know that for spray TBC on blade we can use VPS or HVOF (the bond coat), but to spray ID of combustion chamber or transition piece, what equipment is better? Can HVOF have the proper ID gun? Or we have to use ID torch of APS? Thanks.

Michaellearnstocoat

hello
you can use APS and use GUN 3Mb use also powder for bond amdry 962

[Stephen Booth]

The most standard quality solution for TBC coating equipment is using APS process for the bond coat and for the Top Coat. That way you have only one set up, and one process to control. Using all the other processes are great, but not really a good place to start.

Stick with plasma you will be fine.

Normally you would use a 80KW power supply , with powder feeder, and the torch could be a 3MBT or F1 torch depending on your configuration.

Many companies including my make this equipment, integrating to Robots, spray booth, etc as well.