THERMAL SPRAY
THERMAL SPRAY
(OP)
Hi Everybody,
We have just purchased a new Thermal Spray, Brand: Sulzer Metco; Type/Model: 1016/PPC. At present we are in the process of studying the application/operation and we are encountering problems on poor addhesion of coating materials to the work piece especially at edge portions. Anybody has experience on said equipment? BTW, we are in the Philippines and we bought the equipment from Singapore.
We have just purchased a new Thermal Spray, Brand: Sulzer Metco; Type/Model: 1016/PPC. At present we are in the process of studying the application/operation and we are encountering problems on poor addhesion of coating materials to the work piece especially at edge portions. Anybody has experience on said equipment? BTW, we are in the Philippines and we bought the equipment from Singapore.





RE: THERMAL SPRAY
RE: THERMAL SPRAY
One more parameter that I would suugest along with those from ornerynorsk. The orientation or position of the work piece will affect the results.
Think of it as welding. Overhead welding positions are difficult. Flat horizontal position is easy. Vertical side position is not as easy. If the work piece is flat, then the edges are vertical, and need to be rotated to flat position to get same results as flat surfaces.
RE: THERMAL SPRAY
The part MUST be absolutely taken to base material, and often a sandblast to roughen the surface is necessary.
Additionally, the duration in which to spray parts after surface preparation should be kept to a minimum.
RE: THERMAL SPRAY
Thank you for all the replies. All your suggestions were noted and will be considered in our study. As to the suggestion of my townmate, ornerynorsk, we have a close coordination/contact with the manufacturer and we have followed all their suggestions and inructions but still we were not able to attain good results. We already tried to focus on work piece surface preparation by sandblasting but the coating also cheaped off when subjected to heat. Our plan now is to apply the "shotgun method", i.e., provide a nos of surfaces in one plate with diff roughness using EDM and apply the spray. Which ever surface got the good adhesion might be the best surface finish suitable to this application.
RE: THERMAL SPRAY
Aaron A. Spearin
ASQ CSSBB
www.Engineering6ss.com
"The only constant in life is change." -Bruce Lee