GrimesFrank
Mechanical
- Sep 11, 2006
- 149
We have been having difficulty from our supplier concerning the anti-friction coating on our "reusable" grayloc rings. We use currently a Henkel (Acheson) Molydag formula.
In the past we were getting +120 clamps per ring before coating wear caused metal adhesion and now we're as low as 40 but on average 85-90 clamps. We pay $500 a ring so we need to squeeze as much life out of them as possible. I don't have the compressive load but the size is Size 62 (NPS 6) and its a AISI 4140.
The earliest specifications said to use "PT. 24" coating with no proprietor or any other detail so I have no comparison. Does anyone have any detail Re; this coating?
Our current coating meets MIL-L-0046010D or so the supplier has said.
Would you suggest any other cured film for our seal rings to achieve the endurance we are looking for.
Today is gone. Today was fun.
Tomorrow is another one.
Every day, from here to there,
funny things are everywhere. ~'Dr.' Theodor Geisel
In the past we were getting +120 clamps per ring before coating wear caused metal adhesion and now we're as low as 40 but on average 85-90 clamps. We pay $500 a ring so we need to squeeze as much life out of them as possible. I don't have the compressive load but the size is Size 62 (NPS 6) and its a AISI 4140.
The earliest specifications said to use "PT. 24" coating with no proprietor or any other detail so I have no comparison. Does anyone have any detail Re; this coating?
Our current coating meets MIL-L-0046010D or so the supplier has said.
Would you suggest any other cured film for our seal rings to achieve the endurance we are looking for.
Today is gone. Today was fun.
Tomorrow is another one.
Every day, from here to there,
funny things are everywhere. ~'Dr.' Theodor Geisel