Degassing Refractory

[Marcusthegladiator CDT]

So the model person built this refractory case by pouring the whole arch in OrbitVest. Pinning it without gluing the dowels, and basing it.
It came out nice, and saved a lot of time.
I got it degassed and even ran the program long since these were a bit larger masses than usual.
Then someone layered the dies with porcelain and fired them with the dowel pins still inside.
The dowel pins melted all over the dies.


Then toward the end of the day they were having some issues with firing and color, and they had the nerve to say, "Marc, maybe you didn't degas them correctly."

Some people really drive me crazy.

Would you just continue layering porcelain on these dies?

-Marc

 

[dmonwaxa]

Heck NO!,,,just start over.

 

[adl]

So the model person built this refractory case by pouring the whole arch in OrbitVest. Pinning it without gluing the dowels, and basing it.
It came out nice, and saved a lot of time.
I got it degassed and even ran the program long since these were a bit larger masses than usual.
Then someone layered the dies with porcelain and fired them with the dowel pins still inside.
The dowel pins melted all over the dies.


Then toward the end of the day they were having some issues with firing and color, and they had the nerve to say, "Marc, maybe you didn't degas them correctly."

Some people really drive me crazy.

Would you just continue layering porcelain on these dies?

-Marc

No,you are done ! Start over

 

[doug]

That's the best thing to do. Better now than when you are farther along and another problem arises. I would suggest that out of curiosity you might want to go forward with this just to see what happens, but get a new set of dies first.

 

[kimba]

would only keep going if I wanted practice building onto a refractory die

 

[JMN]

So the model person built this refractory case by pouring the whole arch in OrbitVest. Pinning it without gluing the dowels, and basing it.
It came out nice, and saved a lot of time.
I got it degassed and even ran the program long since these were a bit larger masses than usual.
Then someone layered the dies with porcelain and fired them with the dowel pins still inside.
The dowel pins melted all over the dies.


Then toward the end of the day they were having some issues with firing and color, and they had the nerve to say, "Marc, maybe you didn't degas them correctly."

Some people really drive me crazy.

Would you just continue layering porcelain on these dies?

-Marc

Only if you want to hear it sing

 

[Contraluz]

Would you just continue layering porcelain on these dies?

No, and I also would decontaminate the porcelain oven after the pin melt down...

 

[H.Ross]

I hope you find this thread helpful http://dentallabnetwork.com/forums/threads/how-to-do-refractory-models.22544/#post-205118

 

[dt2013]

digital people are so funny!!!

 

[Tayebdental]

What happen Marcus the gladiator?, they used brass pins!.

 

[Marcusthegladiator CDT]

What happen Marcus the gladiator?, they used brass pins!.

It was a new model person that used a different technique. It wasn't bad. Just imagine not gluing your pins in. You can remove them from the die.
I'm tired of carroting, and duping dies. This wasn't a bad alternative. Except the part where a 30 year tech fired pins. FML