Recent content by gery katona

Since the bubbles are mostly invisible, we can't see them during the process. Only after injecting the material into a mold, curing it, and opening the mold do we see the result. That of course is the worst time to find them. Maybe some kind of x-ray system like an airport scanner could see...

Understood and agreed. The problem thus far has been controlling a number of points along the process that are potential problems. It is compounded by the fact you can't visually see the air in the material since it is a paste and not transparent. One of those points that has thus far been...

Yes, that may be needed. The problem is it is mixed in a separate bowl mixer and the transfer process to cartridge is where the gets introduced.

We love interns! As a matter of fact, we have one here right now.

To sum up, we have several possibilities: - Repeatedly drop the cartridge to increase the "gravity" forcing the air up and out. Easy to test. Can inject an air bubble with a syringe and measure the movement with each drop. - Spin the cartridge in a centrifuge using either a single cartridge...

Good question, but that cures it.

I like the concept. Boneh3ad's concern about dragging the magnetic particles down is something to consider and I wonder what strength of magnetic field it would take.

I did not until another post below because I was slow to grasp the merit.

Interesting. Yea, that would be cheap for sure.

Our production people are excellent at dropping things, so they wouldn't need much training.

That is logical and would simplify the extraction once the air was isolated. Actually it would eliminate the need for extraction altogether because simply pushing up on the piston would extract it out the top. Cool! Some kind of balancing process would be needed since it would be unusual for...

Yes, that would help.

It may not, but the material IS magnetic.

Well, the material IS magnetic, but I don't understand how the curie temperature could play a role.

Yes, my thought was along the axis parallel to its length. I have invested an enormous amount of time on this bubble problem. The paste gets injected into a mold and makes aircraft parts. If an air bubble gets injected into the part, the resulting void can sometimes be repaired which is...