JohnWilson
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We had a very frustrating morning in our EMAX department that cost me a bunch of money. We had 5 200 Gram rings fracture on us today. 3 of the 5 failed in the oven and 2 had hairlines that we pressed and they failed.
We follow all of the steps with EMAX by the book we the only exception of utilizing Formula one for our investment. Our powder/liquid ratios are spot on as we use Whipmix equipment to weight and dispense the special liquid and water precisely. Or vac mix machine is programmable as well so I know nothing has changed. I invested in all of this equipment to maintain accuracy across the board from tech to tech no matter who was doing the investing.
Of course we are following whipmixes investing instructions to the T as we always have and just so you guys know we use all of Ivoclars silicone rings and spru formers.
A side note ee invested and cast 5 ceramic alloy rings today with no trouble or cracks with the same batch of investment
At first thought I felt that we got a bad batch of special liquid that froze but that does not appear to be the case. I questioned and questioned the tech today with no apparent issues. This tech has had a 99% success rate with our pressings over the last quarter s oI know he does everything by the book.
I am pulling my hair out on this as I can't stand to not know why something fails, after analyzing this back and forth I figured I would post it here to get some ideas what could be going on.
In the mean time I ordered a box of Ivoclars speed investment new plungers new spruformers/ring many of these items I need to add on as we are pressing more and more rings a day but I figure I would cover all the bases.
Any ideas?
We follow all of the steps with EMAX by the book we the only exception of utilizing Formula one for our investment. Our powder/liquid ratios are spot on as we use Whipmix equipment to weight and dispense the special liquid and water precisely. Or vac mix machine is programmable as well so I know nothing has changed. I invested in all of this equipment to maintain accuracy across the board from tech to tech no matter who was doing the investing.
Of course we are following whipmixes investing instructions to the T as we always have and just so you guys know we use all of Ivoclars silicone rings and spru formers.
A side note ee invested and cast 5 ceramic alloy rings today with no trouble or cracks with the same batch of investment
At first thought I felt that we got a bad batch of special liquid that froze but that does not appear to be the case. I questioned and questioned the tech today with no apparent issues. This tech has had a 99% success rate with our pressings over the last quarter s oI know he does everything by the book.
I am pulling my hair out on this as I can't stand to not know why something fails, after analyzing this back and forth I figured I would post it here to get some ideas what could be going on.
In the mean time I ordered a box of Ivoclars speed investment new plungers new spruformers/ring many of these items I need to add on as we are pressing more and more rings a day but I figure I would cover all the bases.
Any ideas?