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PinAn
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Looks like bad element?
The reason for letting your Zirc dry...
At the least with the acid based stains...
Your recomended to dry them under a heat lamp...
I tested and found no difference in color from dried under a heat lamo and not dried under a heat lamp. So why the heat lamp?
Your stains produce gases that are corrosive to the heating elements in the oven...
So dry your zirc before sintering...
And your elements will last that much longer...
Not true. Acidic stains have absolutly no effect on Silica layer (glass) on the elements.
It is simply a matter of mis-matched CTE, and the Silica will flake off eventually.
You are mis-informed and cornfused on this subject my friend.
The Silica layer will even flake off with the furnace cold and nothing in the furnace at all!
Has nothing to do with what stains you use and how dry they are.
Just drying the stains does nothing to the acids.
They are still there! See the Acids in a glass container? The acids have no effect on Glass (Silica) which is what is covering the elements.
All you are doing is evaporating the carrier liquid (Di-ethelyne Glychol, or Water)
The acids are still left in the zirconia! LOL Now, they are just dried.
I have owned over Thirty furnaces. And you? I have in stock over 150 elements for many many furnaces.
I have designed my own furnace a couple of times.
Believe me, drying the Zirconia is a great thing to do, but has no effect on the life-span of the elements.
Pure B.S.
Just drying the stains does NOT reduce the amount of acidic gas released during sintering. Can't you still smell them just as much?
Scott
It only build up my experience/knowledge, which I pass on to others.
That is how it helps.
Acid or no acid does nothing to the Silica layer that covers the elements. Period. No effect what so ever on the life-span of the elements
That layer flakes off due to the mismatch of the CTE of the Two atomic-elements.....Molybdenium #42, and Silicon element # 14.
Keeping your elements warm helps.
Drying the stains does not reduce the amount of acidic gas released during the sintering process.
All the acid is still present in the Zirconia.
Does all of this make sense to you now?
It is contaminated from the exposed Molybdenium.
That actually burns in the presence of oxygen at the furnace's high temp, if not covered by silica.
The burining molybdenium produces the gnarly gas that is responsible for discoloration of the zirconia.
Zirkon Zahn has one solution, to remove the oxygen and replace with argon gas. Amann Girrbach also sells such a furnace.
I know what I am talking about guy. The issue is absolutly the silica flaking off. You are a noob just taking a guess as to what is going on.
I promise you.
So smart-a55, go ahead and explain to me why it is necessary to have the elements coated in glass when using an atmospheric furnace.....
It is because of exactly what I am saying. Only a fool would argue with me on this.
It does not make sense that a wet stain produces more acidic gas than when dried.
same/same. Drying keeps the zirconia from exploding when the stain's suspension liquid would reach it's boiling point. So, you need to dry your sh1t before you get it too hot. That is all.
hola mi amigo.al parecer tienes mucha experiencia con los hornos de sinterizacion¿Parece mal elemento?
Simplemente secar las manchas no hace nada con los ácidos.
¡Todavía están allí! ¿Ves los ácidos en un recipiente de vidrio? Los ácidos no tienen efecto sobre el Vidrio (Sílice) que es lo que cubre los elementos.
Todo lo que está haciendo es evaporar el líquido portador (Di-ethelyne Glychol o Water)
¡Los ácidos aún quedan en la zirconia! LOL Ahora, solo están secos.
Poseído más de Treinta hornos. ¿Y usted? Tengo en stock más de 150 elementos para muchos hornos.
Diseñó mi propio horno un par de veces.
Créame, secar la Zirconia es una gran cosa que hacer, pero no tiene ningún efecto sobre la vida útil de los elementos.
BS puro
Simplemente secar las manchas NO reducir la cantidad de gas ácido liberado durante la sinterización. ¿Todavía no puedes olerlos tanto?
escocés
hola ***, tengo un horno de zinterizacion marca kejia, el horno lo compre usado y al parecer venia contaminado, mis trabajos salian amarillentos,cambie los elementos incluso todo el material refractario,para eliminar la contaminacion. ahora sale mucho mejor pero todavia un poco de amarillo ,un colega me dijo que era temperatura y he subido la temperatura poco apoco voy en 1590 y hoy no salio nada de amarillo.¿Parece mal elemento?
una pregunta scott.cuando sale el zirconio amarillento es por los elementos ?Simplemente secar las manchas no hace nada con los ácidos.
¡Todavía están allí! ¿Ves los Ácidos en un recipiente de vidrio? Los ácidos no tienen efecto sobre el Vidrio (Sílice) que es lo que cubre los elementos.
Todo lo que está haciendo es evaporar el líquido portador (Di-ethelyne Glychol o Water)
¡Los ácidos aún quedan en la zirconia! LOL Ahora, solo están secos.
He poseído más de Treinta hornos. ¿Y usted? Tengo en stock más de 150 elementos para muchos hornos.
He diseñado mi propio horno un par de veces.
Créame, secar la Zirconia es una gran cosa que hacer, pero no tiene ningún efecto sobre la vida útil de los elementos.
BS puro
Simplemente secar las manchas NO reduce la cantidad de gas ácido liberado durante la sinterización. ¿Todavía no puedes olerlos tanto?
scott