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Lab talk, the good, the bad, and the ugly
Equipment
Sintra issue/problem
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<blockquote data-quote="CoolHandLuke" data-source="post: 324088" data-attributes="member: 4850"><p>yes it needs to be closed during the hottest sintering time, but this cracked open part is ok during the heat rising part of the cycle. without it, you'd be expanding hot air and blow the top off. </p><p></p><p>check for obstructions, check that the furnace is being told to close all the way. some have % lift values, to help slowly dissipate heat. </p><p></p><p>lastly check your zirc temps, because while it used to be true that zirc gets more translucent with more temperature, there is a cutoff point. there is such a thing as losing shade with too high temperature, and such a thing as burning zirc with it in the furnace too long. with multilayer this is doubly true.</p></blockquote><p></p>
[QUOTE="CoolHandLuke, post: 324088, member: 4850"] yes it needs to be closed during the hottest sintering time, but this cracked open part is ok during the heat rising part of the cycle. without it, you'd be expanding hot air and blow the top off. check for obstructions, check that the furnace is being told to close all the way. some have % lift values, to help slowly dissipate heat. lastly check your zirc temps, because while it used to be true that zirc gets more translucent with more temperature, there is a cutoff point. there is such a thing as losing shade with too high temperature, and such a thing as burning zirc with it in the furnace too long. with multilayer this is doubly true. [/QUOTE]
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Lab talk, the good, the bad, and the ugly
Equipment
Sintra issue/problem
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