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Lab talk, the good, the bad, and the ugly
All Porcelain-Press
Pentron Autopress Plus furnace + Emax
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<blockquote data-quote="TheLabGuy" data-source="post: 23010" data-attributes="member: 126"><p>Your pressure should be 67 lbs/sq.in or 4.5 bars</p><p>What is your hold time and press time? What kind of ring are you using? Small ingot?</p><p>....and yes, you need vacuum, and you shouldn't leave your ring sitting outside the burnout oven for more than 30 seconds before pressing (I think that was the time I read somewhere).</p></blockquote><p></p>
[QUOTE="TheLabGuy, post: 23010, member: 126"] Your pressure should be 67 lbs/sq.in or 4.5 bars What is your hold time and press time? What kind of ring are you using? Small ingot? ....and yes, you need vacuum, and you shouldn't leave your ring sitting outside the burnout oven for more than 30 seconds before pressing (I think that was the time I read somewhere). [/QUOTE]
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Lab talk, the good, the bad, and the ugly
All Porcelain-Press
Pentron Autopress Plus furnace + Emax
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