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Lab talk, the good, the bad, and the ugly
All Porcelain-Press
Help, new to pressing
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<blockquote data-quote="ztech" data-source="post: 339289" data-attributes="member: 3022"><p>Now reduce the temp by 5 C to make the fine adjustment. When you get small spots like that, reduce by 2C to get it where it is smooth all over and no voids. Again the goal is to get a complete casting with as little reaction layer as possible. Bubbles equal heat, excessive reaction layer equals time in the mold after pressing and heat. Rounded margins or incomplete pressing is heat saturation at temp and/or not enough temp.</p></blockquote><p></p>
[QUOTE="ztech, post: 339289, member: 3022"] Now reduce the temp by 5 C to make the fine adjustment. When you get small spots like that, reduce by 2C to get it where it is smooth all over and no voids. Again the goal is to get a complete casting with as little reaction layer as possible. Bubbles equal heat, excessive reaction layer equals time in the mold after pressing and heat. Rounded margins or incomplete pressing is heat saturation at temp and/or not enough temp. [/QUOTE]
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Lab talk, the good, the bad, and the ugly
All Porcelain-Press
Help, new to pressing
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