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Lab talk, the good, the bad, and the ugly
Metal
Spruing help
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<blockquote data-quote="adamb4321" data-source="post: 64949" data-attributes="member: 838"><p>900c sounds high for Pd alloys, this can cause brittle castings so beware. How long are you heat soaking the rings for? </p><p></p><p>I haven't used the IQ machine only the older versions that were not induction, on those machines it was necessary to heat the alloy for a further minute or more after it had gone into a ball which can seem like a very long time. Any way like Al says maybe you need to heat the alloy a little longer</p><p></p><p>Doesn't the IQ tell you when to cast anyway?</p><p></p><p>Hereaus used to have pretty good info for sprueing, are you following what they say?</p></blockquote><p></p>
[QUOTE="adamb4321, post: 64949, member: 838"] 900c sounds high for Pd alloys, this can cause brittle castings so beware. How long are you heat soaking the rings for? I haven't used the IQ machine only the older versions that were not induction, on those machines it was necessary to heat the alloy for a further minute or more after it had gone into a ball which can seem like a very long time. Any way like Al says maybe you need to heat the alloy a little longer Doesn't the IQ tell you when to cast anyway? Hereaus used to have pretty good info for sprueing, are you following what they say? [/QUOTE]
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Lab talk, the good, the bad, and the ugly
Metal
Spruing help
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