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Lab talk, the good, the bad, and the ugly
Metal
Looking for advice about casting fundamentals
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<blockquote data-quote="ps2thtec" data-source="post: 340848" data-attributes="member: 3335"><p>Lots of good stuff mentioned so far. I’ve use Natural gas/ oxygen for casting here. No problems.</p><p>What torch tip do you have. Use a multi-orrifice tip. </p><p>Oxygen pressure for gold crowns, I set at 5lbs. (For ceramic alloys,20lbs.)</p><p>Open up torch, heat crucible, start to melt gold,(usually remelt button first, then put in new ingots) and when it starts to pool, dial back the oxy valve on the torch to give it a more brush flame. Quick shake of flux, load ring , gold should look like a shiny pool, let it fly.</p><p>Have you balanced the weight on the broken arm yet? </p><p>Two winds for gold crowns works here. Three for ceramic alloys.</p><p></p><p>[ATTACH]39392[/ATTACH]</p></blockquote><p></p>
[QUOTE="ps2thtec, post: 340848, member: 3335"] Lots of good stuff mentioned so far. I’ve use Natural gas/ oxygen for casting here. No problems. What torch tip do you have. Use a multi-orrifice tip. Oxygen pressure for gold crowns, I set at 5lbs. (For ceramic alloys,20lbs.) Open up torch, heat crucible, start to melt gold,(usually remelt button first, then put in new ingots) and when it starts to pool, dial back the oxy valve on the torch to give it a more brush flame. Quick shake of flux, load ring , gold should look like a shiny pool, let it fly. Have you balanced the weight on the broken arm yet? Two winds for gold crowns works here. Three for ceramic alloys. [ATTACH]39392[/ATTACH] [/QUOTE]
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Lab talk, the good, the bad, and the ugly
Metal
Looking for advice about casting fundamentals
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