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Lab talk, the good, the bad, and the ugly
Metal
Non Precious Casting Trouble- Help!!!
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<blockquote data-quote="Janine Harris" data-source="post: 135395" data-attributes="member: 11661"><p>Sideshow Bob I'm located in Sydney. How about you? Probably different ends of the world?! Thats why I'm just replying now- just woke up!!! My email is <a href="mailto:designasmile@outlook.com">designasmile@outlook.com</a> if thats easier? </p><p> Its at degrees C. I used Alphavest speed.</p><p>Third try resulted in 875 burnout with 35PSI Propane 90PSI O2. It cast, but was still a miscast with it clearly STILL not being hot enough!!!</p><p>I will try 925 burnout today and really up the PSI so, as you say Bumfrey, it will sound like a freight train!!! It was pretty roaring yesterday tho.</p><p>I do seem to remember heating up the non precious alloy in the furnace first all those many moons ago when I was living in the U.K. </p><p>I will try that today and let you know. Thing is think my torch only casts at max 1500 degrees C. Which is only just hot enough. </p><p>Manufacturer says I could try a casting flux but dont really want to start doing that!</p></blockquote><p></p>
[QUOTE="Janine Harris, post: 135395, member: 11661"] Sideshow Bob I'm located in Sydney. How about you? Probably different ends of the world?! Thats why I'm just replying now- just woke up!!! My email is [email]designasmile@outlook.com[/email] if thats easier? Its at degrees C. I used Alphavest speed. Third try resulted in 875 burnout with 35PSI Propane 90PSI O2. It cast, but was still a miscast with it clearly STILL not being hot enough!!! I will try 925 burnout today and really up the PSI so, as you say Bumfrey, it will sound like a freight train!!! It was pretty roaring yesterday tho. I do seem to remember heating up the non precious alloy in the furnace first all those many moons ago when I was living in the U.K. I will try that today and let you know. Thing is think my torch only casts at max 1500 degrees C. Which is only just hot enough. Manufacturer says I could try a casting flux but dont really want to start doing that! [/QUOTE]
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Lab talk, the good, the bad, and the ugly
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Non Precious Casting Trouble- Help!!!
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