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White metal casting
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<blockquote data-quote="Tzs503gp" data-source="post: 1040969" data-attributes="member: 19443"><p>Hey Herman</p><p></p><p>Damn, this is not as easy as it looks on the tube, hey.</p><p></p><p>Just from my observations here, I have two suggestions. The guys on YouTube are using some variation of melting furnace. You are using a pan on a flame. I think they are achieving much higher liquid temperatures than you are. I would think the higher temps allow more time for the pour to outgas and stabilise.</p><p></p><p>Not easy in your situation, but if you increased the length of you centre slug, it would hold temperature for longer. Might help a tiny bit?</p><p></p><p>Thanks for the excellent pics and descriptions.</p><p></p><p>Edit: if the centre slug were solid, rather than a piece of pipe would also add to its volume, and thus heat retention</p></blockquote><p></p>
[QUOTE="Tzs503gp, post: 1040969, member: 19443"] Hey Herman Damn, this is not as easy as it looks on the tube, hey. Just from my observations here, I have two suggestions. The guys on YouTube are using some variation of melting furnace. You are using a pan on a flame. I think they are achieving much higher liquid temperatures than you are. I would think the higher temps allow more time for the pour to outgas and stabilise. Not easy in your situation, but if you increased the length of you centre slug, it would hold temperature for longer. Might help a tiny bit? Thanks for the excellent pics and descriptions. Edit: if the centre slug were solid, rather than a piece of pipe would also add to its volume, and thus heat retention [/QUOTE]
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DIY & Tutorials
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White metal casting
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