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Rifles, Reloading, Optics, Equipment
Reloading
A question about anealing?
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<blockquote data-quote="Mram10us" data-source="post: 1841555" data-attributes="member: 111667"><p>I would like to see the test info from the lead example. Other studies have shown it takes 5-8 seconds at 500c to anneal a brass neck (see <a href="https://ballisticrecreations.ca/salt_home/annealing-knowledge-centre/annealing-lit-review/" target="_blank">https://ballisticrecreations.ca/salt_home/annealing-knowledge-centre/annealing-lit-review/</a>)</p><p>Questions I have always had, but haven't taken the time to figure out:</p><p>1. How long does it take heat to transfer from both sides of the neck thru the entire .015" (for example)?</p><p>2. How is the zinc affected since its melting point is <800f?</p><p></p><p>It seems that SBA gets us to the temps needed to anneal the brass without as much error as a flame. Since we are looking for consistency, even a partial annealing (assuming it doesn't fully anneal) would still be what we are looking for.</p><p></p><p>All this to say, I'm not sure how Hot Lead Annealing cannot somehow anneal the brass when a temp/time is what we are after. Simple mechanical or chemical engineering tables should allow us to compute the time it takes 500c heat to transfer thru the neck. Then further help us compute how much time it takes to transfer the heat up the shoulder and case body.</p></blockquote><p></p>
[QUOTE="Mram10us, post: 1841555, member: 111667"] I would like to see the test info from the lead example. Other studies have shown it takes 5-8 seconds at 500c to anneal a brass neck (see [URL]https://ballisticrecreations.ca/salt_home/annealing-knowledge-centre/annealing-lit-review/[/URL]) Questions I have always had, but haven't taken the time to figure out: 1. How long does it take heat to transfer from both sides of the neck thru the entire .015" (for example)? 2. How is the zinc affected since its melting point is <800f? It seems that SBA gets us to the temps needed to anneal the brass without as much error as a flame. Since we are looking for consistency, even a partial annealing (assuming it doesn't fully anneal) would still be what we are looking for. All this to say, I'm not sure how Hot Lead Annealing cannot somehow anneal the brass when a temp/time is what we are after. Simple mechanical or chemical engineering tables should allow us to compute the time it takes 500c heat to transfer thru the neck. Then further help us compute how much time it takes to transfer the heat up the shoulder and case body. [/QUOTE]
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A question about anealing?
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