https://www.frit-happens.co.uk/w/index.php?action=history&feed=atom&title=Annealing_range 2026-09-10T02:27:08Z Revision history for this page on the wiki MediaWiki 1.45.1 https://www.frit-happens.co.uk/w/index.php?title=Annealing_range&diff=222&oldid=prev 2008-11-12T23:58:26Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en-GB"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 23:58, 12 November 2008</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The annealing range for glass is bounded by two temperatures. The lower and upper annealing points. Different [[glass]] has different temperatures for these points.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The annealing range for glass is bounded by two temperatures. The lower and upper annealing points. Different [[glass]] has different temperatures for these points.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Generally speaking it is safe to anneal a piece anywhere within this range, but beware of [[annealing]] at a temperature that is towards the top of <del style="font-weight: bold; text-decoration: none;">the </del>range as depending on the accuracy of your [[kiln]] <del style="font-weight: bold; text-decoration: none;">control </del>you may reach the [[glass]]' [[softening point]].</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">Between these two temperatures the [[glass]] is liquid enough for the molecules to move about and even out any stresses that may have built up in the glass while it was being worked. But not so hot that the glass can [[slump]] (which would occur above the [[softening point]]) and thereby ruin or distort any pieces in the kiln.</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Generally speaking it is safe to anneal a piece anywhere within this range, but beware of [[annealing]] at a temperature that is towards the top of <ins style="font-weight: bold; text-decoration: none;">this </ins>range<ins style="font-weight: bold; text-decoration: none;">, </ins>as depending on the accuracy of your [[kiln]] <ins style="font-weight: bold; text-decoration: none;">[[controller]] </ins>you may <ins style="font-weight: bold; text-decoration: none;">find the temperature in parts of the kiln can unintentionally </ins>reach the [[glass]]' [[softening point]].</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">It is always a good idea to check your kiln using a [[pyrometer]] or [[thermocouple]] to check the [[kiln]]'s actual [[annealing]] temperature</ins></div></td></tr> </table>

Dickie https://www.frit-happens.co.uk/w/index.php?title=Annealing_range&diff=220&oldid=prev 2008-11-12T23:48:40Z

<p>New page: The annealing range for glass is bounded by two temperatures. The lower and upper annealing points. Different <a href="/wiki/Glass" title="Glass">glass</a> has different temperatures for these points. Generally speaking it ...</p> <p><b>New page</b></p><div>The annealing range for glass is bounded by two temperatures. The lower and upper annealing points. Different [[glass]] has different temperatures for these points.<br /> <br /> Generally speaking it is safe to anneal a piece anywhere within this range, but beware of [[annealing]] at a temperature that is towards the top of the range as depending on the accuracy of your [[kiln]] control you may reach the [[glass]]&#039; [[softening point]].</div>

Dickie