http://heat-wave-ir.com/en/tags/jewelry/ Recent content in Jewelry on Infrared Heat Wave Solutions Hugo en-us Wed, 29 Jul 2026 11:22:21 +0800 http://heat-wave-ir.com/en/posts/eliminating-thermal-dead-zones-in-glass-jewelry-annealing-with-infrared-heating-lamps/ Wed, 29 Jul 2026 11:22:21 +0800 http://heat-wave-ir.com/en/posts/eliminating-thermal-dead-zones-in-glass-jewelry-annealing-with-infrared-heating-lamps/ <p><img src="http://heat-wave-ir.com/images/cecdd66380470e00e2875c3ccbf92643.png" alt="Glass jewelry annealing lamp"></p> <h1 id="stop-your-glass-jewelry-from-cracking-dealing-with-cold-spots">Stop Your Glass Jewelry From Cracking: Dealing with Cold Spots</h1> <p>If you’ve ever spent hours on a complex piece of glass jewelry only to have it spontaneously shatter later, you know the frustration. It’s heartbreaking. Usually, the culprit is a &ldquo;dead zone&rdquo;—those annoying little pockets in your kiln where the heat just doesn&rsquo;t reach. Standard convection kilns are great, but they rely on air. Air is lazy. It struggles to get into tight curves or deep recesses. When one part of your piece stays cooler than the rest, you get internal stress. And stress leads to cracks. To fix this, we started bringing short-wave infrared (IR) lamps into the mix. Instead of waiting for hot air to drift into the right spot, IR lamps beam radiant energy directly into the glass. It doesn&rsquo;t matter how weird the shape is; the heat just penetrates.</p>