http://ir-wave-qz-heater.com/en/tags/bulb/ Recent content in Bulb on Infrared Wave Quartz Heaters Hugo en-us Sat, 18 Jul 2026 02:35:55 +0800 http://ir-wave-qz-heater.com/en/posts/scientific-glass-annealing-bulb/ Sat, 18 Jul 2026 02:35:55 +0800 http://ir-wave-qz-heater.com/en/posts/scientific-glass-annealing-bulb/ <p><img src="http://ir-wave-qz-heater.com/images/c147974466f1761700b8a23cd6bc5910.png" alt="Scientific glass annealing bulb"></p> <h1 id="fixing-those-annoying-cold-spots-in-glass-annealing"><a href="https://goldisgood.com">Fixing</a> Those Annoying Cold Spots in Glass Annealing</h1> <p>If you’ve ever worked with complex scientific glass—think weirdly shaped flasks, condensers, or custom bulbs—you know the headache of the &ldquo;dead zone.&rdquo; You put your piece in the kiln, you wait, and you <em>hope</em> it’s heating evenly. But standard heaters often miss those tricky spots. The glass doesn&rsquo;t hit the right temperature, internal stress builds up, and then—<em>crack</em>—your hard work shatters for no apparent reason. It&rsquo;s frustrating. That’s why we use short-wave infrared (IR) lamps. Instead of just heating the air, they shoot radiant energy straight into the glass.</p>