http://warm-ir-quartz-heater.com/en/tags/why/ Recent content in Why on Warm IR Quartz Heaters Hugo en-us Tue, 28 Jul 2026 03:49:02 +0800 http://warm-ir-quartz-heater.com/en/posts/customizing-infrared-spectral-peaks-for-glass-annealing-and-additive-absorption/ Tue, 28 Jul 2026 03:49:02 +0800 http://warm-ir-quartz-heater.com/en/posts/customizing-infrared-spectral-peaks-for-glass-annealing-and-additive-absorption/ <p><img src="http://warm-ir-quartz-heater.com/images/0539f8d11cfcdd1efd2329f9dbab37bb.png" alt="Why glass cracks in annealing"></p> <h1 id="why-your-glass-is-cracking-and-how-to-actually-fix-it">Why Your Glass is Cracking (and How to Actually Fix It)</h1> <p>Ever had a piece of glass snap right during annealing? It’s frustrating. Usually, it <a href="https://henruite.com">happens</a> because the outside of the glass is heating up way faster than the core. You end up with these internal thermal stresses that just rip the material apart. Most people try to fix this by cranking up standard IR lamps. But here&rsquo;s the thing: those lamps throw out a broad spectrum of energy that the glass mostly just ignores or bounces right back. You&rsquo;re wasting power and still getting cracks.</p>