http://pure-ir-heater.com/en/tags/tempering/ Recent content in Tempering on Pure Infrared Heating Systems Hugo en-us Sun, 19 Jul 2026 11:17:41 +0800 http://pure-ir-heater.com/en/posts/glass-tempering-preheating-lamp/ Sun, 19 Jul 2026 11:17:41 +0800 http://pure-ir-heater.com/en/posts/glass-tempering-preheating-lamp/ <p><img src="http://pure-ir-heater.com/images/0539f8d11cfcdd1efd2329f9dbab37bb.png" alt="Glass tempering preheating lamp"></p> <h1 id="why-your-lab-glass-keeps-breaking-and-how-to-fix-it">Why Your Lab Glass Keeps Breaking (and How to Fix It)</h1> <p>Ever had a piece of lab glass just&hellip; pop? No warning, no obvious impact. Just a shatter. Usually, it&rsquo;s because of internal stress. If you heat the glass too quickly or let it cool down unevenly, you&rsquo;re basically baking micro-fractures right into the material. To stop that, we use high-precision infrared preheating lamps to hit the annealing point exactly. In this world, a difference of just 1°C is the gap between a beaker that lasts for years and one that explodes the second you put it under a vacuum.</p>