http://warm-ir-heater-core.com/en/tags/cutter/ Recent content in Cutter on Warm IR Heater Core Tech Hugo en-us Sat, 18 Jul 2026 03:00:34 +0800 http://warm-ir-heater-core.com/en/posts/diy-glass-bottle-cutter-heater/ Sat, 18 Jul 2026 03:00:34 +0800 http://warm-ir-heater-core.com/en/posts/diy-glass-bottle-cutter-heater/ <p><img src="http://warm-ir-heater-core.com/images/188f9035a5ed66fdec335fe67762e522.png" alt="DIY glass bottle cutter heater"></p> <h1 id="dealing-with-the-stress-of-glass-annealing">Dealing with the Stress of Glass Annealing</h1> <p>When you cut and shape glass bottles, you&rsquo;re basically trapping a lot of tension inside the material. If you just leave it alone, that stress builds up until the bottle decides to shatter on its own. Not exactly what you want. To fix this, you have to cool the glass down carefully. Now, you could use a standard oven, but those are slow. Like, <em>really</em> slow. If you&rsquo;re running a continuous line, you can&rsquo;t afford to wait around. That’s where shortwave infrared (SWIR) lamps come in. Instead of just warming the air, these lamps shoot high-energy photons straight through the surface. It heats the glass from the inside out.</p>