http://warm-ir-heat-master.com/en/tags/tempering/ Recent content in Tempering on Warm IR Heating Master Hugo en-us Sat, 18 Jul 2026 02:55:35 +0800 http://warm-ir-heat-master.com/en/posts/infrared-heating-for-glass-tempering/ Sat, 18 Jul 2026 02:55:35 +0800 http://warm-ir-heat-master.com/en/posts/infrared-heating-for-glass-tempering/ <p><img src="http://warm-ir-heat-master.com/images/2bad5999f7b19d5c4829fec6cfc866a1.png" alt="Infrared heating for glass tempering"></p> <h1 id="dealing-with-cold-spots-in-complex-glassware">Dealing with Cold Spots in Complex Glassware</h1> <p>If you&rsquo;ve ever run complex glass shapes through an annealing lehr, you know the nightmare of &ldquo;cold spots.&rdquo; It&rsquo;s frustrating. You think everything is heating up fine, but standard convection just doesn&rsquo;t cut it. Air is lazy—it doesn&rsquo;t want to crawl deep into a <a href="https://o-yate.com">narrow</a> neck or hug the tight curves of a vessel. The result? Internal stress. Then, just when you think the piece is safe, it cracks. Spontaneously. Right in your hands.</p>