http://ir-wave-qz-heater.com/en/tags/long/ Recent content in Long on Infrared Wave Quartz Heaters Hugo en-us Mon, 20 Jul 2026 10:12:43 +0800 http://ir-wave-qz-heater.com/en/posts/long-life-infrared-heating-tube/ Mon, 20 Jul 2026 10:12:43 +0800 http://ir-wave-qz-heater.com/en/posts/long-life-infrared-heating-tube/ <p><img src="http://ir-wave-qz-heater.com/images/05f46fc64d24437ec99c838e4d66f914.png" alt="Long life infrared heating tube"></p> <h1 id="fixing-those-pesky-cold-spots-in-glass-annealing">Fixing Those Pesky Cold Spots in Glass Annealing</h1> <p>If you’ve ever worked with glassware that has weird shapes—think narrow necks or those wide, flared rims—you know the headache of &ldquo;dead zones.&rdquo; You put your piece in the kiln, everything looks fine, but those recessed areas just don&rsquo;t get the heat they need. The result? <a href="https://henruite.com">Uneven</a> stress, a sudden <em>crack</em>, and a lot of wasted time. We deal with this by using long-life infrared (IR) heating tubes. Instead of relying on the air to move the heat around, these tubes shoot radiant energy straight at the glass. It basically ignores the air gap and hits the surface directly.</p>