http://ir-heat-core.com/en/tags/technology/ Recent content in Technology on Core Infrared Heating Tech Hugo en-us Fri, 03 Jul 2026 12:12:33 +0800 http://ir-heat-core.com/en/posts/preform-reheating-technology-ir/ Fri, 03 Jul 2026 12:12:33 +0800 http://ir-heat-core.com/en/posts/preform-reheating-technology-ir/ <p><img src="http://ir-heat-core.com/images/8ca7a2528ecc465e2c9e50970cbca24d.png" alt="Preform reheating technology IR"></p> <p>On the blow molding line, uneven preform heating quietly kills throughput. When the heating tunnel can’t hold a stable thermal profile, you get stretch marks, crystallization, and bottle weights that drift all over the place. The fallout is scrap, stoppages, and overtime. Infrared preform reheating is built to tackle that instability head-on.</p> <h2 id="what-matters-technically">What matters, technically</h2> <p>IR reheating isn’t just about temperature — it’s about controlling heat flux. We design the heating around a repeatable temperature rise curve and a uniform thermal field. Quartz or halogen emitters get selected and tuned to hit the right power <a href="https://goldisgood.com">density</a> and spectral response for PET preform surfaces, so you get fast, controlled surface heating without pushing heat too deep into the wall. Each zone is <a href="https://o-yate.net">calibrated</a> to match the preform wall thickness, delivering the exact energy needed without scorching or cold spots. The process leans on precise infrared penetration heating, absorbing energy at the preform wall to land the material right in the ideal stretch window.</p>