http://outdoor-ir-heating.com/en/tags/zone/ Recent content in Zone on Outdoor Infrared Heating Hugo en-us Mon, 01 Jun 2026 22:35:48 +0800 http://outdoor-ir-heating.com/en/posts/thermocouple-for-preform-oven-zone/ Mon, 01 Jun 2026 22:35:48 +0800 http://outdoor-ir-heating.com/en/posts/thermocouple-for-preform-oven-zone/ <p><img src="http://outdoor-ir-heating.com/images/b8ffcfbb4682d98c2ed2bd0e55eea04a.png" alt="Thermocouple for preform oven zone"></p> <p>On the blow molding line, the oven zone is where you dial in the stretch ratio and lock in bottle weight. But when the preform oven thermocouple starts drifting, you don’t just lose a degree—you lose repeatability. Next thing you know, you’re seeing color shift, uneven wall thickness, and the scrap pile starts climbing while the machine keeps turning.</p>