Stress relief infrared for glass

Mon, 29 Jun 2026 03:39:57 +0800

You know the scene on the line—glass cracks right after bending, or a laminated windshield comes back from inspection because the PVB didn’t cure evenly. Nine times out of ten, the culprit is hidden in plain sight: uneven heating that leaves thermal stress locked in. We built stress-relief infrared for glass to hit that problem where it lives, not after you’ve already piled up scrap. Our NIR emitters put out short-wave infrared with fast response and tight control—response in seconds, stable zone control that keeps the thermal field uniform across the sheet. That translates to predictable heating that avoids sharp thermal gradients, so stress doesn’t pile up at edges or in thin spots. In practice, you get fewer edge fractures in tempering, tighter repeatability in bending profiles, and more consistent cure through the laminated stack. Energy use drops too, because we heat the glass directly, not the air around it. Here is why it matters on the equipment you actually run. In hot bending, the mold runs hot and the glass follows—our modules heat the glass fast without driving the tooling temperature through the roof, so shape repeatability improves. In tempering, uniform preheat kills the cold spots that cause breakouts during quench. In EVA/SGP/PVB lamination, curing evenly across the stack cuts voids and keeps optical distortion in check. For coatings, controlled NIR drying pulls solvent out without skinning the film, so adhesion and durability hold steady. Install is straightforward, but alignment is not optional. The emitter array has to track the glass path and match the coating’s emissivity—otherwise you get hot bands. We size power and spacing to your line speed and pane geometry, and we always recommend thermal verification after setup. Expect shorter warm-up and longer emitter life, but plan on periodic calibration to keep the process window where it needs to be.

Relief on Outdoor Infrared Heating Solutions

Stress relief infrared for glass