Thermal stress glass cutting

Wed, 29 Jul 2026 05:05:41 +0800

Getting the Heat Right: Why Your Glass Cutting is Jagged

If you’ve ever dealt with jagged edges or random cracks while cutting glass with thermal stress, you know how frustrating it is. Usually, it comes down to one thing: the heat isn’t hitting the right spot. To get that perfect, clean break, you need a precise temperature gradient. But you can’t just blast the glass with heat and hope for the best.

The Secret is in the “Peak”

Most standard IR lamps just throw out a broad wave of energy. A lot of that is wasted. Here’s the thing: most industrial glass has additives—things like iron oxides or other dopants—that only “like” certain wavelengths of light. If your lamp is shouting in a frequency the glass can’t hear, you’re just wasting electricity. We fix this by tweaking the filament and the quartz coating. We shift the lamp’s emission peak so it lines up exactly with what the glass is actually absorbing. When those two match up? The material sucks up the heat instantly. You get a sharp thermal shock, and the glass snaps exactly where it’s supposed to.

Stress on The Official Infrared Heater Store

Thermal stress glass cutting

Getting the Heat Right: Why Your Glass Cutting is Jagged

The Secret is in the “Peak”