Aluminum reflector for IR lamp

Mon, 27 Jul 2026 11:17:12 +0800

Stop Guessing with Your Glass Annealing

If you’ve ever dealt with “cold spots” across a sheet of glass, you know the headache. You think you’ve got your thermal soak dialed in, but then you find internal stress or, worse, a shattered batch. Most people blame the lamp filaments first. But here’s the thing: it’s usually the aluminum reflectors. If they aren’t directing that heat perfectly, it doesn’t matter how good your lamps are.

Why “Close Enough” Isn’t Good Enough

On the surface, a standard aluminum reflector looks fine. But under a microscope? It’s a different story. Tiny deviations in the surface mess with the angle of the IR beam. Imagine one reflector pushing out 85% of the energy while the one next to it hits 92%. Your glass temperature is going to jump around. That’s why we stick to high-purity aluminum with a precision-machined parabolic profile. It keeps the beam angle identical for every single lamp in the array. When you’re setting up your heating tunnel, you want a flat thermal profile. You want the energy density to stay the same from the center of the lamp all the way to the edges. When that happens, you can stop “over-heating” the whole batch just to make sure the weakest lamp does its job.

Aluminum on Cozy Home Infrared Heat

Aluminum reflector for IR lamp

Stop Guessing with Your Glass Annealing

Why “Close Enough” Isn’t Good Enough