Let’s Talk Quartz Halogen IR Lamps
Basically, these lamps are just a tungsten filament tucked inside a high-purity quartz tube. We add a bit of halogen gas in there to stop the filament from burning out too fast. Because of that chemistry, we can crank the heat way higher than your average light bulb. That’s how we get that punchy, shortwave infrared emission.
Getting the Power Right
When you’re picking a lamp, the voltage and wattage are what really drive your heat flux. If you jam a lot of wattage into a short tube, you get some seriously intense heat. I usually recommend 400V systems if you’re dealing with longer tubes. It keeps the current stable and stops that annoying voltage drop. But be careful here.**Double-check your power supply.**If you plug a low-voltage lamp into a high-voltage line, it’ll pop instantly. Not a great way to start the morning.
The Build: Quartz and Connectors
We stick with quartz because it doesn’t freak out when the temperature swings wildly. Plus, it lets that shortwave IR slide right through without soaking up the heat. Depending on what you’re actually heating, you might want a coating. Gold or aluminum is the way to go if you want to bounce the heat forward. It basically doubles the intensity on your target. For the wiring, we mostly use R7s or SK15 connectors. They’re easy, they fit right in where your old heaters were, and they stay put even if your machinery is shaking like crazy.
Putting Them to Work
You’ll see these everywhere in PET bottle blowing or plastic welding. They’re great because they hit the preform fast without wasting energy heating up the air around it. The response time is almost instant. If you use SCR controllers, you can dial in the heat for different zones and get it exactly where you want it. One last tip: keep an eye on your reflectors. High-density lamps put a lot of stress on them. If they get dirty or pitted, your efficiency tank, and you might actually overheat the tube.Keep them clean, and your lamps will last way longer.