From Surf Wiki (app.surf) — the open knowledge base

Lehr (glassmaking)

Quality 0.00 · 0 views · Updated 1 month ago

In the manufacture of float glass, a lehr oven is a long kiln with an end-to-end temperature gradient, which is used for annealing newly made glass objects that are transported through the temperature gradient either on rollers or on a conveyor belt. The annealing renders glass into a stronger material with fewer internal stresses, and with a lower probability of breaking.