Ed Hoy's International - Lehr ovens are usually a long oven with temperature gradients and a conveyor belt so the glass heats and cools gradually. It can also be done with an
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Discover Glass on Twitter: "#architectureMW A look inside the lehr oven @ Red House Glass Cone, finished glass travelled through, slowly cooling https://t.co/wX7cw4MtPu" / Twitter
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![Photograph of laser glass leaving the lehr, annealing oven: (a) at Hoya... | Download Scientific Diagram Photograph of laser glass leaving the lehr, annealing oven: (a) at Hoya... | Download Scientific Diagram](https://www.researchgate.net/publication/293808036/figure/fig40/AS:614388469886976@1523493034330/Photograph-of-laser-glass-leaving-the-lehr-annealing-oven-a-at-Hoya-and-b-at-Schott.png)
Photograph of laser glass leaving the lehr, annealing oven: (a) at Hoya... | Download Scientific Diagram
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