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cooling lehr

См. также в других словарях:

  • Lehr (glassmaking) — A lehr is a temperature controlled kiln for annealing objects made of glass. The name derives from the German verb lehr meaning to learn and is cognate with the English lere also meaning to learn or acquire knowledge of (something)Shorter Oxford… …   Wikipedia

  • industrial glass — Introduction       solid material that is normally lustrous and transparent in appearance and that shows great durability under exposure to the natural elements. These three properties lustre, transparency, and durability make glass a favoured… …   Universalium

  • Architectural glass — is glass that is used as a building material. It is most typically used as transparent glazing material in the building envelope, including windows in the external walls. Glass is also used for internal partitions and as an architectural feature …   Wikipedia

  • Ohio Northern University — Established 1871 Type Private Endowment $112.9 million[1] …   Wikipedia

  • Glass production — Glass is common in everyday life, from glass windows to glass containers. The manufacture of glass for everyday purposes may involve complexity and automation. This article deals with the mass production of glass. Glass container productionGlass… …   Wikipedia

  • Fred Singer — S. Fred Singer Born September 27, 1924 (1924 09 27) (age 87) Vienna, Austria Nationality Austrian, American Education B.E.E electrical engineering (1943) A.M. physics (1944) Ph.D. physics (1948) …   Wikipedia

  • Harald Specht — (* 20. Dezember 1951 in Köthen (Anhalt)) ist ein deutscher Chemiker, Lebensmittelingenieur und Autor. Neben mehr als 70 wissenschaftlichen Publikationen sowie zahlreichen Drehbüchern und Filmkommentaren verfasste er auch mehrere Sachbücher und… …   Deutsch Wikipedia

  • Dealkalization — is a process of surface modification applicable to glasses containing alkali ions, wherein a thin surface layer is created that has a lower concentration of alkali ions than is present in the underlying, bulk glass. This change in surface… …   Wikipedia

  • Annealing (glass) — Annealing is a process of slowly cooling glass to relieve internal stresses after it was formed. The process may be carried out in a temperature controlled kiln known as a Lehr. [E. F. Collins (1921) Electrically heated glass annealing lehr.… …   Wikipedia

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