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Type metal information


A sort made from type metal

In printing, type metal refers to the metal alloys used in traditional typefounding and hot metal typesetting. Historically, type metal was an alloy of lead, tin and antimony in different proportions depending on the application, be it individual character mechanical casting for hand setting, mechanical line casting or individual character mechanical typesetting and stereo plate casting. The proportions used are in the range: lead 50‒86%, antimony 11‒30% and tin 3‒20%. Antimony and tin are added to lead for durability while reducing the difference between the coefficients of expansion of the matrix and the alloy. Apart from durability, the general requirements for type-metal are that it should produce a true and sharp cast, and retain correct dimensions and form after cooling down. It should also be easy to cast, at reasonable low melting temperature, iron should not dissolve in the molten metal, and mould and nozzles should stay clean and easy to maintain. Today, Monotype machines can utilize a wide range of different alloys. Mechanical linecasting equipment uses alloys that are close to eutectic.

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Type metal

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Compact Cassette tape types and formulations

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printing and typography, hot metal typesetting (also called mechanical typesetting, hot lead typesetting, hot metal, and hot type) is a technology for typesetting...

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CMOS

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Complementary metal–oxide–semiconductor (CMOS, pronounced "sea-moss", /siːmɑːs/, /-ɒs/) is a type of metal–oxide–semiconductor field-effect transistor...

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Flong

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Type O Negative

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binding of the metals. It is a type of welding that uses a welding power supply to create an electric arc between a metal stick ("electrode") and the base...

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Johannes Gutenberg

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Gutenberg's method for making type is traditionally considered to have included a type metal alloy and a hand mould for casting type. The alloy was a mixture...

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intensity typically increases with proximity. Another common type are stationary "walk through" metal detectors used at access points in prisons, courthouses...

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Lath

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expanded to mean any type of backing material for plaster. This includes metal wire mesh or expanded metal that is applied to a wood or metal framework as matrix...

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Extrinsic semiconductor

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regions of n-type semiconductor, separated by a region of p-type semiconductor, with metal contacts attached to each part. A solid substance can conduct...

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Twisted Metal

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concept, Twisted Metal is a demolition derby that emphasizes the use of ballistic projectiles, machine guns, mines, and other types of weapons (up to...

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specializing in this type of work are called fab shops. The end products of other common types of metalworking, such as machining, metal stamping, forging...

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Gothic metal

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metal (or goth metal) is a fusion genre combining the aggression of heavy metal with the dark atmospheres of gothic rock. The music of gothic metal is...

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List of heavy metal bands

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doom metal bands List of folk metal bands List of glam metal bands and artists List of gothic metal bands List of grindcore bands List of groove metal bands...

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