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What is type metal?

+2 votes
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asked Aug 21, 2016 in Chemistry by Rahul Roy (7,955 points)

1 Answer

+2 votes
answered Aug 21, 2016 by sanjeev (19,596 points)
In printing, type metal (sometimes called hot metal) refers to the metal alloys used in traditional type founding and hot metal typesetting. Lead is the main constituent of these alloys. Antimony and tin are added to make the character produced durable and tough while reducing the difference between the coefficients of expansion of the matrix and the alloy.

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